Checkpoint

2024-12-11 11:10:03 -05:00 · 2024-12-11 11:10:03 -05:00 · 2024-12-11 11:10:03 -05:00 · 2024-12-11 11:10:03 -05:00 · 2024-12-11 11:10:03 -05:00 · 2024-12-11 11:10:03 -05:00
379 changed files with 26878 additions and 9292 deletions
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -13,6 +13,12 @@ rustflags = ["-C", "link-arg=-fuse-ld=mold"]
 linker = "clang"
 rustflags = ["-C", "link-arg=-fuse-ld=mold"]

+[target.aarch64-apple-darwin]
+rustflags = ["-C", "link-args=-Objc -all_load"]
+
+[target.x86_64-apple-darwin]
+rustflags = ["-C", "link-args=-Objc -all_load"]
+
 # This cfg will reduce the size of `windows::core::Error` from 16 bytes to 4 bytes
 [target.'cfg(target_os = "windows")']
 rustflags = ["--cfg", "windows_slim_errors"]
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -113,6 +113,12 @@ jobs:
          script/check-licenses
          script/generate-licenses /tmp/zed_licenses_output

+      - name: Check for new vulnerable dependencies
+        if: github.event_name == 'pull_request'
+        uses: actions/dependency-review-action@3b139cfc5fae8b618d3eae3675e383bb1769c019 # v4
+        with:
+          license-check: false
+
      - name: Run tests
        uses: ./.github/actions/run_tests

@@ -123,7 +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
@@ -155,8 +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/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/.zed/settings.json
+++ b/.zed/settings.json
@@ -2,8 +2,7 @@
  "languages": {
    "Markdown": {
      "tab_size": 2,
-      "formatter": "prettier",
-      "format_on_save": "on"
+      "formatter": "prettier"
    },
    "TOML": {
      "formatter": "prettier",
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -65,8 +65,9 @@ members = [
    "crates/language_selector",
    "crates/language_tools",
    "crates/languages",
-    "crates/live_kit_client",
-    "crates/live_kit_server",
+    "crates/livekit_client",
+    "crates/livekit_client_macos",
+    "crates/livekit_server",
    "crates/lsp",
    "crates/markdown",
    "crates/markdown_preview",
@@ -140,6 +141,8 @@ members = [
    "crates/worktree",
    "crates/zed",
    "crates/zed_actions",
+    "crates/zeta",
+    "crates/git_ui",

    #
    # Extensions
@@ -225,6 +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" }
@@ -248,8 +252,9 @@ language_models = { path = "crates/language_models" }
 language_selector = { path = "crates/language_selector" }
 language_tools = { path = "crates/language_tools" }
 languages = { path = "crates/languages" }
-live_kit_client = { path = "crates/live_kit_client" }
-live_kit_server = { path = "crates/live_kit_server" }
+livekit_client = { path = "crates/livekit_client" }
+livekit_client_macos = { path = "crates/livekit_client_macos" }
+livekit_server = { path = "crates/livekit_server" }
 lsp = { path = "crates/lsp" }
 markdown = { path = "crates/markdown" }
 markdown_preview = { path = "crates/markdown_preview" }
@@ -323,6 +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
@@ -356,7 +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"
@@ -382,20 +387,23 @@ heed = { version = "0.20.1", features = ["read-txn-no-tls"] }
 hex = "0.4.3"
 html5ever = "0.27.0"
 hyper = "0.14"
+http = "1.1"
 ignore = "0.4.22"
 image = "0.25.1"
 indexmap = { version = "1.6.2", features = ["serde"] }
 indoc = "2"
 itertools = "0.13.0"
 jsonwebtoken = "9.3"
-jupyter-protocol = { version = "0.3.0" }
-jupyter-websocket-client = { version = "0.5.0" }
+jupyter-protocol = { version = "0.5.0" }
+jupyter-websocket-client = { version = "0.8.0" }
 libc = "0.2"
+libsqlite3-sys = { version = "0.30.1", features = ["bundled"] }
 linkify = "0.10.0"
+livekit = { git = "https://github.com/zed-industries/rust-sdks", rev="799f10133d93ba2a88642cd480d01ec4da53408c", features = ["dispatcher", "services-dispatcher", "rustls-tls-native-roots"], default-features = false }
 log = { version = "0.4.16", features = ["kv_unstable_serde", "serde"] }
 markup5ever_rcdom = "0.3.0"
 nanoid = "0.4"
-nbformat = { version = "0.7.0" }
+nbformat = { version = "0.9.0" }
 nix = "0.29"
 num-format = "0.4.4"
 once_cell = "1.19.0"
@@ -429,7 +437,7 @@ reqwest = { git = "https://github.com/zed-industries/reqwest.git", rev = "fd110f
    "stream",
 ] }
 rsa = "0.9.6"
-runtimelib = { version = "0.22.0", default-features = false, features = [
+runtimelib = { version = "0.24.0", default-features = false, features = [
    "async-dispatcher-runtime",
 ] }
 rustc-demangle = "0.1.23"
@@ -501,7 +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 = [
@@ -570,6 +578,10 @@ features = [
    "Win32_UI_WindowsAndMessaging",
 ]

+# TODO livekit https://github.com/RustAudio/cpal/pull/891
+[patch.crates-io]
+cpal = { git = "https://github.com/zed-industries/cpal", rev = "fd8bc2fd39f1f5fdee5a0690656caff9a26d9d50" }
+
 [profile.dev]
 split-debuginfo = "unpacked"
 debug = "limited"
@@ -672,6 +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/audio.svg
+++ b/assets/icons/file_icons/audio.svg
@@ -1,4 +1,8 @@
 <svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M9.20721 10.8551C7.67694 10.8551 6.33401 11.0424 5.52243 11.1878C5.15088 11.2543 4.808 10.9114 4.87454 10.5399C5.01987 9.72825 5.20721 8.38532 5.20721 6.85505C5.20721 5.69375 5.09932 4.64034 4.98377 3.84516C4.9431 3.56522 5.40267 3.3722 5.5684 3.60145C6.30333 4.61809 7.44022 6.08806 8.70721 7.35505C9.9742 8.62204 11.4442 9.75893 12.4608 10.4939C12.69 10.6596 12.497 11.1192 12.2171 11.0785C11.4219 10.963 10.3685 10.8551 9.20721 10.8551Z" fill="black" stroke="black" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>
-<path d="M7.11129 10.6816L5.28324 8.85355C5.08798 8.65829 4.7714 8.65829 4.57613 8.85355L3.35355 10.0761C3.15829 10.2714 3.15829 10.588 3.35355 10.7832L5.1816 12.6113C5.37686 12.8066 5.69345 12.8066 5.88871 12.6113L7.11129 11.3887C7.30655 11.1934 7.30655 10.8769 7.11129 10.6816Z" fill="black"/>
+<path d="M3.5 6.66666V8.66666" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M5.5 5V11" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M7.5 3V13" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M9.5 5.33334V10" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M11.5 4V12" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M13.5 6.66666V8.66666" stroke="black" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
 </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/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"
    }
  },
  {
--- 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",
@@ -93,8 +96,6 @@
      "ctrl-e": "editor::MoveToEndOfLine",
      "cmd-up": "editor::MoveToBeginning",
      "cmd-down": "editor::MoveToEnd",
-      "ctrl-home": "editor::MoveToBeginning",
-      "ctrl-end": "editor::MoveToEnd",
      "shift-up": "editor::SelectUp",
      "ctrl-shift-p": "editor::SelectUp",
      "shift-down": "editor::SelectDown",
@@ -133,6 +134,7 @@
  },
  {
    "context": "Editor && mode == full",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "editor::Newline",
      "shift-enter": "editor::Newline",
@@ -150,20 +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",
@@ -172,12 +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"
@@ -185,6 +192,7 @@
  },
  {
    "context": "AssistantPanel",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-k c": "assistant::CopyCode",
      "cmd-g": "search::SelectNextMatch",
@@ -197,6 +205,7 @@
  },
  {
    "context": "ContextEditor > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-enter": "assistant::Assist",
      "cmd-shift-enter": "assistant::Edit",
@@ -211,18 +220,22 @@
  },
  {
    "context": "AssistantPanel2",
+    "use_key_equivalents": true,
    "bindings": {
-      "cmd-n": "assistant2::NewThread"
+      "cmd-n": "assistant2::NewThread",
+      "cmd-shift-h": "assistant2::OpenHistory"
    }
  },
  {
    "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",
@@ -231,6 +244,7 @@
  },
  {
    "context": "BufferSearchBar",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "buffer_search::Dismiss",
      "tab": "buffer_search::FocusEditor",
@@ -244,6 +258,7 @@
  },
  {
    "context": "BufferSearchBar && in_replace > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "search::ReplaceNext",
      "cmd-enter": "search::ReplaceAll"
@@ -251,6 +266,7 @@
  },
  {
    "context": "BufferSearchBar && !in_replace > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "up": "search::PreviousHistoryQuery",
      "down": "search::NextHistoryQuery"
@@ -258,6 +274,7 @@
  },
  {
    "context": "ProjectSearchBar",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "project_search::ToggleFocus",
      "cmd-shift-j": "project_search::ToggleFilters",
@@ -269,6 +286,7 @@
  },
  {
    "context": "ProjectSearchBar > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "up": "search::PreviousHistoryQuery",
      "down": "search::NextHistoryQuery"
@@ -276,6 +294,7 @@
  },
  {
    "context": "ProjectSearchBar && in_replace > Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "enter": "search::ReplaceNext",
      "cmd-enter": "search::ReplaceAll"
@@ -283,6 +302,7 @@
  },
  {
    "context": "ProjectSearchView",
+    "use_key_equivalents": true,
    "bindings": {
      "escape": "project_search::ToggleFocus",
      "cmd-shift-j": "project_search::ToggleFilters",
@@ -293,6 +313,7 @@
  },
  {
    "context": "Pane",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-{": "pane::ActivatePrevItem",
      "cmd-}": "pane::ActivateNextItem",
@@ -321,6 +342,7 @@
  // Bindings from VS Code
  {
    "context": "Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-[": "editor::Outdent",
      "cmd-]": "editor::Indent",
@@ -384,6 +406,7 @@
  },
  {
    "context": "Editor && mode == full",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-shift-o": "outline::Toggle",
      "ctrl-g": "go_to_line::Toggle"
@@ -391,6 +414,7 @@
  },
  {
    "context": "Pane",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-1": ["pane::ActivateItem", 0],
      "ctrl-2": ["pane::ActivateItem", 1],
@@ -410,6 +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 }],
@@ -465,6 +490,7 @@
  },
  {
    "context": "Workspace && !Terminal",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-shift-r": "task::Spawn",
      "cmd-alt-r": "task::Rerun",
@@ -475,6 +501,7 @@
  // Bindings from Sublime Text
  {
    "context": "Editor",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-j": "editor::JoinLines",
      "ctrl-alt-backspace": "editor::DeleteToPreviousSubwordStart",
@@ -494,6 +521,7 @@
  // Bindings from Atom
  {
    "context": "Pane",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-k up": "pane::SplitUp",
      "cmd-k down": "pane::SplitDown",
@@ -504,12 +532,14 @@
  // 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",
      "tab": "editor::ComposeCompletion"
@@ -517,18 +547,21 @@
  },
  {
    "context": "Editor && inline_completion && !showing_completions",
+    "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",
@@ -540,6 +573,7 @@
  },
  // Custom bindings
  {
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-alt-cmd-f": "workspace::FollowNextCollaborator",
      // TODO: Move this to a dock open action
@@ -550,6 +584,7 @@
  },
  {
    "context": "Editor && mode == full",
+    "use_key_equivalents": true,
    "bindings": {
      "alt-enter": "editor::OpenExcerpts",
      "shift-enter": "editor::ExpandExcerpts",
@@ -561,6 +596,7 @@
  },
  {
    "context": "ProposedChangesEditor",
+    "use_key_equivalents": true,
    "bindings": {
      "cmd-shift-y": "editor::ApplyDiffHunk",
      "cmd-shift-a": "editor::ApplyAllDiffHunks"
@@ -568,6 +604,7 @@
  },
  {
    "context": "PromptEditor",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-[": "assistant::CyclePreviousInlineAssist",
      "ctrl-]": "assistant::CycleNextInlineAssist"
@@ -575,12 +612,14 @@
  },
  {
    "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",
@@ -597,6 +636,7 @@
  },
  {
    "context": "ProjectPanel",
+    "use_key_equivalents": true,
    "bindings": {
      "left": "project_panel::CollapseSelectedEntry",
      "right": "project_panel::ExpandSelectedEntry",
@@ -626,12 +666,14 @@
  },
  {
    "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"
@@ -639,18 +681,21 @@
  },
  {
    "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 }],
@@ -659,18 +704,21 @@
  },
  {
    "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",
@@ -681,6 +729,7 @@
  },
  {
    "context": "FileFinder && menu_open",
+    "use_key_equivalents": true,
    "bindings": {
      "j": "pane::SplitDown",
      "k": "pane::SplitUp",
@@ -690,6 +739,7 @@
  },
  {
    "context": "TabSwitcher",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-up": "menu::SelectPrev",
      "ctrl-down": "menu::SelectNext",
@@ -699,6 +749,7 @@
  },
  {
    "context": "Terminal",
+    "use_key_equivalents": true,
    "bindings": {
      "ctrl-cmd-space": "terminal::ShowCharacterPalette",
      "cmd-c": "terminal::Copy",
@@ -738,5 +789,24 @@
      "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/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 } }],
@@ -33,6 +32,18 @@
      "(": "vim::SentenceBackward",
      ")": "vim::SentenceForward",
      "|": "vim::GoToColumn",
+      "] ]": "vim::NextSectionStart",
+      "] [": "vim::NextSectionEnd",
+      "[ [": "vim::PreviousSectionStart",
+      "[ ]": "vim::PreviousSectionEnd",
+      "] m": "vim::NextMethodStart",
+      "] M": "vim::NextMethodEnd",
+      "[ m": "vim::PreviousMethodStart",
+      "[ M": "vim::PreviousMethodEnd",
+      "[ *": "vim::PreviousComment",
+      "[ /": "vim::PreviousComment",
+      "] *": "vim::NextComment",
+      "] /": "vim::NextComment",
      // Word motions
      "w": "vim::NextWordStart",
      "e": "vim::NextWordEnd",
@@ -55,10 +66,10 @@
      "n": "vim::MoveToNextMatch",
      "shift-n": "vim::MoveToPrevMatch",
      "%": "vim::Matching",
-      "] }": ["vim::UnmatchedForward", { "char": "}" } ],
-      "[ {": ["vim::UnmatchedBackward", { "char": "{" } ],
-      "] )": ["vim::UnmatchedForward", { "char": ")" } ],
-      "[ (": ["vim::UnmatchedBackward", { "char": "(" } ],
+      "] }": ["vim::UnmatchedForward", { "char": "}" }],
+      "[ {": ["vim::UnmatchedBackward", { "char": "{" }],
+      "] )": ["vim::UnmatchedForward", { "char": ")" }],
+      "[ (": ["vim::UnmatchedBackward", { "char": "(" }],
      "f": ["vim::PushOperator", { "FindForward": { "before": false } }],
      "t": ["vim::PushOperator", { "FindForward": { "before": true } }],
      "shift-f": ["vim::PushOperator", { "FindBackward": { "after": false } }],
@@ -176,7 +187,6 @@
  },
  {
    "context": "vim_mode == normal",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "editor::Cancel",
      "ctrl-[": "editor::Cancel",
@@ -209,6 +219,7 @@
      "shift-s": "vim::SubstituteLine",
      ">": ["vim::PushOperator", "Indent"],
      "<": ["vim::PushOperator", "Outdent"],
+      "=": ["vim::PushOperator", "AutoIndent"],
      "g u": ["vim::PushOperator", "Lowercase"],
      "g shift-u": ["vim::PushOperator", "Uppercase"],
      "g ~": ["vim::PushOperator", "OppositeCase"],
@@ -230,7 +241,6 @@
  },
  {
    "context": "VimControl && VimCount",
-    "use_layout_keys": true,
    "bindings": {
      "0": ["vim::Number", 0],
      ":": "vim::CountCommand"
@@ -238,7 +248,6 @@
  },
  {
    "context": "vim_mode == visual",
-    "use_layout_keys": true,
    "bindings": {
      ":": "vim::VisualCommand",
      "u": "vim::ConvertToLowerCase",
@@ -275,6 +284,7 @@
      "ctrl-[": ["vim::SwitchMode", "Normal"],
      ">": "vim::Indent",
      "<": "vim::Outdent",
+      "=": "vim::AutoIndent",
      "i": ["vim::PushOperator", { "Object": { "around": false } }],
      "a": ["vim::PushOperator", { "Object": { "around": true } }],
      "g c": "vim::ToggleComments",
@@ -287,7 +297,6 @@
  },
  {
    "context": "vim_mode == insert",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "vim::NormalBefore",
      "ctrl-c": "vim::NormalBefore",
@@ -312,9 +321,25 @@
      "ctrl-o": "vim::TemporaryNormal"
    }
  },
+  {
+    "context": "vim_mode == helix_normal",
+    "bindings": {
+      "i": "vim::InsertBefore",
+      "a": "vim::InsertAfter",
+      "d": "vim::HelixDelete",
+      "w": "vim::NextWordStart",
+      "e": "vim::NextWordEnd",
+      "b": "vim::PreviousWordStart",
+
+      "h": "vim::Left",
+      "j": "vim::Down",
+      "k": "vim::Up",
+      "l": "vim::Right"
+    }
+  },
+
  {
    "context": "vim_mode == insert && !(showing_code_actions || showing_completions)",
-    "use_layout_keys": true,
    "bindings": {
      "ctrl-p": "editor::ShowCompletions",
      "ctrl-n": "editor::ShowCompletions"
@@ -322,7 +347,6 @@
  },
  {
    "context": "vim_mode == replace",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "vim::NormalBefore",
      "ctrl-c": "vim::NormalBefore",
@@ -340,7 +364,6 @@
  },
  {
    "context": "vim_mode == waiting",
-    "use_layout_keys": true,
    "bindings": {
      "tab": "vim::Tab",
      "enter": "vim::Enter",
@@ -354,16 +377,15 @@
  },
  {
    "context": "vim_mode == operator",
-    "use_layout_keys": true,
    "bindings": {
      "escape": "vim::ClearOperators",
      "ctrl-c": "vim::ClearOperators",
-      "ctrl-[": "vim::ClearOperators"
+      "ctrl-[": "vim::ClearOperators",
+      "g c": "vim::Comment"
    }
  },
  {
    "context": "vim_operator == a || vim_operator == i || vim_operator == cs",
-    "use_layout_keys": true,
    "bindings": {
      "w": "vim::Word",
      "shift-w": ["vim::Word", { "ignorePunctuation": true }],
@@ -387,12 +409,13 @@
      ">": "vim::AngleBrackets",
      "a": "vim::Argument",
      "i": "vim::IndentObj",
-      "shift-i": ["vim::IndentObj", { "includeBelow": true }]
+      "shift-i": ["vim::IndentObj", { "includeBelow": true }],
+      "f": "vim::Method",
+      "c": "vim::Class"
    }
  },
  {
    "context": "vim_operator == c",
-    "use_layout_keys": true,
    "bindings": {
      "c": "vim::CurrentLine",
      "d": "editor::Rename", // zed specific
@@ -401,7 +424,6 @@
  },
  {
    "context": "vim_operator == d",
-    "use_layout_keys": true,
    "bindings": {
      "d": "vim::CurrentLine",
      "s": ["vim::PushOperator", "DeleteSurrounds"],
@@ -411,7 +433,6 @@
  },
  {
    "context": "vim_operator == gu",
-    "use_layout_keys": true,
    "bindings": {
      "g u": "vim::CurrentLine",
      "u": "vim::CurrentLine"
@@ -419,7 +440,6 @@
  },
  {
    "context": "vim_operator == gU",
-    "use_layout_keys": true,
    "bindings": {
      "g shift-u": "vim::CurrentLine",
      "shift-u": "vim::CurrentLine"
@@ -427,7 +447,6 @@
  },
  {
    "context": "vim_operator == g~",
-    "use_layout_keys": true,
    "bindings": {
      "g ~": "vim::CurrentLine",
      "~": "vim::CurrentLine"
@@ -435,7 +454,6 @@
  },
  {
    "context": "vim_operator == gq",
-    "use_layout_keys": true,
    "bindings": {
      "g q": "vim::CurrentLine",
      "q": "vim::CurrentLine",
@@ -445,7 +463,6 @@
  },
  {
    "context": "vim_operator == y",
-    "use_layout_keys": true,
    "bindings": {
      "y": "vim::CurrentLine",
      "s": ["vim::PushOperator", { "AddSurrounds": {} }]
@@ -453,35 +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",
+    "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"]],
@@ -525,7 +543,6 @@
  },
  {
    "context": "BufferSearchBar && !in_replace",
-    "use_layout_keys": true,
    "bindings": {
      "enter": "vim::SearchSubmit",
      "escape": "buffer_search::Dismiss"
@@ -533,7 +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,
@@ -590,7 +606,6 @@
  },
  {
    "context": "EmptyPane || SharedScreen || MarkdownPreview || KeyContextView || Welcome",
-    "use_layout_keys": true,
    "bindings": {
      ":": "command_palette::Toggle",
      "g /": "pane::DeploySearch"
@@ -599,7 +614,6 @@
  {
    // netrw compatibility
    "context": "ProjectPanel && not_editing",
-    "use_layout_keys": true,
    "bindings": {
      ":": "command_palette::Toggle",
      "%": "project_panel::NewFile",
@@ -619,6 +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",
@@ -627,7 +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
@@ -150,9 +150,6 @@
  // 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.
@@ -564,10 +561,23 @@
    // 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 +684,7 @@
    "**/.git",
    "**/.svn",
    "**/.hg",
+    "**/.jj",
    "**/CVS",
    "**/.DS_Store",
    "**/Thumbs.db",
@@ -1129,6 +1140,7 @@
    "use_system_clipboard": "always",
    "use_multiline_find": false,
    "use_smartcase_find": false,
+    "highlight_on_yank_duration": 200,
    "custom_digraphs": {}
  },
  // The server to connect to. If the environment variable
@@ -1186,6 +1198,8 @@
  //   "W": "workspace::Save"
  // }
  "command_aliases": {},
+  // Whether to show user picture in titlebar.
+  "show_user_picture": true,
  // ssh_connections is an array of ssh connections.
  // You can configure these from `project: Open Remote` in the command palette.
  // Zed's ssh support will pull configuration from your ~/.ssh too.
--- a/assets/themes/andromeda/andromeda.json
+++ b/assets/themes/andromeda/andromeda.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Andromeda",
  "author": "Zed Industries",
  "themes": [
@@ -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
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Atelier",
  "author": "Zed Industries",
  "themes": [
@@ -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
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Ayu",
  "author": "Zed Industries",
  "themes": [
@@ -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
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Gruvbox",
  "author": "Zed Industries",
  "themes": [
@@ -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/one/one.json
+++ b/assets/themes/one/one.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "One",
  "author": "Zed Industries",
  "themes": [
--- a/assets/themes/rose_pine/rose_pine.json
+++ b/assets/themes/rose_pine/rose_pine.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Rosé Pine",
  "author": "Zed Industries",
  "themes": [
@@ -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
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Sandcastle",
  "author": "Zed Industries",
  "themes": [
@@ -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
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Solarized",
  "author": "Zed Industries",
  "themes": [
@@ -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
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://zed.dev/schema/themes/v0.1.0.json",
+  "$schema": "https://zed.dev/schema/themes/v0.2.0.json",
  "name": "Summercamp",
  "author": "Zed Industries",
  "themes": [
@@ -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/slash_command/context_server_command.rs
+++ b/crates/assistant/src/slash_command/context_server_command.rs
@@ -164,7 +164,7 @@ impl SlashCommand for ContextServerSlashCommand {
                    .messages
                    .into_iter()
                    .filter_map(|msg| match msg.content {
-                        context_server::types::MessageContent::Text { text } => Some(text),
+                        context_server::types::MessageContent::Text { text, .. } => Some(text),
                        _ => None,
                    })
                    .collect::<Vec<String>>()
--- a/crates/assistant/src/slash_command_picker.rs
+++ b/crates/assistant/src/slash_command_picker.rs
@@ -2,7 +2,7 @@ use std::sync::Arc;

