WIP: enforce buffer ordering in multibuffer

vim: Add any brackets to support motions like ab and ib to work with any type of brackets (#23679 )
# Add AnyBrackets text object for Vim mode ## Overview This PR introduces a new text object `AnyBrackets` that allows operations on the closest matching pair of brackets, regardless of the bracket type. This enhances the editing experience by reducing the need to identify specific bracket types before performing text operations. By default, this feature is NOT mapped to any key in vim.json. However, it can be enabled manually, and the recommended key for mapping is b: If you want to add it to your zed keymap config you need to add the following config: ```json { "context": "vim_operator == a || vim_operator == i || vim_operator == cs", "bindings": { "b": "vim::AnyBrackets" } } ``` ## Features - New text object that works with parentheses `()`, square brackets `[]`, curly braces `{}`, they are also know as round brackets, square brackets and curly brackets in english. - Automatically finds the closest matching pair of any bracket type - Works with all standard Vim operators (delete, change, yank) - Supports both "inside" and "around" variants (`i` and `a`) ## Usage Examples ```vim # Delete inside the closest brackets di( # Works on (), [] or {} depending on which is closest # Change around the closest brackets ca[ # Works on (), [] or {} depending on which is closest # Visual select inside the closest brackets vi{ # Works on (), [] or {} depending on which is closest ``` # References: - Based on the popular plugin https://github.com/echasnovski/mini.ai # Important Notes This PR also fixes a bug with nested quotes on AnyQuotes, now it works fine with any type of quotes or brackets. Please take a look at the new tests to understand the expected behavior. Release Notes: - vim: Add `ab`/`ib` "AnyBrackets" text objects that are the smallest of `a(`, `a[` or `a{` or `i(`, `i[` or `i{` - vim: Fix aq/iq "AnyQuotes" text objects when they are nested
2025-01-29 22:44:17 -07:00 · 2025-01-28 20:23:17 -07:00 · 2025-01-29 01:08:51 +00:00 · 2025-01-28 19:04:21 -05:00 · 2025-01-28 16:02:03 -07:00 · 2025-01-28 22:52:50 +00:00
766 changed files with 49704 additions and 37452 deletions
--- a/.github/ISSUE_TEMPLATE/0_feature_request.yml
+++ b/.github/ISSUE_TEMPLATE/0_feature_request.yml
@@ -1,34 +1,15 @@
 name: Feature Request
 description: "Tip: open this issue template from within Zed with the `request feature` command palette action"
-labels: ["admin read", "triage", "enhancement"]
+type: "Feature"
 body:
-  - type: checkboxes
-    attributes:
-      label: Check for existing issues
-      description: Check the backlog of issues to reduce the chances of creating duplicates; if an issue already exists, place a `+1` (👍) on it.
-      options:
-        - label: Completed
-          required: true
  - type: textarea
    attributes:
      label: Describe the feature
-      description: A clear and concise description of what you want to happen.
-    validations:
-      required: true
-  - type: textarea
-    id: environment
-    attributes:
-      label: Zed Version and System Specs
-      description: Zed version, release channel, architecture (x86_64 or aarch64), OS (macOS version / Linux distro and version) and RAM amount.
-      placeholder: |
-        <!-- In Zed run `copy system specs into clipboard` from the Zed command palette and paste here. -->
-        <!-- Alternatively spawn `request feature` and this field will be autopopulated -->
-    validations:
-      required: true
-  - type: textarea
-    attributes:
-      label: |
-        If applicable, add mockups / screenshots to help present your vision of the feature
-      description: Drag images into the text input below
-    validations:
-      required: false
+      description: A one line summary, and description of what you want to happen.
+      value: |
+        Summary:
+
+        Description:
+
+        Screenshots:
+          <!-- drag files here -->
--- a/.github/ISSUE_TEMPLATE/1_bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/1_bug_report.yml
@@ -1,54 +1,34 @@
 name: Bug Report
 description: |
-  Use this template for **non-crash-related** bug reports.
-  Tip: open this issue template from within Zed with the `file bug report` command palette action.
-labels: ["admin read", "triage", "bug"]
+  Something is broken in Zed (exclude crashing).
+type: "Bug"
 body:
-  - type: checkboxes
-    attributes:
-      label: Check for existing issues
-      description: Check the backlog of issues to reduce the chances of creating duplicates; if an issue already exists, place a `+1` (👍) on it.
-      options:
-        - label: Completed
-          required: true
  - type: textarea
    attributes:
      label: Describe the bug / provide steps to reproduce it
-      description: A clear and concise description of what the bug is.
+      description: A one line summary, and detailed reproduction steps
+      value: |
+        Summary:
+
+        <!-- Include all steps necessary to reproduce from a clean Zed installation. Be verbose -->
+        Steps to trigger the problem:
+        1.
+        2.
+        3.
+
+        Actual Behavior:
+
+        Expected Behavior:
+
    validations:
      required: true
+
  - type: textarea
    id: environment
    attributes:
      label: Zed Version and System Specs
-      description: Zed version, release channel, architecture (x86_64 or aarch64), OS (macOS version / Linux distro and version) and RAM amount.
+      description: 'Open Zed, and in the command palette select "zed: Copy System Specs Into Clipboard"'
      placeholder: |
-        <!-- In Zed run `copy system specs into clipboard` from the Zed command palette and paste here. -->
-        <!-- Alternatively spawn `file bug report` and this field will be autopopulated -->
-        <!-- If Zed won't launch, include the equivalent with other relevant details (e.g. video card driver version for display bugs, etc) -->
-        <!-- Zed Version: 0.xxx.x; Channel: Stable, OS: macOS xx.xx, RAM: XXGB, Architecture: x86_64"
+        Output of "zed: Copy System Specs Into Clipboard"
    validations:
      required: true
-  - type: textarea
-    attributes:
-      label: If applicable, add screenshots or screencasts of the incorrect state / behavior
-      description: Drag images / videos into the text input below
-    validations:
-      required: false
-  - type: textarea
-    attributes:
-      label: If applicable, attach your Zed.log file to this issue.
-      description: |
-        macOS: `~/Library/Logs/Zed/Zed.log`
-        Linux: `~/.local/share/zed/logs/Zed.log` or $XDG_DATA_HOME
-        If you only need the most recent lines, you can run the `zed: open log` command palette action to see the last 1000.
-      value: |
-        <details><summary>Zed.log</summary>
-
-        <!-- Click below this line and paste or drag-and-drop your log-->
-        ```
-
-        ```
-        <!-- Click above this line and paste or drag-and-drop your log--></details>
-    validations:
-      required: false
--- a/.github/ISSUE_TEMPLATE/2_crash_report.yml
+++ b/.github/ISSUE_TEMPLATE/2_crash_report.yml
@@ -1,26 +1,33 @@
 name: Crash Report
-description: |
-  Use this template for crash reports.
-labels: ["admin read", "triage", "bug", "panic / crash"]
+description: Zed is Crashing or Hanging
+type: "Crash"
 body:
-  - type: checkboxes
-    attributes:
-      label: Check for existing issues
-      description: Check the backlog of issues to reduce the chances of creating duplicates; if an issue already exists, place a `+1` (👍) on it.
-      options:
-        - label: Completed
-          required: true
  - type: textarea
    attributes:
      label: Describe the bug / provide steps to reproduce it
-      description: A clear and concise description of what the bug is.
+      description: A one line summary, and detailed reproduction steps
+      value: |
+        Summary:
+
+        <!-- Include all steps necessary to reproduce from a clean Zed installation. Be verbose -->
+        Steps to trigger the problem:
+        1.
+        2.
+        3.
+
+        Actual Behavior:
+
+        Expected Behavior:
+
    validations:
      required: true
  - type: textarea
    id: environment
    attributes:
-      label: Environment
-      description: Run the `copy system specs into clipboard` command palette action and paste the output in the field below. If you are unable to run the command, please include your Zed version and release channel, operating system and version, RAM amount, and architecture.
+      label: Zed Version and System Specs
+      description: 'Open Zed, and in the command palette select "zed: Copy System Specs Into Clipboard"'
+      placeholder: |
+        Output of "zed: Copy System Specs Into Clipboard"
    validations:
      required: true
  - type: textarea
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -1,18 +1,9 @@
 # yaml-language-server: $schema=https://json.schemastore.org/github-issue-config.json
 blank_issues_enabled: false
 contact_links:
-  - name: Language Request
-    url: https://github.com/zed-industries/extensions/issues/new?assignees=&labels=language&projects=&template=1_language_request.yml&title=%3Cname_of_language%3E
-    about: Request a language in the extensions repository
-  - name: Theme Request
-    url: https://github.com/zed-industries/extensions/issues/new?assignees=&labels=theme&projects=&template=0_theme_request.yml&title=%3Cname_of_theme%3E+theme
-    about: Request a theme in the extensions repository
-  - name: Top-Ranking Issues
-    url: https://github.com/zed-industries/zed/issues/5393
-    about: See an overview of the most popular Zed issues
-  - name: Platform Support
-    url: https://github.com/zed-industries/zed/issues/5391
-    about: A quick note on platform support
-  - name: Positive Feedback
-    url: https://github.com/zed-industries/zed/discussions/5397
-    about: A central location for kind words about Zed
+  - name: Zed Discussion Forum
+    url: https://github.com/zed-industries/zed/discussions
+    about: A community discussion forum
+  - name: "Zed Discord: #Support Channel"
+    url: https://zed.dev/community-links
+    about: Real-time discussion and user support
--- a/.github/workflows/bump_patch_version.yml
+++ b/.github/workflows/bump_patch_version.yml
@@ -14,6 +14,7 @@ concurrency:

 jobs:
  bump_patch_version:
+    if: github.repository_owner == 'zed-industries'
    runs-on:
      - buildjet-16vcpu-ubuntu-2204
    steps:
--- a/.github/workflows/community_close_stale_issues.yml
+++ b/.github/workflows/community_close_stale_issues.yml
@@ -19,11 +19,7 @@ jobs:

            Thanks for your help!
          close-issue-message: "This issue was closed due to inactivity. If you're still experiencing this problem, please open a new issue with a link to this issue."
-          # We will increase `days-before-stale` to 365 on or after Jan 24th,
-          # 2024. This date marks one year since migrating issues from
-          # 'community' to 'zed' repository. The migration added activity to all
-          # issues, preventing 365 days from working until then.
-          days-before-stale: 180
+          days-before-stale: 120
          days-before-close: 7
          any-of-issue-labels: "bug,panic / crash"
          operations-per-run: 1000
--- a/.github/workflows/community_delete_comments.yml
+++ b/.github/workflows/community_delete_comments.yml
@@ -9,6 +9,7 @@ permissions:

 jobs:
  delete_comment:
+    if: github.repository_owner == 'zed-industries'
    runs-on: ubuntu-latest
    steps:
      - name: Check for specific strings in comment
--- a/.github/workflows/community_release_actions.yml
+++ b/.github/workflows/community_release_actions.yml
@@ -6,6 +6,7 @@ on:

 jobs:
  discord_release:
+    if: github.repository_owner == 'zed-industries'
    runs-on: ubuntu-latest
    steps:
      - name: Get release URL
@@ -28,7 +29,8 @@ jobs:
          maxLength: 2000
          truncationSymbol: "..."
      - name: Discord Webhook Action
-        uses: tsickert/discord-webhook@c840d45a03a323fbc3f7507ac7769dbd91bfb164 # v5.3.0
+        uses: tsickert/discord-webhook@86dc739f3f165f16dadc5666051c367efa1692f4 # v6.0.0
        with:
          webhook-url: ${{ secrets.DISCORD_WEBHOOK_URL }}
          content: ${{ steps.get-content.outputs.string }}
+          flags: 4 # suppress embeds - https://discord.com/developers/docs/resources/message#message-object-message-flags
--- a/.github/workflows/community_update_all_top_ranking_issues.yml
+++ b/.github/workflows/community_update_all_top_ranking_issues.yml
@@ -1,25 +0,0 @@
-name: Update All Top Ranking Issues
-
-on:
-  schedule:
-    - cron: "0 */12 * * *"
-  workflow_dispatch:
-
-jobs:
-  update_top_ranking_issues:
-    runs-on: ubuntu-latest
-    if: github.repository == 'zed-industries/zed'
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-      - name: Set up uv
-        uses: astral-sh/setup-uv@caf0cab7a618c569241d31dcd442f54681755d39 # v3
-        with:
-          version: "latest"
-          enable-cache: true
-          cache-dependency-glob: "script/update_top_ranking_issues/pyproject.toml"
-      - name: Install Python 3.13
-        run: uv python install 3.13
-      - name: Install dependencies
-        run: uv sync --project script/update_top_ranking_issues -p 3.13
-      - name: Run script
-        run: uv run --project script/update_top_ranking_issues script/update_top_ranking_issues/main.py --github-token ${{ secrets.GITHUB_TOKEN }} --issue-reference-number 5393
--- a/.github/workflows/community_update_weekly_top_ranking_issues.yml
+++ b/.github/workflows/community_update_weekly_top_ranking_issues.yml
@@ -1,25 +0,0 @@
-name: Update Weekly Top Ranking Issues
-
-on:
-  schedule:
-    - cron: "0 15 * * *"
-  workflow_dispatch:
-
-jobs:
-  update_top_ranking_issues:
-    runs-on: ubuntu-latest
-    if: github.repository == 'zed-industries/zed'
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-      - name: Set up uv
-        uses: astral-sh/setup-uv@caf0cab7a618c569241d31dcd442f54681755d39 # v3
-        with:
-          version: "latest"
-          enable-cache: true
-          cache-dependency-glob: "script/update_top_ranking_issues/pyproject.toml"
-      - name: Install Python 3.13
-        run: uv python install 3.13
-      - name: Install dependencies
-        run: uv sync --project script/update_top_ranking_issues -p 3.13
-      - name: Run script
-        run: uv run --project script/update_top_ranking_issues script/update_top_ranking_issues/main.py --github-token ${{ secrets.GITHUB_TOKEN }} --issue-reference-number 6952 --query-day-interval 7
--- a/.github/workflows/danger.yml
+++ b/.github/workflows/danger.yml
@@ -11,6 +11,7 @@ on:

 jobs:
  danger:
+    if: github.repository_owner == 'zed-industries'
    runs-on: ubuntu-latest

    steps:
--- a/.github/workflows/deploy_collab.yml
+++ b/.github/workflows/deploy_collab.yml
@@ -12,6 +12,7 @@ env:
 jobs:
  style:
    name: Check formatting and Clippy lints
+    if: github.repository_owner == 'zed-industries'
    runs-on:
      - self-hosted
      - test
--- a/.github/workflows/publish_extension_cli.yml
+++ b/.github/workflows/publish_extension_cli.yml
@@ -12,6 +12,7 @@ env:
 jobs:
  publish:
    name: Publish zed-extension CLI
+    if: github.repository_owner == 'zed-industries'
    runs-on:
      - ubuntu-latest
    steps:
--- a/.github/workflows/randomized_tests.yml
+++ b/.github/workflows/randomized_tests.yml
@@ -18,6 +18,7 @@ env:
 jobs:
  tests:
    name: Run randomized tests
+    if: github.repository_owner == 'zed-industries'
    runs-on:
      - buildjet-16vcpu-ubuntu-2204
    steps:
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -456,6 +456,7 @@ dependencies = [
 "futures 0.3.31",
 "fuzzy",
 "gpui",
+ "heed",
 "html_to_markdown",
 "http_client",
 "indoc",
@@ -470,6 +471,7 @@ dependencies = [
 "menu",
 "multi_buffer",
 "parking_lot",
+ "paths",
 "picker",
 "project",
 "prompt_library",
@@ -490,7 +492,6 @@ dependencies = [
 "time",
 "time_format",
 "ui",
- "unindent",
 "util",
 "uuid",
 "workspace",
@@ -559,6 +560,7 @@ version = "0.1.0"
 dependencies = [
 "anthropic",
 "anyhow",
+ "deepseek",
 "feature_flags",
 "fs",
 "gpui",
@@ -635,6 +637,7 @@ dependencies = [
 "ui",
 "util",
 "workspace",
+ "worktree",
 ]

 [[package]]
@@ -3684,6 +3687,18 @@ dependencies = [
 "winapi",
 ]

+[[package]]
+name = "deepseek"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "futures 0.3.31",
+ "http_client",
+ "schemars",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "deflate64"
 version = "0.1.9"
@@ -5463,6 +5478,7 @@ dependencies = [
 name = "gpui_macros"
 version = "0.1.0"
 dependencies = [
+ "gpui",
 "proc-macro2",
 "quote",
 "syn 1.0.109",
@@ -5613,11 +5629,11 @@ dependencies = [

 [[package]]
 name = "hashlink"
-version = "0.9.1"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ba4ff7128dee98c7dc9794b6a411377e1404dba1c97deb8d1a55297bd25d8af"
+checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
 dependencies = [
- "hashbrown 0.14.5",
+ "hashbrown 0.15.2",
 ]

 [[package]]
@@ -6806,6 +6822,7 @@ dependencies = [
 "anyhow",
 "base64 0.22.1",
 "collections",
+ "deepseek",
 "futures 0.3.31",
 "google_ai",
 "gpui",
@@ -6849,6 +6866,7 @@ dependencies = [
 "client",
 "collections",
 "copilot",
+ "deepseek",
 "editor",
 "feature_flags",
 "fs",
@@ -6954,6 +6972,7 @@ dependencies = [
 "serde_json",
 "settings",
 "smol",
+ "snippet_provider",
 "task",
 "text",
 "theme",
@@ -7045,7 +7064,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
 dependencies = [
 "cfg-if",
- "windows-targets 0.52.6",
+ "windows-targets 0.48.5",
 ]

 [[package]]
@@ -7395,7 +7414,6 @@ dependencies = [
 "serde",
 "serde_json",
 "smol",
- "text",
 "util",
 ]

@@ -7754,15 +7772,21 @@ dependencies = [
 "ctor",
 "env_logger 0.11.6",
 "futures 0.3.31",
+ "git",
 "gpui",
+ "indoc",
 "itertools 0.14.0",
 "language",
 "log",
 "parking_lot",
+ "pretty_assertions",
+ "project",
 "rand 0.8.5",
+ "rope",
 "serde",
 "settings",
 "smallvec",
+ "smol",
 "sum_tree",
 "text",
 "theme",
@@ -9832,7 +9856,6 @@ dependencies = [
 "log",
 "lsp",
 "node_runtime",
- "once_cell",
 "parking_lot",
 "pathdiff",
 "paths",
@@ -10018,7 +10041,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22505a5c94da8e3b7c2996394d1c933236c4d743e81a410bcca4e6989fc066a4"
 dependencies = [
 "bytes 1.9.0",
- "heck 0.5.0",
+ "heck 0.4.1",
 "itertools 0.12.1",
 "log",
 "multimap 0.10.0",
@@ -12053,8 +12076,9 @@ dependencies = [
 "gpui",
 "parking_lot",
 "paths",
+ "schemars",
 "serde",
- "serde_json",
+ "serde_json_lenient",
 "snippet",
 "util",
 ]
@@ -12174,9 +12198,9 @@ dependencies = [

 [[package]]
 name = "sqlx"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "93334716a037193fac19df402f8571269c84a00852f6a7066b5d2616dcd64d3e"
+checksum = "4410e73b3c0d8442c5f99b425d7a435b5ee0ae4167b3196771dd3f7a01be745f"
 dependencies = [
 "sqlx-core",
 "sqlx-macros",
@@ -12187,32 +12211,27 @@ dependencies = [

 [[package]]
 name = "sqlx-core"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4d8060b456358185f7d50c55d9b5066ad956956fddec42ee2e8567134a8936e"
+checksum = "6a007b6936676aa9ab40207cde35daab0a04b823be8ae004368c0793b96a61e0"
 dependencies = [
- "atoi",
 "bigdecimal",
- "byteorder",
 "bytes 1.9.0",
 "chrono",
 "crc",
 "crossbeam-queue",
 "either",
 "event-listener 5.3.1",
- "futures-channel",
 "futures-core",
 "futures-intrusive",
 "futures-io",
 "futures-util",
- "hashbrown 0.14.5",
- "hashlink 0.9.1",
- "hex",
+ "hashbrown 0.15.2",
+ "hashlink 0.10.0",
 "indexmap",
 "log",
 "memchr",
 "once_cell",
- "paste",
 "percent-encoding",
 "rust_decimal",
 "rustls 0.23.20",
@@ -12221,8 +12240,7 @@ dependencies = [
 "serde_json",
 "sha2",
 "smallvec",
- "sqlformat",
- "thiserror 1.0.69",
+ "thiserror 2.0.6",
 "time",
 "tokio",
 "tokio-stream",
@@ -12234,9 +12252,9 @@ dependencies = [

 [[package]]
 name = "sqlx-macros"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cac0692bcc9de3b073e8d747391827297e075c7710ff6276d9f7a1f3d58c6657"
+checksum = "3112e2ad78643fef903618d78cf0aec1cb3134b019730edb039b69eaf531f310"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -12247,9 +12265,9 @@ dependencies = [

 [[package]]
 name = "sqlx-macros-core"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1804e8a7c7865599c9c79be146dc8a9fd8cc86935fa641d3ea58e5f0688abaa5"
+checksum = "4e9f90acc5ab146a99bf5061a7eb4976b573f560bc898ef3bf8435448dd5e7ad"
 dependencies = [
 "dotenvy",
 "either",
@@ -12273,9 +12291,9 @@ dependencies = [

 [[package]]
 name = "sqlx-mysql"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64bb4714269afa44aef2755150a0fc19d756fb580a67db8885608cf02f47d06a"
+checksum = "4560278f0e00ce64938540546f59f590d60beee33fffbd3b9cd47851e5fff233"
 dependencies = [
 "atoi",
 "base64 0.22.1",
@@ -12311,7 +12329,7 @@ dependencies = [
 "smallvec",
 "sqlx-core",
 "stringprep",
- "thiserror 1.0.69",
+ "thiserror 2.0.6",
 "time",
 "tracing",
 "uuid",
@@ -12320,9 +12338,9 @@ dependencies = [

 [[package]]
 name = "sqlx-postgres"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fa91a732d854c5d7726349bb4bb879bb9478993ceb764247660aee25f67c2f8"
+checksum = "c5b98a57f363ed6764d5b3a12bfedf62f07aa16e1856a7ddc2a0bb190a959613"
 dependencies = [
 "atoi",
 "base64 0.22.1",
@@ -12335,7 +12353,6 @@ dependencies = [
 "etcetera",
 "futures-channel",
 "futures-core",
- "futures-io",
 "futures-util",
 "hex",
 "hkdf",
@@ -12355,7 +12372,7 @@ dependencies = [
 "smallvec",
 "sqlx-core",
 "stringprep",
- "thiserror 1.0.69",
+ "thiserror 2.0.6",
 "time",
 "tracing",
 "uuid",
@@ -12364,9 +12381,9 @@ dependencies = [

 [[package]]
 name = "sqlx-sqlite"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d5b2cf34a45953bfd3daaf3db0f7a7878ab9b7a6b91b422d24a7a9e4c857b680"
+checksum = "f85ca71d3a5b24e64e1d08dd8fe36c6c95c339a896cc33068148906784620540"
 dependencies = [
 "atoi",
 "chrono",
@@ -13399,9 +13416,9 @@ dependencies = [

 [[package]]
 name = "tokio"
-version = "1.42.0"
+version = "1.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5cec9b21b0450273377fc97bd4c33a8acffc8c996c987a7c5b319a0083707551"
+checksum = "3d61fa4ffa3de412bfea335c6ecff681de2b609ba3c77ef3e00e521813a9ed9e"
 dependencies = [
 "backtrace",
 "bytes 1.9.0",
@@ -13428,9 +13445,9 @@ dependencies = [

 [[package]]
 name = "tokio-macros"
-version = "2.4.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
+checksum = "6e06d43f1345a3bcd39f6a56dbb7dcab2ba47e68e8ac134855e7e2bdbaf8cab8"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -14394,6 +14411,7 @@ dependencies = [
 "command_palette_hooks",
 "editor",
 "futures 0.3.31",
+ "git_ui",
 "gpui",
 "indoc",
 "itertools 0.14.0",
@@ -16711,9 +16729,11 @@ dependencies = [
 "client",
 "clock",
 "collections",
+ "command_palette_hooks",
 "ctor",
 "editor",
 "env_logger 0.11.6",
+ "feature_flags",
 "futures 0.3.31",
 "gpui",
 "http_client",
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,6 +32,7 @@ members = [
    "crates/copilot",
    "crates/db",
    "crates/diagnostics",
+    "crates/deepseek",
    "crates/docs_preprocessor",
    "crates/editor",
    "crates/evals",
@@ -229,6 +230,7 @@ context_server = { path = "crates/context_server" }
 context_server_settings = { path = "crates/context_server_settings" }
 copilot = { path = "crates/copilot" }
 db = { path = "crates/db" }
+deepseek = { path = "crates/deepseek" }
 diagnostics = { path = "crates/diagnostics" }
 editor = { path = "crates/editor" }
 extension = { path = "crates/extension" }
@@ -372,7 +374,7 @@ async-tungstenite = "0.28"
 async-watch = "0.3.1"
 async_zip = { version = "0.0.17", features = ["deflate", "deflate64"] }
 base64 = "0.22"
-bitflags = "2.8.0"
+bitflags = "2.6.0"
 blade-graphics = { git = "https://github.com/kvark/blade", rev = "091a8401033847bb9b6ace3fcf70448d069621c5" }
 blade-macros = { git = "https://github.com/kvark/blade", rev = "091a8401033847bb9b6ace3fcf70448d069621c5" }
 blade-util = { git = "https://github.com/kvark/blade", rev = "091a8401033847bb9b6ace3fcf70448d069621c5" }
@@ -421,13 +423,12 @@ libc = "0.2"
 libsqlite3-sys = { version = "0.30.1", features = ["bundled"] }
 linkify = "0.10.0"
 livekit = { git = "https://github.com/zed-industries/livekit-rust-sdks", rev="060964da10574cd9bf06463a53bf6e0769c5c45e", features = ["dispatcher", "services-dispatcher", "rustls-tls-native-roots"], default-features = false }
-log = { version = "0.4.25", features = ["kv_unstable_serde", "serde"] }
+log = { version = "0.4.16", features = ["kv_unstable_serde", "serde"] }
 markup5ever_rcdom = "0.3.0"
 nanoid = "0.4"
 nbformat = { version = "0.10.0" }
 nix = "0.29"
 num-format = "0.4.4"
-once_cell = "1.20"
 ordered-float = "2.1.1"
 palette = { version = "0.7.5", default-features = false, features = ["std"] }
 parking_lot = "0.12.1"
@@ -510,7 +511,7 @@ tree-sitter = { version = "0.23", features = ["wasm"] }
 tree-sitter-bash = "0.23"
 tree-sitter-c = "0.23"
 tree-sitter-cpp = "0.23"
-tree-sitter-css = "0.23.2"
+tree-sitter-css = "0.23"
 tree-sitter-elixir = "0.3"
 tree-sitter-embedded-template = "0.23.0"
 tree-sitter-go = "0.23"
--- a/assets/icons/ai_deep_seek.svg
+++ b/assets/icons/ai_deep_seek.svg
@@ -0,0 +1 @@
+<svg height="1em" style="flex:none;line-height:1" viewBox="0 0 24 24" width="1em" xmlns="http://www.w3.org/2000/svg"><title>DeepSeek</title><path d="M23.748 4.482c-.254-.124-.364.113-.512.234-.051.039-.094.09-.137.136-.372.397-.806.657-1.373.626-.829-.046-1.537.214-2.163.848-.133-.782-.575-1.248-1.247-1.548-.352-.156-.708-.311-.955-.65-.172-.241-.219-.51-.305-.774-.055-.16-.11-.323-.293-.35-.2-.031-.278.136-.356.276-.313.572-.434 1.202-.422 1.84.027 1.436.633 2.58 1.838 3.393.137.093.172.187.129.323-.082.28-.18.552-.266.833-.055.179-.137.217-.329.14a5.526 5.526 0 01-1.736-1.18c-.857-.828-1.631-1.742-2.597-2.458a11.365 11.365 0 00-.689-.471c-.985-.957.13-1.743.388-1.836.27-.098.093-.432-.779-.428-.872.004-1.67.295-2.687.684a3.055 3.055 0 01-.465.137 9.597 9.597 0 00-2.883-.102c-1.885.21-3.39 1.102-4.497 2.623C.082 8.606-.231 10.684.152 12.85c.403 2.284 1.569 4.175 3.36 5.653 1.858 1.533 3.997 2.284 6.438 2.14 1.482-.085 3.133-.284 4.994-1.86.47.234.962.327 1.78.397.63.059 1.236-.03 1.705-.128.735-.156.684-.837.419-.961-2.155-1.004-1.682-.595-2.113-.926 1.096-1.296 2.746-2.642 3.392-7.003.05-.347.007-.565 0-.845-.004-.17.035-.237.23-.256a4.173 4.173 0 001.545-.475c1.396-.763 1.96-2.015 2.093-3.517.02-.23-.004-.467-.247-.588zM11.581 18c-2.089-1.642-3.102-2.183-3.52-2.16-.392.024-.321.471-.235.763.09.288.207.486.371.739.114.167.192.416-.113.603-.673.416-1.842-.14-1.897-.167-1.361-.802-2.5-1.86-3.301-3.307-.774-1.393-1.224-2.887-1.298-4.482-.02-.386.093-.522.477-.592a4.696 4.696 0 011.529-.039c2.132.312 3.946 1.265 5.468 2.774.868.86 1.525 1.887 2.202 2.891.72 1.066 1.494 2.082 2.48 2.914.348.292.625.514.891.677-.802.09-2.14.11-3.054-.614zm1-6.44a.306.306 0 01.415-.287.302.302 0 01.2.288.306.306 0 01-.31.307.303.303 0 01-.304-.308zm3.11 1.596c-.2.081-.399.151-.59.16a1.245 1.245 0 01-.798-.254c-.274-.23-.47-.358-.552-.758a1.73 1.73 0 01.016-.588c.07-.327-.008-.537-.239-.727-.187-.156-.426-.199-.688-.199a.559.559 0 01-.254-.078c-.11-.054-.2-.19-.114-.358.028-.054.16-.186.192-.21.356-.202.767-.136 1.146.016.352.144.618.408 1.001.782.391.451.462.576.685.914.176.265.336.537.445.848.067.195-.019.354-.25.452z" fill="black"></path></svg>
--- a/assets/icons/file.svg
+++ b/assets/icons/file.svg
@@ -1,8 +1,4 @@
-<svg width="15" height="15" viewBox="0 0 15 15" fill="none" xmlns="http://www.w3.org/2000/svg">
-  <path
-    fill-rule="evenodd"
-    clip-rule="evenodd"
-    d="M3.5 2C3.22386 2 3 2.22386 3 2.5V12.5C3 12.7761 3.22386 13 3.5 13H11.5C11.7761 13 12 12.7761 12 12.5V6H8.5C8.22386 6 8 5.77614 8 5.5V2H3.5ZM9 2.70711L11.2929 5H9V2.70711ZM2 2.5C2 1.67157 2.67157 1 3.5 1H8.5C8.63261 1 8.75979 1.05268 8.85355 1.14645L12.8536 5.14645C12.9473 5.24021 13 5.36739 13 5.5V12.5C13 13.3284 12.3284 14 11.5 14H3.5C2.67157 14 2 13.3284 2 12.5V2.5Z"
-    fill="currentColor"
-  />
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M10.0001 1.33334H4.00008C3.64646 1.33334 3.30732 1.47382 3.05727 1.72387C2.80722 1.97392 2.66675 2.31305 2.66675 2.66668V13.3333C2.66675 13.687 2.80722 14.0261 3.05727 14.2762C3.30732 14.5262 3.64646 14.6667 4.00008 14.6667H12.0001C12.3537 14.6667 12.6928 14.5262 12.9429 14.2762C13.1929 14.0261 13.3334 13.687 13.3334 13.3333V4.66668L10.0001 1.33334Z" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M9.33325 1.33334V4.00001C9.33325 4.35363 9.47373 4.69277 9.72378 4.94282C9.97383 5.19287 10.313 5.33334 10.6666 5.33334H13.3333" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
 </svg>
--- a/assets/icons/folder.svg
+++ b/assets/icons/folder.svg
@@ -1,3 +1,3 @@
 <svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M8.26046 3.97337C8.3527 4.17617 8.4795 4.47151 8.57375 4.69341C8.65258 4.87898 8.83437 4.99999 9.03599 4.99999H12.5C12.7761 4.99999 13 5.22385 13 5.49999V12.125C13 12.4011 12.7761 12.625 12.5 12.625H3.5C3.22386 12.625 3 12.4011 3 12.125V3.86932C3 3.59318 3.22386 3.36932 3.5 3.36932H7.34219C7.74141 3.36932 8.09483 3.60924 8.26046 3.97337Z" stroke="black" stroke-width="1.5" stroke-linecap="round"/>
+<path d="M13.3333 13.3333C13.6869 13.3333 14.026 13.1929 14.2761 12.9428C14.5261 12.6928 14.6666 12.3536 14.6666 12V5.33333C14.6666 4.97971 14.5261 4.64057 14.2761 4.39052C14.026 4.14048 13.6869 4 13.3333 4H8.06659C7.84359 4.00219 7.62362 3.94841 7.42679 3.84359C7.22996 3.73877 7.06256 3.58625 6.93992 3.4L6.39992 2.6C6.27851 2.41565 6.11324 2.26432 5.91892 2.1596C5.7246 2.05488 5.50732 2.00004 5.28659 2H2.66659C2.31296 2 1.97382 2.14048 1.72378 2.39052C1.47373 2.64057 1.33325 2.97971 1.33325 3.33333V12C1.33325 12.3536 1.47373 12.6928 1.72378 12.9428C1.97382 13.1929 2.31296 13.3333 2.66659 13.3333H13.3333Z" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
 </svg>
--- a/assets/icons/globe.svg
+++ b/assets/icons/globe.svg
@@ -1 +1,12 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-globe"><circle cx="12" cy="12" r="10"/><path d="M12 2a14.5 14.5 0 0 0 0 20 14.5 14.5 0 0 0 0-20"/><path d="M2 12h20"/></svg>
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_2226_61)">
+<path d="M7.99992 14.6667C11.6818 14.6667 14.6666 11.6819 14.6666 8C14.6666 4.3181 11.6818 1.33333 7.99992 1.33333C4.31802 1.33333 1.33325 4.3181 1.33325 8C1.33325 11.6819 4.31802 14.6667 7.99992 14.6667Z" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M7.99992 1.33333C6.28807 3.13076 5.33325 5.51782 5.33325 8C5.33325 10.4822 6.28807 12.8692 7.99992 14.6667C9.71176 12.8692 10.6666 10.4822 10.6666 8C10.6666 5.51782 9.71176 3.13076 7.99992 1.33333Z" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M1.33325 8H14.6666" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+</g>
+<defs>
+<clipPath id="clip0_2226_61">
+<rect width="16" height="16" fill="white"/>
+</clipPath>
+</defs>
+</svg>
--- a/assets/icons/message_bubbles.svg
+++ b/assets/icons/message_bubbles.svg
@@ -1,4 +1,6 @@
-<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M5.46115 8.43419C7.30678 8.43419 8.92229 7.43411 8.92229 5.21171C8.92229 2.98933 7.30678 1.98926 5.46115 1.98926C3.61553 1.98926 2 2.98933 2 5.21171C2 6.028 2.21794 6.67935 2.58519 7.17685C2.7184 7.35732 2.69033 7.77795 2.58387 7.97539C2.32908 8.44793 2.81048 8.9657 3.33372 8.84571C3.72539 8.75597 4.13621 8.63447 4.49574 8.4715C4.62736 8.41181 4.7727 8.38777 4.91631 8.40402C5.09471 8.42416 5.27678 8.43419 5.46115 8.43419Z" fill="black" stroke="black" stroke-linecap="round" stroke-linejoin="round"/>
-<path d="M11.3385 6.24835C11.7049 6.74561 11.9224 7.39641 11.9224 8.2117C11.9224 9.02799 11.7044 9.67934 11.3372 10.1768C11.204 10.3573 11.232 10.7779 11.3385 10.9754C11.5933 11.4479 11.1119 11.9657 10.5886 11.8457C10.197 11.756 9.78615 11.6345 9.42662 11.4715C9.295 11.4118 9.14966 11.3878 9.00605 11.404C8.82765 11.4242 8.64558 11.4342 8.46121 11.4342C7.61469 11.4342 6.81658 11.2238 6.20055 10.7816" stroke="black" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M5.26659 13.3333C6.53897 13.986 8.00264 14.1628 9.39384 13.8319C10.785 13.5009 12.0123 12.6839 12.8544 11.5281C13.6966 10.3724 14.0982 8.95381 13.987 7.52811C13.8758 6.10241 13.259 4.76332 12.2478 3.75213C11.2366 2.74095 9.89751 2.12417 8.47181 2.01295C7.04611 1.90173 5.62757 2.30337 4.4718 3.1455C3.31603 3.98764 2.49905 5.21488 2.16807 6.60608C1.83709 7.99728 2.01388 9.46095 2.66659 10.7333L1.33325 14.6667L5.26659 13.3333Z" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M5.33325 8H5.33992" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M8 8H8.00667" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M10.6667 8H10.6734" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
 </svg>
--- a/assets/keymaps/default-linux.json
+++ b/assets/keymaps/default-linux.json
@@ -117,12 +117,13 @@
      "ctrl-alt-space": "editor::ShowCharacterPalette",
      "ctrl-;": "editor::ToggleLineNumbers",
      "ctrl-k ctrl-r": "editor::RevertSelectedHunks",
-      "ctrl-'": "editor::ToggleHunkDiff",
+      "ctrl-'": "editor::ToggleSelectedDiffHunks",
      "ctrl-\"": "editor::ExpandAllHunkDiffs",
      "ctrl-i": "editor::ShowSignatureHelp",
      "alt-g b": "editor::ToggleGitBlame",
      "menu": "editor::OpenContextMenu",
-      "shift-f10": "editor::OpenContextMenu"
+      "shift-f10": "editor::OpenContextMenu",
+      "alt-enter": "editor::OpenSelectionsInMultibuffer"
    }
  },
  {
@@ -425,6 +426,7 @@
      "ctrl-shift-m": "diagnostics::Deploy",
      "ctrl-shift-e": "project_panel::ToggleFocus",
      "ctrl-shift-b": "outline_panel::ToggleFocus",
+      "ctrl-shift-g": "git_panel::ToggleFocus",
      "ctrl-?": "assistant::ToggleFocus",
      "alt-save": "workspace::SaveAll",
      "ctrl-alt-s": "workspace::SaveAll",
@@ -543,7 +545,7 @@
    "bindings": {
      "alt-enter": "editor::OpenExcerpts",
      "shift-enter": "editor::ExpandExcerpts",
-      "ctrl-k enter": "editor::OpenExcerptsSplit",
+      "ctrl-alt-enter": "editor::OpenExcerptsSplit",
      "ctrl-shift-e": "pane::RevealInProjectPanel",
      "ctrl-f8": "editor::GoToHunk",
      "ctrl-shift-f8": "editor::GoToPrevHunk",
@@ -645,7 +647,7 @@
      "shift-down": "menu::SelectNext",
      "shift-up": "menu::SelectPrev",
      "alt-enter": "editor::OpenExcerpts",
-      "ctrl-k enter": "editor::OpenExcerptsSplit"
+      "ctrl-alt-enter": "editor::OpenExcerptsSplit"
    }
  },
  {
@@ -691,6 +693,34 @@
      "space": "project_panel::Open"
    }
  },
+  {
+    "context": "GitPanel && !CommitEditor",
+    "use_key_equivalents": true,
+    "bindings": {
+      "escape": "git_panel::Close"
+    }
+  },
+  {
+    "context": "GitPanel && ChangesList",
+    "use_key_equivalents": true,
+    "bindings": {
+      "up": "menu::SelectPrev",
+      "down": "menu::SelectNext",
+      "enter": "menu::Confirm",
+      "space": "git::ToggleStaged",
+      "ctrl-space": "git::StageAll",
+      "ctrl-shift-space": "git::UnstageAll"
+    }
+  },
+  {
+    "context": "GitPanel && CommitEditor > Editor",
+    "use_key_equivalents": true,
+    "bindings": {
+      "escape": "git_panel::FocusChanges",
+      "ctrl-enter": "git::CommitChanges",
+      "ctrl-shift-enter": "git::CommitAllChanges"
+    }
+  },
  {
    "context": "CollabPanel && not_editing",
    "bindings": {
--- a/assets/keymaps/default-macos.json
+++ b/assets/keymaps/default-macos.json
@@ -127,12 +127,13 @@
      "ctrl-cmd-space": "editor::ShowCharacterPalette",
      "cmd-;": "editor::ToggleLineNumbers",
      "cmd-alt-z": "editor::RevertSelectedHunks",
-      "cmd-'": "editor::ToggleHunkDiff",
+      "cmd-'": "editor::ToggleSelectedDiffHunks",
      "cmd-\"": "editor::ExpandAllHunkDiffs",
      "cmd-alt-g b": "editor::ToggleGitBlame",
      "cmd-i": "editor::ShowSignatureHelp",
      "ctrl-f12": "editor::GoToDeclaration",
-      "alt-ctrl-f12": "editor::GoToDeclarationSplit"
+      "alt-ctrl-f12": "editor::GoToDeclarationSplit",
+      "alt-enter": "editor::OpenSelectionsInMultibuffer"
    }
  },
  {
@@ -503,6 +504,7 @@
      "cmd-shift-m": "diagnostics::Deploy",
      "cmd-shift-e": "project_panel::ToggleFocus",
      "cmd-shift-b": "outline_panel::ToggleFocus",
+      "ctrl-shift-g": "git_panel::ToggleFocus",
      "cmd-?": "assistant::ToggleFocus",
      "cmd-alt-s": "workspace::SaveAll",
      "cmd-k m": "language_selector::Toggle",
@@ -620,7 +622,7 @@
    "bindings": {
      "alt-enter": "editor::OpenExcerpts",
      "shift-enter": "editor::ExpandExcerpts",
-      "cmd-k enter": "editor::OpenExcerptsSplit",
+      "cmd-alt-enter": "editor::OpenExcerptsSplit",
      "cmd-shift-e": "pane::RevealInProjectPanel",
      "cmd-f8": "editor::GoToHunk",
      "cmd-shift-f8": "editor::GoToPrevHunk",
@@ -667,7 +669,7 @@
      "shift-down": "menu::SelectNext",
      "shift-up": "menu::SelectPrev",
      "alt-enter": "editor::OpenExcerpts",
-      "cmd-k enter": "editor::OpenExcerptsSplit"
+      "cmd-alt-enter": "editor::OpenExcerptsSplit"
    }
  },
  {
--- a/assets/keymaps/vim.json
+++ b/assets/keymaps/vim.json
@@ -86,6 +86,7 @@
      "ctrl-[": ["vim::SwitchMode", "Normal"],
      "v": "vim::ToggleVisual",
      "shift-v": "vim::ToggleVisualLine",
+      "ctrl-g": "vim::ShowLocation",
      "ctrl-v": "vim::ToggleVisualBlock",
      "ctrl-q": "vim::ToggleVisualBlock",
      "shift-k": "editor::Hover",
@@ -407,6 +408,7 @@
      "(": "vim::Parentheses",
      ")": "vim::Parentheses",
      "b": "vim::Parentheses",
+      // "b": "vim::AnyBrackets",
      "[": "vim::SquareBrackets",
      "]": "vim::SquareBrackets",
      "r": "vim::SquareBrackets",
@@ -435,7 +437,7 @@
    "bindings": {
      "d": "vim::CurrentLine",
      "s": ["vim::PushOperator", "DeleteSurrounds"],
-      "o": "editor::ToggleHunkDiff", // "d o"
+      "o": "editor::ToggleSelectedDiffHunks", // "d o"
      "p": "editor::RevertSelectedHunks" // "d p"
    }
  },
@@ -667,5 +669,20 @@
      "shift-g": "menu::SelectLast",
      "g g": "menu::SelectFirst"
    }
+  },
+  {
+    "context": "GitPanel && ChangesList",
+    "use_key_equivalents": true,
+    "bindings": {
+      "k": "menu::SelectPrev",
+      "j": "menu::SelectNext",
+      "g g": "menu::SelectFirst",
+      "shift-g": "menu::SelectLast",
+      "g f": "menu::Confirm",
+      "i": "git_panel::FocusEditor",
+      "x": "git::ToggleStaged",
+      "shift-x": "git::StageAll",
+      "shift-u": "git::UnstageAll"
+    }
  }
 ]
--- a/assets/settings/default.json
+++ b/assets/settings/default.json
@@ -592,7 +592,9 @@
    // Whether or not to show the tab bar in the editor
    "show": true,
    // Whether or not to show the navigation history buttons.
-    "show_nav_history_buttons": true
+    "show_nav_history_buttons": true,
+    /// Whether or not to show the tab bar buttons.
+    "show_tab_bar_buttons": true
  },
  // Settings related to the editor's tabs
  "tabs": {
@@ -1166,6 +1168,9 @@
    },
    "lmstudio": {
      "api_url": "http://localhost:1234/api/v0"
+    },
+    "deepseek": {
+      "api_url": "https://api.deepseek.com"
    }
  },
  // Zed's Prettier integration settings.
--- a/crates/activity_indicator/src/activity_indicator.rs
+++ b/crates/activity_indicator/src/activity_indicator.rs
@@ -3,9 +3,9 @@ use editor::Editor;
 use extension_host::ExtensionStore;
 use futures::StreamExt;
 use gpui::{
-    actions, percentage, Animation, AnimationExt as _, AppContext, CursorStyle, EventEmitter,
-    InteractiveElement as _, Model, ParentElement as _, Render, SharedString,
-    StatefulInteractiveElement, Styled, Transformation, View, ViewContext, VisualContext as _,
+    actions, percentage, Animation, AnimationExt as _, App, Context, CursorStyle, Entity,
+    EventEmitter, InteractiveElement as _, ParentElement as _, Render, SharedString,
+    StatefulInteractiveElement, Styled, Transformation, Window,
 };
 use language::{LanguageRegistry, LanguageServerBinaryStatus, LanguageServerId};
 use lsp::LanguageServerName;
@@ -27,8 +27,8 @@ pub enum Event {

 pub struct ActivityIndicator {
    statuses: Vec<LspStatus>,
-    project: Model<Project>,
-    auto_updater: Option<Model<AutoUpdater>>,
+    project: Entity<Project>,
+    auto_updater: Option<Entity<AutoUpdater>>,
    context_menu_handle: PopoverMenuHandle<ContextMenu>,
 }

@@ -46,22 +46,24 @@ struct PendingWork<'a> {
 struct Content {
    icon: Option<gpui::AnyElement>,
    message: String,
-    on_click: Option<Arc<dyn Fn(&mut ActivityIndicator, &mut ViewContext<ActivityIndicator>)>>,
+    on_click:
+        Option<Arc<dyn Fn(&mut ActivityIndicator, &mut Window, &mut Context<ActivityIndicator>)>>,
 }

 impl ActivityIndicator {
    pub fn new(
        workspace: &mut Workspace,
        languages: Arc<LanguageRegistry>,
-        cx: &mut ViewContext<Workspace>,
-    ) -> View<ActivityIndicator> {
+        window: &mut Window,
+        cx: &mut Context<Workspace>,
+    ) -> Entity<ActivityIndicator> {
        let project = workspace.project().clone();
        let auto_updater = AutoUpdater::get(cx);
-        let this = cx.new_view(|cx: &mut ViewContext<Self>| {
+        let this = cx.new(|cx| {
            let mut status_events = languages.language_server_binary_statuses();
            cx.spawn(|this, mut cx| async move {
                while let Some((name, status)) = status_events.next().await {
-                    this.update(&mut cx, |this, cx| {
+                    this.update(&mut cx, |this: &mut ActivityIndicator, cx| {
                        this.statuses.retain(|s| s.name != name);
                        this.statuses.push(LspStatus { name, status });
                        cx.notify();
@@ -70,6 +72,7 @@ impl ActivityIndicator {
                anyhow::Ok(())
            })
            .detach();
+
            cx.observe(&project, |_, _, cx| cx.notify()).detach();

            if let Some(auto_updater) = auto_updater.as_ref() {
@@ -84,13 +87,13 @@ impl ActivityIndicator {
            }
        });

-        cx.subscribe(&this, move |_, _, event, cx| match event {
+        cx.subscribe_in(&this, window, move |_, _, event, window, cx| match event {
            Event::ShowError { lsp_name, error } => {
                let create_buffer = project.update(cx, |project, cx| project.create_buffer(cx));
                let project = project.clone();
                let error = error.clone();
                let lsp_name = lsp_name.clone();
-                cx.spawn(|workspace, mut cx| async move {
+                cx.spawn_in(window, |workspace, mut cx| async move {
                    let buffer = create_buffer.await?;
                    buffer.update(&mut cx, |buffer, cx| {
                        buffer.edit(
@@ -103,13 +106,14 @@ impl ActivityIndicator {
                        );
                        buffer.set_capability(language::Capability::ReadOnly, cx);
                    })?;
-                    workspace.update(&mut cx, |workspace, cx| {
+                    workspace.update_in(&mut cx, |workspace, window, cx| {
                        workspace.add_item_to_active_pane(
-                            Box::new(cx.new_view(|cx| {
-                                Editor::for_buffer(buffer, Some(project.clone()), cx)
+                            Box::new(cx.new(|cx| {
+                                Editor::for_buffer(buffer, Some(project.clone()), window, cx)
                            })),
                            None,
                            true,
+                            window,
                            cx,
                        );
                    })?;
@@ -123,7 +127,7 @@ impl ActivityIndicator {
        this
    }

-    fn show_error_message(&mut self, _: &ShowErrorMessage, cx: &mut ViewContext<Self>) {
+    fn show_error_message(&mut self, _: &ShowErrorMessage, _: &mut Window, cx: &mut Context<Self>) {
        self.statuses.retain(|status| {
            if let LanguageServerBinaryStatus::Failed { error } = &status.status {
                cx.emit(Event::ShowError {
@@ -139,7 +143,12 @@ impl ActivityIndicator {
        cx.notify();
    }

-    fn dismiss_error_message(&mut self, _: &DismissErrorMessage, cx: &mut ViewContext<Self>) {
+    fn dismiss_error_message(
+        &mut self,
+        _: &DismissErrorMessage,
+        _: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        if let Some(updater) = &self.auto_updater {
            updater.update(cx, |updater, cx| {
                updater.dismiss_error(cx);
@@ -150,7 +159,7 @@ impl ActivityIndicator {

    fn pending_language_server_work<'a>(
        &self,
-        cx: &'a AppContext,
+        cx: &'a App,
    ) -> impl Iterator<Item = PendingWork<'a>> {
        self.project
            .read(cx)
@@ -178,12 +187,12 @@ impl ActivityIndicator {

    fn pending_environment_errors<'a>(
        &'a self,
-        cx: &'a AppContext,
+        cx: &'a App,
    ) -> impl Iterator<Item = (&'a WorktreeId, &'a EnvironmentErrorMessage)> {
        self.project.read(cx).shell_environment_errors(cx)
    }

