Update git_ui.rs

Update git_panel.rs
Revert "Merge branch 'main' into git-panel-commit-editor"
2024-12-16 15:30:27 -05:00 · 2024-12-16 15:30:25 -05:00 · 2024-12-16 15:29:44 -05:00 · 2024-12-16 15:26:45 -05:00 · 2024-12-16 15:12:49 -05:00 · 2024-12-16 16:42:09 -03:00
357 changed files with 28356 additions and 11600 deletions
--- a/.github/ISSUE_TEMPLATE/1_bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/1_bug_report.yml
@@ -26,8 +26,8 @@ body:
      required: true
  - type: textarea
    attributes:
-      label: If applicable, add mockups / screenshots to help explain present your vision of the feature
-      description: Drag issues into the text input below
+      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
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@@ -1,3 +1,4 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-issue-config.json
 blank_issues_enabled: false
 contact_links:
  - name: Language Request
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -129,7 +129,9 @@ jobs:
        run: |
          cargo build --workspace --bins --all-features
          cargo check -p gpui --features "macos-blade"
+          cargo check -p workspace
          cargo build -p remote_server
+          script/check-rust-livekit-macos

  linux_tests:
    timeout-minutes: 60
@@ -161,8 +163,10 @@ jobs:
      - name: Run tests
        uses: ./.github/actions/run_tests

-      - name: Build Zed
-        run: cargo build -p zed
+      - name: Build other binaries and features
+        run: |
+          cargo build -p zed
+          cargo check -p workspace

  build_remote_server:
    timeout-minutes: 60
--- a/.github/workflows/community_update_all_top_ranking_issues.yml
+++ b/.github/workflows/community_update_all_top_ranking_issues.yml
@@ -8,7 +8,7 @@ on:
 jobs:
  update_top_ranking_issues:
    runs-on: ubuntu-latest
-    if: github.repository_owner == 'zed-industries'
+    if: github.repository == 'zed-industries/zed'
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
      - name: Set up uv
--- a/.github/workflows/community_update_weekly_top_ranking_issues.yml
+++ b/.github/workflows/community_update_weekly_top_ranking_issues.yml
@@ -8,7 +8,7 @@ on:
 jobs:
  update_top_ranking_issues:
    runs-on: ubuntu-latest
-    if: github.repository_owner == 'zed-industries'
+    if: github.repository == 'zed-industries/zed'
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
      - name: Set up uv
--- a/.github/workflows/deploy_cloudflare.yml
+++ b/.github/workflows/deploy_cloudflare.yml
@@ -37,28 +37,28 @@ jobs:
          mdbook build ./docs --dest-dir=../target/deploy/docs/

      - name: Deploy Docs
-        uses: cloudflare/wrangler-action@05f17c4a695b4d94b57b59997562c6a4624c64e4 # v3
+        uses: cloudflare/wrangler-action@6d58852c35a27e6034745c5d0bc373d739014f7f # v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          command: pages deploy target/deploy --project-name=docs

      - name: Deploy Install
-        uses: cloudflare/wrangler-action@05f17c4a695b4d94b57b59997562c6a4624c64e4 # v3
+        uses: cloudflare/wrangler-action@6d58852c35a27e6034745c5d0bc373d739014f7f # v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          command: r2 object put -f script/install.sh zed-open-source-website-assets/install.sh

      - name: Deploy Docs Workers
-        uses: cloudflare/wrangler-action@05f17c4a695b4d94b57b59997562c6a4624c64e4 # v3
+        uses: cloudflare/wrangler-action@6d58852c35a27e6034745c5d0bc373d739014f7f # v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          command: deploy .cloudflare/docs-proxy/src/worker.js

      - name: Deploy Install Workers
-        uses: cloudflare/wrangler-action@05f17c4a695b4d94b57b59997562c6a4624c64e4 # v3
+        uses: cloudflare/wrangler-action@6d58852c35a27e6034745c5d0bc373d739014f7f # v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
--- a/.github/workflows/release_nightly.yml
+++ b/.github/workflows/release_nightly.yml
@@ -140,7 +140,7 @@ jobs:
    name: Create a Linux *.tar.gz bundle for ARM
    if: github.repository_owner == 'zed-industries'
    runs-on:
-      - hosted-linux-arm-1
+      - buildjet-16vcpu-ubuntu-2204-arm
    needs: tests
    env:
      DIGITALOCEAN_SPACES_ACCESS_KEY: ${{ secrets.DIGITALOCEAN_SPACES_ACCESS_KEY }}
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -141,6 +141,8 @@ members = [
    "crates/worktree",
    "crates/zed",
    "crates/zed_actions",
+    "crates/zeta",
+    "crates/git_ui",

    #
    # Extensions
@@ -226,6 +228,7 @@ fs = { path = "crates/fs" }
 fsevent = { path = "crates/fsevent" }
 fuzzy = { path = "crates/fuzzy" }
 git = { path = "crates/git" }
+git_ui = { path = "crates/git_ui" }
 git_hosting_providers = { path = "crates/git_hosting_providers" }
 go_to_line = { path = "crates/go_to_line" }
 google_ai = { path = "crates/google_ai" }
@@ -325,6 +328,7 @@ workspace = { path = "crates/workspace" }
 worktree = { path = "crates/worktree" }
 zed = { path = "crates/zed" }
 zed_actions = { path = "crates/zed_actions" }
+zeta = { path = "crates/zeta" }

 #
 # External crates
@@ -358,7 +362,6 @@ cargo_metadata = "0.19"
 cargo_toml = "0.20"
 chrono = { version = "0.4", features = ["serde"] }
 clap = { version = "4.4", features = ["derive"] }
-clickhouse = "0.11.6"
 cocoa = "0.26"
 cocoa-foundation = "0.2.0"
 convert_case = "0.6.0"
@@ -441,7 +444,6 @@ rustc-demangle = "0.1.23"
 rust-embed = { version = "8.4", features = ["include-exclude"] }
 rustls = "0.21.12"
 rustls-native-certs = "0.8.0"
-scap = { version = "0.0.7" }
 schemars = { version = "0.8", features = ["impl_json_schema"] }
 semver = "1.0"
 serde = { version = "1.0", features = ["derive", "rc"] }
@@ -507,7 +509,7 @@ unindent = "0.1.7"
 unicode-segmentation = "1.10"
 unicode-script = "0.5.7"
 url = "2.2"
-uuid = { version = "1.1.2", features = ["v4", "v5", "serde"] }
+uuid = { version = "1.1.2", features = ["v4", "v5", "v7", "serde"] }
 wasmparser = "0.215"
 wasm-encoder = "0.215"
 wasmtime = { version = "24", default-features = false, features = [
@@ -682,6 +684,7 @@ new_ret_no_self = { level = "allow" }
 # We have a few `next` functions that differ in lifetimes
 # compared to Iterator::next. Yet, clippy complains about those.
 should_implement_trait = { level = "allow" }
+let_underscore_future = "allow"

 [workspace.metadata.cargo-machete]
 ignored = ["bindgen", "cbindgen", "prost_build", "serde"]
--- a/assets/icons/eraser.svg
+++ b/assets/icons/eraser.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-eraser">
+    <path d="m7 21-4.3-4.3c-1-1-1-2.5 0-3.4l9.6-9.6c1-1 2.5-1 3.4 0l5.6 5.6c1 1 1 2.5 0 3.4L13 21"/>
+    <path d="M22 21H7"/><path d="m5 11 9 9"/>
+</svg>
--- a/assets/icons/file_diff.svg
+++ b/assets/icons/file_diff.svg
@@ -0,0 +1 @@
+<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-file-diff"><path d="M15 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7Z"/><path d="M9 10h6"/><path d="M12 13V7"/><path d="M9 17h6"/></svg>
--- a/assets/icons/file_icons/file_types.json
+++ b/assets/icons/file_icons/file_types.json
@@ -59,6 +59,11 @@
    "gitignore": "vcs",
    "gitkeep": "vcs",
    "gitmodules": "vcs",
+    "TAG_EDITMSG": "vcs",
+    "MERGE_MSG": "vcs",
+    "COMMIT_EDITMSG": "vcs",
+    "NOTES_EDITMSG": "vcs",
+    "EDIT_DESCRIPTION": "vcs",
    "gleam": "gleam",
    "go": "go",
    "gql": "graphql",
@@ -108,6 +113,7 @@
    "mdf": "storage",
    "mdx": "document",
    "metadata": "code",
+    "metal": "metal",
    "mjs": "javascript",
    "mka": "audio",
    "mkv": "video",
@@ -317,6 +323,9 @@
    "lua": {
      "icon": "icons/file_icons/lua.svg"
    },
+    "metal": {
+      "icon": "icons/file_icons/metal.svg"
+    },
    "nim": {
      "icon": "icons/file_icons/nim.svg"
    },
--- a/assets/icons/file_icons/metal.svg
+++ b/assets/icons/file_icons/metal.svg
@@ -0,0 +1 @@
+<svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M4.56 4.502 3.25 3.027V11.5h1.5V6.973l2.69 3.025 1.31 1.475V7.918l3.306 3.582h2.042L8.55 5.491 7.25 4.081V7.528L4.56 4.502Z" fill="#000"/></svg>
--- a/assets/icons/git_branch.svg
+++ b/assets/icons/git_branch.svg
@@ -0,0 +1 @@
+<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-git-branch"><line x1="6" x2="6" y1="3" y2="15"/><circle cx="18" cy="6" r="3"/><circle cx="6" cy="18" r="3"/><path d="M18 9a9 9 0 0 1-9 9"/></svg>
--- a/assets/icons/info.svg
+++ b/assets/icons/info.svg
@@ -0,0 +1,12 @@
+<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_2131_1193)">
+<circle cx="7" cy="7" r="6" stroke="black" stroke-width="1.5"/>
+<path d="M6 10H7M8 10H7M7 10V7.1C7 7.04477 6.95523 7 6.9 7H6" stroke="black" stroke-width="1.5" stroke-linecap="round"/>
+<circle cx="7" cy="4.5" r="1" fill="black"/>
+</g>
+<defs>
+<clipPath id="clip0_2131_1193">
+<rect width="14" height="14" fill="white"/>
+</clipPath>
+</defs>
+</svg>
--- a/assets/icons/panel_left.svg
+++ b/assets/icons/panel_left.svg
@@ -0,0 +1 @@
+<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-panel-left"><rect width="18" height="18" x="3" y="3" rx="2"/><path d="M9 3v18"/></svg>
--- a/assets/icons/panel_right.svg
+++ b/assets/icons/panel_right.svg
@@ -0,0 +1 @@
+<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-panel-right"><rect width="18" height="18" x="3" y="3" rx="2"/><path d="M15 3v18"/></svg>
--- a/assets/icons/square_dot.svg
+++ b/assets/icons/square_dot.svg
@@ -0,0 +1 @@
+<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-square-dot"><rect width="18" height="18" x="3" y="3" rx="2"/><circle cx="12" cy="12" r="1"/></svg>
--- a/assets/icons/square_minus.svg
+++ b/assets/icons/square_minus.svg
@@ -0,0 +1 @@
+<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-square-minus"><rect width="18" height="18" x="3" y="3" rx="2"/><path d="M8 12h8"/></svg>
--- a/assets/icons/square_plus.svg
+++ b/assets/icons/square_plus.svg
@@ -0,0 +1 @@
+<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-square-plus"><rect width="18" height="18" x="3" y="3" rx="2"/><path d="M8 12h8"/><path d="M12 8v8"/></svg>
--- a/assets/icons/thumbs_down.svg
+++ b/assets/icons/thumbs_down.svg
@@ -0,0 +1 @@
+<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-thumbs-down"><path d="M17 14V2"/><path d="M9 18.12 10 14H4.17a2 2 0 0 1-1.92-2.56l2.33-8A2 2 0 0 1 6.5 2H20a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2h-2.76a2 2 0 0 0-1.79 1.11L12 22a3.13 3.13 0 0 1-3-3.88Z"/></svg>
--- a/assets/icons/thumbs_up.svg
+++ b/assets/icons/thumbs_up.svg
@@ -0,0 +1 @@
+<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-thumbs-up"><path d="M7 10v12"/><path d="M15 5.88 14 10h5.83a2 2 0 0 1 1.92 2.56l-2.33 8A2 2 0 0 1 17.5 22H4a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h2.76a2 2 0 0 0 1.79-1.11L12 2a3.13 3.13 0 0 1 3 3.88Z"/></svg>
--- a/assets/icons/triangle.svg
+++ b/assets/icons/triangle.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 4L4 12H12L8 4Z" fill="currentColor"/>
+<svg width="17" height="16" viewBox="0 0 17 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M8.5 3L3 12H14L8.5 3Z" fill="black"/>
 </svg>
--- a/assets/icons/x.svg
+++ b/assets/icons/x.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="M4 4L12 12M12 4L4 12" stroke="currentColor" stroke-width="2"/>
+<svg width="17" height="16" viewBox="0 0 17 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M5 4.5L12 11.5M12 4.5L5 11.5" stroke="black" stroke-width="2" stroke-linecap="round"/>
 </svg>
--- a/assets/icons/zed_predict.svg
+++ b/assets/icons/zed_predict.svg
@@ -0,0 +1,4 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M8 8.9V11C5.93097 11 5.06903 11 3 11V10.4L8 5.6V5H3V7.1" stroke="black" stroke-width="1.5"/>
+<path d="M11 5L13 8L11 11" stroke="black" stroke-width="1.5"/>
+</svg>
--- a/assets/keymaps/default-linux.json
+++ b/assets/keymaps/default-linux.json
@@ -108,7 +108,9 @@
      "ctrl-'": "editor::ToggleHunkDiff",
      "ctrl-\"": "editor::ExpandAllHunkDiffs",
      "ctrl-i": "editor::ShowSignatureHelp",
-      "alt-g b": "editor::ToggleGitBlame"
+      "alt-g b": "editor::ToggleGitBlame",
+      "menu": "editor::OpenContextMenu",
+      "shift-f10": "editor::OpenContextMenu"
    }
  },
  {
@@ -466,13 +468,21 @@
  },
  {
    "context": "Editor && showing_completions",
+    "use_key_equivalents": true,
+    "bindings": {
+      "enter": "editor::ConfirmCompletion"
+    }
+  },
+  {
+    "context": "Editor && !inline_completion && showing_completions",
+    "use_key_equivalents": true,
    "bindings": {
-      "enter": "editor::ConfirmCompletion",
      "tab": "editor::ComposeCompletion"
    }
  },
  {
-    "context": "Editor && inline_completion && !showing_completions",
+    "context": "Editor && inline_completion",
+    "use_key_equivalents": true,
    "bindings": {
      "tab": "editor::AcceptInlineCompletion"
    }
--- a/assets/keymaps/default-macos.json
+++ b/assets/keymaps/default-macos.json
@@ -1,6 +1,7 @@
 [
  // Standard macOS bindings
  {
+    "use_key_equivalents": true,
    "bindings": {
      "up": "menu::SelectPrev",
      "shift-tab": "menu::SelectPrev",
@@ -40,6 +41,7 @@
  },
  {
    "context": "Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "editor::Cancel",
      "backspace": "editor::Backspace",
@@ -64,6 +66,7 @@
      "cmd-v": "editor::Paste",
      "cmd-z": "editor::Undo",
      "cmd-shift-z": "editor::Redo",
+      "ctrl-shift-z": "zeta::RateCompletions",
      "up": "editor::MoveUp",
      "ctrl-up": "editor::MoveToStartOfParagraph",
      "pageup": "editor::MovePageUp",
@@ -131,6 +134,7 @@
  },
  {
    "context": "Editor && mode == full",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "editor::Newline",
      "shift-enter": "editor::Newline",
@@ -148,20 +152,23 @@
  },
  {
    "context": "Editor && mode == full && inline_completion",
+    "use_key_equivalents": true,
    "bindings": {
-      "alt-]": "editor::NextInlineCompletion",
-      "alt-[": "editor::PreviousInlineCompletion",
+      "alt-tab": "editor::NextInlineCompletion",
+      "alt-shift-tab": "editor::PreviousInlineCompletion",
      "ctrl-right": "editor::AcceptPartialInlineCompletion"
    }
  },
  {
    "context": "Editor && !inline_completion",
+    "use_key_equivalents": true,
    "bindings": {
-      "alt-\\": "editor::ShowInlineCompletion"
+      "alt-tab": "editor::ShowInlineCompletion"
    }
  },
  {
    "context": "Editor && mode == auto_height",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-enter": "editor::Newline",
      "shift-enter": "editor::Newline",
@@ -170,12 +177,14 @@
  },
  {
    "context": "Markdown",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-c": "markdown::Copy"
    }
  },
  {
    "context": "Editor && jupyter && !ContextEditor",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-shift-enter": "repl::Run",
      "ctrl-alt-enter": "repl::RunInPlace"
@@ -183,6 +192,7 @@
  },
  {
    "context": "AssistantPanel",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-k c": "assistant::CopyCode",
      "cmd-g": "search::SelectNextMatch",
@@ -195,6 +205,7 @@
  },
  {
    "context": "ContextEditor > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-enter": "assistant::Assist",
      "cmd-shift-enter": "assistant::Edit",
@@ -209,6 +220,7 @@
  },
  {
    "context": "AssistantPanel2",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-n": "assistant2::NewThread",
      "cmd-shift-h": "assistant2::OpenHistory"
@@ -216,12 +228,14 @@
  },
  {
    "context": "MessageEditor > Editor",
+    "use_key_equivalents": true,
    "bindings": {
-      "cmd-enter": "assistant2::Chat"
+      "enter": "assistant2::Chat"
    }
  },
  {
    "context": "PromptLibrary",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-n": "prompt_library::NewPrompt",
      "cmd-shift-s": "prompt_library::ToggleDefaultPrompt",
@@ -230,6 +244,7 @@
  },
  {
    "context": "BufferSearchBar",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "buffer_search::Dismiss",
      "tab": "buffer_search::FocusEditor",
@@ -243,6 +258,7 @@
  },
  {
    "context": "BufferSearchBar && in_replace > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "search::ReplaceNext",
      "cmd-enter": "search::ReplaceAll"
@@ -250,6 +266,7 @@
  },
  {
    "context": "BufferSearchBar && !in_replace > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "up": "search::PreviousHistoryQuery",
      "down": "search::NextHistoryQuery"
@@ -257,6 +274,7 @@
  },
  {
    "context": "ProjectSearchBar",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "project_search::ToggleFocus",
      "cmd-shift-j": "project_search::ToggleFilters",
@@ -268,6 +286,7 @@
  },
  {
    "context": "ProjectSearchBar > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "up": "search::PreviousHistoryQuery",
      "down": "search::NextHistoryQuery"
@@ -275,6 +294,7 @@
  },
  {
    "context": "ProjectSearchBar && in_replace > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "search::ReplaceNext",
      "cmd-enter": "search::ReplaceAll"
@@ -282,6 +302,7 @@
  },
  {
    "context": "ProjectSearchView",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "project_search::ToggleFocus",
      "cmd-shift-j": "project_search::ToggleFilters",
@@ -292,6 +313,7 @@
  },
  {
    "context": "Pane",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-{": "pane::ActivatePrevItem",
      "cmd-}": "pane::ActivateNextItem",
@@ -320,6 +342,7 @@
  // Bindings from VS Code
  {
    "context": "Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-[": "editor::Outdent",
      "cmd-]": "editor::Indent",
@@ -383,6 +406,7 @@
  },
  {
    "context": "Editor && mode == full",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-shift-o": "outline::Toggle",
      "ctrl-g": "go_to_line::Toggle"
@@ -390,6 +414,7 @@
  },
  {
    "context": "Pane",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-1": ["pane::ActivateItem", 0],
      "ctrl-2": ["pane::ActivateItem", 1],
@@ -409,6 +434,7 @@
  },
  {
    "context": "Workspace",
+    "use_key_equivalents": true,
    "bindings": {
      // Change the default action on `menu::Confirm` by setting the parameter
      // "alt-cmd-o": ["projects::OpenRecent", {"create_new_window": true }],
@@ -464,6 +490,7 @@
  },
  {
    "context": "Workspace && !Terminal",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-shift-r": "task::Spawn",
      "cmd-alt-r": "task::Rerun",
@@ -474,6 +501,7 @@
  // Bindings from Sublime Text
  {
    "context": "Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-j": "editor::JoinLines",
      "ctrl-alt-backspace": "editor::DeleteToPreviousSubwordStart",
@@ -493,6 +521,7 @@
  // Bindings from Atom
  {
    "context": "Pane",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-k up": "pane::SplitUp",
      "cmd-k down": "pane::SplitDown",
@@ -503,31 +532,42 @@
  // Bindings that should be unified with bindings for more general actions
  {
    "context": "Editor && renaming",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "editor::ConfirmRename"
    }
  },
  {
    "context": "Editor && showing_completions",
+    "use_key_equivalents": true,
+    "bindings": {
+      "enter": "editor::ConfirmCompletion"
+    }
+  },
+  {
+    "context": "Editor && !inline_completion && showing_completions",
+    "use_key_equivalents": true,
    "bindings": {
-      "enter": "editor::ConfirmCompletion",
      "tab": "editor::ComposeCompletion"
    }
  },
  {
-    "context": "Editor && inline_completion && !showing_completions",
+    "context": "Editor && inline_completion",
+    "use_key_equivalents": true,
    "bindings": {
      "tab": "editor::AcceptInlineCompletion"
    }
  },
  {
    "context": "Editor && showing_code_actions",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "editor::ConfirmCodeAction"
    }
  },
  {
    "context": "Editor && (showing_code_actions || showing_completions)",
+    "use_key_equivalents": true,
    "bindings": {
      "up": "editor::ContextMenuPrev",
      "ctrl-p": "editor::ContextMenuPrev",
@@ -539,6 +579,7 @@
  },
  // Custom bindings
  {
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-alt-cmd-f": "workspace::FollowNextCollaborator",
      // TODO: Move this to a dock open action
@@ -549,6 +590,7 @@
  },
  {
    "context": "Editor && mode == full",
+    "use_key_equivalents": true,
    "bindings": {
      "alt-enter": "editor::OpenExcerpts",
      "shift-enter": "editor::ExpandExcerpts",
@@ -560,6 +602,7 @@
  },
  {
    "context": "ProposedChangesEditor",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-shift-y": "editor::ApplyDiffHunk",
      "cmd-shift-a": "editor::ApplyAllDiffHunks"
@@ -567,6 +610,7 @@
  },
  {
    "context": "PromptEditor",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-[": "assistant::CyclePreviousInlineAssist",
      "ctrl-]": "assistant::CycleNextInlineAssist"
@@ -574,12 +618,14 @@
  },
  {
    "context": "ProjectSearchBar && !in_replace",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-enter": "project_search::SearchInNew"
    }
  },
  {
    "context": "OutlinePanel && not_editing",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "menu::Cancel",
      "left": "outline_panel::CollapseSelectedEntry",
@@ -596,6 +642,7 @@
  },
  {
    "context": "ProjectPanel",
+    "use_key_equivalents": true,
    "bindings": {
      "left": "project_panel::CollapseSelectedEntry",
      "right": "project_panel::ExpandSelectedEntry",
@@ -625,12 +672,14 @@
  },
  {
    "context": "ProjectPanel && not_editing",
+    "use_key_equivalents": true,
    "bindings": {
      "space": "project_panel::Open"
    }
  },
  {
    "context": "CollabPanel && not_editing",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-backspace": "collab_panel::Remove",
      "space": "menu::Confirm"
@@ -638,18 +687,21 @@
  },
  {
    "context": "(CollabPanel && editing) > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "space": "collab_panel::InsertSpace"
    }
  },
  {
    "context": "ChannelModal",
+    "use_key_equivalents": true,
    "bindings": {
      "tab": "channel_modal::ToggleMode"
    }
  },
  {
    "context": "Picker > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "tab": "picker::ConfirmCompletion",
      "alt-enter": ["picker::ConfirmInput", { "secondary": false }],
@@ -658,18 +710,21 @@
  },
  {
    "context": "ChannelModal > Picker > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "tab": "channel_modal::ToggleMode"
    }
  },
  {
    "context": "FileFinder",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd": "file_finder::ToggleMenu"
    }
  },
  {
    "context": "FileFinder && !menu_open",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-shift-p": "file_finder::SelectPrev",
      "cmd-j": "pane::SplitDown",
@@ -680,6 +735,7 @@
  },
  {
    "context": "FileFinder && menu_open",
+    "use_key_equivalents": true,
    "bindings": {
      "j": "pane::SplitDown",
      "k": "pane::SplitUp",
@@ -689,6 +745,7 @@
  },
  {
    "context": "TabSwitcher",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-up": "menu::SelectPrev",
      "ctrl-down": "menu::SelectNext",
@@ -698,6 +755,7 @@
  },
  {
    "context": "Terminal",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-cmd-space": "terminal::ShowCharacterPalette",
      "cmd-c": "terminal::Copy",
@@ -737,5 +795,24 @@
      "ctrl-k left": "pane::SplitLeft",
      "ctrl-k right": "pane::SplitRight"
    }
+  },
+  {
+    "context": "RateCompletionModal",
+    "use_key_equivalents": true,
+    "bindings": {
+      "cmd-enter": "zeta::ThumbsUp",
+      "shift-down": "zeta::NextEdit",
+      "shift-up": "zeta::PreviousEdit",
+      "right": "zeta::PreviewCompletion"
+    }
+  },
+  {
+    "context": "RateCompletionModal > Editor",
+    "use_key_equivalents": true,
+    "bindings": {
+      "escape": "zeta::FocusCompletions",
+      "cmd-shift-enter": "zeta::ThumbsUpActiveCompletion",
+      "cmd-shift-backspace": "zeta::ThumbsDownActiveCompletion"
+    }
  }
 ]
--- a/assets/keymaps/linux/emacs.json
+++ b/assets/keymaps/linux/emacs.json
@@ -15,8 +15,10 @@
      "ctrl-b": "editor::MoveLeft",
      "ctrl-n": "editor::MoveDown",
      "ctrl-p": "editor::MoveUp",
-      "ctrl-a": "editor::MoveToBeginningOfLine",
-      "ctrl-e": "editor::MoveToEndOfLine",
+      "home": ["editor::MoveToBeginningOfLine", { "stop_at_soft_wraps": false }],
+      "end": ["editor::MoveToEndOfLine", { "stop_at_soft_wraps": false }],
+      "ctrl-a": ["editor::MoveToBeginningOfLine", { "stop_at_soft_wraps": false }],
+      "ctrl-e": ["editor::MoveToEndOfLine", { "stop_at_soft_wraps": false }],
      "alt-f": "editor::MoveToNextSubwordEnd",
      "alt-b": "editor::MoveToPreviousSubwordStart",
      "ctrl-d": "editor::Delete",
@@ -53,6 +55,14 @@
      "shift shift": "file_finder::Toggle"
    }
  },
+  {
+    "context": "BufferSearchBar > Editor",
+    "bindings": {
+      "ctrl-s": "search::SelectNextMatch",
+      "ctrl-r": "search::SelectPrevMatch",
+      "ctrl-g": "buffer_search::Dismiss"
+    }
+  },
  {
    "context": "Pane",
    "bindings": {
--- a/assets/keymaps/linux/jetbrains.json
+++ b/assets/keymaps/linux/jetbrains.json
@@ -12,7 +12,7 @@
      "ctrl->": "zed::IncreaseBufferFontSize",
      "ctrl-<": "zed::DecreaseBufferFontSize",
      "ctrl-shift-j": "editor::JoinLines",
-      "ctrl-d": "editor::DuplicateLineDown",
+      "ctrl-d": "editor::DuplicateSelection",
      "ctrl-y": "editor::DeleteLine",
      "ctrl-m": "editor::ScrollCursorCenter",
      "ctrl-pagedown": "editor::MovePageDown",
--- a/assets/keymaps/linux/sublime_text.json
+++ b/assets/keymaps/linux/sublime_text.json
@@ -15,7 +15,7 @@
      "ctrl-shift-m": "editor::SelectLargerSyntaxNode",
      "ctrl-shift-l": "editor::SplitSelectionIntoLines",
      "ctrl-shift-a": "editor::SelectLargerSyntaxNode",
-      "ctrl-shift-d": "editor::DuplicateLineDown",
+      "ctrl-shift-d": "editor::DuplicateSelection",
      "alt-f3": "editor::SelectAllMatches", // find_all_under
      "f12": "editor::GoToDefinition",
      "ctrl-f12": "editor::GoToDefinitionSplit",
--- a/assets/keymaps/macos/emacs.json
+++ b/assets/keymaps/macos/emacs.json
@@ -15,8 +15,10 @@
      "ctrl-b": "editor::MoveLeft",
      "ctrl-n": "editor::MoveDown",
      "ctrl-p": "editor::MoveUp",
-      "ctrl-a": "editor::MoveToBeginningOfLine",
-      "ctrl-e": "editor::MoveToEndOfLine",
+      "home": ["editor::MoveToBeginningOfLine", { "stop_at_soft_wraps": false }],
+      "end": ["editor::MoveToEndOfLine", { "stop_at_soft_wraps": false }],
+      "ctrl-a": ["editor::MoveToBeginningOfLine", { "stop_at_soft_wraps": false }],
+      "ctrl-e": ["editor::MoveToEndOfLine", { "stop_at_soft_wraps": false }],
      "alt-f": "editor::MoveToNextSubwordEnd",
      "alt-b": "editor::MoveToPreviousSubwordStart",
      "ctrl-d": "editor::Delete",
@@ -53,6 +55,14 @@
      "shift shift": "file_finder::Toggle"
    }
  },
+  {
+    "context": "BufferSearchBar > Editor",
+    "bindings": {
+      "ctrl-s": "search::SelectNextMatch",
+      "ctrl-r": "search::SelectPrevMatch",
+      "ctrl-g": "buffer_search::Dismiss"
+    }
+  },
  {
    "context": "Pane",
    "bindings": {
--- a/assets/keymaps/macos/jetbrains.json
+++ b/assets/keymaps/macos/jetbrains.json
@@ -11,7 +11,7 @@
      "ctrl->": "zed::IncreaseBufferFontSize",
      "ctrl-<": "zed::DecreaseBufferFontSize",
      "ctrl-shift-j": "editor::JoinLines",
-      "cmd-d": "editor::DuplicateLineDown",
+      "cmd-d": "editor::DuplicateSelection",
      "cmd-backspace": "editor::DeleteLine",
      "cmd-pagedown": "editor::MovePageDown",
      "cmd-pageup": "editor::MovePageUp",
--- a/assets/keymaps/macos/sublime_text.json
+++ b/assets/keymaps/macos/sublime_text.json
@@ -18,7 +18,7 @@
      "ctrl-shift-m": "editor::SelectLargerSyntaxNode",
      "cmd-shift-l": "editor::SplitSelectionIntoLines",
      "cmd-shift-a": "editor::SelectLargerSyntaxNode",
-      "cmd-shift-d": "editor::DuplicateLineDown",
+      "cmd-shift-d": "editor::DuplicateSelection",
      "ctrl-cmd-g": "editor::SelectAllMatches", // find_all_under
      "shift-f12": "editor::FindAllReferences",
      "alt-cmd-down": "editor::GoToDefinition",
--- a/assets/keymaps/vim.json
+++ b/assets/keymaps/vim.json
@@ -1,7 +1,6 @@
 [
  {
    "context": "VimControl && !menu",
-    "use_layout_keys": true,
    "bindings": {
      "i": ["vim::PushOperator", { "Object": { "around": false } }],
      "a": ["vim::PushOperator", { "Object": { "around": true } }],
@@ -188,7 +187,6 @@
  },
  {
    "context": "vim_mode == normal",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "editor::Cancel",
      "ctrl-[": "editor::Cancel",
@@ -243,7 +241,6 @@
  },
  {
    "context": "VimControl && VimCount",
-    "use_layout_keys": true,
    "bindings": {
      "0": ["vim::Number", 0],
      ":": "vim::CountCommand"
@@ -251,7 +248,6 @@
  },
  {
    "context": "vim_mode == visual",
-    "use_layout_keys": true,
    "bindings": {
      ":": "vim::VisualCommand",
      "u": "vim::ConvertToLowerCase",
@@ -301,7 +297,6 @@
  },
  {
    "context": "vim_mode == insert",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "vim::NormalBefore",
      "ctrl-c": "vim::NormalBefore",
@@ -331,6 +326,7 @@
    "bindings": {
      "i": "vim::InsertBefore",
      "a": "vim::InsertAfter",
+      "d": "vim::HelixDelete",
      "w": "vim::NextWordStart",
      "e": "vim::NextWordEnd",
      "b": "vim::PreviousWordStart",
@@ -344,7 +340,6 @@