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

 use crate::assistant_panel::ContextEditor;
 use crate::SlashCommandWorkingSet;
@@ -177,11 +177,17 @@ impl PickerDelegate for SlashCommandDelegate {
                    .inset(true)
                    .spacing(ListItemSpacing::Dense)
                    .selected(selected)
+                    .tooltip({
+                        let description = info.description.clone();
+                        move |cx| cx.new_view(|_| Tooltip::new(description.clone())).into()
+                    })
                    .child(
                        v_flex()
                            .group(format!("command-entry-label-{ix}"))
                            .w_full()
+                            .py_0p5()
                            .min_w(px(250.))
+                            .max_w(px(400.))
                            .child(
                                h_flex()
                                    .gap_1p5()
@@ -192,7 +198,7 @@ impl PickerDelegate for SlashCommandDelegate {
                                        {
                                            label.push_str(&args);
                                        }
-                                        Label::new(label).size(LabelSize::Small)
+                                        Label::new(label).single_line().size(LabelSize::Small)
                                    }))
                                    .children(info.args.clone().filter(|_| !selected).map(
                                        |args| {
@@ -200,6 +206,7 @@ impl PickerDelegate for SlashCommandDelegate {
                                                .font_buffer(cx)
                                                .child(
                                                    Label::new(args)
+                                                        .single_line()
                                                        .size(LabelSize::Small)
                                                        .color(Color::Muted),
                                                )
@@ -210,9 +217,11 @@ impl PickerDelegate for SlashCommandDelegate {
                                    )),
                            )
                            .child(
-                                Label::new(info.description.clone())
-                                    .size(LabelSize::Small)
-                                    .color(Color::Muted),
+                                div().overflow_hidden().text_ellipsis().child(
+                                    Label::new(info.description.clone())
+                                        .size(LabelSize::Small)
+                                        .color(Color::Muted),
+                                ),
                            ),
                    ),
            ),
--- a/crates/assistant2/Cargo.toml
+++ b/crates/assistant2/Cargo.toml
@@ -15,6 +15,7 @@ doctest = false
 [dependencies]
 anyhow.workspace = true
 assistant_tool.workspace = true
+chrono.workspace = true
 client.workspace = true
 collections.workspace = true
 command_palette_hooks.workspace = true
@@ -23,17 +24,24 @@ editor.workspace = true
 feature_flags.workspace = true
 futures.workspace = true
 gpui.workspace = true
+language.workspace = true
 language_model.workspace = true
 language_model_selector.workspace = true
 language_models.workspace = true
 log.workspace = true
+markdown.workspace = true
+picker.workspace = true
 project.workspace = true
 proto.workspace = true
-settings.workspace = true
 serde.workspace = true
 serde_json.workspace = true
+settings.workspace = true
 smol.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
--- 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
@@ -1,7 +1,12 @@
+mod active_thread;
 mod assistant_panel;
+mod context;
+mod context_picker;
 mod message_editor;
 mod thread;
+mod thread_history;
 mod thread_store;
+mod ui;

 use command_palette_hooks::CommandPaletteFilter;
 use feature_flags::{Assistant2FeatureFlag, FeatureFlagAppExt};
@@ -11,7 +16,13 @@ pub use crate::assistant_panel::AssistantPanel;

 actions!(
    assistant2,
-    [ToggleFocus, NewThread, ToggleModelSelector, Chat]
+    [
+        ToggleFocus,
+        NewThread,
+        ToggleModelSelector,
+        OpenHistory,
+        Chat
+    ]
 );

 const NAMESPACE: &str = "assistant2";
--- a/crates/assistant2/src/assistant_panel.rs
+++ b/crates/assistant2/src/assistant_panel.rs
@@ -4,20 +4,22 @@ use anyhow::Result;
 use assistant_tool::ToolWorkingSet;
 use client::zed_urls;
 use gpui::{
-    prelude::*, px, Action, AnyElement, AppContext, AsyncWindowContext, EventEmitter, FocusHandle,
-    FocusableView, FontWeight, Model, Pixels, Subscription, Task, View, ViewContext, WeakView,
+    prelude::*, px, svg, Action, AnyElement, AppContext, AsyncWindowContext, EventEmitter,
+    FocusHandle, FocusableView, FontWeight, Model, Pixels, Task, View, ViewContext, WeakView,
    WindowContext,
 };
-use language_model::{LanguageModelRegistry, Role};
-use language_model_selector::LanguageModelSelector;
-use ui::{prelude::*, ButtonLike, Divider, IconButtonShape, Tab, Tooltip};
+use language::LanguageRegistry;
+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::{Message, Thread, ThreadError, ThreadEvent};
+use crate::thread::{ThreadError, ThreadId};
+use crate::thread_history::{PastThread, ThreadHistory};
 use crate::thread_store::ThreadStore;
-use crate::{NewThread, ToggleFocus, ToggleModelSelector};
+use crate::{NewThread, OpenHistory, ToggleFocus};

 pub fn init(cx: &mut AppContext) {
    cx.observe_new_views(
@@ -30,15 +32,21 @@ pub fn init(cx: &mut AppContext) {
    .detach();
 }

+enum ActiveView {
+    Thread,
+    History,
+}
+
 pub struct AssistantPanel {
    workspace: WeakView<Workspace>,
-    #[allow(unused)]
+    language_registry: Arc<LanguageRegistry>,
    thread_store: Model<ThreadStore>,
-    thread: Model<Thread>,
+    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 {
@@ -67,82 +75,92 @@ 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(),
-            thread_store,
-            thread: thread.clone(),
-            message_editor: cx.new_view(|cx| MessageEditor::new(thread, cx)),
+            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,
+                    language_registry,
+                    tools.clone(),
+                    cx,
+                )
+            }),
+            message_editor: cx.new_view(|cx| MessageEditor::new(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._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(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::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<_>>();
+    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;
+        };

-                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.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(thread, cx));
+        self.message_editor.focus_handle(cx).focus(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),
+        }
    }
 }

@@ -201,11 +219,10 @@ 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)
@@ -223,8 +240,8 @@ impl AssistantPanel {
                                    )
                                }
                            })
-                            .on_click(move |_event, _cx| {
-                                println!("New Thread");
+                            .on_click(move |_event, cx| {
+                                cx.dispatch_action(NewThread.boxed_clone());
                            }),
                    )
                    .child(
@@ -232,9 +249,19 @@ impl AssistantPanel {
                            .shape(IconButtonShape::Square)
                            .icon_size(IconSize::Small)
                            .style(ButtonStyle::Subtle)
-                            .tooltip(move |cx| Tooltip::text("Open History", cx))
-                            .on_click(move |_event, _cx| {
-                                println!("Open History");
+                            .tooltip({
+                                let focus_handle = focus_handle.clone();
+                                move |cx| {
+                                    Tooltip::for_action_in(
+                                        "Open History",
+                                        &OpenHistory,
+                                        &focus_handle,
+                                        cx,
+                                    )
+                                }
+                            })
+                            .on_click(move |_event, cx| {
+                                cx.dispatch_action(OpenHistory.boxed_clone());
                            }),
                    )
                    .child(
@@ -250,86 +277,68 @@ 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();
+    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();
+        }

-        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)),
-        )
+        self.thread.clone().into_any()
    }

-    fn render_message(&self, message: Message, cx: &mut ViewContext<Self>) -> impl IntoElement {
-        let (role_icon, role_name) = match message.role {
-            Role::User => (IconName::Person, "You"),
-            Role::Assistant => (IconName::ZedAssistant, "Assistant"),
-            Role::System => (IconName::Settings, "System"),
-        };
+    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));

        v_flex()
-            .border_1()
-            .border_color(cx.theme().colors().border_variant)
-            .rounded_md()
+            .gap_2()
+            .mx_auto()
            .child(
-                h_flex()
-                    .justify_between()
-                    .p_1p5()
-                    .border_b_1()
-                    .border_color(cx.theme().colors().border_variant)
+                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()
-                            .gap_2()
-                            .child(Icon::new(role_icon).size(IconSize::Small))
-                            .child(Label::new(role_name).size(LabelSize::Small)),
-                    ),
-            )
-            .child(v_flex().p_1p5().child(Label::new(message.text.clone())))
+                            .w_full()
+                            .justify_center()
+                            .child(Label::new("Recent Threads:").size(LabelSize::Small)),
+                    )
+                    .child(
+                        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()
@@ -347,7 +356,7 @@ 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(),
@@ -379,14 +388,20 @@ 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();
                        },
                    ))),
@@ -420,7 +435,10 @@ 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();
                            }),
@@ -428,7 +446,10 @@ 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();
                        },
                    ))),
@@ -466,7 +487,10 @@ 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();
                        },
                    ))),
@@ -477,8 +501,6 @@ impl AssistantPanel {

 impl Render for AssistantPanel {
    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
-        let messages = self.thread.read(cx).messages().cloned().collect::<Vec<_>>();
-
        v_flex()
            .key_context("AssistantPanel2")
            .justify_between()
@@ -486,27 +508,23 @@ impl Render for AssistantPanel {
            .on_action(cx.listener(|this, _: &NewThread, cx| {
                this.new_thread(cx);
            }))
+            .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(
-                v_flex()
-                    .id("message-list")
-                    .gap_2()
-                    .size_full()
-                    .p_2()
-                    .overflow_y_scroll()
-                    .bg(cx.theme().colors().panel_background)
-                    .children(
-                        messages
-                            .into_iter()
-                            .map(|message| self.render_message(message, 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/context.rs
+++ b/crates/assistant2/src/context.rs
@@ -0,0 +1,14 @@
+use gpui::SharedString;
+
+/// Some context attached to a message in a thread.
+#[derive(Debug, Clone)]
+pub struct Context {
+    pub name: SharedString,
+    pub kind: ContextKind,
+    pub text: SharedString,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub enum ContextKind {
+    File,
+}
--- a/crates/assistant2/src/context_picker.rs
+++ b/crates/assistant2/src/context_picker.rs
@@ -0,0 +1,197 @@
+use std::sync::Arc;
+
+use gpui::{DismissEvent, SharedString, Task, WeakView};
+use picker::{Picker, PickerDelegate, PickerEditorPosition};
+use ui::{prelude::*, ListItem, ListItemSpacing, PopoverMenu, PopoverTrigger, Tooltip};
+
+use crate::message_editor::MessageEditor;
+
+#[derive(IntoElement)]
+pub(super) struct ContextPicker<T: PopoverTrigger> {
+    message_editor: WeakView<MessageEditor>,
+    trigger: T,
+}
+
+#[derive(Clone)]
+struct ContextPickerEntry {
+    name: SharedString,
+    description: SharedString,
+    icon: IconName,
+}
+
+pub(crate) struct ContextPickerDelegate {
+    all_entries: Vec<ContextPickerEntry>,
+    filtered_entries: Vec<ContextPickerEntry>,
+    message_editor: WeakView<MessageEditor>,
+    selected_ix: usize,
+}
+
+impl<T: PopoverTrigger> ContextPicker<T> {
+    pub(crate) fn new(message_editor: WeakView<MessageEditor>, trigger: T) -> Self {
+        ContextPicker {
+            message_editor,
+            trigger,
+        }
+    }
+}
+
+impl PickerDelegate for ContextPickerDelegate {
+    type ListItem = ListItem;
+
+    fn match_count(&self) -> usize {
+        self.filtered_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.filtered_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<()> {
+        let all_commands = self.all_entries.clone();
+        cx.spawn(|this, mut cx| async move {
+            let filtered_commands = cx
+                .background_executor()
+                .spawn(async move {
+                    if query.is_empty() {
+                        all_commands
+                    } else {
+                        all_commands
+                            .into_iter()
+                            .filter(|model_info| {
+                                model_info
+                                    .name
+                                    .to_lowercase()
+                                    .contains(&query.to_lowercase())
+                            })
+                            .collect()
+                    }
+                })
+                .await;
+
+            this.update(&mut cx, |this, cx| {
+                this.delegate.filtered_entries = filtered_commands;
+                this.delegate.set_selected_index(0, cx);
+                cx.notify();
+            })
+            .ok();
+        })
+    }
+
+    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+        if let Some(entry) = self.filtered_entries.get(self.selected_ix) {
+            self.message_editor
+                .update(cx, |_message_editor, _cx| {
+                    println!("Insert context from {}", entry.name);
+                })
+                .ok();
+            cx.emit(DismissEvent);
+        }
+    }
+
+    fn dismissed(&mut self, _cx: &mut ViewContext<Picker<Self>>) {}
+
+    fn editor_position(&self) -> PickerEditorPosition {
+        PickerEditorPosition::End
+    }
+
+    fn render_match(
+        &self,
+        ix: usize,
+        selected: bool,
+        _cx: &mut ViewContext<Picker<Self>>,
+    ) -> Option<Self::ListItem> {
+        let entry = self.filtered_entries.get(ix)?;
+
+        Some(
+            ListItem::new(ix)
+                .inset(true)
+                .spacing(ListItemSpacing::Dense)
+                .selected(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),
+                            ),
+                        ),
+                ),
+        )
+    }
+}
+
+impl<T: PopoverTrigger> RenderOnce for ContextPicker<T> {
+    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
+        let 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: "web".into(),
+                description: "Fetch content from URL".into(),
+                icon: IconName::Globe,
+            },
+        ];
+
+        let delegate = ContextPickerDelegate {
+            all_entries: entries.clone(),
+            message_editor: self.message_editor.clone(),
+            filtered_entries: entries,
+            selected_ix: 0,
+        };
+
+        let picker =
+            cx.new_view(|cx| Picker::uniform_list(delegate, cx).max_height(Some(rems(20.).into())));
+
+        let handle = self
+            .message_editor
+            .update(cx, |this, _| this.context_picker_handle.clone())
+            .ok();
+        PopoverMenu::new("context-picker")
+            .menu(move |_cx| Some(picker.clone()))
+            .trigger(self.trigger)
+            .attach(gpui::AnchorCorner::TopLeft)
+            .anchor(gpui::AnchorCorner::BottomLeft)
+            .offset(gpui::Point {
+                x: px(0.0),
+                y: px(-16.0),
+            })
+            .when_some(handle, |this, handle| this.with_handle(handle))
+    }
+}
--- a/crates/assistant2/src/message_editor.rs
+++ b/crates/assistant2/src/message_editor.rs
@@ -1,29 +1,47 @@
 use editor::{Editor, EditorElement, EditorStyle};
 use gpui::{AppContext, FocusableView, Model, TextStyle, View};
 use language_model::{LanguageModelRegistry, LanguageModelRequestTool};
+use language_model_selector::LanguageModelSelector;
+use picker::Picker;
 use settings::Settings;
 use theme::ThemeSettings;
-use ui::{prelude::*, ButtonLike, CheckboxWithLabel, ElevationIndex, KeyBinding};
+use ui::{
+    prelude::*, ButtonLike, CheckboxWithLabel, ElevationIndex, IconButtonShape, KeyBinding,
+    PopoverMenuHandle, Tooltip,
+};

+use crate::context::{Context, ContextKind};
+use crate::context_picker::{ContextPicker, ContextPickerDelegate};
 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>,
+    pub(crate) context_picker_handle: PopoverMenuHandle<Picker<ContextPickerDelegate>>,
    use_tools: bool,
 }

 impl MessageEditor {
    pub fn new(thread: Model<Thread>, cx: &mut ViewContext<Self>) -> Self {
+        let mocked_context = vec![Context {
+            name: "shape.rs".into(),
+            kind: ContextKind::File,
+            text: "```rs\npub enum Shape {\n    Circle,\n    Square,\n    Triangle,\n}".into(),
+        }];
+
        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: mocked_context,
+            context_picker_handle: PopoverMenuHandle::default(),
            use_tools: false,
        }
    }
@@ -54,9 +72,10 @@ 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);
+            thread.insert_user_message(user_message, context, cx);
            let mut request = thread.to_completion_request(request_kind, cx);

            if self.use_tools {
@@ -77,6 +96,57 @@ 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();
+
+        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)),
+        )
+    }
 }

 impl FocusableView for MessageEditor {
@@ -98,6 +168,34 @@ impl Render for MessageEditor {
            .gap_2()
            .p_2()
            .bg(cx.theme().colors().editor_background)
+            .child(
+                h_flex()
+                    .flex_wrap()
+                    .gap_2()
+                    .child(ContextPicker::new(
+                        cx.view().downgrade(),
+                        IconButton::new("add-context", IconName::Plus)
+                            .shape(IconButtonShape::Square)
+                            .icon_size(IconSize::Small),
+                    ))
+                    .children(
+                        self.context
+                            .iter()
+                            .map(|context| ContextPill::new(context.clone())),
+                    )
+                    .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 +221,26 @@ 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 {
+                                Selection::Selected => true,
+                                Selection::Unselected | Selection::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/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,
@@ -63,6 +92,35 @@ 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()
    }
@@ -71,16 +129,39 @@ impl Thread {
        &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>) {
+    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: self.next_message_id.post_inc(),
-            role: Role::User,
+            id,
+            role,
            text: text.into(),
        });
+        self.touch_updated_at();
+        cx.emit(ThreadEvent::MessageAdded(id));
+        id
    }

    pub fn to_completion_request(
@@ -110,6 +191,29 @@ impl Thread {
                }
            }

+            if let Some(context) = self.context_for_message(message.id) {
+                let mut file_context = String::new();
+
+                for context in context.iter() {
+                    match context.kind {
+                        ContextKind::File => {
+                            file_context.push_str(&context.text);
+                            file_context.push_str("\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);
+                }
+
+                request_message
+                    .content
+                    .push(MessageContent::Text(context_text))
+            }
+
            if !message.text.is_empty() {
                request_message
                    .content
@@ -150,11 +254,7 @@ impl Thread {
                    thread.update(&mut cx, |thread, cx| {
                        match event {
                            LanguageModelCompletionEvent::StartMessage { .. } => {
-                                thread.messages.push(Message {
-                                    id: thread.next_message_id.post_inc(),
-                                    role: Role::Assistant,
-                                    text: String::new(),
-                                });
+                                thread.insert_message(Role::Assistant, String::new(), cx);
                            }
                            LanguageModelCompletionEvent::Stop(reason) => {
                                stop_reason = reason;
@@ -163,6 +263,10 @@ impl Thread {
                                if let Some(last_message) = thread.messages.last_mut() {
                                    if last_message.role == Role::Assistant {
                                        last_message.text.push_str(&chunk);
+                                        cx.emit(ThreadEvent::StreamedAssistantText(
+                                            last_message.id,
+                                            chunk,
+                                        ));
                                    }
                                }
                            }
@@ -192,6 +296,7 @@ impl Thread {
                            }
                        }