-    fn content_to_render(&mut self, cx: &mut ViewContext<Self>) -> Option<Content> {
+    fn content_to_render(&mut self, cx: &mut Context<Self>) -> Option<Content> {
        // Show if any direnv calls failed
        if let Some((&worktree_id, error)) = self.pending_environment_errors(cx).next() {
            return Some(Content {
@@ -193,11 +202,11 @@ impl ActivityIndicator {
                        .into_any_element(),
                ),
                message: error.0.clone(),
-                on_click: Some(Arc::new(move |this, cx| {
+                on_click: Some(Arc::new(move |this, window, cx| {
                    this.project.update(cx, |project, cx| {
                        project.remove_environment_error(cx, worktree_id);
                    });
-                    cx.dispatch_action(Box::new(workspace::OpenLog));
+                    window.dispatch_action(Box::new(workspace::OpenLog), cx);
                })),
            });
        }
@@ -280,10 +289,10 @@ impl ActivityIndicator {
                        }
                    )
                ),
-                on_click: Some(Arc::new(move |this, cx| {
+                on_click: Some(Arc::new(move |this, window, cx| {
                    this.statuses
                        .retain(|status| !downloading.contains(&status.name));
-                    this.dismiss_error_message(&DismissErrorMessage, cx)
+                    this.dismiss_error_message(&DismissErrorMessage, window, cx)
                })),
            });
        }
@@ -308,10 +317,10 @@ impl ActivityIndicator {
                        }
                    ),
                ),
-                on_click: Some(Arc::new(move |this, cx| {
+                on_click: Some(Arc::new(move |this, window, cx| {
                    this.statuses
                        .retain(|status| !checking_for_update.contains(&status.name));
-                    this.dismiss_error_message(&DismissErrorMessage, cx)
+                    this.dismiss_error_message(&DismissErrorMessage, window, cx)
                })),
            });
        }
@@ -336,8 +345,8 @@ impl ActivityIndicator {
                            acc
                        }),
                ),
-                on_click: Some(Arc::new(|this, cx| {
-                    this.show_error_message(&Default::default(), cx)
+                on_click: Some(Arc::new(|this, window, cx| {
+                    this.show_error_message(&Default::default(), window, cx)
                })),
            });
        }
@@ -351,11 +360,11 @@ impl ActivityIndicator {
                        .into_any_element(),
                ),
                message: format!("Formatting failed: {}. Click to see logs.", failure),
-                on_click: Some(Arc::new(|indicator, cx| {
+                on_click: Some(Arc::new(|indicator, window, cx| {
                    indicator.project.update(cx, |project, cx| {
                        project.reset_last_formatting_failure(cx);
                    });
-                    cx.dispatch_action(Box::new(workspace::OpenLog));
+                    window.dispatch_action(Box::new(workspace::OpenLog), cx);
                })),
            });
        }
@@ -370,8 +379,8 @@ impl ActivityIndicator {
                            .into_any_element(),
                    ),
                    message: "Checking for Zed updates…".to_string(),
-                    on_click: Some(Arc::new(|this, cx| {
-                        this.dismiss_error_message(&DismissErrorMessage, cx)
+                    on_click: Some(Arc::new(|this, window, cx| {
+                        this.dismiss_error_message(&DismissErrorMessage, window, cx)
                    })),
                }),
                AutoUpdateStatus::Downloading => Some(Content {
@@ -381,8 +390,8 @@ impl ActivityIndicator {
                            .into_any_element(),
                    ),
                    message: "Downloading Zed update…".to_string(),
-                    on_click: Some(Arc::new(|this, cx| {
-                        this.dismiss_error_message(&DismissErrorMessage, cx)
+                    on_click: Some(Arc::new(|this, window, cx| {
+                        this.dismiss_error_message(&DismissErrorMessage, window, cx)
                    })),
                }),
                AutoUpdateStatus::Installing => Some(Content {
@@ -392,8 +401,8 @@ impl ActivityIndicator {
                            .into_any_element(),
                    ),
                    message: "Installing Zed update…".to_string(),
-                    on_click: Some(Arc::new(|this, cx| {
-                        this.dismiss_error_message(&DismissErrorMessage, cx)
+                    on_click: Some(Arc::new(|this, window, cx| {
+                        this.dismiss_error_message(&DismissErrorMessage, window, cx)
                    })),
                }),
                AutoUpdateStatus::Updated { binary_path } => Some(Content {
@@ -403,7 +412,7 @@ impl ActivityIndicator {
                        let reload = workspace::Reload {
                            binary_path: Some(binary_path.clone()),
                        };
-                        move |_, cx| workspace::reload(&reload, cx)
+                        move |_, _, cx| workspace::reload(&reload, cx)
                    })),
                }),
                AutoUpdateStatus::Errored => Some(Content {
@@ -413,8 +422,8 @@ impl ActivityIndicator {
                            .into_any_element(),
                    ),
                    message: "Auto update failed".to_string(),
-                    on_click: Some(Arc::new(|this, cx| {
-                        this.dismiss_error_message(&DismissErrorMessage, cx)
+                    on_click: Some(Arc::new(|this, window, cx| {
+                        this.dismiss_error_message(&DismissErrorMessage, window, cx)
                    })),
                }),
                AutoUpdateStatus::Idle => None,
@@ -432,8 +441,8 @@ impl ActivityIndicator {
                            .into_any_element(),
                    ),
                    message: format!("Updating {extension_id} extension…"),
-                    on_click: Some(Arc::new(|this, cx| {
-                        this.dismiss_error_message(&DismissErrorMessage, cx)
+                    on_click: Some(Arc::new(|this, window, cx| {
+                        this.dismiss_error_message(&DismissErrorMessage, window, cx)
                    })),
                });
            }
@@ -442,8 +451,12 @@ impl ActivityIndicator {
        None
    }

-    fn toggle_language_server_work_context_menu(&mut self, cx: &mut ViewContext<Self>) {
-        self.context_menu_handle.toggle(cx);
+    fn toggle_language_server_work_context_menu(
+        &mut self,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.context_menu_handle.toggle(window, cx);
    }
 }

@@ -452,7 +465,7 @@ impl EventEmitter<Event> for ActivityIndicator {}
 const MAX_MESSAGE_LEN: usize = 50;

 impl Render for ActivityIndicator {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let result = h_flex()
            .id("activity-indicator")
            .on_action(cx.listener(Self::show_error_message))
@@ -460,7 +473,7 @@ impl Render for ActivityIndicator {
        let Some(content) = self.content_to_render(cx) else {
            return result;
        };
-        let this = cx.view().downgrade();
+        let this = cx.entity().downgrade();
        let truncate_content = content.message.len() > MAX_MESSAGE_LEN;
        result.gap_2().child(
            PopoverMenu::new("activity-indicator-popover")
@@ -480,24 +493,24 @@ impl Render for ActivityIndicator {
                                            ))
                                            .size(LabelSize::Small),
                                        )
-                                        .tooltip(move |cx| Tooltip::text(&content.message, cx))
+                                        .tooltip(Tooltip::text(content.message))
                                } else {
                                    button.child(Label::new(content.message).size(LabelSize::Small))
                                }
                            })
                            .when_some(content.on_click, |this, handler| {
-                                this.on_click(cx.listener(move |this, _, cx| {
-                                    handler(this, cx);
+                                this.on_click(cx.listener(move |this, _, window, cx| {
+                                    handler(this, window, cx);
                                }))
                                .cursor(CursorStyle::PointingHand)
                            }),
                    ),
                )
                .anchor(gpui::Corner::BottomLeft)
-                .menu(move |cx| {
+                .menu(move |window, cx| {
                    let strong_this = this.upgrade()?;
                    let mut has_work = false;
-                    let menu = ContextMenu::build(cx, |mut menu, cx| {
+                    let menu = ContextMenu::build(window, cx, |mut menu, _, cx| {
                        for work in strong_this.read(cx).pending_language_server_work(cx) {
                            has_work = true;
                            let this = this.clone();
@@ -513,7 +526,7 @@ impl Render for ActivityIndicator {
                                let token = work.progress_token.to_string();
                                let title = SharedString::from(title);
                                menu = menu.custom_entry(
-                                    move |_| {
+                                    move |_, _| {
                                        h_flex()
                                            .w_full()
                                            .justify_between()
@@ -521,7 +534,7 @@ impl Render for ActivityIndicator {
                                            .child(Icon::new(IconName::XCircle))
                                            .into_any_element()
                                    },
-                                    move |cx| {
+                                    move |_, cx| {
                                        this.update(cx, |this, cx| {
                                            this.project.update(cx, |project, cx| {
                                                project.cancel_language_server_work(
@@ -554,5 +567,11 @@ impl Render for ActivityIndicator {
 }

 impl StatusItemView for ActivityIndicator {
-    fn set_active_pane_item(&mut self, _: Option<&dyn ItemHandle>, _: &mut ViewContext<Self>) {}
+    fn set_active_pane_item(
+        &mut self,
+        _: Option<&dyn ItemHandle>,
+        _window: &mut Window,
+        _: &mut Context<Self>,
+    ) {
+    }
 }
--- a/crates/anthropic/src/anthropic.rs
+++ b/crates/anthropic/src/anthropic.rs
@@ -2,7 +2,7 @@ mod supported_countries;

 use std::{pin::Pin, str::FromStr};

-use anyhow::{anyhow, Context, Result};
+use anyhow::{anyhow, Context as _, Result};
 use chrono::{DateTime, Utc};
 use futures::{io::BufReader, stream::BoxStream, AsyncBufReadExt, AsyncReadExt, Stream, StreamExt};
 use http_client::http::{HeaderMap, HeaderValue};
@@ -148,8 +148,13 @@ impl Model {
        }
    }

+    pub const DEFAULT_BETA_HEADERS: &[&str] = &["prompt-caching-2024-07-31"];
+
    pub fn beta_headers(&self) -> String {
-        let mut headers = vec!["prompt-caching-2024-07-31".to_string()];
+        let mut headers = Self::DEFAULT_BETA_HEADERS
+            .into_iter()
+            .map(|header| header.to_string())
+            .collect::<Vec<_>>();

        if let Self::Custom {
            extra_beta_headers, ..
@@ -186,12 +191,14 @@ pub async fn complete(
    request: Request,
 ) -> Result<Response, AnthropicError> {
    let uri = format!("{api_url}/v1/messages");
-    let model = Model::from_id(&request.model)?;
+    let beta_headers = Model::from_id(&request.model)
+        .map(|model| model.beta_headers())
+        .unwrap_or_else(|_err| Model::DEFAULT_BETA_HEADERS.join(","));
    let request_builder = HttpRequest::builder()
        .method(Method::POST)
        .uri(uri)
        .header("Anthropic-Version", "2023-06-01")
-        .header("Anthropic-Beta", model.beta_headers())
+        .header("Anthropic-Beta", beta_headers)
        .header("X-Api-Key", api_key)
        .header("Content-Type", "application/json");

@@ -302,12 +309,14 @@ pub async fn stream_completion_with_rate_limit_info(
        stream: true,
    };
    let uri = format!("{api_url}/v1/messages");
-    let model = Model::from_id(&request.base.model)?;
+    let beta_headers = Model::from_id(&request.base.model)
+        .map(|model| model.beta_headers())
+        .unwrap_or_else(|_err| Model::DEFAULT_BETA_HEADERS.join(","));
    let request_builder = HttpRequest::builder()
        .method(Method::POST)
        .uri(uri)
        .header("Anthropic-Version", "2023-06-01")
-        .header("Anthropic-Beta", model.beta_headers())
+        .header("Anthropic-Beta", beta_headers)
        .header("X-Api-Key", api_key)
        .header("Content-Type", "application/json");
    let serialized_request =
--- a/crates/assets/src/assets.rs
+++ b/crates/assets/src/assets.rs
@@ -1,7 +1,7 @@
 // This crate was essentially pulled out verbatim from main `zed` crate to avoid having to run RustEmbed macro whenever zed has to be rebuilt. It saves a second or two on an incremental build.
 use anyhow::anyhow;

-use gpui::{AppContext, AssetSource, Result, SharedString};
+use gpui::{App, AssetSource, Result, SharedString};
 use rust_embed::RustEmbed;

 #[derive(RustEmbed)]
@@ -39,7 +39,7 @@ impl AssetSource for Assets {

 impl Assets {
    /// Populate the [`TextSystem`] of the given [`AppContext`] with all `.ttf` fonts in the `fonts` directory.
-    pub fn load_fonts(&self, cx: &AppContext) -> gpui::Result<()> {
+    pub fn load_fonts(&self, cx: &App) -> gpui::Result<()> {
        let font_paths = self.list("fonts")?;
        let mut embedded_fonts = Vec::new();
        for font_path in font_paths {
@@ -55,7 +55,7 @@ impl Assets {
        cx.text_system().add_fonts(embedded_fonts)
    }

-    pub fn load_test_fonts(&self, cx: &AppContext) {
+    pub fn load_test_fonts(&self, cx: &App) {
        cx.text_system()
            .add_fonts(vec![self
                .load("fonts/plex-mono/ZedPlexMono-Regular.ttf")
--- a/crates/assistant/src/assistant.rs
+++ b/crates/assistant/src/assistant.rs
@@ -15,7 +15,7 @@ use client::Client;
 use command_palette_hooks::CommandPaletteFilter;
 use feature_flags::FeatureFlagAppExt;
 use fs::Fs;
-use gpui::{actions, AppContext, Global, UpdateGlobal};
+use gpui::{actions, App, Global, UpdateGlobal};
 use language_model::{
    LanguageModelId, LanguageModelProviderId, LanguageModelRegistry, LanguageModelResponseMessage,
 };
@@ -67,7 +67,7 @@ impl Global for Assistant {}
 impl Assistant {
    const NAMESPACE: &'static str = "assistant";

-    fn set_enabled(&mut self, enabled: bool, cx: &mut AppContext) {
+    fn set_enabled(&mut self, enabled: bool, cx: &mut App) {
        if self.enabled == enabled {
            return;
        }
@@ -92,7 +92,7 @@ pub fn init(
    fs: Arc<dyn Fs>,
    client: Arc<Client>,
    prompt_builder: Arc<PromptBuilder>,
-    cx: &mut AppContext,
+    cx: &mut App,
 ) {
    cx.set_global(Assistant::default());
    AssistantSettings::register(cx);
@@ -165,7 +165,7 @@ pub fn init(
    .detach();
 }

-fn init_language_model_settings(cx: &mut AppContext) {
+fn init_language_model_settings(cx: &mut App) {
    update_active_language_model_from_settings(cx);

    cx.observe_global::<SettingsStore>(update_active_language_model_from_settings)
@@ -184,7 +184,7 @@ fn init_language_model_settings(cx: &mut AppContext) {
    .detach();
 }

-fn update_active_language_model_from_settings(cx: &mut AppContext) {
+fn update_active_language_model_from_settings(cx: &mut App) {
    let settings = AssistantSettings::get_global(cx);
    let provider_name = LanguageModelProviderId::from(settings.default_model.provider.clone());
    let model_id = LanguageModelId::from(settings.default_model.model.clone());
@@ -204,7 +204,7 @@ fn update_active_language_model_from_settings(cx: &mut AppContext) {
    });
 }

-fn register_slash_commands(prompt_builder: Option<Arc<PromptBuilder>>, cx: &mut AppContext) {
+fn register_slash_commands(prompt_builder: Option<Arc<PromptBuilder>>, cx: &mut App) {
    let slash_command_registry = SlashCommandRegistry::global(cx);

    slash_command_registry.register_command(assistant_slash_commands::FileSlashCommand, true);
@@ -278,7 +278,7 @@ fn register_slash_commands(prompt_builder: Option<Arc<PromptBuilder>>, cx: &mut
    .detach();
 }

-fn update_slash_commands_from_settings(cx: &mut AppContext) {
+fn update_slash_commands_from_settings(cx: &mut App) {
    let slash_command_registry = SlashCommandRegistry::global(cx);
    let settings = SlashCommandSettings::get_global(cx);

--- a/crates/assistant/src/assistant_configuration.rs
+++ b/crates/assistant/src/assistant_configuration.rs
@@ -1,7 +1,7 @@
 use std::sync::Arc;

 use collections::HashMap;
-use gpui::{canvas, AnyView, AppContext, EventEmitter, FocusHandle, FocusableView, Subscription};
+use gpui::{canvas, AnyView, App, EventEmitter, FocusHandle, Focusable, Subscription};
 use language_model::{LanguageModelProvider, LanguageModelProviderId, LanguageModelRegistry};
 use ui::{prelude::*, ElevationIndex};
 use workspace::Item;
@@ -13,16 +13,17 @@ pub struct ConfigurationView {
 }

 impl ConfigurationView {
-    pub fn new(cx: &mut ViewContext<Self>) -> Self {
+    pub fn new(window: &mut Window, cx: &mut Context<Self>) -> Self {
        let focus_handle = cx.focus_handle();

-        let registry_subscription = cx.subscribe(
+        let registry_subscription = cx.subscribe_in(
            &LanguageModelRegistry::global(cx),
-            |this, _, event: &language_model::Event, cx| match event {
+            window,
+            |this, _, event: &language_model::Event, window, cx| match event {
                language_model::Event::AddedProvider(provider_id) => {
                    let provider = LanguageModelRegistry::read_global(cx).provider(provider_id);
                    if let Some(provider) = provider {
-                        this.add_configuration_view(&provider, cx);
+                        this.add_configuration_view(&provider, window, cx);
                    }
                }
                language_model::Event::RemovedProvider(provider_id) => {
@@ -37,14 +38,14 @@ impl ConfigurationView {
            configuration_views: HashMap::default(),
            _registry_subscription: registry_subscription,
        };
-        this.build_configuration_views(cx);
+        this.build_configuration_views(window, cx);
        this
    }

-    fn build_configuration_views(&mut self, cx: &mut ViewContext<Self>) {
+    fn build_configuration_views(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let providers = LanguageModelRegistry::read_global(cx).providers();
        for provider in providers {
-            self.add_configuration_view(&provider, cx);
+            self.add_configuration_view(&provider, window, cx);
        }
    }

@@ -55,9 +56,10 @@ impl ConfigurationView {
    fn add_configuration_view(
        &mut self,
        provider: &Arc<dyn LanguageModelProvider>,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
-        let configuration_view = provider.configuration_view(cx);
+        let configuration_view = provider.configuration_view(window, cx);
        self.configuration_views
            .insert(provider.id(), configuration_view);
    }
@@ -65,7 +67,7 @@ impl ConfigurationView {
    fn render_provider_view(
        &mut self,
        provider: &Arc<dyn LanguageModelProvider>,
-        cx: &mut ViewContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Div {
        let provider_id = provider.id().0.clone();
        let provider_name = provider.name().0.clone();
@@ -73,7 +75,7 @@ impl ConfigurationView {

        let open_new_context = cx.listener({
            let provider = provider.clone();
-            move |_, _, cx| {
+            move |_, _, _window, cx| {
                cx.emit(ConfigurationViewEvent::NewProviderContextEditor(
                    provider.clone(),
                ))
@@ -123,7 +125,7 @@ impl ConfigurationView {
 }

 impl Render for ConfigurationView {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let providers = LanguageModelRegistry::read_global(cx).providers();
        let provider_views = providers
            .into_iter()
@@ -163,12 +165,12 @@ impl Render for ConfigurationView {
        // We use a canvas here to get scrolling to work in the ConfigurationView. It's a workaround
        // because we couldn't the element to take up the size of the parent.
        canvas(
-            move |bounds, cx| {
-                element.prepaint_as_root(bounds.origin, bounds.size.into(), cx);
+            move |bounds, window, cx| {
+                element.prepaint_as_root(bounds.origin, bounds.size.into(), window, cx);
                element
            },
-            |_, mut element, cx| {
-                element.paint(cx);
+            |_, mut element, window, cx| {
+                element.paint(window, cx);
            },
        )
        .flex_1()
@@ -182,8 +184,8 @@ pub enum ConfigurationViewEvent {

 impl EventEmitter<ConfigurationViewEvent> for ConfigurationView {}

-impl FocusableView for ConfigurationView {
-    fn focus_handle(&self, _: &AppContext) -> FocusHandle {
+impl Focusable for ConfigurationView {
+    fn focus_handle(&self, _: &App) -> FocusHandle {
        self.focus_handle.clone()
    }
 }
@@ -191,7 +193,7 @@ impl FocusableView for ConfigurationView {
 impl Item for ConfigurationView {
    type Event = ConfigurationViewEvent;

-    fn tab_content_text(&self, _cx: &WindowContext) -> Option<SharedString> {
+    fn tab_content_text(&self, _window: &Window, _cx: &App) -> Option<SharedString> {
        Some("Configuration".into())
    }
 }
--- a/crates/assistant/src/assistant_panel.rs
+++ b/crates/assistant/src/assistant_panel.rs
--- a/crates/assistant/src/inline_assistant.rs
+++ b/crates/assistant/src/inline_assistant.rs
--- a/crates/assistant/src/slash_command_settings.rs
+++ b/crates/assistant/src/slash_command_settings.rs
@@ -1,5 +1,5 @@
 use anyhow::Result;
-use gpui::AppContext;
+use gpui::App;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use settings::{Settings, SettingsSources};
@@ -36,7 +36,7 @@ impl Settings for SlashCommandSettings {

    type FileContent = Self;

-    fn load(sources: SettingsSources<Self::FileContent>, _cx: &mut AppContext) -> Result<Self> {
+    fn load(sources: SettingsSources<Self::FileContent>, _cx: &mut App) -> Result<Self> {
        SettingsSources::<Self::FileContent>::json_merge_with(
            [sources.default]
                .into_iter()
--- a/crates/assistant/src/terminal_inline_assistant.rs
+++ b/crates/assistant/src/terminal_inline_assistant.rs
@@ -11,8 +11,8 @@ use editor::{
 use fs::Fs;
 use futures::{channel::mpsc, SinkExt, StreamExt};
 use gpui::{
-    AppContext, Context, EventEmitter, FocusHandle, FocusableView, Global, Model, ModelContext,
-    Subscription, Task, TextStyle, UpdateGlobal, View, WeakView,
+    App, Context, Entity, EventEmitter, FocusHandle, Focusable, Global, Subscription, Task,
+    TextStyle, UpdateGlobal, WeakEntity,
 };
 use language::Buffer;
 use language_model::{
@@ -39,7 +39,7 @@ pub fn init(
    fs: Arc<dyn Fs>,
    prompt_builder: Arc<PromptBuilder>,
    telemetry: Arc<Telemetry>,
-    cx: &mut AppContext,
+    cx: &mut App,
 ) {
    cx.set_global(TerminalInlineAssistant::new(fs, prompt_builder, telemetry));
 }
@@ -86,20 +86,20 @@ impl TerminalInlineAssistant {

    pub fn assist(
        &mut self,
-        terminal_view: &View<TerminalView>,
-        workspace: Option<WeakView<Workspace>>,
-        assistant_panel: Option<&View<AssistantPanel>>,
+        terminal_view: &Entity<TerminalView>,
+        workspace: Option<WeakEntity<Workspace>>,
+        assistant_panel: Option<&Entity<AssistantPanel>>,
        initial_prompt: Option<String>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) {
        let terminal = terminal_view.read(cx).terminal().clone();
        let assist_id = self.next_assist_id.post_inc();
-        let prompt_buffer =
-            cx.new_model(|cx| Buffer::local(initial_prompt.unwrap_or_default(), cx));
-        let prompt_buffer = cx.new_model(|cx| MultiBuffer::singleton(prompt_buffer, cx));
-        let codegen = cx.new_model(|_| Codegen::new(terminal, self.telemetry.clone()));
+        let prompt_buffer = cx.new(|cx| Buffer::local(initial_prompt.unwrap_or_default(), cx));
+        let prompt_buffer = cx.new(|cx| MultiBuffer::singleton(prompt_buffer, cx));
+        let codegen = cx.new(|_| Codegen::new(terminal, self.telemetry.clone()));

-        let prompt_editor = cx.new_view(|cx| {
+        let prompt_editor = cx.new(|cx| {
            PromptEditor::new(
                assist_id,
                self.prompt_history.clone(),
@@ -108,6 +108,7 @@ impl TerminalInlineAssistant {
                assistant_panel,
                workspace.clone(),
                self.fs.clone(),
+                window,
                cx,
            )
        });
@@ -117,7 +118,7 @@ impl TerminalInlineAssistant {
            render: Box::new(move |_| prompt_editor_render.clone().into_any_element()),
        };
        terminal_view.update(cx, |terminal_view, cx| {
-            terminal_view.set_block_below_cursor(block, cx);
+            terminal_view.set_block_below_cursor(block, window, cx);
        });

        let terminal_assistant = TerminalInlineAssist::new(
@@ -126,21 +127,27 @@ impl TerminalInlineAssistant {
            assistant_panel.is_some(),
            prompt_editor,
            workspace.clone(),
+            window,
            cx,
        );

        self.assists.insert(assist_id, terminal_assistant);

-        self.focus_assist(assist_id, cx);
+        self.focus_assist(assist_id, window, cx);
    }

-    fn focus_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut WindowContext) {
+    fn focus_assist(
+        &mut self,
+        assist_id: TerminalInlineAssistId,
+        window: &mut Window,
+        cx: &mut App,
+    ) {
        let assist = &self.assists[&assist_id];
        if let Some(prompt_editor) = assist.prompt_editor.as_ref() {
            prompt_editor.update(cx, |this, cx| {
                this.editor.update(cx, |editor, cx| {
-                    editor.focus(cx);
-                    editor.select_all(&SelectAll, cx);
+                    window.focus(&editor.focus_handle(cx));
+                    editor.select_all(&SelectAll, window, cx);
                });
            });
        }
@@ -148,9 +155,10 @@ impl TerminalInlineAssistant {

    fn handle_prompt_editor_event(
        &mut self,
-        prompt_editor: View<PromptEditor>,
+        prompt_editor: Entity<PromptEditor>,
        event: &PromptEditorEvent,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) {
        let assist_id = prompt_editor.read(cx).id;
        match event {
@@ -161,21 +169,21 @@ impl TerminalInlineAssistant {
                self.stop_assist(assist_id, cx);
            }
            PromptEditorEvent::ConfirmRequested { execute } => {
-                self.finish_assist(assist_id, false, *execute, cx);
+                self.finish_assist(assist_id, false, *execute, window, cx);
            }
            PromptEditorEvent::CancelRequested => {
-                self.finish_assist(assist_id, true, false, cx);
+                self.finish_assist(assist_id, true, false, window, cx);
            }
            PromptEditorEvent::DismissRequested => {
-                self.dismiss_assist(assist_id, cx);
+                self.dismiss_assist(assist_id, window, cx);
            }
            PromptEditorEvent::Resized { height_in_lines } => {
-                self.insert_prompt_editor_into_terminal(assist_id, *height_in_lines, cx);
+                self.insert_prompt_editor_into_terminal(assist_id, *height_in_lines, window, cx);
            }
        }
    }

-    fn start_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut WindowContext) {
+    fn start_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
            assist
        } else {
@@ -213,7 +221,7 @@ impl TerminalInlineAssistant {
        codegen.update(cx, |codegen, cx| codegen.start(request, cx));
    }

-    fn stop_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut WindowContext) {
+    fn stop_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
            assist
        } else {
@@ -226,7 +234,7 @@ impl TerminalInlineAssistant {
    fn request_for_inline_assist(
        &self,
        assist_id: TerminalInlineAssistId,
-        cx: &mut WindowContext,
+        cx: &mut App,
    ) -> Result<LanguageModelRequest> {
        let assist = self.assists.get(&assist_id).context("invalid assist")?;

@@ -234,7 +242,7 @@ impl TerminalInlineAssistant {
        let (latest_output, working_directory) = assist
            .terminal
            .update(cx, |terminal, cx| {
-                let terminal = terminal.model().read(cx);
+                let terminal = terminal.entity().read(cx);
                let latest_output = terminal.last_n_non_empty_lines(DEFAULT_CONTEXT_LINES);
                let working_directory = terminal
                    .working_directory()
@@ -296,16 +304,17 @@ impl TerminalInlineAssistant {
        assist_id: TerminalInlineAssistId,
        undo: bool,
        execute: bool,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) {
-        self.dismiss_assist(assist_id, cx);
+        self.dismiss_assist(assist_id, window, cx);

        if let Some(assist) = self.assists.remove(&assist_id) {
            assist
                .terminal
                .update(cx, |this, cx| {
                    this.clear_block_below_cursor(cx);
-                    this.focus_handle(cx).focus(cx);
+                    this.focus_handle(cx).focus(window);
                })
                .log_err();

@@ -348,7 +357,8 @@ impl TerminalInlineAssistant {
    fn dismiss_assist(
        &mut self,
        assist_id: TerminalInlineAssistId,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> bool {
        let Some(assist) = self.assists.get_mut(&assist_id) else {
            return false;
@@ -361,7 +371,7 @@ impl TerminalInlineAssistant {
            .terminal
            .update(cx, |this, cx| {
                this.clear_block_below_cursor(cx);
-                this.focus_handle(cx).focus(cx);
+                this.focus_handle(cx).focus(window);
            })
            .is_ok()
    }
@@ -370,7 +380,8 @@ impl TerminalInlineAssistant {
        &mut self,
        assist_id: TerminalInlineAssistId,
        height: u8,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) {
        if let Some(assist) = self.assists.get_mut(&assist_id) {
            if let Some(prompt_editor) = assist.prompt_editor.as_ref().cloned() {
@@ -382,7 +393,7 @@ impl TerminalInlineAssistant {
                            height,
                            render: Box::new(move |_| prompt_editor.clone().into_any_element()),
                        };
-                        terminal.set_block_below_cursor(block, cx);
+                        terminal.set_block_below_cursor(block, window, cx);
                    })
                    .log_err();
            }
@@ -391,10 +402,10 @@ impl TerminalInlineAssistant {
 }

 struct TerminalInlineAssist {
-    terminal: WeakView<TerminalView>,
-    prompt_editor: Option<View<PromptEditor>>,
-    codegen: Model<Codegen>,
-    workspace: Option<WeakView<Workspace>>,
+    terminal: WeakEntity<TerminalView>,
+    prompt_editor: Option<Entity<PromptEditor>>,
+    codegen: Entity<Codegen>,
+    workspace: Option<WeakEntity<Workspace>>,
    include_context: bool,
    _subscriptions: Vec<Subscription>,
 }
@@ -402,11 +413,12 @@ struct TerminalInlineAssist {
 impl TerminalInlineAssist {
    pub fn new(
        assist_id: TerminalInlineAssistId,
-        terminal: &View<TerminalView>,
+        terminal: &Entity<TerminalView>,
        include_context: bool,
-        prompt_editor: View<PromptEditor>,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        prompt_editor: Entity<PromptEditor>,
+        workspace: Option<WeakEntity<Workspace>>,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Self {
        let codegen = prompt_editor.read(cx).codegen.clone();
        Self {
@@ -416,12 +428,12 @@ impl TerminalInlineAssist {
            workspace: workspace.clone(),
            include_context,
            _subscriptions: vec![
-                cx.subscribe(&prompt_editor, |prompt_editor, event, cx| {
+                window.subscribe(&prompt_editor, cx, |prompt_editor, event, window, cx| {
                    TerminalInlineAssistant::update_global(cx, |this, cx| {
-                        this.handle_prompt_editor_event(prompt_editor, event, cx)
+                        this.handle_prompt_editor_event(prompt_editor, event, window, cx)
                    })
                }),
-                cx.subscribe(&codegen, move |codegen, event, cx| {
+                window.subscribe(&codegen, cx, move |codegen, event, window, cx| {
                    TerminalInlineAssistant::update_global(cx, |this, cx| match event {
                        CodegenEvent::Finished => {
                            let assist = if let Some(assist) = this.assists.get(&assist_id) {
@@ -454,7 +466,7 @@ impl TerminalInlineAssist {
                            }

                            if assist.prompt_editor.is_none() {
-                                this.finish_assist(assist_id, false, false, cx);
+                                this.finish_assist(assist_id, false, false, window, cx);
                            }
                        }
                    })
@@ -476,25 +488,25 @@ enum PromptEditorEvent {
 struct PromptEditor {
    id: TerminalInlineAssistId,
    height_in_lines: u8,
-    editor: View<Editor>,
-    language_model_selector: View<LanguageModelSelector>,
+    editor: Entity<Editor>,
+    language_model_selector: Entity<LanguageModelSelector>,
    edited_since_done: bool,
    prompt_history: VecDeque<String>,
    prompt_history_ix: Option<usize>,
    pending_prompt: String,
-    codegen: Model<Codegen>,
+    codegen: Entity<Codegen>,
    _codegen_subscription: Subscription,
    editor_subscriptions: Vec<Subscription>,
    pending_token_count: Task<Result<()>>,
    token_count: Option<usize>,
    _token_count_subscriptions: Vec<Subscription>,
-    workspace: Option<WeakView<Workspace>>,
+    workspace: Option<WeakEntity<Workspace>>,
 }

 impl EventEmitter<PromptEditorEvent> for PromptEditor {}

 impl Render for PromptEditor {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let status = &self.codegen.read(cx).status;
        let buttons = match status {
            CodegenStatus::Idle => {
@@ -502,16 +514,20 @@ impl Render for PromptEditor {
                    IconButton::new("cancel", IconName::Close)
                        .icon_color(Color::Muted)
                        .shape(IconButtonShape::Square)
-                        .tooltip(|cx| Tooltip::for_action("Cancel Assist", &menu::Cancel, cx))
+                        .tooltip(|window, cx| {
+                            Tooltip::for_action("Cancel Assist", &menu::Cancel, window, cx)
+                        })
                        .on_click(
-                            cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
+                            cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
                        ),
                    IconButton::new("start", IconName::SparkleAlt)
                        .icon_color(Color::Muted)
                        .shape(IconButtonShape::Square)
-                        .tooltip(|cx| Tooltip::for_action("Generate", &menu::Confirm, cx))
+                        .tooltip(|window, cx| {
+                            Tooltip::for_action("Generate", &menu::Confirm, window, cx)
+                        })
                        .on_click(
-                            cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::StartRequested)),
+                            cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::StartRequested)),
                        ),
                ]
            }
@@ -520,23 +536,24 @@ impl Render for PromptEditor {
                    IconButton::new("cancel", IconName::Close)
                        .icon_color(Color::Muted)
                        .shape(IconButtonShape::Square)
-                        .tooltip(|cx| Tooltip::text("Cancel Assist", cx))
+                        .tooltip(Tooltip::text("Cancel Assist"))
                        .on_click(
-                            cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
+                            cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
                        ),
                    IconButton::new("stop", IconName::Stop)
                        .icon_color(Color::Error)
                        .shape(IconButtonShape::Square)
-                        .tooltip(|cx| {
+                        .tooltip(|window, cx| {
                            Tooltip::with_meta(
                                "Interrupt Generation",
                                Some(&menu::Cancel),
                                "Changes won't be discarded",
+                                window,
                                cx,
                            )
                        })
                        .on_click(
-                            cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::StopRequested)),
+                            cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::StopRequested)),
                        ),
                ]
            }
@@ -544,8 +561,12 @@ impl Render for PromptEditor {
                let cancel = IconButton::new("cancel", IconName::Close)
                    .icon_color(Color::Muted)
                    .shape(IconButtonShape::Square)
-                    .tooltip(|cx| Tooltip::for_action("Cancel Assist", &menu::Cancel, cx))
-                    .on_click(cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::CancelRequested)));
+                    .tooltip(|window, cx| {
+                        Tooltip::for_action("Cancel Assist", &menu::Cancel, window, cx)
+                    })
+                    .on_click(
+                        cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
+                    );

                let has_error = matches!(status, CodegenStatus::Error(_));
                if has_error || self.edited_since_done {
@@ -554,15 +575,16 @@ impl Render for PromptEditor {
                        IconButton::new("restart", IconName::RotateCw)
                            .icon_color(Color::Info)
                            .shape(IconButtonShape::Square)
-                            .tooltip(|cx| {
+                            .tooltip(|window, cx| {
                                Tooltip::with_meta(
                                    "Restart Generation",
                                    Some(&menu::Confirm),
                                    "Changes will be discarded",
+                                    window,
                                    cx,
                                )
                            })
-                            .on_click(cx.listener(|_, _, cx| {
+                            .on_click(cx.listener(|_, _, _, cx| {
                                cx.emit(PromptEditorEvent::StartRequested);
                            })),
                    ]
@@ -572,23 +594,29 @@ impl Render for PromptEditor {
                        IconButton::new("accept", IconName::Check)
                            .icon_color(Color::Info)
                            .shape(IconButtonShape::Square)
-                            .tooltip(|cx| {
-                                Tooltip::for_action("Accept Generated Command", &menu::Confirm, cx)
+                            .tooltip(|window, cx| {
+                                Tooltip::for_action(
+                                    "Accept Generated Command",
+                                    &menu::Confirm,
+                                    window,
+                                    cx,
+                                )
                            })
-                            .on_click(cx.listener(|_, _, cx| {
+                            .on_click(cx.listener(|_, _, _, cx| {
                                cx.emit(PromptEditorEvent::ConfirmRequested { execute: false });
                            })),
                        IconButton::new("confirm", IconName::Play)
                            .icon_color(Color::Info)
                            .shape(IconButtonShape::Square)
-                            .tooltip(|cx| {
+                            .tooltip(|window, cx| {
                                Tooltip::for_action(
                                    "Execute Generated Command",
                                    &menu::SecondaryConfirm,
+                                    window,
                                    cx,
                                )
                            })
-                            .on_click(cx.listener(|_, _, cx| {
+                            .on_click(cx.listener(|_, _, _, cx| {
                                cx.emit(PromptEditorEvent::ConfirmRequested { execute: true });
                            })),
                    ]
@@ -619,7 +647,7 @@ impl Render for PromptEditor {
                            .shape(IconButtonShape::Square)
                            .icon_size(IconSize::Small)
                            .icon_color(Color::Muted)
-                            .tooltip(move |cx| {
+                            .tooltip(move |window, cx| {
                                Tooltip::with_meta(
                                    format!(
                                        "Using {}",
@@ -630,6 +658,7 @@ impl Render for PromptEditor {
                                    ),
                                    None,
                                    "Change Model",
+                                    window,
                                    cx,
                                )
                            }),
@@ -640,7 +669,7 @@ impl Render for PromptEditor {
                            Some(
                                div()
                                    .id("error")
-                                    .tooltip(move |cx| Tooltip::text(error_message.clone(), cx))
+                                    .tooltip(Tooltip::text(error_message))
                                    .child(
                                        Icon::new(IconName::XCircle)
                                            .size(IconSize::Small)
@@ -663,8 +692,8 @@ impl Render for PromptEditor {
    }
 }

-impl FocusableView for PromptEditor {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl Focusable for PromptEditor {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.editor.focus_handle(cx)
    }
 }
@@ -676,14 +705,15 @@ impl PromptEditor {
    fn new(
        id: TerminalInlineAssistId,
        prompt_history: VecDeque<String>,
-        prompt_buffer: Model<MultiBuffer>,
-        codegen: Model<Codegen>,
-        assistant_panel: Option<&View<AssistantPanel>>,
-        workspace: Option<WeakView<Workspace>>,
+        prompt_buffer: Entity<MultiBuffer>,
+        codegen: Entity<Codegen>,
+        assistant_panel: Option<&Entity<AssistantPanel>>,
+        workspace: Option<WeakEntity<Workspace>>,
        fs: Arc<dyn Fs>,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
-        let prompt_editor = cx.new_view(|cx| {
+        let prompt_editor = cx.new(|cx| {
            let mut editor = Editor::new(
                EditorMode::AutoHeight {
                    max_lines: Self::MAX_LINES as usize,
@@ -691,24 +721,28 @@ impl PromptEditor {
                prompt_buffer,
                None,
                false,
+                window,
                cx,
            );
            editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
-            editor.set_placeholder_text(Self::placeholder_text(cx), cx);
+            editor.set_placeholder_text(Self::placeholder_text(window), cx);
            editor
        });

        let mut token_count_subscriptions = Vec::new();
        if let Some(assistant_panel) = assistant_panel {
-            token_count_subscriptions
-                .push(cx.subscribe(assistant_panel, Self::handle_assistant_panel_event));
+            token_count_subscriptions.push(cx.subscribe_in(
+                assistant_panel,
+                window,
+                Self::handle_assistant_panel_event,
+            ));
        }

        let mut this = Self {
            id,
            height_in_lines: 1,
            editor: prompt_editor,
-            language_model_selector: cx.new_view(|cx| {
+            language_model_selector: cx.new(|cx| {
                let fs = fs.clone();
                LanguageModelSelector::new(
                    move |model, cx| {
@@ -718,6 +752,7 @@ impl PromptEditor {
                            move |settings, _| settings.set_model(model.clone()),
                        );
                    },
+                    window,
                    cx,
                )
            }),
@@ -725,7 +760,7 @@ impl PromptEditor {
            prompt_history,
            prompt_history_ix: None,
            pending_prompt: String::new(),
-            _codegen_subscription: cx.observe(&codegen, Self::handle_codegen_changed),
+            _codegen_subscription: cx.observe_in(&codegen, window, Self::handle_codegen_changed),
            editor_subscriptions: Vec::new(),
            codegen,
            pending_token_count: Task::ready(Ok(())),
@@ -739,15 +774,15 @@ impl PromptEditor {
        this
    }

-    fn placeholder_text(cx: &WindowContext) -> String {
-        let context_keybinding = text_for_action(&zed_actions::assistant::ToggleFocus, cx)
+    fn placeholder_text(window: &Window) -> String {
+        let context_keybinding = text_for_action(&zed_actions::assistant::ToggleFocus, window)
            .map(|keybinding| format!(" • {keybinding} for context"))
            .unwrap_or_default();

        format!("Generate…{context_keybinding} • ↓↑ for history")
    }

-    fn subscribe_to_editor(&mut self, cx: &mut ViewContext<Self>) {
+    fn subscribe_to_editor(&mut self, cx: &mut Context<Self>) {
        self.editor_subscriptions.clear();
        self.editor_subscriptions
            .push(cx.observe(&self.editor, Self::handle_prompt_editor_changed));
@@ -755,11 +790,11 @@ impl PromptEditor {
            .push(cx.subscribe(&self.editor, Self::handle_prompt_editor_events));
    }

-    fn prompt(&self, cx: &AppContext) -> String {
+    fn prompt(&self, cx: &App) -> String {
        self.editor.read(cx).text(cx)
    }

-    fn count_lines(&mut self, cx: &mut ViewContext<Self>) {
+    fn count_lines(&mut self, cx: &mut Context<Self>) {
        let height_in_lines = cmp::max(
            2, // Make the editor at least two lines tall, to account for padding and buttons.
            cmp::min(
@@ -777,15 +812,16 @@ impl PromptEditor {

    fn handle_assistant_panel_event(
        &mut self,
-        _: View<AssistantPanel>,
+        _: &Entity<AssistantPanel>,
        event: &AssistantPanelEvent,
-        cx: &mut ViewContext<Self>,
+        _: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        let AssistantPanelEvent::ContextEdited { .. } = event;
        self.count_tokens(cx);
    }

-    fn count_tokens(&mut self, cx: &mut ViewContext<Self>) {
+    fn count_tokens(&mut self, cx: &mut Context<Self>) {
        let assist_id = self.id;
        let Some(model) = LanguageModelRegistry::read_global(cx).active_model() else {
            return;
@@ -805,15 +841,15 @@ impl PromptEditor {
        })
    }

-    fn handle_prompt_editor_changed(&mut self, _: View<Editor>, cx: &mut ViewContext<Self>) {
+    fn handle_prompt_editor_changed(&mut self, _: Entity<Editor>, cx: &mut Context<Self>) {
        self.count_lines(cx);
    }

    fn handle_prompt_editor_events(
        &mut self,
-        _: View<Editor>,
+        _: Entity<Editor>,
        event: &EditorEvent,
-        cx: &mut ViewContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        match event {
            EditorEvent::Edited { .. } => {
@@ -836,7 +872,12 @@ impl PromptEditor {
        }
    }

-    fn handle_codegen_changed(&mut self, _: Model<Codegen>, cx: &mut ViewContext<Self>) {
+    fn handle_codegen_changed(
+        &mut self,
+        _: Entity<Codegen>,
+        _: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        match &self.codegen.read(cx).status {
            CodegenStatus::Idle => {
                self.editor
@@ -854,7 +895,7 @@ impl PromptEditor {
        }
    }

-    fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
+    fn cancel(&mut self, _: &editor::actions::Cancel, _: &mut Window, cx: &mut Context<Self>) {
        match &self.codegen.read(cx).status {
            CodegenStatus::Idle | CodegenStatus::Done | CodegenStatus::Error(_) => {
                cx.emit(PromptEditorEvent::CancelRequested);
@@ -865,7 +906,7 @@ impl PromptEditor {
        }
    }

-    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
+    fn confirm(&mut self, _: &menu::Confirm, _: &mut Window, cx: &mut Context<Self>) {
        match &self.codegen.read(cx).status {
            CodegenStatus::Idle => {
                if !self.editor.read(cx).text(cx).trim().is_empty() {
@@ -888,53 +929,58 @@ impl PromptEditor {
        }
    }

-    fn secondary_confirm(&mut self, _: &menu::SecondaryConfirm, cx: &mut ViewContext<Self>) {
+    fn secondary_confirm(
+        &mut self,
+        _: &menu::SecondaryConfirm,
+        _: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        if matches!(self.codegen.read(cx).status, CodegenStatus::Done) {
            cx.emit(PromptEditorEvent::ConfirmRequested { execute: true });
        }
    }

-    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
+    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(ix) = self.prompt_history_ix {
            if ix > 0 {
                self.prompt_history_ix = Some(ix - 1);
                let prompt = self.prompt_history[ix - 1].as_str();
                self.editor.update(cx, |editor, cx| {
-                    editor.set_text(prompt, cx);
-                    editor.move_to_beginning(&Default::default(), cx);
+                    editor.set_text(prompt, window, cx);
+                    editor.move_to_beginning(&Default::default(), window, cx);
                });
            }
        } else if !self.prompt_history.is_empty() {
            self.prompt_history_ix = Some(self.prompt_history.len() - 1);
            let prompt = self.prompt_history[self.prompt_history.len() - 1].as_str();
            self.editor.update(cx, |editor, cx| {
-                editor.set_text(prompt, cx);
-                editor.move_to_beginning(&Default::default(), cx);
+                editor.set_text(prompt, window, cx);
+                editor.move_to_beginning(&Default::default(), window, cx);
            });
        }
    }

-    fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
+    fn move_down(&mut self, _: &MoveDown, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(ix) = self.prompt_history_ix {
            if ix < self.prompt_history.len() - 1 {
                self.prompt_history_ix = Some(ix + 1);
                let prompt = self.prompt_history[ix + 1].as_str();
                self.editor.update(cx, |editor, cx| {
-                    editor.set_text(prompt, cx);
-                    editor.move_to_end(&Default::default(), cx)
+                    editor.set_text(prompt, window, cx);
+                    editor.move_to_end(&Default::default(), window, cx)
                });
            } else {
                self.prompt_history_ix = None;
                let prompt = self.pending_prompt.as_str();
                self.editor.update(cx, |editor, cx| {
-                    editor.set_text(prompt, cx);
-                    editor.move_to_end(&Default::default(), cx)
+                    editor.set_text(prompt, window, cx);
+                    editor.move_to_end(&Default::default(), window, cx)
                });
            }
        }
    }

-    fn render_token_count(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
+    fn render_token_count(&self, cx: &mut Context<Self>) -> Option<impl IntoElement> {
        let model = LanguageModelRegistry::read_global(cx).active_model()?;
        let token_count = self.token_count?;
        let max_token_count = model.max_token_count();
@@ -964,34 +1010,35 @@ impl PromptEditor {
            );
        if let Some(workspace) = self.workspace.clone() {
            token_count = token_count
-                .tooltip(|cx| {
+                .tooltip(|window, cx| {
                    Tooltip::with_meta(
                        "Tokens Used by Inline Assistant",
                        None,
                        "Click to Open Assistant Panel",
+                        window,
                        cx,
                    )
                })
                .cursor_pointer()
-                .on_mouse_down(gpui::MouseButton::Left, |_, cx| cx.stop_propagation())
-                .on_click(move |_, cx| {
+                .on_mouse_down(gpui::MouseButton::Left, |_, _, cx| cx.stop_propagation())
+                .on_click(move |_, window, cx| {
                    cx.stop_propagation();
                    workspace
                        .update(cx, |workspace, cx| {
-                            workspace.focus_panel::<AssistantPanel>(cx)
+                            workspace.focus_panel::<AssistantPanel>(window, cx)
                        })
                        .ok();
                });
        } else {
            token_count = token_count
                .cursor_default()
-                .tooltip(|cx| Tooltip::text("Tokens Used by Inline Assistant", cx));
+                .tooltip(Tooltip::text("Tokens Used by Inline Assistant"));
        }

        Some(token_count)
    }

-    fn render_prompt_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
        let settings = ThemeSettings::get_global(cx);
        let text_style = TextStyle {
            color: if self.editor.read(cx).read_only(cx) {
@@ -1029,27 +1076,27 @@ const CLEAR_INPUT: &str = "\x15";
 const CARRIAGE_RETURN: &str = "\x0d";

 struct TerminalTransaction {
-    terminal: Model<Terminal>,
+    terminal: Entity<Terminal>,
 }

 impl TerminalTransaction {
-    pub fn start(terminal: Model<Terminal>) -> Self {
+    pub fn start(terminal: Entity<Terminal>) -> Self {
        Self { terminal }
    }

-    pub fn push(&mut self, hunk: String, cx: &mut AppContext) {
+    pub fn push(&mut self, hunk: String, cx: &mut App) {
        // Ensure that the assistant cannot accidentally execute commands that are streamed into the terminal
        let input = Self::sanitize_input(hunk);
        self.terminal
            .update(cx, |terminal, _| terminal.input(input));
    }

-    pub fn undo(&self, cx: &mut AppContext) {
+    pub fn undo(&self, cx: &mut App) {
        self.terminal
            .update(cx, |terminal, _| terminal.input(CLEAR_INPUT.to_string()));
    }

-    pub fn complete(&self, cx: &mut AppContext) {
+    pub fn complete(&self, cx: &mut App) {
        self.terminal.update(cx, |terminal, _| {
            terminal.input(CARRIAGE_RETURN.to_string())
        });
@@ -1063,14 +1110,14 @@ impl TerminalTransaction {
 pub struct Codegen {
    status: CodegenStatus,
    telemetry: Option<Arc<Telemetry>>,
-    terminal: Model<Terminal>,
+    terminal: Entity<Terminal>,
    generation: Task<()>,
    message_id: Option<String>,
    transaction: Option<TerminalTransaction>,
 }

 impl Codegen {
-    pub fn new(terminal: Model<Terminal>, telemetry: Option<Arc<Telemetry>>) -> Self {
+    pub fn new(terminal: Entity<Terminal>, telemetry: Option<Arc<Telemetry>>) -> Self {
        Self {
            terminal,
            telemetry,
@@ -1081,7 +1128,7 @@ impl Codegen {
        }
    }

-    pub fn start(&mut self, prompt: LanguageModelRequest, cx: &mut ModelContext<Self>) {
+    pub fn start(&mut self, prompt: LanguageModelRequest, cx: &mut Context<Self>) {
        let Some(model) = LanguageModelRegistry::read_global(cx).active_model() else {
            return;
        };
@@ -1181,20 +1228,20 @@ impl Codegen {
        cx.notify();
    }

-    pub fn stop(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn stop(&mut self, cx: &mut Context<Self>) {
        self.status = CodegenStatus::Done;
        self.generation = Task::ready(());
        cx.emit(CodegenEvent::Finished);
        cx.notify();
    }

-    pub fn complete(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn complete(&mut self, cx: &mut Context<Self>) {
        if let Some(transaction) = self.transaction.take() {
            transaction.complete(cx);
        }
    }

-    pub fn undo(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn undo(&mut self, cx: &mut Context<Self>) {
        if let Some(transaction) = self.transaction.take() {
            transaction.undo(cx);
        }
--- a/crates/assistant2/Cargo.toml
+++ b/crates/assistant2/Cargo.toml
@@ -39,6 +39,7 @@ fs.workspace = true
 futures.workspace = true
 fuzzy.workspace = true
 gpui.workspace = true
+heed.workspace = true
 html_to_markdown.workspace = true
 http_client.workspace = true
 itertools.workspace = true
@@ -52,6 +53,7 @@ markdown.workspace = true
 menu.workspace = true
 multi_buffer.workspace = true
 parking_lot.workspace = true
+paths.workspace = true
 picker.workspace = true
 project.workspace = true
 prompt_library.workspace = true
@@ -71,7 +73,6 @@ theme.workspace = true
 time.workspace = true
 time_format.workspace = true
 ui.workspace = true
-unindent.workspace = true
 util.workspace = true
 uuid.workspace = true
 workspace.workspace = true
--- a/crates/assistant2/src/active_thread.rs
+++ b/crates/assistant2/src/active_thread.rs
@@ -3,9 +3,9 @@ use std::sync::Arc;
 use assistant_tool::ToolWorkingSet;
 use collections::HashMap;
 use gpui::{
-    list, AbsoluteLength, AnyElement, AppContext, DefiniteLength, EdgesRefinement, Empty, Length,
-    ListAlignment, ListOffset, ListState, Model, StyleRefinement, Subscription,
-    TextStyleRefinement, UnderlineStyle, View, WeakView,
+    list, AbsoluteLength, AnyElement, App, DefiniteLength, EdgesRefinement, Empty, Entity, Length,
+    ListAlignment, ListOffset, ListState, StyleRefinement, Subscription, TextStyleRefinement,
+    UnderlineStyle, WeakEntity,
 };
 use language::LanguageRegistry;
 use language_model::Role;
@@ -16,43 +16,48 @@ use ui::prelude::*;
 use workspace::Workspace;

 use crate::thread::{MessageId, Thread, ThreadError, ThreadEvent};
+use crate::thread_store::ThreadStore;
 use crate::ui::ContextPill;

 pub struct ActiveThread {
-    workspace: WeakView<Workspace>,
+    workspace: WeakEntity<Workspace>,
    language_registry: Arc<LanguageRegistry>,
    tools: Arc<ToolWorkingSet>,
-    pub(crate) thread: Model<Thread>,
+    thread_store: Entity<ThreadStore>,
+    thread: Entity<Thread>,
    messages: Vec<MessageId>,
    list_state: ListState,
-    rendered_messages_by_id: HashMap<MessageId, View<Markdown>>,
+    rendered_messages_by_id: HashMap<MessageId, Entity<Markdown>>,
    last_error: Option<ThreadError>,
    _subscriptions: Vec<Subscription>,
 }

 impl ActiveThread {
    pub fn new(
-        thread: Model<Thread>,
-        workspace: WeakView<Workspace>,
+        thread: Entity<Thread>,
+        thread_store: Entity<ThreadStore>,
+        workspace: WeakEntity<Workspace>,
        language_registry: Arc<LanguageRegistry>,
        tools: Arc<ToolWorkingSet>,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
        let subscriptions = vec![
            cx.observe(&thread, |_, _, cx| cx.notify()),
-            cx.subscribe(&thread, Self::handle_thread_event),
+            cx.subscribe_in(&thread, window, Self::handle_thread_event),
        ];

        let mut this = Self {
            workspace,
            language_registry,
            tools,
+            thread_store,
            thread: thread.clone(),
            messages: Vec::new(),
            rendered_messages_by_id: HashMap::default(),
            list_state: ListState::new(0, ListAlignment::Bottom, px(1024.), {
-                let this = cx.view().downgrade();
-                move |ix, cx: &mut WindowContext| {
+                let this = cx.entity().downgrade();
+                move |ix, _: &mut Window, cx: &mut App| {
                    this.update(cx, |this, cx| this.render_message(ix, cx))
                        .unwrap()
                }
@@ -62,25 +67,29 @@ impl ActiveThread {
        };