  {
    "context": "vim_mode == insert && !(showing_code_actions || showing_completions)",
-    "use_layout_keys": true,
    "bindings": {
      "ctrl-p": "editor::ShowCompletions",
      "ctrl-n": "editor::ShowCompletions"
@@ -352,7 +347,6 @@
  },
  {
    "context": "vim_mode == replace",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "vim::NormalBefore",
      "ctrl-c": "vim::NormalBefore",
@@ -370,7 +364,6 @@
  },
  {
    "context": "vim_mode == waiting",
-    "use_layout_keys": true,
    "bindings": {
      "tab": "vim::Tab",
      "enter": "vim::Enter",
@@ -384,7 +377,6 @@
  },
  {
    "context": "vim_mode == operator",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "vim::ClearOperators",
      "ctrl-c": "vim::ClearOperators",
@@ -394,7 +386,6 @@
  },
  {
    "context": "vim_operator == a || vim_operator == i || vim_operator == cs",
-    "use_layout_keys": true,
    "bindings": {
      "w": "vim::Word",
      "shift-w": ["vim::Word", { "ignorePunctuation": true }],
@@ -425,7 +416,6 @@
  },
  {
    "context": "vim_operator == c",
-    "use_layout_keys": true,
    "bindings": {
      "c": "vim::CurrentLine",
      "d": "editor::Rename", // zed specific
@@ -434,7 +424,6 @@
  },
  {
    "context": "vim_operator == d",
-    "use_layout_keys": true,
    "bindings": {
      "d": "vim::CurrentLine",
      "s": ["vim::PushOperator", "DeleteSurrounds"],
@@ -444,7 +433,6 @@
  },
  {
    "context": "vim_operator == gu",
-    "use_layout_keys": true,
    "bindings": {
      "g u": "vim::CurrentLine",
      "u": "vim::CurrentLine"
@@ -452,7 +440,6 @@
  },
  {
    "context": "vim_operator == gU",
-    "use_layout_keys": true,
    "bindings": {
      "g shift-u": "vim::CurrentLine",
      "shift-u": "vim::CurrentLine"
@@ -460,7 +447,6 @@
  },
  {
    "context": "vim_operator == g~",
-    "use_layout_keys": true,
    "bindings": {
      "g ~": "vim::CurrentLine",
      "~": "vim::CurrentLine"
@@ -468,7 +454,6 @@
  },
  {
    "context": "vim_operator == gq",
-    "use_layout_keys": true,
    "bindings": {
      "g q": "vim::CurrentLine",
      "q": "vim::CurrentLine",
@@ -478,7 +463,6 @@
  },
  {
    "context": "vim_operator == y",
-    "use_layout_keys": true,
    "bindings": {
      "y": "vim::CurrentLine",
      "s": ["vim::PushOperator", { "AddSurrounds": {} }]
@@ -486,42 +470,36 @@
  },
  {
    "context": "vim_operator == ys",
-    "use_layout_keys": true,
    "bindings": {
      "s": "vim::CurrentLine"
    }
  },
  {
    "context": "vim_operator == >",
-    "use_layout_keys": true,
    "bindings": {
      ">": "vim::CurrentLine"
    }
  },
  {
    "context": "vim_operator == <",
-    "use_layout_keys": true,
    "bindings": {
      "<": "vim::CurrentLine"
    }
  },
  {
    "context": "vim_operator == eq",
-    "use_layout_keys": true,
    "bindings": {
      "=": "vim::CurrentLine"
    }
  },
  {
    "context": "vim_operator == gc",
-    "use_layout_keys": true,
    "bindings": {
      "c": "vim::CurrentLine"
    }
  },
  {
    "context": "vim_mode == literal",
-    "use_layout_keys": true,
    "bindings": {
      "ctrl-@": ["vim::Literal", ["ctrl-@", "\u0000"]],
      "ctrl-a": ["vim::Literal", ["ctrl-a", "\u0001"]],
@@ -565,7 +543,6 @@
  },
  {
    "context": "BufferSearchBar && !in_replace",
-    "use_layout_keys": true,
    "bindings": {
      "enter": "vim::SearchSubmit",
      "escape": "buffer_search::Dismiss"
@@ -573,7 +550,6 @@
  },
  {
    "context": "ProjectPanel || CollabPanel || OutlinePanel || ChatPanel || VimControl || EmptyPane || SharedScreen || MarkdownPreview || KeyContextView",
-    "use_layout_keys": true,
    "bindings": {
      // window related commands (ctrl-w X)
      "ctrl-w": null,
@@ -630,7 +606,6 @@
  },
  {
    "context": "EmptyPane || SharedScreen || MarkdownPreview || KeyContextView || Welcome",
-    "use_layout_keys": true,
    "bindings": {
      ":": "command_palette::Toggle",
      "g /": "pane::DeploySearch"
@@ -639,7 +614,6 @@
  {
    // netrw compatibility
    "context": "ProjectPanel && not_editing",
-    "use_layout_keys": true,
    "bindings": {
      ":": "command_palette::Toggle",
      "%": "project_panel::NewFile",
@@ -659,6 +633,12 @@
      "p": "project_panel::Open",
      "x": "project_panel::RevealInFileManager",
      "s": "project_panel::OpenWithSystem",
+      "] c": "project_panel::SelectNextGitEntry",
+      "[ c": "project_panel::SelectPrevGitEntry",
+      "] d": "project_panel::SelectNextDiagnostic",
+      "[ d": "project_panel::SelectPrevDiagnostic",
+      "}": "project_panel::SelectNextDirectory",
+      "{": "project_panel::SelectPrevDirectory",
      "shift-g": "menu::SelectLast",
      "g g": "menu::SelectFirst",
      "-": "project_panel::SelectParent",
@@ -667,7 +647,6 @@
  },
  {
    "context": "OutlinePanel && not_editing",
-    "use_layout_keys": true,
    "bindings": {
      "j": "menu::SelectNext",
      "k": "menu::SelectPrev",
--- a/assets/settings/default.json
+++ b/assets/settings/default.json
@@ -144,15 +144,15 @@
  // 4. Highlight the full line (default):
  //    "all"
  "current_line_highlight": "all",
+  // The debounce delay before querying highlights from the language
+  // server based on the current cursor location.
+  "lsp_highlight_debounce": 75,
  // Whether to pop the completions menu while typing in an editor without
  // explicitly requesting it.
  "show_completions_on_input": true,
  // Whether to display inline and alongside documentation for items in the
  // completions menu
  "show_completion_documentation": true,
-  // The debounce delay before re-querying the language server for completion
-  // documentation when not included in original completion list.
-  "completion_documentation_secondary_query_debounce": 300,
  // Show method signatures in the editor, when inside parentheses.
  "auto_signature_help": false,
  /// Whether to show the signature help after completion or a bracket pair inserted.
@@ -474,6 +474,14 @@
    // Default width of the chat panel.
    "default_width": 240
  },
+  "git_panel": {
+    // Whether to show the git panel button in the status bar.
+    "button": true,
+    // Where to the git panel. Can be 'left' or 'right'.
+    "dock": "left",
+    // Default width of the git panel.
+    "default_width": 360
+  },
  "message_editor": {
    // Whether to automatically replace emoji shortcodes with emoji characters.
    // For example: typing `:wave:` gets replaced with `👋`.
@@ -564,10 +572,23 @@
    // What to do after closing the current tab.
    //
    // 1. Activate the tab that was open previously (default)
-    //     "History"
-    // 2. Activate the neighbour tab (prefers the right one, if present)
-    //     "Neighbour"
-    "activate_on_close": "history"
+    //     "history"
+    // 2. Activate the right neighbour tab if present
+    //     "neighbour"
+    // 3. Activate the left neighbour tab if present
+    //     "left_neighbour"
+    "activate_on_close": "history",
+    /// Which files containing diagnostic errors/warnings to mark in the tabs.
+    /// Diagnostics are only shown when file icons are also active.
+    /// This setting only works when can take the following three values:
+    ///
+    /// 1. Do not mark any files:
+    ///    "off"
+    /// 2. Only mark files with errors:
+    ///    "errors"
+    /// 3. Mark files with errors and warnings:
+    ///    "all"
+    "show_diagnostics": "off"
  },
  // Settings related to preview tabs.
  "preview_tabs": {
@@ -674,6 +695,7 @@
    "**/.git",
    "**/.svn",
    "**/.hg",
+    "**/.jj",
    "**/CVS",
    "**/.DS_Store",
    "**/Thumbs.db",
--- a/assets/themes/andromeda/andromeda.json
+++ b/assets/themes/andromeda/andromeda.json
@@ -46,7 +46,7 @@
        "tab.active_background": "#1e2025ff",
        "search.match_background": "#11a79366",
        "panel.background": "#21242bff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#10a793ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#f7f7f84c",
        "scrollbar.thumb.hover_background": "#252931ff",
--- a/assets/themes/atelier/atelier.json
+++ b/assets/themes/atelier/atelier.json
@@ -46,7 +46,7 @@
        "tab.active_background": "#19171cff",
        "search.match_background": "#576dda66",
        "panel.background": "#221f26ff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#566ddaff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#efecf44c",
        "scrollbar.thumb.hover_background": "#332f38ff",
@@ -431,7 +431,7 @@
        "tab.active_background": "#efecf4ff",
        "search.match_background": "#586dda66",
        "panel.background": "#e6e3ebff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#586cdaff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#19171c4c",
        "scrollbar.thumb.hover_background": "#cbc8d1ff",
--- a/assets/themes/ayu/ayu.json
+++ b/assets/themes/ayu/ayu.json
@@ -46,7 +46,7 @@
        "tab.active_background": "#0d1016ff",
        "search.match_background": "#5ac2fe66",
        "panel.background": "#1f2127ff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#5ac1feff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#bfbdb64c",
        "scrollbar.thumb.hover_background": "#2d2f34ff",
@@ -416,7 +416,7 @@
        "tab.active_background": "#fcfcfcff",
        "search.match_background": "#3b9ee566",
        "panel.background": "#ececedff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#3b9ee5ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#5c61664c",
        "scrollbar.thumb.hover_background": "#dfe0e1ff",
--- a/assets/themes/gruvbox/gruvbox.json
+++ b/assets/themes/gruvbox/gruvbox.json
@@ -55,7 +55,7 @@
        "tab.active_background": "#282828ff",
        "search.match_background": "#83a59866",
        "panel.background": "#3a3735ff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#83a598ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#fbf1c74c",
        "scrollbar.thumb.hover_background": "#494340ff",
@@ -439,7 +439,7 @@
        "tab.active_background": "#1d2021ff",
        "search.match_background": "#83a59866",
        "panel.background": "#393634ff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#83a598ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#fbf1c74c",
        "scrollbar.thumb.hover_background": "#494340ff",
--- a/assets/themes/rose_pine/rose_pine.json
+++ b/assets/themes/rose_pine/rose_pine.json
@@ -46,7 +46,7 @@
        "tab.active_background": "#191724ff",
        "search.match_background": "#57949f66",
        "panel.background": "#1c1b2aff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#9bced6ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#e0def44c",
        "scrollbar.thumb.hover_background": "#232132ff",
@@ -426,7 +426,7 @@
        "tab.active_background": "#faf4edff",
        "search.match_background": "#9cced766",
        "panel.background": "#fef9f2ff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#57949fff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#5752794c",
        "scrollbar.thumb.hover_background": "#e5e0dfff",
@@ -806,7 +806,7 @@
        "tab.active_background": "#232136ff",
        "search.match_background": "#9cced766",
        "panel.background": "#28253cff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#9bced6ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#e0def44c",
        "scrollbar.thumb.hover_background": "#322f48ff",
--- a/assets/themes/sandcastle/sandcastle.json
+++ b/assets/themes/sandcastle/sandcastle.json
@@ -46,7 +46,7 @@
        "tab.active_background": "#282c33ff",
        "search.match_background": "#528b8b66",
        "panel.background": "#2b3038ff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#518b8bff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#fdf4c14c",
        "scrollbar.thumb.hover_background": "#313741ff",
--- a/assets/themes/solarized/solarized.json
+++ b/assets/themes/solarized/solarized.json
@@ -46,7 +46,7 @@
        "tab.active_background": "#002a35ff",
        "search.match_background": "#288bd166",
        "panel.background": "#04313bff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#278ad1ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#fdf6e34c",
        "scrollbar.thumb.hover_background": "#053541ff",
@@ -416,7 +416,7 @@
        "tab.active_background": "#fdf6e3ff",
        "search.match_background": "#298bd166",
        "panel.background": "#f3eddaff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#288bd1ff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#002a354c",
        "scrollbar.thumb.hover_background": "#dcdacbff",
--- a/assets/themes/summercamp/summercamp.json
+++ b/assets/themes/summercamp/summercamp.json
@@ -46,7 +46,7 @@
        "tab.active_background": "#1b1810ff",
        "search.match_background": "#499bef66",
        "panel.background": "#231f16ff",
-        "panel.focused_border": null,
+        "panel.focused_border": "#499befff",
        "pane.focused_border": null,
        "scrollbar.thumb.background": "#f8f5de4c",
        "scrollbar.thumb.hover_background": "#29251bff",
--- a/crates/assistant/src/assistant_panel.rs
+++ b/crates/assistant/src/assistant_panel.rs
@@ -55,7 +55,7 @@ use language_model::{
    LanguageModelProvider, LanguageModelProviderId, LanguageModelRegistry, Role,
    ZED_CLOUD_PROVIDER_ID,
 };
-use language_model_selector::{LanguageModelPickerDelegate, LanguageModelSelector};
+use language_model_selector::{LanguageModelSelector, LanguageModelSelectorPopoverMenu};
 use multi_buffer::MultiBufferRow;
 use picker::{Picker, PickerDelegate};
 use project::lsp_store::LocalLspAdapterDelegate;
@@ -143,7 +143,7 @@ pub struct AssistantPanel {
    languages: Arc<LanguageRegistry>,
    fs: Arc<dyn Fs>,
    subscriptions: Vec<Subscription>,
-    model_selector_menu_handle: PopoverMenuHandle<Picker<LanguageModelPickerDelegate>>,
+    model_selector_menu_handle: PopoverMenuHandle<LanguageModelSelector>,
    model_summary_editor: View<Editor>,
    authenticate_provider_task: Option<(LanguageModelProviderId, Task<()>)>,
    configuration_subscription: Option<Subscription>,
@@ -305,7 +305,7 @@ impl PickerDelegate for SavedContextPickerDelegate {
            ListItem::new(ix)
                .inset(true)
                .spacing(ListItemSpacing::Sparse)
-                .selected(selected)
+                .toggle_state(selected)
                .child(item),
        )
    }
@@ -341,11 +341,12 @@ impl AssistantPanel {
    ) -> Self {
        let model_selector_menu_handle = PopoverMenuHandle::default();
        let model_summary_editor = cx.new_view(Editor::single_line);
-        let context_editor_toolbar = cx.new_view(|_| {
+        let context_editor_toolbar = cx.new_view(|cx| {
            ContextEditorToolbarItem::new(
                workspace,
                model_selector_menu_handle.clone(),
                model_summary_editor.clone(),
+                cx,
            )
        });

@@ -441,7 +442,7 @@ impl AssistantPanel {
                            )
                        }
                    })
-                    .selected(
+                    .toggle_state(
                        pane.active_item()
                            .map_or(false, |item| item.downcast::<ContextHistory>().is_some()),
                    );
@@ -4455,23 +4456,36 @@ impl FollowableItem for ContextEditor {
 }

 pub struct ContextEditorToolbarItem {
-    fs: Arc<dyn Fs>,
    active_context_editor: Option<WeakView<ContextEditor>>,
    model_summary_editor: View<Editor>,
-    model_selector_menu_handle: PopoverMenuHandle<Picker<LanguageModelPickerDelegate>>,
+    language_model_selector: View<LanguageModelSelector>,
+    language_model_selector_menu_handle: PopoverMenuHandle<LanguageModelSelector>,
 }

 impl ContextEditorToolbarItem {
    pub fn new(
        workspace: &Workspace,
-        model_selector_menu_handle: PopoverMenuHandle<Picker<LanguageModelPickerDelegate>>,
+        model_selector_menu_handle: PopoverMenuHandle<LanguageModelSelector>,
        model_summary_editor: View<Editor>,
+        cx: &mut ViewContext<Self>,
    ) -> Self {
        Self {
-            fs: workspace.app_state().fs.clone(),
            active_context_editor: None,
            model_summary_editor,
-            model_selector_menu_handle,
+            language_model_selector: cx.new_view(|cx| {
+                let fs = workspace.app_state().fs.clone();
+                LanguageModelSelector::new(
+                    move |model, cx| {
+                        update_settings_file::<AssistantSettings>(
+                            fs.clone(),
+                            cx,
+                            move |settings, _| settings.set_model(model.clone()),
+                        );
+                    },
+                    cx,
+                )
+            }),
+            language_model_selector_menu_handle: model_selector_menu_handle,
        }
    }

@@ -4560,17 +4574,8 @@ impl Render for ContextEditorToolbarItem {
            //         .map(|remaining_items| format!("Files to scan: {}", remaining_items))
            // })
            .child(
-                LanguageModelSelector::new(
-                    {
-                        let fs = self.fs.clone();
-                        move |model, cx| {
-                            update_settings_file::<AssistantSettings>(
-                                fs.clone(),
-                                cx,
-                                move |settings, _| settings.set_model(model.clone()),
-                            );
-                        }
-                    },
+                LanguageModelSelectorPopoverMenu::new(
+                    self.language_model_selector.clone(),
                    ButtonLike::new("active-model")
                        .style(ButtonStyle::Subtle)
                        .child(
@@ -4616,7 +4621,7 @@ impl Render for ContextEditorToolbarItem {
                            Tooltip::for_action("Change Model", &ToggleModelSelector, cx)
                        }),
                )
-                .with_handle(self.model_selector_menu_handle.clone()),
+                .with_handle(self.language_model_selector_menu_handle.clone()),
            )
            .children(self.render_remaining_tokens(cx));

@@ -4951,7 +4956,7 @@ fn render_slash_command_output_toggle(
        ("slash-command-output-fold-indicator", row.0 as u64),
        !is_folded,
    )
-    .selected(is_folded)
+    .toggle_state(is_folded)
    .on_click(move |_e, cx| fold(!is_folded, cx))
    .into_any_element()
 }
@@ -4966,7 +4971,7 @@ fn fold_toggle(
 ) -> AnyElement {
    move |row, is_folded, fold, _cx| {
        Disclosure::new((name, row.0 as u64), !is_folded)
-            .selected(is_folded)
+            .toggle_state(is_folded)
            .on_click(move |_e, cx| fold(!is_folded, cx))
            .into_any_element()
    }
@@ -5008,7 +5013,7 @@ fn render_quote_selection_output_toggle(
    _cx: &mut WindowContext,
 ) -> AnyElement {
    Disclosure::new(("quote-selection-indicator", row.0 as u64), !is_folded)
-        .selected(is_folded)
+        .toggle_state(is_folded)
        .on_click(move |_e, cx| fold(!is_folded, cx))
        .into_any_element()
 }
@@ -5031,7 +5036,7 @@ fn render_pending_slash_command_gutter_decoration(
            icon = icon.icon_color(Color::Muted);
        }
        PendingSlashCommandStatus::Running { .. } => {
-            icon = icon.selected(true);
+            icon = icon.toggle_state(true);
        }
        PendingSlashCommandStatus::Error(_) => icon = icon.icon_color(Color::Error),
    }
@@ -5113,9 +5118,11 @@ fn make_lsp_adapter_delegate(
            return Ok(None::<Arc<dyn LspAdapterDelegate>>);
        };
        let http_client = project.client().http_client().clone();
-        project.lsp_store().update(cx, |lsp_store, cx| {
+        project.lsp_store().update(cx, |_, cx| {
            Ok(Some(LocalLspAdapterDelegate::new(
-                lsp_store,
+                project.languages().clone(),
+                project.environment(),
+                cx.weak_model(),
                &worktree,
                http_client,
                project.fs().clone(),
--- a/crates/assistant/src/context/context_tests.rs
+++ b/crates/assistant/src/context/context_tests.rs
@@ -17,7 +17,7 @@ use futures::{
    channel::mpsc,
    stream::{self, StreamExt},
 };
-use gpui::{AppContext, Model, SharedString, Task, TestAppContext, WeakView};
+use gpui::{prelude::*, AppContext, Model, SharedString, Task, TestAppContext, WeakView};
 use language::{Buffer, BufferSnapshot, LanguageRegistry, LspAdapterDelegate};
 use language_model::{LanguageModelCacheConfiguration, LanguageModelRegistry, Role};
 use parking_lot::Mutex;
@@ -35,7 +35,7 @@ use std::{
    sync::{atomic::AtomicBool, Arc},
 };
 use text::{network::Network, OffsetRangeExt as _, ReplicaId, ToOffset};
-use ui::{Context as _, IconName, WindowContext};
+use ui::{IconName, WindowContext};
 use unindent::Unindent;
 use util::{
    test::{generate_marked_text, marked_text_ranges},
--- a/crates/assistant/src/inline_assistant.rs
+++ b/crates/assistant/src/inline_assistant.rs
@@ -33,7 +33,7 @@ use language_model::{
    LanguageModel, LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage,
    LanguageModelTextStream, Role,
 };
-use language_model_selector::LanguageModelSelector;
+use language_model_selector::{LanguageModelSelector, LanguageModelSelectorPopoverMenu};
 use language_models::report_assistant_event;
 use multi_buffer::MultiBufferRow;
 use parking_lot::Mutex;
@@ -1358,8 +1358,8 @@ enum PromptEditorEvent {

 struct PromptEditor {
    id: InlineAssistId,
-    fs: Arc<dyn Fs>,
    editor: View<Editor>,
+    language_model_selector: View<LanguageModelSelector>,
    edited_since_done: bool,
    gutter_dimensions: Arc<Mutex<GutterDimensions>>,
    prompt_history: VecDeque<String>,
@@ -1500,43 +1500,27 @@ impl Render for PromptEditor {
                    .w(gutter_dimensions.full_width() + (gutter_dimensions.margin / 2.0))
                    .justify_center()
                    .gap_2()
-                    .child(
-                        LanguageModelSelector::new(
-                            {
-                                let fs = self.fs.clone();
-                                move |model, cx| {
-                                    update_settings_file::<AssistantSettings>(
-                                        fs.clone(),
-                                        cx,
-                                        move |settings, _| settings.set_model(model.clone()),
-                                    );
-                                }
-                            },
-                            IconButton::new("context", IconName::SettingsAlt)
-                                .shape(IconButtonShape::Square)
-                                .icon_size(IconSize::Small)
-                                .icon_color(Color::Muted)
-                                .tooltip(move |cx| {
-                                    Tooltip::with_meta(
-                                        format!(
-                                            "Using {}",
-                                            LanguageModelRegistry::read_global(cx)
-                                                .active_model()
-                                                .map(|model| model.name().0)
-                                                .unwrap_or_else(|| "No model selected".into()),
-                                        ),
-                                        None,
-                                        "Change Model",
-                                        cx,
-                                    )
-                                }),
-                        )
-                        .info_text(
-                            "Inline edits use context\n\
-                            from the currently selected\n\
-                            assistant panel tab.",
-                        ),
-                    )
+                    .child(LanguageModelSelectorPopoverMenu::new(
+                        self.language_model_selector.clone(),
+                        IconButton::new("context", IconName::SettingsAlt)
+                            .shape(IconButtonShape::Square)
+                            .icon_size(IconSize::Small)
+                            .icon_color(Color::Muted)
+                            .tooltip(move |cx| {
+                                Tooltip::with_meta(
+                                    format!(
+                                        "Using {}",
+                                        LanguageModelRegistry::read_global(cx)
+                                            .active_model()
+                                            .map(|model| model.name().0)
+                                            .unwrap_or_else(|| "No model selected".into()),
+                                    ),
+                                    None,
+                                    "Change Model",
+                                    cx,
+                                )
+                            }),
+                    ))
                    .map(|el| {
                        let CodegenStatus::Error(error) = self.codegen.read(cx).status(cx) else {
                            return el;
@@ -1550,7 +1534,7 @@ impl Render for PromptEditor {
                                v_flex()
                                    .child(
                                        IconButton::new("rate-limit-error", IconName::XCircle)
-                                            .selected(self.show_rate_limit_notice)
+                                            .toggle_state(self.show_rate_limit_notice)
                                            .shape(IconButtonShape::Square)
                                            .icon_size(IconSize::Small)
                                            .on_click(cx.listener(Self::toggle_rate_limit_notice)),
@@ -1642,6 +1626,19 @@ impl PromptEditor {
        let mut this = Self {
            id,
            editor: prompt_editor,
+            language_model_selector: cx.new_view(|cx| {
+                let fs = fs.clone();
+                LanguageModelSelector::new(
+                    move |model, cx| {
+                        update_settings_file::<AssistantSettings>(
+                            fs.clone(),
+                            cx,
+                            move |settings, _| settings.set_model(model.clone()),
+                        );
+                    },
+                    cx,
+                )
+            }),
            edited_since_done: false,
            gutter_dimensions,
            prompt_history,
@@ -1650,7 +1647,6 @@ impl PromptEditor {
            _codegen_subscription: cx.observe(&codegen, Self::handle_codegen_changed),
            editor_subscriptions: Vec::new(),
            codegen,
-            fs,
            pending_token_count: Task::ready(Ok(())),
            token_counts: None,
            _token_count_subscriptions: token_count_subscriptions,
@@ -2137,15 +2133,15 @@ impl PromptEditor {
                            "dont-show-again",
                            Label::new("Don't show again"),
                            if dismissed_rate_limit_notice() {
-                                ui::Selection::Selected
+                                ui::ToggleState::Selected
                            } else {
-                                ui::Selection::Unselected
+                                ui::ToggleState::Unselected
                            },
                            |selection, cx| {
                                let is_dismissed = match selection {
-                                    ui::Selection::Unselected => false,
-                                    ui::Selection::Indeterminate => return,
-                                    ui::Selection::Selected => true,
+                                    ui::ToggleState::Unselected => false,
+                                    ui::ToggleState::Indeterminate => return,
+                                    ui::ToggleState::Selected => true,
                                };

                                set_rate_limit_notice_dismissed(is_dismissed, cx)
--- a/crates/assistant/src/prompt_library.rs
+++ b/crates/assistant/src/prompt_library.rs
@@ -11,8 +11,8 @@ use futures::{
 use fuzzy::StringMatchCandidate;
 use gpui::{
    actions, point, size, transparent_black, Action, AppContext, BackgroundExecutor, Bounds,
-    EventEmitter, Global, HighlightStyle, PromptLevel, ReadGlobal, Subscription, Task, TextStyle,
-    TitlebarOptions, UpdateGlobal, View, WindowBounds, WindowHandle, WindowOptions,
+    EventEmitter, Global, PromptLevel, ReadGlobal, Subscription, Task, TextStyle, TitlebarOptions,
+    UpdateGlobal, View, WindowBounds, WindowHandle, WindowOptions,
 };
 use heed::{
    types::{SerdeBincode, SerdeJson, Str},
@@ -232,13 +232,13 @@ impl PickerDelegate for PromptPickerDelegate {
        let element = ListItem::new(ix)
            .inset(true)
            .spacing(ListItemSpacing::Sparse)
-            .selected(selected)
+            .toggle_state(selected)
            .child(h_flex().h_5().line_height(relative(1.)).child(Label::new(
                prompt.title.clone().unwrap_or("Untitled".into()),
            )))
            .end_slot::<IconButton>(default.then(|| {
                IconButton::new("toggle-default-prompt", IconName::SparkleFilled)
-                    .selected(true)
+                    .toggle_state(true)
                    .icon_color(Color::Accent)
                    .shape(IconButtonShape::Square)
                    .tooltip(move |cx| Tooltip::text("Remove from Default Prompt", cx))
@@ -274,7 +274,7 @@ impl PickerDelegate for PromptPickerDelegate {
                    })
                    .child(
                        IconButton::new("toggle-default-prompt", IconName::Sparkle)
-                            .selected(default)
+                            .toggle_state(default)
                            .selected_icon(IconName::SparkleFilled)
                            .icon_color(if default { Color::Accent } else { Color::Muted })
                            .shape(IconButtonShape::Square)
@@ -928,10 +928,8 @@ impl PromptLibrary {
                                                    status: cx.theme().status().clone(),
                                                    inlay_hints_style:
                                                        editor::make_inlay_hints_style(cx),
-                                                    suggestions_style: HighlightStyle {
-                                                        color: Some(cx.theme().status().predictive),
-                                                        ..HighlightStyle::default()
-                                                    },
+                                                    inline_completion_styles:
+                                                        editor::make_suggestion_styles(cx),
                                                    ..EditorStyle::default()
                                                },
                                            )),
@@ -1055,7 +1053,7 @@ impl PromptLibrary {
                                                        IconName::Sparkle,
                                                    )
                                                    .style(ButtonStyle::Transparent)
-                                                    .selected(prompt_metadata.default)
+                                                    .toggle_state(prompt_metadata.default)
                                                    .selected_icon(IconName::SparkleFilled)
                                                    .icon_color(if prompt_metadata.default {
                                                        Color::Accent
--- a/crates/assistant/src/slash_command_picker.rs
+++ b/crates/assistant/src/slash_command_picker.rs
@@ -176,7 +176,7 @@ impl PickerDelegate for SlashCommandDelegate {
                ListItem::new(ix)
                    .inset(true)
                    .spacing(ListItemSpacing::Dense)
-                    .selected(selected)
+                    .toggle_state(selected)
                    .tooltip({
                        let description = info.description.clone();
                        move |cx| cx.new_view(|_| Tooltip::new(description.clone())).into()
@@ -229,7 +229,7 @@ impl PickerDelegate for SlashCommandDelegate {
                ListItem::new(ix)
                    .inset(true)
                    .spacing(ListItemSpacing::Dense)
-                    .selected(selected)
+                    .toggle_state(selected)
                    .child(renderer(cx)),
            ),
        }
--- a/crates/assistant/src/terminal_inline_assistant.rs
+++ b/crates/assistant/src/terminal_inline_assistant.rs
@@ -20,7 +20,7 @@ use language::Buffer;
 use language_model::{
    LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage, Role,
 };
-use language_model_selector::LanguageModelSelector;
+use language_model_selector::{LanguageModelSelector, LanguageModelSelectorPopoverMenu};
 use language_models::report_assistant_event;
 use settings::{update_settings_file, Settings};
 use std::{
@@ -476,9 +476,9 @@ enum PromptEditorEvent {

 struct PromptEditor {
    id: TerminalInlineAssistId,
-    fs: Arc<dyn Fs>,
    height_in_lines: u8,
    editor: View<Editor>,
+    language_model_selector: View<LanguageModelSelector>,
    edited_since_done: bool,
    prompt_history: VecDeque<String>,
    prompt_history_ix: Option<usize>,
@@ -614,17 +614,8 @@ impl Render for PromptEditor {
                    .w_12()
                    .justify_center()
                    .gap_2()
-                    .child(LanguageModelSelector::new(
-                        {
-                            let fs = self.fs.clone();
-                            move |model, cx| {
-                                update_settings_file::<AssistantSettings>(
-                                    fs.clone(),
-                                    cx,
-                                    move |settings, _| settings.set_model(model.clone()),
-                                );
-                            }
-                        },
+                    .child(LanguageModelSelectorPopoverMenu::new(
+                        self.language_model_selector.clone(),
                        IconButton::new("context", IconName::SettingsAlt)
                            .shape(IconButtonShape::Square)
                            .icon_size(IconSize::Small)
@@ -718,6 +709,19 @@ impl PromptEditor {
            id,
            height_in_lines: 1,
            editor: prompt_editor,
+            language_model_selector: cx.new_view(|cx| {
+                let fs = fs.clone();
+                LanguageModelSelector::new(
+                    move |model, cx| {
+                        update_settings_file::<AssistantSettings>(
+                            fs.clone(),
+                            cx,
+                            move |settings, _| settings.set_model(model.clone()),
+                        );
+                    },
+                    cx,
+                )
+            }),
            edited_since_done: false,
            prompt_history,
            prompt_history_ix: None,
@@ -725,7 +729,6 @@ impl PromptEditor {
            _codegen_subscription: cx.observe(&codegen, Self::handle_codegen_changed),
            editor_subscriptions: Vec::new(),
            codegen,
-            fs,
            pending_token_count: Task::ready(Ok(())),
            token_count: None,
            _token_count_subscriptions: token_count_subscriptions,
--- a/crates/assistant2/Cargo.toml
+++ b/crates/assistant2/Cargo.toml
@@ -13,29 +13,65 @@ path = "src/assistant.rs"
 doctest = false