+                        thread.touch_updated_at();
                        cx.emit(ThreadEvent::StreamedCompletion);
                        cx.notify();
                    })?;
@@ -199,10 +304,14 @@ 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)
@@ -245,6 +354,59 @@ 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,
@@ -316,6 +478,9 @@ pub enum ThreadError {
 pub enum ThreadEvent {
    ShowError(ThreadError),
    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 +1,25 @@
+use ui::prelude::*;
+
+use crate::context::Context;
+
+#[derive(IntoElement)]
+pub struct ContextPill {
+    context: Context,
+}
+
+impl ContextPill {
+    pub fn new(context: Context) -> Self {
+        Self { context }
+    }
+}
+
+impl RenderOnce for ContextPill {
+    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
+        div()
+            .px_1()
+            .border_1()
+            .border_color(cx.theme().colors().border)
+            .rounded_md()
+            .child(Label::new(self.context.name.clone()).size(LabelSize::Small))
+    }
+}
--- a/crates/call/Cargo.toml
+++ b/crates/call/Cargo.toml
@@ -17,7 +17,8 @@ test-support = [
    "client/test-support",
    "collections/test-support",
    "gpui/test-support",
-    "live_kit_client/test-support",
+    "livekit_client/test-support",
+    "livekit_client_macos/test-support",
    "project/test-support",
    "util/test-support"
 ]
@@ -27,11 +28,11 @@ anyhow.workspace = true
 audio.workspace = true
 client.workspace = true
 collections.workspace = true
+feature_flags.workspace = true
 fs.workspace = true
 futures.workspace = true
 gpui.workspace = true
 language.workspace = true
-live_kit_client.workspace = true
 log.workspace = true
 postage.workspace = true
 project.workspace = true
@@ -41,13 +42,24 @@ serde_derive.workspace = true
 settings.workspace = true
 util.workspace = true

+[target.'cfg(target_os = "macos")'.dependencies]
+livekit_client_macos = { workspace = true }
+
+[target.'cfg(not(target_os = "macos"))'.dependencies]
+livekit_client = { workspace = true }
+
 [dev-dependencies]
 client = { workspace = true, features = ["test-support"] }
 collections = { workspace = true, features = ["test-support"] }
 fs = { workspace = true, features = ["test-support"] }
 gpui = { workspace = true, features = ["test-support"] }
 language = { workspace = true, features = ["test-support"] }
-live_kit_client = { workspace = true, features = ["test-support"] }
 project = { workspace = true, features = ["test-support"] }
 util = { workspace = true, features = ["test-support"] }
 http_client = { workspace = true, features = ["test-support"] }
+
+[target.'cfg(target_os = "macos")'.dev-dependencies]
+livekit_client_macos = { workspace = true, features = ["test-support"] }
+
+[target.'cfg(not(target_os = "macos"))'.dev-dependencies]
+livekit_client = { workspace = true, features = ["test-support"] }
--- a/crates/call/src/call.rs
+++ b/crates/call/src/call.rs
@@ -1,546 +1,13 @@
 pub mod call_settings;
-pub mod participant;
-pub mod room;

-use anyhow::{anyhow, Result};
-use audio::Audio;
-use call_settings::CallSettings;
-use client::{proto, ChannelId, Client, TypedEnvelope, User, UserStore, ZED_ALWAYS_ACTIVE};
-use collections::HashSet;
-use futures::{channel::oneshot, future::Shared, Future, FutureExt};
-use gpui::{
-    AppContext, AsyncAppContext, Context, EventEmitter, Global, Model, ModelContext, Subscription,
-    Task, WeakModel,
-};
-use postage::watch;
-use project::Project;
-use room::Event;
-use settings::Settings;
-use std::sync::Arc;
+#[cfg(target_os = "macos")]
+mod macos;

-pub use participant::ParticipantLocation;
-pub use room::Room;
+#[cfg(target_os = "macos")]
+pub use macos::*;

-struct GlobalActiveCall(Model<ActiveCall>);
+#[cfg(not(target_os = "macos"))]
+mod cross_platform;