        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
-            this.push_message(&message.id, message.text.clone(), cx);
+            this.push_message(&message.id, message.text.clone(), window, cx);
        }

        this
    }

+    pub fn thread(&self) -> &Entity<Thread> {
+        &self.thread
+    }
+
    pub fn is_empty(&self) -> bool {
        self.messages.is_empty()
    }

-    pub fn summary(&self, cx: &AppContext) -> Option<SharedString> {
+    pub fn summary(&self, cx: &App) -> Option<SharedString> {
        self.thread.read(cx).summary()
    }

-    pub fn summary_or_default(&self, cx: &AppContext) -> SharedString {
+    pub fn summary_or_default(&self, cx: &App) -> SharedString {
        self.thread.read(cx).summary_or_default()
    }

-    pub fn cancel_last_completion(&mut self, cx: &mut AppContext) -> bool {
+    pub fn cancel_last_completion(&mut self, cx: &mut App) -> bool {
        self.last_error.take();
        self.thread
            .update(cx, |thread, _cx| thread.cancel_last_completion())
@@ -94,7 +103,13 @@ impl ActiveThread {
        self.last_error.take();
    }

-    fn push_message(&mut self, id: &MessageId, text: String, cx: &mut ViewContext<Self>) {
+    fn push_message(
+        &mut self,
+        id: &MessageId,
+        text: String,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        let old_len = self.messages.len();
        self.messages.push(*id);
        self.list_state.splice(old_len..old_len, 1);
@@ -103,7 +118,7 @@ impl ActiveThread {
        let colors = cx.theme().colors();
        let ui_font_size = TextSize::Default.rems(cx);
        let buffer_font_size = TextSize::Small.rems(cx);
-        let mut text_style = cx.text_style();
+        let mut text_style = window.text_style();

        text_style.refine(&TextStyleRefinement {
            font_family: Some(theme_settings.ui_font.family.clone()),
@@ -162,12 +177,13 @@ impl ActiveThread {
            ..Default::default()
        };

-        let markdown = cx.new_view(|cx| {
+        let markdown = cx.new(|cx| {
            Markdown::new(
                text,
                markdown_style,
                Some(self.language_registry.clone()),
                None,
+                window,
                cx,
            )
        });
@@ -180,20 +196,26 @@ impl ActiveThread {

    fn handle_thread_event(
        &mut self,
-        _: Model<Thread>,
+        _: &Entity<Thread>,
        event: &ThreadEvent,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        match event {
            ThreadEvent::ShowError(error) => {
                self.last_error = Some(error.clone());
            }
-            ThreadEvent::StreamedCompletion => {}
-            ThreadEvent::SummaryChanged => {}
+            ThreadEvent::StreamedCompletion | ThreadEvent::SummaryChanged => {
+                self.thread_store
+                    .update(cx, |thread_store, cx| {
+                        thread_store.save_thread(&self.thread, cx)
+                    })
+                    .detach_and_log_err(cx);
+            }
            ThreadEvent::StreamedAssistantText(message_id, text) => {
                if let Some(markdown) = self.rendered_messages_by_id.get_mut(&message_id) {
                    markdown.update(cx, |markdown, cx| {
-                        markdown.append(text, cx);
+                        markdown.append(text, window, cx);
                    });
                }
            }
@@ -204,9 +226,15 @@ impl ActiveThread {
                    .message(*message_id)
                    .map(|message| message.text.clone())
                {
-                    self.push_message(message_id, message_text, cx);
+                    self.push_message(message_id, message_text, window, cx);
                }

+                self.thread_store
+                    .update(cx, |thread_store, cx| {
+                        thread_store.save_thread(&self.thread, cx)
+                    })
+                    .detach_and_log_err(cx);
+
                cx.notify();
            }
            ThreadEvent::UsePendingTools => {
@@ -221,7 +249,7 @@ impl ActiveThread {

                for tool_use in pending_tool_uses {
                    if let Some(tool) = self.tools.tool(&tool_use.name, cx) {
-                        let task = tool.run(tool_use.input, self.workspace.clone(), cx);
+                        let task = tool.run(tool_use.input, self.workspace.clone(), window, cx);

                        self.thread.update(cx, |thread, cx| {
                            thread.insert_tool_output(
@@ -238,7 +266,7 @@ impl ActiveThread {
        }
    }

-    fn render_message(&self, ix: usize, cx: &mut ViewContext<Self>) -> AnyElement {
+    fn render_message(&self, ix: usize, cx: &mut Context<Self>) -> AnyElement {
        let message_id = self.messages[ix];
        let Some(message) = self.thread.read(cx).message(message_id) else {
            return Empty.into_any();
@@ -270,7 +298,7 @@ impl ActiveThread {
        let styled_message = match message.role {
            Role::User => v_flex()
                .id(("message-container", ix))
-                .py_1()
+                .pt_2p5()
                .px_2p5()
                .child(
                    v_flex()
@@ -319,10 +347,9 @@ impl ActiveThread {
 }

 impl Render for ActiveThread {
-    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        v_flex()
            .size_full()
-            .pt_1p5()
            .child(list(self.list_state.clone()).flex_grow())
    }
 }
--- a/crates/assistant2/src/assistant.rs
+++ b/crates/assistant2/src/assistant.rs
@@ -24,7 +24,7 @@ use client::Client;
 use command_palette_hooks::CommandPaletteFilter;
 use feature_flags::{Assistant2FeatureFlag, FeatureFlagAppExt};
 use fs::Fs;
-use gpui::{actions, AppContext};
+use gpui::{actions, App};
 use prompt_library::PromptBuilder;
 use settings::Settings as _;

@@ -63,7 +63,7 @@ pub fn init(
    fs: Arc<dyn Fs>,
    client: Arc<Client>,
    prompt_builder: Arc<PromptBuilder>,
-    cx: &mut AppContext,
+    cx: &mut App,
 ) {
    AssistantSettings::register(cx);
    assistant_panel::init(cx);
@@ -84,7 +84,7 @@ pub fn init(
    feature_gate_assistant2_actions(cx);
 }

-fn feature_gate_assistant2_actions(cx: &mut AppContext) {
+fn feature_gate_assistant2_actions(cx: &mut App) {
    CommandPaletteFilter::update_global(cx, |filter, _cx| {
        filter.hide_namespace(NAMESPACE);
    });
--- a/crates/assistant2/src/assistant_configuration.rs
+++ b/crates/assistant2/src/assistant_configuration.rs
@@ -1,7 +1,7 @@
 use std::sync::Arc;

 use collections::HashMap;
-use gpui::{Action, AnyView, AppContext, EventEmitter, FocusHandle, FocusableView, Subscription};
+use gpui::{AnyView, App, EventEmitter, FocusHandle, Focusable, Subscription};
 use language_model::{LanguageModelProvider, LanguageModelProviderId, LanguageModelRegistry};
 use ui::{prelude::*, ElevationIndex};
 use zed_actions::assistant::DeployPromptLibrary;
@@ -13,16 +13,17 @@ pub struct AssistantConfiguration {
 }

 impl AssistantConfiguration {
-    pub fn new(cx: &mut ViewContext<Self>) -> Self {
+    pub fn new(window: &mut Window, cx: &mut Context<Self>) -> Self {
        let focus_handle = cx.focus_handle();

-        let registry_subscription = cx.subscribe(
+        let registry_subscription = cx.subscribe_in(
            &LanguageModelRegistry::global(cx),
-            |this, _, event: &language_model::Event, cx| match event {
+            window,
+            |this, _, event: &language_model::Event, window, cx| match event {
                language_model::Event::AddedProvider(provider_id) => {
                    let provider = LanguageModelRegistry::read_global(cx).provider(provider_id);
                    if let Some(provider) = provider {
-                        this.add_provider_configuration_view(&provider, cx);
+                        this.add_provider_configuration_view(&provider, window, cx);
                    }
                }
                language_model::Event::RemovedProvider(provider_id) => {
@@ -37,14 +38,14 @@ impl AssistantConfiguration {
            configuration_views_by_provider: HashMap::default(),
            _registry_subscription: registry_subscription,
        };
-        this.build_provider_configuration_views(cx);
+        this.build_provider_configuration_views(window, cx);
        this
    }

-    fn build_provider_configuration_views(&mut self, cx: &mut ViewContext<Self>) {
+    fn build_provider_configuration_views(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let providers = LanguageModelRegistry::read_global(cx).providers();
        for provider in providers {
-            self.add_provider_configuration_view(&provider, cx);
+            self.add_provider_configuration_view(&provider, window, cx);
        }
    }

@@ -55,16 +56,17 @@ impl AssistantConfiguration {
    fn add_provider_configuration_view(
        &mut self,
        provider: &Arc<dyn LanguageModelProvider>,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
-        let configuration_view = provider.configuration_view(cx);
+        let configuration_view = provider.configuration_view(window, cx);
        self.configuration_views_by_provider
            .insert(provider.id(), configuration_view);
    }
 }

-impl FocusableView for AssistantConfiguration {
-    fn focus_handle(&self, _: &AppContext) -> FocusHandle {
+impl Focusable for AssistantConfiguration {
+    fn focus_handle(&self, _: &App) -> FocusHandle {
        self.focus_handle.clone()
    }
 }
@@ -79,7 +81,7 @@ impl AssistantConfiguration {
    fn render_provider_configuration(
        &mut self,
        provider: &Arc<dyn LanguageModelProvider>,
-        cx: &mut ViewContext<Self>,
+        cx: &mut Context<Self>,
    ) -> impl IntoElement {
        let provider_id = provider.id().0.clone();
        let provider_name = provider.name().0.clone();
@@ -107,7 +109,7 @@ impl AssistantConfiguration {
                                .layer(ElevationIndex::ModalSurface)
                                .on_click(cx.listener({
                                    let provider = provider.clone();
-                                    move |_this, _event, cx| {
+                                    move |_this, _event, _window, cx| {
                                        cx.emit(AssistantConfigurationEvent::NewThread(
                                            provider.clone(),
                                        ))
@@ -135,7 +137,7 @@ impl AssistantConfiguration {
 }

 impl Render for AssistantConfiguration {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let providers = LanguageModelRegistry::read_global(cx).providers();

        v_flex()
@@ -152,9 +154,7 @@ impl Render for AssistantConfiguration {
                        .icon(IconName::Book)
                        .icon_size(IconSize::Small)
                        .icon_position(IconPosition::Start)
-                        .on_click(|_event, cx| {
-                            cx.dispatch_action(DeployPromptLibrary.boxed_clone())
-                        }),
+                        .on_click(|_event, _window, cx| cx.dispatch_action(&DeployPromptLibrary)),
                ),
            )
            .child(
--- a/crates/assistant2/src/assistant_model_selector.rs
+++ b/crates/assistant2/src/assistant_model_selector.rs
@@ -1,6 +1,6 @@
 use assistant_settings::AssistantSettings;
 use fs::Fs;
-use gpui::{FocusHandle, View};
+use gpui::{Entity, FocusHandle, SharedString};
 use language_model::LanguageModelRegistry;
 use language_model_selector::{LanguageModelSelector, LanguageModelSelectorPopoverMenu};
 use settings::update_settings_file;
@@ -10,7 +10,7 @@ use ui::{prelude::*, ButtonLike, PopoverMenuHandle, Tooltip};
 use crate::ToggleModelSelector;

 pub struct AssistantModelSelector {
-    selector: View<LanguageModelSelector>,
+    selector: Entity<LanguageModelSelector>,
    menu_handle: PopoverMenuHandle<LanguageModelSelector>,
    focus_handle: FocusHandle,
 }
@@ -20,10 +20,11 @@ impl AssistantModelSelector {
        fs: Arc<dyn Fs>,
        menu_handle: PopoverMenuHandle<LanguageModelSelector>,
        focus_handle: FocusHandle,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Self {
        Self {
-            selector: cx.new_view(|cx| {
+            selector: cx.new(|cx| {
                let fs = fs.clone();
                LanguageModelSelector::new(
                    move |model, cx| {
@@ -33,6 +34,7 @@ impl AssistantModelSelector {
                            move |settings, _cx| settings.set_model(model.clone()),
                        );
                    },
+                    window,
                    cx,
                )
            }),
@@ -43,9 +45,13 @@ impl AssistantModelSelector {
 }

 impl Render for AssistantModelSelector {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let active_model = LanguageModelRegistry::read_global(cx).active_model();
        let focus_handle = self.focus_handle.clone();
+        let model_name = match active_model {
+            Some(model) => model.name().0,
+            _ => SharedString::from("No model selected"),
+        };

        LanguageModelSelectorPopoverMenu::new(
            self.selector.clone(),
@@ -55,23 +61,13 @@ impl Render for AssistantModelSelector {
                    h_flex()
                        .gap_0p5()
                        .child(
-                            div()
-                                .overflow_x_hidden()
-                                .flex_grow()
-                                .whitespace_nowrap()
-                                .child(match active_model {
-                                    Some(model) => h_flex()
-                                        .child(
-                                            Label::new(model.name().0)
-                                                .size(LabelSize::Small)
-                                                .color(Color::Muted),
-                                        )
-                                        .into_any_element(),
-                                    _ => Label::new("No model selected")
-                                        .size(LabelSize::Small)
-                                        .color(Color::Muted)
-                                        .into_any_element(),
-                                }),
+                            div().max_w_32().child(
+                                Label::new(model_name)
+                                    .size(LabelSize::Small)
+                                    .color(Color::Muted)
+                                    .text_ellipsis()
+                                    .into_any_element(),
+                            ),
                        )
                        .child(
                            Icon::new(IconName::ChevronDown)
@@ -79,8 +75,14 @@ impl Render for AssistantModelSelector {
                                .size(IconSize::XSmall),
                        ),
                )
-                .tooltip(move |cx| {
-                    Tooltip::for_action_in("Change Model", &ToggleModelSelector, &focus_handle, cx)
+                .tooltip(move |window, cx| {
+                    Tooltip::for_action_in(
+                        "Change Model",
+                        &ToggleModelSelector,
+                        &focus_handle,
+                        window,
+                        cx,
+                    )
                }),
        )
        .with_handle(self.menu_handle.clone())
--- a/crates/assistant2/src/assistant_panel.rs
+++ b/crates/assistant2/src/assistant_panel.rs
--- a/crates/assistant2/src/buffer_codegen.rs
+++ b/crates/assistant2/src/buffer_codegen.rs
@@ -6,7 +6,7 @@ use client::telemetry::Telemetry;
 use collections::HashSet;
 use editor::{Anchor, AnchorRangeExt, MultiBuffer, MultiBufferSnapshot, ToOffset as _, ToPoint};
 use futures::{channel::mpsc, future::LocalBoxFuture, join, SinkExt, Stream, StreamExt};
-use gpui::{AppContext, Context as _, EventEmitter, Model, ModelContext, Subscription, Task};
+use gpui::{App, AppContext as _, Context, Entity, EventEmitter, Subscription, Task};
 use language::{Buffer, IndentKind, Point, TransactionId};
 use language_model::{
    LanguageModel, LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage,
@@ -32,14 +32,14 @@ use streaming_diff::{CharOperation, LineDiff, LineOperation, StreamingDiff};
 use telemetry_events::{AssistantEvent, AssistantKind, AssistantPhase};

 pub struct BufferCodegen {
-    alternatives: Vec<Model<CodegenAlternative>>,
+    alternatives: Vec<Entity<CodegenAlternative>>,
    pub active_alternative: usize,
    seen_alternatives: HashSet<usize>,
    subscriptions: Vec<Subscription>,
-    buffer: Model<MultiBuffer>,
+    buffer: Entity<MultiBuffer>,
    range: Range<Anchor>,
    initial_transaction_id: Option<TransactionId>,
-    context_store: Model<ContextStore>,
+    context_store: Entity<ContextStore>,
    telemetry: Arc<Telemetry>,
    builder: Arc<PromptBuilder>,
    pub is_insertion: bool,
@@ -47,15 +47,15 @@ pub struct BufferCodegen {

 impl BufferCodegen {
    pub fn new(
-        buffer: Model<MultiBuffer>,
+        buffer: Entity<MultiBuffer>,
        range: Range<Anchor>,
        initial_transaction_id: Option<TransactionId>,
-        context_store: Model<ContextStore>,
+        context_store: Entity<ContextStore>,
        telemetry: Arc<Telemetry>,
        builder: Arc<PromptBuilder>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Self {
-        let codegen = cx.new_model(|cx| {
+        let codegen = cx.new(|cx| {
            CodegenAlternative::new(
                buffer.clone(),
                range.clone(),
@@ -83,7 +83,7 @@ impl BufferCodegen {
        this
    }

-    fn subscribe_to_alternative(&mut self, cx: &mut ModelContext<Self>) {
+    fn subscribe_to_alternative(&mut self, cx: &mut Context<Self>) {
        let codegen = self.active_alternative().clone();
        self.subscriptions.clear();
        self.subscriptions
@@ -92,22 +92,22 @@ impl BufferCodegen {
            .push(cx.subscribe(&codegen, |_, _, event, cx| cx.emit(*event)));
    }

-    pub fn active_alternative(&self) -> &Model<CodegenAlternative> {
+    pub fn active_alternative(&self) -> &Entity<CodegenAlternative> {
        &self.alternatives[self.active_alternative]
    }

-    pub fn status<'a>(&self, cx: &'a AppContext) -> &'a CodegenStatus {
+    pub fn status<'a>(&self, cx: &'a App) -> &'a CodegenStatus {
        &self.active_alternative().read(cx).status
    }

-    pub fn alternative_count(&self, cx: &AppContext) -> usize {
+    pub fn alternative_count(&self, cx: &App) -> usize {
        LanguageModelRegistry::read_global(cx)
            .inline_alternative_models()
            .len()
            + 1
    }

-    pub fn cycle_prev(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn cycle_prev(&mut self, cx: &mut Context<Self>) {
        let next_active_ix = if self.active_alternative == 0 {
            self.alternatives.len() - 1
        } else {
@@ -116,12 +116,12 @@ impl BufferCodegen {
        self.activate(next_active_ix, cx);
    }

-    pub fn cycle_next(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn cycle_next(&mut self, cx: &mut Context<Self>) {
        let next_active_ix = (self.active_alternative + 1) % self.alternatives.len();
        self.activate(next_active_ix, cx);
    }

-    fn activate(&mut self, index: usize, cx: &mut ModelContext<Self>) {
+    fn activate(&mut self, index: usize, cx: &mut Context<Self>) {
        self.active_alternative()
            .update(cx, |codegen, cx| codegen.set_active(false, cx));
        self.seen_alternatives.insert(index);
@@ -132,7 +132,7 @@ impl BufferCodegen {
        cx.notify();
    }

-    pub fn start(&mut self, user_prompt: String, cx: &mut ModelContext<Self>) -> Result<()> {
+    pub fn start(&mut self, user_prompt: String, cx: &mut Context<Self>) -> Result<()> {
        let alternative_models = LanguageModelRegistry::read_global(cx)
            .inline_alternative_models()
            .to_vec();
@@ -143,7 +143,7 @@ impl BufferCodegen {
        self.alternatives.truncate(1);

        for _ in 0..alternative_models.len() {
-            self.alternatives.push(cx.new_model(|cx| {
+            self.alternatives.push(cx.new(|cx| {
                CodegenAlternative::new(
                    self.buffer.clone(),
                    self.range.clone(),
@@ -172,13 +172,13 @@ impl BufferCodegen {
        Ok(())
    }

-    pub fn stop(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn stop(&mut self, cx: &mut Context<Self>) {
        for codegen in &self.alternatives {
            codegen.update(cx, |codegen, cx| codegen.stop(cx));
        }
    }

-    pub fn undo(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn undo(&mut self, cx: &mut Context<Self>) {
        self.active_alternative()
            .update(cx, |codegen, cx| codegen.undo(cx));

@@ -190,27 +190,27 @@ impl BufferCodegen {
        });
    }

-    pub fn buffer(&self, cx: &AppContext) -> Model<MultiBuffer> {
+    pub fn buffer(&self, cx: &App) -> Entity<MultiBuffer> {
        self.active_alternative().read(cx).buffer.clone()
    }

-    pub fn old_buffer(&self, cx: &AppContext) -> Model<Buffer> {
+    pub fn old_buffer(&self, cx: &App) -> Entity<Buffer> {
        self.active_alternative().read(cx).old_buffer.clone()
    }

-    pub fn snapshot(&self, cx: &AppContext) -> MultiBufferSnapshot {
+    pub fn snapshot(&self, cx: &App) -> MultiBufferSnapshot {
        self.active_alternative().read(cx).snapshot.clone()
    }

-    pub fn edit_position(&self, cx: &AppContext) -> Option<Anchor> {
+    pub fn edit_position(&self, cx: &App) -> Option<Anchor> {
        self.active_alternative().read(cx).edit_position
    }

-    pub fn diff<'a>(&self, cx: &'a AppContext) -> &'a Diff {
+    pub fn diff<'a>(&self, cx: &'a App) -> &'a Diff {
        &self.active_alternative().read(cx).diff
    }

-    pub fn last_equal_ranges<'a>(&self, cx: &'a AppContext) -> &'a [Range<Anchor>] {
+    pub fn last_equal_ranges<'a>(&self, cx: &'a App) -> &'a [Range<Anchor>] {
        self.active_alternative().read(cx).last_equal_ranges()
    }
 }
@@ -218,8 +218,8 @@ impl BufferCodegen {
 impl EventEmitter<CodegenEvent> for BufferCodegen {}

 pub struct CodegenAlternative {
-    buffer: Model<MultiBuffer>,
-    old_buffer: Model<Buffer>,
+    buffer: Entity<MultiBuffer>,
+    old_buffer: Entity<Buffer>,
    snapshot: MultiBufferSnapshot,
    edit_position: Option<Anchor>,
    range: Range<Anchor>,
@@ -228,7 +228,7 @@ pub struct CodegenAlternative {
    status: CodegenStatus,
    generation: Task<()>,
    diff: Diff,
-    context_store: Option<Model<ContextStore>>,
+    context_store: Option<Entity<ContextStore>>,
    telemetry: Option<Arc<Telemetry>>,
    _subscription: gpui::Subscription,
    builder: Arc<PromptBuilder>,
@@ -245,27 +245,27 @@ impl EventEmitter<CodegenEvent> for CodegenAlternative {}

 impl CodegenAlternative {
    pub fn new(
-        buffer: Model<MultiBuffer>,
+        buffer: Entity<MultiBuffer>,
        range: Range<Anchor>,
        active: bool,
-        context_store: Option<Model<ContextStore>>,
+        context_store: Option<Entity<ContextStore>>,
        telemetry: Option<Arc<Telemetry>>,
        builder: Arc<PromptBuilder>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Self {
        let snapshot = buffer.read(cx).snapshot(cx);

-        let (old_excerpt, _) = snapshot
+        let (old_buffer, _, _) = snapshot
            .range_to_buffer_ranges(range.clone())
            .pop()
            .unwrap();
-        let old_buffer = cx.new_model(|cx| {
-            let text = old_excerpt.buffer().as_rope().clone();
-            let line_ending = old_excerpt.buffer().line_ending();
-            let language = old_excerpt.buffer().language().cloned();
+        let old_buffer = cx.new(|cx| {
+            let text = old_buffer.as_rope().clone();
+            let line_ending = old_buffer.line_ending();
+            let language = old_buffer.language().cloned();
            let language_registry = buffer
                .read(cx)
-                .buffer(old_excerpt.buffer_id())
+                .buffer(old_buffer.remote_id())
                .unwrap()
                .read(cx)
                .language_registry();
@@ -303,7 +303,7 @@ impl CodegenAlternative {
        }
    }

-    pub fn set_active(&mut self, active: bool, cx: &mut ModelContext<Self>) {
+    pub fn set_active(&mut self, active: bool, cx: &mut Context<Self>) {
        if active != self.active {
            self.active = active;

@@ -327,9 +327,9 @@ impl CodegenAlternative {

    fn handle_buffer_event(
        &mut self,
-        _buffer: Model<MultiBuffer>,
+        _buffer: Entity<MultiBuffer>,
        event: &multi_buffer::Event,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        if let multi_buffer::Event::TransactionUndone { transaction_id } = event {
            if self.transformation_transaction_id == Some(*transaction_id) {
@@ -348,7 +348,7 @@ impl CodegenAlternative {
        &mut self,
        user_prompt: String,
        model: Arc<dyn LanguageModel>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Result<()> {
        if let Some(transformation_transaction_id) = self.transformation_transaction_id.take() {
            self.buffer.update(cx, |buffer, cx| {
@@ -375,11 +375,7 @@ impl CodegenAlternative {
        Ok(())
    }

-    fn build_request(
-        &self,
-        user_prompt: String,
-        cx: &mut AppContext,
-    ) -> Result<LanguageModelRequest> {
+    fn build_request(&self, user_prompt: String, cx: &mut App) -> Result<LanguageModelRequest> {
        let buffer = self.buffer.read(cx).snapshot(cx);
        let language = buffer.language_at(self.range.start);
        let language_name = if let Some(language) = language.as_ref() {
@@ -438,7 +434,7 @@ impl CodegenAlternative {
        model_provider_id: String,
        model_api_key: Option<String>,
        stream: impl 'static + Future<Output = Result<LanguageModelTextStream>>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let start_time = Instant::now();
        let snapshot = self.snapshot.clone();
@@ -475,7 +471,7 @@ impl CodegenAlternative {
            let ranges = snapshot.range_to_buffer_ranges(self.range.clone());
            ranges
                .first()
-                .and_then(|(excerpt, _)| excerpt.buffer().language())
+                .and_then(|(buffer, _, _)| buffer.language())
                .map(|language| language.name())
        };

@@ -696,7 +692,7 @@ impl CodegenAlternative {
        cx.notify();
    }

-    pub fn stop(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn stop(&mut self, cx: &mut Context<Self>) {
        self.last_equal_ranges.clear();
        if self.diff.is_empty() {
            self.status = CodegenStatus::Idle;
@@ -708,7 +704,7 @@ impl CodegenAlternative {
        cx.notify();
    }

-    pub fn undo(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn undo(&mut self, cx: &mut Context<Self>) {
        self.buffer.update(cx, |buffer, cx| {
            if let Some(transaction_id) = self.transformation_transaction_id.take() {
                buffer.undo_transaction(transaction_id, cx);
@@ -720,7 +716,7 @@ impl CodegenAlternative {
    fn apply_edits(
        &mut self,
        edits: impl IntoIterator<Item = (Range<Anchor>, String)>,
-        cx: &mut ModelContext<CodegenAlternative>,
+        cx: &mut Context<CodegenAlternative>,
    ) {
        let transaction = self.buffer.update(cx, |buffer, cx| {
            // Avoid grouping assistant edits with user edits.
@@ -747,7 +743,7 @@ impl CodegenAlternative {
    fn reapply_line_based_diff(
        &mut self,
        line_operations: impl IntoIterator<Item = LineOperation>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let old_snapshot = self.snapshot.clone();
        let old_range = self.range.to_point(&old_snapshot);
@@ -803,7 +799,7 @@ impl CodegenAlternative {
        }
    }

-    fn reapply_batch_diff(&mut self, cx: &mut ModelContext<Self>) -> Task<()> {
+    fn reapply_batch_diff(&mut self, cx: &mut Context<Self>) -> Task<()> {
        let old_snapshot = self.snapshot.clone();
        let old_range = self.range.to_point(&old_snapshot);
        let new_snapshot = self.buffer.read(cx).snapshot(cx);
@@ -1081,15 +1077,14 @@ mod tests {
                }
            }
        "};
-        let buffer =
-            cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
-        let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
+        let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
+        let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
        let range = buffer.read_with(cx, |buffer, cx| {
            let snapshot = buffer.snapshot(cx);
            snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(4, 5))
        });
        let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-        let codegen = cx.new_model(|cx| {
+        let codegen = cx.new(|cx| {
            CodegenAlternative::new(
                buffer.clone(),
                range.clone(),
@@ -1146,15 +1141,14 @@ mod tests {
                le
            }
        "};
-        let buffer =
-            cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
-        let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
+        let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
+        let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
        let range = buffer.read_with(cx, |buffer, cx| {
            let snapshot = buffer.snapshot(cx);
            snapshot.anchor_before(Point::new(1, 6))..snapshot.anchor_after(Point::new(1, 6))
        });
        let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-        let codegen = cx.new_model(|cx| {
+        let codegen = cx.new(|cx| {
            CodegenAlternative::new(
                buffer.clone(),
                range.clone(),
@@ -1214,15 +1208,14 @@ mod tests {
            "  \n",
            "}\n" //
        );
-        let buffer =
-            cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
-        let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
+        let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
+        let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
        let range = buffer.read_with(cx, |buffer, cx| {
            let snapshot = buffer.snapshot(cx);
            snapshot.anchor_before(Point::new(1, 2))..snapshot.anchor_after(Point::new(1, 2))
        });
        let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-        let codegen = cx.new_model(|cx| {
+        let codegen = cx.new(|cx| {
            CodegenAlternative::new(
                buffer.clone(),
                range.clone(),
@@ -1282,14 +1275,14 @@ mod tests {
            \t}
            }
        "};
-        let buffer = cx.new_model(|cx| Buffer::local(text, cx));
-        let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
+        let buffer = cx.new(|cx| Buffer::local(text, cx));
+        let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
        let range = buffer.read_with(cx, |buffer, cx| {
            let snapshot = buffer.snapshot(cx);
            snapshot.anchor_before(Point::new(0, 0))..snapshot.anchor_after(Point::new(4, 2))
        });
        let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-        let codegen = cx.new_model(|cx| {
+        let codegen = cx.new(|cx| {
            CodegenAlternative::new(
                buffer.clone(),
                range.clone(),
@@ -1337,15 +1330,14 @@ mod tests {
                let x = 0;
            }
        "};
-        let buffer =
-            cx.new_model(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
-        let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
+        let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
+        let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
        let range = buffer.read_with(cx, |buffer, cx| {
            let snapshot = buffer.snapshot(cx);
            snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(1, 14))
        });
        let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-        let codegen = cx.new_model(|cx| {
+        let codegen = cx.new(|cx| {
            CodegenAlternative::new(
                buffer.clone(),
                range.clone(),
@@ -1432,7 +1424,7 @@ mod tests {
    }

    fn simulate_response_stream(
-        codegen: Model<CodegenAlternative>,
+        codegen: Entity<CodegenAlternative>,
        cx: &mut TestAppContext,
    ) -> mpsc::UnboundedSender<String> {
        let (chunks_tx, chunks_rx) = mpsc::unbounded();
--- a/crates/assistant2/src/context.rs
+++ b/crates/assistant2/src/context.rs
@@ -2,7 +2,7 @@ use std::path::Path;
 use std::rc::Rc;

 use file_icons::FileIcons;
-use gpui::{AppContext, Model, SharedString};
+use gpui::{App, Entity, SharedString};
 use language::Buffer;
 use language_model::{LanguageModelRequestMessage, MessageContent};
 use serde::{Deserialize, Serialize};
@@ -63,14 +63,14 @@ impl ContextKind {
 }

 #[derive(Debug)]
-pub enum Context {
+pub enum AssistantContext {
    File(FileContext),
    Directory(DirectoryContext),
    FetchedUrl(FetchedUrlContext),
    Thread(ThreadContext),
 }

-impl Context {
+impl AssistantContext {
    pub fn id(&self) -> ContextId {
        match self {
            Self::File(file) => file.id,
@@ -107,7 +107,7 @@ pub struct FetchedUrlContext {
 #[derive(Debug)]
 pub struct ThreadContext {
    pub id: ContextId,
-    pub thread: Model<Thread>,
+    pub thread: Entity<Thread>,
    pub text: SharedString,
 }

@@ -117,13 +117,13 @@ pub struct ThreadContext {
 #[derive(Debug, Clone)]
 pub struct ContextBuffer {
    pub id: BufferId,
-    pub buffer: Model<Buffer>,
+    pub buffer: Entity<Buffer>,
    pub version: clock::Global,
    pub text: SharedString,
 }

-impl Context {
-    pub fn snapshot(&self, cx: &AppContext) -> Option<ContextSnapshot> {
+impl AssistantContext {
+    pub fn snapshot(&self, cx: &App) -> Option<ContextSnapshot> {
        match &self {
            Self::File(file_context) => file_context.snapshot(cx),
            Self::Directory(directory_context) => Some(directory_context.snapshot()),
@@ -134,7 +134,7 @@ impl Context {
 }

 impl FileContext {
-    pub fn snapshot(&self, cx: &AppContext) -> Option<ContextSnapshot> {
+    pub fn snapshot(&self, cx: &App) -> Option<ContextSnapshot> {
        let buffer = self.context_buffer.buffer.read(cx);
        let path = buffer_path_log_err(buffer)?;
        let full_path: SharedString = path.to_string_lossy().into_owned().into();
@@ -221,7 +221,7 @@ impl FetchedUrlContext {
 }

 impl ThreadContext {
-    pub fn snapshot(&self, cx: &AppContext) -> ContextSnapshot {
+    pub fn snapshot(&self, cx: &App) -> ContextSnapshot {
        let thread = self.thread.read(cx);
        ContextSnapshot {
            id: self.id,
--- a/crates/assistant2/src/context_picker.rs
+++ b/crates/assistant2/src/context_picker.rs
@@ -6,11 +6,10 @@ mod thread_context_picker;
 use std::path::PathBuf;
 use std::sync::Arc;

+use anyhow::{anyhow, Result};
 use editor::Editor;
 use file_context_picker::render_file_context_entry;
-use gpui::{
-    AppContext, DismissEvent, EventEmitter, FocusHandle, FocusableView, View, WeakModel, WeakView,
-};
+use gpui::{App, DismissEvent, Entity, EventEmitter, FocusHandle, Focusable, Task, WeakEntity};
 use project::ProjectPath;
 use thread_context_picker::{render_thread_context_entry, ThreadContextEntry};
 use ui::{prelude::*, ContextMenu, ContextMenuEntry, ContextMenuItem};
@@ -33,33 +32,38 @@ pub enum ConfirmBehavior {

 #[derive(Debug, Clone)]
 enum ContextPickerMode {
-    Default(View<ContextMenu>),
-    File(View<FileContextPicker>),
-    Directory(View<DirectoryContextPicker>),
-    Fetch(View<FetchContextPicker>),
-    Thread(View<ThreadContextPicker>),
+    Default(Entity<ContextMenu>),
+    File(Entity<FileContextPicker>),
+    Directory(Entity<DirectoryContextPicker>),
+    Fetch(Entity<FetchContextPicker>),
+    Thread(Entity<ThreadContextPicker>),
 }

 pub(super) struct ContextPicker {
    mode: ContextPickerMode,
-    workspace: WeakView<Workspace>,
-    editor: WeakView<Editor>,
-    context_store: WeakModel<ContextStore>,
-    thread_store: Option<WeakModel<ThreadStore>>,
+    workspace: WeakEntity<Workspace>,
+    editor: WeakEntity<Editor>,
+    context_store: WeakEntity<ContextStore>,
+    thread_store: Option<WeakEntity<ThreadStore>>,
    confirm_behavior: ConfirmBehavior,
 }

 impl ContextPicker {
    pub fn new(
-        workspace: WeakView<Workspace>,
-        thread_store: Option<WeakModel<ThreadStore>>,
-        context_store: WeakModel<ContextStore>,
-        editor: WeakView<Editor>,
+        workspace: WeakEntity<Workspace>,
+        thread_store: Option<WeakEntity<ThreadStore>>,
+        context_store: WeakEntity<ContextStore>,
+        editor: WeakEntity<Editor>,
        confirm_behavior: ConfirmBehavior,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
        ContextPicker {
-            mode: ContextPickerMode::Default(ContextMenu::build(cx, |menu, _cx| menu)),
+            mode: ContextPickerMode::Default(ContextMenu::build(
+                window,
+                cx,
+                |menu, _window, _cx| menu,
+            )),
            workspace,
            context_store,
            thread_store,
@@ -68,15 +72,15 @@ impl ContextPicker {
        }
    }

-    pub fn init(&mut self, cx: &mut ViewContext<Self>) {
-        self.mode = ContextPickerMode::Default(self.build_menu(cx));
+    pub fn init(&mut self, window: &mut Window, cx: &mut Context<Self>) {
+        self.mode = ContextPickerMode::Default(self.build_menu(window, cx));
        cx.notify();
    }

-    fn build_menu(&mut self, cx: &mut ViewContext<Self>) -> View<ContextMenu> {
-        let context_picker = cx.view().clone();
+    fn build_menu(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<ContextMenu> {
+        let context_picker = cx.entity().clone();

-        let menu = ContextMenu::build(cx, move |menu, cx| {
+        let menu = ContextMenu::build(window, cx, move |menu, _window, cx| {
            let recent = self.recent_entries(cx);
            let has_recent = !recent.is_empty();
            let recent_entries = recent
@@ -95,7 +99,7 @@ impl ContextPicker {

            let menu = menu
                .when(has_recent, |menu| {
-                    menu.custom_row(|_| {
+                    menu.custom_row(|_, _| {
                        div()
                            .mb_1()
                            .child(
@@ -113,8 +117,10 @@ impl ContextPicker {

                    ContextMenuEntry::new(kind.label())
                        .icon(kind.icon())
-                        .handler(move |cx| {
-                            context_picker.update(cx, |this, cx| this.select_kind(kind, cx))
+                        .icon_size(IconSize::XSmall)
+                        .icon_color(Color::Muted)
+                        .handler(move |window, cx| {
+                            context_picker.update(cx, |this, cx| this.select_kind(kind, window, cx))
                        })
                }));

@@ -137,52 +143,56 @@ impl ContextPicker {
        self.thread_store.is_some()
    }

-    fn select_kind(&mut self, kind: ContextKind, cx: &mut ViewContext<Self>) {
-        let context_picker = cx.view().downgrade();
+    fn select_kind(&mut self, kind: ContextKind, window: &mut Window, cx: &mut Context<Self>) {
+        let context_picker = cx.entity().downgrade();

        match kind {
            ContextKind::File => {
-                self.mode = ContextPickerMode::File(cx.new_view(|cx| {
+                self.mode = ContextPickerMode::File(cx.new(|cx| {
                    FileContextPicker::new(
                        context_picker.clone(),
                        self.workspace.clone(),
                        self.editor.clone(),
                        self.context_store.clone(),
                        self.confirm_behavior,
+                        window,
                        cx,
                    )
                }));
            }
            ContextKind::Directory => {
-                self.mode = ContextPickerMode::Directory(cx.new_view(|cx| {
+                self.mode = ContextPickerMode::Directory(cx.new(|cx| {
                    DirectoryContextPicker::new(
                        context_picker.clone(),
                        self.workspace.clone(),
                        self.context_store.clone(),
                        self.confirm_behavior,
+                        window,
                        cx,
                    )
                }));
            }
            ContextKind::FetchedUrl => {
-                self.mode = ContextPickerMode::Fetch(cx.new_view(|cx| {
+                self.mode = ContextPickerMode::Fetch(cx.new(|cx| {
                    FetchContextPicker::new(
                        context_picker.clone(),
                        self.workspace.clone(),
                        self.context_store.clone(),
                        self.confirm_behavior,
+                        window,
                        cx,
                    )
                }));
            }
            ContextKind::Thread => {
                if let Some(thread_store) = self.thread_store.as_ref() {
-                    self.mode = ContextPickerMode::Thread(cx.new_view(|cx| {
+                    self.mode = ContextPickerMode::Thread(cx.new(|cx| {
                        ThreadContextPicker::new(
                            thread_store.clone(),
                            context_picker.clone(),
                            self.context_store.clone(),
                            self.confirm_behavior,
+                            window,
                            cx,
                        )
                    }));
@@ -191,12 +201,12 @@ impl ContextPicker {
        }

        cx.notify();
-        cx.focus_self();
+        cx.focus_self(window);
    }

    fn recent_menu_item(
        &self,
-        context_picker: View<ContextPicker>,
+        context_picker: Entity<ContextPicker>,
        ix: usize,
        entry: RecentEntry,
    ) -> ContextMenuItem {
@@ -209,7 +219,7 @@ impl ContextPicker {
                let path = project_path.path.clone();

                ContextMenuItem::custom_entry(
-                    move |cx| {
+                    move |_window, cx| {
                        render_file_context_entry(
                            ElementId::NamedInteger("ctx-recent".into(), ix),
                            &path,
@@ -219,9 +229,9 @@ impl ContextPicker {
                        )
                        .into_any()
                    },
-                    move |cx| {
+                    move |window, cx| {
                        context_picker.update(cx, |this, cx| {
-                            this.add_recent_file(project_path.clone(), cx);
+                            this.add_recent_file(project_path.clone(), window, cx);
                        })
                    },
                )
@@ -231,13 +241,14 @@ impl ContextPicker {
                let view_thread = thread.clone();

                ContextMenuItem::custom_entry(
-                    move |cx| {
+                    move |_window, cx| {
                        render_thread_context_entry(&view_thread, context_store.clone(), cx)
                            .into_any()
                    },
-                    move |cx| {
+                    move |_window, cx| {
                        context_picker.update(cx, |this, cx| {
-                            this.add_recent_thread(thread.clone(), cx);
+                            this.add_recent_thread(thread.clone(), cx)
+                                .detach_and_log_err(cx);
                        })
                    },
                )
@@ -245,7 +256,12 @@ impl ContextPicker {
        }
    }

-    fn add_recent_file(&self, project_path: ProjectPath, cx: &mut ViewContext<Self>) {
+    fn add_recent_file(
+        &self,
+        project_path: ProjectPath,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        let Some(context_store) = self.context_store.upgrade() else {
            return;
        };
@@ -254,34 +270,43 @@ impl ContextPicker {
            context_store.add_file_from_path(project_path.clone(), cx)
        });

-        cx.spawn(|_, mut cx| async move { task.await.notify_async_err(&mut cx) })
-            .detach();
+        cx.spawn_in(window, |_, mut cx| async move {
+            task.await.notify_async_err(&mut cx)
+        })
+        .detach();

        cx.notify();
    }

-    fn add_recent_thread(&self, thread: ThreadContextEntry, cx: &mut ViewContext<Self>) {
+    fn add_recent_thread(
+        &self,
+        thread: ThreadContextEntry,
+        cx: &mut Context<Self>,
+    ) -> Task<Result<()>> {
        let Some(context_store) = self.context_store.upgrade() else {
-            return;
+            return Task::ready(Err(anyhow!("context store not available")));
        };

-        let Some(thread) = self
+        let Some(thread_store) = self
            .thread_store
-            .clone()
-            .and_then(|this| this.upgrade())
-            .and_then(|this| this.update(cx, |this, cx| this.open_thread(&thread.id, cx)))
+            .as_ref()
+            .and_then(|thread_store| thread_store.upgrade())
        else {
-            return;
+            return Task::ready(Err(anyhow!("thread store not available")));
        };

-        context_store.update(cx, |context_store, cx| {
-            context_store.add_thread(thread, cx);
-        });
+        let open_thread_task = thread_store.update(cx, |this, cx| this.open_thread(&thread.id, cx));
+        cx.spawn(|this, mut cx| async move {
+            let thread = open_thread_task.await?;
+            context_store.update(&mut cx, |context_store, cx| {
+                context_store.add_thread(thread, cx);
+            })?;

-        cx.notify();
+            this.update(&mut cx, |_this, cx| cx.notify())
+        })
    }

-    fn recent_entries(&self, cx: &mut WindowContext) -> Vec<RecentEntry> {
+    fn recent_entries(&self, cx: &mut App) -> Vec<RecentEntry> {
        let Some(workspace) = self.workspace.upgrade().map(|w| w.read(cx)) else {
            return vec![];
        };
@@ -332,19 +357,17 @@ impl ContextPicker {
            return recent;
        };

-        thread_store.update(cx, |thread_store, cx| {
+        thread_store.update(cx, |thread_store, _cx| {
            recent.extend(
                thread_store
-                    .threads(cx)
+                    .threads()
                    .into_iter()
-                    .filter(|thread| !current_threads.contains(thread.read(cx).id()))
+                    .filter(|thread| !current_threads.contains(&thread.id))
                    .take(2)
                    .map(|thread| {
-                        let thread = thread.read(cx);
-
                        RecentEntry::Thread(ThreadContextEntry {
-                            id: thread.id().clone(),
-                            summary: thread.summary_or_default(),
+                            id: thread.id,
+                            summary: thread.summary,
                        })
                    }),
            )
@@ -353,7 +376,7 @@ impl ContextPicker {
        recent
    }

-    fn active_singleton_buffer_path(workspace: &Workspace, cx: &AppContext) -> Option<PathBuf> {
+    fn active_singleton_buffer_path(workspace: &Workspace, cx: &App) -> Option<PathBuf> {
        let active_item = workspace.active_item(cx)?;

        let editor = active_item.to_any().downcast::<Editor>().ok()?.read(cx);
@@ -366,8 +389,8 @@ impl ContextPicker {

 impl EventEmitter<DismissEvent> for ContextPicker {}

-impl FocusableView for ContextPicker {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl Focusable for ContextPicker {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        match &self.mode {
            ContextPickerMode::Default(menu) => menu.focus_handle(cx),
            ContextPickerMode::File(file_picker) => file_picker.focus_handle(cx),
@@ -379,7 +402,7 @@ impl FocusableView for ContextPicker {
 }

 impl Render for ContextPicker {
-    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        v_flex()
            .w(px(400.))
            .min_w(px(400.))
--- a/crates/assistant2/src/context_picker/directory_context_picker.rs
+++ b/crates/assistant2/src/context_picker/directory_context_picker.rs
@@ -3,7 +3,7 @@ use std::sync::atomic::AtomicBool;
 use std::sync::Arc;

 use fuzzy::PathMatch;
-use gpui::{AppContext, DismissEvent, FocusHandle, FocusableView, Task, View, WeakModel, WeakView};
+use gpui::{App, DismissEvent, Entity, FocusHandle, Focusable, Task, WeakEntity};
 use picker::{Picker, PickerDelegate};
 use project::{PathMatchCandidateSet, ProjectPath, WorktreeId};
 use ui::{prelude::*, ListItem};
@@ -14,16 +14,17 @@ use crate::context_picker::{ConfirmBehavior, ContextPicker};
 use crate::context_store::ContextStore;

 pub struct DirectoryContextPicker {
-    picker: View<Picker<DirectoryContextPickerDelegate>>,
+    picker: Entity<Picker<DirectoryContextPickerDelegate>>,
 }

 impl DirectoryContextPicker {
    pub fn new(
-        context_picker: WeakView<ContextPicker>,
-        workspace: WeakView<Workspace>,
-        context_store: WeakModel<ContextStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        workspace: WeakEntity<Workspace>,
+        context_store: WeakEntity<ContextStore>,
        confirm_behavior: ConfirmBehavior,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
        let delegate = DirectoryContextPickerDelegate::new(
            context_picker,
@@ -31,28 +32,28 @@ impl DirectoryContextPicker {
            context_store,
            confirm_behavior,
        );
-        let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
+        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        Self { picker }
    }
 }

-impl FocusableView for DirectoryContextPicker {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl Focusable for DirectoryContextPicker {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.picker.focus_handle(cx)
    }
 }

 impl Render for DirectoryContextPicker {
-    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        self.picker.clone()
    }
 }

 pub struct DirectoryContextPickerDelegate {
-    context_picker: WeakView<ContextPicker>,
-    workspace: WeakView<Workspace>,
-    context_store: WeakModel<ContextStore>,
+    context_picker: WeakEntity<ContextPicker>,
+    workspace: WeakEntity<Workspace>,
+    context_store: WeakEntity<ContextStore>,
    confirm_behavior: ConfirmBehavior,
    matches: Vec<PathMatch>,
    selected_index: usize,
@@ -60,9 +61,9 @@ pub struct DirectoryContextPickerDelegate {

 impl DirectoryContextPickerDelegate {
    pub fn new(
-        context_picker: WeakView<ContextPicker>,
-        workspace: WeakView<Workspace>,
-        context_store: WeakModel<ContextStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        workspace: WeakEntity<Workspace>,
+        context_store: WeakEntity<ContextStore>,
        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        Self {
@@ -79,8 +80,8 @@ impl DirectoryContextPickerDelegate {
        &mut self,
        query: String,
        cancellation_flag: Arc<AtomicBool>,
-        workspace: &View<Workspace>,
-        cx: &mut ViewContext<Picker<Self>>,
+        workspace: &Entity<Workspace>,
+        cx: &mut Context<Picker<Self>>,
    ) -> Task<Vec<PathMatch>> {
        if query.is_empty() {
            let workspace = workspace.read(cx);
@@ -146,15 +147,25 @@ impl PickerDelegate for DirectoryContextPickerDelegate {
        self.selected_index
    }

-    fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
+    fn set_selected_index(
+        &mut self,
+        ix: usize,
+        _window: &mut Window,
+        _cx: &mut Context<Picker<Self>>,
+    ) {
        self.selected_index = ix;
    }

-    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+    fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
        "Search folders…".into()
    }

-    fn update_matches(&mut self, query: String, cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
+    fn update_matches(
+        &mut self,
+        query: String,
+        _window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
+    ) -> Task<()> {
        let Some(workspace) = self.workspace.upgrade() else {
            return Task::ready(());
        };
@@ -173,7 +184,7 @@ impl PickerDelegate for DirectoryContextPickerDelegate {
        })
    }

-    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
        let Some(mat) = self.matches.get(self.selected_index) else {
            return;
        };
@@ -194,19 +205,19 @@ impl PickerDelegate for DirectoryContextPickerDelegate {
        };

        let confirm_behavior = self.confirm_behavior;
-        cx.spawn(|this, mut cx| async move {
+        cx.spawn_in(window, |this, mut cx| async move {
            match task.await.notify_async_err(&mut cx) {
                None => anyhow::Ok(()),
-                Some(()) => this.update(&mut cx, |this, cx| match confirm_behavior {
+                Some(()) => this.update_in(&mut cx, |this, window, cx| match confirm_behavior {
                    ConfirmBehavior::KeepOpen => {}
-                    ConfirmBehavior::Close => this.delegate.dismissed(cx),
+                    ConfirmBehavior::Close => this.delegate.dismissed(window, cx),
                }),
            }
        })
        .detach_and_log_err(cx);
    }

-    fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
+    fn dismissed(&mut self, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
        self.context_picker
            .update(cx, |_, cx| {
                cx.emit(DismissEvent);
@@ -218,7 +229,8 @@ impl PickerDelegate for DirectoryContextPickerDelegate {
        &self,
        ix: usize,
        selected: bool,
-        cx: &mut ViewContext<Picker<Self>>,
+        _window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
    ) -> Option<Self::ListItem> {
        let path_match = &self.matches[ix];
        let directory_name = path_match.path.to_string_lossy().to_string();
@@ -234,7 +246,12 @@ impl PickerDelegate for DirectoryContextPickerDelegate {
            ListItem::new(ix)
                .inset(true)
                .toggle_state(selected)
-                .child(h_flex().gap_2().child(Label::new(directory_name)))
+                .start_slot(
+                    Icon::new(IconName::Folder)
+                        .size(IconSize::XSmall)
+                        .color(Color::Muted),
+                )
+                .child(Label::new(directory_name))
                .when(added, |el| {
                    el.end_slot(
                        h_flex()
--- a/crates/assistant2/src/context_picker/fetch_context_picker.rs
+++ b/crates/assistant2/src/context_picker/fetch_context_picker.rs
@@ -4,27 +4,28 @@ use std::sync::Arc;

 use anyhow::{bail, Context as _, Result};
 use futures::AsyncReadExt as _;
-use gpui::{AppContext, DismissEvent, FocusHandle, FocusableView, Task, View, WeakModel, WeakView};
+use gpui::{App, DismissEvent, Entity, FocusHandle, Focusable, Task, WeakEntity};
 use html_to_markdown::{convert_html_to_markdown, markdown, TagHandler};
 use http_client::{AsyncBody, HttpClientWithUrl};
 use picker::{Picker, PickerDelegate};
-use ui::{prelude::*, ListItem, ViewContext};
+use ui::{prelude::*, Context, ListItem, Window};
 use workspace::Workspace;

 use crate::context_picker::{ConfirmBehavior, ContextPicker};
 use crate::context_store::ContextStore;

 pub struct FetchContextPicker {
-    picker: View<Picker<FetchContextPickerDelegate>>,
+    picker: Entity<Picker<FetchContextPickerDelegate>>,
 }

 impl FetchContextPicker {
    pub fn new(
-        context_picker: WeakView<ContextPicker>,
-        workspace: WeakView<Workspace>,
-        context_store: WeakModel<ContextStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        workspace: WeakEntity<Workspace>,
+        context_store: WeakEntity<ContextStore>,
        confirm_behavior: ConfirmBehavior,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
        let delegate = FetchContextPickerDelegate::new(
            context_picker,
@@ -32,20 +33,20 @@ impl FetchContextPicker {
            context_store,
            confirm_behavior,
        );
-        let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
+        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        Self { picker }
    }
 }