 [dependencies]
+anthropic = { workspace = true, features = ["schemars"] }
 anyhow.workspace = true
+assets.workspace = true
 assistant_tool.workspace = true
+async-watch.workspace = true
 client.workspace = true
+chrono.workspace = true
 collections.workspace = true
 command_palette_hooks.workspace = true
 context_server.workspace = true
+db.workspace = true
 editor.workspace = true
 feature_flags.workspace = true
+fs.workspace = true
 futures.workspace = true
+fuzzy.workspace = true
 gpui.workspace = true
+handlebars.workspace = true
+html_to_markdown.workspace = true
+http_client.workspace = true
 language.workspace = true
 language_model.workspace = true
 language_model_selector.workspace = true
 language_models.workspace = true
 log.workspace = true
+lsp.workspace = true
 markdown.workspace = true
+menu.workspace = true
+multi_buffer.workspace = true
+ollama = { workspace = true, features = ["schemars"] }
+open_ai = { workspace = true, features = ["schemars"] }
+ordered-float.workspace = true
+paths.workspace = true
+parking_lot.workspace = true
+picker.workspace = true
 project.workspace = true
 proto.workspace = true
+rope.workspace = true
+schemars.workspace = true
 serde.workspace = true
 serde_json.workspace = true
+serde_json_lenient.workspace = true
 settings.workspace = true
+similar.workspace = true
 smol.workspace = true
+telemetry_events.workspace = true
+terminal_view.workspace = true
+text.workspace = true
+terminal.workspace = true
 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
+zed_actions.workspace = true
+
+[dev-dependencies]
+rand.workspace = true
+indoc.workspace = true
--- a/crates/assistant2/src/active_thread.rs
+++ b/crates/assistant2/src/active_thread.rs
@@ -0,0 +1,254 @@
+use std::sync::Arc;
+
+use assistant_tool::ToolWorkingSet;
+use collections::HashMap;
+use gpui::{
+    list, AnyElement, AppContext, Empty, ListAlignment, ListState, Model, StyleRefinement,
+    Subscription, TextStyleRefinement, View, WeakView,
+};
+use language::LanguageRegistry;
+use language_model::Role;
+use markdown::{Markdown, MarkdownStyle};
+use settings::Settings as _;
+use theme::ThemeSettings;
+use ui::prelude::*;
+use workspace::Workspace;
+
+use crate::thread::{MessageId, Thread, ThreadError, ThreadEvent};
+use crate::ui::ContextPill;
+
+pub struct ActiveThread {
+    workspace: WeakView<Workspace>,
+    language_registry: Arc<LanguageRegistry>,
+    tools: Arc<ToolWorkingSet>,
+    thread: Model<Thread>,
+    messages: Vec<MessageId>,
+    list_state: ListState,
+    rendered_messages_by_id: HashMap<MessageId, View<Markdown>>,
+    last_error: Option<ThreadError>,
+    _subscriptions: Vec<Subscription>,
+}
+
+impl ActiveThread {
+    pub fn new(
+        thread: Model<Thread>,
+        workspace: WeakView<Workspace>,
+        language_registry: Arc<LanguageRegistry>,
+        tools: Arc<ToolWorkingSet>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        let subscriptions = vec![
+            cx.observe(&thread, |_, _, cx| cx.notify()),
+            cx.subscribe(&thread, Self::handle_thread_event),
+        ];
+
+        let mut this = Self {
+            workspace,
+            language_registry,
+            tools,
+            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| {
+                    this.update(cx, |this, cx| this.render_message(ix, cx))
+                        .unwrap()
+                }
+            }),
+            last_error: None,
+            _subscriptions: subscriptions,
+        };
+
+        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
+            this.push_message(&message.id, message.text.clone(), cx);
+        }
+
+        this
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.messages.is_empty()
+    }
+
+    pub fn summary(&self, cx: &AppContext) -> Option<SharedString> {
+        self.thread.read(cx).summary()
+    }
+
+    pub fn last_error(&self) -> Option<ThreadError> {
+        self.last_error.clone()
+    }
+
+    pub fn clear_last_error(&mut self) {
+        self.last_error.take();
+    }
+
+    fn push_message(&mut self, id: &MessageId, text: String, cx: &mut ViewContext<Self>) {
+        let old_len = self.messages.len();
+        self.messages.push(*id);
+        self.list_state.splice(old_len..old_len, 1);
+
+        let theme_settings = ThemeSettings::get_global(cx);
+        let ui_font_size = TextSize::Default.rems(cx);
+        let buffer_font_size = theme_settings.buffer_font_size;
+
+        let mut text_style = cx.text_style();
+        text_style.refine(&TextStyleRefinement {
+            font_family: Some(theme_settings.ui_font.family.clone()),
+            font_size: Some(ui_font_size.into()),
+            color: Some(cx.theme().colors().text),
+            ..Default::default()
+        });
+
+        let markdown_style = MarkdownStyle {
+            base_text_style: text_style,
+            syntax: cx.theme().syntax().clone(),
+            selection_background_color: cx.theme().players().local().selection,
+            code_block: StyleRefinement {
+                text: Some(TextStyleRefinement {
+                    font_family: Some(theme_settings.buffer_font.family.clone()),
+                    font_size: Some(buffer_font_size.into()),
+                    ..Default::default()
+                }),
+                ..Default::default()
+            },
+            inline_code: TextStyleRefinement {
+                font_family: Some(theme_settings.buffer_font.family.clone()),
+                font_size: Some(ui_font_size.into()),
+                background_color: Some(cx.theme().colors().editor_background),
+                ..Default::default()
+            },
+            ..Default::default()
+        };
+
+        let markdown = cx.new_view(|cx| {
+            Markdown::new(
+                text,
+                markdown_style,
+                Some(self.language_registry.clone()),
+                None,
+                cx,
+            )
+        });
+        self.rendered_messages_by_id.insert(*id, markdown);
+    }
+
+    fn handle_thread_event(
+        &mut self,
+        _: Model<Thread>,
+        event: &ThreadEvent,
+        cx: &mut ViewContext<Self>,
+    ) {
+        match event {
+            ThreadEvent::ShowError(error) => {
+                self.last_error = Some(error.clone());
+            }
+            ThreadEvent::StreamedCompletion => {}
+            ThreadEvent::SummaryChanged => {}
+            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);
+                    });
+                }
+            }
+            ThreadEvent::MessageAdded(message_id) => {
+                if let Some(message_text) = self
+                    .thread
+                    .read(cx)
+                    .message(*message_id)
+                    .map(|message| message.text.clone())
+                {
+                    self.push_message(message_id, message_text, cx);
+                }
+
+                cx.notify();
+            }
+            ThreadEvent::UsePendingTools => {
+                let pending_tool_uses = self
+                    .thread
+                    .read(cx)
+                    .pending_tool_uses()
+                    .into_iter()
+                    .filter(|tool_use| tool_use.status.is_idle())
+                    .cloned()
+                    .collect::<Vec<_>>();
+
+                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);
+
+                        self.thread.update(cx, |thread, cx| {
+                            thread.insert_tool_output(
+                                tool_use.assistant_message_id,
+                                tool_use.id.clone(),
+                                task,
+                                cx,
+                            );
+                        });
+                    }
+                }
+            }
+            ThreadEvent::ToolFinished { .. } => {}
+        }
+    }
+
+    fn render_message(&self, ix: usize, cx: &mut ViewContext<Self>) -> AnyElement {
+        let message_id = self.messages[ix];
+        let Some(message) = self.thread.read(cx).message(message_id) else {
+            return Empty.into_any();
+        };
+
+        let Some(markdown) = self.rendered_messages_by_id.get(&message_id) else {
+            return Empty.into_any();
+        };
+
+        let context = self.thread.read(cx).context_for_message(message_id);
+
+        let (role_icon, role_name) = match message.role {
+            Role::User => (IconName::Person, "You"),
+            Role::Assistant => (IconName::ZedAssistant, "Assistant"),
+            Role::System => (IconName::Settings, "System"),
+        };
+
+        div()
+            .id(("message-container", ix))
+            .p_2()
+            .child(
+                v_flex()
+                    .border_1()
+                    .border_color(cx.theme().colors().border_variant)
+                    .rounded_md()
+                    .child(
+                        h_flex()
+                            .justify_between()
+                            .p_1p5()
+                            .border_b_1()
+                            .border_color(cx.theme().colors().border_variant)
+                            .child(
+                                h_flex()
+                                    .gap_2()
+                                    .child(Icon::new(role_icon).size(IconSize::Small))
+                                    .child(Label::new(role_name).size(LabelSize::Small)),
+                            ),
+                    )
+                    .child(v_flex().p_1p5().text_ui(cx).child(markdown.clone()))
+                    .when_some(context, |parent, context| {
+                        parent.child(
+                            h_flex().flex_wrap().gap_2().p_1p5().children(
+                                context
+                                    .iter()
+                                    .map(|context| ContextPill::new(context.clone())),
+                            ),
+                        )
+                    }),
+            )
+            .into_any()
+    }
+}
+
+impl Render for ActiveThread {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        list(self.list_state.clone()).flex_1()
+    }
+}
--- a/crates/assistant2/src/assistant.rs
+++ b/crates/assistant2/src/assistant.rs
@@ -1,11 +1,29 @@
+mod active_thread;
 mod assistant_panel;
+mod assistant_settings;
+mod context;
+mod context_picker;
+mod inline_assistant;
 mod message_editor;
+mod prompts;
+mod streaming_diff;
+mod terminal_inline_assistant;
 mod thread;
+mod thread_history;
 mod thread_store;
+mod ui;

+use std::sync::Arc;
+
+use assistant_settings::AssistantSettings;
+use client::Client;
 use command_palette_hooks::CommandPaletteFilter;
 use feature_flags::{Assistant2FeatureFlag, FeatureFlagAppExt};
+use fs::Fs;
 use gpui::{actions, AppContext};
+use prompts::PromptLoadingParams;
+use settings::Settings as _;
+use util::ResultExt;

 pub use crate::assistant_panel::AssistantPanel;

@@ -16,15 +34,43 @@ actions!(
        NewThread,
        ToggleModelSelector,
        OpenHistory,
-        Chat
+        Chat,
+        ToggleInlineAssist,
+        CycleNextInlineAssist,
+        CyclePreviousInlineAssist
    ]
 );

 const NAMESPACE: &str = "assistant2";

 /// Initializes the `assistant2` crate.
-pub fn init(cx: &mut AppContext) {
+pub fn init(fs: Arc<dyn Fs>, client: Arc<Client>, stdout_is_a_pty: bool, cx: &mut AppContext) {
+    AssistantSettings::register(cx);
    assistant_panel::init(cx);
+
+    let prompt_builder = prompts::PromptBuilder::new(Some(PromptLoadingParams {
+        fs: fs.clone(),
+        repo_path: stdout_is_a_pty
+            .then(|| std::env::current_dir().log_err())
+            .flatten(),
+        cx,
+    }))
+    .log_err()
+    .map(Arc::new)
+    .unwrap_or_else(|| Arc::new(prompts::PromptBuilder::new(None).unwrap()));
+    inline_assistant::init(
+        fs.clone(),
+        prompt_builder.clone(),
+        client.telemetry().clone(),
+        cx,
+    );
+    terminal_inline_assistant::init(
+        fs.clone(),
+        prompt_builder.clone(),
+        client.telemetry().clone(),
+        cx,
+    );
+
    feature_gate_assistant2_actions(cx);
 }

--- a/crates/assistant2/src/assistant_panel.rs
+++ b/crates/assistant2/src/assistant_panel.rs
@@ -3,27 +3,23 @@ use std::sync::Arc;
 use anyhow::Result;
 use assistant_tool::ToolWorkingSet;
 use client::zed_urls;
-use collections::HashMap;
 use gpui::{
-    list, prelude::*, px, svg, Action, AnyElement, AppContext, AsyncWindowContext, Empty,
-    EventEmitter, FocusHandle, FocusableView, FontWeight, ListAlignment, ListState, Model, Pixels,
-    StyleRefinement, Subscription, Task, TextStyleRefinement, View, ViewContext, WeakView,
+    prelude::*, px, svg, Action, AnyElement, AppContext, AsyncWindowContext, EventEmitter,
+    FocusHandle, FocusableView, FontWeight, Model, Pixels, Task, View, ViewContext, WeakView,
    WindowContext,
 };
 use language::LanguageRegistry;
-use language_model::{LanguageModelRegistry, Role};
-use language_model_selector::LanguageModelSelector;
-use markdown::{Markdown, MarkdownStyle};
-use settings::Settings;
-use theme::ThemeSettings;
-use ui::{prelude::*, ButtonLike, Divider, IconButtonShape, KeyBinding, ListItem, Tab, Tooltip};
+use time::UtcOffset;
+use ui::{prelude::*, Divider, IconButtonShape, KeyBinding, Tab, Tooltip};
 use workspace::dock::{DockPosition, Panel, PanelEvent};
 use workspace::Workspace;

+use crate::active_thread::ActiveThread;
 use crate::message_editor::MessageEditor;
-use crate::thread::{MessageId, Thread, ThreadError, ThreadEvent};
+use crate::thread::{ThreadError, ThreadId};
+use crate::thread_history::{PastThread, ThreadHistory};
 use crate::thread_store::ThreadStore;
-use crate::{NewThread, OpenHistory, ToggleFocus, ToggleModelSelector};
+use crate::{NewThread, OpenHistory, ToggleFocus};

 pub fn init(cx: &mut AppContext) {
    cx.observe_new_views(
@@ -36,19 +32,21 @@ pub fn init(cx: &mut AppContext) {
    .detach();
 }

+enum ActiveView {
+    Thread,
+    History,
+}
+
 pub struct AssistantPanel {
    workspace: WeakView<Workspace>,
    language_registry: Arc<LanguageRegistry>,
-    #[allow(unused)]
    thread_store: Model<ThreadStore>,
-    thread: Model<Thread>,
-    thread_messages: Vec<MessageId>,
-    rendered_messages_by_id: HashMap<MessageId, View<Markdown>>,
-    thread_list_state: ListState,
+    thread: View<ActiveThread>,
    message_editor: View<MessageEditor>,
    tools: Arc<ToolWorkingSet>,
-    last_error: Option<ThreadError>,
-    _subscriptions: Vec<Subscription>,
+    local_timezone: UtcOffset,
+    active_view: ActiveView,
+    history: View<ThreadHistory>,
 }

 impl AssistantPanel {
@@ -77,160 +75,94 @@ impl AssistantPanel {
        tools: Arc<ToolWorkingSet>,
        cx: &mut ViewContext<Self>,
    ) -> Self {
-        let thread = cx.new_model(|cx| Thread::new(tools.clone(), cx));
-        let subscriptions = vec![
-            cx.observe(&thread, |_, _, cx| cx.notify()),
-            cx.subscribe(&thread, Self::handle_thread_event),
-        ];
+        let thread = thread_store.update(cx, |this, cx| this.create_thread(cx));
+        let language_registry = workspace.project().read(cx).languages().clone();
+        let workspace = workspace.weak_handle();
+        let weak_self = cx.view().downgrade();

        Self {
-            workspace: workspace.weak_handle(),
-            language_registry: workspace.project().read(cx).languages().clone(),
-            thread_store,
-            thread: thread.clone(),
-            thread_messages: Vec::new(),
-            rendered_messages_by_id: HashMap::default(),
-            thread_list_state: ListState::new(0, ListAlignment::Bottom, px(1024.), {
-                let this = cx.view().downgrade();
-                move |ix, cx: &mut WindowContext| {
-                    this.update(cx, |this, cx| this.render_message(ix, cx))
-                        .unwrap()
-                }
+            active_view: ActiveView::Thread,
+            workspace: workspace.clone(),
+            language_registry: language_registry.clone(),
+            thread_store: thread_store.clone(),
+            thread: cx.new_view(|cx| {
+                ActiveThread::new(
+                    thread.clone(),
+                    workspace.clone(),
+                    language_registry,
+                    tools.clone(),
+                    cx,
+                )
            }),
-            message_editor: cx.new_view(|cx| MessageEditor::new(thread, cx)),
+            message_editor: cx.new_view(|cx| MessageEditor::new(workspace, thread.clone(), cx)),
            tools,
-            last_error: None,
-            _subscriptions: subscriptions,
+            local_timezone: UtcOffset::from_whole_seconds(
+                chrono::Local::now().offset().local_minus_utc(),
+            )
+            .unwrap(),
+            history: cx.new_view(|cx| ThreadHistory::new(weak_self, thread_store, cx)),
        }
    }

+    pub(crate) fn local_timezone(&self) -> UtcOffset {
+        self.local_timezone
+    }
+
    fn new_thread(&mut self, cx: &mut ViewContext<Self>) {
-        let tools = self.thread.read(cx).tools().clone();
-        let thread = cx.new_model(|cx| Thread::new(tools, cx));
-        let subscriptions = vec![
-            cx.observe(&thread, |_, _, cx| cx.notify()),
-            cx.subscribe(&thread, Self::handle_thread_event),
-        ];
-
-        self.message_editor = cx.new_view(|cx| MessageEditor::new(thread.clone(), cx));
-        self.thread = thread;
-        self.thread_messages.clear();
-        self.thread_list_state.reset(0);
-        self.rendered_messages_by_id.clear();
-        self._subscriptions = subscriptions;
+        let thread = self
+            .thread_store
+            .update(cx, |this, cx| this.create_thread(cx));

+        self.active_view = ActiveView::Thread;
+        self.thread = cx.new_view(|cx| {
+            ActiveThread::new(
+                thread.clone(),
+                self.workspace.clone(),
+                self.language_registry.clone(),
+                self.tools.clone(),
+                cx,
+            )
+        });
+        self.message_editor =
+            cx.new_view(|cx| MessageEditor::new(self.workspace.clone(), thread, cx));
        self.message_editor.focus_handle(cx).focus(cx);
    }

-    fn handle_thread_event(
-        &mut self,
-        _: Model<Thread>,
-        event: &ThreadEvent,
-        cx: &mut ViewContext<Self>,
-    ) {
-        match event {
-            ThreadEvent::ShowError(error) => {
-                self.last_error = Some(error.clone());
-            }
-            ThreadEvent::StreamedCompletion => {}
-            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);
-                    });
-                }
-            }
-            ThreadEvent::MessageAdded(message_id) => {
-                let old_len = self.thread_messages.len();
-                self.thread_messages.push(*message_id);
-                self.thread_list_state.splice(old_len..old_len, 1);
+    pub(crate) fn open_thread(&mut self, thread_id: &ThreadId, cx: &mut ViewContext<Self>) {
+        let Some(thread) = self
+            .thread_store
+            .update(cx, |this, cx| this.open_thread(thread_id, cx))
+        else {
+            return;
+        };

-                if let Some(message_text) = self
-                    .thread
-                    .read(cx)
-                    .message(*message_id)
-                    .map(|message| message.text.clone())
-                {
-                    let theme_settings = ThemeSettings::get_global(cx);
-                    let ui_font_size = TextSize::Default.rems(cx);
-                    let buffer_font_size = theme_settings.buffer_font_size;
+        self.active_view = ActiveView::Thread;
+        self.thread = cx.new_view(|cx| {
+            ActiveThread::new(
+                thread.clone(),
+                self.workspace.clone(),
+                self.language_registry.clone(),
+                self.tools.clone(),
+                cx,
+            )
+        });
+        self.message_editor =
+            cx.new_view(|cx| MessageEditor::new(self.workspace.clone(), thread, cx));
+        self.message_editor.focus_handle(cx).focus(cx);
+    }

-                    let mut text_style = cx.text_style();
-                    text_style.refine(&TextStyleRefinement {
-                        font_family: Some(theme_settings.ui_font.family.clone()),
-                        font_size: Some(ui_font_size.into()),
-                        color: Some(cx.theme().colors().text),
-                        ..Default::default()
-                    });
-
-                    let markdown_style = MarkdownStyle {
-                        base_text_style: text_style,
-                        syntax: cx.theme().syntax().clone(),
-                        selection_background_color: cx.theme().players().local().selection,
-                        code_block: StyleRefinement {
-                            text: Some(TextStyleRefinement {
-                                font_family: Some(theme_settings.buffer_font.family.clone()),
-                                font_size: Some(buffer_font_size.into()),
-                                ..Default::default()
-                            }),
-                            ..Default::default()
-                        },
-                        inline_code: TextStyleRefinement {
-                            font_family: Some(theme_settings.buffer_font.family.clone()),
-                            font_size: Some(ui_font_size.into()),
-                            background_color: Some(cx.theme().colors().editor_background),
-                            ..Default::default()
-                        },
-                        ..Default::default()
-                    };
-
-                    let markdown = cx.new_view(|cx| {
-                        Markdown::new(
-                            message_text,
-                            markdown_style,
-                            Some(self.language_registry.clone()),
-                            None,
-                            cx,
-                        )
-                    });
-                    self.rendered_messages_by_id.insert(*message_id, markdown);
-                }
-
-                cx.notify();
-            }
-            ThreadEvent::UsePendingTools => {
-                let pending_tool_uses = self
-                    .thread
-                    .read(cx)
-                    .pending_tool_uses()
-                    .into_iter()
-                    .filter(|tool_use| tool_use.status.is_idle())
-                    .cloned()
-                    .collect::<Vec<_>>();
-
-                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);
-
-                        self.thread.update(cx, |thread, cx| {
-                            thread.insert_tool_output(
-                                tool_use.assistant_message_id,
-                                tool_use.id.clone(),
-                                task,
-                                cx,
-                            );
-                        });
-                    }
-                }
-            }
-            ThreadEvent::ToolFinished { .. } => {}
-        }
+    pub(crate) fn delete_thread(&mut self, thread_id: &ThreadId, cx: &mut ViewContext<Self>) {
+        self.thread_store
+            .update(cx, |this, cx| this.delete_thread(thread_id, cx));
    }
 }

 impl FocusableView for AssistantPanel {
    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
-        self.message_editor.focus_handle(cx)
+        match self.active_view {
+            ActiveView::Thread => self.message_editor.focus_handle(cx),
+            ActiveView::History => self.history.focus_handle(cx),
+        }
    }
 }

@@ -289,11 +221,10 @@ impl AssistantPanel {
            .bg(cx.theme().colors().tab_bar_background)
            .border_b_1()
            .border_color(cx.theme().colors().border_variant)
-            .child(h_flex().child(Label::new("Thread Title Goes Here")))
+            .child(h_flex().children(self.thread.read(cx).summary(cx).map(Label::new)))
            .child(
                h_flex()
                    .gap(DynamicSpacing::Base08.rems(cx))
-                    .child(self.render_language_model_selector(cx))
                    .child(Divider::vertical())
                    .child(
                        IconButton::new("new-thread", IconName::Plus)
@@ -348,210 +279,68 @@ impl AssistantPanel {
            )
    }

-    fn render_language_model_selector(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
-        let active_provider = LanguageModelRegistry::read_global(cx).active_provider();
-        let active_model = LanguageModelRegistry::read_global(cx).active_model();
-
-        LanguageModelSelector::new(
-            |model, _cx| {
-                println!("Selected {:?}", model.name());
-            },
-            ButtonLike::new("active-model")
-                .style(ButtonStyle::Subtle)
-                .child(
-                    h_flex()
-                        .w_full()
-                        .gap_0p5()
-                        .child(
-                            div()
-                                .overflow_x_hidden()
-                                .flex_grow()
-                                .whitespace_nowrap()
-                                .child(match (active_provider, active_model) {
-                                    (Some(provider), Some(model)) => h_flex()
-                                        .gap_1()
-                                        .child(
-                                            Icon::new(
-                                                model.icon().unwrap_or_else(|| provider.icon()),
-                                            )
-                                            .color(Color::Muted)
-                                            .size(IconSize::XSmall),
-                                        )
-                                        .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(),
-                                }),
-                        )
-                        .child(
-                            Icon::new(IconName::ChevronDown)
-                                .color(Color::Muted)
-                                .size(IconSize::XSmall),
-                        ),
-                )
-                .tooltip(move |cx| Tooltip::for_action("Change Model", &ToggleModelSelector, cx)),
-        )
-    }
-
-    fn render_message_list(&self, cx: &mut ViewContext<Self>) -> AnyElement {
-        if self.thread_messages.is_empty() {
-            #[allow(clippy::useless_vec)]
-            let recent_threads = vec![1, 2, 3];
-
-            return v_flex()
-                .gap_2()
-                .mx_auto()
-                .child(
-                    v_flex().w_full().child(
-                        svg()
-                            .path("icons/logo_96.svg")
-                            .text_color(cx.theme().colors().text)
-                            .w(px(40.))
-                            .h(px(40.))
-                            .mx_auto()
-                            .mb_4(),
-                    ),
-                )
-                .child(v_flex())
-                .child(
-                    h_flex()
-                        .w_full()
-                        .justify_center()
-                        .child(Label::new("Context Examples:").size(LabelSize::Small)),
-                )
-                .child(
-                    h_flex()
-                        .gap_2()
-                        .justify_center()
-                        .child(
-                            h_flex()
-                                .gap_1()
-                                .p_0p5()
-                                .rounded_md()
-                                .border_1()
-                                .border_color(cx.theme().colors().border_variant)
-                                .child(
-                                    Icon::new(IconName::Terminal)
-                                        .size(IconSize::Small)
-                                        .color(Color::Disabled),
-                                )
-                                .child(Label::new("Terminal").size(LabelSize::Small)),
-                        )
-                        .child(
-                            h_flex()
-                                .gap_1()
-                                .p_0p5()
-                                .rounded_md()
-                                .border_1()
-                                .border_color(cx.theme().colors().border_variant)
-                                .child(
-                                    Icon::new(IconName::Folder)
-                                        .size(IconSize::Small)
-                                        .color(Color::Disabled),
-                                )
-                                .child(Label::new("/src/components").size(LabelSize::Small)),
-                        ),
-                )
-                .child(
-                    h_flex()
-                        .w_full()
-                        .justify_center()
-                        .child(Label::new("Recent Threads:").size(LabelSize::Small)),
-                )
-                .child(
-                    v_flex().gap_2().children(
-                        recent_threads
-                            .iter()
-                            .map(|_thread| self.render_past_thread(cx)),
-                    ),
-                )
-                .child(
-                    h_flex().w_full().justify_center().child(
-                        Button::new("view-all-past-threads", "View All Past Threads")
-                            .style(ButtonStyle::Subtle)
-                            .label_size(LabelSize::Small)
-                            .key_binding(KeyBinding::for_action_in(
-                                &OpenHistory,
-                                &self.focus_handle(cx),
-                                cx,
-                            ))
-                            .on_click(move |_event, cx| {
-                                cx.dispatch_action(OpenHistory.boxed_clone());
-                            }),
-                    ),
-                )
-                .into_any();
+    fn render_active_thread_or_empty_state(&self, cx: &mut ViewContext<Self>) -> AnyElement {
+        if self.thread.read(cx).is_empty() {
+            return self.render_thread_empty_state(cx).into_any_element();
        }

-        list(self.thread_list_state.clone()).flex_1().into_any()
+        self.thread.clone().into_any()
    }

-    fn render_message(&self, ix: usize, cx: &mut ViewContext<Self>) -> AnyElement {
-        let message_id = self.thread_messages[ix];
-        let Some(message) = self.thread.read(cx).message(message_id) else {
-            return Empty.into_any();
-        };
+    fn render_thread_empty_state(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+        let recent_threads = self
+            .thread_store
+            .update(cx, |this, cx| this.recent_threads(3, cx));

-        let Some(markdown) = self.rendered_messages_by_id.get(&message_id) else {
-            return Empty.into_any();
-        };
-
-        let (role_icon, role_name) = match message.role {
-            Role::User => (IconName::Person, "You"),
-            Role::Assistant => (IconName::ZedAssistant, "Assistant"),
-            Role::System => (IconName::Settings, "System"),
-        };
-
-        div()
-            .id(("message-container", ix))
-            .p_2()
+        v_flex()
+            .gap_2()
+            .mx_auto()
            .child(
-                v_flex()
-                    .border_1()
-                    .border_color(cx.theme().colors().border_variant)
-                    .rounded_md()
+                v_flex().w_full().child(
+                    svg()
+                        .path("icons/logo_96.svg")
+                        .text_color(cx.theme().colors().text)
+                        .w(px(40.))
+                        .h(px(40.))
+                        .mx_auto()
+                        .mb_4(),
+                ),
+            )
+            .when(!recent_threads.is_empty(), |parent| {
+                parent
                    .child(
                        h_flex()
-                            .justify_between()
-                            .p_1p5()
-                            .border_b_1()
-                            .border_color(cx.theme().colors().border_variant)
-                            .child(
-                                h_flex()
-                                    .gap_2()
-                                    .child(Icon::new(role_icon).size(IconSize::Small))
-                                    .child(Label::new(role_name).size(LabelSize::Small)),
-                            ),
+                            .w_full()
+                            .justify_center()
+                            .child(Label::new("Recent Threads:").size(LabelSize::Small)),
                    )
-                    .child(v_flex().p_1p5().text_ui(cx).child(markdown.clone())),
-            )
-            .into_any()
-    }
-
-    fn render_past_thread(&self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
-        ListItem::new("temp")
-            .start_slot(Icon::new(IconName::MessageBubbles))
-            .child(Label::new("Some Thread Title"))
-            .end_slot(
-                h_flex()
-                    .gap_2()
-                    .child(Label::new("1 hour ago").color(Color::Disabled))
                    .child(
-                        IconButton::new("delete", IconName::TrashAlt)
-                            .shape(IconButtonShape::Square)
-                            .icon_size(IconSize::Small),
-                    ),
-            )
+                        v_flex().gap_2().children(
+                            recent_threads
+                                .into_iter()
+                                .map(|thread| PastThread::new(thread, cx.view().downgrade())),
+                        ),
+                    )
+                    .child(
+                        h_flex().w_full().justify_center().child(
+                            Button::new("view-all-past-threads", "View All Past Threads")
+                                .style(ButtonStyle::Subtle)
+                                .label_size(LabelSize::Small)
+                                .key_binding(KeyBinding::for_action_in(
+                                    &OpenHistory,
+                                    &self.focus_handle(cx),
+                                    cx,
+                                ))
+                                .on_click(move |_event, cx| {
+                                    cx.dispatch_action(OpenHistory.boxed_clone());
+                                }),
+                        ),
+                    )
+            })
    }

    fn render_last_error(&self, cx: &mut ViewContext<Self>) -> Option<AnyElement> {
-        let last_error = self.last_error.as_ref()?;
+        let last_error = self.thread.read(cx).last_error()?;