-impl Global for GlobalActiveCall {}
-
-pub fn init(client: Arc<Client>, user_store: Model<UserStore>, cx: &mut AppContext) {
-    CallSettings::register(cx);
-
-    let active_call = cx.new_model(|cx| ActiveCall::new(client, user_store, cx));
-    cx.set_global(GlobalActiveCall(active_call));
-}
-
-pub struct OneAtATime {
-    cancel: Option<oneshot::Sender<()>>,
-}
-
-impl OneAtATime {
-    /// spawn a task in the given context.
-    /// if another task is spawned before that resolves, or if the OneAtATime itself is dropped, the first task will be cancelled and return Ok(None)
-    /// otherwise you'll see the result of the task.
-    fn spawn<F, Fut, R>(&mut self, cx: &mut AppContext, f: F) -> Task<Result<Option<R>>>
-    where
-        F: 'static + FnOnce(AsyncAppContext) -> Fut,
-        Fut: Future<Output = Result<R>>,
-        R: 'static,
-    {
-        let (tx, rx) = oneshot::channel();
-        self.cancel.replace(tx);
-        cx.spawn(|cx| async move {
-            futures::select_biased! {
-                _ = rx.fuse() => Ok(None),
-                result = f(cx).fuse() => result.map(Some),
-            }
-        })
-    }
-
-    fn running(&self) -> bool {
-        self.cancel
-            .as_ref()
-            .is_some_and(|cancel| !cancel.is_canceled())
-    }
-}
-
-#[derive(Clone)]
-pub struct IncomingCall {
-    pub room_id: u64,
-    pub calling_user: Arc<User>,
-    pub participants: Vec<Arc<User>>,
-    pub initial_project: Option<proto::ParticipantProject>,
-}
-
-/// Singleton global maintaining the user's participation in a room across workspaces.
-pub struct ActiveCall {
-    room: Option<(Model<Room>, Vec<Subscription>)>,
-    pending_room_creation: Option<Shared<Task<Result<Model<Room>, Arc<anyhow::Error>>>>>,
-    location: Option<WeakModel<Project>>,
-    _join_debouncer: OneAtATime,
-    pending_invites: HashSet<u64>,
-    incoming_call: (
-        watch::Sender<Option<IncomingCall>>,
-        watch::Receiver<Option<IncomingCall>>,
-    ),
-    client: Arc<Client>,
-    user_store: Model<UserStore>,
-    _subscriptions: Vec<client::Subscription>,
-}
-
-impl EventEmitter<Event> for ActiveCall {}
-
-impl ActiveCall {
-    fn new(client: Arc<Client>, user_store: Model<UserStore>, cx: &mut ModelContext<Self>) -> Self {
-        Self {
-            room: None,
-            pending_room_creation: None,
-            location: None,
-            pending_invites: Default::default(),
-            incoming_call: watch::channel(),
-            _join_debouncer: OneAtATime { cancel: None },
-            _subscriptions: vec![
-                client.add_request_handler(cx.weak_model(), Self::handle_incoming_call),
-                client.add_message_handler(cx.weak_model(), Self::handle_call_canceled),
-            ],
-            client,
-            user_store,
-        }
-    }
-
-    pub fn channel_id(&self, cx: &AppContext) -> Option<ChannelId> {
-        self.room()?.read(cx).channel_id()
-    }
-
-    async fn handle_incoming_call(
-        this: Model<Self>,
-        envelope: TypedEnvelope<proto::IncomingCall>,
-        mut cx: AsyncAppContext,
-    ) -> Result<proto::Ack> {
-        let user_store = this.update(&mut cx, |this, _| this.user_store.clone())?;
-        let call = IncomingCall {
-            room_id: envelope.payload.room_id,
-            participants: user_store
-                .update(&mut cx, |user_store, cx| {
-                    user_store.get_users(envelope.payload.participant_user_ids, cx)
-                })?
-                .await?,
-            calling_user: user_store
-                .update(&mut cx, |user_store, cx| {
-                    user_store.get_user(envelope.payload.calling_user_id, cx)
-                })?
-                .await?,
-            initial_project: envelope.payload.initial_project,
-        };
-        this.update(&mut cx, |this, _| {
-            *this.incoming_call.0.borrow_mut() = Some(call);
-        })?;
-
-        Ok(proto::Ack {})
-    }
-
-    async fn handle_call_canceled(
-        this: Model<Self>,
-        envelope: TypedEnvelope<proto::CallCanceled>,
-        mut cx: AsyncAppContext,
-    ) -> Result<()> {
-        this.update(&mut cx, |this, _| {
-            let mut incoming_call = this.incoming_call.0.borrow_mut();
-            if incoming_call
-                .as_ref()
-                .map_or(false, |call| call.room_id == envelope.payload.room_id)
-            {
-                incoming_call.take();
-            }
-        })?;
-        Ok(())
-    }
-
-    pub fn global(cx: &AppContext) -> Model<Self> {
-        cx.global::<GlobalActiveCall>().0.clone()
-    }
-
-    pub fn try_global(cx: &AppContext) -> Option<Model<Self>> {
-        cx.try_global::<GlobalActiveCall>()
-            .map(|call| call.0.clone())
-    }
-
-    pub fn invite(
-        &mut self,
-        called_user_id: u64,
-        initial_project: Option<Model<Project>>,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<()>> {
-        if !self.pending_invites.insert(called_user_id) {
-            return Task::ready(Err(anyhow!("user was already invited")));
-        }
-        cx.notify();
-
-        if self._join_debouncer.running() {
-            return Task::ready(Ok(()));
-        }
-
-        let room = if let Some(room) = self.room().cloned() {
-            Some(Task::ready(Ok(room)).shared())
-        } else {
-            self.pending_room_creation.clone()
-        };
-
-        let invite = if let Some(room) = room {
-            cx.spawn(move |_, mut cx| async move {
-                let room = room.await.map_err(|err| anyhow!("{:?}", err))?;
-
-                let initial_project_id = if let Some(initial_project) = initial_project {
-                    Some(
-                        room.update(&mut cx, |room, cx| room.share_project(initial_project, cx))?
-                            .await?,
-                    )
-                } else {
-                    None
-                };
-
-                room.update(&mut cx, move |room, cx| {
-                    room.call(called_user_id, initial_project_id, cx)
-                })?
-                .await?;
-
-                anyhow::Ok(())
-            })
-        } else {
-            let client = self.client.clone();
-            let user_store = self.user_store.clone();
-            let room = cx
-                .spawn(move |this, mut cx| async move {
-                    let create_room = async {
-                        let room = cx
-                            .update(|cx| {
-                                Room::create(
-                                    called_user_id,
-                                    initial_project,
-                                    client,
-                                    user_store,
-                                    cx,
-                                )
-                            })?
-                            .await?;
-
-                        this.update(&mut cx, |this, cx| this.set_room(Some(room.clone()), cx))?
-                            .await?;
-
-                        anyhow::Ok(room)
-                    };
-
-                    let room = create_room.await;
-                    this.update(&mut cx, |this, _| this.pending_room_creation = None)?;
-                    room.map_err(Arc::new)
-                })
-                .shared();
-            self.pending_room_creation = Some(room.clone());
-            cx.background_executor().spawn(async move {
-                room.await.map_err(|err| anyhow!("{:?}", err))?;
-                anyhow::Ok(())
-            })
-        };
-
-        cx.spawn(move |this, mut cx| async move {
-            let result = invite.await;
-            if result.is_ok() {
-                this.update(&mut cx, |this, cx| this.report_call_event("invite", cx))?;
-            } else {
-                //TODO: report collaboration error
-                log::error!("invite failed: {:?}", result);
-            }
-
-            this.update(&mut cx, |this, cx| {
-                this.pending_invites.remove(&called_user_id);
-                cx.notify();
-            })?;
-            result
-        })
-    }
-
-    pub fn cancel_invite(
-        &mut self,
-        called_user_id: u64,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<()>> {
-        let room_id = if let Some(room) = self.room() {
-            room.read(cx).id()
-        } else {
-            return Task::ready(Err(anyhow!("no active call")));
-        };
-
-        let client = self.client.clone();
-        cx.background_executor().spawn(async move {
-            client
-                .request(proto::CancelCall {
-                    room_id,
-                    called_user_id,
-                })
-                .await?;
-            anyhow::Ok(())
-        })
-    }
-
-    pub fn incoming(&self) -> watch::Receiver<Option<IncomingCall>> {
-        self.incoming_call.1.clone()
-    }
-
-    pub fn accept_incoming(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
-        if self.room.is_some() {
-            return Task::ready(Err(anyhow!("cannot join while on another call")));
-        }
-
-        let call = if let Some(call) = self.incoming_call.0.borrow_mut().take() {
-            call
-        } else {
-            return Task::ready(Err(anyhow!("no incoming call")));
-        };
-
-        if self.pending_room_creation.is_some() {
-            return Task::ready(Ok(()));
-        }
-
-        let room_id = call.room_id;
-        let client = self.client.clone();
-        let user_store = self.user_store.clone();
-        let join = self
-            ._join_debouncer
-            .spawn(cx, move |cx| Room::join(room_id, client, user_store, cx));
-
-        cx.spawn(|this, mut cx| async move {
-            let room = join.await?;
-            this.update(&mut cx, |this, cx| this.set_room(room.clone(), cx))?
-                .await?;
-            this.update(&mut cx, |this, cx| {
-                this.report_call_event("accept incoming", cx)
-            })?;
-            Ok(())
-        })
-    }
-
-    pub fn decline_incoming(&mut self, _: &mut ModelContext<Self>) -> Result<()> {
-        let call = self
-            .incoming_call
-            .0
-            .borrow_mut()
-            .take()
-            .ok_or_else(|| anyhow!("no incoming call"))?;
-        report_call_event_for_room("decline incoming", call.room_id, None, &self.client);
-        self.client.send(proto::DeclineCall {
-            room_id: call.room_id,
-        })?;
-        Ok(())
-    }
-
-    pub fn join_channel(
-        &mut self,
-        channel_id: ChannelId,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<Option<Model<Room>>>> {
-        if let Some(room) = self.room().cloned() {
-            if room.read(cx).channel_id() == Some(channel_id) {
-                return Task::ready(Ok(Some(room)));
-            } else {
-                room.update(cx, |room, cx| room.clear_state(cx));
-            }
-        }
-
-        if self.pending_room_creation.is_some() {
-            return Task::ready(Ok(None));
-        }
-
-        let client = self.client.clone();
-        let user_store = self.user_store.clone();
-        let join = self._join_debouncer.spawn(cx, move |cx| async move {
-            Room::join_channel(channel_id, client, user_store, cx).await
-        });
-
-        cx.spawn(|this, mut cx| async move {
-            let room = join.await?;
-            this.update(&mut cx, |this, cx| this.set_room(room.clone(), cx))?
-                .await?;
-            this.update(&mut cx, |this, cx| {
-                this.report_call_event("join channel", cx)
-            })?;
-            Ok(room)
-        })
-    }
-
-    pub fn hang_up(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
-        cx.notify();
-        self.report_call_event("hang up", cx);
-
-        Audio::end_call(cx);
-
-        let channel_id = self.channel_id(cx);
-        if let Some((room, _)) = self.room.take() {
-            cx.emit(Event::RoomLeft { channel_id });
-            room.update(cx, |room, cx| room.leave(cx))
-        } else {
-            Task::ready(Ok(()))
-        }
-    }
-
-    pub fn share_project(
-        &mut self,
-        project: Model<Project>,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<u64>> {
-        if let Some((room, _)) = self.room.as_ref() {
-            self.report_call_event("share project", cx);
-            room.update(cx, |room, cx| room.share_project(project, cx))
-        } else {
-            Task::ready(Err(anyhow!("no active call")))
-        }
-    }
-
-    pub fn unshare_project(
-        &mut self,
-        project: Model<Project>,
-        cx: &mut ModelContext<Self>,
-    ) -> Result<()> {
-        if let Some((room, _)) = self.room.as_ref() {
-            self.report_call_event("unshare project", cx);
-            room.update(cx, |room, cx| room.unshare_project(project, cx))
-        } else {
-            Err(anyhow!("no active call"))
-        }
-    }
-
-    pub fn location(&self) -> Option<&WeakModel<Project>> {
-        self.location.as_ref()
-    }
-
-    pub fn set_location(
-        &mut self,
-        project: Option<&Model<Project>>,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<()>> {
-        if project.is_some() || !*ZED_ALWAYS_ACTIVE {
-            self.location = project.map(|project| project.downgrade());
-            if let Some((room, _)) = self.room.as_ref() {
-                return room.update(cx, |room, cx| room.set_location(project, cx));
-            }
-        }
-        Task::ready(Ok(()))
-    }
-
-    fn set_room(
-        &mut self,
-        room: Option<Model<Room>>,
-        cx: &mut ModelContext<Self>,
-    ) -> Task<Result<()>> {
-        if room.as_ref() == self.room.as_ref().map(|room| &room.0) {
-            Task::ready(Ok(()))
-        } else {
-            cx.notify();
-            if let Some(room) = room {
-                if room.read(cx).status().is_offline() {
-                    self.room = None;
-                    Task::ready(Ok(()))
-                } else {
-                    let subscriptions = vec![
-                        cx.observe(&room, |this, room, cx| {
-                            if room.read(cx).status().is_offline() {
-                                this.set_room(None, cx).detach_and_log_err(cx);
-                            }
-
-                            cx.notify();
-                        }),
-                        cx.subscribe(&room, |_, _, event, cx| cx.emit(event.clone())),
-                    ];
-                    self.room = Some((room.clone(), subscriptions));
-                    let location = self
-                        .location
-                        .as_ref()
-                        .and_then(|location| location.upgrade());
-                    let channel_id = room.read(cx).channel_id();
-                    cx.emit(Event::RoomJoined { channel_id });
-                    room.update(cx, |room, cx| room.set_location(location.as_ref(), cx))
-                }
-            } else {
-                self.room = None;
-                Task::ready(Ok(()))
-            }
-        }
-    }
-
-    pub fn room(&self) -> Option<&Model<Room>> {
-        self.room.as_ref().map(|(room, _)| room)
-    }
-
-    pub fn client(&self) -> Arc<Client> {
-        self.client.clone()
-    }
-
-    pub fn pending_invites(&self) -> &HashSet<u64> {
-        &self.pending_invites
-    }
-
-    pub fn report_call_event(&self, operation: &'static str, cx: &mut AppContext) {
-        if let Some(room) = self.room() {
-            let room = room.read(cx);
-            report_call_event_for_room(operation, room.id(), room.channel_id(), &self.client);
-        }
-    }
-}
-
-pub fn report_call_event_for_room(
-    operation: &'static str,
-    room_id: u64,
-    channel_id: Option<ChannelId>,
-    client: &Arc<Client>,
-) {
-    let telemetry = client.telemetry();
-
-    telemetry.report_call_event(operation, Some(room_id), channel_id)
-}
-
-pub fn report_call_event_for_channel(
-    operation: &'static str,
-    channel_id: ChannelId,
-    client: &Arc<Client>,
-    cx: &AppContext,
-) {
-    let room = ActiveCall::global(cx).read(cx).room();
-
-    let telemetry = client.telemetry();
-
-    telemetry.report_call_event(operation, room.map(|r| r.read(cx).id()), Some(channel_id))
-}
-
-#[cfg(test)]
-mod test {
-    use gpui::TestAppContext;
-
-    use crate::OneAtATime;
-
-    #[gpui::test]
-    async fn test_one_at_a_time(cx: &mut TestAppContext) {
-        let mut one_at_a_time = OneAtATime { cancel: None };
-
-        assert_eq!(
-            cx.update(|cx| one_at_a_time.spawn(cx, |_| async { Ok(1) }))
-                .await
-                .unwrap(),
-            Some(1)
-        );
-
-        let (a, b) = cx.update(|cx| {
-            (
-                one_at_a_time.spawn(cx, |_| async {
-                    panic!("");
-                }),
-                one_at_a_time.spawn(cx, |_| async { Ok(3) }),
-            )
-        });
-
-        assert_eq!(a.await.unwrap(), None::<u32>);
-        assert_eq!(b.await.unwrap(), Some(3));
-
-        let promise = cx.update(|cx| one_at_a_time.spawn(cx, |_| async { Ok(4) }));
-        drop(one_at_a_time);
-
-        assert_eq!(promise.await.unwrap(), None);
-    }
-}
+#[cfg(not(target_os = "macos"))]
+pub use cross_platform::*;
--- a/crates/call/src/cross_platform/mod.rs
+++ b/crates/call/src/cross_platform/mod.rs
@@ -0,0 +1,552 @@
+pub mod participant;
+pub mod room;
+
+use crate::call_settings::CallSettings;
+use anyhow::{anyhow, Result};
+use audio::Audio;
+use client::{proto, ChannelId, Client, TypedEnvelope, User, UserStore, ZED_ALWAYS_ACTIVE};
+use collections::HashSet;
+use futures::{channel::oneshot, future::Shared, Future, FutureExt};
+use gpui::{
+    AppContext, AsyncAppContext, Context, EventEmitter, Global, Model, ModelContext, Subscription,
+    Task, WeakModel,
+};
+use postage::watch;
+use project::Project;
+use room::Event;
+use settings::Settings;
+use std::sync::Arc;
+
+pub use livekit_client::{
+    track::RemoteVideoTrack, RemoteVideoTrackView, RemoteVideoTrackViewEvent,
+};
+pub use participant::ParticipantLocation;
+pub use room::Room;
+
+struct GlobalActiveCall(Model<ActiveCall>);
+
+impl Global for GlobalActiveCall {}
+
+pub fn init(client: Arc<Client>, user_store: Model<UserStore>, cx: &mut AppContext) {
+    livekit_client::init(
+        cx.background_executor().dispatcher.clone(),
+        cx.http_client(),
+    );
+    CallSettings::register(cx);
+
+    let active_call = cx.new_model(|cx| ActiveCall::new(client, user_store, cx));
+    cx.set_global(GlobalActiveCall(active_call));
+}
+
+pub struct OneAtATime {
+    cancel: Option<oneshot::Sender<()>>,
+}
+
+impl OneAtATime {
+    /// spawn a task in the given context.
+    /// if another task is spawned before that resolves, or if the OneAtATime itself is dropped, the first task will be cancelled and return Ok(None)
+    /// otherwise you'll see the result of the task.
+    fn spawn<F, Fut, R>(&mut self, cx: &mut AppContext, f: F) -> Task<Result<Option<R>>>
+    where
+        F: 'static + FnOnce(AsyncAppContext) -> Fut,
+        Fut: Future<Output = Result<R>>,
+        R: 'static,
+    {
+        let (tx, rx) = oneshot::channel();
+        self.cancel.replace(tx);
+        cx.spawn(|cx| async move {
+            futures::select_biased! {
+                _ = rx.fuse() => Ok(None),
+                result = f(cx).fuse() => result.map(Some),
+            }
+        })
+    }
+
+    fn running(&self) -> bool {
+        self.cancel
+            .as_ref()
+            .is_some_and(|cancel| !cancel.is_canceled())
+    }
+}
+
+#[derive(Clone)]
+pub struct IncomingCall {
+    pub room_id: u64,
+    pub calling_user: Arc<User>,
+    pub participants: Vec<Arc<User>>,
+    pub initial_project: Option<proto::ParticipantProject>,
+}
+
+/// Singleton global maintaining the user's participation in a room across workspaces.
+pub struct ActiveCall {
+    room: Option<(Model<Room>, Vec<Subscription>)>,
+    pending_room_creation: Option<Shared<Task<Result<Model<Room>, Arc<anyhow::Error>>>>>,
+    location: Option<WeakModel<Project>>,
+    _join_debouncer: OneAtATime,
+    pending_invites: HashSet<u64>,
+    incoming_call: (
+        watch::Sender<Option<IncomingCall>>,
+        watch::Receiver<Option<IncomingCall>>,
+    ),
+    client: Arc<Client>,
+    user_store: Model<UserStore>,
+    _subscriptions: Vec<client::Subscription>,
+}
+
+impl EventEmitter<Event> for ActiveCall {}
+
+impl ActiveCall {
+    fn new(client: Arc<Client>, user_store: Model<UserStore>, cx: &mut ModelContext<Self>) -> Self {
+        Self {
+            room: None,
+            pending_room_creation: None,
+            location: None,
+            pending_invites: Default::default(),
+            incoming_call: watch::channel(),
+            _join_debouncer: OneAtATime { cancel: None },
+            _subscriptions: vec![
+                client.add_request_handler(cx.weak_model(), Self::handle_incoming_call),
+                client.add_message_handler(cx.weak_model(), Self::handle_call_canceled),
+            ],
+            client,
+            user_store,
+        }
+    }
+
+    pub fn channel_id(&self, cx: &AppContext) -> Option<ChannelId> {
+        self.room()?.read(cx).channel_id()
+    }
+
+    async fn handle_incoming_call(
+        this: Model<Self>,
+        envelope: TypedEnvelope<proto::IncomingCall>,
+        mut cx: AsyncAppContext,
+    ) -> Result<proto::Ack> {
+        let user_store = this.update(&mut cx, |this, _| this.user_store.clone())?;
+        let call = IncomingCall {
+            room_id: envelope.payload.room_id,
+            participants: user_store
+                .update(&mut cx, |user_store, cx| {
+                    user_store.get_users(envelope.payload.participant_user_ids, cx)
+                })?
+                .await?,
+            calling_user: user_store
+                .update(&mut cx, |user_store, cx| {
+                    user_store.get_user(envelope.payload.calling_user_id, cx)
+                })?
+                .await?,
+            initial_project: envelope.payload.initial_project,
+        };
+        this.update(&mut cx, |this, _| {
+            *this.incoming_call.0.borrow_mut() = Some(call);
+        })?;
+
+        Ok(proto::Ack {})
+    }
+
+    async fn handle_call_canceled(
+        this: Model<Self>,
+        envelope: TypedEnvelope<proto::CallCanceled>,
+        mut cx: AsyncAppContext,
+    ) -> Result<()> {
+        this.update(&mut cx, |this, _| {
+            let mut incoming_call = this.incoming_call.0.borrow_mut();
+            if incoming_call
+                .as_ref()
+                .map_or(false, |call| call.room_id == envelope.payload.room_id)
+            {
+                incoming_call.take();
+            }
+        })?;
+        Ok(())
+    }
+
+    pub fn global(cx: &AppContext) -> Model<Self> {
+        cx.global::<GlobalActiveCall>().0.clone()
+    }
+
+    pub fn try_global(cx: &AppContext) -> Option<Model<Self>> {
+        cx.try_global::<GlobalActiveCall>()
+            .map(|call| call.0.clone())
+    }
+
+    pub fn invite(
+        &mut self,
+        called_user_id: u64,
+        initial_project: Option<Model<Project>>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        if !self.pending_invites.insert(called_user_id) {
+            return Task::ready(Err(anyhow!("user was already invited")));
+        }
+        cx.notify();
+
+        if self._join_debouncer.running() {
+            return Task::ready(Ok(()));
+        }
+
+        let room = if let Some(room) = self.room().cloned() {
+            Some(Task::ready(Ok(room)).shared())
+        } else {
+            self.pending_room_creation.clone()
+        };
+
+        let invite = if let Some(room) = room {
+            cx.spawn(move |_, mut cx| async move {
+                let room = room.await.map_err(|err| anyhow!("{:?}", err))?;
+
+                let initial_project_id = if let Some(initial_project) = initial_project {
+                    Some(
+                        room.update(&mut cx, |room, cx| room.share_project(initial_project, cx))?
+                            .await?,
+                    )
+                } else {
+                    None
+                };
+
+                room.update(&mut cx, move |room, cx| {
+                    room.call(called_user_id, initial_project_id, cx)
+                })?
+                .await?;
+
+                anyhow::Ok(())
+            })
+        } else {
+            let client = self.client.clone();
+            let user_store = self.user_store.clone();
+            let room = cx
+                .spawn(move |this, mut cx| async move {
+                    let create_room = async {
+                        let room = cx
+                            .update(|cx| {
+                                Room::create(
+                                    called_user_id,
+                                    initial_project,
+                                    client,
+                                    user_store,
+                                    cx,
+                                )
+                            })?
+                            .await?;
+
+                        this.update(&mut cx, |this, cx| this.set_room(Some(room.clone()), cx))?
+                            .await?;
+
+                        anyhow::Ok(room)
+                    };
+
+                    let room = create_room.await;
+                    this.update(&mut cx, |this, _| this.pending_room_creation = None)?;
+                    room.map_err(Arc::new)
+                })
+                .shared();
+            self.pending_room_creation = Some(room.clone());
+            cx.background_executor().spawn(async move {
+                room.await.map_err(|err| anyhow!("{:?}", err))?;
+                anyhow::Ok(())
+            })
+        };
+
+        cx.spawn(move |this, mut cx| async move {
+            let result = invite.await;
+            if result.is_ok() {
+                this.update(&mut cx, |this, cx| this.report_call_event("invite", cx))?;
+            } else {
+                //TODO: report collaboration error
+                log::error!("invite failed: {:?}", result);
+            }
+
+            this.update(&mut cx, |this, cx| {
+                this.pending_invites.remove(&called_user_id);
+                cx.notify();
+            })?;
+            result
+        })
+    }
+
+    pub fn cancel_invite(
+        &mut self,
+        called_user_id: u64,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        let room_id = if let Some(room) = self.room() {
+            room.read(cx).id()
+        } else {
+            return Task::ready(Err(anyhow!("no active call")));
+        };
+
+        let client = self.client.clone();
+        cx.background_executor().spawn(async move {
+            client
+                .request(proto::CancelCall {
+                    room_id,
+                    called_user_id,
+                })
+                .await?;
+            anyhow::Ok(())
+        })
+    }
+
+    pub fn incoming(&self) -> watch::Receiver<Option<IncomingCall>> {
+        self.incoming_call.1.clone()
+    }
+
+    pub fn accept_incoming(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
+        if self.room.is_some() {
+            return Task::ready(Err(anyhow!("cannot join while on another call")));
+        }
+
+        let call = if let Some(call) = self.incoming_call.0.borrow_mut().take() {
+            call
+        } else {
+            return Task::ready(Err(anyhow!("no incoming call")));
+        };
+
+        if self.pending_room_creation.is_some() {
+            return Task::ready(Ok(()));
+        }
+
+        let room_id = call.room_id;
+        let client = self.client.clone();
+        let user_store = self.user_store.clone();
+        let join = self
+            ._join_debouncer
+            .spawn(cx, move |cx| Room::join(room_id, client, user_store, cx));
+
+        cx.spawn(|this, mut cx| async move {
+            let room = join.await?;
+            this.update(&mut cx, |this, cx| this.set_room(room.clone(), cx))?
+                .await?;
+            this.update(&mut cx, |this, cx| {
+                this.report_call_event("accept incoming", cx)
+            })?;
+            Ok(())
+        })
+    }
+
+    pub fn decline_incoming(&mut self, _: &mut ModelContext<Self>) -> Result<()> {
+        let call = self
+            .incoming_call
+            .0
+            .borrow_mut()
+            .take()
+            .ok_or_else(|| anyhow!("no incoming call"))?;
+        report_call_event_for_room("decline incoming", call.room_id, None, &self.client);
+        self.client.send(proto::DeclineCall {
+            room_id: call.room_id,
+        })?;
+        Ok(())
+    }
+
+    pub fn join_channel(
+        &mut self,
+        channel_id: ChannelId,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<Option<Model<Room>>>> {
+        if let Some(room) = self.room().cloned() {
+            if room.read(cx).channel_id() == Some(channel_id) {
+                return Task::ready(Ok(Some(room)));
+            } else {
+                room.update(cx, |room, cx| room.clear_state(cx));
+            }
+        }
+
+        if self.pending_room_creation.is_some() {
+            return Task::ready(Ok(None));
+        }
+
+        let client = self.client.clone();
+        let user_store = self.user_store.clone();
+        let join = self._join_debouncer.spawn(cx, move |cx| async move {
+            Room::join_channel(channel_id, client, user_store, cx).await
+        });
+
+        cx.spawn(|this, mut cx| async move {
+            let room = join.await?;
+            this.update(&mut cx, |this, cx| this.set_room(room.clone(), cx))?
+                .await?;
+            this.update(&mut cx, |this, cx| {
+                this.report_call_event("join channel", cx)
+            })?;
+            Ok(room)
+        })
+    }
+
+    pub fn hang_up(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
+        cx.notify();
+        self.report_call_event("hang up", cx);
+
+        Audio::end_call(cx);
+
+        let channel_id = self.channel_id(cx);
+        if let Some((room, _)) = self.room.take() {
+            cx.emit(Event::RoomLeft { channel_id });
+            room.update(cx, |room, cx| room.leave(cx))
+        } else {
+            Task::ready(Ok(()))
+        }
+    }
+
+    pub fn share_project(
+        &mut self,
+        project: Model<Project>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<u64>> {
+        if let Some((room, _)) = self.room.as_ref() {
+            self.report_call_event("share project", cx);
+            room.update(cx, |room, cx| room.share_project(project, cx))
+        } else {
+            Task::ready(Err(anyhow!("no active call")))
+        }
+    }
+
+    pub fn unshare_project(
+        &mut self,
+        project: Model<Project>,
+        cx: &mut ModelContext<Self>,
+    ) -> Result<()> {
+        if let Some((room, _)) = self.room.as_ref() {
+            self.report_call_event("unshare project", cx);
+            room.update(cx, |room, cx| room.unshare_project(project, cx))
+        } else {
+            Err(anyhow!("no active call"))
+        }
+    }
+
+    pub fn location(&self) -> Option<&WeakModel<Project>> {
+        self.location.as_ref()
+    }
+
+    pub fn set_location(
+        &mut self,
+        project: Option<&Model<Project>>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        if project.is_some() || !*ZED_ALWAYS_ACTIVE {
+            self.location = project.map(|project| project.downgrade());
+            if let Some((room, _)) = self.room.as_ref() {
+                return room.update(cx, |room, cx| room.set_location(project, cx));
+            }
+        }
+        Task::ready(Ok(()))
+    }
+
+    fn set_room(
+        &mut self,
+        room: Option<Model<Room>>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        if room.as_ref() == self.room.as_ref().map(|room| &room.0) {
+            Task::ready(Ok(()))
+        } else {
+            cx.notify();
+            if let Some(room) = room {
+                if room.read(cx).status().is_offline() {
+                    self.room = None;
+                    Task::ready(Ok(()))
+                } else {
+                    let subscriptions = vec![
+                        cx.observe(&room, |this, room, cx| {
+                            if room.read(cx).status().is_offline() {
+                                this.set_room(None, cx).detach_and_log_err(cx);
+                            }
+
+                            cx.notify();
+                        }),
+                        cx.subscribe(&room, |_, _, event, cx| cx.emit(event.clone())),
+                    ];
+                    self.room = Some((room.clone(), subscriptions));
+                    let location = self
+                        .location
+                        .as_ref()
+                        .and_then(|location| location.upgrade());
+                    let channel_id = room.read(cx).channel_id();
+                    cx.emit(Event::RoomJoined { channel_id });
+                    room.update(cx, |room, cx| room.set_location(location.as_ref(), cx))
+                }
+            } else {
+                self.room = None;
+                Task::ready(Ok(()))
+            }
+        }
+    }
+
+    pub fn room(&self) -> Option<&Model<Room>> {
+        self.room.as_ref().map(|(room, _)| room)
+    }
+
+    pub fn client(&self) -> Arc<Client> {
+        self.client.clone()
+    }
+
+    pub fn pending_invites(&self) -> &HashSet<u64> {
+        &self.pending_invites
+    }
+
+    pub fn report_call_event(&self, operation: &'static str, cx: &mut AppContext) {
+        if let Some(room) = self.room() {
+            let room = room.read(cx);
+            report_call_event_for_room(operation, room.id(), room.channel_id(), &self.client);
+        }
+    }
+}
+
+pub fn report_call_event_for_room(
+    operation: &'static str,
+    room_id: u64,
+    channel_id: Option<ChannelId>,
+    client: &Arc<Client>,
+) {
+    let telemetry = client.telemetry();
+
+    telemetry.report_call_event(operation, Some(room_id), channel_id)
+}
+
+pub fn report_call_event_for_channel(
+    operation: &'static str,
+    channel_id: ChannelId,
+    client: &Arc<Client>,
+    cx: &AppContext,
+) {
+    let room = ActiveCall::global(cx).read(cx).room();
+
+    let telemetry = client.telemetry();
+
+    telemetry.report_call_event(operation, room.map(|r| r.read(cx).id()), Some(channel_id))
+}
+
+#[cfg(test)]
+mod test {
+    use gpui::TestAppContext;
+
+    use crate::OneAtATime;
+
+    #[gpui::test]
+    async fn test_one_at_a_time(cx: &mut TestAppContext) {
+        let mut one_at_a_time = OneAtATime { cancel: None };
+
+        assert_eq!(
+            cx.update(|cx| one_at_a_time.spawn(cx, |_| async { Ok(1) }))
+                .await
+                .unwrap(),
+            Some(1)
+        );
+
+        let (a, b) = cx.update(|cx| {
+            (
+                one_at_a_time.spawn(cx, |_| async {
+                    panic!("");
+                }),
+                one_at_a_time.spawn(cx, |_| async { Ok(3) }),
+            )
+        });
+
+        assert_eq!(a.await.unwrap(), None::<u32>);
+        assert_eq!(b.await.unwrap(), Some(3));
+
+        let promise = cx.update(|cx| one_at_a_time.spawn(cx, |_| async { Ok(4) }));
+        drop(one_at_a_time);
+
+        assert_eq!(promise.await.unwrap(), None);
+    }
+}
--- a/crates/call/src/cross_platform/participant.rs
+++ b/crates/call/src/cross_platform/participant.rs
@@ -0,0 +1,68 @@
+#![cfg_attr(target_os = "windows", allow(unused))]
+
+use anyhow::{anyhow, Result};
+use client::{proto, ParticipantIndex, User};
+use collections::HashMap;
+use gpui::WeakModel;
+use livekit_client::AudioStream;
+use project::Project;
+use std::sync::Arc;
+
+#[cfg(not(target_os = "windows"))]
+pub use livekit_client::id::TrackSid;
+pub use livekit_client::track::{RemoteAudioTrack, RemoteVideoTrack};
+
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+pub enum ParticipantLocation {
+    SharedProject { project_id: u64 },
+    UnsharedProject,
+    External,
+}
+
+impl ParticipantLocation {
+    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
+        match location.and_then(|l| l.variant) {
+            Some(proto::participant_location::Variant::SharedProject(project)) => {
+                Ok(Self::SharedProject {
+                    project_id: project.id,
+                })
+            }
+            Some(proto::participant_location::Variant::UnsharedProject(_)) => {
+                Ok(Self::UnsharedProject)
+            }
+            Some(proto::participant_location::Variant::External(_)) => Ok(Self::External),
+            None => Err(anyhow!("participant location was not provided")),
+        }
+    }
+}
+
+#[derive(Clone, Default)]
+pub struct LocalParticipant {
+    pub projects: Vec<proto::ParticipantProject>,
+    pub active_project: Option<WeakModel<Project>>,
+    pub role: proto::ChannelRole,
+}
+
+pub struct RemoteParticipant {
+    pub user: Arc<User>,
+    pub peer_id: proto::PeerId,
+    pub role: proto::ChannelRole,
+    pub projects: Vec<proto::ParticipantProject>,
+    pub location: ParticipantLocation,
+    pub participant_index: ParticipantIndex,
+    pub muted: bool,
+    pub speaking: bool,
+    #[cfg(not(target_os = "windows"))]
+    pub video_tracks: HashMap<TrackSid, RemoteVideoTrack>,
+    #[cfg(not(target_os = "windows"))]
+    pub audio_tracks: HashMap<TrackSid, (RemoteAudioTrack, AudioStream)>,
+}
+
+impl RemoteParticipant {
+    pub fn has_video_tracks(&self) -> bool {
+        #[cfg(not(target_os = "windows"))]
+        return !self.video_tracks.is_empty();
+        #[cfg(target_os = "windows")]
+        return false;
+    }
+}
--- a/crates/call/src/cross_platform/room.rs
+++ b/crates/call/src/cross_platform/room.rs
--- a/crates/call/src/macos/mod.rs
+++ b/crates/call/src/macos/mod.rs
@@ -0,0 +1,545 @@
+pub mod participant;
+pub mod room;
+
+use crate::call_settings::CallSettings;
+use anyhow::{anyhow, Result};
+use audio::Audio;
+use client::{proto, ChannelId, Client, TypedEnvelope, User, UserStore, ZED_ALWAYS_ACTIVE};
+use collections::HashSet;
+use futures::{channel::oneshot, future::Shared, Future, FutureExt};
+use gpui::{
+    AppContext, AsyncAppContext, Context, EventEmitter, Global, Model, ModelContext, Subscription,
+    Task, WeakModel,
+};
+use postage::watch;
+use project::Project;
+use room::Event;
+use settings::Settings;
+use std::sync::Arc;
+
+pub use participant::ParticipantLocation;
+pub use room::Room;
+
+struct GlobalActiveCall(Model<ActiveCall>);
+
+impl Global for GlobalActiveCall {}
+
+pub fn init(client: Arc<Client>, user_store: Model<UserStore>, cx: &mut AppContext) {
+    CallSettings::register(cx);
+
+    let active_call = cx.new_model(|cx| ActiveCall::new(client, user_store, cx));
+    cx.set_global(GlobalActiveCall(active_call));
+}
+
+pub struct OneAtATime {
+    cancel: Option<oneshot::Sender<()>>,
+}
+
+impl OneAtATime {
+    /// spawn a task in the given context.
+    /// if another task is spawned before that resolves, or if the OneAtATime itself is dropped, the first task will be cancelled and return Ok(None)
+    /// otherwise you'll see the result of the task.
+    fn spawn<F, Fut, R>(&mut self, cx: &mut AppContext, f: F) -> Task<Result<Option<R>>>
+    where
+        F: 'static + FnOnce(AsyncAppContext) -> Fut,
+        Fut: Future<Output = Result<R>>,
+        R: 'static,
+    {
+        let (tx, rx) = oneshot::channel();
+        self.cancel.replace(tx);
+        cx.spawn(|cx| async move {
+            futures::select_biased! {
+                _ = rx.fuse() => Ok(None),
+                result = f(cx).fuse() => result.map(Some),
+            }
+        })
+    }
+
+    fn running(&self) -> bool {
+        self.cancel
+            .as_ref()
+            .is_some_and(|cancel| !cancel.is_canceled())
+    }
+}
+
+#[derive(Clone)]
+pub struct IncomingCall {
+    pub room_id: u64,
+    pub calling_user: Arc<User>,
+    pub participants: Vec<Arc<User>>,
+    pub initial_project: Option<proto::ParticipantProject>,
+}
+
+/// Singleton global maintaining the user's participation in a room across workspaces.
+pub struct ActiveCall {
+    room: Option<(Model<Room>, Vec<Subscription>)>,
+    pending_room_creation: Option<Shared<Task<Result<Model<Room>, Arc<anyhow::Error>>>>>,
+    location: Option<WeakModel<Project>>,
+    _join_debouncer: OneAtATime,
+    pending_invites: HashSet<u64>,
+    incoming_call: (
+        watch::Sender<Option<IncomingCall>>,
+        watch::Receiver<Option<IncomingCall>>,
+    ),
+    client: Arc<Client>,
+    user_store: Model<UserStore>,
+    _subscriptions: Vec<client::Subscription>,
+}
+
+impl EventEmitter<Event> for ActiveCall {}
+
+impl ActiveCall {
+    fn new(client: Arc<Client>, user_store: Model<UserStore>, cx: &mut ModelContext<Self>) -> Self {
+        Self {
+            room: None,
+            pending_room_creation: None,
+            location: None,
+            pending_invites: Default::default(),
+            incoming_call: watch::channel(),
+            _join_debouncer: OneAtATime { cancel: None },
+            _subscriptions: vec![
+                client.add_request_handler(cx.weak_model(), Self::handle_incoming_call),
+                client.add_message_handler(cx.weak_model(), Self::handle_call_canceled),
+            ],
+            client,
+            user_store,
+        }
+    }
+
+    pub fn channel_id(&self, cx: &AppContext) -> Option<ChannelId> {
+        self.room()?.read(cx).channel_id()
+    }
+
+    async fn handle_incoming_call(
+        this: Model<Self>,
+        envelope: TypedEnvelope<proto::IncomingCall>,
+        mut cx: AsyncAppContext,
+    ) -> Result<proto::Ack> {
+        let user_store = this.update(&mut cx, |this, _| this.user_store.clone())?;
+        let call = IncomingCall {
+            room_id: envelope.payload.room_id,
+            participants: user_store
+                .update(&mut cx, |user_store, cx| {
+                    user_store.get_users(envelope.payload.participant_user_ids, cx)
+                })?
+                .await?,
+            calling_user: user_store
+                .update(&mut cx, |user_store, cx| {
+                    user_store.get_user(envelope.payload.calling_user_id, cx)
+                })?
+                .await?,
+            initial_project: envelope.payload.initial_project,
+        };
+        this.update(&mut cx, |this, _| {
+            *this.incoming_call.0.borrow_mut() = Some(call);
+        })?;
+
+        Ok(proto::Ack {})
+    }
+
+    async fn handle_call_canceled(
+        this: Model<Self>,
+        envelope: TypedEnvelope<proto::CallCanceled>,
+        mut cx: AsyncAppContext,
+    ) -> Result<()> {
+        this.update(&mut cx, |this, _| {
+            let mut incoming_call = this.incoming_call.0.borrow_mut();
+            if incoming_call
+                .as_ref()
+                .map_or(false, |call| call.room_id == envelope.payload.room_id)
+            {
+                incoming_call.take();
+            }
+        })?;
+        Ok(())
+    }
+
+    pub fn global(cx: &AppContext) -> Model<Self> {
+        cx.global::<GlobalActiveCall>().0.clone()
+    }
+
+    pub fn try_global(cx: &AppContext) -> Option<Model<Self>> {
+        cx.try_global::<GlobalActiveCall>()
+            .map(|call| call.0.clone())
+    }
+
+    pub fn invite(
+        &mut self,
+        called_user_id: u64,
+        initial_project: Option<Model<Project>>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        if !self.pending_invites.insert(called_user_id) {
+            return Task::ready(Err(anyhow!("user was already invited")));
+        }
+        cx.notify();
+
+        if self._join_debouncer.running() {
+            return Task::ready(Ok(()));
+        }
+
+        let room = if let Some(room) = self.room().cloned() {
+            Some(Task::ready(Ok(room)).shared())
+        } else {
+            self.pending_room_creation.clone()
+        };
+
+        let invite = if let Some(room) = room {
+            cx.spawn(move |_, mut cx| async move {
+                let room = room.await.map_err(|err| anyhow!("{:?}", err))?;
+
+                let initial_project_id = if let Some(initial_project) = initial_project {
+                    Some(
+                        room.update(&mut cx, |room, cx| room.share_project(initial_project, cx))?
+                            .await?,
+                    )
+                } else {
+                    None
+                };
+
+                room.update(&mut cx, move |room, cx| {
+                    room.call(called_user_id, initial_project_id, cx)
+                })?
+                .await?;
+
+                anyhow::Ok(())
+            })
+        } else {
+            let client = self.client.clone();
+            let user_store = self.user_store.clone();
+            let room = cx
+                .spawn(move |this, mut cx| async move {
+                    let create_room = async {
+                        let room = cx
+                            .update(|cx| {
+                                Room::create(
+                                    called_user_id,
+                                    initial_project,
+                                    client,
+                                    user_store,
+                                    cx,
+                                )
+                            })?
+                            .await?;
+
+                        this.update(&mut cx, |this, cx| this.set_room(Some(room.clone()), cx))?
+                            .await?;
+
+                        anyhow::Ok(room)
+                    };
+
+                    let room = create_room.await;
+                    this.update(&mut cx, |this, _| this.pending_room_creation = None)?;
+                    room.map_err(Arc::new)
+                })
+                .shared();
+            self.pending_room_creation = Some(room.clone());
+            cx.background_executor().spawn(async move {
+                room.await.map_err(|err| anyhow!("{:?}", err))?;
+                anyhow::Ok(())
+            })
+        };
+
+        cx.spawn(move |this, mut cx| async move {
+            let result = invite.await;
+            if result.is_ok() {
+                this.update(&mut cx, |this, cx| this.report_call_event("invite", cx))?;
+            } else {
+                //TODO: report collaboration error
+                log::error!("invite failed: {:?}", result);
+            }
+
+            this.update(&mut cx, |this, cx| {
+                this.pending_invites.remove(&called_user_id);
+                cx.notify();
+            })?;
+            result
+        })
+    }
+
+    pub fn cancel_invite(
+        &mut self,
+        called_user_id: u64,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        let room_id = if let Some(room) = self.room() {
+            room.read(cx).id()
+        } else {
+            return Task::ready(Err(anyhow!("no active call")));
+        };
+
+        let client = self.client.clone();
+        cx.background_executor().spawn(async move {
+            client
+                .request(proto::CancelCall {
+                    room_id,
+                    called_user_id,
+                })
+                .await?;
+            anyhow::Ok(())
+        })
+    }
+
+    pub fn incoming(&self) -> watch::Receiver<Option<IncomingCall>> {
+        self.incoming_call.1.clone()
+    }
+
+    pub fn accept_incoming(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
+        if self.room.is_some() {
+            return Task::ready(Err(anyhow!("cannot join while on another call")));
+        }
+
+        let call = if let Some(call) = self.incoming_call.0.borrow_mut().take() {
+            call
+        } else {
+            return Task::ready(Err(anyhow!("no incoming call")));
+        };
+
+        if self.pending_room_creation.is_some() {
+            return Task::ready(Ok(()));
+        }
+
+        let room_id = call.room_id;
+        let client = self.client.clone();
+        let user_store = self.user_store.clone();
+        let join = self
+            ._join_debouncer
+            .spawn(cx, move |cx| Room::join(room_id, client, user_store, cx));
+
+        cx.spawn(|this, mut cx| async move {
+            let room = join.await?;
+            this.update(&mut cx, |this, cx| this.set_room(room.clone(), cx))?
+                .await?;
+            this.update(&mut cx, |this, cx| {
+                this.report_call_event("accept incoming", cx)
+            })?;
+            Ok(())
+        })
+    }
+
+    pub fn decline_incoming(&mut self, _: &mut ModelContext<Self>) -> Result<()> {
+        let call = self
+            .incoming_call
+            .0
+            .borrow_mut()
+            .take()
+            .ok_or_else(|| anyhow!("no incoming call"))?;
+        report_call_event_for_room("decline incoming", call.room_id, None, &self.client);
+        self.client.send(proto::DeclineCall {
+            room_id: call.room_id,
+        })?;
+        Ok(())
+    }
+
+    pub fn join_channel(
+        &mut self,
+        channel_id: ChannelId,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<Option<Model<Room>>>> {
+        if let Some(room) = self.room().cloned() {
+            if room.read(cx).channel_id() == Some(channel_id) {
+                return Task::ready(Ok(Some(room)));
+            } else {
+                room.update(cx, |room, cx| room.clear_state(cx));
+            }
+        }
+
+        if self.pending_room_creation.is_some() {
+            return Task::ready(Ok(None));
+        }
+
+        let client = self.client.clone();
+        let user_store = self.user_store.clone();
+        let join = self._join_debouncer.spawn(cx, move |cx| async move {
+            Room::join_channel(channel_id, client, user_store, cx).await
+        });
+
+        cx.spawn(|this, mut cx| async move {
+            let room = join.await?;
+            this.update(&mut cx, |this, cx| this.set_room(room.clone(), cx))?
+                .await?;
+            this.update(&mut cx, |this, cx| {
+                this.report_call_event("join channel", cx)
+            })?;
+            Ok(room)
+        })
+    }
+
+    pub fn hang_up(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
+        cx.notify();
+        self.report_call_event("hang up", cx);
+
+        Audio::end_call(cx);
+
+        let channel_id = self.channel_id(cx);
+        if let Some((room, _)) = self.room.take() {
+            cx.emit(Event::RoomLeft { channel_id });
+            room.update(cx, |room, cx| room.leave(cx))
+        } else {
+            Task::ready(Ok(()))
+        }
+    }
+
+    pub fn share_project(
+        &mut self,
+        project: Model<Project>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<u64>> {
+        if let Some((room, _)) = self.room.as_ref() {
+            self.report_call_event("share project", cx);
+            room.update(cx, |room, cx| room.share_project(project, cx))
+        } else {
+            Task::ready(Err(anyhow!("no active call")))
+        }
+    }
+
+    pub fn unshare_project(
+        &mut self,
+        project: Model<Project>,
+        cx: &mut ModelContext<Self>,
+    ) -> Result<()> {
+        if let Some((room, _)) = self.room.as_ref() {
+            self.report_call_event("unshare project", cx);
+            room.update(cx, |room, cx| room.unshare_project(project, cx))
+        } else {
+            Err(anyhow!("no active call"))
+        }
+    }
+
+    pub fn location(&self) -> Option<&WeakModel<Project>> {
+        self.location.as_ref()
+    }
+
+    pub fn set_location(
+        &mut self,
+        project: Option<&Model<Project>>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        if project.is_some() || !*ZED_ALWAYS_ACTIVE {
+            self.location = project.map(|project| project.downgrade());
+            if let Some((room, _)) = self.room.as_ref() {
+                return room.update(cx, |room, cx| room.set_location(project, cx));
+            }
+        }
+        Task::ready(Ok(()))
+    }
+
+    fn set_room(
+        &mut self,
+        room: Option<Model<Room>>,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<()>> {
+        if room.as_ref() == self.room.as_ref().map(|room| &room.0) {
+            Task::ready(Ok(()))
+        } else {
+            cx.notify();
+            if let Some(room) = room {
+                if room.read(cx).status().is_offline() {
+                    self.room = None;
+                    Task::ready(Ok(()))
+                } else {
+                    let subscriptions = vec![
+                        cx.observe(&room, |this, room, cx| {
+                            if room.read(cx).status().is_offline() {
+                                this.set_room(None, cx).detach_and_log_err(cx);
+                            }
+
+                            cx.notify();
+                        }),
+                        cx.subscribe(&room, |_, _, event, cx| cx.emit(event.clone())),
+                    ];
+                    self.room = Some((room.clone(), subscriptions));
+                    let location = self
+                        .location
+                        .as_ref()
+                        .and_then(|location| location.upgrade());
+                    let channel_id = room.read(cx).channel_id();
+                    cx.emit(Event::RoomJoined { channel_id });
+                    room.update(cx, |room, cx| room.set_location(location.as_ref(), cx))
+                }
+            } else {
+                self.room = None;
+                Task::ready(Ok(()))
+            }
+        }
+    }
+
+    pub fn room(&self) -> Option<&Model<Room>> {
+        self.room.as_ref().map(|(room, _)| room)
+    }
+
+    pub fn client(&self) -> Arc<Client> {
+        self.client.clone()
+    }
+
+    pub fn pending_invites(&self) -> &HashSet<u64> {
+        &self.pending_invites
+    }
+
+    pub fn report_call_event(&self, operation: &'static str, cx: &mut AppContext) {
+        if let Some(room) = self.room() {
+            let room = room.read(cx);
+            report_call_event_for_room(operation, room.id(), room.channel_id(), &self.client);
+        }
+    }
+}
+
+pub fn report_call_event_for_room(
+    operation: &'static str,
+    room_id: u64,
+    channel_id: Option<ChannelId>,
+    client: &Arc<Client>,
+) {
+    let telemetry = client.telemetry();
+
+    telemetry.report_call_event(operation, Some(room_id), channel_id)
+}
+
+pub fn report_call_event_for_channel(
+    operation: &'static str,
+    channel_id: ChannelId,
+    client: &Arc<Client>,
+    cx: &AppContext,
+) {
+    let room = ActiveCall::global(cx).read(cx).room();
+
+    let telemetry = client.telemetry();
+
+    telemetry.report_call_event(operation, room.map(|r| r.read(cx).id()), Some(channel_id))
+}
+
+#[cfg(test)]
+mod test {
+    use gpui::TestAppContext;
+
+    use crate::OneAtATime;
+
+    #[gpui::test]
+    async fn test_one_at_a_time(cx: &mut TestAppContext) {
+        let mut one_at_a_time = OneAtATime { cancel: None };
+
+        assert_eq!(
+            cx.update(|cx| one_at_a_time.spawn(cx, |_| async { Ok(1) }))
+                .await
+                .unwrap(),
+            Some(1)
+        );
+
+        let (a, b) = cx.update(|cx| {
+            (
+                one_at_a_time.spawn(cx, |_| async {
+                    panic!("");
+                }),
+                one_at_a_time.spawn(cx, |_| async { Ok(3) }),
+            )
+        });
+
+        assert_eq!(a.await.unwrap(), None::<u32>);
+        assert_eq!(b.await.unwrap(), Some(3));
+
+        let promise = cx.update(|cx| one_at_a_time.spawn(cx, |_| async { Ok(4) }));
+        drop(one_at_a_time);
+
+        assert_eq!(promise.await.unwrap(), None);
+    }
+}
--- a/crates/call/src/macos/participant.rs
+++ b/crates/call/src/macos/participant.rs
@@ -3,8 +3,8 @@ use client::ParticipantIndex;
 use client::{proto, User};
 use collections::HashMap;
 use gpui::WeakModel;
-pub use live_kit_client::Frame;
-pub use live_kit_client::{RemoteAudioTrack, RemoteVideoTrack};
+pub use livekit_client_macos::Frame;
+pub use livekit_client_macos::{RemoteAudioTrack, RemoteVideoTrack};
 use project::Project;
 use std::sync::Arc;