-impl FocusableView for FetchContextPicker {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl Focusable for FetchContextPicker {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.picker.focus_handle(cx)
    }
 }

 impl Render for FetchContextPicker {
-    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        self.picker.clone()
    }
 }
@@ -58,18 +59,18 @@ enum ContentType {
 }

 pub struct FetchContextPickerDelegate {
-    context_picker: WeakView<ContextPicker>,
-    workspace: WeakView<Workspace>,
-    context_store: WeakModel<ContextStore>,
+    context_picker: WeakEntity<ContextPicker>,
+    workspace: WeakEntity<Workspace>,
+    context_store: WeakEntity<ContextStore>,
    confirm_behavior: ConfirmBehavior,
    url: String,
 }

 impl FetchContextPickerDelegate {
    pub fn new(
-        context_picker: WeakView<ContextPicker>,
-        workspace: WeakView<Workspace>,
-        context_store: WeakModel<ContextStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        workspace: WeakEntity<Workspace>,
+        context_store: WeakEntity<ContextStore>,
        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        FetchContextPickerDelegate {
@@ -166,7 +167,7 @@ impl PickerDelegate for FetchContextPickerDelegate {
        }
    }

-    fn no_matches_text(&self, _cx: &mut WindowContext) -> SharedString {
+    fn no_matches_text(&self, _window: &mut Window, _cx: &mut App) -> SharedString {
        "Enter the URL that you would like to fetch".into()
    }

@@ -174,19 +175,30 @@ impl PickerDelegate for FetchContextPickerDelegate {
        0
    }

-    fn set_selected_index(&mut self, _ix: usize, _cx: &mut ViewContext<Picker<Self>>) {}
+    fn set_selected_index(
+        &mut self,
+        _ix: usize,
+        _window: &mut Window,
+        _cx: &mut Context<Picker<Self>>,
+    ) {
+    }

-    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+    fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
        "Enter a URL…".into()
    }

-    fn update_matches(&mut self, query: String, _cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
+    fn update_matches(
+        &mut self,
+        query: String,
+        _window: &mut Window,
+        _cx: &mut Context<Picker<Self>>,
+    ) -> Task<()> {
        self.url = query;

        Task::ready(())
    }

-    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
        let Some(workspace) = self.workspace.upgrade() else {
            return;
        };
@@ -194,13 +206,13 @@ impl PickerDelegate for FetchContextPickerDelegate {
        let http_client = workspace.read(cx).client().http_client().clone();
        let url = self.url.clone();
        let confirm_behavior = self.confirm_behavior;
-        cx.spawn(|this, mut cx| async move {
+        cx.spawn_in(window, |this, mut cx| async move {
            let text = cx
                .background_executor()
                .spawn(Self::build_message(http_client, url.clone()))
                .await?;

-            this.update(&mut cx, |this, cx| {
+            this.update_in(&mut cx, |this, window, cx| {
                this.delegate
                    .context_store
                    .update(cx, |context_store, _cx| {
@@ -209,7 +221,7 @@ impl PickerDelegate for FetchContextPickerDelegate {

                match confirm_behavior {
                    ConfirmBehavior::KeepOpen => {}
-                    ConfirmBehavior::Close => this.delegate.dismissed(cx),
+                    ConfirmBehavior::Close => this.delegate.dismissed(window, cx),
                }

                anyhow::Ok(())
@@ -220,7 +232,7 @@ impl PickerDelegate for FetchContextPickerDelegate {
        .detach_and_log_err(cx);
    }

-    fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
+    fn dismissed(&mut self, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
        self.context_picker
            .update(cx, |_, cx| {
                cx.emit(DismissEvent);
@@ -232,7 +244,8 @@ impl PickerDelegate for FetchContextPickerDelegate {
        &self,
        ix: usize,
        selected: bool,
-        cx: &mut ViewContext<Picker<Self>>,
+        _window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
    ) -> Option<Self::ListItem> {
        let added = self.context_store.upgrade().map_or(false, |context_store| {
            context_store.read(cx).includes_url(&self.url).is_some()
--- a/crates/assistant2/src/context_picker/file_context_picker.rs
+++ b/crates/assistant2/src/context_picker/file_context_picker.rs
@@ -11,8 +11,8 @@ use editor::{Anchor, Editor, FoldPlaceholder, ToPoint};
 use file_icons::FileIcons;
 use fuzzy::PathMatch;
 use gpui::{
-    AnyElement, AppContext, DismissEvent, Empty, FocusHandle, FocusableView, Stateful, Task, View,
-    WeakModel, WeakView,
+    AnyElement, App, DismissEvent, Empty, Entity, FocusHandle, Focusable, Stateful, Task,
+    WeakEntity,
 };
 use multi_buffer::{MultiBufferPoint, MultiBufferRow};
 use picker::{Picker, PickerDelegate};
@@ -27,17 +27,18 @@ use crate::context_picker::{ConfirmBehavior, ContextPicker};
 use crate::context_store::{ContextStore, FileInclusion};

 pub struct FileContextPicker {
-    picker: View<Picker<FileContextPickerDelegate>>,
+    picker: Entity<Picker<FileContextPickerDelegate>>,
 }

 impl FileContextPicker {
    pub fn new(
-        context_picker: WeakView<ContextPicker>,
-        workspace: WeakView<Workspace>,
-        editor: WeakView<Editor>,
-        context_store: WeakModel<ContextStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        workspace: WeakEntity<Workspace>,
+        editor: WeakEntity<Editor>,
+        context_store: WeakEntity<ContextStore>,
        confirm_behavior: ConfirmBehavior,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
        let delegate = FileContextPickerDelegate::new(
            context_picker,
@@ -46,29 +47,29 @@ impl FileContextPicker {
            context_store,
            confirm_behavior,
        );
-        let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
+        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        Self { picker }
    }
 }

-impl FocusableView for FileContextPicker {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl Focusable for FileContextPicker {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.picker.focus_handle(cx)
    }
 }

 impl Render for FileContextPicker {
-    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        self.picker.clone()
    }
 }

 pub struct FileContextPickerDelegate {
-    context_picker: WeakView<ContextPicker>,
-    workspace: WeakView<Workspace>,
-    editor: WeakView<Editor>,
-    context_store: WeakModel<ContextStore>,
+    context_picker: WeakEntity<ContextPicker>,
+    workspace: WeakEntity<Workspace>,
+    editor: WeakEntity<Editor>,
+    context_store: WeakEntity<ContextStore>,
    confirm_behavior: ConfirmBehavior,
    matches: Vec<PathMatch>,
    selected_index: usize,
@@ -76,10 +77,10 @@ pub struct FileContextPickerDelegate {

 impl FileContextPickerDelegate {
    pub fn new(
-        context_picker: WeakView<ContextPicker>,
-        workspace: WeakView<Workspace>,
-        editor: WeakView<Editor>,
-        context_store: WeakModel<ContextStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        workspace: WeakEntity<Workspace>,
+        editor: WeakEntity<Editor>,
+        context_store: WeakEntity<ContextStore>,
        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        Self {
@@ -97,8 +98,9 @@ impl FileContextPickerDelegate {
        &mut self,
        query: String,
        cancellation_flag: Arc<AtomicBool>,
-        workspace: &View<Workspace>,
-        cx: &mut ViewContext<Picker<Self>>,
+        workspace: &Entity<Workspace>,
+
+        cx: &mut Context<Picker<Self>>,
    ) -> Task<Vec<PathMatch>> {
        if query.is_empty() {
            let workspace = workspace.read(cx);
@@ -122,7 +124,7 @@ impl FileContextPickerDelegate {
            let file_matches = project.worktrees(cx).flat_map(|worktree| {
                let worktree = worktree.read(cx);
                let path_prefix: Arc<str> = worktree.root_name().into();
-                worktree.files(true, 0).map(move |entry| PathMatch {
+                worktree.files(false, 0).map(move |entry| PathMatch {
                    score: 0.,
                    positions: Vec::new(),
                    worktree_id: worktree.id().to_usize(),
@@ -180,22 +182,32 @@ impl PickerDelegate for FileContextPickerDelegate {
        self.selected_index
    }

-    fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
+    fn set_selected_index(
+        &mut self,
+        ix: usize,
+        _window: &mut Window,
+        _cx: &mut Context<Picker<Self>>,
+    ) {
        self.selected_index = ix;
    }

-    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+    fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
        "Search files…".into()
    }

-    fn update_matches(&mut self, query: String, cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
+    fn update_matches(
+        &mut self,
+        query: String,
+        window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
+    ) -> Task<()> {
        let Some(workspace) = self.workspace.upgrade() else {
            return Task::ready(());
        };

        let search_task = self.search(query, Arc::<AtomicBool>::default(), &workspace, cx);

-        cx.spawn(|this, mut cx| async move {
+        cx.spawn_in(window, |this, mut cx| async move {
            // TODO: This should be probably be run in the background.
            let paths = search_task.await;

@@ -206,7 +218,7 @@ impl PickerDelegate for FileContextPickerDelegate {
        })
    }

-    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
        let Some(mat) = self.matches.get(self.selected_index) else {
            return;
        };
@@ -231,7 +243,7 @@ impl PickerDelegate for FileContextPickerDelegate {
        };

        editor.update(cx, |editor, cx| {
-            editor.transact(cx, |editor, cx| {
+            editor.transact(window, cx, |editor, window, cx| {
                // Move empty selections left by 1 column to select the `@`s, so they get overwritten when we insert.
                {
                    let mut selections = editor.selections.all::<MultiBufferPoint>(cx);
@@ -247,7 +259,9 @@ impl PickerDelegate for FileContextPickerDelegate {
                        }
                    }

-                    editor.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
+                    editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
+                        s.select(selections)
+                    });
                }

                let start_anchors = {
@@ -260,7 +274,7 @@ impl PickerDelegate for FileContextPickerDelegate {
                        .collect::<Vec<_>>()
                };

-                editor.insert(&full_path, cx);
+                editor.insert(&full_path, window, cx);

                let end_anchors = {
                    let snapshot = editor.buffer().read(cx).snapshot(cx);
@@ -272,14 +286,15 @@ impl PickerDelegate for FileContextPickerDelegate {
                        .collect::<Vec<_>>()
                };

-                editor.insert("\n", cx); // Needed to end the fold
+                editor.insert("\n", window, cx); // Needed to end the fold

                let placeholder = FoldPlaceholder {
                    render: render_fold_icon_button(IconName::File, file_name.into()),
                    ..Default::default()
                };

-                let render_trailer = move |_row, _unfold, _cx: &mut WindowContext| Empty.into_any();
+                let render_trailer =
+                    move |_row, _unfold, _window: &mut Window, _cx: &mut App| Empty.into_any();

                let buffer = editor.buffer().read(cx).snapshot(cx);
                let mut rows_to_fold = BTreeSet::new();
@@ -300,7 +315,7 @@ impl PickerDelegate for FileContextPickerDelegate {
                editor.insert_creases(crease_iter, cx);

                for buffer_row in rows_to_fold {
-                    editor.fold_at(&FoldAt { buffer_row }, cx);
+                    editor.fold_at(&FoldAt { buffer_row }, window, cx);
                }
            });
        });
@@ -316,19 +331,19 @@ impl PickerDelegate for FileContextPickerDelegate {
        };

        let confirm_behavior = self.confirm_behavior;
-        cx.spawn(|this, mut cx| async move {
+        cx.spawn_in(window, |this, mut cx| async move {
            match task.await.notify_async_err(&mut cx) {
                None => anyhow::Ok(()),
-                Some(()) => this.update(&mut cx, |this, cx| match confirm_behavior {
+                Some(()) => this.update_in(&mut cx, |this, window, cx| match confirm_behavior {
                    ConfirmBehavior::KeepOpen => {}
-                    ConfirmBehavior::Close => this.delegate.dismissed(cx),
+                    ConfirmBehavior::Close => this.delegate.dismissed(window, cx),
                }),
            }
        })
        .detach_and_log_err(cx);
    }

-    fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
+    fn dismissed(&mut self, _: &mut Window, cx: &mut Context<Picker<Self>>) {
        self.context_picker
            .update(cx, |_, cx| {
                cx.emit(DismissEvent);
@@ -340,7 +355,8 @@ impl PickerDelegate for FileContextPickerDelegate {
        &self,
        ix: usize,
        selected: bool,
-        cx: &mut ViewContext<Picker<Self>>,
+        _window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
    ) -> Option<Self::ListItem> {
        let path_match = &self.matches[ix];

@@ -363,8 +379,8 @@ pub fn render_file_context_entry(
    id: ElementId,
    path: &Path,
    path_prefix: &Arc<str>,
-    context_store: WeakModel<ContextStore>,
-    cx: &WindowContext,
+    context_store: WeakEntity<ContextStore>,
+    cx: &App,
 ) -> Stateful<Div> {
    let (file_name, directory) = if path == Path::new("") {
        (SharedString::from(path_prefix.clone()), None)
@@ -396,12 +412,12 @@ pub fn render_file_context_entry(

    h_flex()
        .id(id)
-        .gap_1()
+        .gap_1p5()
        .w_full()
-        .child(file_icon.size(IconSize::Small))
+        .child(file_icon.size(IconSize::Small).color(Color::Muted))
        .child(
            h_flex()
-                .gap_2()
+                .gap_1()
                .child(Label::new(file_name))
                .children(directory.map(|directory| {
                    Label::new(directory)
@@ -409,11 +425,12 @@ pub fn render_file_context_entry(
                        .color(Color::Muted)
                })),
        )
-        .child(div().w_full())
        .when_some(added, |el, added| match added {
            FileInclusion::Direct(_) => el.child(
                h_flex()
-                    .gap_1()
+                    .w_full()
+                    .justify_end()
+                    .gap_0p5()
                    .child(
                        Icon::new(IconName::Check)
                            .size(IconSize::Small)
@@ -426,7 +443,9 @@ pub fn render_file_context_entry(

                el.child(
                    h_flex()
-                        .gap_1()
+                        .w_full()
+                        .justify_end()
+                        .gap_0p5()
                        .child(
                            Icon::new(IconName::Check)
                                .size(IconSize::Small)
@@ -434,7 +453,7 @@ pub fn render_file_context_entry(
                        )
                        .child(Label::new("Included").size(LabelSize::Small)),
                )
-                .tooltip(move |cx| Tooltip::text(format!("in {dir_name}"), cx))
+                .tooltip(Tooltip::text(format!("in {dir_name}")))
            }
        })
 }
@@ -442,8 +461,8 @@ pub fn render_file_context_entry(
 fn render_fold_icon_button(
    icon: IconName,
    label: SharedString,
-) -> Arc<dyn Send + Sync + Fn(FoldId, Range<Anchor>, &mut WindowContext) -> AnyElement> {
-    Arc::new(move |fold_id, _fold_range, _cx| {
+) -> Arc<dyn Send + Sync + Fn(FoldId, Range<Anchor>, &mut Window, &mut App) -> AnyElement> {
+    Arc::new(move |fold_id, _fold_range, _window, _cx| {
        ButtonLike::new(fold_id)
            .style(ButtonStyle::Filled)
            .layer(ElevationIndex::ElevatedSurface)
@@ -458,13 +477,14 @@ fn fold_toggle(
 ) -> impl Fn(
    MultiBufferRow,
    bool,
-    Arc<dyn Fn(bool, &mut WindowContext) + Send + Sync>,
-    &mut WindowContext,
+    Arc<dyn Fn(bool, &mut Window, &mut App) + Send + Sync>,
+    &mut Window,
+    &mut App,
 ) -> AnyElement {
-    move |row, is_folded, fold, _cx| {
+    move |row, is_folded, fold, _window, _cx| {
        Disclosure::new((name, row.0 as u64), !is_folded)
            .toggle_state(is_folded)
-            .on_click(move |_e, cx| fold(!is_folded, cx))
+            .on_click(move |_e, window, cx| fold(!is_folded, window, cx))
            .into_any_element()
    }
 }
--- a/crates/assistant2/src/context_picker/thread_context_picker.rs
+++ b/crates/assistant2/src/context_picker/thread_context_picker.rs
@@ -1,7 +1,7 @@
 use std::sync::Arc;

 use fuzzy::StringMatchCandidate;
-use gpui::{AppContext, DismissEvent, FocusHandle, FocusableView, Task, View, WeakModel, WeakView};
+use gpui::{App, DismissEvent, Entity, FocusHandle, Focusable, Task, WeakEntity};
 use picker::{Picker, PickerDelegate};
 use ui::{prelude::*, ListItem};

@@ -11,16 +11,17 @@ use crate::thread::ThreadId;
 use crate::thread_store::ThreadStore;

 pub struct ThreadContextPicker {
-    picker: View<Picker<ThreadContextPickerDelegate>>,
+    picker: Entity<Picker<ThreadContextPickerDelegate>>,
 }

 impl ThreadContextPicker {
    pub fn new(
-        thread_store: WeakModel<ThreadStore>,
-        context_picker: WeakView<ContextPicker>,
-        context_store: WeakModel<context_store::ContextStore>,
+        thread_store: WeakEntity<ThreadStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        context_store: WeakEntity<context_store::ContextStore>,
        confirm_behavior: ConfirmBehavior,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
        let delegate = ThreadContextPickerDelegate::new(
            thread_store,
@@ -28,20 +29,20 @@ impl ThreadContextPicker {
            context_store,
            confirm_behavior,
        );
-        let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
+        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        ThreadContextPicker { picker }
    }
 }

-impl FocusableView for ThreadContextPicker {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl Focusable for ThreadContextPicker {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.picker.focus_handle(cx)
    }
 }

 impl Render for ThreadContextPicker {
-    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        self.picker.clone()
    }
 }
@@ -53,9 +54,9 @@ pub struct ThreadContextEntry {
 }

 pub struct ThreadContextPickerDelegate {
-    thread_store: WeakModel<ThreadStore>,
-    context_picker: WeakView<ContextPicker>,
-    context_store: WeakModel<context_store::ContextStore>,
+    thread_store: WeakEntity<ThreadStore>,
+    context_picker: WeakEntity<ContextPicker>,
+    context_store: WeakEntity<context_store::ContextStore>,
    confirm_behavior: ConfirmBehavior,
    matches: Vec<ThreadContextEntry>,
    selected_index: usize,
@@ -63,9 +64,9 @@ pub struct ThreadContextPickerDelegate {

 impl ThreadContextPickerDelegate {
    pub fn new(
-        thread_store: WeakModel<ThreadStore>,
-        context_picker: WeakView<ContextPicker>,
-        context_store: WeakModel<context_store::ContextStore>,
+        thread_store: WeakEntity<ThreadStore>,
+        context_picker: WeakEntity<ContextPicker>,
+        context_store: WeakEntity<context_store::ContextStore>,
        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        ThreadContextPickerDelegate {
@@ -90,22 +91,31 @@ impl PickerDelegate for ThreadContextPickerDelegate {
        self.selected_index
    }

-    fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
+    fn set_selected_index(
+        &mut self,
+        ix: usize,
+        _window: &mut Window,
+        _cx: &mut Context<Picker<Self>>,
+    ) {
        self.selected_index = ix;
    }

-    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+    fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
        "Search threads…".into()
    }

-    fn update_matches(&mut self, query: String, cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
-        let Ok(threads) = self.thread_store.update(cx, |this, cx| {
-            this.threads(cx)
+    fn update_matches(
+        &mut self,
+        query: String,
+        window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
+    ) -> Task<()> {
+        let Ok(threads) = self.thread_store.update(cx, |this, _cx| {
+            this.threads()
                .into_iter()
-                .map(|thread| {
-                    let id = thread.read(cx).id().clone();
-                    let summary = thread.read(cx).summary_or_default();
-                    ThreadContextEntry { id, summary }
+                .map(|thread| ThreadContextEntry {
+                    id: thread.id,
+                    summary: thread.summary,
                })
                .collect::<Vec<_>>()
        }) else {
@@ -139,7 +149,7 @@ impl PickerDelegate for ThreadContextPickerDelegate {
            }
        });

-        cx.spawn(|this, mut cx| async move {
+        cx.spawn_in(window, |this, mut cx| async move {
            let matches = search_task.await;
            this.update(&mut cx, |this, cx| {
                this.delegate.matches = matches;
@@ -150,7 +160,7 @@ impl PickerDelegate for ThreadContextPickerDelegate {
        })
    }

-    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
        let Some(entry) = self.matches.get(self.selected_index) else {
            return;
        };
@@ -159,22 +169,26 @@ impl PickerDelegate for ThreadContextPickerDelegate {
            return;
        };

-        let Some(thread) = thread_store.update(cx, |this, cx| this.open_thread(&entry.id, cx))
-        else {
-            return;
-        };
+        let open_thread_task = thread_store.update(cx, |this, cx| this.open_thread(&entry.id, cx));

-        self.context_store
-            .update(cx, |context_store, cx| context_store.add_thread(thread, cx))
-            .ok();
+        cx.spawn_in(window, |this, mut cx| async move {
+            let thread = open_thread_task.await?;
+            this.update_in(&mut cx, |this, window, cx| {
+                this.delegate
+                    .context_store
+                    .update(cx, |context_store, cx| context_store.add_thread(thread, cx))
+                    .ok();

-        match self.confirm_behavior {
-            ConfirmBehavior::KeepOpen => {}
-            ConfirmBehavior::Close => self.dismissed(cx),
-        }
+                match this.delegate.confirm_behavior {
+                    ConfirmBehavior::KeepOpen => {}
+                    ConfirmBehavior::Close => this.delegate.dismissed(window, cx),
+                }
+            })
+        })
+        .detach_and_log_err(cx);
    }

-    fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
+    fn dismissed(&mut self, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
        self.context_picker
            .update(cx, |_, cx| {
                cx.emit(DismissEvent);
@@ -186,7 +200,8 @@ impl PickerDelegate for ThreadContextPickerDelegate {
        &self,
        ix: usize,
        selected: bool,
-        cx: &mut ViewContext<Picker<Self>>,
+        _window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
    ) -> Option<Self::ListItem> {
        let thread = &self.matches[ix];

@@ -198,17 +213,21 @@ impl PickerDelegate for ThreadContextPickerDelegate {

 pub fn render_thread_context_entry(
    thread: &ThreadContextEntry,
-    context_store: WeakModel<ContextStore>,
-    cx: &mut WindowContext,
+    context_store: WeakEntity<ContextStore>,
+    cx: &mut App,
 ) -> Div {
    let added = context_store.upgrade().map_or(false, |ctx_store| {
        ctx_store.read(cx).includes_thread(&thread.id).is_some()
    });

    h_flex()
-        .gap_1()
+        .gap_1p5()
        .w_full()
-        .child(Icon::new(IconName::MessageCircle).size(IconSize::Small))
+        .child(
+            Icon::new(IconName::MessageCircle)
+                .size(IconSize::XSmall)
+                .color(Color::Muted),
+        )
        .child(Label::new(thread.summary.clone()))
        .child(div().w_full())
        .when(added, |el| {
--- a/crates/assistant2/src/context_store.rs
+++ b/crates/assistant2/src/context_store.rs
@@ -4,7 +4,7 @@ use std::sync::Arc;
 use anyhow::{anyhow, bail, Result};
 use collections::{BTreeMap, HashMap, HashSet};
 use futures::{self, future, Future, FutureExt};
-use gpui::{AppContext, AsyncAppContext, Model, ModelContext, SharedString, Task, WeakView};
+use gpui::{App, AsyncApp, Context, Entity, SharedString, Task, WeakEntity};
 use language::Buffer;
 use project::{ProjectPath, Worktree};
 use rope::Rope;
@@ -12,15 +12,15 @@ use text::BufferId;
 use workspace::Workspace;

 use crate::context::{
-    Context, ContextBuffer, ContextId, ContextSnapshot, DirectoryContext, FetchedUrlContext,
-    FileContext, ThreadContext,
+    AssistantContext, ContextBuffer, ContextId, ContextSnapshot, DirectoryContext,
+    FetchedUrlContext, FileContext, ThreadContext,
 };
 use crate::context_strip::SuggestedContext;
 use crate::thread::{Thread, ThreadId};

 pub struct ContextStore {
-    workspace: WeakView<Workspace>,
-    context: Vec<Context>,
+    workspace: WeakEntity<Workspace>,
+    context: Vec<AssistantContext>,
    // TODO: If an EntityId is used for all context types (like BufferId), can remove ContextId.
    next_context_id: ContextId,
    files: BTreeMap<BufferId, ContextId>,
@@ -30,7 +30,7 @@ pub struct ContextStore {
 }

 impl ContextStore {
-    pub fn new(workspace: WeakView<Workspace>) -> Self {
+    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
        Self {
            workspace,
            context: Vec::new(),
@@ -42,16 +42,13 @@ impl ContextStore {
        }
    }

-    pub fn snapshot<'a>(
-        &'a self,
-        cx: &'a AppContext,
-    ) -> impl Iterator<Item = ContextSnapshot> + 'a {
+    pub fn snapshot<'a>(&'a self, cx: &'a App) -> impl Iterator<Item = ContextSnapshot> + 'a {
        self.context()
            .iter()
            .flat_map(|context| context.snapshot(cx))
    }

-    pub fn context(&self) -> &Vec<Context> {
+    pub fn context(&self) -> &Vec<AssistantContext> {
        &self.context
    }

@@ -66,7 +63,7 @@ impl ContextStore {
    pub fn add_file_from_path(
        &mut self,
        project_path: ProjectPath,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Task<Result<()>> {
        let workspace = self.workspace.clone();

@@ -122,8 +119,8 @@ impl ContextStore {

    pub fn add_file_from_buffer(
        &mut self,
-        buffer_model: Model<Buffer>,
-        cx: &mut ModelContext<Self>,
+        buffer_model: Entity<Buffer>,
+        cx: &mut Context<Self>,
    ) -> Task<Result<()>> {
        cx.spawn(|this, mut cx| async move {
            let (buffer_info, text_task) = this.update(&mut cx, |_, cx| {
@@ -153,13 +150,13 @@ impl ContextStore {
        let id = self.next_context_id.post_inc();
        self.files.insert(context_buffer.id, id);
        self.context
-            .push(Context::File(FileContext { id, context_buffer }));
+            .push(AssistantContext::File(FileContext { id, context_buffer }));
    }

    pub fn add_directory(
        &mut self,
        project_path: ProjectPath,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Task<Result<()>> {
        let workspace = self.workspace.clone();
        let Some(project) = workspace
@@ -244,14 +241,15 @@ impl ContextStore {
        let id = self.next_context_id.post_inc();
        self.directories.insert(path.to_path_buf(), id);

-        self.context.push(Context::Directory(DirectoryContext::new(
-            id,
-            path,
-            context_buffers,
-        )));
+        self.context
+            .push(AssistantContext::Directory(DirectoryContext::new(
+                id,
+                path,
+                context_buffers,
+            )));
    }

-    pub fn add_thread(&mut self, thread: Model<Thread>, cx: &mut ModelContext<Self>) {
+    pub fn add_thread(&mut self, thread: Entity<Thread>, cx: &mut Context<Self>) {
        if let Some(context_id) = self.includes_thread(&thread.read(cx).id()) {
            self.remove_context(context_id);
        } else {
@@ -259,13 +257,13 @@ impl ContextStore {
        }
    }

-    fn insert_thread(&mut self, thread: Model<Thread>, cx: &AppContext) {
+    fn insert_thread(&mut self, thread: Entity<Thread>, cx: &App) {
        let id = self.next_context_id.post_inc();
        let text = thread.read(cx).text().into();

        self.threads.insert(thread.read(cx).id().clone(), id);
        self.context
-            .push(Context::Thread(ThreadContext { id, thread, text }));
+            .push(AssistantContext::Thread(ThreadContext { id, thread, text }));
    }

    pub fn add_fetched_url(&mut self, url: String, text: impl Into<SharedString>) {
@@ -278,17 +276,18 @@ impl ContextStore {
        let id = self.next_context_id.post_inc();

        self.fetched_urls.insert(url.clone(), id);
-        self.context.push(Context::FetchedUrl(FetchedUrlContext {
-            id,
-            url: url.into(),
-            text: text.into(),
-        }));
+        self.context
+            .push(AssistantContext::FetchedUrl(FetchedUrlContext {
+                id,
+                url: url.into(),
+                text: text.into(),
+            }));
    }

    pub fn accept_suggested_context(
        &mut self,
        suggested: &SuggestedContext,
-        cx: &mut ModelContext<ContextStore>,
+        cx: &mut Context<ContextStore>,
    ) -> Task<Result<()>> {
        match suggested {
            SuggestedContext::File {
@@ -315,16 +314,16 @@ impl ContextStore {
        };

        match self.context.remove(ix) {
-            Context::File(_) => {
+            AssistantContext::File(_) => {
                self.files.retain(|_, context_id| *context_id != id);
            }
-            Context::Directory(_) => {
+            AssistantContext::Directory(_) => {
                self.directories.retain(|_, context_id| *context_id != id);
            }
-            Context::FetchedUrl(_) => {
+            AssistantContext::FetchedUrl(_) => {
                self.fetched_urls.retain(|_, context_id| *context_id != id);
            }
-            Context::Thread(_) => {
+            AssistantContext::Thread(_) => {
                self.threads.retain(|_, context_id| *context_id != id);
            }
        }
@@ -343,10 +342,10 @@ impl ContextStore {

    /// Returns whether this file path is already included directly in the context, or if it will be
    /// included in the context via a directory.
-    pub fn will_include_file_path(&self, path: &Path, cx: &AppContext) -> Option<FileInclusion> {
+    pub fn will_include_file_path(&self, path: &Path, cx: &App) -> Option<FileInclusion> {
        if !self.files.is_empty() {
            let found_file_context = self.context.iter().find(|context| match &context {
-                Context::File(file_context) => {
+                AssistantContext::File(file_context) => {
                    let buffer = file_context.context_buffer.buffer.read(cx);
                    if let Some(file_path) = buffer_path_log_err(buffer) {
                        *file_path == *path
@@ -393,7 +392,7 @@ impl ContextStore {
    }

    /// Replaces the context that matches the ID of the new context, if any match.
-    fn replace_context(&mut self, new_context: Context) {
+    fn replace_context(&mut self, new_context: AssistantContext) {
        let id = new_context.id();
        for context in self.context.iter_mut() {
            if context.id() == id {
@@ -403,15 +402,17 @@ impl ContextStore {
        }
    }

-    pub fn file_paths(&self, cx: &AppContext) -> HashSet<PathBuf> {
+    pub fn file_paths(&self, cx: &App) -> HashSet<PathBuf> {
        self.context
            .iter()
            .filter_map(|context| match context {
-                Context::File(file) => {
+                AssistantContext::File(file) => {
                    let buffer = file.context_buffer.buffer.read(cx);
                    buffer_path_log_err(buffer).map(|p| p.to_path_buf())
                }
-                Context::Directory(_) | Context::FetchedUrl(_) | Context::Thread(_) => None,
+                AssistantContext::Directory(_)
+                | AssistantContext::FetchedUrl(_)
+                | AssistantContext::Thread(_) => None,
            })
            .collect()
    }
@@ -428,7 +429,7 @@ pub enum FileInclusion {

 // ContextBuffer without text.
 struct BufferInfo {
-    buffer_model: Model<Buffer>,
+    buffer_model: Entity<Buffer>,
    id: BufferId,
    version: clock::Global,
 }
@@ -444,9 +445,9 @@ fn make_context_buffer(info: BufferInfo, text: SharedString) -> ContextBuffer {

 fn collect_buffer_info_and_text(
    path: Arc<Path>,
-    buffer_model: Model<Buffer>,
+    buffer_model: Entity<Buffer>,
    buffer: &Buffer,
-    cx: AsyncAppContext,
+    cx: AsyncApp,
 ) -> (BufferInfo, Task<SharedString>) {
    let buffer_info = BufferInfo {
        id: buffer.remote_id(),
@@ -525,32 +526,32 @@ fn collect_files_in_path(worktree: &Worktree, path: &Path) -> Vec<Arc<Path>> {
 }

 pub fn refresh_context_store_text(
-    context_store: Model<ContextStore>,
-    cx: &AppContext,
+    context_store: Entity<ContextStore>,
+    cx: &App,
 ) -> impl Future<Output = ()> {
    let mut tasks = Vec::new();
    for context in &context_store.read(cx).context {
        match context {
-            Context::File(file_context) => {
+            AssistantContext::File(file_context) => {
                let context_store = context_store.clone();
                if let Some(task) = refresh_file_text(context_store, file_context, cx) {
                    tasks.push(task);
                }
            }
-            Context::Directory(directory_context) => {
+            AssistantContext::Directory(directory_context) => {
                let context_store = context_store.clone();
                if let Some(task) = refresh_directory_text(context_store, directory_context, cx) {
                    tasks.push(task);
                }
            }
-            Context::Thread(thread_context) => {
+            AssistantContext::Thread(thread_context) => {
                let context_store = context_store.clone();
                tasks.push(refresh_thread_text(context_store, thread_context, cx));
            }
            // Intentionally omit refreshing fetched URLs as it doesn't seem all that useful,
            // and doing the caching properly could be tricky (unless it's already handled by
            // the HttpClient?).
-            Context::FetchedUrl(_) => {}
+            AssistantContext::FetchedUrl(_) => {}
        }
    }

@@ -558,9 +559,9 @@ pub fn refresh_context_store_text(
 }

 fn refresh_file_text(
-    context_store: Model<ContextStore>,
+    context_store: Entity<ContextStore>,
    file_context: &FileContext,
-    cx: &AppContext,
+    cx: &App,
 ) -> Option<Task<()>> {
    let id = file_context.id;
    let task = refresh_context_buffer(&file_context.context_buffer, cx);
@@ -570,7 +571,7 @@ fn refresh_file_text(
            context_store
                .update(&mut cx, |context_store, _| {
                    let new_file_context = FileContext { id, context_buffer };
-                    context_store.replace_context(Context::File(new_file_context));
+                    context_store.replace_context(AssistantContext::File(new_file_context));
                })
                .ok();
        }))
@@ -580,9 +581,9 @@ fn refresh_file_text(
 }

 fn refresh_directory_text(
-    context_store: Model<ContextStore>,
+    context_store: Entity<ContextStore>,
    directory_context: &DirectoryContext,
-    cx: &AppContext,
+    cx: &App,
 ) -> Option<Task<()>> {
    let mut stale = false;
    let futures = directory_context
@@ -611,16 +612,16 @@ fn refresh_directory_text(
        context_store
            .update(&mut cx, |context_store, _| {
                let new_directory_context = DirectoryContext::new(id, &path, context_buffers);
-                context_store.replace_context(Context::Directory(new_directory_context));
+                context_store.replace_context(AssistantContext::Directory(new_directory_context));
            })
            .ok();
    }))
 }

 fn refresh_thread_text(
-    context_store: Model<ContextStore>,
+    context_store: Entity<ContextStore>,
    thread_context: &ThreadContext,
-    cx: &AppContext,
+    cx: &App,
 ) -> Task<()> {
    let id = thread_context.id;
    let thread = thread_context.thread.clone();
@@ -628,7 +629,11 @@ fn refresh_thread_text(
        context_store
            .update(&mut cx, |context_store, cx| {
                let text = thread.read(cx).text().into();
-                context_store.replace_context(Context::Thread(ThreadContext { id, thread, text }));
+                context_store.replace_context(AssistantContext::Thread(ThreadContext {
+                    id,
+                    thread,
+                    text,
+                }));
            })
            .ok();
    })
@@ -636,7 +641,7 @@ fn refresh_thread_text(

 fn refresh_context_buffer(
    context_buffer: &ContextBuffer,
-    cx: &AppContext,
+    cx: &App,
 ) -> Option<impl Future<Output = ContextBuffer>> {
    let buffer = context_buffer.buffer.read(cx);
    let path = buffer_path_log_err(buffer)?;
--- a/crates/assistant2/src/context_strip.rs
+++ b/crates/assistant2/src/context_strip.rs
@@ -4,8 +4,8 @@ use collections::HashSet;
 use editor::Editor;
 use file_icons::FileIcons;
 use gpui::{
-    AppContext, Bounds, DismissEvent, EventEmitter, FocusHandle, FocusableView, Model,
-    Subscription, View, WeakModel, WeakView,
+    App, Bounds, DismissEvent, Entity, EventEmitter, FocusHandle, Focusable, Subscription,
+    WeakEntity,
 };
 use itertools::Itertools;
 use language::Buffer;
@@ -24,34 +24,37 @@ use crate::{
 };

 pub struct ContextStrip {
-    context_store: Model<ContextStore>,
-    pub context_picker: View<ContextPicker>,
+    context_store: Entity<ContextStore>,
+    pub context_picker: Entity<ContextPicker>,
    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
    focus_handle: FocusHandle,
    suggest_context_kind: SuggestContextKind,
-    workspace: WeakView<Workspace>,
+    workspace: WeakEntity<Workspace>,
    _subscriptions: Vec<Subscription>,
    focused_index: Option<usize>,
    children_bounds: Option<Vec<Bounds<Pixels>>>,
 }

 impl ContextStrip {
+    #[allow(clippy::too_many_arguments)]
    pub fn new(
-        context_store: Model<ContextStore>,
-        workspace: WeakView<Workspace>,
-        editor: WeakView<Editor>,
-        thread_store: Option<WeakModel<ThreadStore>>,
+        context_store: Entity<ContextStore>,
+        workspace: WeakEntity<Workspace>,
+        editor: WeakEntity<Editor>,
+        thread_store: Option<WeakEntity<ThreadStore>>,
        context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
        suggest_context_kind: SuggestContextKind,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
-        let context_picker = cx.new_view(|cx| {
+        let context_picker = cx.new(|cx| {
            ContextPicker::new(
                workspace.clone(),
                thread_store.clone(),
                context_store.downgrade(),
                editor.clone(),
                ConfirmBehavior::KeepOpen,
+                window,
                cx,
            )
        });
@@ -59,9 +62,9 @@ impl ContextStrip {
        let focus_handle = cx.focus_handle();

        let subscriptions = vec![
-            cx.subscribe(&context_picker, Self::handle_context_picker_event),
-            cx.on_focus(&focus_handle, Self::handle_focus),
-            cx.on_blur(&focus_handle, Self::handle_blur),
+            cx.subscribe_in(&context_picker, window, Self::handle_context_picker_event),
+            cx.on_focus(&focus_handle, window, Self::handle_focus),
+            cx.on_blur(&focus_handle, window, Self::handle_blur),
        ];

        Self {
@@ -77,14 +80,14 @@ impl ContextStrip {
        }
    }

-    fn suggested_context(&self, cx: &ViewContext<Self>) -> Option<SuggestedContext> {
+    fn suggested_context(&self, cx: &Context<Self>) -> Option<SuggestedContext> {
        match self.suggest_context_kind {
            SuggestContextKind::File => self.suggested_file(cx),
            SuggestContextKind::Thread => self.suggested_thread(cx),
        }
    }

-    fn suggested_file(&self, cx: &ViewContext<Self>) -> Option<SuggestedContext> {
+    fn suggested_file(&self, cx: &Context<Self>) -> Option<SuggestedContext> {
        let workspace = self.workspace.upgrade()?;
        let active_item = workspace.read(cx).active_item(cx)?;

@@ -117,7 +120,7 @@ impl ContextStrip {
        })
    }

-    fn suggested_thread(&self, cx: &ViewContext<Self>) -> Option<SuggestedContext> {
+    fn suggested_thread(&self, cx: &Context<Self>) -> Option<SuggestedContext> {
        if !self.context_picker.read(cx).allow_threads() {
            return None;
        }
@@ -149,24 +152,25 @@ impl ContextStrip {

    fn handle_context_picker_event(
        &mut self,
-        _picker: View<ContextPicker>,
+        _picker: &Entity<ContextPicker>,
        _event: &DismissEvent,
-        cx: &mut ViewContext<Self>,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        cx.emit(ContextStripEvent::PickerDismissed);
    }

-    fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
+    fn handle_focus(&mut self, _window: &mut Window, cx: &mut Context<Self>) {
        self.focused_index = self.last_pill_index();
        cx.notify();
    }

-    fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
+    fn handle_blur(&mut self, _window: &mut Window, cx: &mut Context<Self>) {
        self.focused_index = None;
        cx.notify();
    }

-    fn focus_left(&mut self, _: &FocusLeft, cx: &mut ViewContext<Self>) {
+    fn focus_left(&mut self, _: &FocusLeft, _window: &mut Window, cx: &mut Context<Self>) {
        self.focused_index = match self.focused_index {
            Some(index) if index > 0 => Some(index - 1),
            _ => self.last_pill_index(),
@@ -175,7 +179,7 @@ impl ContextStrip {
        cx.notify();
    }

-    fn focus_right(&mut self, _: &FocusRight, cx: &mut ViewContext<Self>) {
+    fn focus_right(&mut self, _: &FocusRight, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(last_index) = self.last_pill_index() else {
            return;
        };
@@ -188,7 +192,7 @@ impl ContextStrip {
        cx.notify();
    }

-    fn focus_up(&mut self, _: &FocusUp, cx: &mut ViewContext<Self>) {
+    fn focus_up(&mut self, _: &FocusUp, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(focused_index) = self.focused_index else {
            return;
        };
@@ -206,7 +210,7 @@ impl ContextStrip {
        cx.notify();
    }

-    fn focus_down(&mut self, _: &FocusDown, cx: &mut ViewContext<Self>) {
+    fn focus_down(&mut self, _: &FocusDown, _window: &mut Window, cx: &mut Context<Self>) {
        let Some(focused_index) = self.focused_index else {
            return;
        };
@@ -276,7 +280,12 @@ impl ContextStrip {
        best.map(|(index, _, _)| index)
    }

-    fn remove_focused_context(&mut self, _: &RemoveFocusedContext, cx: &mut ViewContext<Self>) {
+    fn remove_focused_context(
+        &mut self,
+        _: &RemoveFocusedContext,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        if let Some(index) = self.focused_index {
            let mut is_empty = false;

@@ -302,22 +311,32 @@ impl ContextStrip {
        self.focused_index == Some(context.len())
    }

-    fn accept_suggested_context(&mut self, _: &AcceptSuggestedContext, cx: &mut ViewContext<Self>) {
+    fn accept_suggested_context(
+        &mut self,
+        _: &AcceptSuggestedContext,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        if let Some(suggested) = self.suggested_context(cx) {
            let context_store = self.context_store.read(cx);

            if self.is_suggested_focused(context_store.context()) {
-                self.add_suggested_context(&suggested, cx);
+                self.add_suggested_context(&suggested, window, cx);
            }
        }
    }

-    fn add_suggested_context(&mut self, suggested: &SuggestedContext, cx: &mut ViewContext<Self>) {
+    fn add_suggested_context(
+        &mut self,
+        suggested: &SuggestedContext,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        let task = self.context_store.update(cx, |context_store, cx| {
            context_store.accept_suggested_context(&suggested, cx)
        });

-        cx.spawn(|this, mut cx| async move {
+        cx.spawn_in(window, |this, mut cx| async move {
            match task.await.notify_async_err(&mut cx) {
                None => {}
                Some(()) => {
@@ -334,14 +353,14 @@ impl ContextStrip {
    }
 }

-impl FocusableView for ContextStrip {
-    fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
+impl Focusable for ContextStrip {
+    fn focus_handle(&self, _cx: &App) -> FocusHandle {
        self.focus_handle.clone()
    }
 }

 impl Render for ContextStrip {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let context_store = self.context_store.read(cx);
        let context = context_store
            .context()
@@ -374,19 +393,20 @@ impl Render for ContextStrip {
            .on_action(cx.listener(Self::remove_focused_context))
            .on_action(cx.listener(Self::accept_suggested_context))
            .on_children_prepainted({
-                let view = cx.view().downgrade();
-                move |children_bounds, cx| {
-                    view.update(cx, |this, _| {
-                        this.children_bounds = Some(children_bounds);
-                    })
-                    .ok();
+                let model = cx.entity().downgrade();
+                move |children_bounds, _window, cx| {
+                    model
+                        .update(cx, |this, _| {
+                            this.children_bounds = Some(children_bounds);
+                        })
+                        .ok();
                }
            })
            .child(
                PopoverMenu::new("context-picker")
-                    .menu(move |cx| {
+                    .menu(move |window, cx| {
                        context_picker.update(cx, |this, cx| {
-                            this.init(cx);
+                            this.init(window, cx);
                        });

                        Some(context_picker.clone())
@@ -397,12 +417,12 @@ impl Render for ContextStrip {
                            .style(ui::ButtonStyle::Filled)
                            .tooltip({
                                let focus_handle = focus_handle.clone();
-
-                                move |cx| {
+                                move |window, cx| {
                                    Tooltip::for_action_in(
                                        "Add Context",
                                        &ToggleContextPicker,
                                        &focus_handle,
+                                        window,
                                        cx,
                                    )
                                }
@@ -429,8 +449,12 @@ impl Render for ContextStrip {
                            )
                            .opacity(0.5)
                            .children(
-                                KeyBinding::for_action_in(&ToggleContextPicker, &focus_handle, cx)
-                                    .map(|binding| binding.into_any_element()),
+                                KeyBinding::for_action_in(
+                                    &ToggleContextPicker,
+                                    &focus_handle,
+                                    window,
+                                )
+                                .map(|binding| binding.into_any_element()),
                            ),
                    )
                }
@@ -443,7 +467,7 @@ impl Render for ContextStrip {
                    Some({
                        let id = context.id;
                        let context_store = self.context_store.clone();
-                        Rc::new(cx.listener(move |_this, _event, cx| {
+                        Rc::new(cx.listener(move |_this, _event, _window, cx| {
                            context_store.update(cx, |this, _cx| {
                                this.remove_context(id);
                            });
@@ -451,7 +475,7 @@ impl Render for ContextStrip {
                        }))
                    }),
                )
-                .on_click(Rc::new(cx.listener(move |this, _, cx| {
+                .on_click(Rc::new(cx.listener(move |this, _, _window, cx| {
                    this.focused_index = Some(i);
                    cx.notify();
                })))
@@ -464,9 +488,11 @@ impl Render for ContextStrip {
                        suggested.kind(),
                        self.is_suggested_focused(&context),
                    )
-                    .on_click(Rc::new(cx.listener(move |this, _event, cx| {
-                        this.add_suggested_context(&suggested, cx);
-                    }))),
+                    .on_click(Rc::new(cx.listener(
+                        move |this, _event, window, cx| {
+                            this.add_suggested_context(&suggested, window, cx);
+                        },
+                    ))),
                )
            })
            .when(!context.is_empty(), {
@@ -476,19 +502,20 @@ impl Render for ContextStrip {
                            .icon_size(IconSize::Small)
                            .tooltip({
                                let focus_handle = focus_handle.clone();
-                                move |cx| {
+                                move |window, cx| {
                                    Tooltip::for_action_in(
                                        "Remove All Context",
                                        &RemoveAllContext,
                                        &focus_handle,
+                                        window,
                                        cx,
                                    )
                                }
                            })
                            .on_click(cx.listener({
                                let focus_handle = focus_handle.clone();
-                                move |_this, _event, cx| {
-                                    focus_handle.dispatch_action(&RemoveAllContext, cx);
+                                move |_this, _event, window, cx| {
+                                    focus_handle.dispatch_action(&RemoveAllContext, window, cx);
                                }
                            })),
                    )
@@ -516,11 +543,11 @@ pub enum SuggestedContext {
    File {
        name: SharedString,
        icon_path: Option<SharedString>,
-        buffer: WeakModel<Buffer>,
+        buffer: WeakEntity<Buffer>,
    },
    Thread {
        name: SharedString,
-        thread: WeakModel<Thread>,
+        thread: WeakEntity<Thread>,
    },
 }

--- a/crates/assistant2/src/inline_assistant.rs
+++ b/crates/assistant2/src/inline_assistant.rs
--- a/crates/assistant2/src/inline_prompt_editor.rs
+++ b/crates/assistant2/src/inline_prompt_editor.rs
@@ -16,9 +16,8 @@ use editor::{
 use feature_flags::{FeatureFlagAppExt as _, ZedPro};
 use fs::Fs;
 use gpui::{
-    anchored, deferred, point, AnyElement, AppContext, ClickEvent, CursorStyle, EventEmitter,
-    FocusHandle, FocusableView, FontWeight, Model, Subscription, TextStyle, View, ViewContext,
-    WeakModel, WeakView, WindowContext,
+    anchored, deferred, point, AnyElement, App, ClickEvent, Context, CursorStyle, Entity,
+    EventEmitter, FocusHandle, Focusable, FontWeight, Subscription, TextStyle, WeakEntity, Window,
 };
 use language_model::{LanguageModel, LanguageModelRegistry};
 use language_model_selector::LanguageModelSelector;
@@ -35,12 +34,12 @@ use util::ResultExt;
 use workspace::Workspace;

 pub struct PromptEditor<T> {
-    pub editor: View<Editor>,
+    pub editor: Entity<Editor>,
    mode: PromptEditorMode,
-    context_store: Model<ContextStore>,
-    context_strip: View<ContextStrip>,
+    context_store: Entity<ContextStore>,
+    context_strip: Entity<ContextStrip>,
    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
-    model_selector: View<AssistantModelSelector>,
+    model_selector: Entity<AssistantModelSelector>,
    model_selector_menu_handle: PopoverMenuHandle<LanguageModelSelector>,
    edited_since_done: bool,
    prompt_history: VecDeque<String>,
@@ -56,7 +55,7 @@ pub struct PromptEditor<T> {
 impl<T: 'static> EventEmitter<PromptEditorEvent> for PromptEditor<T> {}

 impl<T: 'static> Render for PromptEditor<T> {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let ui_font_size = ThemeSettings::get_global(cx).ui_font_size;
        let mut buttons = Vec::new();

@@ -87,7 +86,7 @@ impl<T: 'static> Render for PromptEditor<T> {
            PromptEditorMode::Terminal { .. } => Pixels::from(8.0),
        };

-        buttons.extend(self.render_buttons(cx));
+        buttons.extend(self.render_buttons(window, cx));

        v_flex()
            .key_context("PromptEditor")
@@ -163,9 +162,7 @@ impl<T: 'static> Render for PromptEditor<T> {
                                    el.child(
                                        div()
                                            .id("error")
-                                            .tooltip(move |cx| {
-                                                Tooltip::text(error_message.clone(), cx)
-                                            })
+                                            .tooltip(Tooltip::text(error_message))
                                            .child(
                                                Icon::new(IconName::XCircle)
                                                    .size(IconSize::Small)
@@ -179,7 +176,7 @@ impl<T: 'static> Render for PromptEditor<T> {
                        h_flex()
                            .w_full()
                            .justify_between()
-                            .child(div().flex_1().child(self.render_editor(cx)))
+                            .child(div().flex_1().child(self.render_editor(window, cx)))
                            .child(
                                WithRemSize::new(ui_font_size)
                                    .flex()
@@ -209,8 +206,8 @@ impl<T: 'static> Render for PromptEditor<T> {
    }
 }

-impl<T: 'static> FocusableView for PromptEditor<T> {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl<T: 'static> Focusable for PromptEditor<T> {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.editor.focus_handle(cx)
    }
 }
@@ -218,47 +215,50 @@ impl<T: 'static> FocusableView for PromptEditor<T> {
 impl<T: 'static> PromptEditor<T> {
    const MAX_LINES: u8 = 8;

-    fn codegen_status<'a>(&'a self, cx: &'a AppContext) -> &'a CodegenStatus {
+    fn codegen_status<'a>(&'a self, cx: &'a App) -> &'a CodegenStatus {
        match &self.mode {
            PromptEditorMode::Buffer { codegen, .. } => codegen.read(cx).status(cx),
            PromptEditorMode::Terminal { codegen, .. } => &codegen.read(cx).status,
        }
    }

-    fn subscribe_to_editor(&mut self, cx: &mut ViewContext<Self>) {
+    fn subscribe_to_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        self.editor_subscriptions.clear();
-        self.editor_subscriptions
-            .push(cx.subscribe(&self.editor, Self::handle_prompt_editor_events));
+        self.editor_subscriptions.push(cx.subscribe_in(
+            &self.editor,
+            window,
+            Self::handle_prompt_editor_events,
+        ));
    }

    pub fn set_show_cursor_when_unfocused(
        &mut self,
        show_cursor_when_unfocused: bool,
-        cx: &mut ViewContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        self.editor.update(cx, |editor, cx| {
            editor.set_show_cursor_when_unfocused(show_cursor_when_unfocused, cx)
        });
    }