        Some(
            div()
@@ -569,7 +358,7 @@ impl AssistantPanel {
                        self.render_max_monthly_spend_reached_error(cx)
                    }
                    ThreadError::Message(error_message) => {
-                        self.render_error_message(error_message, cx)
+                        self.render_error_message(&error_message, cx)
                    }
                })
                .into_any(),
@@ -601,14 +390,20 @@ impl AssistantPanel {
                    .mt_1()
                    .child(Button::new("subscribe", "Subscribe").on_click(cx.listener(
                        |this, _, cx| {
-                            this.last_error = None;
+                            this.thread.update(cx, |this, _cx| {
+                                this.clear_last_error();
+                            });
+
                            cx.open_url(&zed_urls::account_url(cx));
                            cx.notify();
                        },
                    )))
                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
                        |this, _, cx| {
-                            this.last_error = None;
+                            this.thread.update(cx, |this, _cx| {
+                                this.clear_last_error();
+                            });
+
                            cx.notify();
                        },
                    ))),
@@ -642,7 +437,10 @@ impl AssistantPanel {
                    .child(
                        Button::new("subscribe", "Update Monthly Spend Limit").on_click(
                            cx.listener(|this, _, cx| {
-                                this.last_error = None;
+                                this.thread.update(cx, |this, _cx| {
+                                    this.clear_last_error();
+                                });
+
                                cx.open_url(&zed_urls::account_url(cx));
                                cx.notify();
                            }),
@@ -650,7 +448,10 @@ impl AssistantPanel {
                    )
                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
                        |this, _, cx| {
-                            this.last_error = None;
+                            this.thread.update(cx, |this, _cx| {
+                                this.clear_last_error();
+                            });
+
                            cx.notify();
                        },
                    ))),
@@ -688,7 +489,10 @@ impl AssistantPanel {
                    .mt_1()
                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
                        |this, _, cx| {
-                            this.last_error = None;
+                            this.thread.update(cx, |this, _cx| {
+                                this.clear_last_error();
+                            });
+
                            cx.notify();
                        },
                    ))),
@@ -706,17 +510,23 @@ impl Render for AssistantPanel {
            .on_action(cx.listener(|this, _: &NewThread, cx| {
                this.new_thread(cx);
            }))
-            .on_action(cx.listener(|_this, _: &OpenHistory, _cx| {
-                println!("Open History");
+            .on_action(cx.listener(|this, _: &OpenHistory, cx| {
+                this.active_view = ActiveView::History;
+                this.history.focus_handle(cx).focus(cx);
+                cx.notify();
            }))
            .child(self.render_toolbar(cx))
-            .child(self.render_message_list(cx))
-            .child(
-                h_flex()
-                    .border_t_1()
-                    .border_color(cx.theme().colors().border_variant)
-                    .child(self.message_editor.clone()),
-            )
-            .children(self.render_last_error(cx))
+            .map(|parent| match self.active_view {
+                ActiveView::Thread => parent
+                    .child(self.render_active_thread_or_empty_state(cx))
+                    .child(
+                        h_flex()
+                            .border_t_1()
+                            .border_color(cx.theme().colors().border_variant)
+                            .child(self.message_editor.clone()),
+                    )
+                    .children(self.render_last_error(cx)),
+                ActiveView::History => parent.child(self.history.clone()),
+            })
    }
 }
--- a/crates/assistant2/src/assistant_settings.rs
+++ b/crates/assistant2/src/assistant_settings.rs
@@ -0,0 +1,485 @@
+use std::sync::Arc;
+
+use ::open_ai::Model as OpenAiModel;
+use anthropic::Model as AnthropicModel;
+use gpui::Pixels;
+use language_model::{CloudModel, LanguageModel};
+use ollama::Model as OllamaModel;
+use schemars::{schema::Schema, JsonSchema};
+use serde::{Deserialize, Serialize};
+use settings::{Settings, SettingsSources};
+
+#[derive(Copy, Clone, Default, Debug, Serialize, Deserialize, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum AssistantDockPosition {
+    Left,
+    #[default]
+    Right,
+    Bottom,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
+#[serde(tag = "name", rename_all = "snake_case")]
+pub enum AssistantProviderContentV1 {
+    #[serde(rename = "zed.dev")]
+    ZedDotDev { default_model: Option<CloudModel> },
+    #[serde(rename = "openai")]
+    OpenAi {
+        default_model: Option<OpenAiModel>,
+        api_url: Option<String>,
+        available_models: Option<Vec<OpenAiModel>>,
+    },
+    #[serde(rename = "anthropic")]
+    Anthropic {
+        default_model: Option<AnthropicModel>,
+        api_url: Option<String>,
+    },
+    #[serde(rename = "ollama")]
+    Ollama {
+        default_model: Option<OllamaModel>,
+        api_url: Option<String>,
+    },
+}
+
+#[derive(Debug, Default)]
+pub struct AssistantSettings {
+    pub enabled: bool,
+    pub button: bool,
+    pub dock: AssistantDockPosition,
+    pub default_width: Pixels,
+    pub default_height: Pixels,
+    pub default_model: LanguageModelSelection,
+    pub inline_alternatives: Vec<LanguageModelSelection>,
+    pub using_outdated_settings_version: bool,
+    pub enable_experimental_live_diffs: bool,
+}
+
+/// Assistant panel settings
+#[derive(Clone, Serialize, Deserialize, Debug)]
+#[serde(untagged)]
+pub enum AssistantSettingsContent {
+    Versioned(VersionedAssistantSettingsContent),
+    Legacy(LegacyAssistantSettingsContent),
+}
+
+impl JsonSchema for AssistantSettingsContent {
+    fn schema_name() -> String {
+        VersionedAssistantSettingsContent::schema_name()
+    }
+
+    fn json_schema(gen: &mut schemars::gen::SchemaGenerator) -> Schema {
+        VersionedAssistantSettingsContent::json_schema(gen)
+    }
+
+    fn is_referenceable() -> bool {
+        VersionedAssistantSettingsContent::is_referenceable()
+    }
+}
+
+impl Default for AssistantSettingsContent {
+    fn default() -> Self {
+        Self::Versioned(VersionedAssistantSettingsContent::default())
+    }
+}
+
+impl AssistantSettingsContent {
+    pub fn is_version_outdated(&self) -> bool {
+        match self {
+            AssistantSettingsContent::Versioned(settings) => match settings {
+                VersionedAssistantSettingsContent::V1(_) => true,
+                VersionedAssistantSettingsContent::V2(_) => false,
+            },
+            AssistantSettingsContent::Legacy(_) => true,
+        }
+    }
+
+    fn upgrade(&self) -> AssistantSettingsContentV2 {
+        match self {
+            AssistantSettingsContent::Versioned(settings) => match settings {
+                VersionedAssistantSettingsContent::V1(settings) => AssistantSettingsContentV2 {
+                    enabled: settings.enabled,
+                    button: settings.button,
+                    dock: settings.dock,
+                    default_width: settings.default_width,
+                    default_height: settings.default_width,
+                    default_model: settings
+                        .provider
+                        .clone()
+                        .and_then(|provider| match provider {
+                            AssistantProviderContentV1::ZedDotDev { default_model } => {
+                                default_model.map(|model| LanguageModelSelection {
+                                    provider: "zed.dev".to_string(),
+                                    model: model.id().to_string(),
+                                })
+                            }
+                            AssistantProviderContentV1::OpenAi { default_model, .. } => {
+                                default_model.map(|model| LanguageModelSelection {
+                                    provider: "openai".to_string(),
+                                    model: model.id().to_string(),
+                                })
+                            }
+                            AssistantProviderContentV1::Anthropic { default_model, .. } => {
+                                default_model.map(|model| LanguageModelSelection {
+                                    provider: "anthropic".to_string(),
+                                    model: model.id().to_string(),
+                                })
+                            }
+                            AssistantProviderContentV1::Ollama { default_model, .. } => {
+                                default_model.map(|model| LanguageModelSelection {
+                                    provider: "ollama".to_string(),
+                                    model: model.id().to_string(),
+                                })
+                            }
+                        }),
+                    inline_alternatives: None,
+                    enable_experimental_live_diffs: None,
+                },
+                VersionedAssistantSettingsContent::V2(settings) => settings.clone(),
+            },
+            AssistantSettingsContent::Legacy(settings) => AssistantSettingsContentV2 {
+                enabled: None,
+                button: settings.button,
+                dock: settings.dock,
+                default_width: settings.default_width,
+                default_height: settings.default_height,
+                default_model: Some(LanguageModelSelection {
+                    provider: "openai".to_string(),
+                    model: settings
+                        .default_open_ai_model
+                        .clone()
+                        .unwrap_or_default()
+                        .id()
+                        .to_string(),
+                }),
+                inline_alternatives: None,
+                enable_experimental_live_diffs: None,
+            },
+        }
+    }
+
+    pub fn set_model(&mut self, language_model: Arc<dyn LanguageModel>) {
+        let model = language_model.id().0.to_string();
+        let provider = language_model.provider_id().0.to_string();
+
+        match self {
+            AssistantSettingsContent::Versioned(settings) => match settings {
+                VersionedAssistantSettingsContent::V1(settings) => match provider.as_ref() {
+                    "zed.dev" => {
+                        log::warn!("attempted to set zed.dev model on outdated settings");
+                    }
+                    "anthropic" => {
+                        let api_url = match &settings.provider {
+                            Some(AssistantProviderContentV1::Anthropic { api_url, .. }) => {
+                                api_url.clone()
+                            }
+                            _ => None,
+                        };
+                        settings.provider = Some(AssistantProviderContentV1::Anthropic {
+                            default_model: AnthropicModel::from_id(&model).ok(),
+                            api_url,
+                        });
+                    }
+                    "ollama" => {
+                        let api_url = match &settings.provider {
+                            Some(AssistantProviderContentV1::Ollama { api_url, .. }) => {
+                                api_url.clone()
+                            }
+                            _ => None,
+                        };
+                        settings.provider = Some(AssistantProviderContentV1::Ollama {
+                            default_model: Some(ollama::Model::new(&model, None, None)),
+                            api_url,
+                        });
+                    }
+                    "openai" => {
+                        let (api_url, available_models) = match &settings.provider {
+                            Some(AssistantProviderContentV1::OpenAi {
+                                api_url,
+                                available_models,
+                                ..
+                            }) => (api_url.clone(), available_models.clone()),
+                            _ => (None, None),
+                        };
+                        settings.provider = Some(AssistantProviderContentV1::OpenAi {
+                            default_model: OpenAiModel::from_id(&model).ok(),
+                            api_url,
+                            available_models,
+                        });
+                    }
+                    _ => {}
+                },
+                VersionedAssistantSettingsContent::V2(settings) => {
+                    settings.default_model = Some(LanguageModelSelection { provider, model });
+                }
+            },
+            AssistantSettingsContent::Legacy(settings) => {
+                if let Ok(model) = OpenAiModel::from_id(&language_model.id().0) {
+                    settings.default_open_ai_model = Some(model);
+                }
+            }
+        }
+    }
+}
+
+#[derive(Clone, Serialize, Deserialize, JsonSchema, Debug)]
+#[serde(tag = "version")]
+pub enum VersionedAssistantSettingsContent {
+    #[serde(rename = "1")]
+    V1(AssistantSettingsContentV1),
+    #[serde(rename = "2")]
+    V2(AssistantSettingsContentV2),
+}
+
+impl Default for VersionedAssistantSettingsContent {
+    fn default() -> Self {
+        Self::V2(AssistantSettingsContentV2 {
+            enabled: None,
+            button: None,
+            dock: None,
+            default_width: None,
+            default_height: None,
+            default_model: None,
+            inline_alternatives: None,
+            enable_experimental_live_diffs: None,
+        })
+    }
+}
+
+#[derive(Clone, Serialize, Deserialize, JsonSchema, Debug)]
+pub struct AssistantSettingsContentV2 {
+    /// Whether the Assistant is enabled.
+    ///
+    /// Default: true
+    enabled: Option<bool>,
+    /// Whether to show the assistant panel button in the status bar.
+    ///
+    /// Default: true
+    button: Option<bool>,
+    /// Where to dock the assistant.
+    ///
+    /// Default: right
+    dock: Option<AssistantDockPosition>,
+    /// Default width in pixels when the assistant is docked to the left or right.
+    ///
+    /// Default: 640
+    default_width: Option<f32>,
+    /// Default height in pixels when the assistant is docked to the bottom.
+    ///
+    /// Default: 320
+    default_height: Option<f32>,
+    /// The default model to use when creating new chats.
+    default_model: Option<LanguageModelSelection>,
+    /// Additional models with which to generate alternatives when performing inline assists.
+    inline_alternatives: Option<Vec<LanguageModelSelection>>,
+    /// Enable experimental live diffs in the assistant panel.
+    ///
+    /// Default: false
+    enable_experimental_live_diffs: Option<bool>,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq)]
+pub struct LanguageModelSelection {
+    #[schemars(schema_with = "providers_schema")]
+    pub provider: String,
+    pub model: String,
+}
+
+fn providers_schema(_: &mut schemars::gen::SchemaGenerator) -> schemars::schema::Schema {
+    schemars::schema::SchemaObject {
+        enum_values: Some(vec![
+            "anthropic".into(),
+            "google".into(),
+            "ollama".into(),
+            "openai".into(),
+            "zed.dev".into(),
+            "copilot_chat".into(),
+        ]),
+        ..Default::default()
+    }
+    .into()
+}
+
+impl Default for LanguageModelSelection {
+    fn default() -> Self {
+        Self {
+            provider: "openai".to_string(),
+            model: "gpt-4".to_string(),
+        }
+    }
+}
+
+#[derive(Clone, Serialize, Deserialize, JsonSchema, Debug)]
+pub struct AssistantSettingsContentV1 {
+    /// Whether the Assistant is enabled.
+    ///
+    /// Default: true
+    enabled: Option<bool>,
+    /// Whether to show the assistant panel button in the status bar.
+    ///
+    /// Default: true
+    button: Option<bool>,
+    /// Where to dock the assistant.
+    ///
+    /// Default: right
+    dock: Option<AssistantDockPosition>,
+    /// Default width in pixels when the assistant is docked to the left or right.
+    ///
+    /// Default: 640
+    default_width: Option<f32>,
+    /// Default height in pixels when the assistant is docked to the bottom.
+    ///
+    /// Default: 320
+    default_height: Option<f32>,
+    /// The provider of the assistant service.
+    ///
+    /// This can be "openai", "anthropic", "ollama", "zed.dev"
+    /// each with their respective default models and configurations.
+    provider: Option<AssistantProviderContentV1>,
+}
+
+#[derive(Clone, Serialize, Deserialize, JsonSchema, Debug)]
+pub struct LegacyAssistantSettingsContent {
+    /// Whether to show the assistant panel button in the status bar.
+    ///
+    /// Default: true
+    pub button: Option<bool>,
+    /// Where to dock the assistant.
+    ///
+    /// Default: right
+    pub dock: Option<AssistantDockPosition>,
+    /// Default width in pixels when the assistant is docked to the left or right.
+    ///
+    /// Default: 640
+    pub default_width: Option<f32>,
+    /// Default height in pixels when the assistant is docked to the bottom.
+    ///
+    /// Default: 320
+    pub default_height: Option<f32>,
+    /// The default OpenAI model to use when creating new chats.
+    ///
+    /// Default: gpt-4-1106-preview
+    pub default_open_ai_model: Option<OpenAiModel>,
+    /// OpenAI API base URL to use when creating new chats.
+    ///
+    /// Default: https://api.openai.com/v1
+    pub openai_api_url: Option<String>,
+}
+
+impl Settings for AssistantSettings {
+    const KEY: Option<&'static str> = Some("assistant");
+
+    const PRESERVED_KEYS: Option<&'static [&'static str]> = Some(&["version"]);
+
+    type FileContent = AssistantSettingsContent;
+
+    fn load(
+        sources: SettingsSources<Self::FileContent>,
+        _: &mut gpui::AppContext,
+    ) -> anyhow::Result<Self> {
+        let mut settings = AssistantSettings::default();
+
+        for value in sources.defaults_and_customizations() {
+            if value.is_version_outdated() {
+                settings.using_outdated_settings_version = true;
+            }
+
+            let value = value.upgrade();
+            merge(&mut settings.enabled, value.enabled);
+            merge(&mut settings.button, value.button);
+            merge(&mut settings.dock, value.dock);
+            merge(
+                &mut settings.default_width,
+                value.default_width.map(Into::into),
+            );
+            merge(
+                &mut settings.default_height,
+                value.default_height.map(Into::into),
+            );
+            merge(&mut settings.default_model, value.default_model);
+            merge(&mut settings.inline_alternatives, value.inline_alternatives);
+            merge(
+                &mut settings.enable_experimental_live_diffs,
+                value.enable_experimental_live_diffs,
+            );
+        }
+
+        Ok(settings)
+    }
+}
+
+fn merge<T>(target: &mut T, value: Option<T>) {
+    if let Some(value) = value {
+        *target = value;
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use fs::Fs;
+    use gpui::{ReadGlobal, TestAppContext};
+
+    use super::*;
+
+    #[gpui::test]
+    async fn test_deserialize_assistant_settings_with_version(cx: &mut TestAppContext) {
+        let fs = fs::FakeFs::new(cx.executor().clone());
+        fs.create_dir(paths::settings_file().parent().unwrap())
+            .await
+            .unwrap();
+
+        cx.update(|cx| {
+            let test_settings = settings::SettingsStore::test(cx);
+            cx.set_global(test_settings);
+            AssistantSettings::register(cx);
+        });
+
+        cx.update(|cx| {
+            assert!(!AssistantSettings::get_global(cx).using_outdated_settings_version);
+            assert_eq!(
+                AssistantSettings::get_global(cx).default_model,
+                LanguageModelSelection {
+                    provider: "zed.dev".into(),
+                    model: "claude-3-5-sonnet".into(),
+                }
+            );
+        });
+
+        cx.update(|cx| {
+            settings::SettingsStore::global(cx).update_settings_file::<AssistantSettings>(
+                fs.clone(),
+                |settings, _| {
+                    *settings = AssistantSettingsContent::Versioned(
+                        VersionedAssistantSettingsContent::V2(AssistantSettingsContentV2 {
+                            default_model: Some(LanguageModelSelection {
+                                provider: "test-provider".into(),
+                                model: "gpt-99".into(),
+                            }),
+                            inline_alternatives: None,
+                            enabled: None,
+                            button: None,
+                            dock: None,
+                            default_width: None,
+                            default_height: None,
+                            enable_experimental_live_diffs: None,
+                        }),
+                    )
+                },
+            );
+        });
+
+        cx.run_until_parked();
+
+        let raw_settings_value = fs.load(paths::settings_file()).await.unwrap();
+        assert!(raw_settings_value.contains(r#""version": "2""#));
+
+        #[derive(Debug, Deserialize)]
+        struct AssistantSettingsTest {
+            assistant: AssistantSettingsContent,
+        }
+
+        let assistant_settings: AssistantSettingsTest =
+            serde_json_lenient::from_str(&raw_settings_value).unwrap();
+
+        assert!(!assistant_settings.assistant.is_version_outdated());
+    }
+}
--- a/crates/assistant2/src/context.rs
+++ b/crates/assistant2/src/context.rs
@@ -0,0 +1,27 @@
+use gpui::SharedString;
+use serde::{Deserialize, Serialize};
+use util::post_inc;
+
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Serialize, Deserialize)]
+pub struct ContextId(pub(crate) usize);
+
+impl ContextId {
+    pub fn post_inc(&mut self) -> Self {
+        Self(post_inc(&mut self.0))
+    }
+}
+
+/// Some context attached to a message in a thread.
+#[derive(Debug, Clone)]
+pub struct Context {
+    pub id: ContextId,
+    pub name: SharedString,
+    pub kind: ContextKind,
+    pub text: SharedString,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub enum ContextKind {
+    File,
+    FetchedUrl,
+}
--- a/crates/assistant2/src/context_picker.rs
+++ b/crates/assistant2/src/context_picker.rs
@@ -0,0 +1,227 @@
+mod fetch_context_picker;
+mod file_context_picker;
+
+use std::sync::Arc;
+
+use gpui::{
+    AppContext, DismissEvent, EventEmitter, FocusHandle, FocusableView, SharedString, Task, View,
+    WeakView,
+};
+use picker::{Picker, PickerDelegate};
+use ui::{prelude::*, ListItem, ListItemSpacing, Tooltip};
+use util::ResultExt;
+use workspace::Workspace;
+
+use crate::context_picker::fetch_context_picker::FetchContextPicker;
+use crate::context_picker::file_context_picker::FileContextPicker;
+use crate::message_editor::MessageEditor;
+
+#[derive(Debug, Clone)]
+enum ContextPickerMode {
+    Default,
+    File(View<FileContextPicker>),
+    Fetch(View<FetchContextPicker>),
+}
+
+pub(super) struct ContextPicker {
+    mode: ContextPickerMode,
+    picker: View<Picker<ContextPickerDelegate>>,
+}
+
+impl ContextPicker {
+    pub fn new(
+        workspace: WeakView<Workspace>,
+        message_editor: WeakView<MessageEditor>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        let delegate = ContextPickerDelegate {
+            context_picker: cx.view().downgrade(),
+            workspace: workspace.clone(),
+            message_editor: message_editor.clone(),
+            entries: vec![
+                ContextPickerEntry {
+                    name: "directory".into(),
+                    description: "Insert any directory".into(),
+                    icon: IconName::Folder,
+                },
+                ContextPickerEntry {
+                    name: "file".into(),
+                    description: "Insert any file".into(),
+                    icon: IconName::File,
+                },
+                ContextPickerEntry {
+                    name: "fetch".into(),
+                    description: "Fetch content from URL".into(),
+                    icon: IconName::Globe,
+                },
+            ],
+            selected_ix: 0,
+        };
+
+        let picker = cx.new_view(|cx| {
+            Picker::nonsearchable_uniform_list(delegate, cx).max_height(Some(rems(20.).into()))
+        });
+
+        ContextPicker {
+            mode: ContextPickerMode::Default,
+            picker,
+        }
+    }
+
+    pub fn reset_mode(&mut self) {
+        self.mode = ContextPickerMode::Default;
+    }
+}
+
+impl EventEmitter<DismissEvent> for ContextPicker {}
+
+impl FocusableView for ContextPicker {
+    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+        match &self.mode {
+            ContextPickerMode::Default => self.picker.focus_handle(cx),
+            ContextPickerMode::File(file_picker) => file_picker.focus_handle(cx),
+            ContextPickerMode::Fetch(fetch_picker) => fetch_picker.focus_handle(cx),
+        }
+    }
+}
+
+impl Render for ContextPicker {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        v_flex()
+            .w(px(400.))
+            .min_w(px(400.))
+            .map(|parent| match &self.mode {
+                ContextPickerMode::Default => parent.child(self.picker.clone()),
+                ContextPickerMode::File(file_picker) => parent.child(file_picker.clone()),
+                ContextPickerMode::Fetch(fetch_picker) => parent.child(fetch_picker.clone()),
+            })
+    }
+}
+
+#[derive(Clone)]
+struct ContextPickerEntry {
+    name: SharedString,
+    description: SharedString,
+    icon: IconName,
+}
+
+pub(crate) struct ContextPickerDelegate {
+    context_picker: WeakView<ContextPicker>,
+    workspace: WeakView<Workspace>,
+    message_editor: WeakView<MessageEditor>,
+    entries: Vec<ContextPickerEntry>,
+    selected_ix: usize,
+}
+
+impl PickerDelegate for ContextPickerDelegate {
+    type ListItem = ListItem;
+
+    fn match_count(&self) -> usize {
+        self.entries.len()
+    }
+
+    fn selected_index(&self) -> usize {
+        self.selected_ix
+    }
+
+    fn set_selected_index(&mut self, ix: usize, cx: &mut ViewContext<Picker<Self>>) {
+        self.selected_ix = ix.min(self.entries.len().saturating_sub(1));
+        cx.notify();
+    }
+
+    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+        "Select a context source…".into()
+    }
+
+    fn update_matches(&mut self, _query: String, _cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
+        Task::ready(())
+    }
+
+    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+        if let Some(entry) = self.entries.get(self.selected_ix) {
+            self.context_picker
+                .update(cx, |this, cx| {
+                    match entry.name.to_string().as_str() {
+                        "file" => {
+                            this.mode = ContextPickerMode::File(cx.new_view(|cx| {
+                                FileContextPicker::new(
+                                    self.context_picker.clone(),
+                                    self.workspace.clone(),
+                                    self.message_editor.clone(),
+                                    cx,
+                                )
+                            }));
+                        }
+                        "fetch" => {
+                            this.mode = ContextPickerMode::Fetch(cx.new_view(|cx| {
+                                FetchContextPicker::new(
+                                    self.context_picker.clone(),
+                                    self.workspace.clone(),
+                                    self.message_editor.clone(),
+                                    cx,
+                                )
+                            }));
+                        }
+                        _ => {}
+                    }
+
+                    cx.focus_self();
+                })
+                .log_err();
+        }
+    }
+
+    fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
+        self.context_picker
+            .update(cx, |this, cx| match this.mode {
+                ContextPickerMode::Default => cx.emit(DismissEvent),
+                ContextPickerMode::File(_) | ContextPickerMode::Fetch(_) => {}
+            })
+            .log_err();
+    }
+
+    fn render_match(
+        &self,
+        ix: usize,
+        selected: bool,
+        _cx: &mut ViewContext<Picker<Self>>,
+    ) -> Option<Self::ListItem> {
+        let entry = &self.entries[ix];
+
+        Some(
+            ListItem::new(ix)
+                .inset(true)
+                .spacing(ListItemSpacing::Dense)
+                .toggle_state(selected)
+                .tooltip({
+                    let description = entry.description.clone();
+                    move |cx| cx.new_view(|_cx| Tooltip::new(description.clone())).into()
+                })
+                .child(
+                    v_flex()
+                        .group(format!("context-entry-label-{ix}"))
+                        .w_full()
+                        .py_0p5()
+                        .min_w(px(250.))
+                        .max_w(px(400.))
+                        .child(
+                            h_flex()
+                                .gap_1p5()
+                                .child(Icon::new(entry.icon).size(IconSize::XSmall))
+                                .child(
+                                    Label::new(entry.name.clone())
+                                        .single_line()
+                                        .size(LabelSize::Small),
+                                ),
+                        )
+                        .child(
+                            div().overflow_hidden().text_ellipsis().child(
+                                Label::new(entry.description.clone())
+                                    .size(LabelSize::Small)
+                                    .color(Color::Muted),
+                            ),
+                        ),
+                ),
+        )
+    }
+}
--- a/crates/assistant2/src/context_picker/fetch_context_picker.rs
+++ b/crates/assistant2/src/context_picker/fetch_context_picker.rs
@@ -0,0 +1,218 @@
+use std::cell::RefCell;
+use std::rc::Rc;
+use std::sync::Arc;
+
+use anyhow::{bail, Context as _, Result};
+use futures::AsyncReadExt as _;
+use gpui::{AppContext, DismissEvent, FocusHandle, FocusableView, Task, View, WeakView};
+use html_to_markdown::{convert_html_to_markdown, markdown, TagHandler};
+use http_client::{AsyncBody, HttpClientWithUrl};
+use picker::{Picker, PickerDelegate};
+use ui::{prelude::*, ListItem, ListItemSpacing, ViewContext};
+use workspace::Workspace;
+
+use crate::context::ContextKind;
+use crate::context_picker::ContextPicker;
+use crate::message_editor::MessageEditor;
+
+pub struct FetchContextPicker {
+    picker: View<Picker<FetchContextPickerDelegate>>,
+}
+
+impl FetchContextPicker {
+    pub fn new(
+        context_picker: WeakView<ContextPicker>,
+        workspace: WeakView<Workspace>,
+        message_editor: WeakView<MessageEditor>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        let delegate = FetchContextPickerDelegate::new(context_picker, workspace, message_editor);
+        let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
+
+        Self { picker }
+    }
+}
+
+impl FocusableView for FetchContextPicker {
+    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+        self.picker.focus_handle(cx)
+    }
+}
+
+impl Render for FetchContextPicker {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        self.picker.clone()
+    }
+}
+
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy)]
+enum ContentType {
+    Html,
+    Plaintext,
+    Json,
+}
+
+pub struct FetchContextPickerDelegate {
+    context_picker: WeakView<ContextPicker>,
+    workspace: WeakView<Workspace>,
+    message_editor: WeakView<MessageEditor>,
+    url: String,
+}
+
+impl FetchContextPickerDelegate {
+    pub fn new(
+        context_picker: WeakView<ContextPicker>,
+        workspace: WeakView<Workspace>,
+        message_editor: WeakView<MessageEditor>,
+    ) -> Self {
+        FetchContextPickerDelegate {
+            context_picker,
+            workspace,
+            message_editor,
+            url: String::new(),
+        }
+    }
+
+    async fn build_message(http_client: Arc<HttpClientWithUrl>, url: &str) -> Result<String> {
+        let mut url = url.to_owned();
+        if !url.starts_with("https://") && !url.starts_with("http://") {
+            url = format!("https://{url}");
+        }
+
+        let mut response = http_client.get(&url, AsyncBody::default(), true).await?;
+
+        let mut body = Vec::new();
+        response
+            .body_mut()
+            .read_to_end(&mut body)
+            .await
+            .context("error reading response body")?;
+
+        if response.status().is_client_error() {
+            let text = String::from_utf8_lossy(body.as_slice());
+            bail!(
+                "status error {}, response: {text:?}",
+                response.status().as_u16()
+            );
+        }
+
+        let Some(content_type) = response.headers().get("content-type") else {
+            bail!("missing Content-Type header");
+        };
+        let content_type = content_type
+            .to_str()
+            .context("invalid Content-Type header")?;
+        let content_type = match content_type {
+            "text/html" => ContentType::Html,
+            "text/plain" => ContentType::Plaintext,
+            "application/json" => ContentType::Json,
+            _ => ContentType::Html,
+        };
+
+        match content_type {
+            ContentType::Html => {
+                let mut handlers: Vec<TagHandler> = vec![
+                    Rc::new(RefCell::new(markdown::WebpageChromeRemover)),
+                    Rc::new(RefCell::new(markdown::ParagraphHandler)),
+                    Rc::new(RefCell::new(markdown::HeadingHandler)),
+                    Rc::new(RefCell::new(markdown::ListHandler)),
+                    Rc::new(RefCell::new(markdown::TableHandler::new())),
+                    Rc::new(RefCell::new(markdown::StyledTextHandler)),
+                ];
+                if url.contains("wikipedia.org") {
+                    use html_to_markdown::structure::wikipedia;
+
+                    handlers.push(Rc::new(RefCell::new(wikipedia::WikipediaChromeRemover)));
+                    handlers.push(Rc::new(RefCell::new(wikipedia::WikipediaInfoboxHandler)));
+                    handlers.push(Rc::new(
+                        RefCell::new(wikipedia::WikipediaCodeHandler::new()),
+                    ));
+                } else {
+                    handlers.push(Rc::new(RefCell::new(markdown::CodeHandler)));
+                }
+
+                convert_html_to_markdown(&body[..], &mut handlers)
+            }
+            ContentType::Plaintext => Ok(std::str::from_utf8(&body)?.to_owned()),
+            ContentType::Json => {
+                let json: serde_json::Value = serde_json::from_slice(&body)?;
+
+                Ok(format!(
+                    "```json\n{}\n```",
+                    serde_json::to_string_pretty(&json)?
+                ))
+            }
+        }
+    }
+}
+
+impl PickerDelegate for FetchContextPickerDelegate {
+    type ListItem = ListItem;
+
+    fn match_count(&self) -> usize {
+        1
+    }
+
+    fn selected_index(&self) -> usize {
+        0
+    }
+
+    fn set_selected_index(&mut self, _ix: usize, _cx: &mut ViewContext<Picker<Self>>) {}
+
+    fn placeholder_text(&self, _cx: &mut ui::WindowContext) -> Arc<str> {
+        "Enter a URL…".into()
+    }
+
+    fn update_matches(&mut self, query: String, _cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
+        self.url = query;
+
+        Task::ready(())
+    }
+
+    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+        let Some(workspace) = self.workspace.upgrade() else {
+            return;
+        };
+
+        let http_client = workspace.read(cx).client().http_client().clone();
+        let url = self.url.clone();
+        cx.spawn(|this, mut cx| async move {
+            let text = Self::build_message(http_client, &url).await?;
+
+            this.update(&mut cx, |this, cx| {
+                this.delegate
+                    .message_editor
+                    .update(cx, |message_editor, _cx| {
+                        message_editor.insert_context(ContextKind::FetchedUrl, url, text);
+                    })
+            })??;
+
+            anyhow::Ok(())
+        })
+        .detach_and_log_err(cx);
+    }
+
+    fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
+        self.context_picker
+            .update(cx, |this, cx| {
+                this.reset_mode();
+                cx.emit(DismissEvent);
+            })
+            .ok();
+    }
+
+    fn render_match(
+        &self,
+        ix: usize,
+        selected: bool,
+        _cx: &mut ViewContext<Picker<Self>>,
+    ) -> Option<Self::ListItem> {
+        Some(
+            ListItem::new(ix)
+                .inset(true)
+                .spacing(ListItemSpacing::Sparse)
+                .toggle_state(selected)
+                .child(self.url.clone()),
+        )
+    }
+}
--- a/crates/assistant2/src/context_picker/file_context_picker.rs
+++ b/crates/assistant2/src/context_picker/file_context_picker.rs
@@ -0,0 +1,289 @@
+use std::fmt::Write as _;
+use std::ops::RangeInclusive;
+use std::path::{Path, PathBuf};
+use std::sync::atomic::AtomicBool;
+use std::sync::Arc;
+
+use fuzzy::PathMatch;
+use gpui::{AppContext, DismissEvent, FocusHandle, FocusableView, Task, View, WeakView};
+use picker::{Picker, PickerDelegate};
+use project::{PathMatchCandidateSet, WorktreeId};
+use ui::{prelude::*, ListItem, ListItemSpacing};
+use util::ResultExt as _;
+use workspace::Workspace;
+
+use crate::context::ContextKind;
+use crate::context_picker::ContextPicker;
+use crate::message_editor::MessageEditor;
+
+pub struct FileContextPicker {
+    picker: View<Picker<FileContextPickerDelegate>>,
+}
+
+impl FileContextPicker {
+    pub fn new(
+        context_picker: WeakView<ContextPicker>,
+        workspace: WeakView<Workspace>,
+        message_editor: WeakView<MessageEditor>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        let delegate = FileContextPickerDelegate::new(context_picker, workspace, message_editor);
+        let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
+
+        Self { picker }
+    }
+}
+
+impl FocusableView for FileContextPicker {
+    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+        self.picker.focus_handle(cx)
+    }
+}
+
+impl Render for FileContextPicker {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        self.picker.clone()
+    }
+}
+
+pub struct FileContextPickerDelegate {
+    context_picker: WeakView<ContextPicker>,
+    workspace: WeakView<Workspace>,
+    message_editor: WeakView<MessageEditor>,
+    matches: Vec<PathMatch>,
+    selected_index: usize,
+}
+
+impl FileContextPickerDelegate {
+    pub fn new(
+        context_picker: WeakView<ContextPicker>,
+        workspace: WeakView<Workspace>,
+        message_editor: WeakView<MessageEditor>,
+    ) -> Self {
+        Self {
+            context_picker,
+            workspace,
+            message_editor,
+            matches: Vec::new(),
+            selected_index: 0,
+        }
+    }
+
+    fn search(
+        &mut self,
+        query: String,
+        cancellation_flag: Arc<AtomicBool>,
+        workspace: &View<Workspace>,
+        cx: &mut ViewContext<Picker<Self>>,
+    ) -> Task<Vec<PathMatch>> {
+        if query.is_empty() {
+            let workspace = workspace.read(cx);
+            let project = workspace.project().read(cx);
+            let entries = workspace.recent_navigation_history(Some(10), cx);
+
+            let entries = entries
+                .into_iter()
+                .map(|entries| entries.0)
+                .chain(project.worktrees(cx).flat_map(|worktree| {
+                    let worktree = worktree.read(cx);
+                    let id = worktree.id();
+                    worktree
+                        .child_entries(Path::new(""))
+                        .filter(|entry| entry.kind.is_file())
+                        .map(move |entry| project::ProjectPath {
+                            worktree_id: id,
+                            path: entry.path.clone(),
+                        })
+                }))
+                .collect::<Vec<_>>();
+
+            let path_prefix: Arc<str> = Arc::default();
+            Task::ready(
+                entries
+                    .into_iter()
+                    .filter_map(|entry| {
+                        let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
+                        let mut full_path = PathBuf::from(worktree.read(cx).root_name());
+                        full_path.push(&entry.path);
+                        Some(PathMatch {
+                            score: 0.,
+                            positions: Vec::new(),
+                            worktree_id: entry.worktree_id.to_usize(),
+                            path: full_path.into(),
+                            path_prefix: path_prefix.clone(),
+                            distance_to_relative_ancestor: 0,
+                            is_dir: false,
+                        })
+                    })
+                    .collect(),
+            )
+        } else {
+            let worktrees = workspace.read(cx).visible_worktrees(cx).collect::<Vec<_>>();
+            let candidate_sets = worktrees
+                .into_iter()
+                .map(|worktree| {
+                    let worktree = worktree.read(cx);
+
+                    PathMatchCandidateSet {
+                        snapshot: worktree.snapshot(),
+                        include_ignored: worktree
+                            .root_entry()
+                            .map_or(false, |entry| entry.is_ignored),
+                        include_root_name: true,
+                        candidates: project::Candidates::Files,
+                    }
+                })
+                .collect::<Vec<_>>();
+
+            let executor = cx.background_executor().clone();
+            cx.foreground_executor().spawn(async move {
+                fuzzy::match_path_sets(
+                    candidate_sets.as_slice(),
+                    query.as_str(),
+                    None,
+                    false,
+                    100,
+                    &cancellation_flag,
+                    executor,
+                )
+                .await
+            })
+        }
+    }
+}
+
+impl PickerDelegate for FileContextPickerDelegate {
+    type ListItem = ListItem;
+
+    fn match_count(&self) -> usize {
+        self.matches.len()
+    }
+
+    fn selected_index(&self) -> usize {
+        self.selected_index
+    }
+
+    fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
+        self.selected_index = ix;
+    }
+
+    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+        "Search files…".into()
+    }
+
+    fn update_matches(&mut self, query: String, cx: &mut ViewContext<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 {
+            // TODO: This should be probably be run in the background.
+            let paths = search_task.await;
+
+            this.update(&mut cx, |this, _cx| {
+                this.delegate.matches = paths;
+            })
+            .log_err();
+        })
+    }
+
+    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+        let mat = &self.matches[self.selected_index];
+
+        let workspace = self.workspace.clone();
+        let Some(project) = workspace
+            .upgrade()
+            .map(|workspace| workspace.read(cx).project().clone())
+        else {
+            return;
+        };
+        let path = mat.path.clone();
+        let worktree_id = WorktreeId::from_usize(mat.worktree_id);
+        cx.spawn(|this, mut cx| async move {
+            let Some(open_buffer_task) = project
+                .update(&mut cx, |project, cx| {
+                    project.open_buffer((worktree_id, path.clone()), cx)
+                })
+                .ok()
+            else {
+                return anyhow::Ok(());
+            };
+
+            let buffer = open_buffer_task.await?;
+
+            this.update(&mut cx, |this, cx| {
+                this.delegate
+                    .message_editor
+                    .update(cx, |message_editor, cx| {
+                        let mut text = String::new();
+                        text.push_str(&codeblock_fence_for_path(Some(&path), None));
+                        text.push_str(&buffer.read(cx).text());
+                        if !text.ends_with('\n') {
+                            text.push('\n');
+                        }
+
+                        text.push_str("```\n");
+
+                        message_editor.insert_context(
+                            ContextKind::File,
+                            path.to_string_lossy().to_string(),
+                            text,
+                        );
+                    })
+            })??;
+
+            anyhow::Ok(())
+        })
+        .detach_and_log_err(cx);
+    }
+
+    fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
+        self.context_picker
+            .update(cx, |this, cx| {
+                this.reset_mode();
+                cx.emit(DismissEvent);
+            })
+            .ok();
+    }
+
+    fn render_match(
+        &self,
+        ix: usize,
+        selected: bool,
+        _cx: &mut ViewContext<Picker<Self>>,
+    ) -> Option<Self::ListItem> {
+        let mat = &self.matches[ix];
+
+        Some(
+            ListItem::new(ix)
+                .inset(true)
+                .spacing(ListItemSpacing::Sparse)
+                .toggle_state(selected)
+                .child(mat.path.to_string_lossy().to_string()),
+        )
+    }
+}
+
+fn codeblock_fence_for_path(path: Option<&Path>, row_range: Option<RangeInclusive<u32>>) -> String {
+    let mut text = String::new();
+    write!(text, "```").unwrap();
+
+    if let Some(path) = path {
+        if let Some(extension) = path.extension().and_then(|ext| ext.to_str()) {
+            write!(text, "{} ", extension).unwrap();
+        }
+
+        write!(text, "{}", path.display()).unwrap();
+    } else {
+        write!(text, "untitled").unwrap();
+    }
+
+    if let Some(row_range) = row_range {
+        write!(text, ":{}-{}", row_range.start() + 1, row_range.end() + 1).unwrap();
+    }
+
+    text.push('\n');
+    text
+}
--- a/crates/assistant2/src/inline_assistant.rs
+++ b/crates/assistant2/src/inline_assistant.rs
--- a/crates/assistant2/src/message_editor.rs
+++ b/crates/assistant2/src/message_editor.rs
@@ -1,33 +1,79 @@
+use std::rc::Rc;
+
 use editor::{Editor, EditorElement, EditorStyle};
-use gpui::{AppContext, FocusableView, Model, TextStyle, View};
+use gpui::{AppContext, FocusableView, Model, TextStyle, View, WeakView};
 use language_model::{LanguageModelRegistry, LanguageModelRequestTool};
+use language_model_selector::{LanguageModelSelector, LanguageModelSelectorPopoverMenu};
 use settings::Settings;
 use theme::ThemeSettings;
-use ui::{prelude::*, ButtonLike, CheckboxWithLabel, ElevationIndex, KeyBinding};
+use ui::{
+    prelude::*, ButtonLike, CheckboxWithLabel, ElevationIndex, IconButtonShape, KeyBinding,
+    PopoverMenu, PopoverMenuHandle, Tooltip,
+};
+use workspace::Workspace;