@@ -49,6 +49,12 @@ pub struct RemoteParticipant {
    pub participant_index: ParticipantIndex,
    pub muted: bool,
    pub speaking: bool,
-    pub video_tracks: HashMap<live_kit_client::Sid, Arc<RemoteVideoTrack>>,
-    pub audio_tracks: HashMap<live_kit_client::Sid, Arc<RemoteAudioTrack>>,
+    pub video_tracks: HashMap<livekit_client_macos::Sid, Arc<RemoteVideoTrack>>,
+    pub audio_tracks: HashMap<livekit_client_macos::Sid, Arc<RemoteAudioTrack>>,
+}
+
+impl RemoteParticipant {
+    pub fn has_video_tracks(&self) -> bool {
+        !self.video_tracks.is_empty()
+    }
 }
--- a/crates/call/src/macos/room.rs
+++ b/crates/call/src/macos/room.rs
@@ -15,7 +15,7 @@ use gpui::{
    AppContext, AsyncAppContext, Context, EventEmitter, Model, ModelContext, Task, WeakModel,
 };
 use language::LanguageRegistry;
-use live_kit_client::{LocalAudioTrack, LocalTrackPublication, LocalVideoTrack, RoomUpdate};
+use livekit_client_macos::{LocalAudioTrack, LocalTrackPublication, LocalVideoTrack, RoomUpdate};
 use postage::{sink::Sink, stream::Stream, watch};
 use project::Project;
 use settings::Settings as _;
@@ -97,7 +97,7 @@ impl Room {
        if let Some(live_kit) = self.live_kit.as_ref() {
            matches!(
                *live_kit.room.status().borrow(),
-                live_kit_client::ConnectionState::Connected { .. }
+                livekit_client_macos::ConnectionState::Connected { .. }
            )
        } else {
            false
@@ -113,7 +113,7 @@ impl Room {
        cx: &mut ModelContext<Self>,
    ) -> Self {
        let live_kit_room = if let Some(connection_info) = live_kit_connection_info {
-            let room = live_kit_client::Room::new();
+            let room = livekit_client_macos::Room::new();
            let mut status = room.status();
            // Consume the initial status of the room.
            let _ = status.try_recv();
@@ -125,7 +125,7 @@ impl Room {
                        break;
                    };

-                    if status == live_kit_client::ConnectionState::Disconnected {
+                    if status == livekit_client_macos::ConnectionState::Disconnected {
                        this.update(&mut cx, |this, cx| this.leave(cx).log_err())
                            .ok();
                        break;
@@ -156,7 +156,7 @@ impl Room {
            cx.spawn(|this, mut cx| async move {
                connect.await?;
                this.update(&mut cx, |this, cx| {
-                    if this.can_use_microphone() {
+                    if this.can_use_microphone(cx) {
                        if let Some(live_kit) = &this.live_kit {
                            if !live_kit.muted_by_user && !live_kit.deafened {
                                return this.share_microphone(cx);
@@ -1317,7 +1317,7 @@ impl Room {
        self.live_kit.as_ref().map(|live_kit| live_kit.deafened)
    }

-    pub fn can_use_microphone(&self) -> bool {
+    pub fn can_use_microphone(&self, _cx: &AppContext) -> bool {
        use proto::ChannelRole::*;
        match self.local_participant.role {
            Admin | Member | Talker => true,
@@ -1631,7 +1631,7 @@ impl Room {
    }

    #[cfg(any(test, feature = "test-support"))]
-    pub fn set_display_sources(&self, sources: Vec<live_kit_client::MacOSDisplay>) {
+    pub fn set_display_sources(&self, sources: Vec<livekit_client_macos::MacOSDisplay>) {
        self.live_kit
            .as_ref()
            .unwrap()
@@ -1641,7 +1641,7 @@ impl Room {
 }

 struct LiveKitRoom {
-    room: Arc<live_kit_client::Room>,
+    room: Arc<livekit_client_macos::Room>,
    screen_track: LocalTrack,
    microphone_track: LocalTrack,
    /// Tracks whether we're currently in a muted state due to auto-mute from deafening or manual mute performed by user.
--- 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
@@ -5,9 +5,9 @@ HTTP_PORT = 8080
 API_TOKEN = "secret"
 INVITE_LINK_PREFIX = "http://localhost:3000/invites/"
 ZED_ENVIRONMENT = "development"
-LIVE_KIT_SERVER = "http://localhost:7880"
-LIVE_KIT_KEY = "devkey"
-LIVE_KIT_SECRET = "secret"
+LIVEKIT_SERVER = "http://localhost:7880"
+LIVEKIT_KEY = "devkey"
+LIVEKIT_SECRET = "secret"
 BLOB_STORE_ACCESS_KEY = "the-blob-store-access-key"
 BLOB_STORE_SECRET_KEY = "the-blob-store-secret-key"
 BLOB_STORE_BUCKET = "the-extensions-bucket"
@@ -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
@@ -40,7 +39,7 @@ google_ai.workspace = true
 hex.workspace = true
 http_client.workspace = true
 jsonwebtoken.workspace = true
-live_kit_server.workspace = true
+livekit_server.workspace = true
 log.workspace = true
 nanoid.workspace = true
 open_ai.workspace = true
@@ -101,7 +100,6 @@ hyper.workspace = true
 indoc.workspace = true
 language = { workspace = true, features = ["test-support"] }
 language_model = { workspace = true, features = ["test-support"] }
-live_kit_client = { workspace = true, features = ["test-support"] }
 lsp = { workspace = true, features = ["test-support"] }
 menu.workspace = true
 multi_buffer = { workspace = true, features = ["test-support"] }
@@ -125,5 +123,11 @@ util.workspace = true
 workspace = { workspace = true, features = ["test-support"] }
 worktree = { workspace = true, features = ["test-support"] }