-    pub fn unlink(&mut self, cx: &mut ViewContext<Self>) {
+    pub fn unlink(&mut self, window: &mut Window, cx: &mut Context<Self>) {
        let prompt = self.prompt(cx);
-        let focus = self.editor.focus_handle(cx).contains_focused(cx);
-        self.editor = cx.new_view(|cx| {
-            let mut editor = Editor::auto_height(Self::MAX_LINES as usize, cx);
+        let focus = self.editor.focus_handle(cx).contains_focused(window, cx);
+        self.editor = cx.new(|cx| {
+            let mut editor = Editor::auto_height(Self::MAX_LINES as usize, window, cx);
            editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
-            editor.set_placeholder_text(Self::placeholder_text(&self.mode, cx), cx);
+            editor.set_placeholder_text(Self::placeholder_text(&self.mode, window, cx), cx);
            editor.set_placeholder_text("Add a prompt…", cx);
-            editor.set_text(prompt, cx);
+            editor.set_text(prompt, window, cx);
            if focus {
-                editor.focus(cx);
+                window.focus(&editor.focus_handle(cx));
            }
            editor
        });
-        self.subscribe_to_editor(cx);
+        self.subscribe_to_editor(window, cx);
    }

-    pub fn placeholder_text(mode: &PromptEditorMode, cx: &WindowContext) -> String {
+    pub fn placeholder_text(mode: &PromptEditorMode, window: &mut Window, cx: &mut App) -> String {
        let action = match mode {
            PromptEditorMode::Buffer { codegen, .. } => {
                if codegen.read(cx).is_insertion {
@@ -271,46 +271,50 @@ impl<T: 'static> PromptEditor<T> {
        };

        let assistant_panel_keybinding =
-            ui::text_for_action(&zed_actions::assistant::ToggleFocus, cx)
+            ui::text_for_action(&zed_actions::assistant::ToggleFocus, window)
                .map(|keybinding| format!("{keybinding} to chat ― "))
                .unwrap_or_default();

        format!("{action}… ({assistant_panel_keybinding}↓↑ for history)")
    }

-    pub fn prompt(&self, cx: &AppContext) -> String {
+    pub fn prompt(&self, cx: &App) -> String {
        self.editor.read(cx).text(cx)
    }

-    fn toggle_rate_limit_notice(&mut self, _: &ClickEvent, cx: &mut ViewContext<Self>) {
+    fn toggle_rate_limit_notice(
+        &mut self,
+        _: &ClickEvent,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        self.show_rate_limit_notice = !self.show_rate_limit_notice;
        if self.show_rate_limit_notice {
-            cx.focus_view(&self.editor);
+            window.focus(&self.editor.focus_handle(cx));
        }
        cx.notify();
    }

    fn handle_prompt_editor_events(
        &mut self,
-        _: View<Editor>,
+        _: &Entity<Editor>,
        event: &EditorEvent,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        match event {
            EditorEvent::Edited { .. } => {
-                if let Some(workspace) = cx.window_handle().downcast::<Workspace>() {
-                    workspace
-                        .update(cx, |workspace, cx| {
-                            let is_via_ssh = workspace
-                                .project()
-                                .update(cx, |project, _| project.is_via_ssh());
+                if let Some(workspace) = window.root::<Workspace>().flatten() {
+                    workspace.update(cx, |workspace, cx| {
+                        let is_via_ssh = workspace
+                            .project()
+                            .update(cx, |project, _| project.is_via_ssh());

-                            workspace
-                                .client()
-                                .telemetry()
-                                .log_edit_event("inline assist", is_via_ssh);
-                        })
-                        .log_err();
+                        workspace
+                            .client()
+                            .telemetry()
+                            .log_edit_event("inline assist", is_via_ssh);
+                    });
                }
                let prompt = self.editor.read(cx).text(cx);
                if self
@@ -334,20 +338,40 @@ impl<T: 'static> PromptEditor<T> {
        }
    }

-    fn toggle_context_picker(&mut self, _: &ToggleContextPicker, cx: &mut ViewContext<Self>) {
-        self.context_picker_menu_handle.toggle(cx);
+    fn toggle_context_picker(
+        &mut self,
+        _: &ToggleContextPicker,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.context_picker_menu_handle.toggle(window, cx);
    }

-    fn toggle_model_selector(&mut self, _: &ToggleModelSelector, cx: &mut ViewContext<Self>) {
-        self.model_selector_menu_handle.toggle(cx);
+    fn toggle_model_selector(
+        &mut self,
+        _: &ToggleModelSelector,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.model_selector_menu_handle.toggle(window, cx);
    }

-    pub fn remove_all_context(&mut self, _: &RemoveAllContext, cx: &mut ViewContext<Self>) {
+    pub fn remove_all_context(
+        &mut self,
+        _: &RemoveAllContext,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        self.context_store.update(cx, |store, _cx| store.clear());
        cx.notify();
    }

-    fn cancel(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
+    fn cancel(
+        &mut self,
+        _: &editor::actions::Cancel,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        match self.codegen_status(cx) {
            CodegenStatus::Idle | CodegenStatus::Done | CodegenStatus::Error(_) => {
                cx.emit(PromptEditorEvent::CancelRequested);
@@ -358,7 +382,7 @@ impl<T: 'static> PromptEditor<T> {
        }
    }

-    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
+    fn confirm(&mut self, _: &menu::Confirm, _window: &mut Window, cx: &mut Context<Self>) {
        match self.codegen_status(cx) {
            CodegenStatus::Idle => {
                cx.emit(PromptEditorEvent::StartRequested);
@@ -379,49 +403,49 @@ impl<T: 'static> PromptEditor<T> {
        }
    }

-    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
+    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(ix) = self.prompt_history_ix {
            if ix > 0 {
                self.prompt_history_ix = Some(ix - 1);
                let prompt = self.prompt_history[ix - 1].as_str();
                self.editor.update(cx, |editor, cx| {
-                    editor.set_text(prompt, cx);
-                    editor.move_to_beginning(&Default::default(), cx);
+                    editor.set_text(prompt, window, cx);
+                    editor.move_to_beginning(&Default::default(), window, cx);
                });
            }
        } else if !self.prompt_history.is_empty() {
            self.prompt_history_ix = Some(self.prompt_history.len() - 1);
            let prompt = self.prompt_history[self.prompt_history.len() - 1].as_str();
            self.editor.update(cx, |editor, cx| {
-                editor.set_text(prompt, cx);
-                editor.move_to_beginning(&Default::default(), cx);
+                editor.set_text(prompt, window, cx);
+                editor.move_to_beginning(&Default::default(), window, cx);
            });
        }
    }

-    fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
+    fn move_down(&mut self, _: &MoveDown, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(ix) = self.prompt_history_ix {
            if ix < self.prompt_history.len() - 1 {
                self.prompt_history_ix = Some(ix + 1);
                let prompt = self.prompt_history[ix + 1].as_str();
                self.editor.update(cx, |editor, cx| {
-                    editor.set_text(prompt, cx);
-                    editor.move_to_end(&Default::default(), cx)
+                    editor.set_text(prompt, window, cx);
+                    editor.move_to_end(&Default::default(), window, cx)
                });
            } else {
                self.prompt_history_ix = None;
                let prompt = self.pending_prompt.as_str();
                self.editor.update(cx, |editor, cx| {
-                    editor.set_text(prompt, cx);
-                    editor.move_to_end(&Default::default(), cx)
+                    editor.set_text(prompt, window, cx);
+                    editor.move_to_end(&Default::default(), window, cx)
                });
            }
        } else {
-            cx.focus_view(&self.context_strip);
+            self.context_strip.focus_handle(cx).focus(window);
        }
    }

-    fn render_buttons(&self, cx: &mut ViewContext<Self>) -> Vec<AnyElement> {
+    fn render_buttons(&self, _window: &mut Window, cx: &mut Context<Self>) -> Vec<AnyElement> {
        let mode = match &self.mode {
            PromptEditorMode::Buffer { codegen, .. } => {
                let codegen = codegen.read(cx);
@@ -443,21 +467,22 @@ impl<T: 'static> PromptEditor<T> {
                    .icon(IconName::Return)
                    .icon_size(IconSize::XSmall)
                    .icon_color(Color::Muted)
-                    .on_click(cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::StartRequested)))
+                    .on_click(cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::StartRequested)))
                    .into_any_element()]
            }
            CodegenStatus::Pending => vec![IconButton::new("stop", IconName::Stop)
                .icon_color(Color::Error)
                .shape(IconButtonShape::Square)
-                .tooltip(move |cx| {
+                .tooltip(move |window, cx| {
                    Tooltip::with_meta(
                        mode.tooltip_interrupt(),
                        Some(&menu::Cancel),
                        "Changes won't be discarded",
+                        window,
                        cx,
                    )
                })
-                .on_click(cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::StopRequested)))
+                .on_click(cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::StopRequested)))
                .into_any_element()],
            CodegenStatus::Done | CodegenStatus::Error(_) => {
                let has_error = matches!(codegen_status, CodegenStatus::Error(_));
@@ -465,15 +490,16 @@ impl<T: 'static> PromptEditor<T> {
                    vec![IconButton::new("restart", IconName::RotateCw)
                        .icon_color(Color::Info)
                        .shape(IconButtonShape::Square)
-                        .tooltip(move |cx| {
+                        .tooltip(move |window, cx| {
                            Tooltip::with_meta(
                                mode.tooltip_restart(),
                                Some(&menu::Confirm),
                                "Changes will be discarded",
+                                window,
                                cx,
                            )
                        })
-                        .on_click(cx.listener(|_, _, cx| {
+                        .on_click(cx.listener(|_, _, _, cx| {
                            cx.emit(PromptEditorEvent::StartRequested);
                        }))
                        .into_any_element()]
@@ -481,10 +507,10 @@ impl<T: 'static> PromptEditor<T> {
                    let accept = IconButton::new("accept", IconName::Check)
                        .icon_color(Color::Info)
                        .shape(IconButtonShape::Square)
-                        .tooltip(move |cx| {
-                            Tooltip::for_action(mode.tooltip_accept(), &menu::Confirm, cx)
+                        .tooltip(move |window, cx| {
+                            Tooltip::for_action(mode.tooltip_accept(), &menu::Confirm, window, cx)
                        })
-                        .on_click(cx.listener(|_, _, cx| {
+                        .on_click(cx.listener(|_, _, _, cx| {
                            cx.emit(PromptEditorEvent::ConfirmRequested { execute: false });
                        }))
                        .into_any_element();
@@ -495,14 +521,15 @@ impl<T: 'static> PromptEditor<T> {
                            IconButton::new("confirm", IconName::Play)
                                .icon_color(Color::Info)
                                .shape(IconButtonShape::Square)
-                                .tooltip(|cx| {
+                                .tooltip(|window, cx| {
                                    Tooltip::for_action(
                                        "Execute Generated Command",
                                        &menu::SecondaryConfirm,
+                                        window,
                                        cx,
                                    )
                                })
-                                .on_click(cx.listener(|_, _, cx| {
+                                .on_click(cx.listener(|_, _, _, cx| {
                                    cx.emit(PromptEditorEvent::ConfirmRequested { execute: true });
                                }))
                                .into_any_element(),
@@ -514,7 +541,12 @@ impl<T: 'static> PromptEditor<T> {
        }
    }

-    fn cycle_prev(&mut self, _: &CyclePreviousInlineAssist, cx: &mut ViewContext<Self>) {
+    fn cycle_prev(
+        &mut self,
+        _: &CyclePreviousInlineAssist,
+        _: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        match &self.mode {
            PromptEditorMode::Buffer { codegen, .. } => {
                codegen.update(cx, |codegen, cx| codegen.cycle_prev(cx));
@@ -525,7 +557,7 @@ impl<T: 'static> PromptEditor<T> {
        }
    }

-    fn cycle_next(&mut self, _: &CycleNextInlineAssist, cx: &mut ViewContext<Self>) {
+    fn cycle_next(&mut self, _: &CycleNextInlineAssist, _: &mut Window, cx: &mut Context<Self>) {
        match &self.mode {
            PromptEditorMode::Buffer { codegen, .. } => {
                codegen.update(cx, |codegen, cx| codegen.cycle_next(cx));
@@ -536,16 +568,16 @@ impl<T: 'static> PromptEditor<T> {
        }
    }

-    fn render_close_button(&self, cx: &ViewContext<Self>) -> AnyElement {
+    fn render_close_button(&self, cx: &mut Context<Self>) -> AnyElement {
        IconButton::new("cancel", IconName::Close)
            .icon_color(Color::Muted)
            .shape(IconButtonShape::Square)
-            .tooltip(|cx| Tooltip::text("Close Assistant", cx))
-            .on_click(cx.listener(|_, _, cx| cx.emit(PromptEditorEvent::CancelRequested)))
+            .tooltip(Tooltip::text("Close Assistant"))
+            .on_click(cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::CancelRequested)))
            .into_any_element()
    }

-    fn render_cycle_controls(&self, codegen: &BufferCodegen, cx: &ViewContext<Self>) -> AnyElement {
+    fn render_cycle_controls(&self, codegen: &BufferCodegen, cx: &Context<Self>) -> AnyElement {
        let disabled = matches!(codegen.status(cx), CodegenStatus::Idle);

        let model_registry = LanguageModelRegistry::read_global(cx);
@@ -585,13 +617,13 @@ impl<T: 'static> PromptEditor<T> {
                    .shape(IconButtonShape::Square)
                    .tooltip({
                        let focus_handle = self.editor.focus_handle(cx);
-                        move |cx| {
-                            cx.new_view(|cx| {
+                        move |window, cx| {
+                            cx.new(|_| {
                                let mut tooltip = Tooltip::new("Previous Alternative").key_binding(
                                    KeyBinding::for_action_in(
                                        &CyclePreviousInlineAssist,
                                        &focus_handle,
-                                        cx,
+                                        window,
                                    ),
                                );
                                if !disabled && current_index != 0 {
@@ -602,8 +634,8 @@ impl<T: 'static> PromptEditor<T> {
                            .into()
                        }
                    })
-                    .on_click(cx.listener(|this, _, cx| {
-                        this.cycle_prev(&CyclePreviousInlineAssist, cx);
+                    .on_click(cx.listener(|this, _, window, cx| {
+                        this.cycle_prev(&CyclePreviousInlineAssist, window, cx);
                    })),
            )
            .child(
@@ -626,13 +658,13 @@ impl<T: 'static> PromptEditor<T> {
                    .shape(IconButtonShape::Square)
                    .tooltip({
                        let focus_handle = self.editor.focus_handle(cx);
-                        move |cx| {
-                            cx.new_view(|cx| {
+                        move |window, cx| {
+                            cx.new(|_| {
                                let mut tooltip = Tooltip::new("Next Alternative").key_binding(
                                    KeyBinding::for_action_in(
                                        &CycleNextInlineAssist,
                                        &focus_handle,
-                                        cx,
+                                        window,
                                    ),
                                );
                                if !disabled && current_index != total_models - 1 {
@@ -643,14 +675,14 @@ impl<T: 'static> PromptEditor<T> {
                            .into()
                        }
                    })
-                    .on_click(
-                        cx.listener(|this, _, cx| this.cycle_next(&CycleNextInlineAssist, cx)),
-                    ),
+                    .on_click(cx.listener(|this, _, window, cx| {
+                        this.cycle_next(&CycleNextInlineAssist, window, cx)
+                    })),
            )
            .into_any_element()
    }

-    fn render_rate_limit_notice(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render_rate_limit_notice(&self, cx: &mut Context<Self>) -> impl IntoElement {
        Popover::new().child(
            v_flex()
                .occlude()
@@ -674,7 +706,7 @@ impl<T: 'static> PromptEditor<T> {
                            } else {
                                ui::ToggleState::Unselected
                            },
-                            |selection, cx| {
+                            |selection, _, cx| {
                                let is_dismissed = match selection {
                                    ui::ToggleState::Unselected => false,
                                    ui::ToggleState::Indeterminate => return,
@@ -693,10 +725,11 @@ impl<T: 'static> PromptEditor<T> {
                                        .on_click(cx.listener(Self::toggle_rate_limit_notice)),
                                )
                                .child(Button::new("more-info", "More Info").on_click(
-                                    |_event, cx| {
-                                        cx.dispatch_action(Box::new(
-                                            zed_actions::OpenAccountSettings,
-                                        ))
+                                    |_event, window, cx| {
+                                        window.dispatch_action(
+                                            Box::new(zed_actions::OpenAccountSettings),
+                                            cx,
+                                        )
                                    },
                                )),
                        ),
@@ -704,9 +737,9 @@ impl<T: 'static> PromptEditor<T> {
        )
    }

-    fn render_editor(&mut self, cx: &mut ViewContext<Self>) -> AnyElement {
+    fn render_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
        let font_size = TextSize::Default.rems(cx);
-        let line_height = font_size.to_pixels(cx.rem_size()) * 1.3;
+        let line_height = font_size.to_pixels(window.rem_size()) * 1.3;

        div()
            .key_context("InlineAssistEditor")
@@ -740,17 +773,15 @@ impl<T: 'static> PromptEditor<T> {

    fn handle_context_strip_event(
        &mut self,
-        _context_strip: View<ContextStrip>,
+        _context_strip: &Entity<ContextStrip>,
        event: &ContextStripEvent,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        match event {
            ContextStripEvent::PickerDismissed
            | ContextStripEvent::BlurredEmpty
-            | ContextStripEvent::BlurredUp => {
-                let editor_focus_handle = self.editor.focus_handle(cx);
-                cx.focus(&editor_focus_handle);
-            }
+            | ContextStripEvent::BlurredUp => self.editor.focus_handle(cx).focus(window),
            ContextStripEvent::BlurredDown => {}
        }
    }
@@ -759,12 +790,12 @@ impl<T: 'static> PromptEditor<T> {
 pub enum PromptEditorMode {
    Buffer {
        id: InlineAssistId,
-        codegen: Model<BufferCodegen>,
+        codegen: Entity<BufferCodegen>,
        gutter_dimensions: Arc<Mutex<GutterDimensions>>,
    },
    Terminal {
        id: TerminalInlineAssistId,
-        codegen: Model<TerminalCodegen>,
+        codegen: Entity<TerminalCodegen>,
        height_in_lines: u8,
    },
 }
@@ -795,13 +826,14 @@ impl PromptEditor<BufferCodegen> {
        id: InlineAssistId,
        gutter_dimensions: Arc<Mutex<GutterDimensions>>,
        prompt_history: VecDeque<String>,
-        prompt_buffer: Model<MultiBuffer>,
-        codegen: Model<BufferCodegen>,
+        prompt_buffer: Entity<MultiBuffer>,
+        codegen: Entity<BufferCodegen>,
        fs: Arc<dyn Fs>,
-        context_store: Model<ContextStore>,
-        workspace: WeakView<Workspace>,
-        thread_store: Option<WeakModel<ThreadStore>>,
-        cx: &mut ViewContext<PromptEditor<BufferCodegen>>,
+        context_store: Entity<ContextStore>,
+        workspace: WeakEntity<Workspace>,
+        thread_store: Option<WeakEntity<ThreadStore>>,
+        window: &mut Window,
+        cx: &mut Context<PromptEditor<BufferCodegen>>,
    ) -> PromptEditor<BufferCodegen> {
        let codegen_subscription = cx.observe(&codegen, Self::handle_codegen_changed);
        let mode = PromptEditorMode::Buffer {
@@ -810,7 +842,7 @@ impl PromptEditor<BufferCodegen> {
            gutter_dimensions,
        };

-        let prompt_editor = cx.new_view(|cx| {
+        let prompt_editor = cx.new(|cx| {
            let mut editor = Editor::new(
                EditorMode::AutoHeight {
                    max_lines: Self::MAX_LINES as usize,
@@ -818,6 +850,7 @@ impl PromptEditor<BufferCodegen> {
                prompt_buffer,
                None,
                false,
+                window,
                cx,
            );
            editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
@@ -825,13 +858,13 @@ impl PromptEditor<BufferCodegen> {
            // always show the cursor (even when it isn't focused) because
            // typing in one will make what you typed appear in all of them.
            editor.set_show_cursor_when_unfocused(true, cx);
-            editor.set_placeholder_text(Self::placeholder_text(&mode, cx), cx);
+            editor.set_placeholder_text(Self::placeholder_text(&mode, window, cx), cx);
            editor
        });
        let context_picker_menu_handle = PopoverMenuHandle::default();
        let model_selector_menu_handle = PopoverMenuHandle::default();

-        let context_strip = cx.new_view(|cx| {
+        let context_strip = cx.new(|cx| {
            ContextStrip::new(
                context_store.clone(),
                workspace.clone(),
@@ -839,23 +872,25 @@ impl PromptEditor<BufferCodegen> {
                thread_store.clone(),
                context_picker_menu_handle.clone(),
                SuggestContextKind::Thread,
+                window,
                cx,
            )
        });

        let context_strip_subscription =
-            cx.subscribe(&context_strip, Self::handle_context_strip_event);
+            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);

        let mut this: PromptEditor<BufferCodegen> = PromptEditor {
            editor: prompt_editor.clone(),
            context_store,
            context_strip,
            context_picker_menu_handle,
-            model_selector: cx.new_view(|cx| {
+            model_selector: cx.new(|cx| {
                AssistantModelSelector::new(
                    fs,
                    model_selector_menu_handle.clone(),
                    prompt_editor.focus_handle(cx),
+                    window,
                    cx,
                )
            }),
@@ -872,14 +907,14 @@ impl PromptEditor<BufferCodegen> {
            _phantom: Default::default(),
        };

-        this.subscribe_to_editor(cx);
+        this.subscribe_to_editor(window, cx);
        this
    }

    fn handle_codegen_changed(
        &mut self,
-        _: Model<BufferCodegen>,
-        cx: &mut ViewContext<PromptEditor<BufferCodegen>>,
+        _: Entity<BufferCodegen>,
+        cx: &mut Context<PromptEditor<BufferCodegen>>,
    ) {
        match self.codegen_status(cx) {
            CodegenStatus::Idle => {
@@ -918,7 +953,7 @@ impl PromptEditor<BufferCodegen> {
        }
    }

-    pub fn codegen(&self) -> &Model<BufferCodegen> {
+    pub fn codegen(&self) -> &Entity<BufferCodegen> {
        match &self.mode {
            PromptEditorMode::Buffer { codegen, .. } => codegen,
            PromptEditorMode::Terminal { .. } => unreachable!(),
@@ -951,13 +986,14 @@ impl PromptEditor<TerminalCodegen> {
    pub fn new_terminal(
        id: TerminalInlineAssistId,
        prompt_history: VecDeque<String>,
-        prompt_buffer: Model<MultiBuffer>,
-        codegen: Model<TerminalCodegen>,
+        prompt_buffer: Entity<MultiBuffer>,
+        codegen: Entity<TerminalCodegen>,
        fs: Arc<dyn Fs>,
-        context_store: Model<ContextStore>,
-        workspace: WeakView<Workspace>,
-        thread_store: Option<WeakModel<ThreadStore>>,
-        cx: &mut ViewContext<Self>,
+        context_store: Entity<ContextStore>,
+        workspace: WeakEntity<Workspace>,
+        thread_store: Option<WeakEntity<ThreadStore>>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
        let codegen_subscription = cx.observe(&codegen, Self::handle_codegen_changed);
        let mode = PromptEditorMode::Terminal {
@@ -966,7 +1002,7 @@ impl PromptEditor<TerminalCodegen> {
            height_in_lines: 1,
        };

-        let prompt_editor = cx.new_view(|cx| {
+        let prompt_editor = cx.new(|cx| {
            let mut editor = Editor::new(
                EditorMode::AutoHeight {
                    max_lines: Self::MAX_LINES as usize,
@@ -974,16 +1010,17 @@ impl PromptEditor<TerminalCodegen> {
                prompt_buffer,
                None,
                false,
+                window,
                cx,
            );
            editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
-            editor.set_placeholder_text(Self::placeholder_text(&mode, cx), cx);
+            editor.set_placeholder_text(Self::placeholder_text(&mode, window, cx), cx);
            editor
        });
        let context_picker_menu_handle = PopoverMenuHandle::default();
        let model_selector_menu_handle = PopoverMenuHandle::default();

-        let context_strip = cx.new_view(|cx| {
+        let context_strip = cx.new(|cx| {
            ContextStrip::new(
                context_store.clone(),
                workspace.clone(),
@@ -991,23 +1028,25 @@ impl PromptEditor<TerminalCodegen> {
                thread_store.clone(),
                context_picker_menu_handle.clone(),
                SuggestContextKind::Thread,
+                window,
                cx,
            )
        });

        let context_strip_subscription =
-            cx.subscribe(&context_strip, Self::handle_context_strip_event);
+            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);

        let mut this = Self {
            editor: prompt_editor.clone(),
            context_store,
            context_strip,
            context_picker_menu_handle,
-            model_selector: cx.new_view(|cx| {
+            model_selector: cx.new(|cx| {
                AssistantModelSelector::new(
                    fs,
                    model_selector_menu_handle.clone(),
                    prompt_editor.focus_handle(cx),
+                    window,
                    cx,
                )
            }),
@@ -1024,11 +1063,11 @@ impl PromptEditor<TerminalCodegen> {
            _phantom: Default::default(),
        };
        this.count_lines(cx);
-        this.subscribe_to_editor(cx);
+        this.subscribe_to_editor(window, cx);
        this
    }

-    fn count_lines(&mut self, cx: &mut ViewContext<Self>) {
+    fn count_lines(&mut self, cx: &mut Context<Self>) {
        let height_in_lines = cmp::max(
            2, // Make the editor at least two lines tall, to account for padding and buttons.
            cmp::min(
@@ -1052,7 +1091,7 @@ impl PromptEditor<TerminalCodegen> {
        }
    }

-    fn handle_codegen_changed(&mut self, _: Model<TerminalCodegen>, cx: &mut ViewContext<Self>) {
+    fn handle_codegen_changed(&mut self, _: Entity<TerminalCodegen>, cx: &mut Context<Self>) {
        match &self.codegen().read(cx).status {
            CodegenStatus::Idle => {
                self.editor
@@ -1070,7 +1109,7 @@ impl PromptEditor<TerminalCodegen> {
        }
    }

-    pub fn codegen(&self) -> &Model<TerminalCodegen> {
+    pub fn codegen(&self) -> &Entity<TerminalCodegen> {
        match &self.mode {
            PromptEditorMode::Buffer { .. } => unreachable!(),
            PromptEditorMode::Terminal { codegen, .. } => codegen,
@@ -1094,7 +1133,7 @@ fn dismissed_rate_limit_notice() -> bool {
        .map_or(false, |s| s.is_some())
 }

-fn set_rate_limit_notice_dismissed(is_dismissed: bool, cx: &mut AppContext) {
+fn set_rate_limit_notice_dismissed(is_dismissed: bool, cx: &mut App) {
    db::write_and_log(cx, move || async move {
        if is_dismissed {
            db::kvp::KEY_VALUE_STORE
--- a/crates/assistant2/src/message_editor.rs
+++ b/crates/assistant2/src/message_editor.rs
@@ -4,8 +4,8 @@ use editor::actions::MoveUp;
 use editor::{Editor, EditorElement, EditorEvent, EditorStyle};
 use fs::Fs;
 use gpui::{
-    pulsating_between, Animation, AnimationExt, AppContext, DismissEvent, FocusableView, Model,
-    Subscription, TextStyle, View, WeakModel, WeakView,
+    pulsating_between, Animation, AnimationExt, App, DismissEvent, Entity, Focusable, Subscription,
+    TextStyle, WeakEntity,
 };
 use language_model::{LanguageModelRegistry, LanguageModelRequestTool};
 use language_model_selector::LanguageModelSelector;
@@ -13,7 +13,9 @@ use rope::Point;
 use settings::Settings;
 use std::time::Duration;
 use theme::ThemeSettings;
-use ui::{prelude::*, ButtonLike, KeyBinding, PopoverMenu, PopoverMenuHandle, Switch, TintColor};
+use ui::{
+    prelude::*, ButtonLike, KeyBinding, PopoverMenu, PopoverMenuHandle, Switch, TintColor, Tooltip,
+};
 use workspace::Workspace;

 use crate::assistant_model_selector::AssistantModelSelector;
@@ -25,14 +27,14 @@ use crate::thread_store::ThreadStore;
 use crate::{Chat, ChatMode, RemoveAllContext, ToggleContextPicker, ToggleModelSelector};

 pub struct MessageEditor {
-    thread: Model<Thread>,
-    editor: View<Editor>,
-    context_store: Model<ContextStore>,
-    context_strip: View<ContextStrip>,
+    thread: Entity<Thread>,
+    editor: Entity<Editor>,
+    context_store: Entity<ContextStore>,
+    context_strip: Entity<ContextStrip>,
    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
-    inline_context_picker: View<ContextPicker>,
+    inline_context_picker: Entity<ContextPicker>,
    inline_context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
-    model_selector: View<AssistantModelSelector>,
+    model_selector: Entity<AssistantModelSelector>,
    model_selector_menu_handle: PopoverMenuHandle<LanguageModelSelector>,
    use_tools: bool,
    _subscriptions: Vec<Subscription>,
@@ -41,36 +43,38 @@ pub struct MessageEditor {
 impl MessageEditor {
    pub fn new(
        fs: Arc<dyn Fs>,
-        workspace: WeakView<Workspace>,
-        thread_store: WeakModel<ThreadStore>,
-        thread: Model<Thread>,
-        cx: &mut ViewContext<Self>,
+        workspace: WeakEntity<Workspace>,
+        thread_store: WeakEntity<ThreadStore>,
+        thread: Entity<Thread>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
-        let context_store = cx.new_model(|_cx| ContextStore::new(workspace.clone()));
+        let context_store = cx.new(|_cx| ContextStore::new(workspace.clone()));
        let context_picker_menu_handle = PopoverMenuHandle::default();
        let inline_context_picker_menu_handle = PopoverMenuHandle::default();
        let model_selector_menu_handle = PopoverMenuHandle::default();

-        let editor = cx.new_view(|cx| {
-            let mut editor = Editor::auto_height(10, cx);
+        let editor = cx.new(|cx| {
+            let mut editor = Editor::auto_height(10, window, cx);
            editor.set_placeholder_text("Ask anything, @ to mention, ↑ to select", cx);
            editor.set_show_indent_guides(false, cx);

            editor
        });

-        let inline_context_picker = cx.new_view(|cx| {
+        let inline_context_picker = cx.new(|cx| {
            ContextPicker::new(
                workspace.clone(),
                Some(thread_store.clone()),
                context_store.downgrade(),
                editor.downgrade(),
                ConfirmBehavior::Close,
+                window,
                cx,
            )
        });

-        let context_strip = cx.new_view(|cx| {
+        let context_strip = cx.new(|cx| {
            ContextStrip::new(
                context_store.clone(),
                workspace.clone(),
@@ -78,17 +82,19 @@ impl MessageEditor {
                Some(thread_store.clone()),
                context_picker_menu_handle.clone(),
                SuggestContextKind::File,
+                window,
                cx,
            )
        });

        let subscriptions = vec![
-            cx.subscribe(&editor, Self::handle_editor_event),
-            cx.subscribe(
+            cx.subscribe_in(&editor, window, Self::handle_editor_event),
+            cx.subscribe_in(
                &inline_context_picker,
+                window,
                Self::handle_inline_context_picker_event,
            ),
-            cx.subscribe(&context_strip, Self::handle_context_strip_event),
+            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event),
        ];

        Self {
@@ -99,11 +105,12 @@ impl MessageEditor {
            context_picker_menu_handle,
            inline_context_picker,
            inline_context_picker_menu_handle,
-            model_selector: cx.new_view(|cx| {
+            model_selector: cx.new(|cx| {
                AssistantModelSelector::new(
                    fs,
                    model_selector_menu_handle.clone(),
                    editor.focus_handle(cx),
+                    window,
                    cx,
                )
            }),
@@ -113,29 +120,59 @@ impl MessageEditor {
        }
    }

-    fn toggle_model_selector(&mut self, _: &ToggleModelSelector, cx: &mut ViewContext<Self>) {
-        self.model_selector_menu_handle.toggle(cx)
+    fn toggle_model_selector(
+        &mut self,
+        _: &ToggleModelSelector,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.model_selector_menu_handle.toggle(window, cx)
    }

-    fn toggle_chat_mode(&mut self, _: &ChatMode, cx: &mut ViewContext<Self>) {
+    fn toggle_chat_mode(&mut self, _: &ChatMode, _window: &mut Window, cx: &mut Context<Self>) {
        self.use_tools = !self.use_tools;
        cx.notify();
    }

-    fn toggle_context_picker(&mut self, _: &ToggleContextPicker, cx: &mut ViewContext<Self>) {
-        self.context_picker_menu_handle.toggle(cx);
+    fn toggle_context_picker(
+        &mut self,
+        _: &ToggleContextPicker,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        self.context_picker_menu_handle.toggle(window, cx);
    }

-    pub fn remove_all_context(&mut self, _: &RemoveAllContext, cx: &mut ViewContext<Self>) {
+    pub fn remove_all_context(
+        &mut self,
+        _: &RemoveAllContext,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        self.context_store.update(cx, |store, _cx| store.clear());
        cx.notify();
    }

-    fn chat(&mut self, _: &Chat, cx: &mut ViewContext<Self>) {
-        self.send_to_model(RequestKind::Chat, cx);
+    fn chat(&mut self, _: &Chat, window: &mut Window, cx: &mut Context<Self>) {
+        self.send_to_model(RequestKind::Chat, window, cx);
    }

-    fn send_to_model(&mut self, request_kind: RequestKind, cx: &mut ViewContext<Self>) {
+    fn is_editor_empty(&self, cx: &App) -> bool {
+        self.editor.read(cx).text(cx).is_empty()
+    }
+
+    fn is_model_selected(&self, cx: &App) -> bool {
+        LanguageModelRegistry::read_global(cx)
+            .active_model()
+            .is_some()
+    }
+
+    fn send_to_model(
+        &mut self,
+        request_kind: RequestKind,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
        let provider = LanguageModelRegistry::read_global(cx).active_provider();
        if provider
            .as_ref()
@@ -152,7 +189,7 @@ impl MessageEditor {

        let user_message = self.editor.update(cx, |editor, cx| {
            let text = editor.text(cx);
-            editor.clear(cx);
+            editor.clear(window, cx);
            text
        });

@@ -191,9 +228,10 @@ impl MessageEditor {

    fn handle_editor_event(
        &mut self,
-        editor: View<Editor>,
+        editor: &Entity<Editor>,
        event: &EditorEvent,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        match event {
            EditorEvent::SelectionsChanged { .. } => {
@@ -204,7 +242,7 @@ impl MessageEditor {
                        let behind_cursor = Point::new(newest_cursor.row, newest_cursor.column - 1);
                        let char_behind_cursor = snapshot.chars_at(behind_cursor).next();
                        if char_behind_cursor == Some('@') {
-                            self.inline_context_picker_menu_handle.show(cx);
+                            self.inline_context_picker_menu_handle.show(window, cx);
                        }
                    }
                });
@@ -215,57 +253,66 @@ impl MessageEditor {

    fn handle_inline_context_picker_event(
        &mut self,
-        _inline_context_picker: View<ContextPicker>,
+        _inline_context_picker: &Entity<ContextPicker>,
        _event: &DismissEvent,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        let editor_focus_handle = self.editor.focus_handle(cx);
-        cx.focus(&editor_focus_handle);
+        window.focus(&editor_focus_handle);
    }

    fn handle_context_strip_event(
        &mut self,
-        _context_strip: View<ContextStrip>,
+        _context_strip: &Entity<ContextStrip>,
        event: &ContextStripEvent,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        match event {
            ContextStripEvent::PickerDismissed
            | ContextStripEvent::BlurredEmpty
            | ContextStripEvent::BlurredDown => {
                let editor_focus_handle = self.editor.focus_handle(cx);
-                cx.focus(&editor_focus_handle);
+                window.focus(&editor_focus_handle);
            }
            ContextStripEvent::BlurredUp => {}
        }
    }

-    fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
+    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
        if self.context_picker_menu_handle.is_deployed()
            || self.inline_context_picker_menu_handle.is_deployed()
        {
            cx.propagate();
        } else {
-            cx.focus_view(&self.context_strip);
+            self.context_strip.focus_handle(cx).focus(window);
        }
    }
 }

-impl FocusableView for MessageEditor {
-    fn focus_handle(&self, cx: &AppContext) -> gpui::FocusHandle {
+impl Focusable for MessageEditor {
+    fn focus_handle(&self, cx: &App) -> gpui::FocusHandle {
        self.editor.focus_handle(cx)
    }
 }

 impl Render for MessageEditor {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let font_size = TextSize::Default.rems(cx);
-        let line_height = font_size.to_pixels(cx.rem_size()) * 1.5;
+        let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
        let focus_handle = self.editor.focus_handle(cx);
        let inline_context_picker = self.inline_context_picker.clone();
        let bg_color = cx.theme().colors().editor_background;
        let is_streaming_completion = self.thread.read(cx).is_streaming();
        let button_width = px(64.);
+        let is_model_selected = self.is_model_selected(cx);
+        let is_editor_empty = self.is_editor_empty(cx);
+        let submit_label_color = if is_editor_empty {
+            Color::Muted
+        } else {
+            Color::Default
+        };

        v_flex()
            .key_context("MessageEditor")
@@ -307,9 +354,9 @@ impl Render for MessageEditor {
                    })
                    .child(
                        PopoverMenu::new("inline-context-picker")
-                            .menu(move |cx| {
+                            .menu(move |window, cx| {
                                inline_context_picker.update(cx, |this, cx| {
-                                    this.init(cx);
+                                    this.init(window, cx);
                                });

                                Some(inline_context_picker.clone())
@@ -332,7 +379,7 @@ impl Render for MessageEditor {
                            .child(
                                Switch::new("use-tools", self.use_tools.into())
                                    .label("Tools")
-                                    .on_click(cx.listener(|this, selection, _cx| {
+                                    .on_click(cx.listener(|this, selection, _window, _cx| {
                                        this.use_tools = match selection {
                                            ToggleState::Selected => true,
                                            ToggleState::Unselected
@@ -342,7 +389,7 @@ impl Render for MessageEditor {
                                    .key_binding(KeyBinding::for_action_in(
                                        &ChatMode,
                                        &focus_handle,
-                                        cx,
+                                        window,
                                    )),
                            )
                            .child(h_flex().gap_1().child(self.model_selector.clone()).child(
@@ -371,35 +418,52 @@ impl Render for MessageEditor {
                                                    KeyBinding::for_action_in(
                                                        &editor::actions::Cancel,
                                                        &focus_handle,
-                                                        cx,
+                                                        window,
                                                    )
                                                    .map(|binding| binding.into_any_element()),
                                                ),
                                        )
-                                        .on_click(move |_event, cx| {
-                                            focus_handle
-                                                .dispatch_action(&editor::actions::Cancel, cx);
+                                        .on_click(move |_event, window, cx| {
+                                            focus_handle.dispatch_action(
+                                                &editor::actions::Cancel,
+                                                window,
+                                                cx,
+                                            );
                                        })
                                } else {
                                    ButtonLike::new("submit-message")
                                        .width(button_width.into())
                                        .style(ButtonStyle::Filled)
+                                        .disabled(is_editor_empty || !is_model_selected)
                                        .child(
                                            h_flex()
                                                .w_full()
                                                .justify_between()
-                                                .child(Label::new("Submit").size(LabelSize::Small))
+                                                .child(
+                                                    Label::new("Submit")
+                                                        .size(LabelSize::Small)
+                                                        .color(submit_label_color),
+                                                )
                                                .children(
                                                    KeyBinding::for_action_in(
                                                        &Chat,
                                                        &focus_handle,
-                                                        cx,
+                                                        window,
                                                    )
                                                    .map(|binding| binding.into_any_element()),
                                                ),
                                        )
-                                        .on_click(move |_event, cx| {
-                                            focus_handle.dispatch_action(&Chat, cx);
+                                        .on_click(move |_event, window, cx| {
+                                            focus_handle.dispatch_action(&Chat, window, cx);
+                                        })
+                                        .when(is_editor_empty, |button| {
+                                            button
+                                                .tooltip(Tooltip::text("Type a message to submit"))
+                                        })
+                                        .when(!is_model_selected, |button| {
+                                            button.tooltip(Tooltip::text(
+                                                "Select a model to continue",
+                                            ))
                                        })
                                },
                            )),
--- a/crates/assistant2/src/terminal_codegen.rs
+++ b/crates/assistant2/src/terminal_codegen.rs
@@ -1,7 +1,7 @@
 use crate::inline_prompt_editor::CodegenStatus;
 use client::telemetry::Telemetry;
 use futures::{channel::mpsc, SinkExt, StreamExt};
-use gpui::{AppContext, EventEmitter, Model, ModelContext, Task};
+use gpui::{App, Context, Entity, EventEmitter, Task};
 use language_model::{LanguageModelRegistry, LanguageModelRequest};
 use language_models::report_assistant_event;
 use std::{sync::Arc, time::Instant};
@@ -11,7 +11,7 @@ use terminal::Terminal;
 pub struct TerminalCodegen {
    pub status: CodegenStatus,
    pub telemetry: Option<Arc<Telemetry>>,
-    terminal: Model<Terminal>,
+    terminal: Entity<Terminal>,
    generation: Task<()>,
    pub message_id: Option<String>,
    transaction: Option<TerminalTransaction>,
@@ -20,7 +20,7 @@ pub struct TerminalCodegen {
 impl EventEmitter<CodegenEvent> for TerminalCodegen {}

 impl TerminalCodegen {
-    pub fn new(terminal: Model<Terminal>, telemetry: Option<Arc<Telemetry>>) -> Self {
+    pub fn new(terminal: Entity<Terminal>, telemetry: Option<Arc<Telemetry>>) -> Self {
        Self {
            terminal,
            telemetry,
@@ -31,7 +31,7 @@ impl TerminalCodegen {
        }
    }

-    pub fn start(&mut self, prompt: LanguageModelRequest, cx: &mut ModelContext<Self>) {
+    pub fn start(&mut self, prompt: LanguageModelRequest, cx: &mut Context<Self>) {
        let Some(model) = LanguageModelRegistry::read_global(cx).active_model() else {
            return;
        };
@@ -131,20 +131,20 @@ impl TerminalCodegen {
        cx.notify();
    }

-    pub fn stop(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn stop(&mut self, cx: &mut Context<Self>) {
        self.status = CodegenStatus::Done;
        self.generation = Task::ready(());
        cx.emit(CodegenEvent::Finished);
        cx.notify();
    }

-    pub fn complete(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn complete(&mut self, cx: &mut Context<Self>) {
        if let Some(transaction) = self.transaction.take() {
            transaction.complete(cx);
        }
    }

-    pub fn undo(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn undo(&mut self, cx: &mut Context<Self>) {
        if let Some(transaction) = self.transaction.take() {
            transaction.undo(cx);
        }
@@ -160,27 +160,27 @@ pub const CLEAR_INPUT: &str = "\x15";
 const CARRIAGE_RETURN: &str = "\x0d";

 struct TerminalTransaction {
-    terminal: Model<Terminal>,
+    terminal: Entity<Terminal>,
 }

 impl TerminalTransaction {
-    pub fn start(terminal: Model<Terminal>) -> Self {
+    pub fn start(terminal: Entity<Terminal>) -> Self {
        Self { terminal }
    }

-    pub fn push(&mut self, hunk: String, cx: &mut AppContext) {
+    pub fn push(&mut self, hunk: String, cx: &mut App) {
        // Ensure that the assistant cannot accidentally execute commands that are streamed into the terminal
        let input = Self::sanitize_input(hunk);
        self.terminal
            .update(cx, |terminal, _| terminal.input(input));
    }

-    pub fn undo(&self, cx: &mut AppContext) {
+    pub fn undo(&self, cx: &mut App) {
        self.terminal
            .update(cx, |terminal, _| terminal.input(CLEAR_INPUT.to_string()));
    }

-    pub fn complete(&self, cx: &mut AppContext) {
+    pub fn complete(&self, cx: &mut App) {
        self.terminal.update(cx, |terminal, _| {
            terminal.input(CARRIAGE_RETURN.to_string())
        });
--- a/crates/assistant2/src/terminal_inline_assistant.rs
+++ b/crates/assistant2/src/terminal_inline_assistant.rs
@@ -10,10 +10,7 @@ use client::telemetry::Telemetry;
 use collections::{HashMap, VecDeque};
 use editor::{actions::SelectAll, MultiBuffer};
 use fs::Fs;
-use gpui::{
-    AppContext, Context, FocusableView, Global, Model, Subscription, UpdateGlobal, View, WeakModel,
-    WeakView,
-};
+use gpui::{App, Entity, Focusable, Global, Subscription, UpdateGlobal, WeakEntity};
 use language::Buffer;
 use language_model::{
    LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage, Role,
@@ -31,7 +28,7 @@ pub fn init(
    fs: Arc<dyn Fs>,
    prompt_builder: Arc<PromptBuilder>,
    telemetry: Arc<Telemetry>,
-    cx: &mut AppContext,
+    cx: &mut App,
 ) {
    cx.set_global(TerminalInlineAssistant::new(fs, prompt_builder, telemetry));
 }
@@ -68,20 +65,20 @@ impl TerminalInlineAssistant {

    pub fn assist(
        &mut self,
-        terminal_view: &View<TerminalView>,
-        workspace: WeakView<Workspace>,
-        thread_store: Option<WeakModel<ThreadStore>>,
-        cx: &mut WindowContext,
+        terminal_view: &Entity<TerminalView>,
+        workspace: WeakEntity<Workspace>,
+        thread_store: Option<WeakEntity<ThreadStore>>,
+        window: &mut Window,
+        cx: &mut App,
    ) {
        let terminal = terminal_view.read(cx).terminal().clone();
        let assist_id = self.next_assist_id.post_inc();
-        let prompt_buffer = cx.new_model(|cx| {
-            MultiBuffer::singleton(cx.new_model(|cx| Buffer::local(String::new(), cx)), cx)
-        });
-        let context_store = cx.new_model(|_cx| ContextStore::new(workspace.clone()));
-        let codegen = cx.new_model(|_| TerminalCodegen::new(terminal, self.telemetry.clone()));
+        let prompt_buffer =
+            cx.new(|cx| MultiBuffer::singleton(cx.new(|cx| Buffer::local(String::new(), cx)), cx));
+        let context_store = cx.new(|_cx| ContextStore::new(workspace.clone()));
+        let codegen = cx.new(|_| TerminalCodegen::new(terminal, self.telemetry.clone()));

-        let prompt_editor = cx.new_view(|cx| {
+        let prompt_editor = cx.new(|cx| {
            PromptEditor::new_terminal(
                assist_id,
                self.prompt_history.clone(),
@@ -91,6 +88,7 @@ impl TerminalInlineAssistant {
                context_store.clone(),
                workspace.clone(),
                thread_store.clone(),
+                window,
                cx,
            )
        });
@@ -100,7 +98,7 @@ impl TerminalInlineAssistant {
            render: Box::new(move |_| prompt_editor_render.clone().into_any_element()),
        };
        terminal_view.update(cx, |terminal_view, cx| {
-            terminal_view.set_block_below_cursor(block, cx);
+            terminal_view.set_block_below_cursor(block, window, cx);
        });

        let terminal_assistant = TerminalInlineAssist::new(
@@ -109,21 +107,27 @@ impl TerminalInlineAssistant {
            prompt_editor,
            workspace.clone(),
            context_store,
+            window,
            cx,
        );

        self.assists.insert(assist_id, terminal_assistant);

-        self.focus_assist(assist_id, cx);
+        self.focus_assist(assist_id, window, cx);
    }

-    fn focus_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut WindowContext) {
+    fn focus_assist(
+        &mut self,
+        assist_id: TerminalInlineAssistId,
+        window: &mut Window,
+        cx: &mut App,
+    ) {
        let assist = &self.assists[&assist_id];
        if let Some(prompt_editor) = assist.prompt_editor.as_ref() {
            prompt_editor.update(cx, |this, cx| {
                this.editor.update(cx, |editor, cx| {
-                    editor.focus(cx);
-                    editor.select_all(&SelectAll, cx);
+                    window.focus(&editor.focus_handle(cx));
+                    editor.select_all(&SelectAll, window, cx);
                });
            });
        }
@@ -131,9 +135,10 @@ impl TerminalInlineAssistant {

    fn handle_prompt_editor_event(
        &mut self,
-        prompt_editor: View<PromptEditor<TerminalCodegen>>,
+        prompt_editor: Entity<PromptEditor<TerminalCodegen>>,
        event: &PromptEditorEvent,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) {
        let assist_id = prompt_editor.read(cx).id();
        match event {
@@ -144,21 +149,21 @@ impl TerminalInlineAssistant {
                self.stop_assist(assist_id, cx);
            }
            PromptEditorEvent::ConfirmRequested { execute } => {
-                self.finish_assist(assist_id, false, *execute, cx);
+                self.finish_assist(assist_id, false, *execute, window, cx);
            }
            PromptEditorEvent::CancelRequested => {
-                self.finish_assist(assist_id, true, false, cx);
+                self.finish_assist(assist_id, true, false, window, cx);
            }
            PromptEditorEvent::DismissRequested => {
-                self.dismiss_assist(assist_id, cx);
+                self.dismiss_assist(assist_id, window, cx);
            }
            PromptEditorEvent::Resized { height_in_lines } => {
-                self.insert_prompt_editor_into_terminal(assist_id, *height_in_lines, cx);
+                self.insert_prompt_editor_into_terminal(assist_id, *height_in_lines, window, cx);
            }
        }
    }

-    fn start_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut WindowContext) {
+    fn start_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
            assist
        } else {
@@ -196,7 +201,7 @@ impl TerminalInlineAssistant {
        codegen.update(cx, |codegen, cx| codegen.start(request, cx));
    }

-    fn stop_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut WindowContext) {
+    fn stop_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
        let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
            assist
        } else {
@@ -209,7 +214,7 @@ impl TerminalInlineAssistant {
    fn request_for_inline_assist(
        &self,
        assist_id: TerminalInlineAssistId,
-        cx: &mut WindowContext,
+        cx: &mut App,
    ) -> Result<LanguageModelRequest> {
        let assist = self.assists.get(&assist_id).context("invalid assist")?;

@@ -217,7 +222,7 @@ impl TerminalInlineAssistant {
        let (latest_output, working_directory) = assist
            .terminal
            .update(cx, |terminal, cx| {
-                let terminal = terminal.model().read(cx);
+                let terminal = terminal.entity().read(cx);
                let latest_output = terminal.last_n_non_empty_lines(DEFAULT_CONTEXT_LINES);
                let working_directory = terminal
                    .working_directory()
@@ -265,16 +270,17 @@ impl TerminalInlineAssistant {
        assist_id: TerminalInlineAssistId,
        undo: bool,
        execute: bool,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) {
-        self.dismiss_assist(assist_id, cx);
+        self.dismiss_assist(assist_id, window, cx);

        if let Some(assist) = self.assists.remove(&assist_id) {
            assist
                .terminal
                .update(cx, |this, cx| {
                    this.clear_block_below_cursor(cx);
-                    this.focus_handle(cx).focus(cx);
+                    this.focus_handle(cx).focus(window);
                })
                .log_err();