+use crate::context::{Context, ContextId, ContextKind};
+use crate::context_picker::ContextPicker;
 use crate::thread::{RequestKind, Thread};
-use crate::Chat;
+use crate::ui::ContextPill;
+use crate::{Chat, ToggleModelSelector};

 pub struct MessageEditor {
    thread: Model<Thread>,
    editor: View<Editor>,
+    context: Vec<Context>,
+    next_context_id: ContextId,
+    context_picker: View<ContextPicker>,
+    pub(crate) context_picker_handle: PopoverMenuHandle<ContextPicker>,
+    language_model_selector: View<LanguageModelSelector>,
    use_tools: bool,
 }

 impl MessageEditor {
-    pub fn new(thread: Model<Thread>, cx: &mut ViewContext<Self>) -> Self {
+    pub fn new(
+        workspace: WeakView<Workspace>,
+        thread: Model<Thread>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        let weak_self = cx.view().downgrade();
        Self {
            thread,
            editor: cx.new_view(|cx| {
                let mut editor = Editor::auto_height(80, cx);
-                editor.set_placeholder_text("Ask anything…", cx);
+                editor.set_placeholder_text("Ask anything or type @ to add context", cx);

                editor
            }),
+            context: Vec::new(),
+            next_context_id: ContextId(0),
+            context_picker: cx.new_view(|cx| ContextPicker::new(workspace.clone(), weak_self, cx)),
+            context_picker_handle: PopoverMenuHandle::default(),
+            language_model_selector: cx.new_view(|cx| {
+                LanguageModelSelector::new(
+                    |model, _cx| {
+                        println!("Selected {:?}", model.name());
+                    },
+                    cx,
+                )
+            }),
            use_tools: false,
        }
    }

+    pub fn insert_context(
+        &mut self,
+        kind: ContextKind,
+        name: impl Into<SharedString>,
+        text: impl Into<SharedString>,
+    ) {
+        self.context.push(Context {
+            id: self.next_context_id.post_inc(),
+            name: name.into(),
+            kind,
+            text: text.into(),
+        });
+    }
+
    fn chat(&mut self, _: &Chat, cx: &mut ViewContext<Self>) {
        self.send_to_model(RequestKind::Chat, cx);
    }
@@ -54,9 +100,10 @@ impl MessageEditor {
            editor.clear(cx);
            text
        });
+        let context = self.context.drain(..).collect::<Vec<_>>();

        self.thread.update(cx, |thread, cx| {
-            thread.insert_user_message(user_message, cx);
+            thread.insert_user_message(user_message, context, cx);
            let mut request = thread.to_completion_request(request_kind, cx);

            if self.use_tools {
@@ -77,6 +124,55 @@ impl MessageEditor {

        None
    }
+
+    fn render_language_model_selector(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+        let active_provider = LanguageModelRegistry::read_global(cx).active_provider();
+        let active_model = LanguageModelRegistry::read_global(cx).active_model();
+
+        LanguageModelSelectorPopoverMenu::new(
+            self.language_model_selector.clone(),
+            ButtonLike::new("active-model")
+                .style(ButtonStyle::Subtle)
+                .child(
+                    h_flex()
+                        .w_full()
+                        .gap_0p5()
+                        .child(
+                            div()
+                                .overflow_x_hidden()
+                                .flex_grow()
+                                .whitespace_nowrap()
+                                .child(match (active_provider, active_model) {
+                                    (Some(provider), Some(model)) => h_flex()
+                                        .gap_1()
+                                        .child(
+                                            Icon::new(
+                                                model.icon().unwrap_or_else(|| provider.icon()),
+                                            )
+                                            .color(Color::Muted)
+                                            .size(IconSize::XSmall),
+                                        )
+                                        .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(),
+                                }),
+                        )
+                        .child(
+                            Icon::new(IconName::ChevronDown)
+                                .color(Color::Muted)
+                                .size(IconSize::XSmall),
+                        ),
+                )
+                .tooltip(move |cx| Tooltip::for_action("Change Model", &ToggleModelSelector, cx)),
+        )
+    }
 }

 impl FocusableView for MessageEditor {
@@ -90,6 +186,7 @@ impl Render for MessageEditor {
        let font_size = TextSize::Default.rems(cx);
        let line_height = font_size.to_pixels(cx.rem_size()) * 1.3;
        let focus_handle = self.editor.focus_handle(cx);
+        let context_picker = self.context_picker.clone();

        v_flex()
            .key_context("MessageEditor")
@@ -98,6 +195,48 @@ impl Render for MessageEditor {
            .gap_2()
            .p_2()
            .bg(cx.theme().colors().editor_background)
+            .child(
+                h_flex()
+                    .flex_wrap()
+                    .gap_2()
+                    .child(
+                        PopoverMenu::new("context-picker")
+                            .menu(move |_cx| Some(context_picker.clone()))
+                            .trigger(
+                                IconButton::new("add-context", IconName::Plus)
+                                    .shape(IconButtonShape::Square)
+                                    .icon_size(IconSize::Small),
+                            )
+                            .attach(gpui::AnchorCorner::TopLeft)
+                            .anchor(gpui::AnchorCorner::BottomLeft)
+                            .offset(gpui::Point {
+                                x: px(0.0),
+                                y: px(-16.0),
+                            })
+                            .with_handle(self.context_picker_handle.clone()),
+                    )
+                    .children(self.context.iter().map(|context| {
+                        ContextPill::new(context.clone()).on_remove({
+                            let context = context.clone();
+                            Rc::new(cx.listener(move |this, _event, cx| {
+                                this.context.retain(|other| other.id != context.id);
+                                cx.notify();
+                            }))
+                        })
+                    }))
+                    .when(!self.context.is_empty(), |parent| {
+                        parent.child(
+                            IconButton::new("remove-all-context", IconName::Eraser)
+                                .shape(IconButtonShape::Square)
+                                .icon_size(IconSize::Small)
+                                .tooltip(move |cx| Tooltip::text("Remove All Context", cx))
+                                .on_click(cx.listener(|this, _event, cx| {
+                                    this.context.clear();
+                                    cx.notify();
+                                })),
+                        )
+                    }),
+            )
            .child({
                let settings = ThemeSettings::get_global(cx);
                let text_style = TextStyle {
@@ -123,36 +262,26 @@ impl Render for MessageEditor {
            .child(
                h_flex()
                    .justify_between()
-                    .child(
-                        h_flex()
-                            .child(
-                                Button::new("add-context", "Add Context")
-                                    .style(ButtonStyle::Filled)
-                                    .icon(IconName::Plus)
-                                    .icon_position(IconPosition::Start),
-                            )
-                            .child(CheckboxWithLabel::new(
-                                "use-tools",
-                                Label::new("Tools"),
-                                self.use_tools.into(),
-                                cx.listener(|this, selection, _cx| {
-                                    this.use_tools = match selection {
-                                        Selection::Selected => true,
-                                        Selection::Unselected | Selection::Indeterminate => false,
-                                    };
-                                }),
-                            )),
-                    )
+                    .child(h_flex().gap_2().child(CheckboxWithLabel::new(
+                        "use-tools",
+                        Label::new("Tools"),
+                        self.use_tools.into(),
+                        cx.listener(|this, selection, _cx| {
+                            this.use_tools = match selection {
+                                ToggleState::Selected => true,
+                                ToggleState::Unselected | ToggleState::Indeterminate => false,
+                            };
+                        }),
+                    )))
                    .child(
                        h_flex()
                            .gap_2()
-                            .child(Button::new("codebase", "Codebase").style(ButtonStyle::Filled))
-                            .child(Label::new("or"))
+                            .child(self.render_language_model_selector(cx))
                            .child(
                                ButtonLike::new("chat")
                                    .style(ButtonStyle::Filled)
                                    .layer(ElevationIndex::ModalSurface)
-                                    .child(Label::new("Chat"))
+                                    .child(Label::new("Submit"))
                                    .children(
                                        KeyBinding::for_action_in(&Chat, &focus_handle, cx)
                                            .map(|binding| binding.into_any_element()),
--- a/crates/assistant2/src/prompts.rs
+++ b/crates/assistant2/src/prompts.rs
@@ -0,0 +1,312 @@
+use anyhow::Result;
+use assets::Assets;
+use fs::Fs;
+use futures::StreamExt;
+use gpui::AssetSource;
+use handlebars::{Handlebars, RenderError};
+use language::{BufferSnapshot, LanguageName, Point};
+use parking_lot::Mutex;
+use serde::Serialize;
+use std::{ops::Range, path::PathBuf, sync::Arc, time::Duration};
+use text::LineEnding;
+use util::ResultExt;
+
+#[derive(Serialize)]
+pub struct ContentPromptDiagnosticContext {
+    pub line_number: usize,
+    pub error_message: String,
+    pub code_content: String,
+}
+
+#[derive(Serialize)]
+pub struct ContentPromptContext {
+    pub content_type: String,
+    pub language_name: Option<String>,
+    pub is_insert: bool,
+    pub is_truncated: bool,
+    pub document_content: String,
+    pub user_prompt: String,
+    pub rewrite_section: Option<String>,
+    pub diagnostic_errors: Vec<ContentPromptDiagnosticContext>,
+}
+
+#[derive(Serialize)]
+pub struct TerminalAssistantPromptContext {
+    pub os: String,
+    pub arch: String,
+    pub shell: Option<String>,
+    pub working_directory: Option<String>,
+    pub latest_output: Vec<String>,
+    pub user_prompt: String,
+}
+
+#[derive(Serialize)]
+pub struct ProjectSlashCommandPromptContext {
+    pub context_buffer: String,
+}
+
+pub struct PromptLoadingParams<'a> {
+    pub fs: Arc<dyn Fs>,
+    pub repo_path: Option<PathBuf>,
+    pub cx: &'a gpui::AppContext,
+}
+
+pub struct PromptBuilder {
+    handlebars: Arc<Mutex<Handlebars<'static>>>,
+}
+
+impl PromptBuilder {
+    pub fn new(loading_params: Option<PromptLoadingParams>) -> Result<Self> {
+        let mut handlebars = Handlebars::new();
+        Self::register_built_in_templates(&mut handlebars)?;
+
+        let handlebars = Arc::new(Mutex::new(handlebars));
+
+        if let Some(params) = loading_params {
+            Self::watch_fs_for_template_overrides(params, handlebars.clone());
+        }
+
+        Ok(Self { handlebars })
+    }
+
+    /// Watches the filesystem for changes to prompt template overrides.
+    ///
+    /// This function sets up a file watcher on the prompt templates directory. It performs
+    /// an initial scan of the directory and registers any existing template overrides.
+    /// Then it continuously monitors for changes, reloading templates as they are
+    /// modified or added.
+    ///
+    /// If the templates directory doesn't exist initially, it waits for it to be created.
+    /// If the directory is removed, it restores the built-in templates and waits for the
+    /// directory to be recreated.
+    ///
+    /// # Arguments
+    ///
+    /// * `params` - A `PromptLoadingParams` struct containing the filesystem, repository path,
+    ///   and application context.
+    /// * `handlebars` - An `Arc<Mutex<Handlebars>>` for registering and updating templates.
+    fn watch_fs_for_template_overrides(
+        params: PromptLoadingParams,
+        handlebars: Arc<Mutex<Handlebars<'static>>>,
+    ) {
+        let templates_dir = paths::prompt_overrides_dir(params.repo_path.as_deref());
+        params.cx.background_executor()
+            .spawn(async move {
+                let Some(parent_dir) = templates_dir.parent() else {
+                    return;
+                };
+
+                let mut found_dir_once = false;
+                loop {
+                    // Check if the templates directory exists and handle its status
+                    // If it exists, log its presence and check if it's a symlink
+                    // If it doesn't exist:
+                    //   - Log that we're using built-in prompts
+                    //   - Check if it's a broken symlink and log if so
+                    //   - Set up a watcher to detect when it's created
+                    // After the first check, set the `found_dir_once` flag
+                    // This allows us to avoid logging when looping back around after deleting the prompt overrides directory.
+                    let dir_status = params.fs.is_dir(&templates_dir).await;
+                    let symlink_status = params.fs.read_link(&templates_dir).await.ok();
+                    if dir_status {
+                        let mut log_message = format!("Prompt template overrides directory found at {}", templates_dir.display());
+                        if let Some(target) = symlink_status {
+                            log_message.push_str(" -> ");
+                            log_message.push_str(&target.display().to_string());
+                        }
+                        log::info!("{}.", log_message);
+                    } else {
+                        if !found_dir_once {
+                            log::info!("No prompt template overrides directory found at {}. Using built-in prompts.", templates_dir.display());
+                            if let Some(target) = symlink_status {
+                                log::info!("Symlink found pointing to {}, but target is invalid.", target.display());
+                            }
+                        }
+
+                        if params.fs.is_dir(parent_dir).await {
+                            let (mut changes, _watcher) = params.fs.watch(parent_dir, Duration::from_secs(1)).await;
+                            while let Some(changed_paths) = changes.next().await {
+                                if changed_paths.iter().any(|p| &p.path == &templates_dir) {
+                                    let mut log_message = format!("Prompt template overrides directory detected at {}", templates_dir.display());
+                                    if let Ok(target) = params.fs.read_link(&templates_dir).await {
+                                        log_message.push_str(" -> ");
+                                        log_message.push_str(&target.display().to_string());
+                                    }
+                                    log::info!("{}.", log_message);
+                                    break;
+                                }
+                            }
+                        } else {
+                            return;
+                        }
+                    }
+
+                    found_dir_once = true;
+
+                    // Initial scan of the prompt overrides directory
+                    if let Ok(mut entries) = params.fs.read_dir(&templates_dir).await {
+                        while let Some(Ok(file_path)) = entries.next().await {
+                            if file_path.to_string_lossy().ends_with(".hbs") {
+                                if let Ok(content) = params.fs.load(&file_path).await {
+                                    let file_name = file_path.file_stem().unwrap().to_string_lossy();
+                                    log::debug!("Registering prompt template override: {}", file_name);
+                                    handlebars.lock().register_template_string(&file_name, content).log_err();
+                                }
+                            }
+                        }
+                    }
+
+                    // Watch both the parent directory and the template overrides directory:
+                    // - Monitor the parent directory to detect if the template overrides directory is deleted.
+                    // - Monitor the template overrides directory to re-register templates when they change.
+                    // Combine both watch streams into a single stream.
+                    let (parent_changes, parent_watcher) = params.fs.watch(parent_dir, Duration::from_secs(1)).await;
+                    let (changes, watcher) = params.fs.watch(&templates_dir, Duration::from_secs(1)).await;
+                    let mut combined_changes = futures::stream::select(changes, parent_changes);
+
+                    while let Some(changed_paths) = combined_changes.next().await {
+                        if changed_paths.iter().any(|p| &p.path == &templates_dir) {
+                            if !params.fs.is_dir(&templates_dir).await {
+                                log::info!("Prompt template overrides directory removed. Restoring built-in prompt templates.");
+                                Self::register_built_in_templates(&mut handlebars.lock()).log_err();
+                                break;
+                            }
+                        }
+                        for event in changed_paths {
+                            if event.path.starts_with(&templates_dir) && event.path.extension().map_or(false, |ext| ext == "hbs") {
+                                log::info!("Reloading prompt template override: {}", event.path.display());
+                                if let Some(content) = params.fs.load(&event.path).await.log_err() {
+                                    let file_name = event.path.file_stem().unwrap().to_string_lossy();
+                                    handlebars.lock().register_template_string(&file_name, content).log_err();
+                                }
+                            }
+                        }
+                    }
+
+                    drop(watcher);
+                    drop(parent_watcher);
+                }
+            })
+            .detach();
+    }
+
+    fn register_built_in_templates(handlebars: &mut Handlebars) -> Result<()> {
+        for path in Assets.list("prompts")? {
+            if let Some(id) = path.split('/').last().and_then(|s| s.strip_suffix(".hbs")) {
+                if let Some(prompt) = Assets.load(path.as_ref()).log_err().flatten() {
+                    log::debug!("Registering built-in prompt template: {}", id);
+                    let prompt = String::from_utf8_lossy(prompt.as_ref());
+                    handlebars.register_template_string(id, LineEnding::normalize_cow(prompt))?
+                }
+            }
+        }
+
+        Ok(())
+    }
+
+    pub fn generate_inline_transformation_prompt(
+        &self,
+        user_prompt: String,
+        language_name: Option<&LanguageName>,
+        buffer: BufferSnapshot,
+        range: Range<usize>,
+    ) -> Result<String, RenderError> {
+        let content_type = match language_name.as_ref().map(|l| l.0.as_ref()) {
+            None | Some("Markdown" | "Plain Text") => "text",
+            Some(_) => "code",
+        };
+
+        const MAX_CTX: usize = 50000;
+        let is_insert = range.is_empty();
+        let mut is_truncated = false;
+
+        let before_range = 0..range.start;
+        let truncated_before = if before_range.len() > MAX_CTX {
+            is_truncated = true;
+            let start = buffer.clip_offset(range.start - MAX_CTX, text::Bias::Right);
+            start..range.start
+        } else {
+            before_range
+        };
+
+        let after_range = range.end..buffer.len();
+        let truncated_after = if after_range.len() > MAX_CTX {
+            is_truncated = true;
+            let end = buffer.clip_offset(range.end + MAX_CTX, text::Bias::Left);
+            range.end..end
+        } else {
+            after_range
+        };
+
+        let mut document_content = String::new();
+        for chunk in buffer.text_for_range(truncated_before) {
+            document_content.push_str(chunk);
+        }
+        if is_insert {
+            document_content.push_str("<insert_here></insert_here>");
+        } else {
+            document_content.push_str("<rewrite_this>\n");
+            for chunk in buffer.text_for_range(range.clone()) {
+                document_content.push_str(chunk);
+            }
+            document_content.push_str("\n</rewrite_this>");
+        }
+        for chunk in buffer.text_for_range(truncated_after) {
+            document_content.push_str(chunk);
+        }
+
+        let rewrite_section = if !is_insert {
+            let mut section = String::new();
+            for chunk in buffer.text_for_range(range.clone()) {
+                section.push_str(chunk);
+            }
+            Some(section)
+        } else {
+            None
+        };
+        let diagnostics = buffer.diagnostics_in_range::<_, Point>(range, false);
+        let diagnostic_errors: Vec<ContentPromptDiagnosticContext> = diagnostics
+            .map(|entry| {
+                let start = entry.range.start;
+                ContentPromptDiagnosticContext {
+                    line_number: (start.row + 1) as usize,
+                    error_message: entry.diagnostic.message.clone(),
+                    code_content: buffer.text_for_range(entry.range.clone()).collect(),
+                }
+            })
+            .collect();
+
+        let context = ContentPromptContext {
+            content_type: content_type.to_string(),
+            language_name: language_name.map(|s| s.to_string()),
+            is_insert,
+            is_truncated,
+            document_content,
+            user_prompt,
+            rewrite_section,
+            diagnostic_errors,
+        };
+        self.handlebars.lock().render("content_prompt", &context)
+    }
+
+    pub fn generate_terminal_assistant_prompt(
+        &self,
+        user_prompt: &str,
+        shell: Option<&str>,
+        working_directory: Option<&str>,
+        latest_output: &[String],
+    ) -> Result<String, RenderError> {
+        let context = TerminalAssistantPromptContext {
+            os: std::env::consts::OS.to_string(),
+            arch: std::env::consts::ARCH.to_string(),
+            shell: shell.map(|s| s.to_string()),
+            working_directory: working_directory.map(|s| s.to_string()),
+            latest_output: latest_output.to_vec(),
+            user_prompt: user_prompt.to_string(),
+        };
+
+        self.handlebars
+            .lock()
+            .render("terminal_assistant_prompt", &context)
+    }
+}
--- a/crates/assistant2/src/streaming_diff.rs
+++ b/crates/assistant2/src/streaming_diff.rs
--- a/crates/assistant2/src/terminal_inline_assistant.rs
+++ b/crates/assistant2/src/terminal_inline_assistant.rs
--- a/crates/assistant2/src/thread.rs
+++ b/crates/assistant2/src/thread.rs
@@ -2,24 +2,43 @@ use std::sync::Arc;

 use anyhow::Result;
 use assistant_tool::ToolWorkingSet;
+use chrono::{DateTime, Utc};
 use collections::HashMap;
 use futures::future::Shared;
 use futures::{FutureExt as _, StreamExt as _};
 use gpui::{AppContext, EventEmitter, ModelContext, SharedString, Task};
 use language_model::{
-    LanguageModel, LanguageModelCompletionEvent, LanguageModelRequest, LanguageModelRequestMessage,
-    LanguageModelToolResult, LanguageModelToolUse, LanguageModelToolUseId, MessageContent, Role,
-    StopReason,
+    LanguageModel, LanguageModelCompletionEvent, LanguageModelRegistry, LanguageModelRequest,
+    LanguageModelRequestMessage, LanguageModelToolResult, LanguageModelToolUse,
+    LanguageModelToolUseId, MessageContent, Role, StopReason,
 };
 use language_models::provider::cloud::{MaxMonthlySpendReachedError, PaymentRequiredError};
 use serde::{Deserialize, Serialize};
-use util::post_inc;
+use util::{post_inc, TryFutureExt as _};
+use uuid::Uuid;
+
+use crate::context::{Context, ContextKind};

 #[derive(Debug, Clone, Copy)]
 pub enum RequestKind {
    Chat,
 }

+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Serialize, Deserialize)]
+pub struct ThreadId(Arc<str>);
+
+impl ThreadId {
+    pub fn new() -> Self {
+        Self(Uuid::new_v4().to_string().into())
+    }
+}
+
+impl std::fmt::Display for ThreadId {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
 #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Serialize, Deserialize)]
 pub struct MessageId(usize);

@@ -39,8 +58,13 @@ pub struct Message {

 /// A thread of conversation with the LLM.
 pub struct Thread {
+    id: ThreadId,
+    updated_at: DateTime<Utc>,
+    summary: Option<SharedString>,
+    pending_summary: Task<Option<()>>,
    messages: Vec<Message>,
    next_message_id: MessageId,
+    context_by_message: HashMap<MessageId, Vec<Context>>,
    completion_count: usize,
    pending_completions: Vec<PendingCompletion>,
    tools: Arc<ToolWorkingSet>,
@@ -52,8 +76,13 @@ pub struct Thread {
 impl Thread {
    pub fn new(tools: Arc<ToolWorkingSet>, _cx: &mut ModelContext<Self>) -> Self {
        Self {
+            id: ThreadId::new(),
+            updated_at: Utc::now(),
+            summary: None,
+            pending_summary: Task::ready(None),
            messages: Vec::new(),
            next_message_id: MessageId(0),
+            context_by_message: HashMap::default(),
            completion_count: 0,
            pending_completions: Vec::new(),
            tools,
@@ -63,26 +92,76 @@ impl Thread {
        }
    }

+    pub fn id(&self) -> &ThreadId {
+        &self.id
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.messages.is_empty()
+    }
+
+    pub fn updated_at(&self) -> DateTime<Utc> {
+        self.updated_at
+    }
+
+    pub fn touch_updated_at(&mut self) {
+        self.updated_at = Utc::now();
+    }
+
+    pub fn summary(&self) -> Option<SharedString> {
+        self.summary.clone()
+    }
+
+    pub fn set_summary(&mut self, summary: impl Into<SharedString>, cx: &mut ModelContext<Self>) {
+        self.summary = Some(summary.into());
+        cx.emit(ThreadEvent::SummaryChanged);
+    }
+
    pub fn message(&self, id: MessageId) -> Option<&Message> {
        self.messages.iter().find(|message| message.id == id)
    }

+    pub fn messages(&self) -> impl Iterator<Item = &Message> {
+        self.messages.iter()
+    }
+
    pub fn tools(&self) -> &Arc<ToolWorkingSet> {
        &self.tools
    }

+    pub fn context_for_message(&self, id: MessageId) -> Option<&Vec<Context>> {
+        self.context_by_message.get(&id)
+    }
+
    pub fn pending_tool_uses(&self) -> Vec<&PendingToolUse> {
        self.pending_tool_uses_by_id.values().collect()
    }

-    pub fn insert_user_message(&mut self, text: impl Into<String>, cx: &mut ModelContext<Self>) {
+    pub fn insert_user_message(
+        &mut self,
+        text: impl Into<String>,
+        context: Vec<Context>,
+        cx: &mut ModelContext<Self>,
+    ) {
+        let message_id = self.insert_message(Role::User, text, cx);
+        self.context_by_message.insert(message_id, context);
+    }
+
+    pub fn insert_message(
+        &mut self,
+        role: Role,
+        text: impl Into<String>,
+        cx: &mut ModelContext<Self>,
+    ) -> MessageId {
        let id = self.next_message_id.post_inc();
        self.messages.push(Message {
            id,
-            role: Role::User,
+            role,
            text: text.into(),
        });
+        self.touch_updated_at();
        cx.emit(ThreadEvent::MessageAdded(id));
+        id
    }

    pub fn to_completion_request(
@@ -112,6 +191,41 @@ impl Thread {
                }
            }

+            if let Some(context) = self.context_for_message(message.id) {
+                let mut file_context = String::new();
+                let mut fetch_context = String::new();
+
+                for context in context.iter() {
+                    match context.kind {
+                        ContextKind::File => {
+                            file_context.push_str(&context.text);
+                            file_context.push('\n');
+                        }
+                        ContextKind::FetchedUrl => {
+                            fetch_context.push_str(&context.name);
+                            fetch_context.push('\n');
+                            fetch_context.push_str(&context.text);
+                            fetch_context.push('\n');
+                        }
+                    }
+                }
+
+                let mut context_text = String::new();
+                if !file_context.is_empty() {
+                    context_text.push_str("The following files are available:\n");
+                    context_text.push_str(&file_context);
+                }
+
+                if !fetch_context.is_empty() {
+                    context_text.push_str("The following fetched results are available\n");
+                    context_text.push_str(&fetch_context);
+                }
+
+                request_message
+                    .content
+                    .push(MessageContent::Text(context_text))
+            }
+
            if !message.text.is_empty() {
                request_message
                    .content
@@ -152,13 +266,7 @@ impl Thread {
                    thread.update(&mut cx, |thread, cx| {
                        match event {
                            LanguageModelCompletionEvent::StartMessage { .. } => {
-                                let id = thread.next_message_id.post_inc();
-                                thread.messages.push(Message {
-                                    id,
-                                    role: Role::Assistant,
-                                    text: String::new(),
-                                });
-                                cx.emit(ThreadEvent::MessageAdded(id));
+                                thread.insert_message(Role::Assistant, String::new(), cx);
                            }
                            LanguageModelCompletionEvent::Stop(reason) => {
                                stop_reason = reason;
@@ -200,6 +308,7 @@ impl Thread {
                            }
                        }

+                        thread.touch_updated_at();
                        cx.emit(ThreadEvent::StreamedCompletion);
                        cx.notify();
                    })?;
@@ -207,10 +316,14 @@ impl Thread {
                    smol::future::yield_now().await;
                }