+[target.'cfg(target_os = "macos")'.dev-dependencies]
+livekit_client_macos = { workspace = true, features = ["test-support"] }
+
+[target.'cfg(not(target_os = "macos"))'.dev-dependencies]
+livekit_client =  {workspace = true, features = ["test-support"] }
+
 [package.metadata.cargo-machete]
 ignored = ["async-stripe"]
--- a/crates/collab/k8s/collab.template.yml
+++ b/crates/collab/k8s/collab.template.yml
@@ -109,17 +109,17 @@ spec:
                secretKeyRef:
                  name: zed-client
                  key: checksum-seed
-            - name: LIVE_KIT_SERVER
+            - name: LIVEKIT_SERVER
              valueFrom:
                secretKeyRef:
                  name: livekit
                  key: server
-            - name: LIVE_KIT_KEY
+            - name: LIVEKIT_KEY
              valueFrom:
                secretKeyRef:
                  name: livekit
                  key: key
-            - name: LIVE_KIT_SECRET
+            - name: LIVEKIT_SECRET
              valueFrom:
                secretKeyRef:
                  name: livekit
@@ -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/db/queries/channels.rs
+++ b/crates/collab/src/db/queries/channels.rs
@@ -154,9 +154,9 @@ impl Database {
            }
            let role = role.unwrap();

-            let live_kit_room = format!("channel-{}", nanoid::nanoid!(30));
+            let livekit_room = format!("channel-{}", nanoid::nanoid!(30));
            let room_id = self
-                .get_or_create_channel_room(channel_id, &live_kit_room, &tx)
+                .get_or_create_channel_room(channel_id, &livekit_room, &tx)
                .await?;

            self.join_channel_room_internal(room_id, user_id, connection, role, &tx)
@@ -896,7 +896,7 @@ impl Database {
    pub(crate) async fn get_or_create_channel_room(
        &self,
        channel_id: ChannelId,
-        live_kit_room: &str,
+        livekit_room: &str,
        tx: &DatabaseTransaction,
    ) -> Result<RoomId> {
        let room = room::Entity::find()
@@ -909,7 +909,7 @@ impl Database {
        } else {
            let result = room::Entity::insert(room::ActiveModel {
                channel_id: ActiveValue::Set(Some(channel_id)),
-                live_kit_room: ActiveValue::Set(live_kit_room.to_string()),
+                live_kit_room: ActiveValue::Set(livekit_room.to_string()),
                ..Default::default()
            })
            .exec(tx)
--- a/crates/collab/src/db/queries/rooms.rs
+++ b/crates/collab/src/db/queries/rooms.rs
@@ -103,11 +103,11 @@ impl Database {
        &self,
        user_id: UserId,
        connection: ConnectionId,
-        live_kit_room: &str,
+        livekit_room: &str,
    ) -> Result<proto::Room> {
        self.transaction(|tx| async move {
            let room = room::ActiveModel {
-                live_kit_room: ActiveValue::set(live_kit_room.into()),
+                live_kit_room: ActiveValue::set(livekit_room.into()),
                ..Default::default()
            }
            .insert(&*tx)
@@ -1316,7 +1316,7 @@ impl Database {
            channel,
            proto::Room {
                id: db_room.id.to_proto(),
-                live_kit_room: db_room.live_kit_room,
+                livekit_room: db_room.live_kit_room,
                participants: participants.into_values().collect(),
                pending_participants,
                followers,
--- 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;
@@ -151,14 +150,10 @@ 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 live_kit_server: Option<String>,
-    pub live_kit_key: Option<String>,
-    pub live_kit_secret: Option<String>,
+    pub livekit_server: Option<String>,
+    pub livekit_key: Option<String>,
+    pub livekit_secret: Option<String>,
    pub llm_database_url: Option<String>,
    pub llm_database_max_connections: Option<u32>,
    pub llm_database_migrations_path: Option<PathBuf>,
@@ -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>,
@@ -210,9 +208,9 @@ impl Config {
            database_max_connections: 0,
            api_token: "".into(),
            invite_link_prefix: "".into(),
-            live_kit_server: None,
-            live_kit_key: None,
-            live_kit_secret: None,
+            livekit_server: None,
+            livekit_key: None,
+            livekit_secret: None,
            llm_database_url: None,
            llm_database_max_connections: None,
            llm_database_migrations_path: None,
@@ -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,
@@ -277,13 +274,12 @@ impl ServiceMode {
 pub struct AppState {
    pub db: Arc<Database>,
    pub llm_db: Option<Arc<LlmDatabase>>,
-    pub live_kit_client: Option<Arc<dyn live_kit_server::api::Client>>,
+    pub livekit_client: Option<Arc<dyn livekit_server::api::Client>>,
    pub blob_store_client: Option<aws_sdk_s3::Client>,
    pub stripe_client: Option<Arc<stripe::Client>>,
    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,
 }
@@ -309,17 +305,17 @@ impl AppState {
            None
        };

-        let live_kit_client = if let Some(((server, key), secret)) = config
-            .live_kit_server
+        let livekit_client = if let Some(((server, key), secret)) = config
+            .livekit_server
            .as_ref()
-            .zip(config.live_kit_key.as_ref())
-            .zip(config.live_kit_secret.as_ref())
+            .zip(config.livekit_key.as_ref())
+            .zip(config.livekit_secret.as_ref())
        {
-            Some(Arc::new(live_kit_server::api::LiveKitClient::new(
+            Some(Arc::new(livekit_server::api::LiveKitClient::new(
                server.clone(),
                key.clone(),
                secret.clone(),
-            )) as Arc<dyn live_kit_server::api::Client>)
+            )) as Arc<dyn livekit_server::api::Client>)
        } else {
            None
        };
@@ -329,7 +325,7 @@ impl AppState {
        let this = Self {
            db: db.clone(),
            llm_db,
-            live_kit_client,
+            livekit_client,
            blob_store_client: build_blob_store_client(&config).await.log_err(),
            stripe_billing: stripe_client
                .clone()
@@ -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 +309,7 @@ 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::UpdateGitBranch>)
            .add_request_handler(forward_mutating_project_request::<proto::GetCompletions>)
            .add_request_handler(
@@ -418,7 +419,7 @@ impl Server {
        let peer = self.peer.clone();
        let timeout = self.app_state.executor.sleep(CLEANUP_TIMEOUT);
        let pool = self.connection_pool.clone();
-        let live_kit_client = self.app_state.live_kit_client.clone();
+        let livekit_client = self.app_state.livekit_client.clone();

        let span = info_span!("start server");
        self.app_state.executor.spawn_detached(
@@ -463,8 +464,8 @@ impl Server {
                    for room_id in room_ids {
                        let mut contacts_to_update = HashSet::default();
                        let mut canceled_calls_to_user_ids = Vec::new();
-                        let mut live_kit_room = String::new();
-                        let mut delete_live_kit_room = false;
+                        let mut livekit_room = String::new();
+                        let mut delete_livekit_room = false;

                        if let Some(mut refreshed_room) = app_state
                            .db
@@ -487,8 +488,8 @@ impl Server {
                                .extend(refreshed_room.canceled_calls_to_user_ids.iter().copied());
                            canceled_calls_to_user_ids =
                                mem::take(&mut refreshed_room.canceled_calls_to_user_ids);
-                            live_kit_room = mem::take(&mut refreshed_room.room.live_kit_room);
-                            delete_live_kit_room = refreshed_room.room.participants.is_empty();
+                            livekit_room = mem::take(&mut refreshed_room.room.livekit_room);
+                            delete_livekit_room = refreshed_room.room.participants.is_empty();
                        }

                        {
@@ -539,9 +540,9 @@ impl Server {
                            }
                        }

-                        if let Some(live_kit) = live_kit_client.as_ref() {
-                            if delete_live_kit_room {
-                                live_kit.delete_room(live_kit_room).await.trace_err();
+                        if let Some(live_kit) = livekit_client.as_ref() {
+                            if delete_livekit_room {
+                                live_kit.delete_room(livekit_room).await.trace_err();
                            }
                        }
                    }
@@ -1210,15 +1211,15 @@ async fn create_room(
    response: Response<proto::CreateRoom>,
    session: Session,
 ) -> Result<()> {
-    let live_kit_room = nanoid::nanoid!(30);
+    let livekit_room = nanoid::nanoid!(30);

    let live_kit_connection_info = util::maybe!(async {
-        let live_kit = session.app_state.live_kit_client.as_ref();
+        let live_kit = session.app_state.livekit_client.as_ref();
        let live_kit = live_kit?;
        let user_id = session.user_id().to_string();

        let token = live_kit
-            .room_token(&live_kit_room, &user_id.to_string())
+            .room_token(&livekit_room, &user_id.to_string())
            .trace_err()?;

        Some(proto::LiveKitConnectionInfo {
@@ -1232,7 +1233,7 @@ async fn create_room(
    let room = session
        .db()
        .await
-        .create_room(session.user_id(), session.connection_id, &live_kit_room)
+        .create_room(session.user_id(), session.connection_id, &livekit_room)
        .await?;

    response.send(proto::CreateRoomResponse {
@@ -1284,22 +1285,22 @@ async fn join_room(
            .trace_err();
    }

-    let live_kit_connection_info =
-        if let Some(live_kit) = session.app_state.live_kit_client.as_ref() {
-            live_kit
-                .room_token(
-                    &joined_room.room.live_kit_room,
-                    &session.user_id().to_string(),
-                )
-                .trace_err()
-                .map(|token| proto::LiveKitConnectionInfo {
-                    server_url: live_kit.url().into(),
-                    token,
-                    can_publish: true,
-                })
-        } else {
-            None
-        };
+    let live_kit_connection_info = if let Some(live_kit) = session.app_state.livekit_client.as_ref()
+    {
+        live_kit
+            .room_token(
+                &joined_room.room.livekit_room,
+                &session.user_id().to_string(),
+            )
+            .trace_err()
+            .map(|token| proto::LiveKitConnectionInfo {
+                server_url: live_kit.url().into(),
+                token,
+                can_publish: true,
+            })
+    } else {
+        None
+    };

    response.send(proto::JoinRoomResponse {
        room: Some(joined_room.room),
@@ -1506,7 +1507,7 @@ async fn set_room_participant_role(
    let user_id = UserId::from_proto(request.user_id);
    let role = ChannelRole::from(request.role());

-    let (live_kit_room, can_publish) = {
+    let (livekit_room, can_publish) = {
        let room = session
            .db()
            .await
@@ -1518,18 +1519,18 @@ async fn set_room_participant_role(
            )
            .await?;

-        let live_kit_room = room.live_kit_room.clone();
+        let livekit_room = room.livekit_room.clone();
        let can_publish = ChannelRole::from(request.role()).can_use_microphone();
        room_updated(&room, &session.peer);
-        (live_kit_room, can_publish)
+        (livekit_room, can_publish)
    };

-    if let Some(live_kit) = session.app_state.live_kit_client.as_ref() {
+    if let Some(live_kit) = session.app_state.livekit_client.as_ref() {
        live_kit
            .update_participant(
-                live_kit_room.clone(),
+                livekit_room.clone(),
                request.user_id.to_string(),
-                live_kit_server::proto::ParticipantPermission {
+                livekit_server::proto::ParticipantPermission {
                    can_subscribe: true,
                    can_publish,
                    can_publish_data: can_publish,
@@ -3091,7 +3092,7 @@ async fn join_channel_internal(
        let live_kit_connection_info =
            session
                .app_state
-                .live_kit_client
+                .livekit_client
                .as_ref()
                .and_then(|live_kit| {
                    let (can_publish, token) = if role == ChannelRole::Guest {
@@ -3099,7 +3100,7 @@ async fn join_channel_internal(
                            false,
                            live_kit
                                .guest_token(
-                                    &joined_room.room.live_kit_room,
+                                    &joined_room.room.livekit_room,
                                    &session.user_id().to_string(),
                                )
                                .trace_err()?,
@@ -3109,7 +3110,7 @@ async fn join_channel_internal(
                            true,
                            live_kit
                                .room_token(
-                                    &joined_room.room.live_kit_room,
+                                    &joined_room.room.livekit_room,
                                    &session.user_id().to_string(),
                                )
                                .trace_err()?,
@@ -4313,8 +4314,8 @@ async fn leave_room_for_session(session: &Session, connection_id: ConnectionId)

    let room_id;
    let canceled_calls_to_user_ids;
-    let live_kit_room;
-    let delete_live_kit_room;
+    let livekit_room;
+    let delete_livekit_room;
    let room;
    let channel;

@@ -4327,8 +4328,8 @@ async fn leave_room_for_session(session: &Session, connection_id: ConnectionId)

        room_id = RoomId::from_proto(left_room.room.id);
        canceled_calls_to_user_ids = mem::take(&mut left_room.canceled_calls_to_user_ids);
-        live_kit_room = mem::take(&mut left_room.room.live_kit_room);
-        delete_live_kit_room = left_room.deleted;
+        livekit_room = mem::take(&mut left_room.room.livekit_room);
+        delete_livekit_room = left_room.deleted;
        room = mem::take(&mut left_room.room);
        channel = mem::take(&mut left_room.channel);

@@ -4368,14 +4369,14 @@ async fn leave_room_for_session(session: &Session, connection_id: ConnectionId)
        update_user_contacts(contact_user_id, session).await?;
    }

-    if let Some(live_kit) = session.app_state.live_kit_client.as_ref() {
+    if let Some(live_kit) = session.app_state.livekit_client.as_ref() {
        live_kit
-            .remove_participant(live_kit_room.clone(), session.user_id().to_string())
+            .remove_participant(livekit_room.clone(), session.user_id().to_string())
            .await
            .trace_err();

-        if delete_live_kit_room {
-            live_kit.delete_room(live_kit_room).await.trace_err();
+        if delete_livekit_room {
+            live_kit.delete_room(livekit_room).await.trace_err();
        }
    }

--- a/crates/collab/src/tests.rs
+++ b/crates/collab/src/tests.rs
@@ -1,3 +1,6 @@
+// todo(windows): Actually run the tests
+#![cfg(not(target_os = "windows"))]
+
 use std::sync::Arc;

 use call::Room;
--- a/crates/collab/src/tests/channel_guest_tests.rs
+++ b/crates/collab/src/tests/channel_guest_tests.rs
@@ -107,7 +107,9 @@ async fn test_channel_guest_promotion(cx_a: &mut TestAppContext, cx_b: &mut Test
    });
    assert!(project_b.read_with(cx_b, |project, cx| project.is_read_only(cx)));
    assert!(editor_b.update(cx_b, |e, cx| e.read_only(cx)));
-    assert!(room_b.read_with(cx_b, |room, _| !room.can_use_microphone()));
+    cx_b.update(|cx_b| {
+        assert!(room_b.read_with(cx_b, |room, cx| !room.can_use_microphone(cx)));
+    });
    assert!(room_b
        .update(cx_b, |room, cx| room.share_microphone(cx))
        .await
@@ -133,7 +135,9 @@ async fn test_channel_guest_promotion(cx_a: &mut TestAppContext, cx_b: &mut Test
    assert!(editor_b.update(cx_b, |editor, cx| !editor.read_only(cx)));

    // B sees themselves as muted, and can unmute.
-    assert!(room_b.read_with(cx_b, |room, _| room.can_use_microphone()));
+    cx_b.update(|cx_b| {
+        assert!(room_b.read_with(cx_b, |room, cx| room.can_use_microphone(cx)));
+    });
    room_b.read_with(cx_b, |room, _| assert!(room.is_muted()));
    room_b.update(cx_b, |room, cx| room.toggle_mute(cx));
    cx_a.run_until_parked();
@@ -226,7 +230,9 @@ async fn test_channel_requires_zed_cla(cx_a: &mut TestAppContext, cx_b: &mut Tes
    let room_b = cx_b
        .read(ActiveCall::global)
        .update(cx_b, |call, _| call.room().unwrap().clone());
-    assert!(room_b.read_with(cx_b, |room, _| !room.can_use_microphone()));
+    cx_b.update(|cx_b| {
+        assert!(room_b.read_with(cx_b, |room, cx| !room.can_use_microphone(cx)));
+    });

    // A tries to grant write access to B, but cannot because B has not
    // yet signed the zed CLA.
@@ -244,7 +250,9 @@ async fn test_channel_requires_zed_cla(cx_a: &mut TestAppContext, cx_b: &mut Tes
        .unwrap_err();
    cx_a.run_until_parked();
    assert!(room_b.read_with(cx_b, |room, _| !room.can_share_projects()));
-    assert!(room_b.read_with(cx_b, |room, _| !room.can_use_microphone()));
+    cx_b.update(|cx_b| {
+        assert!(room_b.read_with(cx_b, |room, cx| !room.can_use_microphone(cx)));
+    });

    // A tries to grant write access to B, but cannot because B has not
    // yet signed the zed CLA.
@@ -262,7 +270,9 @@ async fn test_channel_requires_zed_cla(cx_a: &mut TestAppContext, cx_b: &mut Tes
        .unwrap();
    cx_a.run_until_parked();
    assert!(room_b.read_with(cx_b, |room, _| !room.can_share_projects()));
-    assert!(room_b.read_with(cx_b, |room, _| room.can_use_microphone()));
+    cx_b.update(|cx_b| {
+        assert!(room_b.read_with(cx_b, |room, cx| room.can_use_microphone(cx)));
+    });

    // User B signs the zed CLA.
    server
@@ -287,5 +297,7 @@ async fn test_channel_requires_zed_cla(cx_a: &mut TestAppContext, cx_b: &mut Tes
        .unwrap();
    cx_a.run_until_parked();
    assert!(room_b.read_with(cx_b, |room, _| room.can_share_projects()));
-    assert!(room_b.read_with(cx_b, |room, _| room.can_use_microphone()));
+    cx_b.update(|cx_b| {
+        assert!(room_b.read_with(cx_b, |room, cx| room.can_use_microphone(cx)));
+    });
 }
--- 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::{
@@ -12,17 +12,11 @@ use gpui::{
    View, VisualContext, VisualTestContext,
 };
 use language::Capability;
-use live_kit_client::MacOSDisplay;
 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;

@@ -428,106 +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 = MacOSDisplay::new();
-    active_call_b
-        .update(cx_b, |call, cx| call.set_location(None, cx))
-        .await
-        .unwrap();
-    active_call_b
-        .update(cx_b, |call, cx| {
-            call.room().unwrap().update(cx, |room, cx| {
-                room.set_display_sources(vec![display.clone()]);
-                room.share_screen(cx)
+    // 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();
-    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")
-    });
+            .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| {
+        // 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.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| {
+        // 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(),
-            multibuffer_editor_a.item_id()
-        )
-    });
+            workspace_a.update(cx_a, |workspace, cx| workspace
+                .active_item(cx)
+                .unwrap()
+                .item_id()),
+            shared_screen.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| {
+        // 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 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
@@ -25,7 +25,6 @@ use language::{
    tree_sitter_rust, tree_sitter_typescript, Diagnostic, DiagnosticEntry, FakeLspAdapter,
    Language, LanguageConfig, LanguageMatcher, LineEnding, OffsetRangeExt, Point, Rope,
 };
-use live_kit_client::MacOSDisplay;
 use lsp::LanguageServerId;
 use parking_lot::Mutex;
 use project::lsp_store::FormatTarget;
@@ -241,56 +240,60 @@ async fn test_basic_calls(
        }
    );

-    // User A shares their screen
-    let display = MacOSDisplay::new();
-    let events_b = active_call_events(cx_b);
-    let events_c = active_call_events(cx_c);
-    active_call_a
-        .update(cx_a, |call, cx| {
-            call.room().unwrap().update(cx, |room, cx| {
-                room.set_display_sources(vec![display.clone()]);
-                room.share_screen(cx)
+    // 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();
+            .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.
@@ -329,7 +332,7 @@ async fn test_basic_calls(
    // to automatically leave the room. User C leaves the room as well because
    // nobody else is in there.
    server
-        .test_live_kit_server
+        .test_livekit_server
        .disconnect_client(client_b.user_id().unwrap().to_string())
        .await;
    executor.run_until_parked();
@@ -844,7 +847,7 @@ async fn test_client_disconnecting_from_room(
    // User B gets disconnected from the LiveKit server, which causes it
    // to automatically leave the room.
    server
-        .test_live_kit_server
+        .test_livekit_server
        .disconnect_client(client_b.user_id().unwrap().to_string())
        .await;
    executor.run_until_parked();
@@ -1943,7 +1946,7 @@ async fn test_mute_deafen(
    room_a.read_with(cx_a, |room, _| assert!(!room.is_muted()));
    room_b.read_with(cx_b, |room, _| assert!(!room.is_muted()));