@@ -317,7 +323,8 @@ impl TerminalInlineAssistant {
    fn dismiss_assist(
        &mut self,
        assist_id: TerminalInlineAssistId,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> bool {
        let Some(assist) = self.assists.get_mut(&assist_id) else {
            return false;
@@ -330,7 +337,7 @@ impl TerminalInlineAssistant {
            .terminal
            .update(cx, |this, cx| {
                this.clear_block_below_cursor(cx);
-                this.focus_handle(cx).focus(cx);
+                this.focus_handle(cx).focus(window);
            })
            .is_ok()
    }
@@ -339,7 +346,8 @@ impl TerminalInlineAssistant {
        &mut self,
        assist_id: TerminalInlineAssistId,
        height: u8,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) {
        if let Some(assist) = self.assists.get_mut(&assist_id) {
            if let Some(prompt_editor) = assist.prompt_editor.as_ref().cloned() {
@@ -351,7 +359,7 @@ impl TerminalInlineAssistant {
                            height,
                            render: Box::new(move |_| prompt_editor.clone().into_any_element()),
                        };
-                        terminal.set_block_below_cursor(block, cx);
+                        terminal.set_block_below_cursor(block, window, cx);
                    })
                    .log_err();
            }
@@ -360,22 +368,23 @@ impl TerminalInlineAssistant {
 }

 struct TerminalInlineAssist {
-    terminal: WeakView<TerminalView>,
-    prompt_editor: Option<View<PromptEditor<TerminalCodegen>>>,
-    codegen: Model<TerminalCodegen>,
-    workspace: WeakView<Workspace>,
-    context_store: Model<ContextStore>,
+    terminal: WeakEntity<TerminalView>,
+    prompt_editor: Option<Entity<PromptEditor<TerminalCodegen>>>,
+    codegen: Entity<TerminalCodegen>,
+    workspace: WeakEntity<Workspace>,
+    context_store: Entity<ContextStore>,
    _subscriptions: Vec<Subscription>,
 }

 impl TerminalInlineAssist {
    pub fn new(
        assist_id: TerminalInlineAssistId,
-        terminal: &View<TerminalView>,
-        prompt_editor: View<PromptEditor<TerminalCodegen>>,
-        workspace: WeakView<Workspace>,
-        context_store: Model<ContextStore>,
-        cx: &mut WindowContext,
+        terminal: &Entity<TerminalView>,
+        prompt_editor: Entity<PromptEditor<TerminalCodegen>>,
+        workspace: WeakEntity<Workspace>,
+        context_store: Entity<ContextStore>,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Self {
        let codegen = prompt_editor.read(cx).codegen().clone();
        Self {
@@ -385,12 +394,12 @@ impl TerminalInlineAssist {
            workspace: workspace.clone(),
            context_store,
            _subscriptions: vec![
-                cx.subscribe(&prompt_editor, |prompt_editor, event, cx| {
+                window.subscribe(&prompt_editor, cx, |prompt_editor, event, window, cx| {
                    TerminalInlineAssistant::update_global(cx, |this, cx| {
-                        this.handle_prompt_editor_event(prompt_editor, event, cx)
+                        this.handle_prompt_editor_event(prompt_editor, event, window, cx)
                    })
                }),
-                cx.subscribe(&codegen, move |codegen, event, cx| {
+                window.subscribe(&codegen, cx, move |codegen, event, window, cx| {
                    TerminalInlineAssistant::update_global(cx, |this, cx| match event {
                        CodegenEvent::Finished => {
                            let assist = if let Some(assist) = this.assists.get(&assist_id) {
@@ -419,7 +428,7 @@ impl TerminalInlineAssist {
                            }

                            if assist.prompt_editor.is_none() {
-                                this.finish_assist(assist_id, false, false, cx);
+                                this.finish_assist(assist_id, false, false, window, cx);
                            }
                        }
                    })
--- a/crates/assistant2/src/thread.rs
+++ b/crates/assistant2/src/thread.rs
@@ -6,7 +6,7 @@ use chrono::{DateTime, Utc};
 use collections::{BTreeMap, HashMap, HashSet};
 use futures::future::Shared;
 use futures::{FutureExt as _, StreamExt as _};
-use gpui::{AppContext, EventEmitter, ModelContext, SharedString, Task};
+use gpui::{App, Context, EventEmitter, SharedString, Task};
 use language_model::{
    LanguageModel, LanguageModelCompletionEvent, LanguageModelRegistry, LanguageModelRequest,
    LanguageModelRequestMessage, LanguageModelToolResult, LanguageModelToolUse,
@@ -18,6 +18,7 @@ use util::{post_inc, TryFutureExt as _};
 use uuid::Uuid;

 use crate::context::{attach_context_to_message, ContextId, ContextSnapshot};
+use crate::thread_store::SavedThread;

 #[derive(Debug, Clone, Copy)]
 pub enum RequestKind {
@@ -75,7 +76,7 @@ pub struct Thread {
 }

 impl Thread {
-    pub fn new(tools: Arc<ToolWorkingSet>, _cx: &mut ModelContext<Self>) -> Self {
+    pub fn new(tools: Arc<ToolWorkingSet>, _cx: &mut Context<Self>) -> Self {
        Self {
            id: ThreadId::new(),
            updated_at: Utc::now(),
@@ -94,6 +95,40 @@ impl Thread {
        }
    }

+    pub fn from_saved(
+        id: ThreadId,
+        saved: SavedThread,
+        tools: Arc<ToolWorkingSet>,
+        _cx: &mut Context<Self>,
+    ) -> Self {
+        let next_message_id = MessageId(saved.messages.len());
+
+        Self {
+            id,
+            updated_at: saved.updated_at,
+            summary: Some(saved.summary),
+            pending_summary: Task::ready(None),
+            messages: saved
+                .messages
+                .into_iter()
+                .map(|message| Message {
+                    id: message.id,
+                    role: message.role,
+                    text: message.text,
+                })
+                .collect(),
+            next_message_id,
+            context: BTreeMap::default(),
+            context_by_message: HashMap::default(),
+            completion_count: 0,
+            pending_completions: Vec::new(),
+            tools,
+            tool_uses_by_message: HashMap::default(),
+            tool_results_by_message: HashMap::default(),
+            pending_tool_uses_by_id: HashMap::default(),
+        }
+    }
+
    pub fn id(&self) -> &ThreadId {
        &self.id
    }
@@ -119,7 +154,7 @@ impl Thread {
        self.summary.clone().unwrap_or(DEFAULT)
    }

-    pub fn set_summary(&mut self, summary: impl Into<SharedString>, cx: &mut ModelContext<Self>) {
+    pub fn set_summary(&mut self, summary: impl Into<SharedString>, cx: &mut Context<Self>) {
        self.summary = Some(summary.into());
        cx.emit(ThreadEvent::SummaryChanged);
    }
@@ -159,7 +194,7 @@ impl Thread {
        &mut self,
        text: impl Into<String>,
        context: Vec<ContextSnapshot>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let message_id = self.insert_message(Role::User, text, cx);
        let context_ids = context.iter().map(|context| context.id).collect::<Vec<_>>();
@@ -172,7 +207,7 @@ impl Thread {
        &mut self,
        role: Role,
        text: impl Into<String>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> MessageId {
        let id = self.next_message_id.post_inc();
        self.messages.push(Message {
@@ -209,7 +244,7 @@ impl Thread {
    pub fn to_completion_request(
        &self,
        _request_kind: RequestKind,
-        _cx: &AppContext,
+        _cx: &App,
    ) -> LanguageModelRequest {
        let mut request = LanguageModelRequest {
            messages: vec![],
@@ -279,7 +314,7 @@ impl Thread {
        &mut self,
        request: LanguageModelRequest,
        model: Arc<dyn LanguageModel>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let pending_completion_id = post_inc(&mut self.completion_count);

@@ -404,7 +439,7 @@ impl Thread {
        });
    }

-    pub fn summarize(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn summarize(&mut self, cx: &mut Context<Self>) {
        let Some(provider) = LanguageModelRegistry::read_global(cx).active_provider() else {
            return;
        };
@@ -462,7 +497,7 @@ impl Thread {
        assistant_message_id: MessageId,
        tool_use_id: LanguageModelToolUseId,
        output: Task<Result<String>>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let insert_output_task = cx.spawn(|thread, mut cx| {
            let tool_use_id = tool_use_id.clone();
--- a/crates/assistant2/src/thread_history.rs
+++ b/crates/assistant2/src/thread_history.rs
@@ -1,27 +1,27 @@
 use gpui::{
-    uniform_list, AppContext, FocusHandle, FocusableView, Model, ScrollStrategy,
-    UniformListScrollHandle, WeakView,
+    uniform_list, App, Entity, FocusHandle, Focusable, ScrollStrategy, UniformListScrollHandle,
+    WeakEntity,
 };
 use time::{OffsetDateTime, UtcOffset};
 use ui::{prelude::*, IconButtonShape, ListItem, ListItemSpacing, Tooltip};

-use crate::thread::Thread;
-use crate::thread_store::ThreadStore;
+use crate::thread_store::{SavedThreadMetadata, ThreadStore};
 use crate::{AssistantPanel, RemoveSelectedThread};

 pub struct ThreadHistory {
    focus_handle: FocusHandle,
-    assistant_panel: WeakView<AssistantPanel>,
-    thread_store: Model<ThreadStore>,
+    assistant_panel: WeakEntity<AssistantPanel>,
+    thread_store: Entity<ThreadStore>,
    scroll_handle: UniformListScrollHandle,
    selected_index: usize,
 }

 impl ThreadHistory {
    pub(crate) fn new(
-        assistant_panel: WeakView<AssistantPanel>,
-        thread_store: Model<ThreadStore>,
-        cx: &mut ViewContext<Self>,
+        assistant_panel: WeakEntity<AssistantPanel>,
+        thread_store: Entity<ThreadStore>,
+
+        cx: &mut Context<Self>,
    ) -> Self {
        Self {
            focus_handle: cx.focus_handle(),
@@ -32,74 +32,83 @@ impl ThreadHistory {
        }
    }

-    pub fn select_prev(&mut self, _: &menu::SelectPrev, cx: &mut ViewContext<Self>) {
-        let count = self.thread_store.read(cx).non_empty_len(cx);
-
+    pub fn select_prev(
+        &mut self,
+        _: &menu::SelectPrev,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        let count = self.thread_store.read(cx).thread_count();
        if count > 0 {
            if self.selected_index == 0 {
-                self.set_selected_index(count - 1, cx);
+                self.set_selected_index(count - 1, window, cx);
            } else {
-                self.set_selected_index(self.selected_index - 1, cx);
+                self.set_selected_index(self.selected_index - 1, window, cx);
            }
        }
    }

-    pub fn select_next(&mut self, _: &menu::SelectNext, cx: &mut ViewContext<Self>) {
-        let count = self.thread_store.read(cx).non_empty_len(cx);
-
+    pub fn select_next(
+        &mut self,
+        _: &menu::SelectNext,
+        window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        let count = self.thread_store.read(cx).thread_count();
        if count > 0 {
            if self.selected_index == count - 1 {
-                self.set_selected_index(0, cx);
+                self.set_selected_index(0, window, cx);
            } else {
-                self.set_selected_index(self.selected_index + 1, cx);
+                self.set_selected_index(self.selected_index + 1, window, cx);
            }
        }
    }

-    fn select_first(&mut self, _: &menu::SelectFirst, cx: &mut ViewContext<Self>) {
-        let count = self.thread_store.read(cx).non_empty_len(cx);
+    fn select_first(&mut self, _: &menu::SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
+        let count = self.thread_store.read(cx).thread_count();
        if count > 0 {
-            self.set_selected_index(0, cx);
+            self.set_selected_index(0, window, cx);
        }
    }

-    fn select_last(&mut self, _: &menu::SelectLast, cx: &mut ViewContext<Self>) {
-        let count = self.thread_store.read(cx).non_empty_len(cx);
+    fn select_last(&mut self, _: &menu::SelectLast, window: &mut Window, cx: &mut Context<Self>) {
+        let count = self.thread_store.read(cx).thread_count();
        if count > 0 {
-            self.set_selected_index(count - 1, cx);
+            self.set_selected_index(count - 1, window, cx);
        }
    }

-    fn set_selected_index(&mut self, index: usize, cx: &mut ViewContext<Self>) {
+    fn set_selected_index(&mut self, index: usize, _window: &mut Window, cx: &mut Context<Self>) {
        self.selected_index = index;
        self.scroll_handle
            .scroll_to_item(index, ScrollStrategy::Top);
        cx.notify();
    }

-    fn confirm(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
-        let threads = self.thread_store.update(cx, |this, cx| this.threads(cx));
+    fn confirm(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
+        let threads = self.thread_store.update(cx, |this, _cx| this.threads());

        if let Some(thread) = threads.get(self.selected_index) {
            self.assistant_panel
-                .update(cx, move |this, cx| {
-                    let thread_id = thread.read(cx).id().clone();
-                    this.open_thread(&thread_id, cx)
-                })
+                .update(cx, move |this, cx| this.open_thread(&thread.id, window, cx))
                .ok();

            cx.notify();
        }
    }

-    fn remove_selected_thread(&mut self, _: &RemoveSelectedThread, cx: &mut ViewContext<Self>) {
-        let threads = self.thread_store.update(cx, |this, cx| this.threads(cx));
+    fn remove_selected_thread(
+        &mut self,
+        _: &RemoveSelectedThread,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        let threads = self.thread_store.update(cx, |this, _cx| this.threads());

        if let Some(thread) = threads.get(self.selected_index) {
            self.assistant_panel
                .update(cx, |this, cx| {
-                    let thread_id = thread.read(cx).id().clone();
-                    this.delete_thread(&thread_id, cx);
+                    this.delete_thread(&thread.id, cx);
                })
                .ok();

@@ -108,15 +117,15 @@ impl ThreadHistory {
    }
 }

-impl FocusableView for ThreadHistory {
-    fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
+impl Focusable for ThreadHistory {
+    fn focus_handle(&self, _cx: &App) -> FocusHandle {
        self.focus_handle.clone()
    }
 }

 impl Render for ThreadHistory {
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
-        let threads = self.thread_store.update(cx, |this, cx| this.threads(cx));
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        let threads = self.thread_store.update(cx, |this, _cx| this.threads());
        let selected_index = self.selected_index;

        v_flex()
@@ -145,10 +154,10 @@ impl Render for ThreadHistory {
                } else {
                    history.child(
                        uniform_list(
-                            cx.view().clone(),
+                            cx.entity().clone(),
                            "thread-history",
                            threads.len(),
-                            move |history, range, _cx| {
+                            move |history, range, _window, _cx| {
                                threads[range]
                                    .iter()
                                    .enumerate()
@@ -172,15 +181,15 @@ impl Render for ThreadHistory {

 #[derive(IntoElement)]
 pub struct PastThread {
-    thread: Model<Thread>,
-    assistant_panel: WeakView<AssistantPanel>,
+    thread: SavedThreadMetadata,
+    assistant_panel: WeakEntity<AssistantPanel>,
    selected: bool,
 }

 impl PastThread {
    pub fn new(
-        thread: Model<Thread>,
-        assistant_panel: WeakView<AssistantPanel>,
+        thread: SavedThreadMetadata,
+        assistant_panel: WeakEntity<AssistantPanel>,
        selected: bool,
    ) -> Self {
        Self {
@@ -192,15 +201,11 @@ impl PastThread {
 }

 impl RenderOnce for PastThread {
-    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
-        let (id, summary) = {
-            let thread = self.thread.read(cx);
-            (thread.id().clone(), thread.summary_or_default())
-        };
+    fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
+        let summary = self.thread.summary;

        let thread_timestamp = time_format::format_localized_timestamp(
-            OffsetDateTime::from_unix_timestamp(self.thread.read(cx).updated_at().timestamp())
-                .unwrap(),
+            OffsetDateTime::from_unix_timestamp(self.thread.updated_at.timestamp()).unwrap(),
            OffsetDateTime::now_utc(),
            self.assistant_panel
                .update(cx, |this, _cx| this.local_timezone())
@@ -208,7 +213,7 @@ impl RenderOnce for PastThread {
            time_format::TimestampFormat::EnhancedAbsolute,
        );

-        ListItem::new(("past-thread", self.thread.entity_id()))
+        ListItem::new(SharedString::from(self.thread.id.to_string()))
            .outlined()
            .toggle_state(self.selected)
            .start_slot(
@@ -220,21 +225,21 @@ impl RenderOnce for PastThread {
            .child(Label::new(summary).size(LabelSize::Small).text_ellipsis())
            .end_slot(
                h_flex()
-                    .gap_2()
+                    .gap_1p5()
                    .child(
                        Label::new(thread_timestamp)
-                            .color(Color::Disabled)
-                            .size(LabelSize::Small),
+                            .color(Color::Muted)
+                            .size(LabelSize::XSmall),
                    )
                    .child(
                        IconButton::new("delete", IconName::TrashAlt)
                            .shape(IconButtonShape::Square)
-                            .icon_size(IconSize::Small)
-                            .tooltip(|cx| Tooltip::text("Delete Thread", cx))
+                            .icon_size(IconSize::XSmall)
+                            .tooltip(Tooltip::text("Delete Thread"))
                            .on_click({
                                let assistant_panel = self.assistant_panel.clone();
-                                let id = id.clone();
-                                move |_event, cx| {
+                                let id = self.thread.id.clone();
+                                move |_event, _window, cx| {
                                    assistant_panel
                                        .update(cx, |this, cx| {
                                            this.delete_thread(&id, cx);
@@ -246,11 +251,11 @@ impl RenderOnce for PastThread {
            )
            .on_click({
                let assistant_panel = self.assistant_panel.clone();
-                let id = id.clone();
-                move |_event, cx| {
+                let id = self.thread.id.clone();
+                move |_event, window, cx| {
                    assistant_panel
                        .update(cx, |this, cx| {
-                            this.open_thread(&id, cx);
+                            this.open_thread(&id, window, cx).detach_and_log_err(cx);
                        })
                        .ok();
                }
--- a/crates/assistant2/src/thread_store.rs
+++ b/crates/assistant2/src/thread_store.rs
@@ -1,98 +1,171 @@
+use std::path::PathBuf;
 use std::sync::Arc;

-use anyhow::Result;
+use anyhow::{anyhow, Result};
 use assistant_tool::{ToolId, ToolWorkingSet};
+use chrono::{DateTime, Utc};
 use collections::HashMap;
 use context_server::manager::ContextServerManager;
 use context_server::{ContextServerFactoryRegistry, ContextServerTool};
-use gpui::{prelude::*, AppContext, Model, ModelContext, Task};
+use futures::future::{self, BoxFuture, Shared};
+use futures::FutureExt as _;
+use gpui::{prelude::*, App, BackgroundExecutor, Context, Entity, SharedString, Task};
+use heed::types::SerdeBincode;
+use heed::Database;
+use language_model::Role;
 use project::Project;
-use unindent::Unindent;
+use serde::{Deserialize, Serialize};
 use util::ResultExt as _;

-use crate::thread::{Thread, ThreadId};
+use crate::thread::{MessageId, Thread, ThreadId};

 pub struct ThreadStore {
    #[allow(unused)]
-    project: Model<Project>,
+    project: Entity<Project>,
    tools: Arc<ToolWorkingSet>,
-    context_server_manager: Model<ContextServerManager>,
+    context_server_manager: Entity<ContextServerManager>,
    context_server_tool_ids: HashMap<Arc<str>, Vec<ToolId>>,
-    threads: Vec<Model<Thread>>,
+    threads: Vec<SavedThreadMetadata>,
+    database_future: Shared<BoxFuture<'static, Result<Arc<ThreadsDatabase>, Arc<anyhow::Error>>>>,
 }

 impl ThreadStore {
    pub fn new(
-        project: Model<Project>,
+        project: Entity<Project>,
        tools: Arc<ToolWorkingSet>,
-        cx: &mut AppContext,
-    ) -> Task<Result<Model<Self>>> {
-        cx.spawn(|mut cx| async move {
-            let this = cx.new_model(|cx: &mut ModelContext<Self>| {
-                let context_server_factory_registry =
-                    ContextServerFactoryRegistry::default_global(cx);
-                let context_server_manager = cx.new_model(|cx| {
-                    ContextServerManager::new(context_server_factory_registry, project.clone(), cx)
-                });
+        cx: &mut App,
+    ) -> Result<Entity<Self>> {
+        let this = cx.new(|cx| {
+            let context_server_factory_registry = ContextServerFactoryRegistry::default_global(cx);
+            let context_server_manager = cx.new(|cx| {
+                ContextServerManager::new(context_server_factory_registry, project.clone(), cx)
+            });

-                let mut this = Self {
-                    project,
-                    tools,
-                    context_server_manager,
-                    context_server_tool_ids: HashMap::default(),
-                    threads: Vec::new(),
-                };
-                this.mock_recent_threads(cx);
-                this.register_context_server_handlers(cx);
+            let executor = cx.background_executor().clone();
+            let database_future = executor
+                .spawn({
+                    let executor = executor.clone();
+                    let database_path = paths::support_dir().join("threads/threads-db.0.mdb");
+                    async move { ThreadsDatabase::new(database_path, executor) }
+                })
+                .then(|result| future::ready(result.map(Arc::new).map_err(Arc::new)))
+                .boxed()
+                .shared();

-                this
-            })?;
+            let this = Self {
+                project,
+                tools,
+                context_server_manager,
+                context_server_tool_ids: HashMap::default(),
+                threads: Vec::new(),
+                database_future,
+            };
+            this.register_context_server_handlers(cx);
+            this.reload(cx).detach_and_log_err(cx);

-            Ok(this)
-        })
+            this
+        });
+
+        Ok(this)
    }

-    /// Returns the number of non-empty threads.
-    pub fn non_empty_len(&self, cx: &AppContext) -> usize {
-        self.threads
-            .iter()
-            .filter(|thread| !thread.read(cx).is_empty())
-            .count()
+    /// Returns the number of threads.
+    pub fn thread_count(&self) -> usize {
+        self.threads.len()
    }

-    pub fn threads(&self, cx: &ModelContext<Self>) -> Vec<Model<Thread>> {
-        let mut threads = self
-            .threads
-            .iter()
-            .filter(|thread| !thread.read(cx).is_empty())
-            .cloned()
-            .collect::<Vec<_>>();
-        threads.sort_unstable_by_key(|thread| std::cmp::Reverse(thread.read(cx).updated_at()));
+    pub fn threads(&self) -> Vec<SavedThreadMetadata> {
+        let mut threads = self.threads.iter().cloned().collect::<Vec<_>>();
+        threads.sort_unstable_by_key(|thread| std::cmp::Reverse(thread.updated_at));
        threads
    }

-    pub fn recent_threads(&self, limit: usize, cx: &ModelContext<Self>) -> Vec<Model<Thread>> {
-        self.threads(cx).into_iter().take(limit).collect()
+    pub fn recent_threads(&self, limit: usize) -> Vec<SavedThreadMetadata> {
+        self.threads().into_iter().take(limit).collect()
    }

-    pub fn create_thread(&mut self, cx: &mut ModelContext<Self>) -> Model<Thread> {
-        let thread = cx.new_model(|cx| Thread::new(self.tools.clone(), cx));
-        self.threads.push(thread.clone());
-        thread
+    pub fn create_thread(&mut self, cx: &mut Context<Self>) -> Entity<Thread> {
+        cx.new(|cx| Thread::new(self.tools.clone(), cx))
    }

-    pub fn open_thread(&self, id: &ThreadId, cx: &mut ModelContext<Self>) -> Option<Model<Thread>> {
-        self.threads
-            .iter()
-            .find(|thread| thread.read(cx).id() == id)
-            .cloned()
+    pub fn open_thread(
+        &self,
+        id: &ThreadId,
+        cx: &mut Context<Self>,
+    ) -> Task<Result<Entity<Thread>>> {
+        let id = id.clone();
+        let database_future = self.database_future.clone();
+        cx.spawn(|this, mut cx| async move {
+            let database = database_future.await.map_err(|err| anyhow!(err))?;
+            let thread = database
+                .try_find_thread(id.clone())
+                .await?
+                .ok_or_else(|| anyhow!("no thread found with ID: {id:?}"))?;
+
+            this.update(&mut cx, |this, cx| {
+                cx.new(|cx| Thread::from_saved(id.clone(), thread, this.tools.clone(), cx))
+            })
+        })
    }

-    pub fn delete_thread(&mut self, id: &ThreadId, cx: &mut ModelContext<Self>) {
-        self.threads.retain(|thread| thread.read(cx).id() != id);
+    pub fn save_thread(&self, thread: &Entity<Thread>, cx: &mut Context<Self>) -> Task<Result<()>> {
+        let (metadata, thread) = thread.update(cx, |thread, _cx| {
+            let id = thread.id().clone();
+            let thread = SavedThread {
+                summary: thread.summary_or_default(),
+                updated_at: thread.updated_at(),
+                messages: thread
+                    .messages()
+                    .map(|message| SavedMessage {
+                        id: message.id,
+                        role: message.role,
+                        text: message.text.clone(),
+                    })
+                    .collect(),
+            };
+
+            (id, thread)
+        });
+
+        let database_future = self.database_future.clone();
+        cx.spawn(|this, mut cx| async move {
+            let database = database_future.await.map_err(|err| anyhow!(err))?;
+            database.save_thread(metadata, thread).await?;
+
+            this.update(&mut cx, |this, cx| this.reload(cx))?.await
+        })
    }

-    fn register_context_server_handlers(&self, cx: &mut ModelContext<Self>) {
+    pub fn delete_thread(&mut self, id: &ThreadId, cx: &mut Context<Self>) -> Task<Result<()>> {
+        let id = id.clone();
+        let database_future = self.database_future.clone();
+        cx.spawn(|this, mut cx| async move {
+            let database = database_future.await.map_err(|err| anyhow!(err))?;
+            database.delete_thread(id.clone()).await?;
+
+            this.update(&mut cx, |this, _cx| {
+                this.threads.retain(|thread| thread.id != id)
+            })
+        })
+    }
+
+    fn reload(&self, cx: &mut Context<Self>) -> Task<Result<()>> {
+        let database_future = self.database_future.clone();
+        cx.spawn(|this, mut cx| async move {
+            let threads = database_future
+                .await
+                .map_err(|err| anyhow!(err))?
+                .list_threads()
+                .await?;
+
+            this.update(&mut cx, |this, cx| {
+                this.threads = threads;
+                cx.notify();
+            })
+        })
+    }
+
+    fn register_context_server_handlers(&self, cx: &mut Context<Self>) {
        cx.subscribe(
            &self.context_server_manager.clone(),
            Self::handle_context_server_event,
@@ -102,9 +175,9 @@ impl ThreadStore {

    fn handle_context_server_event(
        &mut self,
-        context_server_manager: Model<ContextServerManager>,
+        context_server_manager: Entity<ContextServerManager>,
        event: &context_server::manager::Event,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let tool_working_set = self.tools.clone();
        match event {
@@ -159,133 +232,108 @@ impl ThreadStore {
    }
 }

-impl ThreadStore {
-    /// Creates some mocked recent threads for testing purposes.
-    fn mock_recent_threads(&mut self, cx: &mut ModelContext<Self>) {
-        use language_model::Role;
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct SavedThreadMetadata {
+    pub id: ThreadId,
+    pub summary: SharedString,
+    pub updated_at: DateTime<Utc>,
+}

-        self.threads.push(cx.new_model(|cx| {
-            let mut thread = Thread::new(self.tools.clone(), cx);
-            thread.set_summary("Introduction to quantum computing", cx);
-            thread.insert_user_message("Hello! Can you help me understand quantum computing?", Vec::new(), cx);
-            thread.insert_message(Role::Assistant, "Of course! I'd be happy to help you understand quantum computing. Quantum computing is a fascinating field that uses the principles of quantum mechanics to process information. Unlike classical computers that use bits (0s and 1s), quantum computers use quantum bits or 'qubits'. These qubits can exist in multiple states simultaneously, a property called superposition. This allows quantum computers to perform certain calculations much faster than classical computers. What specific aspect of quantum computing would you like to know more about?", cx);
-            thread.insert_user_message("That's interesting! Can you explain how quantum entanglement is used in quantum computing?", Vec::new(), cx);
-            thread.insert_message(Role::Assistant, "Certainly! Quantum entanglement is a key principle used in quantum computing. When two qubits become entangled, the state of one qubit is directly related to the state of the other, regardless of the distance between them. This property is used in quantum computing to create complex quantum states and to perform operations on multiple qubits simultaneously. Entanglement allows quantum computers to process information in ways that classical computers cannot, potentially solving certain problems much more efficiently. For example, it's crucial in quantum error correction and in algorithms like quantum teleportation, which is important for quantum communication.", cx);
-            thread
-        }));
+#[derive(Serialize, Deserialize)]
+pub struct SavedThread {
+    pub summary: SharedString,
+    pub updated_at: DateTime<Utc>,
+    pub messages: Vec<SavedMessage>,
+}

-        self.threads.push(cx.new_model(|cx| {
-            let mut thread = Thread::new(self.tools.clone(), cx);
-            thread.set_summary("Rust web development and async programming", cx);
-            thread.insert_user_message("Can you show me an example of Rust code for a simple web server?", Vec::new(), cx);
-            thread.insert_message(Role::Assistant, "Certainly! Here's an example of a simple web server in Rust using the `actix-web` framework:
+#[derive(Serialize, Deserialize)]
+pub struct SavedMessage {
+    pub id: MessageId,
+    pub role: Role,
+    pub text: String,
+}

-        ```rust
-        use actix_web::{web, App, HttpResponse, HttpServer, Responder};
+struct ThreadsDatabase {
+    executor: BackgroundExecutor,
+    env: heed::Env,
+    threads: Database<SerdeBincode<ThreadId>, SerdeBincode<SavedThread>>,
+}

-        async fn hello() -> impl Responder {
-            HttpResponse::Ok().body(\"Hello, World!\")
-        }
+impl ThreadsDatabase {
+    pub fn new(path: PathBuf, executor: BackgroundExecutor) -> Result<Self> {
+        std::fs::create_dir_all(&path)?;

-        #[actix_web::main]
-        async fn main() -> std::io::Result<()> {
-            HttpServer::new(|| {
-                App::new()
-                    .route(\"/\", web::get().to(hello))
-            })
-            .bind(\"127.0.0.1:8080\")?
-            .run()
-            .await
-        }
-        ```
+        const ONE_GB_IN_BYTES: usize = 1024 * 1024 * 1024;
+        let env = unsafe {
+            heed::EnvOpenOptions::new()
+                .map_size(ONE_GB_IN_BYTES)
+                .max_dbs(1)
+                .open(path)?
+        };

-        This code creates a basic web server that responds with 'Hello, World!' when you access the root URL. Here's a breakdown of what's happening:
+        let mut txn = env.write_txn()?;
+        let threads = env.create_database(&mut txn, Some("threads"))?;
+        txn.commit()?;

-        1. We import necessary items from the `actix-web` crate.
-        2. We define an async `hello` function that returns a simple HTTP response.
-        3. In the `main` function, we set up the server to listen on `127.0.0.1:8080`.
-        4. We configure the app to respond to GET requests on the root path with our `hello` function.
+        Ok(Self {
+            executor,
+            env,
+            threads,
+        })
+    }

-        To run this, you'd need to add `actix-web` to your `Cargo.toml` dependencies:
+    pub fn list_threads(&self) -> Task<Result<Vec<SavedThreadMetadata>>> {
+        let env = self.env.clone();
+        let threads = self.threads;

-        ```toml
-        [dependencies]
-        actix-web = \"4.0\"
-        ```
-
-        Then you can run the server with `cargo run` and access it at `http://localhost:8080`.".unindent(), cx);
-            thread.insert_user_message("That's great! Can you explain more about async functions in Rust?", Vec::new(), cx);
-            thread.insert_message(Role::Assistant, "Certainly! Async functions are a key feature in Rust for writing efficient, non-blocking code, especially for I/O-bound operations. Here's an overview:
-
-        1. **Syntax**: Async functions are declared using the `async` keyword:
-
-           ```rust
-           async fn my_async_function() -> Result<(), Error> {
-               // Asynchronous code here
-           }
-           ```
-
-        2. **Futures**: Async functions return a `Future`. A `Future` represents a value that may not be available yet but will be at some point.
-
-        3. **Await**: Inside an async function, you can use the `.await` syntax to wait for other async operations to complete:
-
-           ```rust
-           async fn fetch_data() -> Result<String, Error> {
-               let response = make_http_request().await?;
-               let data = process_response(response).await?;
-               Ok(data)
-           }
-           ```
-
-        4. **Non-blocking**: Async functions allow the runtime to work on other tasks while waiting for I/O or other operations to complete, making efficient use of system resources.
-
-        5. **Runtime**: To execute async code, you need a runtime like `tokio` or `async-std`. Actix-web, which we used in the previous example, includes its own runtime.
-
-        6. **Error Handling**: Async functions work well with Rust's `?` operator for error handling.
-
-        Async programming in Rust provides a powerful way to write concurrent code that's both safe and efficient. It's particularly useful for servers, network programming, and any application that deals with many concurrent operations.".unindent(), cx);
-            thread
-        }));
-
-        self.threads.push(cx.new_model(|cx| {
-            let mut thread = Thread::new(self.tools.clone(), cx);
-            thread.set_summary("Rust code with long lines", cx);
-            thread.insert_user_message("Could you write me some Rust code with long lines?", Vec::new(), cx);
-            thread.insert_message(Role::Assistant, r#"Here's some Rust code with some intentionally long lines:
-            ```rust
-            use std::collections::{HashMap, HashSet};
-            use std::sync::{Arc, Mutex};
-            use std::thread;
-
-            fn main() {
-                let very_long_vector = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25];
-
-                let complicated_hashmap: HashMap<String, Vec<(i32, f64, String)>> = [("key1".to_string(), vec![(1, 1.1, "value1".to_string()), (2, 2.2, "value2".to_string())]), ("key2".to_string(), vec![(3, 3.3, "value3".to_string()), (4, 4.4, "value4".to_string())])].iter().cloned().collect();
-
-                let nested_structure = Arc::new(Mutex::new(HashMap::new()));
-
-                let long_closure = |x: i32, y: i32, z: i32| -> i32 { let result = x * y + z; println!("The result of the long closure calculation is: {}", result); result };
-
-                let thread_handles: Vec<_> = (0..10).map(|i| {
-                    let nested_structure_clone = Arc::clone(&nested_structure);
-                    thread::spawn(move || {
-                        let mut lock = nested_structure_clone.lock().unwrap();
-                        lock.entry(format!("thread_{}", i)).or_insert_with(|| HashSet::new()).insert(i * i);
-                    })
-                }).collect();
-
-                for handle in thread_handles {
-                    handle.join().unwrap();
-                }
-
-                println!("The final state of the nested structure is: {:?}", nested_structure.lock().unwrap());
-
-                let complex_expression = very_long_vector.iter().filter(|&&x| x % 2 == 0).map(|&x| x * x).fold(0, |acc, x| acc + x) + long_closure(5, 10, 15);
-
-                println!("The result of the complex expression is: {}", complex_expression);
+        self.executor.spawn(async move {
+            let txn = env.read_txn()?;
+            let mut iter = threads.iter(&txn)?;
+            let mut threads = Vec::new();
+            while let Some((key, value)) = iter.next().transpose()? {
+                threads.push(SavedThreadMetadata {
+                    id: key,
+                    summary: value.summary,
+                    updated_at: value.updated_at,
+                });
            }
-            ```"#.unindent(), cx);
-            thread
-        }));
+
+            Ok(threads)
+        })
+    }
+
+    pub fn try_find_thread(&self, id: ThreadId) -> Task<Result<Option<SavedThread>>> {
+        let env = self.env.clone();
+        let threads = self.threads;
+
+        self.executor.spawn(async move {
+            let txn = env.read_txn()?;
+            let thread = threads.get(&txn, &id)?;
+            Ok(thread)
+        })
+    }
+
+    pub fn save_thread(&self, id: ThreadId, thread: SavedThread) -> Task<Result<()>> {
+        let env = self.env.clone();
+        let threads = self.threads;
+
+        self.executor.spawn(async move {
+            let mut txn = env.write_txn()?;
+            threads.put(&mut txn, &id, &thread)?;
+            txn.commit()?;
+            Ok(())
+        })
+    }
+
+    pub fn delete_thread(&self, id: ThreadId) -> Task<Result<()>> {
+        let env = self.env.clone();
+        let threads = self.threads;
+
+        self.executor.spawn(async move {
+            let mut txn = env.write_txn()?;
+            threads.delete(&mut txn, &id)?;
+            txn.commit()?;
+            Ok(())
+        })
    }
 }
--- a/crates/assistant2/src/ui/context_pill.rs
+++ b/crates/assistant2/src/ui/context_pill.rs
@@ -11,15 +11,15 @@ pub enum ContextPill {
        context: ContextSnapshot,
        dupe_name: bool,
        focused: bool,
-        on_click: Option<Rc<dyn Fn(&ClickEvent, &mut WindowContext)>>,
-        on_remove: Option<Rc<dyn Fn(&ClickEvent, &mut WindowContext)>>,
+        on_click: Option<Rc<dyn Fn(&ClickEvent, &mut Window, &mut App)>>,
+        on_remove: Option<Rc<dyn Fn(&ClickEvent, &mut Window, &mut App)>>,
    },
    Suggested {
        name: SharedString,
        icon_path: Option<SharedString>,
        kind: ContextKind,
        focused: bool,
-        on_click: Option<Rc<dyn Fn(&ClickEvent, &mut WindowContext)>>,
+        on_click: Option<Rc<dyn Fn(&ClickEvent, &mut Window, &mut App)>>,
    },
 }

@@ -28,7 +28,7 @@ impl ContextPill {
        context: ContextSnapshot,
        dupe_name: bool,
        focused: bool,
-        on_remove: Option<Rc<dyn Fn(&ClickEvent, &mut WindowContext)>>,
+        on_remove: Option<Rc<dyn Fn(&ClickEvent, &mut Window, &mut App)>>,
    ) -> Self {
        Self::Added {
            context,
@@ -54,7 +54,7 @@ impl ContextPill {
        }
    }

-    pub fn on_click(mut self, listener: Rc<dyn Fn(&ClickEvent, &mut WindowContext)>) -> Self {
+    pub fn on_click(mut self, listener: Rc<dyn Fn(&ClickEvent, &mut Window, &mut App)>) -> Self {
        match &mut self {
            ContextPill::Added { on_click, .. } => {
                *on_click = Some(listener);
@@ -95,7 +95,7 @@ impl ContextPill {
 }

 impl RenderOnce for ContextPill {
-    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
+    fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
        let color = cx.theme().colors();

        let base_pill = h_flex()
@@ -139,7 +139,7 @@ impl RenderOnce for ContextPill {
                            }
                        })
                        .when_some(context.tooltip.clone(), |element, tooltip| {
-                            element.tooltip(move |cx| Tooltip::text(tooltip.clone(), cx))
+                            element.tooltip(Tooltip::text(tooltip.clone()))
                        }),
                )
                .when_some(on_remove.as_ref(), |element, on_remove| {
@@ -147,16 +147,16 @@ impl RenderOnce for ContextPill {
                        IconButton::new(("remove", context.id.0), IconName::Close)
                            .shape(IconButtonShape::Square)
                            .icon_size(IconSize::XSmall)
-                            .tooltip(|cx| Tooltip::text("Remove Context", cx))
+                            .tooltip(Tooltip::text("Remove Context"))
                            .on_click({
                                let on_remove = on_remove.clone();
-                                move |event, cx| on_remove(event, cx)
+                                move |event, window, cx| on_remove(event, window, cx)
                            }),
                    )
                })
                .when_some(on_click.as_ref(), |element, on_click| {
                    let on_click = on_click.clone();
-                    element.on_click(move |event, cx| on_click(event, cx))
+                    element.on_click(move |event, window, cx| on_click(event, window, cx))
                }),
            ContextPill::Suggested {
                name,
@@ -195,10 +195,12 @@ impl RenderOnce for ContextPill {
                        .size(IconSize::XSmall)
                        .into_any_element(),
                )
-                .tooltip(|cx| Tooltip::with_meta("Suggested Context", None, "Click to add it", cx))
+                .tooltip(|window, cx| {
+                    Tooltip::with_meta("Suggested Context", None, "Click to add it", window, cx)
+                })
                .when_some(on_click.as_ref(), |element, on_click| {
                    let on_click = on_click.clone();
-                    element.on_click(move |event, cx| on_click(event, cx))
+                    element.on_click(move |event, window, cx| on_click(event, window, cx))
                }),
        }
    }
--- a/crates/assistant_context_editor/src/assistant_context_editor.rs
+++ b/crates/assistant_context_editor/src/assistant_context_editor.rs
@@ -9,7 +9,7 @@ mod slash_command_picker;
 use std::sync::Arc;

 use client::Client;
-use gpui::AppContext;
+use gpui::App;

 pub use crate::context::*;
 pub use crate::context_editor::*;
@@ -18,6 +18,6 @@ pub use crate::context_store::*;
 pub use crate::patch::*;
 pub use crate::slash_command::*;

-pub fn init(client: Arc<Client>, _cx: &mut AppContext) {
+pub fn init(client: Arc<Client>, _cx: &mut App) {
    context_store::init(&client.into());
 }
--- a/crates/assistant_context_editor/src/context.rs
+++ b/crates/assistant_context_editor/src/context.rs
@@ -16,8 +16,8 @@ use feature_flags::{FeatureFlagAppExt, ToolUseFeatureFlag};
 use fs::{Fs, RemoveOptions};
 use futures::{future::Shared, FutureExt, StreamExt};
 use gpui::{
-    AppContext, Context as _, EventEmitter, Model, ModelContext, RenderImage, SharedString,
-    Subscription, Task,
+    App, AppContext as _, Context, Entity, EventEmitter, RenderImage, SharedString, Subscription,
+    Task,
 };
 use language::{AnchorRangeExt, Bias, Buffer, LanguageRegistry, OffsetRangeExt, Point, ToOffset};
 use language_model::{
@@ -588,13 +588,13 @@ pub enum XmlTagKind {
    Operation,
 }

-pub struct Context {
+pub struct AssistantContext {
    id: ContextId,
    timestamp: clock::Lamport,
    version: clock::Global,
    pending_ops: Vec<ContextOperation>,
    operations: Vec<ContextOperation>,
-    buffer: Model<Buffer>,
+    buffer: Entity<Buffer>,
    parsed_slash_commands: Vec<ParsedSlashCommand>,
    invoked_slash_commands: HashMap<InvokedSlashCommandId, InvokedSlashCommand>,
    edits_since_last_parse: language::Subscription,
@@ -619,7 +619,7 @@ pub struct Context {
    language_registry: Arc<LanguageRegistry>,
    patches: Vec<AssistantPatch>,
    xml_tags: Vec<XmlTag>,
-    project: Option<Model<Project>>,
+    project: Option<Entity<Project>>,
    prompt_builder: Arc<PromptBuilder>,
 }

@@ -645,17 +645,17 @@ impl ContextAnnotation for XmlTag {
    }
 }

-impl EventEmitter<ContextEvent> for Context {}
+impl EventEmitter<ContextEvent> for AssistantContext {}

-impl Context {
+impl AssistantContext {
    pub fn local(
        language_registry: Arc<LanguageRegistry>,
-        project: Option<Model<Project>>,
+        project: Option<Entity<Project>>,
        telemetry: Option<Arc<Telemetry>>,
        prompt_builder: Arc<PromptBuilder>,
        slash_commands: Arc<SlashCommandWorkingSet>,
        tools: Arc<ToolWorkingSet>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Self {
        Self::new(
            ContextId::new(),
@@ -680,11 +680,11 @@ impl Context {
        prompt_builder: Arc<PromptBuilder>,
        slash_commands: Arc<SlashCommandWorkingSet>,
        tools: Arc<ToolWorkingSet>,
-        project: Option<Model<Project>>,
+        project: Option<Entity<Project>>,
        telemetry: Option<Arc<Telemetry>>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Self {
-        let buffer = cx.new_model(|_cx| {
+        let buffer = cx.new(|_cx| {
            let buffer = Buffer::remote(
                language::BufferId::new(1).unwrap(),
                replica_id,
@@ -755,7 +755,7 @@ impl Context {
        this
    }

-    pub(crate) fn serialize(&self, cx: &AppContext) -> SavedContext {
+    pub(crate) fn serialize(&self, cx: &App) -> SavedContext {
        let buffer = self.buffer.read(cx);
        SavedContext {
            id: Some(self.id.clone()),
@@ -803,9 +803,9 @@ impl Context {
        prompt_builder: Arc<PromptBuilder>,
        slash_commands: Arc<SlashCommandWorkingSet>,
        tools: Arc<ToolWorkingSet>,
-        project: Option<Model<Project>>,
+        project: Option<Entity<Project>>,
        telemetry: Option<Arc<Telemetry>>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Self {
        let id = saved_context.id.clone().unwrap_or_else(ContextId::new);
        let mut this = Self::new(
@@ -837,7 +837,7 @@ impl Context {
        self.timestamp.replica_id
    }

-    pub fn version(&self, cx: &AppContext) -> ContextVersion {
+    pub fn version(&self, cx: &App) -> ContextVersion {
        ContextVersion {
            context: self.version.clone(),
            buffer: self.buffer.read(cx).version(),
@@ -852,11 +852,7 @@ impl Context {
        &self.tools
    }

-    pub fn set_capability(
-        &mut self,
-        capability: language::Capability,
-        cx: &mut ModelContext<Self>,
-    ) {
+    pub fn set_capability(&mut self, capability: language::Capability, cx: &mut Context<Self>) {
        self.buffer
            .update(cx, |buffer, cx| buffer.set_capability(capability, cx));
    }
@@ -870,7 +866,7 @@ impl Context {
    pub fn serialize_ops(
        &self,
        since: &ContextVersion,
-        cx: &AppContext,
+        cx: &App,
    ) -> Task<Vec<proto::ContextOperation>> {
        let buffer_ops = self
            .buffer
@@ -905,7 +901,7 @@ impl Context {
    pub fn apply_ops(
        &mut self,
        ops: impl IntoIterator<Item = ContextOperation>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let mut buffer_ops = Vec::new();
        for op in ops {
@@ -919,7 +915,7 @@ impl Context {
        self.flush_ops(cx);
    }

-    fn flush_ops(&mut self, cx: &mut ModelContext<Context>) {
+    fn flush_ops(&mut self, cx: &mut Context<AssistantContext>) {
        let mut changed_messages = HashSet::default();
        let mut summary_changed = false;

@@ -1038,7 +1034,7 @@ impl Context {
        }
    }

-    fn can_apply_op(&self, op: &ContextOperation, cx: &AppContext) -> bool {
+    fn can_apply_op(&self, op: &ContextOperation, cx: &App) -> bool {
        if !self.version.observed_all(op.version()) {
            return false;
        }
@@ -1069,7 +1065,7 @@ impl Context {
    fn has_received_operations_for_anchor_range(
        &self,
        range: Range<text::Anchor>,
-        cx: &AppContext,
+        cx: &App,
    ) -> bool {
        let version = &self.buffer.read(cx).version;
        let observed_start = range.start == language::Anchor::MIN
@@ -1081,12 +1077,12 @@ impl Context {
        observed_start && observed_end
    }

-    fn push_op(&mut self, op: ContextOperation, cx: &mut ModelContext<Self>) {
+    fn push_op(&mut self, op: ContextOperation, cx: &mut Context<Self>) {
        self.operations.push(op.clone());
        cx.emit(ContextEvent::Operation(op));
    }

-    pub fn buffer(&self) -> &Model<Buffer> {
+    pub fn buffer(&self) -> &Entity<Buffer> {
        &self.buffer
    }

@@ -1094,7 +1090,7 @@ impl Context {
        self.language_registry.clone()
    }

-    pub fn project(&self) -> Option<Model<Project>> {
+    pub fn project(&self) -> Option<Entity<Project>> {
        self.project.clone()
    }

@@ -1110,7 +1106,7 @@ impl Context {
        self.summary.as_ref()
    }

-    pub fn patch_containing(&self, position: Point, cx: &AppContext) -> Option<&AssistantPatch> {
+    pub fn patch_containing(&self, position: Point, cx: &App) -> Option<&AssistantPatch> {
        let buffer = self.buffer.read(cx);
        let index = self.patches.binary_search_by(|patch| {
            let patch_range = patch.range.to_point(&buffer);
@@ -1136,7 +1132,7 @@ impl Context {
    pub fn patch_for_range(
        &self,
        range: &Range<language::Anchor>,
-        cx: &AppContext,
+        cx: &App,
    ) -> Option<&AssistantPatch> {
        let buffer = self.buffer.read(cx);
        let index = self.patch_index_for_range(range, buffer).ok()?;
@@ -1167,7 +1163,7 @@ impl Context {
        &self.slash_command_output_sections
    }

-    pub fn contains_files(&self, cx: &AppContext) -> bool {
+    pub fn contains_files(&self, cx: &App) -> bool {
        let buffer = self.buffer.read(cx);
        self.slash_command_output_sections.iter().any(|section| {
            section.is_valid(buffer)
@@ -1189,7 +1185,7 @@ impl Context {
        self.pending_tool_uses_by_id.get(id)
    }

-    fn set_language(&mut self, cx: &mut ModelContext<Self>) {
+    fn set_language(&mut self, cx: &mut Context<Self>) {
        let markdown = self.language_registry.language_for_name("Markdown");
        cx.spawn(|this, mut cx| async move {
            let markdown = markdown.await?;
@@ -1203,9 +1199,9 @@ impl Context {

    fn handle_buffer_event(
        &mut self,
-        _: Model<Buffer>,
+        _: Entity<Buffer>,
        event: &language::BufferEvent,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        match event {
            language::BufferEvent::Operation {
@@ -1227,7 +1223,7 @@ impl Context {
        self.token_count
    }

-    pub(crate) fn count_remaining_tokens(&mut self, cx: &mut ModelContext<Self>) {
+    pub(crate) fn count_remaining_tokens(&mut self, cx: &mut Context<Self>) {
        // Assume it will be a Chat request, even though that takes fewer tokens (and risks going over the limit),
        // because otherwise you see in the UI that your empty message has a bunch of tokens already used.
        let request = self.to_completion_request(RequestType::Chat, cx);
@@ -1255,7 +1251,7 @@ impl Context {
        &mut self,
        cache_configuration: &Option<LanguageModelCacheConfiguration>,
        speculative: bool,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> bool {
        let cache_configuration =
            cache_configuration
@@ -1357,7 +1353,7 @@ impl Context {
        new_anchor_needs_caching
    }

-    fn start_cache_warming(&mut self, model: &Arc<dyn LanguageModel>, cx: &mut ModelContext<Self>) {
+    fn start_cache_warming(&mut self, model: &Arc<dyn LanguageModel>, cx: &mut Context<Self>) {
        let cache_configuration = model.cache_configuration();

        if !self.mark_cache_anchors(&cache_configuration, true, cx) {
@@ -1407,7 +1403,7 @@ impl Context {
        });
    }

-    pub fn update_cache_status_for_completion(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn update_cache_status_for_completion(&mut self, cx: &mut Context<Self>) {
        let cached_message_ids: Vec<MessageId> = self
            .messages_metadata
            .iter()
@@ -1432,7 +1428,7 @@ impl Context {
        cx.notify();
    }

-    pub fn reparse(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn reparse(&mut self, cx: &mut Context<Self>) {
        let buffer = self.buffer.read(cx).text_snapshot();
        let mut row_ranges = self
            .edits_since_last_parse
@@ -1505,7 +1501,7 @@ impl Context {
        buffer: &BufferSnapshot,
        updated: &mut Vec<ParsedSlashCommand>,
        removed: &mut Vec<Range<text::Anchor>>,
-        cx: &AppContext,
+        cx: &App,
    ) {
        let old_range = self.pending_command_indices_for_range(range.clone(), cx);

@@ -1559,7 +1555,7 @@ impl Context {
    fn invalidate_pending_slash_commands(
        &mut self,
        buffer: &BufferSnapshot,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let mut invalidated_command_ids = Vec::new();
        for (&command_id, command) in self.invoked_slash_commands.iter_mut() {
@@ -1593,7 +1589,7 @@ impl Context {
        buffer: &BufferSnapshot,
        updated: &mut Vec<Range<text::Anchor>>,
        removed: &mut Vec<Range<text::Anchor>>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        // Rebuild the XML tags in the edited range.
        let intersecting_tags_range =
@@ -1636,7 +1632,7 @@ impl Context {
        &self,
        buffer: &BufferSnapshot,
        range: Range<text::Anchor>,
-        cx: &AppContext,
+        cx: &App,
    ) -> Vec<XmlTag> {
        let mut messages = self.messages(cx).peekable();

@@ -1693,7 +1689,7 @@ impl Context {
        tags_start_ix: usize,
        buffer_end: text::Anchor,
        buffer: &BufferSnapshot,
-        cx: &AppContext,
+        cx: &App,
    ) -> Vec<AssistantPatch> {
        let mut new_patches = Vec::new();
        let mut pending_patch = None;
@@ -1851,7 +1847,7 @@ impl Context {
    pub fn pending_command_for_position(
        &mut self,
        position: language::Anchor,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Option<&mut ParsedSlashCommand> {
        let buffer = self.buffer.read(cx);
        match self
@@ -1875,7 +1871,7 @@ impl Context {
    pub fn pending_commands_for_range(
        &self,
        range: Range<language::Anchor>,
-        cx: &AppContext,
+        cx: &App,
    ) -> &[ParsedSlashCommand] {
        let range = self.pending_command_indices_for_range(range, cx);
        &self.parsed_slash_commands[range]
@@ -1884,7 +1880,7 @@ impl Context {
    fn pending_command_indices_for_range(
        &self,
        range: Range<language::Anchor>,
-        cx: &AppContext,
+        cx: &App,
    ) -> Range<usize> {
        self.indices_intersecting_buffer_range(&self.parsed_slash_commands, range, cx)
    }
@@ -1893,7 +1889,7 @@ impl Context {
        &self,
        all_annotations: &[T],
        range: Range<language::Anchor>,
-        cx: &AppContext,
+        cx: &App,
    ) -> Range<usize> {
        let buffer = self.buffer.read(cx);
        let start_ix = match all_annotations
@@ -1916,7 +1912,7 @@ impl Context {
        name: &str,
        output: Task<SlashCommandResult>,
        ensure_trailing_newline: bool,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let version = self.version.clone();
        let command_id = InvokedSlashCommandId(self.next_timestamp());
@@ -2184,7 +2180,7 @@ impl Context {
    fn insert_slash_command_output_section(
        &mut self,
        section: SlashCommandOutputSection<language::Anchor>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let buffer = self.buffer.read(cx);
        let insertion_ix = match self
@@ -2214,7 +2210,7 @@ impl Context {
        &mut self,
        tool_use_id: LanguageModelToolUseId,
        output: Task<Result<String>>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let insert_output_task = cx.spawn(|this, mut cx| {
            let tool_use_id = tool_use_id.clone();
@@ -2272,11 +2268,11 @@ impl Context {
        }
    }