-                thread.update(&mut cx, |thread, _cx| {
+                thread.update(&mut cx, |thread, cx| {
                    thread
                        .pending_completions
                        .retain(|completion| completion.id != pending_completion_id);
+
+                    if thread.summary.is_none() && thread.messages.len() >= 2 {
+                        thread.summarize(cx);
+                    }
                })?;

                anyhow::Ok(stop_reason)
@@ -253,6 +366,59 @@ impl Thread {
        });
    }

+    pub fn summarize(&mut self, cx: &mut ModelContext<Self>) {
+        let Some(provider) = LanguageModelRegistry::read_global(cx).active_provider() else {
+            return;
+        };
+        let Some(model) = LanguageModelRegistry::read_global(cx).active_model() else {
+            return;
+        };
+
+        if !provider.is_authenticated(cx) {
+            return;
+        }
+
+        let mut request = self.to_completion_request(RequestKind::Chat, cx);
+        request.messages.push(LanguageModelRequestMessage {
+            role: Role::User,
+            content: vec![
+                "Generate a concise 3-7 word title for this conversation, omitting punctuation. Go straight to the title, without any preamble and prefix like `Here's a concise suggestion:...` or `Title:`"
+                    .into(),
+            ],
+            cache: false,
+        });
+
+        self.pending_summary = cx.spawn(|this, mut cx| {
+            async move {
+                let stream = model.stream_completion_text(request, &cx);
+                let mut messages = stream.await?;
+
+                let mut new_summary = String::new();
+                while let Some(message) = messages.stream.next().await {
+                    let text = message?;
+                    let mut lines = text.lines();
+                    new_summary.extend(lines.next());
+
+                    // Stop if the LLM generated multiple lines.
+                    if lines.next().is_some() {
+                        break;
+                    }
+                }
+
+                this.update(&mut cx, |this, cx| {
+                    if !new_summary.is_empty() {
+                        this.summary = Some(new_summary.into());
+                    }
+
+                    cx.emit(ThreadEvent::SummaryChanged);
+                })?;
+
+                anyhow::Ok(())
+            }
+            .log_err()
+        });
+    }
+
    pub fn insert_tool_output(
        &mut self,
        assistant_message_id: MessageId,
@@ -326,6 +492,7 @@ pub enum ThreadEvent {
    StreamedCompletion,
    StreamedAssistantText(MessageId, String),
    MessageAdded(MessageId),
+    SummaryChanged,
    UsePendingTools,
    ToolFinished {
        #[allow(unused)]
--- a/crates/assistant2/src/thread_history.rs
+++ b/crates/assistant2/src/thread_history.rs
@@ -0,0 +1,156 @@
+use gpui::{
+    uniform_list, AppContext, FocusHandle, FocusableView, Model, UniformListScrollHandle, WeakView,
+};
+use time::{OffsetDateTime, UtcOffset};
+use ui::{prelude::*, IconButtonShape, ListItem};
+
+use crate::thread::Thread;
+use crate::thread_store::ThreadStore;
+use crate::AssistantPanel;
+
+pub struct ThreadHistory {
+    focus_handle: FocusHandle,
+    assistant_panel: WeakView<AssistantPanel>,
+    thread_store: Model<ThreadStore>,
+    scroll_handle: UniformListScrollHandle,
+}
+
+impl ThreadHistory {
+    pub(crate) fn new(
+        assistant_panel: WeakView<AssistantPanel>,
+        thread_store: Model<ThreadStore>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        Self {
+            focus_handle: cx.focus_handle(),
+            assistant_panel,
+            thread_store,
+            scroll_handle: UniformListScrollHandle::default(),
+        }
+    }
+}
+
+impl FocusableView for ThreadHistory {
+    fn focus_handle(&self, _cx: &AppContext) -> 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));
+
+        v_flex()
+            .id("thread-history-container")
+            .track_focus(&self.focus_handle)
+            .overflow_y_scroll()
+            .size_full()
+            .p_1()
+            .map(|history| {
+                if threads.is_empty() {
+                    history
+                        .justify_center()
+                        .child(
+                            h_flex().w_full().justify_center().child(
+                                Label::new("You don't have any past threads yet.")
+                                    .size(LabelSize::Small),
+                            ),
+                        )
+                } else {
+                    history.child(
+                        uniform_list(
+                            cx.view().clone(),
+                            "thread-history",
+                            threads.len(),
+                            move |history, range, _cx| {
+                                threads[range]
+                                    .iter()
+                                    .map(|thread| {
+                                        PastThread::new(
+                                            thread.clone(),
+                                            history.assistant_panel.clone(),
+                                        )
+                                    })
+                                    .collect()
+                            },
+                        )
+                        .track_scroll(self.scroll_handle.clone())
+                        .flex_grow(),
+                    )
+                }
+            })
+    }
+}
+
+#[derive(IntoElement)]
+pub struct PastThread {
+    thread: Model<Thread>,
+    assistant_panel: WeakView<AssistantPanel>,
+}
+
+impl PastThread {
+    pub fn new(thread: Model<Thread>, assistant_panel: WeakView<AssistantPanel>) -> Self {
+        Self {
+            thread,
+            assistant_panel,
+        }
+    }
+}
+
+impl RenderOnce for PastThread {
+    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
+        let (id, summary) = {
+            const DEFAULT_SUMMARY: SharedString = SharedString::new_static("New Thread");
+            let thread = self.thread.read(cx);
+            (
+                thread.id().clone(),
+                thread.summary().unwrap_or(DEFAULT_SUMMARY),
+            )
+        };
+
+        let thread_timestamp = time_format::format_localized_timestamp(
+            OffsetDateTime::from_unix_timestamp(self.thread.read(cx).updated_at().timestamp())
+                .unwrap(),
+            OffsetDateTime::now_utc(),
+            self.assistant_panel
+                .update(cx, |this, _cx| this.local_timezone())
+                .unwrap_or(UtcOffset::UTC),
+            time_format::TimestampFormat::EnhancedAbsolute,
+        );
+        ListItem::new(("past-thread", self.thread.entity_id()))
+            .start_slot(Icon::new(IconName::MessageBubbles))
+            .child(Label::new(summary))
+            .end_slot(
+                h_flex()
+                    .gap_2()
+                    .child(Label::new(thread_timestamp).color(Color::Disabled))
+                    .child(
+                        IconButton::new("delete", IconName::TrashAlt)
+                            .shape(IconButtonShape::Square)
+                            .icon_size(IconSize::Small)
+                            .on_click({
+                                let assistant_panel = self.assistant_panel.clone();
+                                let id = id.clone();
+                                move |_event, cx| {
+                                    assistant_panel
+                                        .update(cx, |this, cx| {
+                                            this.delete_thread(&id, cx);
+                                        })
+                                        .ok();
+                                }
+                            }),
+                    ),
+            )
+            .on_click({
+                let assistant_panel = self.assistant_panel.clone();
+                let id = id.clone();
+                move |_event, cx| {
+                    assistant_panel
+                        .update(cx, |this, cx| {
+                            this.open_thread(&id, cx);
+                        })
+                        .ok();
+                }
+            })
+    }
+}
--- a/crates/assistant2/src/thread_store.rs
+++ b/crates/assistant2/src/thread_store.rs
@@ -7,14 +7,18 @@ use context_server::manager::ContextServerManager;
 use context_server::{ContextServerFactoryRegistry, ContextServerTool};
 use gpui::{prelude::*, AppContext, Model, ModelContext, Task};
 use project::Project;
+use unindent::Unindent;
 use util::ResultExt as _;

+use crate::thread::{Thread, ThreadId};
+
 pub struct ThreadStore {
    #[allow(unused)]
    project: Model<Project>,
    tools: Arc<ToolWorkingSet>,
    context_server_manager: Model<ContextServerManager>,
    context_server_tool_ids: HashMap<Arc<str>, Vec<ToolId>>,
+    threads: Vec<Model<Thread>>,
 }

 impl ThreadStore {
@@ -31,12 +35,14 @@ impl ThreadStore {
                    ContextServerManager::new(context_server_factory_registry, project.clone(), cx)
                });

-                let this = Self {
+                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);