-    // Users A and B are both muted.
+    // Users A and B are both unmuted.
    assert_eq!(
        participant_audio_state(&room_a, cx_a),
        &[ParticipantAudioState {
@@ -2075,7 +2078,17 @@ async fn test_mute_deafen(
                    audio_tracks_playing: participant
                        .audio_tracks
                        .values()
-                        .map(|track| track.is_playing())
+                        .map({
+                            #[cfg(target_os = "macos")]
+                            {
+                                |track| track.is_playing()
+                            }
+
+                            #[cfg(not(target_os = "macos"))]
+                            {
+                                |(track, _)| track.rtc_track().enabled()
+                            }
+                        })
                        .collect(),
                })
                .collect::<Vec<_>>()
@@ -2561,19 +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")],
@@ -2585,25 +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())],
@@ -2611,40 +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
@@ -2667,19 +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")],
@@ -2691,25 +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())],
@@ -2717,43 +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")],
        );
    });
@@ -6016,6 +6028,8 @@ 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,
@@ -6058,13 +6072,13 @@ 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 = MacOSDisplay::new();
+    let display = gpui::TestScreenCaptureSource::new();
+    cx_a.set_screen_capture_sources(vec![display]);
    active_call_a
        .update(cx_a, |call, cx| {
-            call.room().unwrap().update(cx, |room, cx| {
-                room.set_display_sources(vec![display.clone()]);
-                room.share_screen(cx)
-            })
+            call.room()
+                .unwrap()
+                .update(cx, |room, cx| room.share_screen(cx))
        })
        .await
        .unwrap();
--- 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/test_server.rs
+++ b/crates/collab/src/tests/test_server.rs
@@ -45,9 +45,15 @@ use std::{
 };
 use workspace::{Workspace, WorkspaceStore};

+#[cfg(not(target_os = "macos"))]
+use livekit_client::test::TestServer as LivekitTestServer;
+
+#[cfg(target_os = "macos")]
+use livekit_client_macos::TestServer as LivekitTestServer;
+
 pub struct TestServer {
    pub app_state: Arc<AppState>,
-    pub test_live_kit_server: Arc<live_kit_client::TestServer>,
+    pub test_livekit_server: Arc<LivekitTestServer>,
    server: Arc<Server>,
    next_github_user_id: i32,
    connection_killers: Arc<Mutex<HashMap<PeerId, Arc<AtomicBool>>>>,
@@ -79,7 +85,7 @@ pub struct ContactsSummary {

 impl TestServer {
    pub async fn start(deterministic: BackgroundExecutor) -> Self {
-        static NEXT_LIVE_KIT_SERVER_ID: AtomicUsize = AtomicUsize::new(0);
+        static NEXT_LIVEKIT_SERVER_ID: AtomicUsize = AtomicUsize::new(0);

        let use_postgres = env::var("USE_POSTGRES").ok();
        let use_postgres = use_postgres.as_deref();
@@ -88,16 +94,16 @@ impl TestServer {
        } else {
            TestDb::sqlite(deterministic.clone())
        };
-        let live_kit_server_id = NEXT_LIVE_KIT_SERVER_ID.fetch_add(1, SeqCst);
-        let live_kit_server = live_kit_client::TestServer::create(
-            format!("http://livekit.{}.test", live_kit_server_id),
-            format!("devkey-{}", live_kit_server_id),
-            format!("secret-{}", live_kit_server_id),
+        let livekit_server_id = NEXT_LIVEKIT_SERVER_ID.fetch_add(1, SeqCst);
+        let livekit_server = LivekitTestServer::create(
+            format!("http://livekit.{}.test", livekit_server_id),
+            format!("devkey-{}", livekit_server_id),
+            format!("secret-{}", livekit_server_id),
            deterministic.clone(),
        )
        .unwrap();
        let executor = Executor::Deterministic(deterministic.clone());
-        let app_state = Self::build_app_state(&test_db, &live_kit_server, executor.clone()).await;
+        let app_state = Self::build_app_state(&test_db, &livekit_server, executor.clone()).await;
        let epoch = app_state
            .db
            .create_server(&app_state.config.zed_environment)
@@ -114,7 +120,7 @@ impl TestServer {
            forbid_connections: Default::default(),
            next_github_user_id: 0,
            _test_db: test_db,
-            test_live_kit_server: live_kit_server,
+            test_livekit_server: livekit_server,
        }
    }

@@ -500,19 +506,18 @@ impl TestServer {

    pub async fn build_app_state(
        test_db: &TestDb,
-        live_kit_test_server: &live_kit_client::TestServer,
+        livekit_test_server: &LivekitTestServer,
        executor: Executor,
    ) -> Arc<AppState> {
        Arc::new(AppState {
            db: test_db.db().clone(),
            llm_db: None,
-            live_kit_client: Some(Arc::new(live_kit_test_server.create_api_client())),
+            livekit_client: Some(Arc::new(livekit_test_server.create_api_client())),
            blob_store_client: None,
            stripe_client: None,
            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,
@@ -520,9 +525,9 @@ impl TestServer {
                database_max_connections: 0,
                api_token: "".into(),
                invite_link_prefix: "".into(),
-                live_kit_server: None,
-                live_kit_key: None,
-                live_kit_secret: None,
+                livekit_server: None,
+                livekit_key: None,
+                livekit_secret: None,
                llm_database_url: None,
                llm_database_max_connections: None,
                llm_database_migrations_path: None,
@@ -540,10 +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,
@@ -572,7 +576,7 @@ impl Deref for TestServer {
 impl Drop for TestServer {
    fn drop(&mut self) {
        self.server.teardown();
-        self.test_live_kit_server.teardown().unwrap();
+        self.test_livekit_server.teardown().unwrap();
    }
 }

@@ -585,7 +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
@@ -474,11 +474,10 @@ impl CollabPanel {
                            project_id: project.id,
                            worktree_root_names: project.worktree_root_names.clone(),
                            host_user_id: participant.user.id,
-                            is_last: projects.peek().is_none()
-                                && participant.video_tracks.is_empty(),
+                            is_last: projects.peek().is_none() && !participant.has_video_tracks(),
                        });
                    }
-                    if !participant.video_tracks.is_empty() {
+                    if participant.has_video_tracks() {
                        self.entries.push(ListEntry::ParticipantScreen {
                            peer_id: Some(participant.peer_id),
                            is_last: true,
--- a/crates/context_server/src/types.rs
+++ b/crates/context_server/src/types.rs
@@ -167,11 +167,18 @@ pub struct InitializeResponse {
 #[derive(Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct ResourcesReadResponse {
-    pub contents: Vec<ResourceContents>,
+    pub contents: Vec<ResourceContentsType>,
    #[serde(rename = "_meta", skip_serializing_if = "Option::is_none")]
    pub meta: Option<HashMap<String, serde_json::Value>>,
 }

+#[derive(Debug, Deserialize)]
+#[serde(untagged)]
+pub enum ResourceContentsType {
+    Text(TextResourceContents),
+    Blob(BlobResourceContents),
+}
+
 #[derive(Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct ResourcesListResponse {
@@ -181,6 +188,7 @@ pub struct ResourcesListResponse {
    #[serde(rename = "_meta", skip_serializing_if = "Option::is_none")]
    pub meta: Option<HashMap<String, serde_json::Value>>,
 }
+
 #[derive(Debug, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct SamplingMessage {
@@ -188,6 +196,35 @@ pub struct SamplingMessage {
    pub content: MessageContent,
 }

+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateMessageRequest {
+    pub messages: Vec<SamplingMessage>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub model_preferences: Option<ModelPreferences>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub system_prompt: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub include_context: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub temperature: Option<f64>,
+    pub max_tokens: u32,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub stop_sequences: Option<Vec<String>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub metadata: Option<serde_json::Value>,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateMessageResult {
+    pub role: Role,
+    pub content: MessageContent,
+    pub model: String,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub stop_reason: Option<String>,
+}
+
 #[derive(Debug, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct PromptMessage {
@@ -206,11 +243,33 @@ pub enum Role {
 #[serde(tag = "type")]
 pub enum MessageContent {
    #[serde(rename = "text")]
-    Text { text: String },
+    Text {
+        text: String,
+        #[serde(skip_serializing_if = "Option::is_none")]
+        annotations: Option<MessageAnnotations>,
+    },
    #[serde(rename = "image")]
-    Image { data: String, mime_type: String },
+    Image {
+        data: String,
+        mime_type: String,
+        #[serde(skip_serializing_if = "Option::is_none")]
+        annotations: Option<MessageAnnotations>,
+    },
    #[serde(rename = "resource")]
-    Resource { resource: ResourceContents },
+    Resource {
+        resource: ResourceContents,
+        #[serde(skip_serializing_if = "Option::is_none")]
+        annotations: Option<MessageAnnotations>,
+    },
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct MessageAnnotations {
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub audience: Option<Vec<Role>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub priority: Option<f64>,
 }

 #[derive(Debug, Deserialize)]
@@ -460,6 +519,11 @@ pub enum ClientNotification {
    Initialized,
    Progress(ProgressParams),
    RootsListChanged,
+    Cancelled {
+        request_id: String,
+        #[serde(skip_serializing_if = "Option::is_none")]
+        reason: Option<String>,
+    },
 }

 #[derive(Debug, Serialize, Deserialize)]
@@ -532,6 +596,16 @@ pub struct ListToolsResponse {
    pub meta: Option<HashMap<String, serde_json::Value>>,
 }

+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ListResourceTemplatesResponse {
+    pub resource_templates: Vec<ResourceTemplate>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub next_cursor: Option<String>,
+    #[serde(rename = "_meta", skip_serializing_if = "Option::is_none")]
+    pub meta: Option<HashMap<String, serde_json::Value>>,
+}
+
 #[derive(Debug, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct ListRootsResponse {
--- 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_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 {
@@ -359,7 +324,7 @@ 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());

            // Confirming a completion inserts it and hides the context menu, without showing
            // the copilot suggestion afterwards.
@@ -368,7 +333,7 @@ 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");
        });
@@ -401,7 +366,7 @@ 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.copilot1\ntwo\nthree\n");
            assert_eq!(editor.text(cx), "one.\ntwo\nthree\n");
        });
@@ -434,12 +399,12 @@ 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());

            // 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");
        });
@@ -449,7 +414,7 @@ mod tests {
        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 +432,25 @@ 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 +458,25 @@ 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 +485,7 @@ 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 +510,19 @@ 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 +580,17 @@ 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 +622,11 @@ 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 +635,7 @@ 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 +644,7 @@ 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 +695,29 @@ 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 +778,7 @@ 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 +800,7 @@ 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 +809,7 @@ 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 +820,7 @@ 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"
@@ -916,7 +881,7 @@ mod tests {
        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.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 +908,7 @@ 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");
        });
@@ -974,7 +939,7 @@ mod tests {
                "On completion trigger input, the completions should be fetched and visible"
            );
            assert!(
-                !editor.has_active_inline_completion(cx),
+                !editor.has_active_inline_completion(),
                "On completion trigger input, copilot suggestion should be dismissed"
            );
            assert_eq!(editor.display_text(cx), "one\ntwo.\nthree\n");
@@ -998,7 +963,7 @@ mod tests {
            "/test",
            json!({
                ".env": "SECRET=something\n",
-                "README.md": "hello\n"
+                "README.md": "hello\nworld\nhow\nare\nyou\ntoday"
            }),
        )
        .await;
@@ -1030,7 +995,7 @@ 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 +1003,7 @@ 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 +1039,7 @@ 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/crates/diagnostics/src/diagnostics_tests.rs
+++ b/crates/diagnostics/src/diagnostics_tests.rs
@@ -151,7 +151,13 @@ async fn test_diagnostics(cx: &mut TestAppContext) {

    // Open the project diagnostics view while there are already diagnostics.
    let view = window.build_view(cx, |cx| {
-        ProjectDiagnosticsEditor::new_with_context(1, project.clone(), workspace.downgrade(), cx)
+        ProjectDiagnosticsEditor::new_with_context(
+            1,
+            true,
+            project.clone(),
+            workspace.downgrade(),
+            cx,
+        )
    });
    let editor = view.update(cx, |view, _| view.editor.clone());

@@ -459,7 +465,13 @@ async fn test_diagnostics_multiple_servers(cx: &mut TestAppContext) {
    let workspace = window.root(cx).unwrap();

    let view = window.build_view(cx, |cx| {
-        ProjectDiagnosticsEditor::new_with_context(1, project.clone(), workspace.downgrade(), cx)
+        ProjectDiagnosticsEditor::new_with_context(
+            1,
+            true,
+            project.clone(),
+            workspace.downgrade(),
+            cx,
+        )
    });
    let editor = view.update(cx, |view, _| view.editor.clone());

@@ -720,7 +732,13 @@ async fn test_random_diagnostics(cx: &mut TestAppContext, mut rng: StdRng) {
    let workspace = window.root(cx).unwrap();

    let mutated_view = window.build_view(cx, |cx| {
-        ProjectDiagnosticsEditor::new_with_context(1, project.clone(), workspace.downgrade(), cx)
+        ProjectDiagnosticsEditor::new_with_context(
+            1,
+            true,
+            project.clone(),
+            workspace.downgrade(),
+            cx,
+        )
    });

    workspace.update(cx, |workspace, cx| {
@@ -791,7 +809,7 @@ async fn test_random_diagnostics(cx: &mut TestAppContext, mut rng: StdRng) {

                updated_language_servers.insert(server_id);

-                project.update(cx, |project, cx| {
+                lsp_store.update(cx, |lsp_store, cx| {
                    log::info!("updating diagnostics. language server {server_id} path {path:?}");
                    randomly_update_diagnostics_for_path(
                        &fs,
@@ -800,10 +818,12 @@ async fn test_random_diagnostics(cx: &mut TestAppContext, mut rng: StdRng) {
                        &mut next_group_id,
                        &mut rng,
                    );
-                    project
+                    lsp_store
                        .update_diagnostic_entries(server_id, path, None, diagnostics.clone(), cx)
                        .unwrap()
                });
+                cx.executor()
+                    .advance_clock(DIAGNOSTICS_UPDATE_DEBOUNCE + Duration::from_millis(10));

                cx.run_until_parked();
            }
@@ -816,12 +836,33 @@ async fn test_random_diagnostics(cx: &mut TestAppContext, mut rng: StdRng) {

    log::info!("constructing reference diagnostics view");
    let reference_view = window.build_view(cx, |cx| {
-        ProjectDiagnosticsEditor::new_with_context(1, project.clone(), workspace.downgrade(), cx)
+        ProjectDiagnosticsEditor::new_with_context(
+            1,
+            true,
+            project.clone(),
+            workspace.downgrade(),
+            cx,
+        )
    });
+    cx.executor()
+        .advance_clock(DIAGNOSTICS_UPDATE_DEBOUNCE + Duration::from_millis(10));
    cx.run_until_parked();

    let mutated_excerpts = get_diagnostics_excerpts(&mutated_view, cx);
    let reference_excerpts = get_diagnostics_excerpts(&reference_view, cx);
+
+    for ((path, language_server_id), diagnostics) in current_diagnostics {
+        for diagnostic in diagnostics {
+            let found_excerpt = reference_excerpts.iter().any(|info| {
+                let row_range = info.range.context.start.row..info.range.context.end.row;
+                info.path == path.strip_prefix("/test").unwrap()
+                    && info.language_server == language_server_id
+                    && row_range.contains(&diagnostic.range.start.0.row)
+            });
+            assert!(found_excerpt, "diagnostic not found in reference view");
+        }
+    }
+
    assert_eq!(mutated_excerpts, reference_excerpts);
 }

--- a/crates/diagnostics/src/items.rs
+++ b/crates/diagnostics/src/items.rs
@@ -1,7 +1,9 @@
+use std::time::Duration;
+
 use editor::Editor;
 use gpui::{
-    EventEmitter, IntoElement, ParentElement, Render, Styled, Subscription, View, ViewContext,
-    WeakView,
+    EventEmitter, IntoElement, ParentElement, Render, Styled, Subscription, Task, View,
+    ViewContext, WeakView,
 };
 use language::Diagnostic;
 use ui::{h_flex, prelude::*, Button, ButtonLike, Color, Icon, IconName, Label, Tooltip};
@@ -15,6 +17,7 @@ pub struct DiagnosticIndicator {
    workspace: WeakView<Workspace>,
    current_diagnostic: Option<Diagnostic>,
    _observe_active_editor: Option<Subscription>,
+    diagnostics_update: Task<()>,
 }

 impl Render for DiagnosticIndicator {
@@ -126,6 +129,7 @@ impl DiagnosticIndicator {
            workspace: workspace.weak_handle(),
            current_diagnostic: None,
            _observe_active_editor: None,
+            diagnostics_update: Task::ready(()),
        }
    }

@@ -149,8 +153,17 @@ impl DiagnosticIndicator {
            .min_by_key(|entry| (entry.diagnostic.severity, entry.range.len()))
            .map(|entry| entry.diagnostic);
        if new_diagnostic != self.current_diagnostic {
-            self.current_diagnostic = new_diagnostic;
-            cx.notify();
+            self.diagnostics_update = cx.spawn(|diagnostics_indicator, mut cx| async move {
+                cx.background_executor()
+                    .timer(Duration::from_millis(50))
+                    .await;
+                diagnostics_indicator
+                    .update(&mut cx, |diagnostics_indicator, cx| {
+                        diagnostics_indicator.current_diagnostic = new_diagnostic;
+                        cx.notify();
+                    })
+                    .ok();
+            });
        }
    }
 }
--- a/crates/editor/Cargo.toml
+++ b/crates/editor/Cargo.toml
@@ -39,6 +39,7 @@ collections.workspace = true
 convert_case.workspace = true
 db.workspace = true
 emojis.workspace = true
+feature_flags.workspace = true
 file_icons.workspace = true
 futures.workspace = true
 fuzzy.workspace = true
@@ -84,6 +85,7 @@ unindent = { workspace = true, optional = true }
 ui.workspace = true
 url.workspace = true
 util.workspace = true
+uuid.workspace = true
 workspace.workspace = true

 [dev-dependencies]
@@ -97,6 +99,7 @@ project = { workspace = true, features = ["test-support"] }
 release_channel.workspace = true
 rand.workspace = true
 settings = { workspace = true, features = ["test-support"] }
+tempfile.workspace = true
 text = { workspace = true, features = ["test-support"] }
 theme = { workspace = true, features = ["test-support"] }
 tree-sitter-html.workspace = true
--- a/crates/editor/src/actions.rs
+++ b/crates/editor/src/actions.rs
@@ -105,6 +105,7 @@ pub struct MoveDownByLines {
    #[serde(default)]
    pub(super) lines: u32,
 }
+
 #[derive(PartialEq, Clone, Deserialize, Default)]
 pub struct SelectUpByLines {
    #[serde(default)]
@@ -166,6 +167,13 @@ pub struct SpawnNearestTask {
    pub reveal: task::RevealStrategy,
 }