-    pub fn completion_provider_changed(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn completion_provider_changed(&mut self, cx: &mut Context<Self>) {
        self.count_remaining_tokens(cx);
    }

-    fn get_last_valid_message_id(&self, cx: &ModelContext<Self>) -> Option<MessageId> {
+    fn get_last_valid_message_id(&self, cx: &Context<Self>) -> Option<MessageId> {
        self.message_anchors.iter().rev().find_map(|message| {
            message
                .start
@@ -2288,7 +2284,7 @@ impl Context {
    pub fn assist(
        &mut self,
        request_type: RequestType,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Option<MessageAnchor> {
        let model_registry = LanguageModelRegistry::read_global(cx);
        let provider = model_registry.active_provider()?;
@@ -2519,7 +2515,7 @@ impl Context {
    pub fn to_completion_request(
        &self,
        request_type: RequestType,
-        cx: &AppContext,
+        cx: &App,
    ) -> LanguageModelRequest {
        let buffer = self.buffer.read(cx);

@@ -2631,7 +2627,7 @@ impl Context {
        completion_request
    }

-    pub fn cancel_last_assist(&mut self, cx: &mut ModelContext<Self>) -> bool {
+    pub fn cancel_last_assist(&mut self, cx: &mut Context<Self>) -> bool {
        if let Some(pending_completion) = self.pending_completions.pop() {
            self.update_metadata(pending_completion.assistant_message_id, cx, |metadata| {
                if metadata.status == MessageStatus::Pending {
@@ -2644,7 +2640,7 @@ impl Context {
        }
    }

-    pub fn cycle_message_roles(&mut self, ids: HashSet<MessageId>, cx: &mut ModelContext<Self>) {
+    pub fn cycle_message_roles(&mut self, ids: HashSet<MessageId>, cx: &mut Context<Self>) {
        for id in &ids {
            if let Some(metadata) = self.messages_metadata.get(id) {
                let role = metadata.role.cycle();
@@ -2655,7 +2651,7 @@ impl Context {
        self.message_roles_updated(ids, cx);
    }

-    fn message_roles_updated(&mut self, ids: HashSet<MessageId>, cx: &mut ModelContext<Self>) {
+    fn message_roles_updated(&mut self, ids: HashSet<MessageId>, cx: &mut Context<Self>) {
        let mut ranges = Vec::new();
        for message in self.messages(cx) {
            if ids.contains(&message.id) {
@@ -2678,7 +2674,7 @@ impl Context {
    pub fn update_metadata(
        &mut self,
        id: MessageId,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
        f: impl FnOnce(&mut MessageMetadata),
    ) {
        let version = self.version.clone();
@@ -2702,7 +2698,7 @@ impl Context {
        message_id: MessageId,
        role: Role,
        status: MessageStatus,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> Option<MessageAnchor> {
        if let Some(prev_message_ix) = self
            .message_anchors
@@ -2736,7 +2732,7 @@ impl Context {
        offset: usize,
        role: Role,
        status: MessageStatus,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> MessageAnchor {
        let start = self.buffer.update(cx, |buffer, cx| {
            buffer.edit([(offset..offset, "\n")], None, cx);
@@ -2766,7 +2762,7 @@ impl Context {
        anchor
    }

-    pub fn insert_content(&mut self, content: Content, cx: &mut ModelContext<Self>) {
+    pub fn insert_content(&mut self, content: Content, cx: &mut Context<Self>) {
        let buffer = self.buffer.read(cx);
        let insertion_ix = match self
            .contents
@@ -2782,7 +2778,7 @@ impl Context {
        cx.emit(ContextEvent::MessagesEdited);
    }

-    pub fn contents<'a>(&'a self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Content> {
+    pub fn contents<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = Content> {
        let buffer = self.buffer.read(cx);
        self.contents
            .iter()
@@ -2796,7 +2792,7 @@ impl Context {
    pub fn split_message(
        &mut self,
        range: Range<usize>,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) -> (Option<MessageAnchor>, Option<MessageAnchor>) {
        let start_message = self.message_for_offset(range.start, cx);
        let end_message = self.message_for_offset(range.end, cx);
@@ -2922,7 +2918,7 @@ impl Context {
        &mut self,
        new_anchor: MessageAnchor,
        new_metadata: MessageMetadata,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        cx.emit(ContextEvent::MessagesEdited);

@@ -2940,7 +2936,7 @@ impl Context {
        self.message_anchors.insert(insertion_ix, new_anchor);
    }

-    pub fn summarize(&mut self, replace_old: bool, cx: &mut ModelContext<Self>) {
+    pub fn summarize(&mut self, replace_old: bool, cx: &mut Context<Self>) {
        let Some(provider) = LanguageModelRegistry::read_global(cx).active_provider() else {
            return;
        };
@@ -3018,14 +3014,14 @@ impl Context {
        }
    }

-    fn message_for_offset(&self, offset: usize, cx: &AppContext) -> Option<Message> {
+    fn message_for_offset(&self, offset: usize, cx: &App) -> Option<Message> {
        self.messages_for_offsets([offset], cx).pop()
    }

    pub fn messages_for_offsets(
        &self,
        offsets: impl IntoIterator<Item = usize>,
-        cx: &AppContext,
+        cx: &App,
    ) -> Vec<Message> {
        let mut result = Vec::new();

@@ -3058,14 +3054,14 @@ impl Context {
    fn messages_from_anchors<'a>(
        &'a self,
        message_anchors: impl Iterator<Item = &'a MessageAnchor> + 'a,
-        cx: &'a AppContext,
+        cx: &'a App,
    ) -> impl 'a + Iterator<Item = Message> {
        let buffer = self.buffer.read(cx);

        Self::messages_from_iters(buffer, &self.messages_metadata, message_anchors.enumerate())
    }

-    pub fn messages<'a>(&'a self, cx: &'a AppContext) -> impl 'a + Iterator<Item = Message> {
+    pub fn messages<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = Message> {
        self.messages_from_anchors(self.message_anchors.iter(), cx)
    }

@@ -3113,7 +3109,7 @@ impl Context {
        &mut self,
        debounce: Option<Duration>,
        fs: Arc<dyn Fs>,
-        cx: &mut ModelContext<Context>,
+        cx: &mut Context<AssistantContext>,
    ) {
        if self.replica_id() != ReplicaId::default() {
            // Prevent saving a remote context for now.
@@ -3179,7 +3175,7 @@ impl Context {
        });
    }

-    pub fn custom_summary(&mut self, custom_summary: String, cx: &mut ModelContext<Self>) {
+    pub fn custom_summary(&mut self, custom_summary: String, cx: &mut Context<Self>) {
        let timestamp = self.next_timestamp();
        let summary = self.summary.get_or_insert(ContextSummary::default());
        summary.timestamp = timestamp;
@@ -3339,8 +3335,8 @@ impl SavedContext {

    fn into_ops(
        self,
-        buffer: &Model<Buffer>,
-        cx: &mut ModelContext<Context>,
+        buffer: &Entity<Buffer>,
+        cx: &mut Context<AssistantContext>,
    ) -> Vec<ContextOperation> {
        let mut operations = Vec::new();
        let mut version = clock::Global::new();
--- a/crates/assistant_context_editor/src/context/context_tests.rs
+++ b/crates/assistant_context_editor/src/context/context_tests.rs
@@ -1,5 +1,5 @@
 use crate::{
-    AssistantEdit, AssistantEditKind, CacheStatus, Context, ContextEvent, ContextId,
+    AssistantContext, AssistantEdit, AssistantEditKind, CacheStatus, ContextEvent, ContextId,
    ContextOperation, InvokedSlashCommandId, MessageCacheMetadata, MessageId, MessageStatus,
 };
 use anyhow::Result;
@@ -15,7 +15,7 @@ use futures::{
    channel::mpsc,
    stream::{self, StreamExt},
 };
-use gpui::{prelude::*, AppContext, Model, SharedString, Task, TestAppContext, WeakView};
+use gpui::{prelude::*, App, Entity, SharedString, Task, TestAppContext, WeakEntity};
 use language::{Buffer, BufferSnapshot, LanguageRegistry, LspAdapterDelegate};
 use language_model::{LanguageModelCacheConfiguration, LanguageModelRegistry, Role};
 use parking_lot::Mutex;
@@ -34,7 +34,7 @@ use std::{
    sync::{atomic::AtomicBool, Arc},
 };
 use text::{network::Network, OffsetRangeExt as _, ReplicaId, ToOffset};
-use ui::{IconName, WindowContext};
+use ui::{IconName, Window};
 use unindent::Unindent;
 use util::{
    test::{generate_marked_text, marked_text_ranges},
@@ -43,14 +43,14 @@ use util::{
 use workspace::Workspace;

 #[gpui::test]
-fn test_inserting_and_removing_messages(cx: &mut AppContext) {
+fn test_inserting_and_removing_messages(cx: &mut App) {
    let settings_store = SettingsStore::test(cx);
    LanguageModelRegistry::test(cx);
    cx.set_global(settings_store);
    let registry = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-    let context = cx.new_model(|cx| {
-        Context::local(
+    let context = cx.new(|cx| {
+        AssistantContext::local(
            registry,
            None,
            None,
@@ -183,15 +183,15 @@ fn test_inserting_and_removing_messages(cx: &mut AppContext) {
 }

 #[gpui::test]
-fn test_message_splitting(cx: &mut AppContext) {
+fn test_message_splitting(cx: &mut App) {
    let settings_store = SettingsStore::test(cx);
    cx.set_global(settings_store);
    LanguageModelRegistry::test(cx);
    let registry = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));

    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-    let context = cx.new_model(|cx| {
-        Context::local(
+    let context = cx.new(|cx| {
+        AssistantContext::local(
            registry.clone(),
            None,
            None,
@@ -287,14 +287,14 @@ fn test_message_splitting(cx: &mut AppContext) {
 }

 #[gpui::test]
-fn test_messages_for_offsets(cx: &mut AppContext) {
+fn test_messages_for_offsets(cx: &mut App) {
    let settings_store = SettingsStore::test(cx);
    LanguageModelRegistry::test(cx);
    cx.set_global(settings_store);
    let registry = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-    let context = cx.new_model(|cx| {
-        Context::local(
+    let context = cx.new(|cx| {
+        AssistantContext::local(
            registry,
            None,
            None,
@@ -367,9 +367,9 @@ fn test_messages_for_offsets(cx: &mut AppContext) {
    );

    fn message_ids_for_offsets(
-        context: &Model<Context>,
+        context: &Entity<AssistantContext>,
        offsets: &[usize],
-        cx: &AppContext,
+        cx: &App,
    ) -> Vec<MessageId> {
        context
            .read(cx)
@@ -407,8 +407,8 @@ async fn test_slash_commands(cx: &mut TestAppContext) {

    let registry = Arc::new(LanguageRegistry::test(cx.executor()));
    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-    let context = cx.new_model(|cx| {
-        Context::local(
+    let context = cx.new(|cx| {
+        AssistantContext::local(
            registry.clone(),
            None,
            None,
@@ -608,7 +608,7 @@ async fn test_slash_commands(cx: &mut TestAppContext) {

    #[track_caller]
    fn assert_text_and_context_ranges(
-        buffer: &Model<Buffer>,
+        buffer: &Entity<Buffer>,
        ranges: &RefCell<ContextRanges>,
        expected_marked_text: &str,
        cx: &mut TestAppContext,
@@ -697,8 +697,8 @@ async fn test_workflow_step_parsing(cx: &mut TestAppContext) {

    // Create a new context
    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-    let context = cx.new_model(|cx| {
-        Context::local(
+    let context = cx.new(|cx| {
+        AssistantContext::local(
            registry.clone(),
            Some(project),
            None,
@@ -962,8 +962,8 @@ async fn test_workflow_step_parsing(cx: &mut TestAppContext) {

    // Ensure steps are re-parsed when deserializing.
    let serialized_context = context.read_with(cx, |context, cx| context.serialize(cx));
-    let deserialized_context = cx.new_model(|cx| {
-        Context::deserialize(
+    let deserialized_context = cx.new(|cx| {
+        AssistantContext::deserialize(
            serialized_context,
            Default::default(),
            registry.clone(),
@@ -1006,7 +1006,11 @@ async fn test_workflow_step_parsing(cx: &mut TestAppContext) {
        cx,
    );

-    fn edit(context: &Model<Context>, new_text_marked_with_edits: &str, cx: &mut TestAppContext) {
+    fn edit(
+        context: &Entity<AssistantContext>,
+        new_text_marked_with_edits: &str,
+        cx: &mut TestAppContext,
+    ) {
        context.update(cx, |context, cx| {
            context.buffer.update(cx, |buffer, cx| {
                buffer.edit_via_marked_text(&new_text_marked_with_edits.unindent(), None, cx);
@@ -1017,7 +1021,7 @@ async fn test_workflow_step_parsing(cx: &mut TestAppContext) {

    #[track_caller]
    fn expect_patches(
-        context: &Model<Context>,
+        context: &Entity<AssistantContext>,
        expected_marked_text: &str,
        expected_suggestions: &[&[AssistantEdit]],
        cx: &mut TestAppContext,
@@ -1077,8 +1081,8 @@ async fn test_serialization(cx: &mut TestAppContext) {
    cx.update(LanguageModelRegistry::test);
    let registry = Arc::new(LanguageRegistry::test(cx.executor()));
    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-    let context = cx.new_model(|cx| {
-        Context::local(
+    let context = cx.new(|cx| {
+        AssistantContext::local(
            registry.clone(),
            None,
            None,
@@ -1121,8 +1125,8 @@ async fn test_serialization(cx: &mut TestAppContext) {
    );

    let serialized_context = context.read_with(cx, |context, cx| context.serialize(cx));
-    let deserialized_context = cx.new_model(|cx| {
-        Context::deserialize(
+    let deserialized_context = cx.new(|cx| {
+        AssistantContext::deserialize(
            serialized_context,
            Default::default(),
            registry.clone(),
@@ -1179,8 +1183,8 @@ async fn test_random_context_collaboration(cx: &mut TestAppContext, mut rng: Std
    let context_id = ContextId::new();
    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
    for i in 0..num_peers {
-        let context = cx.new_model(|cx| {
-            Context::new(
+        let context = cx.new(|cx| {
+            AssistantContext::new(
                context_id.clone(),
                i as ReplicaId,
                language::Capability::ReadWrite,
@@ -1434,14 +1438,14 @@ async fn test_random_context_collaboration(cx: &mut TestAppContext, mut rng: Std
 }

 #[gpui::test]
-fn test_mark_cache_anchors(cx: &mut AppContext) {
+fn test_mark_cache_anchors(cx: &mut App) {
    let settings_store = SettingsStore::test(cx);
    LanguageModelRegistry::test(cx);
    cx.set_global(settings_store);
    let registry = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
-    let context = cx.new_model(|cx| {
-        Context::local(
+    let context = cx.new(|cx| {
+        AssistantContext::local(
            registry,
            None,
            None,
@@ -1594,7 +1598,7 @@ fn test_mark_cache_anchors(cx: &mut AppContext) {
    );
 }

-fn messages(context: &Model<Context>, cx: &AppContext) -> Vec<(MessageId, Role, Range<usize>)> {
+fn messages(context: &Entity<AssistantContext>, cx: &App) -> Vec<(MessageId, Role, Range<usize>)> {
    context
        .read(cx)
        .messages(cx)
@@ -1603,8 +1607,8 @@ fn messages(context: &Model<Context>, cx: &AppContext) -> Vec<(MessageId, Role,
 }

 fn messages_cache(
-    context: &Model<Context>,
-    cx: &AppContext,
+    context: &Entity<AssistantContext>,
+    cx: &App,
 ) -> Vec<(MessageId, Option<MessageCacheMetadata>)> {
    context
        .read(cx)
@@ -1633,8 +1637,9 @@ impl SlashCommand for FakeSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Ok(vec![]))
    }
@@ -1648,9 +1653,10 @@ impl SlashCommand for FakeSlashCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        _cx: &mut WindowContext,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<SlashCommandResult> {
        Task::ready(Ok(SlashCommandOutput {
            text: format!("Executed fake command: {}", self.0),
--- a/crates/assistant_context_editor/src/context_editor.rs
+++ b/crates/assistant_context_editor/src/context_editor.rs
--- a/crates/assistant_context_editor/src/context_history.rs
+++ b/crates/assistant_context_editor/src/context_history.rs
@@ -1,8 +1,6 @@
 use std::sync::Arc;

-use gpui::{
-    AppContext, EventEmitter, FocusHandle, FocusableView, Model, Subscription, Task, View, WeakView,
-};
+use gpui::{App, Entity, EventEmitter, FocusHandle, Focusable, Subscription, Task, WeakEntity};
 use picker::{Picker, PickerDelegate};
 use project::Project;
 use ui::utils::{format_distance_from_now, DateTimeType};
@@ -25,21 +23,23 @@ enum SavedContextPickerEvent {
 }

 pub struct ContextHistory {
-    picker: View<Picker<SavedContextPickerDelegate>>,
+    picker: Entity<Picker<SavedContextPickerDelegate>>,
    _subscriptions: Vec<Subscription>,
-    workspace: WeakView<Workspace>,
+    workspace: WeakEntity<Workspace>,
 }

 impl ContextHistory {
    pub fn new(
-        project: Model<Project>,
-        context_store: Model<ContextStore>,
-        workspace: WeakView<Workspace>,
-        cx: &mut ViewContext<Self>,
+        project: Entity<Project>,
+        context_store: Entity<ContextStore>,
+        workspace: WeakEntity<Workspace>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) -> Self {
-        let picker = cx.new_view(|cx| {
+        let picker = cx.new(|cx| {
            Picker::uniform_list(
                SavedContextPickerDelegate::new(project, context_store.clone()),
+                window,
                cx,
            )
            .modal(false)
@@ -47,10 +47,11 @@ impl ContextHistory {
        });

        let subscriptions = vec![
-            cx.observe(&context_store, |this, _, cx| {
-                this.picker.update(cx, |picker, cx| picker.refresh(cx));
+            cx.observe_in(&context_store, window, |this, _, window, cx| {
+                this.picker
+                    .update(cx, |picker, cx| picker.refresh(window, cx));
            }),
-            cx.subscribe(&picker, Self::handle_picker_event),
+            cx.subscribe_in(&picker, window, Self::handle_picker_event),
        ];

        Self {
@@ -62,9 +63,10 @@ impl ContextHistory {

    fn handle_picker_event(
        &mut self,
-        _: View<Picker<SavedContextPickerDelegate>>,
+        _: &Entity<Picker<SavedContextPickerDelegate>>,
        event: &SavedContextPickerEvent,
-        cx: &mut ViewContext<Self>,
+        window: &mut Window,
+        cx: &mut Context<Self>,
    ) {
        let SavedContextPickerEvent::Confirmed(context) = event;

@@ -76,12 +78,12 @@ impl ContextHistory {
            .update(cx, |workspace, cx| match context {
                ContextMetadata::Remote(metadata) => {
                    assistant_panel_delegate
-                        .open_remote_context(workspace, metadata.id.clone(), cx)
+                        .open_remote_context(workspace, metadata.id.clone(), window, cx)
                        .detach_and_log_err(cx);
                }
                ContextMetadata::Saved(metadata) => {
                    assistant_panel_delegate
-                        .open_saved_context(workspace, metadata.path.clone(), cx)
+                        .open_saved_context(workspace, metadata.path.clone(), window, cx)
                        .detach_and_log_err(cx);
                }
            })
@@ -90,13 +92,13 @@ impl ContextHistory {
 }

 impl Render for ContextHistory {
-    fn render(&mut self, _: &mut ViewContext<Self>) -> impl IntoElement {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        div().size_full().child(self.picker.clone())
    }
 }

-impl FocusableView for ContextHistory {
-    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+impl Focusable for ContextHistory {
+    fn focus_handle(&self, cx: &App) -> FocusHandle {
        self.picker.focus_handle(cx)
    }
 }
@@ -106,14 +108,14 @@ impl EventEmitter<()> for ContextHistory {}
 impl Item for ContextHistory {
    type Event = ();

-    fn tab_content_text(&self, _cx: &WindowContext) -> Option<SharedString> {
+    fn tab_content_text(&self, _window: &Window, _cx: &App) -> Option<SharedString> {
        Some("History".into())
    }
 }

 struct SavedContextPickerDelegate {
-    store: Model<ContextStore>,
-    project: Model<Project>,
+    store: Entity<ContextStore>,
+    project: Entity<Project>,
    matches: Vec<ContextMetadata>,
    selected_index: usize,
 }
@@ -121,7 +123,7 @@ struct SavedContextPickerDelegate {
 impl EventEmitter<SavedContextPickerEvent> for Picker<SavedContextPickerDelegate> {}

 impl SavedContextPickerDelegate {
-    fn new(project: Model<Project>, store: Model<ContextStore>) -> Self {
+    fn new(project: Entity<Project>, store: Entity<ContextStore>) -> Self {
        Self {
            project,
            store,
@@ -142,15 +144,25 @@ impl PickerDelegate for SavedContextPickerDelegate {
        self.selected_index
    }

-    fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
+    fn set_selected_index(
+        &mut self,
+        ix: usize,
+        _window: &mut Window,
+        _cx: &mut Context<Picker<Self>>,
+    ) {
        self.selected_index = ix;
    }

-    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+    fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
        "Search...".into()
    }

-    fn update_matches(&mut self, query: String, cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
+    fn update_matches(
+        &mut self,
+        query: String,
+        _window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
+    ) -> Task<()> {
        let search = self.store.read(cx).search(query, cx);
        cx.spawn(|this, mut cx| async move {
            let matches = search.await;
@@ -169,19 +181,20 @@ impl PickerDelegate for SavedContextPickerDelegate {
        })
    }

-    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
        if let Some(metadata) = self.matches.get(self.selected_index) {
            cx.emit(SavedContextPickerEvent::Confirmed(metadata.clone()));
        }
    }

-    fn dismissed(&mut self, _cx: &mut ViewContext<Picker<Self>>) {}
+    fn dismissed(&mut self, _window: &mut Window, _cx: &mut Context<Picker<Self>>) {}

    fn render_match(
        &self,
        ix: usize,
        selected: bool,
-        cx: &mut ViewContext<Picker<Self>>,
+        _window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
    ) -> Option<Self::ListItem> {
        let context = self.matches.get(ix)?;
        let item = match context {
--- a/crates/assistant_context_editor/src/context_store.rs
+++ b/crates/assistant_context_editor/src/context_store.rs
@@ -1,5 +1,5 @@
 use crate::{
-    Context, ContextEvent, ContextId, ContextOperation, ContextVersion, SavedContext,
+    AssistantContext, ContextEvent, ContextId, ContextOperation, ContextVersion, SavedContext,
    SavedContextMetadata,
 };
 use anyhow::{anyhow, Context as _, Result};
@@ -13,9 +13,7 @@ use context_server::{ContextServerFactoryRegistry, ContextServerTool};
 use fs::Fs;
 use futures::StreamExt;
 use fuzzy::StringMatchCandidate;
-use gpui::{
-    AppContext, AsyncAppContext, Context as _, EventEmitter, Model, ModelContext, Task, WeakModel,
-};
+use gpui::{App, AppContext as _, AsyncApp, Context, Entity, EventEmitter, Task, WeakEntity};
 use language::LanguageRegistry;
 use paths::contexts_dir;
 use project::Project;
@@ -50,7 +48,7 @@ pub struct RemoteContextMetadata {
 pub struct ContextStore {
    contexts: Vec<ContextHandle>,
    contexts_metadata: Vec<SavedContextMetadata>,
-    context_server_manager: Model<ContextServerManager>,
+    context_server_manager: Entity<ContextServerManager>,
    context_server_slash_command_ids: HashMap<Arc<str>, Vec<SlashCommandId>>,
    context_server_tool_ids: HashMap<Arc<str>, Vec<ToolId>>,
    host_contexts: Vec<RemoteContextMetadata>,
@@ -61,7 +59,7 @@ pub struct ContextStore {
    telemetry: Arc<Telemetry>,
    _watch_updates: Task<Option<()>>,
    client: Arc<Client>,
-    project: Model<Project>,
+    project: Entity<Project>,
    project_is_shared: bool,
    client_subscription: Option<client::Subscription>,
    _project_subscriptions: Vec<gpui::Subscription>,
@@ -75,19 +73,19 @@ pub enum ContextStoreEvent {
 impl EventEmitter<ContextStoreEvent> for ContextStore {}

 enum ContextHandle {
-    Weak(WeakModel<Context>),
-    Strong(Model<Context>),
+    Weak(WeakEntity<AssistantContext>),
+    Strong(Entity<AssistantContext>),
 }

 impl ContextHandle {
-    fn upgrade(&self) -> Option<Model<Context>> {
+    fn upgrade(&self) -> Option<Entity<AssistantContext>> {
        match self {
            ContextHandle::Weak(weak) => weak.upgrade(),
            ContextHandle::Strong(strong) => Some(strong.clone()),
        }
    }

-    fn downgrade(&self) -> WeakModel<Context> {
+    fn downgrade(&self) -> WeakEntity<AssistantContext> {
        match self {
            ContextHandle::Weak(weak) => weak.clone(),
            ContextHandle::Strong(strong) => strong.downgrade(),
@@ -97,12 +95,12 @@ impl ContextHandle {

 impl ContextStore {
    pub fn new(
-        project: Model<Project>,
+        project: Entity<Project>,
        prompt_builder: Arc<PromptBuilder>,
        slash_commands: Arc<SlashCommandWorkingSet>,
        tools: Arc<ToolWorkingSet>,
-        cx: &mut AppContext,
-    ) -> Task<Result<Model<Self>>> {
+        cx: &mut App,
+    ) -> Task<Result<Entity<Self>>> {
        let fs = project.read(cx).fs().clone();
        let languages = project.read(cx).languages().clone();
        let telemetry = project.read(cx).client().telemetry().clone();
@@ -110,10 +108,10 @@ impl ContextStore {
            const CONTEXT_WATCH_DURATION: Duration = Duration::from_millis(100);
            let (mut events, _) = fs.watch(contexts_dir(), CONTEXT_WATCH_DURATION).await;

-            let this = cx.new_model(|cx: &mut ModelContext<Self>| {
+            let this = cx.new(|cx: &mut Context<Self>| {
                let context_server_factory_registry =
                    ContextServerFactoryRegistry::default_global(cx);
-                let context_server_manager = cx.new_model(|cx| {
+                let context_server_manager = cx.new(|cx| {
                    ContextServerManager::new(context_server_factory_registry, project.clone(), cx)
                });
                let mut this = Self {
@@ -163,9 +161,9 @@ impl ContextStore {
    }

    async fn handle_advertise_contexts(
-        this: Model<Self>,
+        this: Entity<Self>,
        envelope: TypedEnvelope<proto::AdvertiseContexts>,
-        mut cx: AsyncAppContext,
+        mut cx: AsyncApp,
    ) -> Result<()> {
        this.update(&mut cx, |this, cx| {
            this.host_contexts = envelope
@@ -182,9 +180,9 @@ impl ContextStore {
    }

    async fn handle_open_context(
-        this: Model<Self>,
+        this: Entity<Self>,
        envelope: TypedEnvelope<proto::OpenContext>,
-        mut cx: AsyncAppContext,
+        mut cx: AsyncApp,
    ) -> Result<proto::OpenContextResponse> {
        let context_id = ContextId::from_proto(envelope.payload.context_id);
        let operations = this.update(&mut cx, |this, cx| {
@@ -212,9 +210,9 @@ impl ContextStore {
    }

    async fn handle_create_context(
-        this: Model<Self>,
+        this: Entity<Self>,
        _: TypedEnvelope<proto::CreateContext>,
-        mut cx: AsyncAppContext,
+        mut cx: AsyncApp,
    ) -> Result<proto::CreateContextResponse> {
        let (context_id, operations) = this.update(&mut cx, |this, cx| {
            if this.project.read(cx).is_via_collab() {
@@ -240,9 +238,9 @@ impl ContextStore {
    }

    async fn handle_update_context(
-        this: Model<Self>,
+        this: Entity<Self>,
        envelope: TypedEnvelope<proto::UpdateContext>,
-        mut cx: AsyncAppContext,
+        mut cx: AsyncApp,
    ) -> Result<()> {
        this.update(&mut cx, |this, cx| {
            let context_id = ContextId::from_proto(envelope.payload.context_id);
@@ -256,9 +254,9 @@ impl ContextStore {
    }

    async fn handle_synchronize_contexts(
-        this: Model<Self>,
+        this: Entity<Self>,
        envelope: TypedEnvelope<proto::SynchronizeContexts>,
-        mut cx: AsyncAppContext,
+        mut cx: AsyncApp,
    ) -> Result<proto::SynchronizeContextsResponse> {
        this.update(&mut cx, |this, cx| {
            if this.project.read(cx).is_via_collab() {
@@ -299,7 +297,7 @@ impl ContextStore {
        })?
    }

-    fn handle_project_changed(&mut self, _: Model<Project>, cx: &mut ModelContext<Self>) {
+    fn handle_project_changed(&mut self, _: Entity<Project>, cx: &mut Context<Self>) {
        let is_shared = self.project.read(cx).is_shared();
        let was_shared = mem::replace(&mut self.project_is_shared, is_shared);
        if is_shared == was_shared {
@@ -320,7 +318,7 @@ impl ContextStore {
                .client
                .subscribe_to_entity(remote_id)
                .log_err()
-                .map(|subscription| subscription.set_model(&cx.handle(), &mut cx.to_async()));
+                .map(|subscription| subscription.set_model(&cx.entity(), &mut cx.to_async()));
            self.advertise_contexts(cx);
        } else {
            self.client_subscription = None;
@@ -329,9 +327,9 @@ impl ContextStore {

    fn handle_project_event(
        &mut self,
-        _: Model<Project>,
+        _: Entity<Project>,
        event: &project::Event,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        match event {
            project::Event::Reshared => {
@@ -361,9 +359,9 @@ impl ContextStore {
        }
    }

-    pub fn create(&mut self, cx: &mut ModelContext<Self>) -> Model<Context> {
-        let context = cx.new_model(|cx| {
-            Context::local(
+    pub fn create(&mut self, cx: &mut Context<Self>) -> Entity<AssistantContext> {
+        let context = cx.new(|cx| {
+            AssistantContext::local(
                self.languages.clone(),
                Some(self.project.clone()),
                Some(self.telemetry.clone()),
@@ -379,8 +377,8 @@ impl ContextStore {

    pub fn create_remote_context(
        &mut self,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<Model<Context>>> {
+        cx: &mut Context<Self>,
+    ) -> Task<Result<Entity<AssistantContext>>> {
        let project = self.project.read(cx);
        let Some(project_id) = project.remote_id() else {
            return Task::ready(Err(anyhow!("project was not remote")));
@@ -399,8 +397,8 @@ impl ContextStore {
            let response = request.await?;
            let context_id = ContextId::from_proto(response.context_id);
            let context_proto = response.context.context("invalid context")?;
-            let context = cx.new_model(|cx| {
-                Context::new(
+            let context = cx.new(|cx| {
+                AssistantContext::new(
                    context_id.clone(),
                    replica_id,
                    capability,
@@ -439,8 +437,8 @@ impl ContextStore {
    pub fn open_local_context(
        &mut self,
        path: PathBuf,
-        cx: &ModelContext<Self>,
-    ) -> Task<Result<Model<Context>>> {
+        cx: &Context<Self>,
+    ) -> Task<Result<Entity<AssistantContext>>> {
        if let Some(existing_context) = self.loaded_context_for_path(&path, cx) {
            return Task::ready(Ok(existing_context));
        }
@@ -462,8 +460,8 @@ impl ContextStore {

        cx.spawn(|this, mut cx| async move {
            let saved_context = load.await?;
-            let context = cx.new_model(|cx| {
-                Context::deserialize(
+            let context = cx.new(|cx| {
+                AssistantContext::deserialize(
                    saved_context,
                    path.clone(),
                    languages,
@@ -486,7 +484,7 @@ impl ContextStore {
        })
    }

-    fn loaded_context_for_path(&self, path: &Path, cx: &AppContext) -> Option<Model<Context>> {
+    fn loaded_context_for_path(&self, path: &Path, cx: &App) -> Option<Entity<AssistantContext>> {
        self.contexts.iter().find_map(|context| {
            let context = context.upgrade()?;
            if context.read(cx).path() == Some(path) {
@@ -497,7 +495,11 @@ impl ContextStore {
        })
    }

-    pub fn loaded_context_for_id(&self, id: &ContextId, cx: &AppContext) -> Option<Model<Context>> {
+    pub fn loaded_context_for_id(
+        &self,
+        id: &ContextId,
+        cx: &App,
+    ) -> Option<Entity<AssistantContext>> {
        self.contexts.iter().find_map(|context| {
            let context = context.upgrade()?;
            if context.read(cx).id() == id {
@@ -511,8 +513,8 @@ impl ContextStore {
    pub fn open_remote_context(
        &mut self,
        context_id: ContextId,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<Model<Context>>> {
+        cx: &mut Context<Self>,
+    ) -> Task<Result<Entity<AssistantContext>>> {
        let project = self.project.read(cx);
        let Some(project_id) = project.remote_id() else {
            return Task::ready(Err(anyhow!("project was not remote")));
@@ -537,8 +539,8 @@ impl ContextStore {
        cx.spawn(|this, mut cx| async move {
            let response = request.await?;
            let context_proto = response.context.context("invalid context")?;
-            let context = cx.new_model(|cx| {
-                Context::new(
+            let context = cx.new(|cx| {
+                AssistantContext::new(
                    context_id.clone(),
                    replica_id,
                    capability,
@@ -574,7 +576,7 @@ impl ContextStore {
        })
    }

-    fn register_context(&mut self, context: &Model<Context>, cx: &mut ModelContext<Self>) {
+    fn register_context(&mut self, context: &Entity<AssistantContext>, cx: &mut Context<Self>) {
        let handle = if self.project_is_shared {
            ContextHandle::Strong(context.clone())
        } else {
@@ -587,9 +589,9 @@ impl ContextStore {

    fn handle_context_event(
        &mut self,
-        context: Model<Context>,
+        context: Entity<AssistantContext>,
        event: &ContextEvent,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let Some(project_id) = self.project.read(cx).remote_id() else {
            return;
@@ -614,7 +616,7 @@ impl ContextStore {
        }
    }

-    fn advertise_contexts(&self, cx: &AppContext) {
+    fn advertise_contexts(&self, cx: &App) {
        let Some(project_id) = self.project.read(cx).remote_id() else {
            return;
        };
@@ -648,7 +650,7 @@ impl ContextStore {
            .ok();
    }

-    fn synchronize_contexts(&mut self, cx: &mut ModelContext<Self>) {
+    fn synchronize_contexts(&mut self, cx: &mut Context<Self>) {
        let Some(project_id) = self.project.read(cx).remote_id() else {
            return;
        };
@@ -703,7 +705,7 @@ impl ContextStore {
        .detach_and_log_err(cx);
    }

-    pub fn search(&self, query: String, cx: &AppContext) -> Task<Vec<SavedContextMetadata>> {
+    pub fn search(&self, query: String, cx: &App) -> Task<Vec<SavedContextMetadata>> {
        let metadata = self.contexts_metadata.clone();
        let executor = cx.background_executor().clone();
        cx.background_executor().spawn(async move {
@@ -737,7 +739,7 @@ impl ContextStore {
        &self.host_contexts
    }

-    fn reload(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
+    fn reload(&mut self, cx: &mut Context<Self>) -> Task<Result<()>> {
        let fs = self.fs.clone();
        cx.spawn(|this, mut cx| async move {
            fs.create_dir(contexts_dir()).await?;
@@ -786,8 +788,8 @@ impl ContextStore {
        })
    }

-    pub fn restart_context_servers(&mut self, cx: &mut ModelContext<Self>) {
-        cx.update_model(
+    pub fn restart_context_servers(&mut self, cx: &mut Context<Self>) {
+        cx.update_entity(
            &self.context_server_manager,
            |context_server_manager, cx| {
                for server in context_server_manager.servers() {
@@ -799,7 +801,7 @@ impl ContextStore {
        );
    }

-    fn register_context_server_handlers(&self, cx: &mut ModelContext<Self>) {
+    fn register_context_server_handlers(&self, cx: &mut Context<Self>) {
        cx.subscribe(
            &self.context_server_manager.clone(),
            Self::handle_context_server_event,
@@ -809,9 +811,9 @@ impl ContextStore {

    fn handle_context_server_event(
        &mut self,
-        context_server_manager: Model<ContextServerManager>,
+        context_server_manager: Entity<ContextServerManager>,
        event: &context_server::manager::Event,
-        cx: &mut ModelContext<Self>,
+        cx: &mut Context<Self>,
    ) {
        let slash_command_working_set = self.slash_commands.clone();
        let tool_working_set = self.tools.clone();
--- a/crates/assistant_context_editor/src/patch.rs
+++ b/crates/assistant_context_editor/src/patch.rs
@@ -2,7 +2,7 @@ use anyhow::{anyhow, Context as _, Result};
 use collections::HashMap;
 use editor::ProposedChangesEditor;
 use futures::{future, TryFutureExt as _};
-use gpui::{AppContext, AsyncAppContext, Model, SharedString};
+use gpui::{App, AsyncApp, Entity, SharedString};
 use language::{AutoindentMode, Buffer, BufferSnapshot};
 use project::{Project, ProjectPath};
 use std::{cmp, ops::Range, path::Path, sync::Arc};
@@ -56,7 +56,7 @@ pub enum AssistantEditKind {

 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct ResolvedPatch {
-    pub edit_groups: HashMap<Model<Buffer>, Vec<ResolvedEditGroup>>,
+    pub edit_groups: HashMap<Entity<Buffer>, Vec<ResolvedEditGroup>>,
    pub errors: Vec<AssistantPatchResolutionError>,
 }

@@ -121,7 +121,7 @@ impl SearchMatrix {
 }

 impl ResolvedPatch {
-    pub fn apply(&self, editor: &ProposedChangesEditor, cx: &mut AppContext) {
+    pub fn apply(&self, editor: &ProposedChangesEditor, cx: &mut App) {
        for (buffer, groups) in &self.edit_groups {
            let branch = editor.branch_buffer_for_base(buffer).unwrap();
            Self::apply_edit_groups(groups, &branch, cx);
@@ -129,11 +129,7 @@ impl ResolvedPatch {
        editor.recalculate_all_buffer_diffs();
    }

-    fn apply_edit_groups(
-        groups: &Vec<ResolvedEditGroup>,
-        buffer: &Model<Buffer>,
-        cx: &mut AppContext,
-    ) {
+    fn apply_edit_groups(groups: &Vec<ResolvedEditGroup>, buffer: &Entity<Buffer>, cx: &mut App) {
        let mut edits = Vec::new();
        for group in groups {
            for suggestion in &group.edits {
@@ -232,9 +228,9 @@ impl AssistantEdit {

    pub async fn resolve(
        &self,
-        project: Model<Project>,
-        mut cx: AsyncAppContext,
-    ) -> Result<(Model<Buffer>, ResolvedEdit)> {
+        project: Entity<Project>,
+        mut cx: AsyncApp,
+    ) -> Result<(Entity<Buffer>, ResolvedEdit)> {
        let path = self.path.clone();
        let kind = self.kind.clone();
        let buffer = project
@@ -425,11 +421,7 @@ impl AssistantEditKind {
 }

 impl AssistantPatch {
-    pub async fn resolve(
-        &self,
-        project: Model<Project>,
-        cx: &mut AsyncAppContext,
-    ) -> ResolvedPatch {
+    pub async fn resolve(&self, project: Entity<Project>, cx: &mut AsyncApp) -> ResolvedPatch {
        let mut resolve_tasks = Vec::new();
        for (ix, edit) in self.edits.iter().enumerate() {
            if let Ok(edit) = edit.as_ref() {
@@ -555,7 +547,7 @@ impl Eq for AssistantPatch {}
 #[cfg(test)]
 mod tests {
    use super::*;
-    use gpui::{AppContext, Context};
+    use gpui::{App, AppContext as _};
    use language::{
        language_settings::AllLanguageSettings, Language, LanguageConfig, LanguageMatcher,
    };
@@ -565,7 +557,7 @@ mod tests {
    use util::test::{generate_marked_text, marked_text_ranges};

    #[gpui::test]
-    fn test_resolve_location(cx: &mut AppContext) {
+    fn test_resolve_location(cx: &mut App) {
        assert_location_resolution(
            concat!(
                "    Lorem\n",
@@ -636,7 +628,7 @@ mod tests {
    }

    #[gpui::test]
-    fn test_resolve_edits(cx: &mut AppContext) {
+    fn test_resolve_edits(cx: &mut App) {
        init_test(cx);

        assert_edits(
@@ -902,7 +894,7 @@ mod tests {
        );
    }

-    fn init_test(cx: &mut AppContext) {
+    fn init_test(cx: &mut App) {
        let settings_store = SettingsStore::test(cx);
        cx.set_global(settings_store);
        language::init(cx);
@@ -912,13 +904,9 @@ mod tests {
    }

    #[track_caller]
-    fn assert_location_resolution(
-        text_with_expected_range: &str,
-        query: &str,
-        cx: &mut AppContext,
-    ) {
+    fn assert_location_resolution(text_with_expected_range: &str, query: &str, cx: &mut App) {
        let (text, _) = marked_text_ranges(text_with_expected_range, false);
-        let buffer = cx.new_model(|cx| Buffer::local(text.clone(), cx));
+        let buffer = cx.new(|cx| Buffer::local(text.clone(), cx));
        let snapshot = buffer.read(cx).snapshot();
        let range = AssistantEditKind::resolve_location(&snapshot, query).to_offset(&snapshot);
        let text_with_actual_range = generate_marked_text(&text, &[range], false);
@@ -930,10 +918,10 @@ mod tests {
        old_text: String,
        edits: Vec<AssistantEditKind>,
        new_text: String,
-        cx: &mut AppContext,
+        cx: &mut App,
    ) {
        let buffer =
-            cx.new_model(|cx| Buffer::local(old_text, cx).with_language(Arc::new(rust_lang()), cx));
+            cx.new(|cx| Buffer::local(old_text, cx).with_language(Arc::new(rust_lang()), cx));
        let snapshot = buffer.read(cx).snapshot();
        let resolved_edits = edits
            .into_iter()
--- a/crates/assistant_context_editor/src/slash_command.rs
+++ b/crates/assistant_context_editor/src/slash_command.rs
@@ -4,7 +4,7 @@ pub use assistant_slash_command::SlashCommand;
 use assistant_slash_command::{AfterCompletion, SlashCommandLine, SlashCommandWorkingSet};
 use editor::{CompletionProvider, Editor};
 use fuzzy::{match_strings, StringMatchCandidate};
-use gpui::{Model, Task, ViewContext, WeakView, WindowContext};
+use gpui::{App, Context, Entity, Task, WeakEntity, Window};
 use language::{Anchor, Buffer, Documentation, LanguageServerId, ToPoint};
 use parking_lot::Mutex;
 use project::CompletionIntent;
@@ -23,15 +23,15 @@ use workspace::Workspace;
 pub struct SlashCommandCompletionProvider {
    cancel_flag: Mutex<Arc<AtomicBool>>,
    slash_commands: Arc<SlashCommandWorkingSet>,
-    editor: Option<WeakView<ContextEditor>>,
-    workspace: Option<WeakView<Workspace>>,
+    editor: Option<WeakEntity<ContextEditor>>,
+    workspace: Option<WeakEntity<Workspace>>,
 }

 impl SlashCommandCompletionProvider {
    pub fn new(
        slash_commands: Arc<SlashCommandWorkingSet>,
-        editor: Option<WeakView<ContextEditor>>,
-        workspace: Option<WeakView<Workspace>>,
+        editor: Option<WeakEntity<ContextEditor>>,
+        workspace: Option<WeakEntity<Workspace>>,
    ) -> Self {
        Self {
            cancel_flag: Mutex::new(Arc::new(AtomicBool::new(false))),
@@ -46,7 +46,8 @@ impl SlashCommandCompletionProvider {
        command_name: &str,
        command_range: Range<Anchor>,
        name_range: Range<Anchor>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<project::Completion>>> {
        let slash_commands = self.slash_commands.clone();
        let candidates = slash_commands
@@ -58,7 +59,7 @@ impl SlashCommandCompletionProvider {
        let command_name = command_name.to_string();
        let editor = self.editor.clone();
        let workspace = self.workspace.clone();
-        cx.spawn(|mut cx| async move {
+        window.spawn(cx, |mut cx| async move {
            let matches = match_strings(
                &candidates,
                &command_name,
@@ -69,7 +70,7 @@ impl SlashCommandCompletionProvider {
            )
            .await;

-            cx.update(|cx| {
+            cx.update(|_, cx| {
                matches
                    .into_iter()
                    .filter_map(|mat| {
@@ -91,28 +92,31 @@ impl SlashCommandCompletionProvider {
                                    let editor = editor.clone();
                                    let workspace = workspace.clone();
                                    Arc::new(
-                                        move |intent: CompletionIntent, cx: &mut WindowContext| {
-                                            if !requires_argument
-                                                && (!accepts_arguments || intent.is_complete())
-                                            {
-                                                editor
-                                                    .update(cx, |editor, cx| {
-                                                        editor.run_command(
-                                                            command_range.clone(),
-                                                            &command_name,
-                                                            &[],
-                                                            true,
-                                                            workspace.clone(),
-                                                            cx,
-                                                        );
-                                                    })
-                                                    .ok();
-                                                false
-                                            } else {
-                                                requires_argument || accepts_arguments
-                                            }
-                                        },
-                                    ) as Arc<_>
+                                    move |intent: CompletionIntent,
+                                          window: &mut Window,
+                                          cx: &mut App| {
+                                        if !requires_argument
+                                            && (!accepts_arguments || intent.is_complete())
+                                        {
+                                            editor
+                                                .update(cx, |editor, cx| {
+                                                    editor.run_command(
+                                                        command_range.clone(),
+                                                        &command_name,
+                                                        &[],
+                                                        true,
+                                                        workspace.clone(),
+                                                        window,
+                                                        cx,
+                                                    );
+                                                })
+                                                .ok();
+                                            false
+                                        } else {
+                                            requires_argument || accepts_arguments
+                                        }
+                                    },
+                                ) as Arc<_>
                                });
                        Some(project::Completion {
                            old_range: name_range.clone(),
@@ -130,6 +134,7 @@ impl SlashCommandCompletionProvider {
        })
    }

+    #[allow(clippy::too_many_arguments)]
    fn complete_command_argument(
        &self,
        command_name: &str,
@@ -137,7 +142,8 @@ impl SlashCommandCompletionProvider {
        command_range: Range<Anchor>,
        argument_range: Range<Anchor>,
        last_argument_range: Range<Anchor>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<project::Completion>>> {
        let new_cancel_flag = Arc::new(AtomicBool::new(false));
        let mut flag = self.cancel_flag.lock();
@@ -148,6 +154,7 @@ impl SlashCommandCompletionProvider {
                arguments,
                new_cancel_flag.clone(),
                self.workspace.clone(),
+                window,
                cx,
            );
            let command_name: Arc<str> = command_name.into();
@@ -175,7 +182,9 @@ impl SlashCommandCompletionProvider {

                                        let command_range = command_range.clone();
                                        let command_name = command_name.clone();
-                                        move |intent: CompletionIntent, cx: &mut WindowContext| {
+                                        move |intent: CompletionIntent,
+                                              window: &mut Window,
+                                              cx: &mut App| {
                                            if new_argument.after_completion.run()
                                                || intent.is_complete()
                                            {
@@ -187,6 +196,7 @@ impl SlashCommandCompletionProvider {
                                                            &completed_arguments,
                                                            true,
                                                            workspace.clone(),
+                                                            window,
                                                            cx,
                                                        );
                                                    })
@@ -230,10 +240,11 @@ impl SlashCommandCompletionProvider {
 impl CompletionProvider for SlashCommandCompletionProvider {
    fn completions(
        &self,
-        buffer: &Model<Buffer>,
+        buffer: &Entity<Buffer>,
        buffer_position: Anchor,
        _: editor::CompletionContext,
-        cx: &mut ViewContext<Editor>,
+        window: &mut Window,
+        cx: &mut Context<Editor>,
    ) -> Task<Result<Vec<project::Completion>>> {
        let Some((name, arguments, command_range, last_argument_range)) =
            buffer.update(cx, |buffer, _cx| {
@@ -288,30 +299,31 @@ impl CompletionProvider for SlashCommandCompletionProvider {
                command_range,
                argument_range,
                last_argument_range,
+                window,
                cx,
            )
        } else {
-            self.complete_command_name(&name, command_range, last_argument_range, cx)
+            self.complete_command_name(&name, command_range, last_argument_range, window, cx)
        }
    }

    fn resolve_completions(
        &self,
-        _: Model<Buffer>,
+        _: Entity<Buffer>,
        _: Vec<usize>,
        _: Rc<RefCell<Box<[project::Completion]>>>,
-        _: &mut ViewContext<Editor>,
+        _: &mut Context<Editor>,
    ) -> Task<Result<bool>> {
        Task::ready(Ok(true))
    }

    fn is_completion_trigger(
        &self,
-        buffer: &Model<Buffer>,
+        buffer: &Entity<Buffer>,
        position: language::Anchor,
        _text: &str,
        _trigger_in_words: bool,
-        cx: &mut ViewContext<Editor>,
+        cx: &mut Context<Editor>,
    ) -> bool {
        let buffer = buffer.read(cx);
        let position = position.to_point(buffer);
--- a/crates/assistant_context_editor/src/slash_command_picker.rs
+++ b/crates/assistant_context_editor/src/slash_command_picker.rs
@@ -1,7 +1,7 @@
 use std::sync::Arc;

 use assistant_slash_command::SlashCommandWorkingSet;
-use gpui::{AnyElement, DismissEvent, SharedString, Task, WeakView};
+use gpui::{AnyElement, DismissEvent, SharedString, Task, WeakEntity};
 use picker::{Picker, PickerDelegate, PickerEditorPosition};
 use ui::{prelude::*, ListItem, ListItemSpacing, PopoverMenu, PopoverTrigger, Tooltip};

@@ -10,7 +10,7 @@ use crate::context_editor::ContextEditor;
 #[derive(IntoElement)]
 pub(super) struct SlashCommandSelector<T: PopoverTrigger> {
    working_set: Arc<SlashCommandWorkingSet>,
-    active_context_editor: WeakView<ContextEditor>,
+    active_context_editor: WeakEntity<ContextEditor>,
    trigger: T,
 }

@@ -27,8 +27,8 @@ enum SlashCommandEntry {
    Info(SlashCommandInfo),
    Advert {
        name: SharedString,
-        renderer: fn(&mut WindowContext) -> AnyElement,
-        on_confirm: fn(&mut WindowContext),
+        renderer: fn(&mut Window, &mut App) -> AnyElement,
+        on_confirm: fn(&mut Window, &mut App),
    },
 }

@@ -44,14 +44,14 @@ impl AsRef<str> for SlashCommandEntry {
 pub(crate) struct SlashCommandDelegate {
    all_commands: Vec<SlashCommandEntry>,
    filtered_commands: Vec<SlashCommandEntry>,
-    active_context_editor: WeakView<ContextEditor>,
+    active_context_editor: WeakEntity<ContextEditor>,
    selected_index: usize,
 }

 impl<T: PopoverTrigger> SlashCommandSelector<T> {
    pub(crate) fn new(
        working_set: Arc<SlashCommandWorkingSet>,
-        active_context_editor: WeakView<ContextEditor>,
+        active_context_editor: WeakEntity<ContextEditor>,
        trigger: T,
    ) -> Self {
        SlashCommandSelector {
@@ -73,18 +73,23 @@ impl PickerDelegate for SlashCommandDelegate {
        self.selected_index
    }

-    fn set_selected_index(&mut self, ix: usize, cx: &mut ViewContext<Picker<Self>>) {
+    fn set_selected_index(&mut self, ix: usize, _: &mut Window, cx: &mut Context<Picker<Self>>) {
        self.selected_index = ix.min(self.filtered_commands.len().saturating_sub(1));
        cx.notify();
    }

-    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+    fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
        "Select a command...".into()
    }

-    fn update_matches(&mut self, query: String, cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
+    fn update_matches(
+        &mut self,
+        query: String,
+        window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
+    ) -> Task<()> {
        let all_commands = self.all_commands.clone();
-        cx.spawn(|this, mut cx| async move {
+        cx.spawn_in(window, |this, mut cx| async move {
            let filtered_commands = cx
                .background_executor()
                .spawn(async move {
@@ -104,9 +109,9 @@ impl PickerDelegate for SlashCommandDelegate {
                })
                .await;