                this
@@ -46,6 +52,38 @@ impl ThreadStore {
        })
    }

+    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()));
+        threads
+    }
+
+    pub fn recent_threads(&self, limit: usize, cx: &ModelContext<Self>) -> Vec<Model<Thread>> {
+        self.threads(cx).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 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 delete_thread(&mut self, id: &ThreadId, cx: &mut ModelContext<Self>) {
+        self.threads.retain(|thread| thread.read(cx).id() != id);
+    }
+
    fn register_context_server_handlers(&self, cx: &mut ModelContext<Self>) {
        cx.subscribe(
            &self.context_server_manager.clone(),
@@ -112,3 +150,93 @@ 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;
+
+        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
+        }));
+
+        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:
+
+        ```rust
+        use actix_web::{web, App, HttpResponse, HttpServer, Responder};
+
+        async fn hello() -> impl Responder {
+            HttpResponse::Ok().body(\"Hello, World!\")
+        }
+
+        #[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
+        }
+        ```
+
+        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:
+
+        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.
+
+        To run this, you'd need to add `actix-web` to your `Cargo.toml` dependencies:
+
+        ```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
+        }));
+    }
+}
--- a/crates/assistant2/src/ui.rs
+++ b/crates/assistant2/src/ui.rs
@@ -0,0 +1,3 @@
+mod context_pill;
+
+pub use context_pill::*;
--- a/crates/assistant2/src/ui/context_pill.rs
+++ b/crates/assistant2/src/ui/context_pill.rs
@@ -0,0 +1,49 @@
+use std::rc::Rc;
+
+use gpui::ClickEvent;
+use ui::{prelude::*, IconButtonShape};
+
+use crate::context::Context;
+
+#[derive(IntoElement)]
+pub struct ContextPill {
+    context: Context,
+    on_remove: Option<Rc<dyn Fn(&ClickEvent, &mut WindowContext)>>,
+}
+
+impl ContextPill {
+    pub fn new(context: Context) -> Self {
+        Self {
+            context,
+            on_remove: None,
+        }
+    }
+
+    pub fn on_remove(mut self, on_remove: Rc<dyn Fn(&ClickEvent, &mut WindowContext)>) -> Self {
+        self.on_remove = Some(on_remove);
+        self
+    }
+}
+
+impl RenderOnce for ContextPill {
+    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
+        h_flex()
+            .gap_1()
+            .px_1()
+            .border_1()
+            .border_color(cx.theme().colors().border)
+            .rounded_md()
+            .child(Label::new(self.context.name.clone()).size(LabelSize::Small))
+            .when_some(self.on_remove, |parent, on_remove| {
+                parent.child(
+                    IconButton::new("remove", IconName::Close)
+                        .shape(IconButtonShape::Square)
+                        .icon_size(IconSize::XSmall)
+                        .on_click({
+                            let on_remove = on_remove.clone();
+                            move |event, cx| on_remove(event, cx)
+                        }),
+                )
+            })
+    }
+}
--- a/crates/call/Cargo.toml
+++ b/crates/call/Cargo.toml
@@ -18,6 +18,7 @@ test-support = [
    "collections/test-support",
    "gpui/test-support",
    "livekit_client/test-support",
+    "livekit_client_macos/test-support",
    "project/test-support",
    "util/test-support"
 ]
@@ -42,10 +43,10 @@ settings.workspace = true
 util.workspace = true

 [target.'cfg(target_os = "macos")'.dependencies]
-livekit_client_macos.workspace = true
+livekit_client_macos = { workspace = true }

 [target.'cfg(not(target_os = "macos"))'.dependencies]
-livekit_client.workspace = true
+livekit_client = { workspace = true }

 [dev-dependencies]
 client = { workspace = true, features = ["test-support"] }
--- a/crates/call/src/call_settings.rs
+++ b/crates/call/src/call_settings.rs
@@ -20,7 +20,7 @@ pub struct CallSettingsContent {

    /// Whether your current project should be shared when joining an empty channel.
    ///
-    /// Default: true
+    /// Default: false
    pub share_on_join: Option<bool>,
 }

--- a/crates/call/src/cross_platform/room.rs
+++ b/crates/call/src/cross_platform/room.rs
@@ -1288,6 +1288,12 @@ impl Room {
        })
    }

+    pub fn muted_by_user(&self) -> bool {
+        self.live_kit
+            .as_ref()
+            .map_or(false, |live_kit| live_kit.muted_by_user)
+    }
+
    pub fn is_speaking(&self) -> bool {
        self.live_kit
            .as_ref()
--- a/crates/call/src/macos/room.rs
+++ b/crates/call/src/macos/room.rs
@@ -1307,6 +1307,12 @@ impl Room {
        })
    }

+    pub fn muted_by_user(&self) -> bool {
+        self.live_kit
+            .as_ref()
+            .map_or(false, |live_kit| live_kit.muted_by_user)
+    }
+
    pub fn is_speaking(&self) -> bool {
        self.live_kit
            .as_ref()
--- a/crates/cli/src/main.rs
+++ b/crates/cli/src/main.rs
@@ -548,7 +548,7 @@ mod mac_os {
        },
        LocalPath {
            executable: PathBuf,
-            short_version_string: String,
+            plist: InfoPlist,
        },
    }

@@ -587,9 +587,17 @@ mod mac_os {
                }
                _ => {
                    println!("Bundle path {bundle_path:?} has no *.app extension, attempting to locate a dev build");
+                    let plist_path = bundle_path
+                        .parent()
+                        .with_context(|| format!("Bundle path {bundle_path:?} has no parent"))?
+                        .join("WebRTC.framework/Resources/Info.plist");
+                    let plist =
+                        plist::from_file::<_, InfoPlist>(&plist_path).with_context(|| {
+                            format!("Reading dev bundle plist file at {plist_path:?}")
+                        })?;
                    Ok(Bundle::LocalPath {
                        executable: bundle_path,
-                        short_version_string: "test-dev-version".to_string(),
+                        plist,
                    })
                }
            }
@@ -599,16 +607,9 @@ mod mac_os {
    impl InstalledApp for Bundle {
        fn zed_version_string(&self) -> String {
            let is_dev = matches!(self, Self::LocalPath { .. });
-            let version = match self {
-                Bundle::App { plist, .. } => &plist.bundle_short_version_string,
-                Bundle::LocalPath {
-                    short_version_string,
-                    ..
-                } => &short_version_string,
-            };
            format!(
                "Zed {}{} – {}",
-                version,
+                self.plist().bundle_short_version_string,
                if is_dev { " (dev)" } else { "" },
                self.path().display(),
            )
@@ -690,6 +691,13 @@ mod mac_os {
    }

    impl Bundle {
+        fn plist(&self) -> &InfoPlist {
+            match self {
+                Self::App { plist, .. } => plist,
+                Self::LocalPath { plist, .. } => plist,
+            }
+        }
+
        fn path(&self) -> &Path {
            match self {
                Self::App { app_bundle, .. } => app_bundle,
--- a/crates/client/src/telemetry.rs
+++ b/crates/client/src/telemetry.rs
@@ -18,7 +18,8 @@ use std::time::Instant;
 use std::{env, mem, path::PathBuf, sync::Arc, time::Duration};
 use telemetry_events::{
    ActionEvent, AppEvent, AssistantEvent, CallEvent, EditEvent, EditorEvent, Event,
-    EventRequestBody, EventWrapper, ExtensionEvent, InlineCompletionEvent, ReplEvent, SettingEvent,
+    EventRequestBody, EventWrapper, ExtensionEvent, InlineCompletionEvent, InlineCompletionRating,
+    InlineCompletionRatingEvent, ReplEvent, SettingEvent,
 };
 use util::{ResultExt, TryFutureExt};
 use worktree::{UpdatedEntriesSet, WorktreeId};
@@ -355,6 +356,24 @@ impl Telemetry {
        self.report_event(event)
    }

+    pub fn report_inline_completion_rating_event(
+        self: &Arc<Self>,
+        rating: InlineCompletionRating,
+        input_events: Arc<str>,
+        input_excerpt: Arc<str>,
+        output_excerpt: Arc<str>,
+        feedback: String,
+    ) {
+        let event = Event::InlineCompletionRating(InlineCompletionRatingEvent {
+            rating,
+            input_events,
+            input_excerpt,
+            output_excerpt,
+            feedback,
+        });
+        self.report_event(event);
+    }
+
    pub fn report_assistant_event(self: &Arc<Self>, event: AssistantEvent) {
        self.report_event(Event::Assistant(event));
    }
--- a/crates/collab/.env.toml
+++ b/crates/collab/.env.toml
@@ -19,11 +19,6 @@ LLM_DATABASE_URL = "postgres://postgres@localhost/zed_llm"
 LLM_DATABASE_MAX_CONNECTIONS = 5
 LLM_API_SECRET = "llm-secret"

-# CLICKHOUSE_URL = ""
-# CLICKHOUSE_USER = "default"
-# CLICKHOUSE_PASSWORD = ""
-# CLICKHOUSE_DATABASE = "default"
-
 # SLACK_PANICS_WEBHOOK = ""

 # RUST_LOG=info
--- a/crates/collab/Cargo.toml
+++ b/crates/collab/Cargo.toml
@@ -29,7 +29,6 @@ axum = { version = "0.6", features = ["json", "headers", "ws"] }
 axum-extra = { version = "0.4", features = ["erased-json"] }
 base64.workspace = true
 chrono.workspace = true
-clickhouse.workspace = true
 clock.workspace = true
 collections.workspace = true
 dashmap.workspace = true
@@ -77,12 +76,6 @@ tracing-subscriber = { version = "0.3.18", features = ["env-filter", "json", "re
 util.workspace = true
 uuid.workspace = true

-[target.'cfg(target_os = "macos")'.dependencies]
-livekit_client_macos = { workspace = true, features = ["test-support"] }
-
-[target.'cfg(not(target_os = "macos"))'.dependencies]
-livekit_client = { workspace = true, features = ["test-support"] }
-
 [dev-dependencies]
 assistant = { workspace = true, features = ["test-support"] }
 assistant_tool.workspace = true
--- a/crates/collab/k8s/collab.template.yml
+++ b/crates/collab/k8s/collab.template.yml
@@ -149,6 +149,21 @@ spec:
                secretKeyRef:
                  name: google-ai
                  key: api_key
+            - name: PREDICTION_API_URL
+              valueFrom:
+                secretKeyRef:
+                  name: prediction
+                  key: api_url
+            - name: PREDICTION_API_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: prediction
+                  key: api_key
+            - name: PREDICTION_MODEL
+              valueFrom:
+                secretKeyRef:
+                  name: prediction
+                  key: model
            - name: BLOB_STORE_ACCESS_KEY
              valueFrom:
                secretKeyRef:
@@ -199,26 +214,6 @@ spec:
                secretKeyRef:
                  name: blob-store
                  key: bucket
-            - name: CLICKHOUSE_URL
-              valueFrom:
-                secretKeyRef:
-                  name: clickhouse
-                  key: url
-            - name: CLICKHOUSE_USER
-              valueFrom:
-                secretKeyRef:
-                  name: clickhouse
-                  key: user
-            - name: CLICKHOUSE_PASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: clickhouse
-                  key: password
-            - name: CLICKHOUSE_DATABASE
-              valueFrom:
-                secretKeyRef:
-                  name: clickhouse
-                  key: database
            - name: SLACK_PANICS_WEBHOOK
              valueFrom:
                secretKeyRef:
--- a/crates/collab/src/api/billing.rs
+++ b/crates/collab/src/api/billing.rs
@@ -9,6 +9,7 @@ use collections::HashSet;
 use reqwest::StatusCode;
 use sea_orm::ActiveValue;
 use serde::{Deserialize, Serialize};
+use serde_json::json;
 use std::{str::FromStr, sync::Arc, time::Duration};
 use stripe::{
    BillingPortalSession, CreateBillingPortalSession, CreateBillingPortalSessionFlowData,
@@ -19,6 +20,7 @@ use stripe::{
 };
 use util::ResultExt;

+use crate::api::events::SnowflakeRow;
 use crate::llm::{DEFAULT_MAX_MONTHLY_SPEND, FREE_TIER_MONTHLY_SPENDING_LIMIT};
 use crate::rpc::{ResultExt as _, Server};
 use crate::{
@@ -100,6 +102,9 @@ async fn update_billing_preferences(
        .await?
        .ok_or_else(|| anyhow!("user not found"))?;

+    let max_monthly_llm_usage_spending_in_cents =
+        body.max_monthly_llm_usage_spending_in_cents.max(0);
+
    let billing_preferences =
        if let Some(_billing_preferences) = app.db.get_billing_preferences(user.id).await? {
            app.db
@@ -107,7 +112,7 @@ async fn update_billing_preferences(
                    user.id,
                    &UpdateBillingPreferencesParams {
                        max_monthly_llm_usage_spending_in_cents: ActiveValue::set(
-                            body.max_monthly_llm_usage_spending_in_cents,
+                            max_monthly_llm_usage_spending_in_cents,
                        ),
                    },
                )
@@ -117,13 +122,26 @@ async fn update_billing_preferences(
                .create_billing_preferences(
                    user.id,
                    &crate::db::CreateBillingPreferencesParams {
-                        max_monthly_llm_usage_spending_in_cents: body
-                            .max_monthly_llm_usage_spending_in_cents,
+                        max_monthly_llm_usage_spending_in_cents,
                    },
                )
                .await?
        };

+    SnowflakeRow::new(
+        "Spend Limit Updated",
+        user.metrics_id,
+        user.admin,
+        None,
+        json!({
+            "user_id": user.id,
+            "max_monthly_llm_usage_spending_in_cents": billing_preferences.max_monthly_llm_usage_spending_in_cents,
+        }),
+    )
+    .write(&app.kinesis_client, &app.config.kinesis_stream)
+    .await
+    .log_err();
+
    rpc_server.refresh_llm_tokens_for_user(user.id).await;

    Ok(Json(BillingPreferencesResponse {
--- a/crates/collab/src/api/events.rs
+++ b/crates/collab/src/api/events.rs
--- a/crates/collab/src/clickhouse.rs
+++ b/crates/collab/src/clickhouse.rs
@@ -1,28 +0,0 @@
-use serde::Serialize;
-
-/// Writes the given rows to the specified Clickhouse table.
-pub async fn write_to_table<T: clickhouse::Row + Serialize + std::fmt::Debug>(
-    table: &str,
-    rows: &[T],
-    clickhouse_client: &clickhouse::Client,
-) -> anyhow::Result<()> {
-    if rows.is_empty() {
-        return Ok(());
-    }
-
-    let mut insert = clickhouse_client.insert(table)?;
-
-    for event in rows {
-        insert.write(event).await?;
-    }
-
-    insert.end().await?;
-
-    let event_count = rows.len();
-    log::info!(
-        "wrote {event_count} {event_specifier} to '{table}'",
-        event_specifier = if event_count == 1 { "event" } else { "events" }
-    );
-
-    Ok(())
-}
--- a/crates/collab/src/lib.rs
+++ b/crates/collab/src/lib.rs
@@ -1,7 +1,6 @@
 pub mod api;
 pub mod auth;
 mod cents;
-pub mod clickhouse;
 pub mod db;
 pub mod env;
 pub mod executor;
@@ -151,10 +150,6 @@ pub struct Config {
    pub seed_path: Option<PathBuf>,
    pub database_max_connections: u32,
    pub api_token: String,
-    pub clickhouse_url: Option<String>,
-    pub clickhouse_user: Option<String>,
-    pub clickhouse_password: Option<String>,
-    pub clickhouse_database: Option<String>,
    pub invite_link_prefix: String,
    pub livekit_server: Option<String>,
    pub livekit_key: Option<String>,
@@ -180,6 +175,9 @@ pub struct Config {
    pub anthropic_api_key: Option<Arc<str>>,
    pub anthropic_staff_api_key: Option<Arc<str>>,
    pub llm_closed_beta_model_name: Option<Arc<str>>,
+    pub prediction_api_url: Option<Arc<str>>,
+    pub prediction_api_key: Option<Arc<str>>,
+    pub prediction_model: Option<Arc<str>>,
    pub zed_client_checksum_seed: Option<String>,
    pub slack_panics_webhook: Option<String>,
    pub auto_join_channel_id: Option<ChannelId>,
@@ -230,10 +228,9 @@ impl Config {
            anthropic_api_key: None,
            anthropic_staff_api_key: None,
            llm_closed_beta_model_name: None,
-            clickhouse_url: None,
-            clickhouse_user: None,
-            clickhouse_password: None,
-            clickhouse_database: None,
+            prediction_api_url: None,
+            prediction_api_key: None,
+            prediction_model: None,
            zed_client_checksum_seed: None,
            slack_panics_webhook: None,
            auto_join_channel_id: None,
@@ -283,7 +280,6 @@ pub struct AppState {
    pub stripe_billing: Option<Arc<StripeBilling>>,
    pub rate_limiter: Arc<RateLimiter>,
    pub executor: Executor,
-    pub clickhouse_client: Option<::clickhouse::Client>,
    pub kinesis_client: Option<::aws_sdk_kinesis::Client>,
    pub config: Config,
 }
@@ -337,10 +333,6 @@ impl AppState {
            stripe_client,
            rate_limiter: Arc::new(RateLimiter::new(db)),
            executor,
-            clickhouse_client: config
-                .clickhouse_url
-                .as_ref()
-                .and_then(|_| build_clickhouse_client(&config).log_err()),
            kinesis_client: if config.kinesis_access_key.is_some() {
                build_kinesis_client(&config).await.log_err()
            } else {
@@ -423,31 +415,3 @@ async fn build_kinesis_client(config: &Config) -> anyhow::Result<aws_sdk_kinesis

    Ok(aws_sdk_kinesis::Client::new(&kinesis_config))
 }
-
-fn build_clickhouse_client(config: &Config) -> anyhow::Result<::clickhouse::Client> {
-    Ok(::clickhouse::Client::default()
-        .with_url(
-            config
-                .clickhouse_url
-                .as_ref()
-                .ok_or_else(|| anyhow!("missing clickhouse_url"))?,
-        )
-        .with_user(
-            config
-                .clickhouse_user
-                .as_ref()
-                .ok_or_else(|| anyhow!("missing clickhouse_user"))?,
-        )
-        .with_password(
-            config
-                .clickhouse_password
-                .as_ref()
-                .ok_or_else(|| anyhow!("missing clickhouse_password"))?,
-        )
-        .with_database(
-            config
-                .clickhouse_database
-                .as_ref()
-                .ok_or_else(|| anyhow!("missing clickhouse_database"))?,
-        ))
-}
--- a/crates/collab/src/llm.rs
+++ b/crates/collab/src/llm.rs
@@ -1,14 +1,11 @@
 mod authorization;
 pub mod db;
-mod telemetry;
 mod token;

 use crate::api::events::SnowflakeRow;
 use crate::api::CloudflareIpCountryHeader;
 use crate::build_kinesis_client;
-use crate::{
-    build_clickhouse_client, db::UserId, executor::Executor, Cents, Config, Error, Result,
-};
+use crate::{db::UserId, executor::Executor, Cents, Config, Error, Result};
 use anyhow::{anyhow, Context as _};
 use authorization::authorize_access_to_language_model;
 use axum::routing::get;
@@ -29,7 +26,10 @@ use reqwest_client::ReqwestClient;
 use rpc::{
    proto::Plan, LanguageModelProvider, PerformCompletionParams, EXPIRED_LLM_TOKEN_HEADER_NAME,
 };
-use rpc::{ListModelsResponse, MAX_LLM_MONTHLY_SPEND_REACHED_HEADER_NAME};
+use rpc::{
+    ListModelsResponse, PredictEditsParams, PredictEditsResponse,
+    MAX_LLM_MONTHLY_SPEND_REACHED_HEADER_NAME,
+};
 use serde_json::json;
 use std::{
    pin::Pin,
@@ -37,7 +37,6 @@ use std::{
    task::{Context, Poll},
 };
 use strum::IntoEnumIterator;
-use telemetry::{report_llm_rate_limit, report_llm_usage, LlmRateLimitEventRow, LlmUsageEventRow};
 use tokio::sync::RwLock;
 use util::ResultExt;

@@ -49,7 +48,6 @@ pub struct LlmState {
    pub db: Arc<LlmDatabase>,
    pub http_client: ReqwestClient,
    pub kinesis_client: Option<aws_sdk_kinesis::Client>,
-    pub clickhouse_client: Option<clickhouse::Client>,
    active_user_count_by_model:
        RwLock<HashMap<(LanguageModelProvider, String), (DateTime<Utc>, ActiveUserCount)>>,
 }
@@ -86,10 +84,6 @@ impl LlmState {
            } else {
                None
            },
-            clickhouse_client: config
-                .clickhouse_url
-                .as_ref()
-                .and_then(|_| build_clickhouse_client(&config).log_err()),
            active_user_count_by_model: RwLock::new(HashMap::default()),
            config,
        };
@@ -126,6 +120,7 @@ pub fn routes() -> Router<(), Body> {
    Router::new()
        .route("/models", get(list_models))
        .route("/completion", post(perform_completion))
+        .route("/predict_edits", post(predict_edits))
        .layer(middleware::from_fn(validate_api_token))
 }

@@ -439,6 +434,59 @@ fn normalize_model_name(known_models: Vec<String>, name: String) -> String {
    }
 }

+async fn predict_edits(
+    Extension(state): Extension<Arc<LlmState>>,
+    Extension(claims): Extension<LlmTokenClaims>,
+    _country_code_header: Option<TypedHeader<CloudflareIpCountryHeader>>,
+    Json(params): Json<PredictEditsParams>,
+) -> Result<impl IntoResponse> {
+    if !claims.is_staff {
+        return Err(anyhow!("not found"))?;
+    }
+
+    let api_url = state
+        .config
+        .prediction_api_url
+        .as_ref()
+        .context("no PREDICTION_API_URL configured on the server")?;
+    let api_key = state
+        .config
+        .prediction_api_key
+        .as_ref()
+        .context("no PREDICTION_API_KEY configured on the server")?;
+    let model = state
+        .config
+        .prediction_model
+        .as_ref()
+        .context("no PREDICTION_MODEL configured on the server")?;
+    let prompt = include_str!("./llm/prediction_prompt.md")
+        .replace("<events>", &params.input_events)
+        .replace("<excerpt>", &params.input_excerpt);
+    let mut response = open_ai::complete_text(
+        &state.http_client,
+        api_url,
+        api_key,
+        open_ai::CompletionRequest {
+            model: model.to_string(),
+            prompt: prompt.clone(),
+            max_tokens: 1024,
+            temperature: 0.,
+            prediction: Some(open_ai::Prediction::Content {
+                content: params.input_excerpt,
+            }),
+            rewrite_speculation: Some(true),
+        },
+    )
+    .await?;
+    let choice = response
+        .choices
+        .pop()
+        .context("no output from completion response")?;
+    Ok(Json(PredictEditsResponse {
+        output_excerpt: choice.text,
+    }))
+}
+
 /// The maximum monthly spending an individual user can reach on the free tier
 /// before they have to pay.
 pub const FREE_TIER_MONTHLY_SPENDING_LIMIT: Cents = Cents::from_dollars(10);
@@ -573,34 +621,6 @@ async fn check_usage_limit(
            .await
            .log_err();

-            if let Some(client) = state.clickhouse_client.as_ref() {
-                report_llm_rate_limit(
-                    client,
-                    LlmRateLimitEventRow {
-                        time: Utc::now().timestamp_millis(),
-                        user_id: claims.user_id as i32,
-                        is_staff: claims.is_staff,
-                        plan: match claims.plan {
-                            Plan::Free => "free".to_string(),
-                            Plan::ZedPro => "zed_pro".to_string(),
-                        },
-                        model: model.name.clone(),
-                        provider: provider.to_string(),
-                        usage_measure: resource.to_string(),
-                        requests_this_minute: usage.requests_this_minute as u64,
-                        tokens_this_minute: usage.tokens_this_minute as u64,
-                        tokens_this_day: usage.tokens_this_day as u64,
-                        users_in_recent_minutes: users_in_recent_minutes as u64,
-                        users_in_recent_days: users_in_recent_days as u64,
-                        max_requests_per_minute: per_user_max_requests_per_minute as u64,
-                        max_tokens_per_minute: per_user_max_tokens_per_minute as u64,
-                        max_tokens_per_day: per_user_max_tokens_per_day as u64,
-                    },
-                )
-                .await
-                .log_err();
-            }
-
            return Err(Error::http(
                StatusCode::TOO_MANY_REQUESTS,
                format!("Rate limit exceeded. Maximum {} reached.", resource),
@@ -687,6 +707,8 @@ impl<S> Drop for TokenCountingStream<S> {
                );

                let properties = json!({
+                    "has_llm_subscription": claims.has_llm_subscription,
+                    "max_monthly_spend_in_cents": claims.max_monthly_spend_in_cents,
                    "plan": match claims.plan {
                        Plan::Free => "free".to_string(),
                        Plan::ZedPro => "zed_pro".to_string(),
@@ -706,44 +728,6 @@ impl<S> Drop for TokenCountingStream<S> {
                .write(&state.kinesis_client, &state.config.kinesis_stream)
                .await
                .log_err();
-
-                if let Some(clickhouse_client) = state.clickhouse_client.as_ref() {
-                    report_llm_usage(
-                        clickhouse_client,
-                        LlmUsageEventRow {
-                            time: Utc::now().timestamp_millis(),
-                            user_id: claims.user_id as i32,
-                            is_staff: claims.is_staff,
-                            plan: match claims.plan {
-                                Plan::Free => "free".to_string(),
-                                Plan::ZedPro => "zed_pro".to_string(),
-                            },
-                            model,
-                            provider: provider.to_string(),
-                            input_token_count: tokens.input as u64,
-                            cache_creation_input_token_count: tokens.input_cache_creation as u64,
-                            cache_read_input_token_count: tokens.input_cache_read as u64,
-                            output_token_count: tokens.output as u64,
-                            requests_this_minute: usage.requests_this_minute as u64,
-                            tokens_this_minute: usage.tokens_this_minute as u64,
-                            tokens_this_day: usage.tokens_this_day as u64,
-                            input_tokens_this_month: usage.tokens_this_month.input as u64,
-                            cache_creation_input_tokens_this_month: usage
-                                .tokens_this_month
-                                .input_cache_creation
-                                as u64,
-                            cache_read_input_tokens_this_month: usage
-                                .tokens_this_month
-                                .input_cache_read
-                                as u64,
-                            output_tokens_this_month: usage.tokens_this_month.output as u64,
-                            spending_this_month: usage.spending_this_month.0 as u64,
-                            lifetime_spending: usage.lifetime_spending.0 as u64,
-                        },
-                    )
-                    .await
-                    .log_err();
-                }
            }
        })
    }
--- a/crates/collab/src/llm/prediction_prompt.md
+++ b/crates/collab/src/llm/prediction_prompt.md
@@ -0,0 +1,12 @@
+Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
+
+### Instruction:
+You are a code completion assistant and your task is to analyze user edits and then rewrite an excerpt that the user provides, suggesting the appropriate edits within the excerpt, taking into account the cursor location.
+
+### Events:
+<events>
+
+### Input:
+<excerpt>
+
+### Response:
--- a/crates/collab/src/llm/telemetry.rs
+++ b/crates/collab/src/llm/telemetry.rs
@@ -1,65 +0,0 @@
-use anyhow::{Context, Result};
-use serde::Serialize;
-
-use crate::clickhouse::write_to_table;
-
-#[derive(Serialize, Debug, clickhouse::Row)]
-pub struct LlmUsageEventRow {
-    pub time: i64,
-    pub user_id: i32,
-    pub is_staff: bool,
-    pub plan: String,
-    pub model: String,
-    pub provider: String,
-    pub input_token_count: u64,
-    pub cache_creation_input_token_count: u64,
-    pub cache_read_input_token_count: u64,
-    pub output_token_count: u64,
-    pub requests_this_minute: u64,
-    pub tokens_this_minute: u64,
-    pub tokens_this_day: u64,
-    pub input_tokens_this_month: u64,
-    pub cache_creation_input_tokens_this_month: u64,
-    pub cache_read_input_tokens_this_month: u64,
-    pub output_tokens_this_month: u64,
-    pub spending_this_month: u64,
-    pub lifetime_spending: u64,
-}
-
-#[derive(Serialize, Debug, clickhouse::Row)]
-pub struct LlmRateLimitEventRow {
-    pub time: i64,
-    pub user_id: i32,
-    pub is_staff: bool,
-    pub plan: String,
-    pub model: String,
-    pub provider: String,
-    pub usage_measure: String,
-    pub requests_this_minute: u64,
-    pub tokens_this_minute: u64,
-    pub tokens_this_day: u64,
-    pub users_in_recent_minutes: u64,
-    pub users_in_recent_days: u64,
-    pub max_requests_per_minute: u64,
-    pub max_tokens_per_minute: u64,
-    pub max_tokens_per_day: u64,
-}
-
-pub async fn report_llm_usage(client: &clickhouse::Client, row: LlmUsageEventRow) -> Result<()> {
-    const LLM_USAGE_EVENTS_TABLE: &str = "llm_usage_events";
-    write_to_table(LLM_USAGE_EVENTS_TABLE, &[row], client)
-        .await
-        .with_context(|| format!("failed to upload to table '{LLM_USAGE_EVENTS_TABLE}'"))?;
-    Ok(())
-}
-
-pub async fn report_llm_rate_limit(
-    client: &clickhouse::Client,
-    row: LlmRateLimitEventRow,
-) -> Result<()> {
-    const LLM_RATE_LIMIT_EVENTS_TABLE: &str = "llm_rate_limit_events";
-    write_to_table(LLM_RATE_LIMIT_EVENTS_TABLE, &[row], client)
-        .await
-        .with_context(|| format!("failed to upload to table '{LLM_RATE_LIMIT_EVENTS_TABLE}'"))?;
-    Ok(())
-}
--- a/crates/collab/src/llm/token.rs
+++ b/crates/collab/src/llm/token.rs
@@ -17,10 +17,8 @@ pub struct LlmTokenClaims {
    pub exp: u64,
    pub jti: String,
    pub user_id: u64,
-    #[serde(default)]
    pub system_id: Option<String>,
-    #[serde(default)]
-    pub metrics_id: Option<Uuid>,
+    pub metrics_id: Uuid,
    pub github_user_login: String,
    pub is_staff: bool,
    pub has_llm_closed_beta_feature_flag: bool,
@@ -56,7 +54,7 @@ impl LlmTokenClaims {
            jti: uuid::Uuid::new_v4().to_string(),
            user_id: user.id.to_proto(),
            system_id,
-            metrics_id: Some(user.metrics_id),
+            metrics_id: user.metrics_id,
            github_user_login: user.github_login.clone(),
            is_staff,
            has_llm_closed_beta_feature_flag,
--- a/crates/collab/src/rpc.rs
+++ b/crates/collab/src/rpc.rs
@@ -309,6 +309,10 @@ impl Server {
            .add_request_handler(forward_read_only_project_request::<proto::ResolveInlayHint>)
            .add_request_handler(forward_read_only_project_request::<proto::OpenBufferByPath>)
            .add_request_handler(forward_read_only_project_request::<proto::GitBranches>)
+            .add_request_handler(forward_read_only_project_request::<proto::GetStagedText>)
+            .add_request_handler(
+                forward_mutating_project_request::<proto::RegisterBufferWithLanguageServers>,
+            )
            .add_request_handler(forward_mutating_project_request::<proto::UpdateGitBranch>)
            .add_request_handler(forward_mutating_project_request::<proto::GetCompletions>)
            .add_request_handler(
--- a/crates/collab/src/tests/editor_tests.rs
+++ b/crates/collab/src/tests/editor_tests.rs
@@ -994,10 +994,12 @@ async fn test_language_server_statuses(cx_a: &mut TestAppContext, cx_b: &mut Tes
            }),
        )
        .await;
-    let (project_a, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
+    let (project_a, _) = client_a.build_local_project("/dir", cx_a).await;

    let _buffer_a = project_a
-        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "main.rs"), cx))
+        .update(cx_a, |p, cx| {
+            p.open_local_buffer_with_lsp("/dir/main.rs", cx)
+        })
        .await
        .unwrap();

@@ -1587,7 +1589,6 @@ async fn test_mutual_editor_inlay_hint_cache_update(
        })
        .await
        .unwrap();
-    let fake_language_server = fake_language_servers.next().await.unwrap();
    let editor_a = workspace_a
        .update(cx_a, |workspace, cx| {
            workspace.open_path((worktree_id, "main.rs"), None, true, cx)
@@ -1597,6 +1598,8 @@ async fn test_mutual_editor_inlay_hint_cache_update(
        .downcast::<Editor>()
        .unwrap();

+    let fake_language_server = fake_language_servers.next().await.unwrap();
+
    // Set up the language server to return an additional inlay hint on each request.
    let edits_made = Arc::new(AtomicUsize::new(0));
    let closure_edits_made = Arc::clone(&edits_made);
--- a/crates/collab/src/tests/following_tests.rs
+++ b/crates/collab/src/tests/following_tests.rs
@@ -1,5 +1,5 @@
 #![allow(clippy::reversed_empty_ranges)]
-use crate::{rpc::RECONNECT_TIMEOUT, tests::TestServer};
+use crate::tests::TestServer;
 use call::{ActiveCall, ParticipantLocation};
 use client::ChannelId;
 use collab_ui::{
@@ -9,19 +9,14 @@ use collab_ui::{
 use editor::{Editor, ExcerptRange, MultiBuffer};
 use gpui::{
    point, BackgroundExecutor, BorrowAppContext, Context, Entity, SharedString, TestAppContext,
-    TestScreenCaptureSource, View, VisualContext, VisualTestContext,
+    View, VisualContext, VisualTestContext,
 };
 use language::Capability;
 use project::WorktreeSettings;
 use rpc::proto::PeerId;
 use serde_json::json;
 use settings::SettingsStore;
-use workspace::{
-    dock::{test::TestPanel, DockPosition},
-    item::{test::TestItem, ItemHandle as _},
-    shared_screen::SharedScreen,
-    SplitDirection, Workspace,
-};
+use workspace::{item::ItemHandle as _, SplitDirection, Workspace};

 use super::TestClient;

@@ -427,106 +422,118 @@ async fn test_basic_following(
        editor_a1.item_id()
    );

-    // Client B activates an external window, which causes a new screen-sharing item to be added to the pane.
-    let display = TestScreenCaptureSource::new();
-    active_call_b
-        .update(cx_b, |call, cx| call.set_location(None, cx))
-        .await
-        .unwrap();
-    cx_b.set_screen_capture_sources(vec![display]);
-    active_call_b
-        .update(cx_b, |call, cx| {
-            call.room()
+    // TODO: Re-enable this test once we can replace our swift Livekit SDK with the rust SDK
+    #[cfg(not(target_os = "macos"))]
+    {
+        use crate::rpc::RECONNECT_TIMEOUT;
+        use gpui::TestScreenCaptureSource;
+        use workspace::{
+            dock::{test::TestPanel, DockPosition},
+            item::test::TestItem,
+            shared_screen::SharedScreen,
+        };
+
+        // Client B activates an external window, which causes a new screen-sharing item to be added to the pane.
+        let display = TestScreenCaptureSource::new();
+        active_call_b
+            .update(cx_b, |call, cx| call.set_location(None, cx))
+            .await
+            .unwrap();
+        cx_b.set_screen_capture_sources(vec![display]);
+        active_call_b
+            .update(cx_b, |call, cx| {
+                call.room()
+                    .unwrap()
+                    .update(cx, |room, cx| room.share_screen(cx))
+            })
+            .await
+            .unwrap(); // This is what breaks
+        executor.run_until_parked();
+        let shared_screen = workspace_a.update(cx_a, |workspace, cx| {
+            workspace
+                .active_item(cx)
+                .expect("no active item")
+                .downcast::<SharedScreen>()
+                .expect("active item isn't a shared screen")
+        });
+
+        // Client B activates Zed again, which causes the previous editor to become focused again.
+        active_call_b
+            .update(cx_b, |call, cx| call.set_location(Some(&project_b), cx))
+            .await
+            .unwrap();
+        executor.run_until_parked();
+        workspace_a.update(cx_a, |workspace, cx| {
+            assert_eq!(
+                workspace.active_item(cx).unwrap().item_id(),
+                editor_a1.item_id()
+            )
+        });
+
+        // Client B activates a multibuffer that was created by following client A. Client A returns to that multibuffer.
+        workspace_b.update(cx_b, |workspace, cx| {
+            workspace.activate_item(&multibuffer_editor_b, true, true, cx)
+        });
+        executor.run_until_parked();
+        workspace_a.update(cx_a, |workspace, cx| {
+            assert_eq!(
+                workspace.active_item(cx).unwrap().item_id(),
+                multibuffer_editor_a.item_id()
+            )
+        });
+
+        // Client B activates a panel, and the previously-opened screen-sharing item gets activated.
+        let panel = cx_b.new_view(|cx| TestPanel::new(DockPosition::Left, cx));
+        workspace_b.update(cx_b, |workspace, cx| {
+            workspace.add_panel(panel, cx);
+            workspace.toggle_panel_focus::<TestPanel>(cx);
+        });
+        executor.run_until_parked();
+        assert_eq!(
+            workspace_a.update(cx_a, |workspace, cx| workspace
+                .active_item(cx)
                .unwrap()
-                .update(cx, |room, cx| room.share_screen(cx))
-        })
-        .await
-        .unwrap();
-    executor.run_until_parked();
-    let shared_screen = workspace_a.update(cx_a, |workspace, cx| {
-        workspace
-            .active_item(cx)
-            .expect("no active item")
-            .downcast::<SharedScreen>()
-            .expect("active item isn't a shared screen")
-    });
+                .item_id()),
+            shared_screen.item_id()
+        );

-    // Client B activates Zed again, which causes the previous editor to become focused again.
-    active_call_b
-        .update(cx_b, |call, cx| call.set_location(Some(&project_b), cx))
-        .await
-        .unwrap();
-    executor.run_until_parked();
-    workspace_a.update(cx_a, |workspace, cx| {
+        // Toggling the focus back to the pane causes client A to return to the multibuffer.
+        workspace_b.update(cx_b, |workspace, cx| {
+            workspace.toggle_panel_focus::<TestPanel>(cx);
+        });
+        executor.run_until_parked();
+        workspace_a.update(cx_a, |workspace, cx| {
+            assert_eq!(
+                workspace.active_item(cx).unwrap().item_id(),
+                multibuffer_editor_a.item_id()
+            )
+        });
+
+        // Client B activates an item that doesn't implement following,
+        // so the previously-opened screen-sharing item gets activated.
+        let unfollowable_item = cx_b.new_view(TestItem::new);
+        workspace_b.update(cx_b, |workspace, cx| {
+            workspace.active_pane().update(cx, |pane, cx| {
+                pane.add_item(Box::new(unfollowable_item), true, true, None, cx)
+            })
+        });
+        executor.run_until_parked();
        assert_eq!(
-            workspace.active_item(cx).unwrap().item_id(),
-            editor_a1.item_id()
-        )
-    });
+            workspace_a.update(cx_a, |workspace, cx| workspace
+                .active_item(cx)
+                .unwrap()
+                .item_id()),
+            shared_screen.item_id()
+        );

-    // Client B activates a multibuffer that was created by following client A. Client A returns to that multibuffer.
-    workspace_b.update(cx_b, |workspace, cx| {
-        workspace.activate_item(&multibuffer_editor_b, true, true, cx)
-    });
-    executor.run_until_parked();
-    workspace_a.update(cx_a, |workspace, cx| {
+        // Following interrupts when client B disconnects.
+        client_b.disconnect(&cx_b.to_async());
+        executor.advance_clock(RECONNECT_TIMEOUT);
        assert_eq!(
-            workspace.active_item(cx).unwrap().item_id(),
-            multibuffer_editor_a.item_id()
-        )
-    });
-
-    // Client B activates a panel, and the previously-opened screen-sharing item gets activated.
-    let panel = cx_b.new_view(|cx| TestPanel::new(DockPosition::Left, cx));
-    workspace_b.update(cx_b, |workspace, cx| {
-        workspace.add_panel(panel, cx);
-        workspace.toggle_panel_focus::<TestPanel>(cx);
-    });
-    executor.run_until_parked();
-    assert_eq!(
-        workspace_a.update(cx_a, |workspace, cx| workspace
-            .active_item(cx)
-            .unwrap()
-            .item_id()),
-        shared_screen.item_id()
-    );
-
-    // Toggling the focus back to the pane causes client A to return to the multibuffer.
-    workspace_b.update(cx_b, |workspace, cx| {
-        workspace.toggle_panel_focus::<TestPanel>(cx);
-    });
-    executor.run_until_parked();
-    workspace_a.update(cx_a, |workspace, cx| {
-        assert_eq!(
-            workspace.active_item(cx).unwrap().item_id(),
-            multibuffer_editor_a.item_id()
-        )
-    });
-
-    // Client B activates an item that doesn't implement following,
-    // so the previously-opened screen-sharing item gets activated.
-    let unfollowable_item = cx_b.new_view(TestItem::new);
-    workspace_b.update(cx_b, |workspace, cx| {
-        workspace.active_pane().update(cx, |pane, cx| {
-            pane.add_item(Box::new(unfollowable_item), true, true, None, cx)
-        })
-    });
-    executor.run_until_parked();
-    assert_eq!(
-        workspace_a.update(cx_a, |workspace, cx| workspace
-            .active_item(cx)
-            .unwrap()
-            .item_id()),
-        shared_screen.item_id()
-    );
-
-    // Following interrupts when client B disconnects.
-    client_b.disconnect(&cx_b.to_async());
-    executor.advance_clock(RECONNECT_TIMEOUT);
-    assert_eq!(
-        workspace_a.update(cx_a, |workspace, _| workspace.leader_for_pane(&pane_a)),
-        None
-    );
+            workspace_a.update(cx_a, |workspace, _| workspace.leader_for_pane(&pane_a)),
+            None
+        );
+    }
 }

 #[gpui::test]
--- a/crates/collab/src/tests/integration_tests.rs
+++ b/crates/collab/src/tests/integration_tests.rs
@@ -16,7 +16,7 @@ use futures::{channel::mpsc, StreamExt as _};
 use git::repository::GitFileStatus;
 use gpui::{
    px, size, AppContext, BackgroundExecutor, Model, Modifiers, MouseButton, MouseDownEvent,
-    TestAppContext, TestScreenCaptureSource, UpdateGlobal,
+    TestAppContext, UpdateGlobal,
 };
 use language::{
    language_settings::{
@@ -240,56 +240,60 @@ async fn test_basic_calls(
        }
    );

-    // User A shares their screen
-    let display = TestScreenCaptureSource::new();
-    let events_b = active_call_events(cx_b);
-    let events_c = active_call_events(cx_c);
-    cx_a.set_screen_capture_sources(vec![display]);
-    active_call_a
-        .update(cx_a, |call, cx| {
-            call.room()
-                .unwrap()
-                .update(cx, |room, cx| room.share_screen(cx))
-        })
-        .await
-        .unwrap();
+    // TODO: Re-enable this test once we can replace our swift Livekit SDK with the rust SDK
+    #[cfg(not(target_os = "macos"))]
+    {
+        // User A shares their screen
+        let display = gpui::TestScreenCaptureSource::new();
+        let events_b = active_call_events(cx_b);
+        let events_c = active_call_events(cx_c);
+        cx_a.set_screen_capture_sources(vec![display]);
+        active_call_a
+            .update(cx_a, |call, cx| {
+                call.room()
+                    .unwrap()
+                    .update(cx, |room, cx| room.share_screen(cx))
+            })
+            .await
+            .unwrap();

-    executor.run_until_parked();
+        executor.run_until_parked();

-    // User B observes the remote screen sharing track.
-    assert_eq!(events_b.borrow().len(), 1);
-    let event_b = events_b.borrow().first().unwrap().clone();
-    if let call::room::Event::RemoteVideoTracksChanged { participant_id } = event_b {
-        assert_eq!(participant_id, client_a.peer_id().unwrap());
+        // User B observes the remote screen sharing track.
+        assert_eq!(events_b.borrow().len(), 1);
+        let event_b = events_b.borrow().first().unwrap().clone();
+        if let call::room::Event::RemoteVideoTracksChanged { participant_id } = event_b {
+            assert_eq!(participant_id, client_a.peer_id().unwrap());

-        room_b.read_with(cx_b, |room, _| {
-            assert_eq!(
-                room.remote_participants()[&client_a.user_id().unwrap()]
-                    .video_tracks
-                    .len(),
-                1
-            );
-        });
-    } else {
-        panic!("unexpected event")
-    }
+            room_b.read_with(cx_b, |room, _| {
+                assert_eq!(
+                    room.remote_participants()[&client_a.user_id().unwrap()]
+                        .video_tracks
+                        .len(),
+                    1
+                );
+            });
+        } else {
+            panic!("unexpected event")
+        }

-    // User C observes the remote screen sharing track.
-    assert_eq!(events_c.borrow().len(), 1);
-    let event_c = events_c.borrow().first().unwrap().clone();
-    if let call::room::Event::RemoteVideoTracksChanged { participant_id } = event_c {
-        assert_eq!(participant_id, client_a.peer_id().unwrap());
+        // User C observes the remote screen sharing track.
+        assert_eq!(events_c.borrow().len(), 1);
+        let event_c = events_c.borrow().first().unwrap().clone();
+        if let call::room::Event::RemoteVideoTracksChanged { participant_id } = event_c {
+            assert_eq!(participant_id, client_a.peer_id().unwrap());

-        room_c.read_with(cx_c, |room, _| {
-            assert_eq!(
-                room.remote_participants()[&client_a.user_id().unwrap()]
-                    .video_tracks
-                    .len(),
-                1
-            );
-        });
-    } else {
-        panic!("unexpected event")
+            room_c.read_with(cx_c, |room, _| {
+                assert_eq!(
+                    room.remote_participants()[&client_a.user_id().unwrap()]
+                        .video_tracks
+                        .len(),
+                    1
+                );
+            });
+        } else {
+            panic!("unexpected event")
+        }
    }

    // User A leaves the room.
@@ -2570,19 +2574,23 @@ async fn test_git_diff_base_change(
        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
        .await
        .unwrap();
+    let change_set_local_a = project_local
+        .update(cx_a, |p, cx| {
+            p.open_unstaged_changes(buffer_local_a.clone(), cx)
+        })
+        .await
+        .unwrap();

    // Wait for it to catch up to the new diff
    executor.run_until_parked();
-
-    // Smoke test diffing
-
-    buffer_local_a.read_with(cx_a, |buffer, _| {
+    change_set_local_a.read_with(cx_a, |change_set, cx| {
+        let buffer = buffer_local_a.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(diff_base.as_str())
        );
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
            &diff_base,
            &[(1..2, "", "two\n")],
@@ -2594,25 +2602,30 @@ async fn test_git_diff_base_change(
        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
        .await
        .unwrap();
+    let change_set_remote_a = project_remote
+        .update(cx_b, |p, cx| {
+            p.open_unstaged_changes(buffer_remote_a.clone(), cx)
+        })
+        .await
+        .unwrap();

    // Wait remote buffer to catch up to the new diff
    executor.run_until_parked();
-
-    // Smoke test diffing
-
-    buffer_remote_a.read_with(cx_b, |buffer, _| {
+    change_set_remote_a.read_with(cx_b, |change_set, cx| {
+        let buffer = buffer_remote_a.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(diff_base.as_str())
        );
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
            &diff_base,
            &[(1..2, "", "two\n")],
        );
    });

+    // Update the staged text of the open buffer
    client_a.fs().set_index_for_repo(
        Path::new("/dir/.git"),
        &[(Path::new("a.txt"), new_diff_base.clone())],
@@ -2620,40 +2633,35 @@ async fn test_git_diff_base_change(

    // Wait for buffer_local_a to receive it
    executor.run_until_parked();
-
-    // Smoke test new diffing
-
-    buffer_local_a.read_with(cx_a, |buffer, _| {
+    change_set_local_a.read_with(cx_a, |change_set, cx| {
+        let buffer = buffer_local_a.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(new_diff_base.as_str())
        );
-
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
-            &diff_base,
+            &new_diff_base,
            &[(2..3, "", "three\n")],
        );
    });

-    // Smoke test B
-
-    buffer_remote_a.read_with(cx_b, |buffer, _| {
+    change_set_remote_a.read_with(cx_b, |change_set, cx| {
+        let buffer = buffer_remote_a.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(new_diff_base.as_str())
        );
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
-            &diff_base,
+            &new_diff_base,
            &[(2..3, "", "three\n")],
        );
    });

-    //Nested git dir
-
+    // Nested git dir
    let diff_base = "
        one
        three
@@ -2676,19 +2684,23 @@ async fn test_git_diff_base_change(
        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "sub/b.txt"), cx))
        .await
        .unwrap();
+    let change_set_local_b = project_local
+        .update(cx_a, |p, cx| {
+            p.open_unstaged_changes(buffer_local_b.clone(), cx)
+        })
+        .await
+        .unwrap();

    // Wait for it to catch up to the new diff
    executor.run_until_parked();
-
-    // Smoke test diffing
-
-    buffer_local_b.read_with(cx_a, |buffer, _| {
+    change_set_local_b.read_with(cx_a, |change_set, cx| {
+        let buffer = buffer_local_b.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(diff_base.as_str())
        );
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
            &diff_base,
            &[(1..2, "", "two\n")],
@@ -2700,25 +2712,29 @@ async fn test_git_diff_base_change(
        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "sub/b.txt"), cx))
        .await
        .unwrap();
+    let change_set_remote_b = project_remote
+        .update(cx_b, |p, cx| {
+            p.open_unstaged_changes(buffer_remote_b.clone(), cx)
+        })
+        .await