-            this.update(&mut cx, |this, cx| {
+            this.update_in(&mut cx, |this, window, cx| {
                this.delegate.filtered_commands = filtered_commands;
-                this.delegate.set_selected_index(0, cx);
+                this.delegate.set_selected_index(0, window, cx);
                cx.notify();
            })
            .ok();
@@ -139,25 +144,25 @@ impl PickerDelegate for SlashCommandDelegate {
        ret
    }

-    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
        if let Some(command) = self.filtered_commands.get(self.selected_index) {
            match command {
                SlashCommandEntry::Info(info) => {
                    self.active_context_editor
                        .update(cx, |context_editor, cx| {
-                            context_editor.insert_command(&info.name, cx)
+                            context_editor.insert_command(&info.name, window, cx)
                        })
                        .ok();
                }
                SlashCommandEntry::Advert { on_confirm, .. } => {
-                    on_confirm(cx);
+                    on_confirm(window, cx);
                }
            }
            cx.emit(DismissEvent);
        }
    }

-    fn dismissed(&mut self, _cx: &mut ViewContext<Picker<Self>>) {}
+    fn dismissed(&mut self, _window: &mut Window, _cx: &mut Context<Picker<Self>>) {}

    fn editor_position(&self) -> PickerEditorPosition {
        PickerEditorPosition::End
@@ -167,7 +172,8 @@ impl PickerDelegate for SlashCommandDelegate {
        &self,
        ix: usize,
        selected: bool,
-        cx: &mut ViewContext<Picker<Self>>,
+        window: &mut Window,
+        cx: &mut Context<Picker<Self>>,
    ) -> Option<Self::ListItem> {
        let command_info = self.filtered_commands.get(ix)?;

@@ -179,7 +185,7 @@ impl PickerDelegate for SlashCommandDelegate {
                    .toggle_state(selected)
                    .tooltip({
                        let description = info.description.clone();
-                        move |cx| cx.new_view(|_| Tooltip::new(description.clone())).into()
+                        move |_, cx| cx.new(|_| Tooltip::new(description.clone())).into()
                    })
                    .child(
                        v_flex()
@@ -229,14 +235,14 @@ impl PickerDelegate for SlashCommandDelegate {
                    .inset(true)
                    .spacing(ListItemSpacing::Dense)
                    .toggle_state(selected)
-                    .child(renderer(cx)),
+                    .child(renderer(window, cx)),
            ),
        }
    }
 }

 impl<T: PopoverTrigger> RenderOnce for SlashCommandSelector<T> {
-    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
+    fn render(self, window: &mut Window, cx: &mut App) -> impl IntoElement {
        let all_models = self
            .working_set
            .featured_command_names(cx)
@@ -259,7 +265,7 @@ impl<T: PopoverTrigger> RenderOnce for SlashCommandSelector<T> {
            })
            .chain([SlashCommandEntry::Advert {
                name: "create-your-command".into(),
-                renderer: |cx| {
+                renderer: |_, cx| {
                    v_flex()
                        .w_full()
                        .child(
@@ -293,7 +299,7 @@ impl<T: PopoverTrigger> RenderOnce for SlashCommandSelector<T> {
                        )
                        .into_any_element()
                },
-                on_confirm: |cx| cx.open_url("https://zed.dev/docs/extensions/slash-commands"),
+                on_confirm: |_, cx| cx.open_url("https://zed.dev/docs/extensions/slash-commands"),
            }])
            .collect::<Vec<_>>();

@@ -304,8 +310,9 @@ impl<T: PopoverTrigger> RenderOnce for SlashCommandSelector<T> {
            selected_index: 0,
        };

-        let picker_view = cx.new_view(|cx| {
-            let picker = Picker::uniform_list(delegate, cx).max_height(Some(rems(20.).into()));
+        let picker_view = cx.new(|cx| {
+            let picker =
+                Picker::uniform_list(delegate, window, cx).max_height(Some(rems(20.).into()));
            picker
        });

@@ -314,7 +321,7 @@ impl<T: PopoverTrigger> RenderOnce for SlashCommandSelector<T> {
            .update(cx, |this, _| this.slash_menu_handle.clone())
            .ok();
        PopoverMenu::new("model-switcher")
-            .menu(move |_cx| Some(picker_view.clone()))
+            .menu(move |_window, _cx| Some(picker_view.clone()))
            .trigger(self.trigger)
            .attach(gpui::Corner::TopLeft)
            .anchor(gpui::Corner::BottomLeft)
--- a/crates/assistant_settings/Cargo.toml
+++ b/crates/assistant_settings/Cargo.toml
@@ -21,6 +21,7 @@ lmstudio = { workspace = true, features = ["schemars"] }
 log.workspace = true
 ollama = { workspace = true, features = ["schemars"] }
 open_ai = { workspace = true, features = ["schemars"] }
+deepseek = { workspace = true, features = ["schemars"] }
 schemars.workspace = true
 serde.workspace = true
 settings.workspace = true
--- a/crates/assistant_settings/src/assistant_settings.rs
+++ b/crates/assistant_settings/src/assistant_settings.rs
@@ -2,8 +2,9 @@ use std::sync::Arc;

 use ::open_ai::Model as OpenAiModel;
 use anthropic::Model as AnthropicModel;
+use deepseek::Model as DeepseekModel;
 use feature_flags::FeatureFlagAppExt;
-use gpui::{AppContext, Pixels};
+use gpui::{App, Pixels};
 use language_model::{CloudModel, LanguageModel};
 use lmstudio::Model as LmStudioModel;
 use ollama::Model as OllamaModel;
@@ -46,6 +47,11 @@ pub enum AssistantProviderContentV1 {
        default_model: Option<LmStudioModel>,
        api_url: Option<String>,
    },
+    #[serde(rename = "deepseek")]
+    DeepSeek {
+        default_model: Option<DeepseekModel>,
+        api_url: Option<String>,
+    },
 }

 #[derive(Debug, Default)]
@@ -62,7 +68,7 @@ pub struct AssistantSettings {
 }

 impl AssistantSettings {
-    pub fn are_live_diffs_enabled(&self, cx: &AppContext) -> bool {
+    pub fn are_live_diffs_enabled(&self, cx: &App) -> bool {
        cx.is_staff() || self.enable_experimental_live_diffs
    }
 }
@@ -149,6 +155,12 @@ impl AssistantSettingsContent {
                                    model: model.id().to_string(),
                                })
                            }
+                            AssistantProviderContentV1::DeepSeek { default_model, .. } => {
+                                default_model.map(|model| LanguageModelSelection {
+                                    provider: "deepseek".to_string(),
+                                    model: model.id().to_string(),
+                                })
+                            }
                        }),
                    inline_alternatives: None,
                    enable_experimental_live_diffs: None,
@@ -253,6 +265,18 @@ impl AssistantSettingsContent {
                            available_models,
                        });
                    }
+                    "deepseek" => {
+                        let api_url = match &settings.provider {
+                            Some(AssistantProviderContentV1::DeepSeek { api_url, .. }) => {
+                                api_url.clone()
+                            }
+                            _ => None,
+                        };
+                        settings.provider = Some(AssistantProviderContentV1::DeepSeek {
+                            default_model: DeepseekModel::from_id(&model).ok(),
+                            api_url,
+                        });
+                    }
                    _ => {}
                },
                VersionedAssistantSettingsContent::V2(settings) => {
@@ -341,6 +365,7 @@ fn providers_schema(_: &mut schemars::gen::SchemaGenerator) -> schemars::schema:
            "openai".into(),
            "zed.dev".into(),
            "copilot_chat".into(),
+            "deepseek".into(),
        ]),
        ..Default::default()
    }
@@ -380,7 +405,7 @@ pub struct AssistantSettingsContentV1 {
    default_height: Option<f32>,
    /// The provider of the assistant service.
    ///
-    /// This can be "openai", "anthropic", "ollama", "lmstudio", "zed.dev"
+    /// This can be "openai", "anthropic", "ollama", "lmstudio", "deepseek", "zed.dev"
    /// each with their respective default models and configurations.
    provider: Option<AssistantProviderContentV1>,
 }
@@ -422,7 +447,7 @@ impl Settings for AssistantSettings {

    fn load(
        sources: SettingsSources<Self::FileContent>,
-        _: &mut gpui::AppContext,
+        _: &mut gpui::App,
    ) -> anyhow::Result<Self> {
        let mut settings = AssistantSettings::default();

--- a/crates/assistant_slash_command/src/assistant_slash_command.rs
+++ b/crates/assistant_slash_command/src/assistant_slash_command.rs
@@ -8,7 +8,7 @@ pub use crate::slash_command_working_set::*;
 use anyhow::Result;
 use futures::stream::{self, BoxStream};
 use futures::StreamExt;
-use gpui::{AppContext, SharedString, Task, WeakView, WindowContext};
+use gpui::{App, SharedString, Task, WeakEntity, Window};
 use language::{BufferSnapshot, CodeLabel, LspAdapterDelegate, OffsetRangeExt};
 pub use language_model::Role;
 use serde::{Deserialize, Serialize};
@@ -18,7 +18,7 @@ use std::{
 };
 use workspace::{ui::IconName, Workspace};

-pub fn init(cx: &mut AppContext) {
+pub fn init(cx: &mut App) {
    SlashCommandRegistry::default_global(cx);
    extension_slash_command::init(cx);
 }
@@ -71,7 +71,7 @@ pub trait SlashCommand: 'static + Send + Sync {
    fn icon(&self) -> IconName {
        IconName::Slash
    }
-    fn label(&self, _cx: &AppContext) -> CodeLabel {
+    fn label(&self, _cx: &App) -> CodeLabel {
        CodeLabel::plain(self.name(), None)
    }
    fn description(&self) -> String;
@@ -80,26 +80,29 @@ pub trait SlashCommand: 'static + Send + Sync {
        self: Arc<Self>,
        arguments: &[String],
        cancel: Arc<AtomicBool>,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        workspace: Option<WeakEntity<Workspace>>,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>>;
    fn requires_argument(&self) -> bool;
    fn accepts_arguments(&self) -> bool {
        self.requires_argument()
    }
+    #[allow(clippy::too_many_arguments)]
    fn run(
        self: Arc<Self>,
        arguments: &[String],
        context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        // TODO: We're just using the `LspAdapterDelegate` here because that is
        // what the extension API is already expecting.
        //
        // It may be that `LspAdapterDelegate` needs a more general name, or
        // perhaps another kind of delegate is needed here.
        delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult>;
 }

--- a/crates/assistant_slash_command/src/extension_slash_command.rs
+++ b/crates/assistant_slash_command/src/extension_slash_command.rs
@@ -4,7 +4,7 @@ use std::sync::{atomic::AtomicBool, Arc};
 use anyhow::Result;
 use async_trait::async_trait;
 use extension::{Extension, ExtensionHostProxy, ExtensionSlashCommandProxy, WorktreeDelegate};
-use gpui::{AppContext, Task, WeakView, WindowContext};
+use gpui::{App, Task, WeakEntity, Window};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use ui::prelude::*;
 use workspace::Workspace;
@@ -14,7 +14,7 @@ use crate::{
    SlashCommandRegistry, SlashCommandResult,
 };

-pub fn init(cx: &mut AppContext) {
+pub fn init(cx: &mut App) {
    let proxy = ExtensionHostProxy::default_global(cx);
    proxy.register_slash_command_proxy(SlashCommandRegistryProxy {
        slash_command_registry: SlashCommandRegistry::global(cx),
@@ -97,8 +97,9 @@ impl SlashCommand for ExtensionSlashCommand {
        self: Arc<Self>,
        arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        let command = self.command.clone();
        let arguments = arguments.to_owned();
@@ -127,9 +128,10 @@ impl SlashCommand for ExtensionSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let command = self.command.clone();
        let arguments = arguments.to_owned();
--- a/crates/assistant_slash_command/src/slash_command_registry.rs
+++ b/crates/assistant_slash_command/src/slash_command_registry.rs
@@ -3,7 +3,7 @@ use std::sync::Arc;
 use collections::{BTreeSet, HashMap};
 use derive_more::{Deref, DerefMut};
 use gpui::Global;
-use gpui::{AppContext, ReadGlobal};
+use gpui::{App, ReadGlobal};
 use parking_lot::RwLock;

 use crate::SlashCommand;
@@ -26,14 +26,14 @@ pub struct SlashCommandRegistry {

 impl SlashCommandRegistry {
    /// Returns the global [`SlashCommandRegistry`].
-    pub fn global(cx: &AppContext) -> Arc<Self> {
+    pub fn global(cx: &App) -> Arc<Self> {
        GlobalSlashCommandRegistry::global(cx).0.clone()
    }

    /// Returns the global [`SlashCommandRegistry`].
    ///
    /// Inserts a default [`SlashCommandRegistry`] if one does not yet exist.
-    pub fn default_global(cx: &mut AppContext) -> Arc<Self> {
+    pub fn default_global(cx: &mut App) -> Arc<Self> {
        cx.default_global::<GlobalSlashCommandRegistry>().0.clone()
    }

--- a/crates/assistant_slash_command/src/slash_command_working_set.rs
+++ b/crates/assistant_slash_command/src/slash_command_working_set.rs
@@ -1,7 +1,7 @@
 use std::sync::Arc;

 use collections::HashMap;
-use gpui::AppContext;
+use gpui::App;
 use parking_lot::Mutex;

 use crate::{SlashCommand, SlashCommandRegistry};
@@ -23,7 +23,7 @@ struct WorkingSetState {
 }

 impl SlashCommandWorkingSet {
-    pub fn command(&self, name: &str, cx: &AppContext) -> Option<Arc<dyn SlashCommand>> {
+    pub fn command(&self, name: &str, cx: &App) -> Option<Arc<dyn SlashCommand>> {
        self.state
            .lock()
            .context_server_commands_by_name
@@ -32,7 +32,7 @@ impl SlashCommandWorkingSet {
            .or_else(|| SlashCommandRegistry::global(cx).command(name))
    }

-    pub fn command_names(&self, cx: &AppContext) -> Vec<Arc<str>> {
+    pub fn command_names(&self, cx: &App) -> Vec<Arc<str>> {
        let mut command_names = SlashCommandRegistry::global(cx).command_names();
        command_names.extend(
            self.state
@@ -45,7 +45,7 @@ impl SlashCommandWorkingSet {
        command_names
    }

-    pub fn featured_command_names(&self, cx: &AppContext) -> Vec<Arc<str>> {
+    pub fn featured_command_names(&self, cx: &App) -> Vec<Arc<str>> {
        SlashCommandRegistry::global(cx).featured_command_names()
    }

--- a/crates/assistant_slash_commands/Cargo.toml
+++ b/crates/assistant_slash_commands/Cargo.toml
@@ -45,6 +45,7 @@ toml.workspace = true
 ui.workspace = true
 util.workspace = true
 workspace.workspace = true
+worktree.workspace = true

 [dev-dependencies]
 env_logger.workspace = true
--- a/crates/assistant_slash_commands/src/assistant_slash_commands.rs
+++ b/crates/assistant_slash_commands/src/assistant_slash_commands.rs
@@ -17,7 +17,7 @@ mod symbols_command;
 mod tab_command;
 mod terminal_command;

-use gpui::AppContext;
+use gpui::App;
 use language::{CodeLabel, HighlightId};
 use ui::ActiveTheme as _;

@@ -40,11 +40,7 @@ pub use crate::symbols_command::*;
 pub use crate::tab_command::*;
 pub use crate::terminal_command::*;

-pub fn create_label_for_command(
-    command_name: &str,
-    arguments: &[&str],
-    cx: &AppContext,
-) -> CodeLabel {
+pub fn create_label_for_command(command_name: &str, arguments: &[&str], cx: &App) -> CodeLabel {
    let mut label = CodeLabel::default();
    label.push_str(command_name, None);
    label.push_str(" ", None);
--- a/crates/assistant_slash_commands/src/auto_command.rs
+++ b/crates/assistant_slash_commands/src/auto_command.rs
@@ -5,7 +5,7 @@ use assistant_slash_command::{
 };
 use feature_flags::FeatureFlag;
 use futures::StreamExt;
-use gpui::{AppContext, AsyncAppContext, AsyncWindowContext, Task, WeakView, WindowContext};
+use gpui::{App, AsyncApp, Task, WeakEntity, Window};
 use language::{CodeLabel, LspAdapterDelegate};
 use language_model::{
    LanguageModelCompletionEvent, LanguageModelRegistry, LanguageModelRequest,
@@ -45,7 +45,7 @@ impl SlashCommand for AutoCommand {
        self.description()
    }

-    fn label(&self, cx: &AppContext) -> CodeLabel {
+    fn label(&self, cx: &App) -> CodeLabel {
        create_label_for_command("auto", &["--prompt"], cx)
    }

@@ -53,8 +53,9 @@ impl SlashCommand for AutoCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        // There's no autocomplete for a prompt, since it's arbitrary text.
        // However, we can use this opportunity to kick off a drain of the backlog.
@@ -74,9 +75,9 @@ impl SlashCommand for AutoCommand {
            return Task::ready(Err(anyhow!("No project indexer, cannot use /auto")));
        };

-        let cx: &mut AppContext = cx;
+        let cx: &mut App = cx;

-        cx.spawn(|cx: gpui::AsyncAppContext| async move {
+        cx.spawn(|cx: gpui::AsyncApp| async move {
            let task = project_index.read_with(&cx, |project_index, cx| {
                project_index.flush_summary_backlogs(cx)
            })?;
@@ -96,9 +97,10 @@ impl SlashCommand for AutoCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: language::BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let Some(workspace) = workspace.upgrade() else {
            return Task::ready(Err(anyhow::anyhow!("workspace was dropped")));
@@ -115,7 +117,7 @@ impl SlashCommand for AutoCommand {
            return Task::ready(Err(anyhow!("no project indexer")));
        };

-        let task = cx.spawn(|cx: AsyncWindowContext| async move {
+        let task = window.spawn(cx, |cx| async move {
            let summaries = project_index
                .read_with(&cx, |project_index, cx| project_index.all_summaries(cx))?
                .await?;
@@ -187,7 +189,7 @@ struct CommandToRun {
 async fn commands_for_summaries(
    summaries: &[FileSummary],
    original_prompt: &str,
-    cx: &AsyncAppContext,
+    cx: &AsyncApp,
 ) -> Result<Vec<CommandToRun>> {
    if summaries.is_empty() {
        log::warn!("Inferring no context because there were no summaries available.");
--- a/crates/assistant_slash_commands/src/cargo_workspace_command.rs
+++ b/crates/assistant_slash_commands/src/cargo_workspace_command.rs
@@ -1,10 +1,10 @@
-use anyhow::{anyhow, Context, Result};
+use anyhow::{anyhow, Context as _, Result};
 use assistant_slash_command::{
    ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
    SlashCommandResult,
 };
 use fs::Fs;
-use gpui::{AppContext, Model, Task, WeakView};
+use gpui::{App, Entity, Task, WeakEntity};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use project::{Project, ProjectPath};
 use std::{
@@ -76,7 +76,7 @@ impl CargoWorkspaceSlashCommand {
        Ok(message)
    }

-    fn path_to_cargo_toml(project: Model<Project>, cx: &mut AppContext) -> Option<Arc<Path>> {
+    fn path_to_cargo_toml(project: Entity<Project>, cx: &mut App) -> Option<Arc<Path>> {
        let worktree = project.read(cx).worktrees(cx).next()?;
        let worktree = worktree.read(cx);
        let entry = worktree.entry_for_path("Cargo.toml")?;
@@ -107,8 +107,9 @@ impl SlashCommand for CargoWorkspaceSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Err(anyhow!("this command does not require argument")))
    }
@@ -122,9 +123,10 @@ impl SlashCommand for CargoWorkspaceSlashCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let output = workspace.update(cx, |workspace, cx| {
            let project = workspace.project().clone();
--- a/crates/assistant_slash_commands/src/context_server_command.rs
+++ b/crates/assistant_slash_commands/src/context_server_command.rs
@@ -8,7 +8,7 @@ use context_server::{
    manager::{ContextServer, ContextServerManager},
    types::Prompt,
 };
-use gpui::{AppContext, Model, Task, WeakView, WindowContext};
+use gpui::{App, Entity, Task, WeakEntity, Window};
 use language::{BufferSnapshot, CodeLabel, LspAdapterDelegate};
 use std::sync::atomic::AtomicBool;
 use std::sync::Arc;
@@ -19,14 +19,14 @@ use workspace::Workspace;
 use crate::create_label_for_command;

 pub struct ContextServerSlashCommand {
-    server_manager: Model<ContextServerManager>,
+    server_manager: Entity<ContextServerManager>,
    server_id: Arc<str>,
    prompt: Prompt,
 }

 impl ContextServerSlashCommand {
    pub fn new(
-        server_manager: Model<ContextServerManager>,
+        server_manager: Entity<ContextServerManager>,
        server: &Arc<ContextServer>,
        prompt: Prompt,
    ) -> Self {
@@ -43,7 +43,7 @@ impl SlashCommand for ContextServerSlashCommand {
        self.prompt.name.clone()
    }

-    fn label(&self, cx: &AppContext) -> language::CodeLabel {
+    fn label(&self, cx: &App) -> language::CodeLabel {
        let mut parts = vec![self.prompt.name.as_str()];
        if let Some(args) = &self.prompt.arguments {
            if let Some(arg) = args.first() {
@@ -77,8 +77,9 @@ impl SlashCommand for ContextServerSlashCommand {
        self: Arc<Self>,
        arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        let Ok((arg_name, arg_value)) = completion_argument(&self.prompt, arguments) else {
            return Task::ready(Err(anyhow!("Failed to complete argument")));
@@ -128,9 +129,10 @@ impl SlashCommand for ContextServerSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let server_id = self.server_id.clone();
        let prompt_name = self.prompt.name.clone();
--- a/crates/assistant_slash_commands/src/default_command.rs
+++ b/crates/assistant_slash_commands/src/default_command.rs
@@ -3,7 +3,7 @@ use assistant_slash_command::{
    ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
    SlashCommandResult,
 };
-use gpui::{Task, WeakView};
+use gpui::{Task, WeakEntity};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use prompt_library::PromptStore;
 use std::{
@@ -36,8 +36,9 @@ impl SlashCommand for DefaultSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancellation_flag: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Err(anyhow!("this command does not require argument")))
    }
@@ -47,9 +48,10 @@ impl SlashCommand for DefaultSlashCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let store = PromptStore::global(cx);
        cx.background_executor().spawn(async move {
--- a/crates/assistant_slash_commands/src/delta_command.rs
+++ b/crates/assistant_slash_commands/src/delta_command.rs
@@ -6,7 +6,7 @@ use assistant_slash_command::{
 };
 use collections::HashSet;
 use futures::future;
-use gpui::{Task, WeakView, WindowContext};
+use gpui::{App, Task, WeakEntity, Window};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use std::sync::{atomic::AtomicBool, Arc};
 use text::OffsetRangeExt;
@@ -40,8 +40,9 @@ impl SlashCommand for DeltaSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancellation_flag: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Err(anyhow!("this command does not require argument")))
    }
@@ -51,9 +52,10 @@ impl SlashCommand for DeltaSlashCommand {
        _arguments: &[String],
        context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let mut paths = HashSet::default();
        let mut file_command_old_outputs = Vec::new();
@@ -77,6 +79,7 @@ impl SlashCommand for DeltaSlashCommand {
                        context_buffer.clone(),
                        workspace.clone(),
                        delegate.clone(),
+                        window,
                        cx,
                    ));
                }
--- a/crates/assistant_slash_commands/src/diagnostics_command.rs
+++ b/crates/assistant_slash_commands/src/diagnostics_command.rs
@@ -4,7 +4,7 @@ use assistant_slash_command::{
    SlashCommandResult,
 };
 use fuzzy::{PathMatch, StringMatchCandidate};
-use gpui::{AppContext, Model, Task, View, WeakView};
+use gpui::{App, Entity, Task, WeakEntity};
 use language::{
    Anchor, BufferSnapshot, DiagnosticEntry, DiagnosticSeverity, LspAdapterDelegate,
    OffsetRangeExt, ToOffset,
@@ -30,8 +30,8 @@ impl DiagnosticsSlashCommand {
        &self,
        query: String,
        cancellation_flag: Arc<AtomicBool>,
-        workspace: &View<Workspace>,
-        cx: &mut AppContext,
+        workspace: &Entity<Workspace>,
+        cx: &mut App,
    ) -> Task<Vec<PathMatch>> {
        if query.is_empty() {
            let workspace = workspace.read(cx);
@@ -90,7 +90,7 @@ impl SlashCommand for DiagnosticsSlashCommand {
        "diagnostics".into()
    }

-    fn label(&self, cx: &AppContext) -> language::CodeLabel {
+    fn label(&self, cx: &App) -> language::CodeLabel {
        create_label_for_command("diagnostics", &[INCLUDE_WARNINGS_ARGUMENT], cx)
    }

@@ -118,8 +118,9 @@ impl SlashCommand for DiagnosticsSlashCommand {
        self: Arc<Self>,
        arguments: &[String],
        cancellation_flag: Arc<AtomicBool>,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        workspace: Option<WeakEntity<Workspace>>,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        let Some(workspace) = workspace.and_then(|workspace| workspace.upgrade()) else {
            return Task::ready(Err(anyhow!("workspace was dropped")));
@@ -172,9 +173,10 @@ impl SlashCommand for DiagnosticsSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let Some(workspace) = workspace.upgrade() else {
            return Task::ready(Err(anyhow!("workspace was dropped")));
@@ -184,7 +186,7 @@ impl SlashCommand for DiagnosticsSlashCommand {

        let task = collect_diagnostics(workspace.read(cx).project().clone(), options, cx);

-        cx.spawn(move |_| async move {
+        window.spawn(cx, move |_| async move {
            task.await?
                .map(|output| output.to_event_stream())
                .ok_or_else(|| anyhow!("No diagnostics found"))
@@ -223,9 +225,9 @@ impl Options {
 }

 fn collect_diagnostics(
-    project: Model<Project>,
+    project: Entity<Project>,
    options: Options,
-    cx: &mut AppContext,
+    cx: &mut App,
 ) -> Task<Result<Option<SlashCommandOutput>>> {
    let error_source = if let Some(path_matcher) = &options.path_matcher {
        debug_assert_eq!(path_matcher.sources().len(), 1);
@@ -301,7 +303,7 @@ fn collect_diagnostics(
                .await
                .log_err()
            {
-                let snapshot = cx.read_model(&buffer, |buffer, _| buffer.snapshot())?;
+                let snapshot = cx.read_entity(&buffer, |buffer, _| buffer.snapshot())?;
                collect_buffer_diagnostics(&mut output, &snapshot, options.include_warnings);
            }

--- a/crates/assistant_slash_commands/src/docs_command.rs
+++ b/crates/assistant_slash_commands/src/docs_command.rs
@@ -8,7 +8,7 @@ use assistant_slash_command::{
    ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
    SlashCommandResult,
 };
-use gpui::{AppContext, BackgroundExecutor, Model, Task, WeakView};
+use gpui::{App, BackgroundExecutor, Entity, Task, WeakEntity};
 use indexed_docs::{
    DocsDotRsProvider, IndexedDocsRegistry, IndexedDocsStore, LocalRustdocProvider, PackageName,
    ProviderId,
@@ -24,7 +24,7 @@ pub struct DocsSlashCommand;
 impl DocsSlashCommand {
    pub const NAME: &'static str = "docs";

-    fn path_to_cargo_toml(project: Model<Project>, cx: &mut AppContext) -> Option<Arc<Path>> {
+    fn path_to_cargo_toml(project: Entity<Project>, cx: &mut App) -> Option<Arc<Path>> {
        let worktree = project.read(cx).worktrees(cx).next()?;
        let worktree = worktree.read(cx);
        let entry = worktree.entry_for_path("Cargo.toml")?;
@@ -43,8 +43,8 @@ impl DocsSlashCommand {
    /// access the workspace so we can read the project.
    fn ensure_rust_doc_providers_are_registered(
        &self,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut AppContext,
+        workspace: Option<WeakEntity<Workspace>>,
+        cx: &mut App,
    ) {
        let indexed_docs_registry = IndexedDocsRegistry::global(cx);
        if indexed_docs_registry
@@ -164,8 +164,9 @@ impl SlashCommand for DocsSlashCommand {
        self: Arc<Self>,
        arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        workspace: Option<WeakEntity<Workspace>>,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        self.ensure_rust_doc_providers_are_registered(workspace, cx);

@@ -272,9 +273,10 @@ impl SlashCommand for DocsSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        if arguments.is_empty() {
            return Task::ready(Err(anyhow!("missing an argument")));
--- a/crates/assistant_slash_commands/src/fetch_command.rs
+++ b/crates/assistant_slash_commands/src/fetch_command.rs
@@ -9,7 +9,7 @@ use assistant_slash_command::{
    SlashCommandResult,
 };
 use futures::AsyncReadExt;
-use gpui::{Task, WeakView};
+use gpui::{Task, WeakEntity};
 use html_to_markdown::{convert_html_to_markdown, markdown, TagHandler};
 use http_client::{AsyncBody, HttpClient, HttpClientWithUrl};
 use language::{BufferSnapshot, LspAdapterDelegate};
@@ -124,8 +124,9 @@ impl SlashCommand for FetchSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Ok(Vec::new()))
    }
@@ -135,9 +136,10 @@ impl SlashCommand for FetchSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let Some(argument) = arguments.first() else {
            return Task::ready(Err(anyhow!("missing URL")));
--- a/crates/assistant_slash_commands/src/file_command.rs
+++ b/crates/assistant_slash_commands/src/file_command.rs
@@ -6,7 +6,7 @@ use assistant_slash_command::{
 use futures::channel::mpsc;
 use futures::Stream;
 use fuzzy::PathMatch;
-use gpui::{AppContext, Model, Task, View, WeakView};
+use gpui::{App, Entity, Task, WeakEntity};
 use language::{BufferSnapshot, CodeLabel, HighlightId, LineEnding, LspAdapterDelegate};
 use project::{PathMatchCandidateSet, Project};
 use serde::{Deserialize, Serialize};
@@ -20,6 +20,7 @@ use std::{
 use ui::prelude::*;
 use util::ResultExt;
 use workspace::Workspace;
+use worktree::ChildEntriesOptions;

 pub struct FileSlashCommand;

@@ -28,8 +29,8 @@ impl FileSlashCommand {
        &self,
        query: String,
        cancellation_flag: Arc<AtomicBool>,
-        workspace: &View<Workspace>,
-        cx: &mut AppContext,
+        workspace: &Entity<Workspace>,
+        cx: &mut App,
    ) -> Task<Vec<PathMatch>> {
        if query.is_empty() {
            let workspace = workspace.read(cx);
@@ -42,7 +43,13 @@ impl FileSlashCommand {
                .chain(project.worktrees(cx).flat_map(|worktree| {
                    let worktree = worktree.read(cx);
                    let id = worktree.id();
-                    worktree.child_entries(Path::new("")).map(move |entry| {
+                    let options = ChildEntriesOptions {
+                        include_files: true,
+                        include_dirs: true,
+                        include_ignored: false,
+                    };
+                    let entries = worktree.child_entries_with_options(Path::new(""), options);
+                    entries.map(move |entry| {
                        (
                            project::ProjectPath {
                                worktree_id: id,
@@ -134,8 +141,9 @@ impl SlashCommand for FileSlashCommand {
        self: Arc<Self>,
        arguments: &[String],
        cancellation_flag: Arc<AtomicBool>,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        workspace: Option<WeakEntity<Workspace>>,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        let Some(workspace) = workspace.and_then(|workspace| workspace.upgrade()) else {
            return Task::ready(Err(anyhow!("workspace was dropped")));
@@ -187,9 +195,10 @@ impl SlashCommand for FileSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let Some(workspace) = workspace.upgrade() else {
            return Task::ready(Err(anyhow!("workspace was dropped")));
@@ -209,9 +218,9 @@ impl SlashCommand for FileSlashCommand {
 }

 fn collect_files(
-    project: Model<Project>,
+    project: Entity<Project>,
    glob_inputs: &[String],
-    cx: &mut AppContext,
+    cx: &mut App,
 ) -> impl Stream<Item = Result<SlashCommandEvent>> {
    let Ok(matchers) = glob_inputs
        .into_iter()
--- a/crates/assistant_slash_commands/src/now_command.rs
+++ b/crates/assistant_slash_commands/src/now_command.rs
@@ -7,7 +7,7 @@ use assistant_slash_command::{
    SlashCommandResult,
 };
 use chrono::Local;
-use gpui::{Task, WeakView};
+use gpui::{Task, WeakEntity};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use ui::prelude::*;
 use workspace::Workspace;
@@ -35,8 +35,9 @@ impl SlashCommand for NowSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Ok(Vec::new()))
    }
@@ -46,9 +47,10 @@ impl SlashCommand for NowSlashCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        _cx: &mut WindowContext,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let now = Local::now();
        let text = format!("Today is {now}.", now = now.to_rfc2822());
--- a/crates/assistant_slash_commands/src/project_command.rs
+++ b/crates/assistant_slash_commands/src/project_command.rs
@@ -10,7 +10,7 @@ use assistant_slash_command::{
    SlashCommandResult,
 };
 use feature_flags::FeatureFlag;
-use gpui::{AppContext, Task, WeakView, WindowContext};
+use gpui::{App, Task, WeakEntity};
 use language::{Anchor, CodeLabel, LspAdapterDelegate};
 use language_model::{LanguageModelRegistry, LanguageModelTool};
 use prompt_library::PromptBuilder;
@@ -43,7 +43,7 @@ impl SlashCommand for ProjectSlashCommand {
        "project".into()
    }

-    fn label(&self, cx: &AppContext) -> CodeLabel {
+    fn label(&self, cx: &App) -> CodeLabel {
        create_label_for_command("project", &[], cx)
    }

@@ -67,8 +67,9 @@ impl SlashCommand for ProjectSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Ok(Vec::new()))
    }
@@ -78,9 +79,10 @@ impl SlashCommand for ProjectSlashCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<Anchor>],
        context_buffer: language::BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let model_registry = LanguageModelRegistry::read_global(cx);
        let current_model = model_registry.active_model();
@@ -97,7 +99,7 @@ impl SlashCommand for ProjectSlashCommand {
            return Task::ready(Err(anyhow::anyhow!("no project indexer")));
        };

-        cx.spawn(|mut cx| async move {
+        window.spawn(cx, |mut cx| async move {
            let current_model = current_model.ok_or_else(|| anyhow!("no model selected"))?;

            let prompt =
--- a/crates/assistant_slash_commands/src/prompt_command.rs
+++ b/crates/assistant_slash_commands/src/prompt_command.rs
@@ -1,9 +1,9 @@
-use anyhow::{anyhow, Context, Result};
+use anyhow::{anyhow, Context as _, Result};
 use assistant_slash_command::{
    ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
    SlashCommandResult,
 };
-use gpui::{Task, WeakView};
+use gpui::{Task, WeakEntity};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use prompt_library::PromptStore;
 use std::sync::{atomic::AtomicBool, Arc};
@@ -37,8 +37,9 @@ impl SlashCommand for PromptSlashCommand {
        self: Arc<Self>,
        arguments: &[String],
        _cancellation_flag: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        let store = PromptStore::global(cx);
        let query = arguments.to_owned().join(" ");
@@ -64,9 +65,10 @@ impl SlashCommand for PromptSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let title = arguments.to_owned().join(" ");
        if title.trim().is_empty() {
--- a/crates/assistant_slash_commands/src/search_command.rs
+++ b/crates/assistant_slash_commands/src/search_command.rs
@@ -4,7 +4,7 @@ use assistant_slash_command::{
    SlashCommandResult,
 };
 use feature_flags::FeatureFlag;
-use gpui::{AppContext, Task, WeakView};
+use gpui::{App, Task, WeakEntity};
 use language::{CodeLabel, LspAdapterDelegate};
 use semantic_index::{LoadedSearchResult, SemanticDb};
 use std::{
@@ -34,7 +34,7 @@ impl SlashCommand for SearchSlashCommand {
        "search".into()
    }

-    fn label(&self, cx: &AppContext) -> CodeLabel {
+    fn label(&self, cx: &App) -> CodeLabel {
        create_label_for_command("search", &["--n"], cx)
    }

@@ -58,8 +58,9 @@ impl SlashCommand for SearchSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Ok(Vec::new()))
    }
@@ -69,9 +70,10 @@ impl SlashCommand for SearchSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: language::BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let Some(workspace) = workspace.upgrade() else {
            return Task::ready(Err(anyhow::anyhow!("workspace was dropped")));
@@ -107,7 +109,7 @@ impl SlashCommand for SearchSlashCommand {
            return Task::ready(Err(anyhow::anyhow!("no project indexer")));
        };

-        cx.spawn(|cx| async move {
+        window.spawn(cx, |cx| async move {
            let results = project_index
                .read_with(&cx, |project_index, cx| {
                    project_index.search(vec![query.clone()], limit.unwrap_or(5), cx)
--- a/crates/assistant_slash_commands/src/selection_command.rs
+++ b/crates/assistant_slash_commands/src/selection_command.rs
@@ -5,8 +5,7 @@ use assistant_slash_command::{
 };
 use editor::Editor;
 use futures::StreamExt;
-use gpui::{AppContext, Task, WeakView};
-use gpui::{SharedString, ViewContext, WindowContext};
+use gpui::{App, Context, SharedString, Task, WeakEntity, Window};
 use language::{BufferSnapshot, CodeLabel, LspAdapterDelegate};
 use std::sync::atomic::AtomicBool;
 use std::sync::Arc;
@@ -22,7 +21,7 @@ impl SlashCommand for SelectionCommand {
        "selection".into()
    }

-    fn label(&self, _cx: &AppContext) -> CodeLabel {
+    fn label(&self, _cx: &App) -> CodeLabel {
        CodeLabel::plain(self.name(), None)
    }

@@ -50,8 +49,9 @@ impl SlashCommand for SelectionCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Err(anyhow!("this command does not require argument")))
    }
@@ -61,9 +61,10 @@ impl SlashCommand for SelectionCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let mut events = vec![];

@@ -102,7 +103,7 @@ impl SlashCommand for SelectionCommand {

 pub fn selections_creases(
    workspace: &mut workspace::Workspace,
-    cx: &mut ViewContext<Workspace>,
+    cx: &mut Context<Workspace>,
 ) -> Option<Vec<(String, String)>> {
    let editor = workspace
        .active_item(cx)
--- a/crates/assistant_slash_commands/src/streaming_example_command.rs
+++ b/crates/assistant_slash_commands/src/streaming_example_command.rs
@@ -9,7 +9,7 @@ use assistant_slash_command::{
 };
 use feature_flags::FeatureFlag;
 use futures::channel::mpsc;
-use gpui::{Task, WeakView};
+use gpui::{Task, WeakEntity};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use smol::stream::StreamExt;
 use smol::Timer;
@@ -45,8 +45,9 @@ impl SlashCommand for StreamingExampleSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Ok(Vec::new()))
    }
@@ -56,9 +57,10 @@ impl SlashCommand for StreamingExampleSlashCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        _workspace: WeakView<Workspace>,
+        _workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let (events_tx, events_rx) = mpsc::unbounded();
        cx.background_executor()
--- a/crates/assistant_slash_commands/src/symbols_command.rs
+++ b/crates/assistant_slash_commands/src/symbols_command.rs
@@ -4,11 +4,11 @@ use assistant_slash_command::{
    SlashCommandResult,
 };
 use editor::Editor;
-use gpui::{Task, WeakView};
+use gpui::{Task, WeakEntity};
 use language::{BufferSnapshot, LspAdapterDelegate};
 use std::sync::Arc;
 use std::{path::Path, sync::atomic::AtomicBool};
-use ui::{IconName, WindowContext};
+use ui::{App, IconName, Window};
 use workspace::Workspace;

 pub struct OutlineSlashCommand;
@@ -34,8 +34,9 @@ impl SlashCommand for OutlineSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Err(anyhow!("this command does not require argument")))
    }
@@ -49,9 +50,10 @@ impl SlashCommand for OutlineSlashCommand {
        _arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let output = workspace.update(cx, |workspace, cx| {
            let Some(active_item) = workspace.active_item(cx) else {
--- a/crates/assistant_slash_commands/src/tab_command.rs
+++ b/crates/assistant_slash_commands/src/tab_command.rs
@@ -1,4 +1,4 @@
-use anyhow::{Context, Result};
+use anyhow::{Context as _, Result};
 use assistant_slash_command::{
    ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
    SlashCommandResult,
@@ -6,13 +6,13 @@ use assistant_slash_command::{
 use collections::{HashMap, HashSet};
 use editor::Editor;
 use futures::future::join_all;
-use gpui::{Entity, Task, WeakView};
+use gpui::{Task, WeakEntity};
 use language::{BufferSnapshot, CodeLabel, HighlightId, LspAdapterDelegate};
 use std::{
    path::PathBuf,
    sync::{atomic::AtomicBool, Arc},
 };
-use ui::{prelude::*, ActiveTheme, WindowContext};
+use ui::{prelude::*, ActiveTheme, App, Window};
 use util::ResultExt;
 use workspace::Workspace;

@@ -51,8 +51,9 @@ impl SlashCommand for TabSlashCommand {
        self: Arc<Self>,
        arguments: &[String],
        cancel: Arc<AtomicBool>,
-        workspace: Option<WeakView<Workspace>>,
-        cx: &mut WindowContext,
+        workspace: Option<WeakEntity<Workspace>>,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        let mut has_all_tabs_completion_item = false;
        let argument_set = arguments
@@ -82,10 +83,10 @@ impl SlashCommand for TabSlashCommand {
        });
        let current_query = arguments.last().cloned().unwrap_or_default();
        let tab_items_search =
-            tab_items_for_queries(workspace, &[current_query], cancel, false, cx);
+            tab_items_for_queries(workspace, &[current_query], cancel, false, window, cx);

        let comment_id = cx.theme().syntax().highlight_id("comment").map(HighlightId);
-        cx.spawn(|_| async move {
+        window.spawn(cx, |_| async move {
            let tab_items = tab_items_search.await?;
            let run_command = tab_items.len() == 1;
            let tab_completion_items = tab_items.into_iter().filter_map(|(path, ..)| {
@@ -137,15 +138,17 @@ impl SlashCommand for TabSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let tab_items_search = tab_items_for_queries(
            Some(workspace),
            arguments,
            Arc::new(AtomicBool::new(false)),
            true,
+            window,
            cx,
        );

@@ -160,15 +163,16 @@ impl SlashCommand for TabSlashCommand {
 }

 fn tab_items_for_queries(
-    workspace: Option<WeakView<Workspace>>,
+    workspace: Option<WeakEntity<Workspace>>,
    queries: &[String],
    cancel: Arc<AtomicBool>,
    strict_match: bool,
-    cx: &mut WindowContext,
+    window: &mut Window,
+    cx: &mut App,
 ) -> Task<anyhow::Result<Vec<(Option<PathBuf>, BufferSnapshot, usize)>>> {
    let empty_query = queries.is_empty() || queries.iter().all(|query| query.trim().is_empty());
    let queries = queries.to_owned();
-    cx.spawn(|mut cx| async move {
+    window.spawn(cx, |mut cx| async move {
        let mut open_buffers =
            workspace
                .context("no workspace")?
@@ -281,7 +285,7 @@ fn tab_items_for_queries(

 fn active_item_buffer(
    workspace: &mut Workspace,
-    cx: &mut ViewContext<Workspace>,
+    cx: &mut Context<Workspace>,
 ) -> anyhow::Result<BufferSnapshot> {
    let active_editor = workspace
        .active_item(cx)
--- a/crates/assistant_slash_commands/src/terminal_command.rs
+++ b/crates/assistant_slash_commands/src/terminal_command.rs
@@ -6,7 +6,7 @@ use assistant_slash_command::{
    ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
    SlashCommandResult,
 };
-use gpui::{AppContext, Task, View, WeakView};
+use gpui::{App, Entity, Task, WeakEntity};
 use language::{BufferSnapshot, CodeLabel, LspAdapterDelegate};
 use terminal_view::{terminal_panel::TerminalPanel, TerminalView};
 use ui::prelude::*;
@@ -25,7 +25,7 @@ impl SlashCommand for TerminalSlashCommand {
        "terminal".into()
    }

-    fn label(&self, cx: &AppContext) -> CodeLabel {
+    fn label(&self, cx: &App) -> CodeLabel {
        create_label_for_command("terminal", &[LINE_COUNT_ARG], cx)
    }

@@ -53,8 +53,9 @@ impl SlashCommand for TerminalSlashCommand {
        self: Arc<Self>,
        _arguments: &[String],
        _cancel: Arc<AtomicBool>,
-        _workspace: Option<WeakView<Workspace>>,
-        _cx: &mut WindowContext,
+        _workspace: Option<WeakEntity<Workspace>>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<Vec<ArgumentCompletion>>> {
        Task::ready(Ok(Vec::new()))
    }
@@ -64,9 +65,10 @@ impl SlashCommand for TerminalSlashCommand {
        arguments: &[String],
        _context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
        _context_buffer: BufferSnapshot,
-        workspace: WeakView<Workspace>,
+        workspace: WeakEntity<Workspace>,
        _delegate: Option<Arc<dyn LspAdapterDelegate>>,
-        cx: &mut WindowContext,
+        _: &mut Window,
+        cx: &mut App,
    ) -> Task<SlashCommandResult> {
        let Some(workspace) = workspace.upgrade() else {
            return Task::ready(Err(anyhow::anyhow!("workspace was dropped")));
@@ -83,7 +85,7 @@ impl SlashCommand for TerminalSlashCommand {

        let lines = active_terminal
            .read(cx)
-            .model()
+            .entity()
            .read(cx)
            .last_n_non_empty_lines(line_count);

@@ -107,9 +109,9 @@ impl SlashCommand for TerminalSlashCommand {
 }

 fn resolve_active_terminal(
-    workspace: &View<Workspace>,
-    cx: &WindowContext,
-) -> Option<View<TerminalView>> {
+    workspace: &Entity<Workspace>,
+    cx: &mut App,
+) -> Option<Entity<TerminalView>> {
    if let Some(terminal_view) = workspace
        .read(cx)
        .active_item(cx)
--- a/crates/assistant_tool/src/assistant_tool.rs
+++ b/crates/assistant_tool/src/assistant_tool.rs
@@ -4,13 +4,13 @@ mod tool_working_set;
 use std::sync::Arc;

 use anyhow::Result;
-use gpui::{AppContext, Task, WeakView, WindowContext};
+use gpui::{App, Task, WeakEntity, Window};
 use workspace::Workspace;

 pub use crate::tool_registry::*;
 pub use crate::tool_working_set::*;

-pub fn init(cx: &mut AppContext) {
+pub fn init(cx: &mut App) {
    ToolRegistry::default_global(cx);
 }

@@ -31,7 +31,8 @@ pub trait Tool: 'static + Send + Sync {
    fn run(
        self: Arc<Self>,
        input: serde_json::Value,
-        workspace: WeakView<Workspace>,
-        cx: &mut WindowContext,
+        workspace: WeakEntity<Workspace>,
+        window: &mut Window,
+        cx: &mut App,
    ) -> Task<Result<String>>;
 }
--- a/crates/assistant_tool/src/tool_registry.rs
+++ b/crates/assistant_tool/src/tool_registry.rs
@@ -3,7 +3,7 @@ use std::sync::Arc;
 use collections::HashMap;
 use derive_more::{Deref, DerefMut};
 use gpui::Global;
-use gpui::{AppContext, ReadGlobal};
+use gpui::{App, ReadGlobal};
 use parking_lot::RwLock;

 use crate::Tool;
@@ -25,14 +25,14 @@ pub struct ToolRegistry {

 impl ToolRegistry {
    /// Returns the global [`ToolRegistry`].
-    pub fn global(cx: &AppContext) -> Arc<Self> {
+    pub fn global(cx: &App) -> Arc<Self> {
        GlobalToolRegistry::global(cx).0.clone()
    }

    /// Returns the global [`ToolRegistry`].
    ///
    /// Inserts a default [`ToolRegistry`] if one does not yet exist.
-    pub fn default_global(cx: &mut AppContext) -> Arc<Self> {
+    pub fn default_global(cx: &mut App) -> Arc<Self> {
        cx.default_global::<GlobalToolRegistry>().0.clone()
    }

--- a/crates/assistant_tool/src/tool_working_set.rs
+++ b/crates/assistant_tool/src/tool_working_set.rs
@@ -1,7 +1,7 @@
 use std::sync::Arc;

 use collections::HashMap;
-use gpui::AppContext;
+use gpui::App;
 use parking_lot::Mutex;

 use crate::{Tool, ToolRegistry};
@@ -23,7 +23,7 @@ struct WorkingSetState {
 }

 impl ToolWorkingSet {
-    pub fn tool(&self, name: &str, cx: &AppContext) -> Option<Arc<dyn Tool>> {
+    pub fn tool(&self, name: &str, cx: &App) -> Option<Arc<dyn Tool>> {
        self.state
            .lock()
            .context_server_tools_by_name
@@ -32,7 +32,7 @@ impl ToolWorkingSet {
            .or_else(|| ToolRegistry::global(cx).tool(name))
    }

-    pub fn tools(&self, cx: &AppContext) -> Vec<Arc<dyn Tool>> {
+    pub fn tools(&self, cx: &App) -> Vec<Arc<dyn Tool>> {
        let mut tools = ToolRegistry::global(cx).tools();
        tools.extend(
            self.state
--- a/crates/assistant_tools/src/assistant_tools.rs
+++ b/crates/assistant_tools/src/assistant_tools.rs
@@ -1,11 +1,11 @@
 mod now_tool;

 use assistant_tool::ToolRegistry;
-use gpui::AppContext;
+use gpui::App;

 use crate::now_tool::NowTool;

-pub fn init(cx: &mut AppContext) {
+pub fn init(cx: &mut App) {
    assistant_tool::init(cx);

    let registry = ToolRegistry::global(cx);
--- a/crates/assistant_tools/src/now_tool.rs
+++ b/crates/assistant_tools/src/now_tool.rs
@@ -3,7 +3,7 @@ use std::sync::Arc;
 use anyhow::{anyhow, Result};
 use assistant_tool::Tool;
 use chrono::{Local, Utc};
-use gpui::{Task, WeakView, WindowContext};
+use gpui::{App, Task, WeakEntity, Window};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};

@@ -41,8 +41,9 @@ impl Tool for NowTool {
    fn run(
        self: Arc<Self>,
        input: serde_json::Value,
-        _workspace: WeakView<workspace::Workspace>,
-        _cx: &mut WindowContext,
+        _workspace: WeakEntity<workspace::Workspace>,
+        _window: &mut Window,
+        _cx: &mut App,
    ) -> Task<Result<String>> {
        let input: FileToolInput = match serde_json::from_value(input) {
            Ok(input) => input,
--- a/crates/audio/src/assets.rs
+++ b/crates/audio/src/assets.rs
@@ -2,7 +2,7 @@ use std::{io::Cursor, sync::Arc};

 use anyhow::Result;
 use collections::HashMap;
-use gpui::{AppContext, AssetSource, Global};
+use gpui::{App, AssetSource, Global};
 use rodio::{
    source::{Buffered, SamplesConverter},
    Decoder, Source,
@@ -27,11 +27,11 @@ impl SoundRegistry {
        })
    }

-    pub fn global(cx: &AppContext) -> Arc<Self> {
+    pub fn global(cx: &App) -> Arc<Self> {
        cx.global::<GlobalSoundRegistry>().0.clone()
    }

-    pub(crate) fn set_global(source: impl AssetSource, cx: &mut AppContext) {
+    pub(crate) fn set_global(source: impl AssetSource, cx: &mut App) {
        cx.set_global(GlobalSoundRegistry(SoundRegistry::new(source)));
    }

--- a/crates/audio/src/audio.rs
+++ b/crates/audio/src/audio.rs
@@ -1,12 +1,12 @@
 use assets::SoundRegistry;
 use derive_more::{Deref, DerefMut};
-use gpui::{AppContext, AssetSource, BorrowAppContext, Global};
+use gpui::{App, AssetSource, BorrowAppContext, Global};
 use rodio::{OutputStream, OutputStreamHandle};
 use util::ResultExt;

 mod assets;

-pub fn init(source: impl AssetSource, cx: &mut AppContext) {
+pub fn init(source: impl AssetSource, cx: &mut App) {
    SoundRegistry::set_global(source, cx);
    cx.set_global(GlobalAudio(Audio::new()));
 }
@@ -59,7 +59,7 @@ impl Audio {
        self.output_handle.as_ref()
    }

-    pub fn play_sound(sound: Sound, cx: &mut AppContext) {
+    pub fn play_sound(sound: Sound, cx: &mut App) {
        if !cx.has_global::<GlobalAudio>() {
            return;
        }
@@ -72,7 +72,7 @@ impl Audio {
        });
    }

-    pub fn end_call(cx: &mut AppContext) {
+    pub fn end_call(cx: &mut App) {
        if !cx.has_global::<GlobalAudio>() {
            return;
        }
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
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