+        .unwrap();

-    // Wait remote buffer to catch up to the new diff
    executor.run_until_parked();
-
-    // Smoke test diffing
-
-    buffer_remote_b.read_with(cx_b, |buffer, _| {
+    change_set_remote_b.read_with(cx_b, |change_set, cx| {
+        let buffer = buffer_remote_b.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(diff_base.as_str())
        );
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
            &diff_base,
            &[(1..2, "", "two\n")],
        );
    });

+    // Update the staged text
    client_a.fs().set_index_for_repo(
        Path::new("/dir/sub/.git"),
        &[(Path::new("b.txt"), new_diff_base.clone())],
@@ -2726,43 +2742,30 @@ async fn test_git_diff_base_change(

    // Wait for buffer_local_b to receive it
    executor.run_until_parked();
-
-    // Smoke test new diffing
-
-    buffer_local_b.read_with(cx_a, |buffer, _| {
+    change_set_local_b.read_with(cx_a, |change_set, cx| {
+        let buffer = buffer_local_b.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(new_diff_base.as_str())
        );
-        println!("{:?}", buffer.as_rope().to_string());
-        println!("{:?}", buffer.diff_base());
-        println!(
-            "{:?}",
-            buffer
-                .snapshot()
-                .git_diff_hunks_in_row_range(0..4)
-                .collect::<Vec<_>>()
-        );
-
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
-            &diff_base,
+            &new_diff_base,
            &[(2..3, "", "three\n")],
        );
    });

-    // Smoke test B
-
-    buffer_remote_b.read_with(cx_b, |buffer, _| {
+    change_set_remote_b.read_with(cx_b, |change_set, cx| {
+        let buffer = buffer_remote_b.read(cx);
        assert_eq!(
-            buffer.diff_base().map(|rope| rope.to_string()).as_deref(),
+            change_set.base_text_string(cx).as_deref(),
            Some(new_diff_base.as_str())
        );
        git::diff::assert_hunks(
-            buffer.snapshot().git_diff_hunks_in_row_range(0..4),
+            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
            buffer,
-            &diff_base,
+            &new_diff_base,
            &[(2..3, "", "three\n")],
        );
    });
@@ -3888,13 +3891,7 @@ async fn test_collaborating_with_diagnostics(
    // Cause the language server to start.
    let _buffer = project_a
        .update(cx_a, |project, cx| {
-            project.open_buffer(
-                ProjectPath {
-                    worktree_id,
-                    path: Path::new("other.rs").into(),
-                },
-                cx,
-            )
+            project.open_local_buffer_with_lsp("/a/other.rs", cx)
        })
        .await
        .unwrap();
@@ -4173,7 +4170,9 @@ async fn test_collaborating_with_lsp_progress_updates_and_diagnostics_ordering(
    // Join the project as client B and open all three files.
    let project_b = client_b.join_remote_project(project_id, cx_b).await;
    let guest_buffers = futures::future::try_join_all(file_names.iter().map(|file_name| {
-        project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, file_name), cx))
+        project_b.update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, file_name), cx)
+        })
    }))
    .await
    .unwrap();
@@ -4227,7 +4226,7 @@ async fn test_collaborating_with_lsp_progress_updates_and_diagnostics_ordering(
            cx.subscribe(&project_b, move |_, _, event, cx| {
                if let project::Event::DiskBasedDiagnosticsFinished { .. } = event {
                    disk_based_diagnostics_finished.store(true, SeqCst);
-                    for buffer in &guest_buffers {
+                    for (buffer, _) in &guest_buffers {
                        assert_eq!(
                            buffer
                                .read(cx)
@@ -4348,7 +4347,6 @@ async fn test_formatting_buffer(
    cx_a: &mut TestAppContext,
    cx_b: &mut TestAppContext,
 ) {
-    executor.allow_parking();
    let mut server = TestServer::start(executor.clone()).await;
    let client_a = server.create_client(cx_a, "user_a").await;
    let client_b = server.create_client(cx_b, "user_b").await;
@@ -4376,10 +4374,16 @@ async fn test_formatting_buffer(
        .await
        .unwrap();
    let project_b = client_b.join_remote_project(project_id, cx_b).await;
+    let lsp_store_b = project_b.update(cx_b, |p, _| p.lsp_store());

-    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx));
-    let buffer_b = cx_b.executor().spawn(open_buffer).await.unwrap();
+    let buffer_b = project_b
+        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx))
+        .await
+        .unwrap();

+    let _handle = lsp_store_b.update(cx_b, |lsp_store, cx| {
+        lsp_store.register_buffer_with_language_servers(&buffer_b, cx)
+    });
    let fake_language_server = fake_language_servers.next().await.unwrap();
    fake_language_server.handle_request::<lsp::request::Formatting, _, _>(|_, _| async move {
        Ok(Some(vec![
@@ -4428,6 +4432,8 @@ async fn test_formatting_buffer(
            });
        });
    });
+
+    executor.allow_parking();
    project_b
        .update(cx_b, |project, cx| {
            project.format(
@@ -4500,8 +4506,12 @@ async fn test_prettier_formatting_buffer(
        .await
        .unwrap();
    let project_b = client_b.join_remote_project(project_id, cx_b).await;
-    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.ts"), cx));
-    let buffer_b = cx_b.executor().spawn(open_buffer).await.unwrap();
+    let (buffer_b, _) = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "a.ts"), cx)
+        })
+        .await
+        .unwrap();

    cx_a.update(|cx| {
        SettingsStore::update_global(cx, |store, cx| {
@@ -4617,8 +4627,12 @@ async fn test_definition(
    let project_b = client_b.join_remote_project(project_id, cx_b).await;

    // Open the file on client B.
-    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx));
-    let buffer_b = cx_b.executor().spawn(open_buffer).await.unwrap();
+    let (buffer_b, _handle) = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "a.rs"), cx)
+        })
+        .await
+        .unwrap();

    // Request the definition of a symbol as the guest.
    let fake_language_server = fake_language_servers.next().await.unwrap();
@@ -4762,8 +4776,12 @@ async fn test_references(
    let project_b = client_b.join_remote_project(project_id, cx_b).await;

    // Open the file on client B.
-    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "one.rs"), cx));
-    let buffer_b = cx_b.executor().spawn(open_buffer).await.unwrap();
+    let (buffer_b, _handle) = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "one.rs"), cx)
+        })
+        .await
+        .unwrap();

    // Request references to a symbol as the guest.
    let fake_language_server = fake_language_servers.next().await.unwrap();
@@ -5009,8 +5027,12 @@ async fn test_document_highlights(
    let project_b = client_b.join_remote_project(project_id, cx_b).await;

    // Open the file on client B.
-    let open_b = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "main.rs"), cx));
-    let buffer_b = cx_b.executor().spawn(open_b).await.unwrap();
+    let (buffer_b, _handle) = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "main.rs"), cx)
+        })
+        .await
+        .unwrap();

    // Request document highlights as the guest.
    let fake_language_server = fake_language_servers.next().await.unwrap();
@@ -5127,8 +5149,12 @@ async fn test_lsp_hover(
    let project_b = client_b.join_remote_project(project_id, cx_b).await;

    // Open the file as the guest
-    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "main.rs"), cx));
-    let buffer_b = cx_b.executor().spawn(open_buffer).await.unwrap();
+    let (buffer_b, _handle) = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "main.rs"), cx)
+        })
+        .await
+        .unwrap();

    let mut servers_with_hover_requests = HashMap::default();
    for i in 0..language_server_names.len() {
@@ -5303,9 +5329,12 @@ async fn test_project_symbols(
    let project_b = client_b.join_remote_project(project_id, cx_b).await;

    // Cause the language server to start.
-    let open_buffer_task =
-        project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "one.rs"), cx));
-    let _buffer = cx_b.executor().spawn(open_buffer_task).await.unwrap();
+    let _buffer = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "one.rs"), cx)
+        })
+        .await
+        .unwrap();

    let fake_language_server = fake_language_servers.next().await.unwrap();
    fake_language_server.handle_request::<lsp::WorkspaceSymbolRequest, _, _>(|_, _| async move {
@@ -5397,8 +5426,12 @@ async fn test_open_buffer_while_getting_definition_pointing_to_it(
        .unwrap();
    let project_b = client_b.join_remote_project(project_id, cx_b).await;

-    let open_buffer_task = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx));
-    let buffer_b1 = cx_b.executor().spawn(open_buffer_task).await.unwrap();
+    let (buffer_b1, _lsp) = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "a.rs"), cx)
+        })
+        .await
+        .unwrap();

    let fake_language_server = fake_language_servers.next().await.unwrap();
    fake_language_server.handle_request::<lsp::request::GotoDefinition, _, _>(|_, _| async move {
@@ -5414,13 +5447,22 @@ async fn test_open_buffer_while_getting_definition_pointing_to_it(
    let buffer_b2;
    if rng.gen() {
        definitions = project_b.update(cx_b, |p, cx| p.definition(&buffer_b1, 23, cx));
-        buffer_b2 = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "b.rs"), cx));
+        (buffer_b2, _) = project_b
+            .update(cx_b, |p, cx| {
+                p.open_buffer_with_lsp((worktree_id, "b.rs"), cx)
+            })
+            .await
+            .unwrap();
    } else {
-        buffer_b2 = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "b.rs"), cx));
+        (buffer_b2, _) = project_b
+            .update(cx_b, |p, cx| {
+                p.open_buffer_with_lsp((worktree_id, "b.rs"), cx)
+            })
+            .await
+            .unwrap();
        definitions = project_b.update(cx_b, |p, cx| p.definition(&buffer_b1, 23, cx));
    }

-    let buffer_b2 = buffer_b2.await.unwrap();
    let definitions = definitions.await.unwrap();
    assert_eq!(definitions.len(), 1);
    assert_eq!(definitions[0].target.buffer, buffer_b2);
@@ -6025,6 +6067,8 @@ async fn test_contact_requests(
    }
 }

+// TODO: Re-enable this test once we can replace our swift Livekit SDK with the rust SDK
+#[cfg(not(target_os = "macos"))]
 #[gpui::test(iterations = 10)]
 async fn test_join_call_after_screen_was_shared(
    executor: BackgroundExecutor,
@@ -6067,7 +6111,7 @@ async fn test_join_call_after_screen_was_shared(
    assert_eq!(call_b.calling_user.github_login, "user_a");

    // User A shares their screen
-    let display = TestScreenCaptureSource::new();
+    let display = gpui::TestScreenCaptureSource::new();
    cx_a.set_screen_capture_sources(vec![display]);
    active_call_a
        .update(cx_a, |call, cx| {
--- a/crates/collab/src/tests/random_project_collaboration_tests.rs
+++ b/crates/collab/src/tests/random_project_collaboration_tests.rs
@@ -1336,10 +1336,24 @@ impl RandomizedTest for ProjectCollaborationTest {
                        (_, None) => panic!("guest's file is None, hosts's isn't"),
                    }

-                    let host_diff_base = host_buffer
-                        .read_with(host_cx, |b, _| b.diff_base().map(ToString::to_string));
-                    let guest_diff_base = guest_buffer
-                        .read_with(client_cx, |b, _| b.diff_base().map(ToString::to_string));
+                    let host_diff_base = host_project.read_with(host_cx, |project, cx| {
+                        project
+                            .buffer_store()
+                            .read(cx)
+                            .get_unstaged_changes(host_buffer.read(cx).remote_id())
+                            .unwrap()
+                            .read(cx)
+                            .base_text_string(cx)
+                    });
+                    let guest_diff_base = guest_project.read_with(client_cx, |project, cx| {
+                        project
+                            .buffer_store()
+                            .read(cx)
+                            .get_unstaged_changes(guest_buffer.read(cx).remote_id())
+                            .unwrap()
+                            .read(cx)
+                            .base_text_string(cx)
+                    });
                    assert_eq!(
                            guest_diff_base, host_diff_base,
                            "guest {} diff base does not match host's for path {path:?} in project {project_id}",
--- a/crates/collab/src/tests/remote_editing_collaboration_tests.rs
+++ b/crates/collab/src/tests/remote_editing_collaboration_tests.rs
@@ -426,8 +426,10 @@ async fn test_ssh_collaboration_formatting_with_prettier(
    executor.run_until_parked();

    // Opens the buffer and formats it
-    let buffer_b = project_b
-        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.ts"), cx))
+    let (buffer_b, _handle) = project_b
+        .update(cx_b, |p, cx| {
+            p.open_buffer_with_lsp((worktree_id, "a.ts"), cx)
+        })
        .await
        .expect("user B opens buffer for formatting");

--- a/crates/collab/src/tests/test_server.rs
+++ b/crates/collab/src/tests/test_server.rs
@@ -518,7 +518,6 @@ impl TestServer {
            stripe_billing: None,
            rate_limiter: Arc::new(RateLimiter::new(test_db.db().clone())),
            executor,
-            clickhouse_client: None,
            kinesis_client: None,
            config: Config {
                http_port: 0,
@@ -546,10 +545,9 @@ impl TestServer {
                anthropic_api_key: None,
                anthropic_staff_api_key: None,
                llm_closed_beta_model_name: None,
-                clickhouse_url: None,
-                clickhouse_user: None,
-                clickhouse_password: None,
-                clickhouse_database: None,
+                prediction_api_url: None,
+                prediction_api_key: None,
+                prediction_model: None,
                zed_client_checksum_seed: None,
                slack_panics_webhook: None,
                auto_join_channel_id: None,
@@ -591,7 +589,7 @@ impl Deref for TestClient {
 }

 impl TestClient {
-    pub fn fs(&self) -> &FakeFs {
+    pub fn fs(&self) -> Arc<FakeFs> {
        self.app_state.fs.as_fake()
    }

--- a/crates/collab_ui/src/collab_panel.rs
+++ b/crates/collab_ui/src/collab_panel.rs
@@ -841,7 +841,7 @@ impl CollabPanel {
        ListItem::new(SharedString::from(user.github_login.clone()))
            .start_slot(Avatar::new(user.avatar_uri.clone()))
            .child(Label::new(user.github_login.clone()))
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .end_slot(if is_pending {
                Label::new("Calling").color(Color::Muted).into_any_element()
            } else if is_current_user {
@@ -894,7 +894,7 @@ impl CollabPanel {
        .into();

        ListItem::new(project_id as usize)
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .on_click(cx.listener(move |this, _, cx| {
                this.workspace
                    .update(cx, |workspace, cx| {
@@ -924,7 +924,7 @@ impl CollabPanel {
        let id = peer_id.map_or(usize::MAX, |id| id.as_u64() as usize);

        ListItem::new(("screen", id))
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .start_slot(
                h_flex()
                    .gap_1()
@@ -964,7 +964,7 @@ impl CollabPanel {
        let channel_store = self.channel_store.read(cx);
        let has_channel_buffer_changed = channel_store.has_channel_buffer_changed(channel_id);
        ListItem::new("channel-notes")
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .on_click(cx.listener(move |this, _, cx| {
                this.open_channel_notes(channel_id, cx);
            }))
@@ -996,7 +996,7 @@ impl CollabPanel {
        let channel_store = self.channel_store.read(cx);
        let has_messages_notification = channel_store.has_new_messages(channel_id);
        ListItem::new("channel-chat")
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .on_click(cx.listener(move |this, _, cx| {
                this.join_channel_chat(channel_id, cx);
            }))
@@ -2253,7 +2253,7 @@ impl CollabPanel {
                })
                .inset(true)
                .end_slot::<AnyElement>(button)
-                .selected(is_selected),
+                .toggle_state(is_selected),
        )
    }

@@ -2270,7 +2270,7 @@ impl CollabPanel {
        let item = ListItem::new(github_login.clone())
            .indent_level(1)
            .indent_step_size(px(20.))
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .child(
                h_flex()
                    .w_full()
@@ -2381,7 +2381,7 @@ impl CollabPanel {
        ListItem::new(github_login.clone())
            .indent_level(1)
            .indent_step_size(px(20.))
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .child(
                h_flex()
                    .w_full()
@@ -2425,7 +2425,7 @@ impl CollabPanel {
        ];

        ListItem::new(("channel-invite", channel.id.0 as usize))
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .child(
                h_flex()
                    .w_full()
@@ -2448,7 +2448,7 @@ impl CollabPanel {
        ListItem::new("contact-placeholder")
            .child(Icon::new(IconName::Plus))
            .child(Label::new("Add a Contact"))
-            .selected(is_selected)
+            .toggle_state(is_selected)
            .on_click(cx.listener(|this, _, cx| this.toggle_contact_finder(cx)))
    }

@@ -2547,7 +2547,7 @@ impl CollabPanel {
                    // Add one level of depth for the disclosure arrow.
                    .indent_level(depth + 1)
                    .indent_step_size(px(20.))
-                    .selected(is_selected || is_active)
+                    .toggle_state(is_selected || is_active)
                    .toggle(disclosed)
                    .on_toggle(
                        cx.listener(move |this, _, cx| {
--- a/crates/collab_ui/src/collab_panel/channel_modal.rs
+++ b/crates/collab_ui/src/collab_panel/channel_modal.rs
@@ -89,15 +89,15 @@ impl ChannelModal {
        cx.notify()
    }

-    fn set_channel_visibility(&mut self, selection: &Selection, cx: &mut ViewContext<Self>) {
+    fn set_channel_visibility(&mut self, selection: &ToggleState, cx: &mut ViewContext<Self>) {
        self.channel_store.update(cx, |channel_store, cx| {
            channel_store
                .set_channel_visibility(
                    self.channel_id,
                    match selection {
-                        Selection::Unselected => ChannelVisibility::Members,
-                        Selection::Selected => ChannelVisibility::Public,
-                        Selection::Indeterminate => return,
+                        ToggleState::Unselected => ChannelVisibility::Members,
+                        ToggleState::Selected => ChannelVisibility::Public,
+                        ToggleState::Indeterminate => return,
                    },
                    cx,
                )
@@ -159,9 +159,9 @@ impl Render for ChannelModal {
                                "is-public",
                                Label::new("Public").size(LabelSize::Small),
                                if visibility == ChannelVisibility::Public {
-                                    ui::Selection::Selected
+                                    ui::ToggleState::Selected
                                } else {
-                                    ui::Selection::Unselected
+                                    ui::ToggleState::Unselected
                                },
                                cx.listener(Self::set_channel_visibility),
                            ))
@@ -386,7 +386,7 @@ impl PickerDelegate for ChannelModalDelegate {
            ListItem::new(ix)
                .inset(true)
                .spacing(ListItemSpacing::Sparse)
-                .selected(selected)
+                .toggle_state(selected)
                .start_slot(Avatar::new(user.avatar_uri.clone()))
                .child(Label::new(user.github_login.clone()))
                .end_slot(h_flex().gap_2().map(|slot| {
--- a/crates/collab_ui/src/collab_panel/contact_finder.rs
+++ b/crates/collab_ui/src/collab_panel/contact_finder.rs
@@ -151,7 +151,7 @@ impl PickerDelegate for ContactFinderDelegate {
            ListItem::new(ix)
                .inset(true)
                .spacing(ListItemSpacing::Sparse)
-                .selected(selected)
+                .toggle_state(selected)
                .start_slot(Avatar::new(user.avatar_uri.clone()))
                .child(Label::new(user.github_login.clone()))
                .end_slot::<Icon>(icon_path.map(Icon::from_path)),
--- a/crates/command_palette/src/command_palette.rs
+++ b/crates/command_palette/src/command_palette.rs
@@ -397,7 +397,7 @@ impl PickerDelegate for CommandPaletteDelegate {
            ListItem::new(ix)
                .inset(true)
                .spacing(ListItemSpacing::Sparse)
-                .selected(selected)
+                .toggle_state(selected)
                .child(
                    h_flex()
                        .w_full()
--- a/crates/copilot/Cargo.toml
+++ b/crates/copilot/Cargo.toml
@@ -59,18 +59,21 @@ workspace.workspace = true
 async-std = { version = "1.12.0", features = ["unstable"] }

 [dev-dependencies]
-clock.workspace = true
 indoc.workspace = true
 serde_json.workspace = true
+clock = { workspace = true, features = ["test-support"] }
+client = { workspace = true, features = ["test-support"] }
 collections = { workspace = true, features = ["test-support"] }
 editor = { workspace = true, features = ["test-support"] }
 fs = { workspace = true, features = ["test-support"] }
 gpui = { workspace = true, features = ["test-support"] }
+http_client = { workspace = true, features = ["test-support"] }
 language = { workspace = true, features = ["test-support"] }
 lsp = { workspace = true, features = ["test-support"] }
+node_runtime = { workspace = true, features = ["test-support"] }
 project = { workspace = true, features = ["test-support"] }
 rpc = { workspace = true, features = ["test-support"] }
 settings = { workspace = true, features = ["test-support"] }
 theme = { workspace = true, features = ["test-support"] }
 util = { workspace = true, features = ["test-support"] }
-http_client = { workspace = true, features = ["test-support"] }
+workspace = { workspace = true, features = ["test-support"] }
--- a/crates/copilot/src/copilot_chat.rs
+++ b/crates/copilot/src/copilot_chat.rs
@@ -6,13 +6,12 @@ use anyhow::{anyhow, Result};
 use chrono::DateTime;
 use fs::Fs;
 use futures::{io::BufReader, stream::BoxStream, AsyncBufReadExt, AsyncReadExt, StreamExt};
-use gpui::{AppContext, AsyncAppContext, Global};
+use gpui::{prelude::*, AppContext, AsyncAppContext, Global};
 use http_client::{AsyncBody, HttpClient, Method, Request as HttpRequest};
 use paths::home_dir;
 use serde::{Deserialize, Serialize};
 use settings::watch_config_file;
 use strum::EnumIter;
-use ui::Context;

 pub const COPILOT_CHAT_COMPLETION_URL: &str = "https://api.githubcopilot.com/chat/completions";
 pub const COPILOT_CHAT_AUTH_URL: &str = "https://api.github.com/copilot_internal/v2/token";
--- a/crates/copilot/src/copilot_completion_provider.rs
+++ b/crates/copilot/src/copilot_completion_provider.rs
@@ -1,14 +1,13 @@
 use crate::{Completion, Copilot};
 use anyhow::Result;
-use client::telemetry::Telemetry;
 use gpui::{AppContext, EntityId, Model, ModelContext, Task};
-use inline_completion::{CompletionProposal, Direction, InlayProposal, InlineCompletionProvider};
+use inline_completion::{Direction, InlineCompletion, InlineCompletionProvider};
 use language::{
    language_settings::{all_language_settings, AllLanguageSettings},
    Buffer, OffsetRangeExt, ToOffset,
 };
 use settings::Settings;
-use std::{path::Path, sync::Arc, time::Duration};
+use std::{path::Path, time::Duration};

 pub const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);

@@ -21,7 +20,6 @@ pub struct CopilotCompletionProvider {
    pending_refresh: Task<Result<()>>,
    pending_cycling_refresh: Task<Result<()>>,
    copilot: Model<Copilot>,
-    telemetry: Option<Arc<Telemetry>>,
 }

 impl CopilotCompletionProvider {
@@ -35,15 +33,9 @@ impl CopilotCompletionProvider {
            pending_refresh: Task::ready(Ok(())),
            pending_cycling_refresh: Task::ready(Ok(())),
            copilot,
-            telemetry: None,
        }
    }

-    pub fn with_telemetry(mut self, telemetry: Arc<Telemetry>) -> Self {
-        self.telemetry = Some(telemetry);
-        self
-    }
-
    fn active_completion(&self) -> Option<&Completion> {
        self.completions.get(self.active_completion_index)
    }
@@ -190,23 +182,10 @@ impl InlineCompletionProvider for CopilotCompletionProvider {
            self.copilot
                .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
                .detach_and_log_err(cx);
-            if self.active_completion().is_some() {
-                if let Some(telemetry) = self.telemetry.as_ref() {
-                    telemetry.report_inline_completion_event(
-                        Self::name().to_string(),
-                        true,
-                        self.file_extension.clone(),
-                    );
-                }
-            }
        }
    }

-    fn discard(
-        &mut self,
-        should_report_inline_completion_event: bool,
-        cx: &mut ModelContext<Self>,
-    ) {
+    fn discard(&mut self, cx: &mut ModelContext<Self>) {
        let settings = AllLanguageSettings::get_global(cx);

        let copilot_enabled = settings.inline_completions_enabled(None, None, cx);
@@ -220,24 +199,14 @@ impl InlineCompletionProvider for CopilotCompletionProvider {
                copilot.discard_completions(&self.completions, cx)
            })
            .detach_and_log_err(cx);
-
-        if should_report_inline_completion_event && self.active_completion().is_some() {
-            if let Some(telemetry) = self.telemetry.as_ref() {
-                telemetry.report_inline_completion_event(
-                    Self::name().to_string(),
-                    false,
-                    self.file_extension.clone(),
-                );
-            }
-        }
    }

-    fn active_completion_text<'a>(
-        &'a self,
+    fn suggest(
+        &mut self,
        buffer: &Model<Buffer>,
        cursor_position: language::Anchor,
-        cx: &'a AppContext,
-    ) -> Option<CompletionProposal> {
+        cx: &mut ModelContext<Self>,
+    ) -> Option<InlineCompletion> {
        let buffer_id = buffer.entity_id();
        let buffer = buffer.read(cx);
        let completion = self.active_completion()?;
@@ -267,13 +236,9 @@ impl InlineCompletionProvider for CopilotCompletionProvider {
            if completion_text.trim().is_empty() {
                None
            } else {
-                Some(CompletionProposal {
-                    inlays: vec![InlayProposal::Suggestion(
-                        cursor_position.bias_right(buffer),
-                        completion_text.into(),
-                    )],
-                    text: completion_text.into(),
-                    delete_range: None,
+                let position = cursor_position.bias_right(buffer);
+                Some(InlineCompletion {
+                    edits: vec![(position..position, completion_text.into())],
                })
            }
        } else {
@@ -331,7 +296,6 @@ mod tests {
            editor.set_inline_completion_provider(Some(copilot_provider), cx)
        });

-        // When inserting, ensure autocompletion is favored over Copilot suggestions.
        cx.set_state(indoc! {"
            oneˇ
            two
@@ -358,8 +322,9 @@ mod tests {
        );
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
+            // We want to show both: the inline completion and the completion menu
            assert!(editor.context_menu_visible());
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());

            // Confirming a completion inserts it and hides the context menu, without showing
            // the copilot suggestion afterwards.
@@ -368,45 +333,12 @@ mod tests {
                .unwrap()
                .detach();
            assert!(!editor.context_menu_visible());
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "one.completion_a\ntwo\nthree\n");
            assert_eq!(editor.display_text(cx), "one.completion_a\ntwo\nthree\n");
        });

-        // Ensure Copilot suggestions are shown right away if no autocompletion is available.
-        cx.set_state(indoc! {"
-            oneˇ
-            two
-            three
-        "});
-        cx.simulate_keystroke(".");
-        drop(handle_completion_request(
-            &mut cx,
-            indoc! {"
-                one.|<>
-                two
-                three
-            "},
-            vec![],
-        ));
-        handle_copilot_completion_request(
-            &copilot_lsp,
-            vec![crate::request::Completion {
-                text: "one.copilot1".into(),
-                range: lsp::Range::new(lsp::Position::new(0, 0), lsp::Position::new(0, 4)),
-                ..Default::default()
-            }],
-            vec![],
-        );
-        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
-        cx.update_editor(|editor, cx| {
-            assert!(!editor.context_menu_visible());
-            assert!(editor.has_active_inline_completion(cx));
-            assert_eq!(editor.display_text(cx), "one.copilot1\ntwo\nthree\n");
-            assert_eq!(editor.text(cx), "one.\ntwo\nthree\n");
-        });
-
-        // Reset editor, and ensure autocompletion is still favored over Copilot suggestions.
+        // Reset editor and test that accepting completions works
        cx.set_state(indoc! {"
            oneˇ
            two
@@ -434,22 +366,17 @@ mod tests {
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
            assert!(editor.context_menu_visible());
-            assert!(!editor.has_active_inline_completion(cx));
-
-            // When hiding the context menu, the Copilot suggestion becomes visible.
-            editor.cancel(&Default::default(), cx);
-            assert!(!editor.context_menu_visible());
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.copilot1\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.\ntwo\nthree\n");
        });

-        // Ensure existing completion is interpolated when inserting again.
+        // Ensure existing inline completion is interpolated when inserting again.
        cx.simulate_keystroke("c");
        executor.run_until_parked();
        cx.update_editor(|editor, cx| {
            assert!(!editor.context_menu_visible());
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.copilot1\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.c\ntwo\nthree\n");
        });
@@ -467,25 +394,25 @@ mod tests {
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
            assert!(!editor.context_menu_visible());
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.copilot2\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.c\ntwo\nthree\n");

            // Canceling should remove the active Copilot suggestion.
            editor.cancel(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.c\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.c\ntwo\nthree\n");

            // After canceling, tabbing shouldn't insert the previously shown suggestion.
            editor.tab(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.c   \ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.c   \ntwo\nthree\n");

            // When undoing the previously active suggestion is shown again.
            editor.undo(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.copilot2\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.c\ntwo\nthree\n");
        });
@@ -493,25 +420,25 @@ mod tests {
        // If an edit occurs outside of this editor, the suggestion is still correctly interpolated.
        cx.update_buffer(|buffer, cx| buffer.edit([(5..5, "o")], None, cx));
        cx.update_editor(|editor, cx| {
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.copilot2\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.co\ntwo\nthree\n");

            // AcceptInlineCompletion when there is an active suggestion inserts it.
            editor.accept_inline_completion(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.copilot2\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.copilot2\ntwo\nthree\n");

            // When undoing the previously active suggestion is shown again.
            editor.undo(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.copilot2\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.co\ntwo\nthree\n");

            // Hide suggestion.
            editor.cancel(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.co\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.co\ntwo\nthree\n");
        });
@@ -520,7 +447,7 @@ mod tests {
        // we won't make it visible.
        cx.update_buffer(|buffer, cx| buffer.edit([(6..6, "p")], None, cx));
        cx.update_editor(|editor, cx| {
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one.cop\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.cop\ntwo\nthree\n");
        });
@@ -545,19 +472,19 @@ mod tests {
        cx.update_editor(|editor, cx| editor.next_inline_completion(&Default::default(), cx));
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "fn foo() {\n    let x = 4;\n}");
            assert_eq!(editor.text(cx), "fn foo() {\n  \n}");

            // Tabbing inside of leading whitespace inserts indentation without accepting the suggestion.
            editor.tab(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "fn foo() {\n    \n}");
            assert_eq!(editor.display_text(cx), "fn foo() {\n    let x = 4;\n}");

            // Using AcceptInlineCompletion again accepts the suggestion.
            editor.accept_inline_completion(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "fn foo() {\n    let x = 4;\n}");
            assert_eq!(editor.display_text(cx), "fn foo() {\n    let x = 4;\n}");
        });
@@ -615,17 +542,17 @@ mod tests {
        );
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());

            // Accepting the first word of the suggestion should only accept the first word and still show the rest.
            editor.accept_partial_inline_completion(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "one.copilot\ntwo\nthree\n");
            assert_eq!(editor.display_text(cx), "one.copilot1\ntwo\nthree\n");

            // Accepting next word should accept the non-word and copilot suggestion should be gone
            editor.accept_partial_inline_completion(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "one.copilot1\ntwo\nthree\n");
            assert_eq!(editor.display_text(cx), "one.copilot1\ntwo\nthree\n");
        });
@@ -657,11 +584,11 @@ mod tests {
        );
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());

            // Accepting the first word (non-word) of the suggestion should only accept the first word and still show the rest.
            editor.accept_partial_inline_completion(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "one.123. \ntwo\nthree\n");
            assert_eq!(
                editor.display_text(cx),
@@ -670,7 +597,7 @@ mod tests {

            // Accepting next word should accept the next word and copilot suggestion should still exist
            editor.accept_partial_inline_completion(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "one.123. copilot\ntwo\nthree\n");
            assert_eq!(
                editor.display_text(cx),
@@ -679,7 +606,7 @@ mod tests {

            // Accepting the whitespace should accept the non-word/whitespaces with newline and copilot suggestion should be gone
            editor.accept_partial_inline_completion(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.text(cx), "one.123. copilot\n 456\ntwo\nthree\n");
            assert_eq!(
                editor.display_text(cx),
@@ -730,29 +657,29 @@ mod tests {
        cx.update_editor(|editor, cx| editor.next_inline_completion(&Default::default(), cx));
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one\ntwo.foo()\nthree\n");
            assert_eq!(editor.text(cx), "one\ntw\nthree\n");

            editor.backspace(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one\ntwo.foo()\nthree\n");
            assert_eq!(editor.text(cx), "one\nt\nthree\n");

            editor.backspace(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one\ntwo.foo()\nthree\n");
            assert_eq!(editor.text(cx), "one\n\nthree\n");

            // Deleting across the original suggestion range invalidates it.
            editor.backspace(&Default::default(), cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one\nthree\n");
            assert_eq!(editor.text(cx), "one\nthree\n");

            // Undoing the deletion restores the suggestion.
            editor.undo(&Default::default(), cx);
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one\ntwo.foo()\nthree\n");
            assert_eq!(editor.text(cx), "one\n\nthree\n");
        });
@@ -813,7 +740,7 @@ mod tests {
        });
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        _ = editor.update(cx, |editor, cx| {
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(
                editor.display_text(cx),
                "\n\n\na = 1\nb = 2 + a\n\n\n\n\n\nc = 3\nd = 4\n\n"
@@ -835,7 +762,7 @@ mod tests {
            editor.change_selections(None, cx, |s| {
                s.select_ranges([Point::new(4, 5)..Point::new(4, 5)])
            });
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(
                editor.display_text(cx),
                "\n\n\na = 1\nb = 2\n\n\n\n\n\nc = 3\nd = 4\n\n"
@@ -844,7 +771,7 @@ mod tests {

            // Type a character, ensuring we don't even try to interpolate the previous suggestion.
            editor.handle_input(" ", cx);
-            assert!(!editor.has_active_inline_completion(cx));
+            assert!(!editor.has_active_inline_completion());
            assert_eq!(
                editor.display_text(cx),
                "\n\n\na = 1\nb = 2\n\n\n\n\n\nc = 3\nd = 4 \n\n"
@@ -855,7 +782,7 @@ mod tests {
        // Ensure the new suggestion is displayed when the debounce timeout expires.
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        _ = editor.update(cx, |editor, cx| {
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(
                editor.display_text(cx),
                "\n\n\na = 1\nb = 2\n\n\n\n\n\nc = 3\nd = 4 + c\n\n"
@@ -915,8 +842,8 @@ mod tests {
        cx.update_editor(|editor, cx| editor.next_inline_completion(&Default::default(), cx));
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
-            assert!(!editor.context_menu_visible(), "Even there are some completions available, those are not triggered when active copilot suggestion is present");
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(!editor.context_menu_visible());
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one\ntwo.foo()\nthree\n");
            assert_eq!(editor.text(cx), "one\ntw\nthree\n");
        });
@@ -943,7 +870,7 @@ mod tests {
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
            assert!(!editor.context_menu_visible());
-            assert!(editor.has_active_inline_completion(cx));
+            assert!(editor.has_active_inline_completion());
            assert_eq!(editor.display_text(cx), "one\ntwo.foo()\nthree\n");
            assert_eq!(editor.text(cx), "one\ntwo\nthree\n");
        });
@@ -969,15 +896,9 @@ mod tests {
        );
        executor.advance_clock(COPILOT_DEBOUNCE_TIMEOUT);
        cx.update_editor(|editor, cx| {
-            assert!(
-                editor.context_menu_visible(),
-                "On completion trigger input, the completions should be fetched and visible"
-            );
-            assert!(
-                !editor.has_active_inline_completion(cx),
-                "On completion trigger input, copilot suggestion should be dismissed"
-            );
-            assert_eq!(editor.display_text(cx), "one\ntwo.\nthree\n");
+            assert!(editor.context_menu_visible());
+            assert!(editor.has_active_inline_completion(),);
+            assert_eq!(editor.display_text(cx), "one\ntwo.foo()\nthree\n");
            assert_eq!(editor.text(cx), "one\ntwo.\nthree\n");
        });
    }
@@ -998,7 +919,7 @@ mod tests {
            "/test",
            json!({
                ".env": "SECRET=something\n",
-                "README.md": "hello\n"
+                "README.md": "hello\nworld\nhow\nare\nyou\ntoday"
            }),
        )
        .await;
@@ -1030,7 +951,7 @@ mod tests {
            multibuffer.push_excerpts(
                public_buffer.clone(),
                [ExcerptRange {
-                    context: Point::new(0, 0)..Point::new(1, 0),
+                    context: Point::new(0, 0)..Point::new(6, 0),
                    primary: None,
                }],
                cx,
@@ -1038,6 +959,7 @@ mod tests {
            multibuffer
        });
        let editor = cx.add_window(|cx| Editor::for_multibuffer(multibuffer, None, true, cx));
+        editor.update(cx, |editor, cx| editor.focus(cx)).unwrap();
        let copilot_provider = cx.new_model(|_| CopilotCompletionProvider::new(copilot));
        editor
            .update(cx, |editor, cx| {
@@ -1073,7 +995,7 @@ mod tests {

        _ = editor.update(cx, |editor, cx| {
            editor.change_selections(None, cx, |s| {
-                s.select_ranges([Point::new(2, 0)..Point::new(2, 0)])
+                s.select_ranges([Point::new(5, 0)..Point::new(5, 0)])
            });
            editor.refresh_inline_completion(true, false, cx);
        });
--- a/crates/diagnostics/src/diagnostics.rs
+++ b/crates/diagnostics/src/diagnostics.rs
@@ -16,8 +16,8 @@ use editor::{
 };
 use gpui::{
    actions, div, svg, AnyElement, AnyView, AppContext, Context, EventEmitter, FocusHandle,
-    FocusableView, HighlightStyle, InteractiveElement, IntoElement, Model, ParentElement, Render,
-    SharedString, Styled, StyledText, Subscription, Task, View, ViewContext, VisualContext,
+    FocusableView, Global, HighlightStyle, InteractiveElement, IntoElement, Model, ParentElement,
+    Render, SharedString, Styled, StyledText, Subscription, Task, View, ViewContext, VisualContext,
    WeakView, WindowContext,
 };
 use language::{
@@ -46,6 +46,9 @@ use workspace::{

 actions!(diagnostics, [Deploy, ToggleWarnings]);

+struct IncludeWarnings(bool);
+impl Global for IncludeWarnings {}
+
 pub fn init(cx: &mut AppContext) {
    ProjectDiagnosticsSettings::register(cx);
    cx.observe_new_views(ProjectDiagnosticsEditor::register)
@@ -117,6 +120,7 @@ impl ProjectDiagnosticsEditor {

    fn new_with_context(
        context: u32,
+        include_warnings: bool,
        project_handle: Model<Project>,
        workspace: WeakView<Workspace>,
        cx: &mut ViewContext<Self>,
@@ -134,27 +138,16 @@ impl ProjectDiagnosticsEditor {
                    language_server_id,
                    path,
                } => {
-                    let max_severity = this.max_severity();
-                    let has_diagnostics_to_display = project.read(cx).lsp_store().read(cx).diagnostics_for_buffer(path)
-                        .into_iter().flatten()
-                        .filter(|(server_id, _)| language_server_id == server_id)
-                        .flat_map(|(_, diagnostics)| diagnostics)
-                        .any(|diagnostic| diagnostic.diagnostic.severity <= max_severity);
+                    this.paths_to_update
+                        .insert((path.clone(), Some(*language_server_id)));
+                    this.summary = project.read(cx).diagnostic_summary(false, cx);
+                    cx.emit(EditorEvent::TitleChanged);

-                    if has_diagnostics_to_display {
-                        this.paths_to_update
-                            .insert((path.clone(), Some(*language_server_id)));
-                        this.summary = project.read(cx).diagnostic_summary(false, cx);
-                        cx.emit(EditorEvent::TitleChanged);
-
-                        if this.editor.focus_handle(cx).contains_focused(cx) || this.focus_handle.contains_focused(cx) {
-                            log::debug!("diagnostics updated for server {language_server_id}, path {path:?}. recording change");
-                        } else {
-                            log::debug!("diagnostics updated for server {language_server_id}, path {path:?}. updating excerpts");
-                            this.update_stale_excerpts(cx);
-                        }
+                    if this.editor.focus_handle(cx).contains_focused(cx) || this.focus_handle.contains_focused(cx) {
+                        log::debug!("diagnostics updated for server {language_server_id}, path {path:?}. recording change");
                    } else {
-                        log::debug!("diagnostics updated for server {language_server_id}, path {path:?}. no diagnostics to display");
+                        log::debug!("diagnostics updated for server {language_server_id}, path {path:?}. updating excerpts");
+                        this.update_stale_excerpts(cx);
                    }
                }
                _ => {}
@@ -186,19 +179,24 @@ impl ProjectDiagnosticsEditor {
            }
        })
        .detach();
+        cx.observe_global::<IncludeWarnings>(|this, cx| {
+            this.include_warnings = cx.global::<IncludeWarnings>().0;
+            this.update_all_excerpts(cx);
+        })
+        .detach();

        let project = project_handle.read(cx);
        let mut this = Self {
            project: project_handle.clone(),
            context,
            summary: project.diagnostic_summary(false, cx),
+            include_warnings,
            workspace,
            excerpts,
            focus_handle,
            editor,
            path_states: Default::default(),
            paths_to_update: Default::default(),
-            include_warnings: ProjectDiagnosticsSettings::get_global(cx).include_warnings,
            update_excerpts_task: None,
            _subscription: project_event_subscription,
        };
@@ -243,11 +241,13 @@ impl ProjectDiagnosticsEditor {

    fn new(
        project_handle: Model<Project>,
+        include_warnings: bool,
        workspace: WeakView<Workspace>,
        cx: &mut ViewContext<Self>,
    ) -> Self {
        Self::new_with_context(
            editor::DEFAULT_MULTIBUFFER_CONTEXT,
+            include_warnings,
            project_handle,
            workspace,
            cx,
@@ -259,8 +259,19 @@ impl ProjectDiagnosticsEditor {
            workspace.activate_item(&existing, true, true, cx);
        } else {
            let workspace_handle = cx.view().downgrade();
+
+            let include_warnings = match cx.try_global::<IncludeWarnings>() {
+                Some(include_warnings) => include_warnings.0,
+                None => ProjectDiagnosticsSettings::get_global(cx).include_warnings,
+            };
+
            let diagnostics = cx.new_view(|cx| {
-                ProjectDiagnosticsEditor::new(workspace.project().clone(), workspace_handle, cx)
+                ProjectDiagnosticsEditor::new(
+                    workspace.project().clone(),
+                    include_warnings,
+                    workspace_handle,
+                    cx,
+                )
            });
            workspace.add_item_to_active_pane(Box::new(diagnostics), None, true, cx);
        }
@@ -268,6 +279,7 @@ impl ProjectDiagnosticsEditor {

    fn toggle_warnings(&mut self, _: &ToggleWarnings, cx: &mut ViewContext<Self>) {
        self.include_warnings = !self.include_warnings;
+        cx.set_global(IncludeWarnings(self.include_warnings));
        self.update_all_excerpts(cx);
        cx.notify();
    }
@@ -340,12 +352,16 @@ impl ProjectDiagnosticsEditor {
            ExcerptId::min()
        };

-        let max_severity = self.max_severity();
        let path_state = &mut self.path_states[path_ix];
        let mut new_group_ixs = Vec::new();
        let mut blocks_to_add = Vec::new();
        let mut blocks_to_remove = HashSet::default();
        let mut first_excerpt_id = None;
+        let max_severity = if self.include_warnings {
+            DiagnosticSeverity::WARNING
+        } else {
+            DiagnosticSeverity::ERROR
+        };
        let excerpts_snapshot = self.excerpts.update(cx, |excerpts, cx| {
            let mut old_groups = mem::take(&mut path_state.diagnostic_groups)
                .into_iter()
@@ -634,14 +650,6 @@ impl ProjectDiagnosticsEditor {
            prev_path = Some(path);
        }
    }
-
-    fn max_severity(&self) -> DiagnosticSeverity {
-        if self.include_warnings {
-            DiagnosticSeverity::WARNING
-        } else {
-            DiagnosticSeverity::ERROR
-        }
-    }
 }

 impl FocusableView for ProjectDiagnosticsEditor {
@@ -740,7 +748,12 @@ impl Item for ProjectDiagnosticsEditor {
        Self: Sized,
    {
        Some(cx.new_view(|cx| {
-            ProjectDiagnosticsEditor::new(self.project.clone(), self.workspace.clone(), cx)
+            ProjectDiagnosticsEditor::new(
+                self.project.clone(),
+                self.include_warnings,
+                self.workspace.clone(),
+                cx,
+            )
        }))
    }

--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`<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-file-diff"><path d="M15 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7Z"/><path d="M9 10h6"/><path d="M12 13V7"/><path d="M9 17h6"/></svg>`
				`@@ -0,0 +1 @@`
				`<svg width="16" height="16" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M4.56 4.502 3.25 3.027V11.5h1.5V6.973l2.69 3.025 1.31 1.475V7.918l3.306 3.582h2.042L8.55 5.491 7.25 4.081V7.528L4.56 4.502Z" fill="#000"/></svg>`