+#[derive(Debug, PartialEq, Eq, Clone, Copy, Deserialize, Default)]
+pub enum UuidVersion {
+    #[default]
+    V4,
+    V7,
+}
+
 impl_actions!(
    editor,
    [
@@ -248,6 +256,7 @@ gpui::actions!(
        FindAllReferences,
        Fold,
        FoldAll,
+        FoldFunctionBodies,
        FoldRecursive,
        FoldSelectedRanges,
        ToggleFold,
@@ -270,6 +279,8 @@ gpui::actions!(
        HalfPageUp,
        Hover,
        Indent,
+        InsertUuidV4,
+        InsertUuidV7,
        JoinLines,
        KillRingCut,
        KillRingYank,
@@ -295,6 +306,7 @@ gpui::actions!(
        NewlineBelow,
        NextInlineCompletion,
        NextScreen,
+        OpenContextMenu,
        OpenExcerpts,
        OpenExcerptsSplit,
        OpenProposedChangesEditor,
@@ -303,6 +315,7 @@ gpui::actions!(
        OpenPermalinkToLine,
        OpenUrl,
        Outdent,
+        AutoIndent,
        PageDown,
        PageUp,
        Paste,
--- a/crates/editor/src/code_context_menus.rs
+++ b/crates/editor/src/code_context_menus.rs
@@ -0,0 +1,963 @@
+use std::{
+    cell::Cell,
+    cmp::{min, Reverse},
+    ops::Range,
+    sync::Arc,
+};
+
+use fuzzy::{StringMatch, StringMatchCandidate};
+use gpui::{
+    div, px, uniform_list, AnyElement, BackgroundExecutor, Div, FontWeight, ListSizingBehavior,
+    Model, MouseButton, Pixels, ScrollStrategy, SharedString, StrikethroughStyle, StyledText,
+    UniformListScrollHandle, ViewContext, WeakView,
+};
+use language::Buffer;
+use language::{CodeLabel, Documentation};
+use lsp::LanguageServerId;
+use multi_buffer::{Anchor, ExcerptId};
+use ordered_float::OrderedFloat;
+use parking_lot::{Mutex, RwLock};
+use project::{CodeAction, Completion, TaskSourceKind};
+use std::iter;
+use task::ResolvedTask;
+use ui::{
+    h_flex, ActiveTheme as _, Color, FluentBuilder as _, InteractiveElement as _, IntoElement,
+    Label, LabelCommon as _, LabelSize, ListItem, ParentElement as _, Popover, Selectable as _,
+    StatefulInteractiveElement as _, Styled, StyledExt as _,
+};
+use util::ResultExt as _;
+use workspace::Workspace;
+
+use crate::{
+    actions::{ConfirmCodeAction, ConfirmCompletion},
+    display_map::DisplayPoint,
+    render_parsed_markdown, split_words, styled_runs_for_code_label, CodeActionProvider,
+    CompletionId, CompletionProvider, DisplayRow, Editor, EditorStyle, ResolvedTasks,
+};
+
+pub enum CodeContextMenu {
+    Completions(CompletionsMenu),
+    CodeActions(CodeActionsMenu),
+}
+
+impl CodeContextMenu {
+    pub fn select_first(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) -> bool {
+        if self.visible() {
+            match self {
+                CodeContextMenu::Completions(menu) => menu.select_first(provider, cx),
+                CodeContextMenu::CodeActions(menu) => menu.select_first(cx),
+            }
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn select_prev(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) -> bool {
+        if self.visible() {
+            match self {
+                CodeContextMenu::Completions(menu) => menu.select_prev(provider, cx),
+                CodeContextMenu::CodeActions(menu) => menu.select_prev(cx),
+            }
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn select_next(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) -> bool {
+        if self.visible() {
+            match self {
+                CodeContextMenu::Completions(menu) => menu.select_next(provider, cx),
+                CodeContextMenu::CodeActions(menu) => menu.select_next(cx),
+            }
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn select_last(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) -> bool {
+        if self.visible() {
+            match self {
+                CodeContextMenu::Completions(menu) => menu.select_last(provider, cx),
+                CodeContextMenu::CodeActions(menu) => menu.select_last(cx),
+            }
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn visible(&self) -> bool {
+        match self {
+            CodeContextMenu::Completions(menu) => menu.visible(),
+            CodeContextMenu::CodeActions(menu) => menu.visible(),
+        }
+    }
+
+    pub fn render(
+        &self,
+        cursor_position: DisplayPoint,
+        style: &EditorStyle,
+        max_height: Pixels,
+        workspace: Option<WeakView<Workspace>>,
+        cx: &mut ViewContext<Editor>,
+    ) -> (ContextMenuOrigin, AnyElement) {
+        match self {
+            CodeContextMenu::Completions(menu) => (
+                ContextMenuOrigin::EditorPoint(cursor_position),
+                menu.render(style, max_height, workspace, cx),
+            ),
+            CodeContextMenu::CodeActions(menu) => {
+                menu.render(cursor_position, style, max_height, cx)
+            }
+        }
+    }
+}
+
+pub enum ContextMenuOrigin {
+    EditorPoint(DisplayPoint),
+    GutterIndicator(DisplayRow),
+}
+
+#[derive(Clone, Debug)]
+pub struct CompletionsMenu {
+    pub id: CompletionId,
+    sort_completions: bool,
+    pub initial_position: Anchor,
+    pub buffer: Model<Buffer>,
+    pub completions: Arc<RwLock<Box<[Completion]>>>,
+    match_candidates: Arc<[StringMatchCandidate]>,
+    pub matches: Arc<[StringMatch]>,
+    pub selected_item: usize,
+    scroll_handle: UniformListScrollHandle,
+    resolve_completions: bool,
+    pub aside_was_displayed: Cell<bool>,
+    show_completion_documentation: bool,
+    last_rendered_range: Arc<Mutex<Option<Range<usize>>>>,
+}
+
+impl CompletionsMenu {
+    pub fn new(
+        id: CompletionId,
+        sort_completions: bool,
+        show_completion_documentation: bool,
+        initial_position: Anchor,
+        buffer: Model<Buffer>,
+        completions: Box<[Completion]>,
+        aside_was_displayed: bool,
+    ) -> Self {
+        let match_candidates = completions
+            .iter()
+            .enumerate()
+            .map(|(id, completion)| {
+                StringMatchCandidate::new(
+                    id,
+                    completion.label.text[completion.label.filter_range.clone()].into(),
+                )
+            })
+            .collect();
+
+        Self {
+            id,
+            sort_completions,
+            initial_position,
+            buffer,
+            completions: Arc::new(RwLock::new(completions)),
+            match_candidates,
+            matches: Vec::new().into(),
+            selected_item: 0,
+            scroll_handle: UniformListScrollHandle::new(),
+            resolve_completions: true,
+            aside_was_displayed: Cell::new(aside_was_displayed),
+            show_completion_documentation,
+            last_rendered_range: Arc::new(Mutex::new(None)),
+        }
+    }
+
+    pub fn new_snippet_choices(
+        id: CompletionId,
+        sort_completions: bool,
+        choices: &Vec<String>,
+        selection: Range<Anchor>,
+        buffer: Model<Buffer>,
+    ) -> Self {
+        let completions = choices
+            .iter()
+            .map(|choice| Completion {
+                old_range: selection.start.text_anchor..selection.end.text_anchor,
+                new_text: choice.to_string(),
+                label: CodeLabel {
+                    text: choice.to_string(),
+                    runs: Default::default(),
+                    filter_range: Default::default(),
+                },
+                server_id: LanguageServerId(usize::MAX),
+                documentation: None,
+                lsp_completion: Default::default(),
+                confirm: None,
+            })
+            .collect();
+
+        let match_candidates = choices
+            .iter()
+            .enumerate()
+            .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
+            .collect();
+        let matches = choices
+            .iter()
+            .enumerate()
+            .map(|(id, completion)| StringMatch {
+                candidate_id: id,
+                score: 1.,
+                positions: vec![],
+                string: completion.clone(),
+            })
+            .collect();
+        Self {
+            id,
+            sort_completions,
+            initial_position: selection.start,
+            buffer,
+            completions: Arc::new(RwLock::new(completions)),
+            match_candidates,
+            matches,
+            selected_item: 0,
+            scroll_handle: UniformListScrollHandle::new(),
+            resolve_completions: false,
+            aside_was_displayed: Cell::new(false),
+            show_completion_documentation: false,
+            last_rendered_range: Arc::new(Mutex::new(None)),
+        }
+    }
+
+    fn select_first(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        self.update_selection_index(0, provider, cx);
+    }
+
+    fn select_prev(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        self.update_selection_index(self.prev_match_index(), provider, cx);
+    }
+
+    fn select_next(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        self.update_selection_index(self.next_match_index(), provider, cx);
+    }
+
+    fn select_last(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        self.update_selection_index(self.matches.len() - 1, provider, cx);
+    }
+
+    fn update_selection_index(
+        &mut self,
+        match_index: usize,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        if self.selected_item != match_index {
+            self.selected_item = match_index;
+            self.scroll_handle
+                .scroll_to_item(self.selected_item, ScrollStrategy::Top);
+            self.resolve_visible_completions(provider, cx);
+            cx.notify();
+        }
+    }
+
+    fn prev_match_index(&self) -> usize {
+        if self.selected_item > 0 {
+            self.selected_item - 1
+        } else {
+            self.matches.len() - 1
+        }
+    }
+
+    fn next_match_index(&self) -> usize {
+        if self.selected_item + 1 < self.matches.len() {
+            self.selected_item + 1
+        } else {
+            0
+        }
+    }
+
+    pub fn resolve_visible_completions(
+        &mut self,
+        provider: Option<&dyn CompletionProvider>,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        if !self.resolve_completions {
+            return;
+        }
+        let Some(provider) = provider else {
+            return;
+        };
+
+        // Attempt to resolve completions for every item that will be displayed. This matters
+        // because single line documentation may be displayed inline with the completion.
+        //
+        // When navigating to the very beginning or end of completions, `last_rendered_range` may
+        // have no overlap with the completions that will be displayed, so instead use a range based
+        // on the last rendered count.
+        const APPROXIMATE_VISIBLE_COUNT: usize = 12;
+        let last_rendered_range = self.last_rendered_range.lock().clone();
+        let visible_count = last_rendered_range
+            .clone()
+            .map_or(APPROXIMATE_VISIBLE_COUNT, |range| range.count());
+        let matches_range = if self.selected_item == 0 {
+            0..min(visible_count, self.matches.len())
+        } else if self.selected_item == self.matches.len() - 1 {
+            self.matches.len().saturating_sub(visible_count)..self.matches.len()
+        } else {
+            last_rendered_range.unwrap_or_else(|| self.selected_item..self.selected_item + 1)
+        };
+
+        // Expand the range to resolve more completions than are predicted to be visible, to reduce
+        // jank on navigation.
+        const EXTRA_TO_RESOLVE: usize = 4;
+        let matches_indices = util::iterate_expanded_and_wrapped_usize_range(
+            matches_range.clone(),
+            EXTRA_TO_RESOLVE,
+            EXTRA_TO_RESOLVE,
+            self.matches.len(),
+        );
+
+        // Avoid work by sometimes filtering out completions that already have documentation.
+        // This filtering doesn't happen if the completions are currently being updated.
+        let candidate_ids = matches_indices.map(|i| self.matches[i].candidate_id);
+        let candidate_ids = match self.completions.try_read() {
+            None => candidate_ids.collect::<Vec<usize>>(),
+            Some(completions) => candidate_ids
+                .filter(|i| completions[*i].documentation.is_none())
+                .collect::<Vec<usize>>(),
+        };
+
+        // Current selection is always resolved even if it already has documentation, to handle
+        // out-of-spec language servers that return more results later.
+        let selected_candidate_id = self.matches[self.selected_item].candidate_id;
+        let candidate_ids = iter::once(selected_candidate_id)
+            .chain(
+                candidate_ids
+                    .into_iter()
+                    .filter(|id| *id != selected_candidate_id),
+            )
+            .collect::<Vec<usize>>();
+
+        let resolve_task = provider.resolve_completions(
+            self.buffer.clone(),
+            candidate_ids,
+            self.completions.clone(),
+            cx,
+        );
+
+        cx.spawn(move |editor, mut cx| async move {
+            if let Some(true) = resolve_task.await.log_err() {
+                editor.update(&mut cx, |_, cx| cx.notify()).ok();
+            }
+        })
+        .detach();
+    }
+
+    fn visible(&self) -> bool {
+        !self.matches.is_empty()
+    }
+
+    fn render(
+        &self,
+        style: &EditorStyle,
+        max_height: Pixels,
+        workspace: Option<WeakView<Workspace>>,
+        cx: &mut ViewContext<Editor>,
+    ) -> AnyElement {
+        let show_completion_documentation = self.show_completion_documentation;
+        let widest_completion_ix = self
+            .matches
+            .iter()
+            .enumerate()
+            .max_by_key(|(_, mat)| {
+                let completions = self.completions.read();
+                let completion = &completions[mat.candidate_id];
+                let documentation = &completion.documentation;
+
+                let mut len = completion.label.text.chars().count();
+                if let Some(Documentation::SingleLine(text)) = documentation {
+                    if show_completion_documentation {
+                        len += text.chars().count();
+                    }
+                }
+
+                len
+            })
+            .map(|(ix, _)| ix);
+
+        let completions = self.completions.clone();
+        let matches = self.matches.clone();
+        let selected_item = self.selected_item;
+        let style = style.clone();
+
+        let multiline_docs = if show_completion_documentation {
+            let mat = &self.matches[selected_item];
+            match &self.completions.read()[mat.candidate_id].documentation {
+                Some(Documentation::MultiLinePlainText(text)) => {
+                    Some(div().child(SharedString::from(text.clone())))
+                }
+                Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
+                    Some(div().child(render_parsed_markdown(
+                        "completions_markdown",
+                        parsed,
+                        &style,
+                        workspace,
+                        cx,
+                    )))
+                }
+                Some(Documentation::Undocumented) if self.aside_was_displayed.get() => {
+                    Some(div().child("No documentation"))
+                }
+                _ => None,
+            }
+        } else {
+            None
+        };
+
+        let aside_contents = if let Some(multiline_docs) = multiline_docs {
+            Some(multiline_docs)
+        } else if self.aside_was_displayed.get() {
+            Some(div().child("Fetching documentation..."))
+        } else {
+            None
+        };
+        self.aside_was_displayed.set(aside_contents.is_some());
+
+        let aside_contents = aside_contents.map(|div| {
+            div.id("multiline_docs")
+                .max_h(max_height)
+                .flex_1()
+                .px_1p5()
+                .py_1()
+                .min_w(px(260.))
+                .max_w(px(640.))
+                .w(px(500.))
+                .overflow_y_scroll()
+                .occlude()
+        });
+
+        let last_rendered_range = self.last_rendered_range.clone();
+
+        let list = uniform_list(
+            cx.view().clone(),
+            "completions",
+            matches.len(),
+            move |_editor, range, cx| {
+                last_rendered_range.lock().replace(range.clone());
+                let start_ix = range.start;
+                let completions_guard = completions.read();
+
+                matches[range]
+                    .iter()
+                    .enumerate()
+                    .map(|(ix, mat)| {
+                        let item_ix = start_ix + ix;
+                        let candidate_id = mat.candidate_id;
+                        let completion = &completions_guard[candidate_id];
+
+                        let documentation = if show_completion_documentation {
+                            &completion.documentation
+                        } else {
+                            &None
+                        };
+
+                        let highlights = gpui::combine_highlights(
+                            mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
+                            styled_runs_for_code_label(&completion.label, &style.syntax).map(
+                                |(range, mut highlight)| {
+                                    // Ignore font weight for syntax highlighting, as we'll use it
+                                    // for fuzzy matches.
+                                    highlight.font_weight = None;
+
+                                    if completion.lsp_completion.deprecated.unwrap_or(false) {
+                                        highlight.strikethrough = Some(StrikethroughStyle {
+                                            thickness: 1.0.into(),
+                                            ..Default::default()
+                                        });
+                                        highlight.color = Some(cx.theme().colors().text_muted);
+                                    }
+
+                                    (range, highlight)
+                                },
+                            ),
+                        );
+                        let completion_label = StyledText::new(completion.label.text.clone())
+                            .with_highlights(&style.text, highlights);
+                        let documentation_label =
+                            if let Some(Documentation::SingleLine(text)) = documentation {
+                                if text.trim().is_empty() {
+                                    None
+                                } else {
+                                    Some(
+                                        Label::new(text.clone())
+                                            .ml_4()
+                                            .size(LabelSize::Small)
+                                            .color(Color::Muted),
+                                    )
+                                }
+                            } else {
+                                None
+                            };
+
+                        let color_swatch = completion
+                            .color()
+                            .map(|color| div().size_4().bg(color).rounded_sm());
+
+                        div().min_w(px(220.)).max_w(px(540.)).child(
+                            ListItem::new(mat.candidate_id)
+                                .inset(true)
+                                .selected(item_ix == selected_item)
+                                .on_click(cx.listener(move |editor, _event, cx| {
+                                    cx.stop_propagation();
+                                    if let Some(task) = editor.confirm_completion(
+                                        &ConfirmCompletion {
+                                            item_ix: Some(item_ix),
+                                        },
+                                        cx,
+                                    ) {
+                                        task.detach_and_log_err(cx)
+                                    }
+                                }))
+                                .start_slot::<Div>(color_swatch)
+                                .child(h_flex().overflow_hidden().child(completion_label))
+                                .end_slot::<Label>(documentation_label),
+                        )
+                    })
+                    .collect()
+            },
+        )
+        .occlude()
+        .max_h(max_height)
+        .track_scroll(self.scroll_handle.clone())
+        .with_width_from_item(widest_completion_ix)
+        .with_sizing_behavior(ListSizingBehavior::Infer);
+
+        Popover::new()
+            .child(list)
+            .when_some(aside_contents, |popover, aside_contents| {
+                popover.aside(aside_contents)
+            })
+            .into_any_element()
+    }
+
+    pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
+        let mut matches = if let Some(query) = query {
+            fuzzy::match_strings(
+                &self.match_candidates,
+                query,
+                query.chars().any(|c| c.is_uppercase()),
+                100,
+                &Default::default(),
+                executor,
+            )
+            .await
+        } else {
+            self.match_candidates
+                .iter()
+                .enumerate()
+                .map(|(candidate_id, candidate)| StringMatch {
+                    candidate_id,
+                    score: Default::default(),
+                    positions: Default::default(),
+                    string: candidate.string.clone(),
+                })
+                .collect()
+        };
+
+        // Remove all candidates where the query's start does not match the start of any word in the candidate
+        if let Some(query) = query {
+            if let Some(query_start) = query.chars().next() {
+                matches.retain(|string_match| {
+                    split_words(&string_match.string).any(|word| {
+                        // Check that the first codepoint of the word as lowercase matches the first
+                        // codepoint of the query as lowercase
+                        word.chars()
+                            .flat_map(|codepoint| codepoint.to_lowercase())
+                            .zip(query_start.to_lowercase())
+                            .all(|(word_cp, query_cp)| word_cp == query_cp)
+                    })
+                });
+            }
+        }
+
+        let completions = self.completions.read();
+        if self.sort_completions {
+            matches.sort_unstable_by_key(|mat| {
+                // We do want to strike a balance here between what the language server tells us
+                // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
+                // `Creat` and there is a local variable called `CreateComponent`).
+                // So what we do is: we bucket all matches into two buckets
+                // - Strong matches
+                // - Weak matches
+                // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
+                // and the Weak matches are the rest.
+                //
+                // For the strong matches, we sort by our fuzzy-finder score first and for the weak
+                // matches, we prefer language-server sort_text first.
+                //
+                // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
+                // Rest of the matches(weak) can be sorted as language-server expects.
+
+                #[derive(PartialEq, Eq, PartialOrd, Ord)]
+                enum MatchScore<'a> {
+                    Strong {
+                        score: Reverse<OrderedFloat<f64>>,
+                        sort_text: Option<&'a str>,
+                        sort_key: (usize, &'a str),
+                    },
+                    Weak {
+                        sort_text: Option<&'a str>,
+                        score: Reverse<OrderedFloat<f64>>,
+                        sort_key: (usize, &'a str),
+                    },
+                }
+
+                let completion = &completions[mat.candidate_id];
+                let sort_key = completion.sort_key();
+                let sort_text = completion.lsp_completion.sort_text.as_deref();
+                let score = Reverse(OrderedFloat(mat.score));
+
+                if mat.score >= 0.2 {
+                    MatchScore::Strong {
+                        score,
+                        sort_text,
+                        sort_key,
+                    }
+                } else {
+                    MatchScore::Weak {
+                        sort_text,
+                        score,
+                        sort_key,
+                    }
+                }
+            });
+        }
+
+        for mat in &mut matches {
+            let completion = &completions[mat.candidate_id];
+            mat.string.clone_from(&completion.label.text);
+            for position in &mut mat.positions {
+                *position += completion.label.filter_range.start;
+            }
+        }
+        drop(completions);
+
+        self.matches = matches.into();
+        self.selected_item = 0;
+    }
+}
+
+#[derive(Clone)]
+pub struct AvailableCodeAction {
+    pub excerpt_id: ExcerptId,
+    pub action: CodeAction,
+    pub provider: Arc<dyn CodeActionProvider>,
+}
+
+#[derive(Clone)]
+pub struct CodeActionContents {
+    pub tasks: Option<Arc<ResolvedTasks>>,
+    pub actions: Option<Arc<[AvailableCodeAction]>>,
+}
+
+impl CodeActionContents {
+    fn len(&self) -> usize {
+        match (&self.tasks, &self.actions) {
+            (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
+            (Some(tasks), None) => tasks.templates.len(),
+            (None, Some(actions)) => actions.len(),
+            (None, None) => 0,
+        }
+    }
+
+    fn is_empty(&self) -> bool {
+        match (&self.tasks, &self.actions) {
+            (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
+            (Some(tasks), None) => tasks.templates.is_empty(),
+            (None, Some(actions)) => actions.is_empty(),
+            (None, None) => true,
+        }
+    }
+
+    fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
+        self.tasks
+            .iter()
+            .flat_map(|tasks| {
+                tasks
+                    .templates
+                    .iter()
+                    .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
+            })
+            .chain(self.actions.iter().flat_map(|actions| {
+                actions.iter().map(|available| CodeActionsItem::CodeAction {
+                    excerpt_id: available.excerpt_id,
+                    action: available.action.clone(),
+                    provider: available.provider.clone(),
+                })
+            }))
+    }
+
+    pub fn get(&self, index: usize) -> Option<CodeActionsItem> {
+        match (&self.tasks, &self.actions) {
+            (Some(tasks), Some(actions)) => {
+                if index < tasks.templates.len() {
+                    tasks
+                        .templates
+                        .get(index)
+                        .cloned()
+                        .map(|(kind, task)| CodeActionsItem::Task(kind, task))
+                } else {
+                    actions.get(index - tasks.templates.len()).map(|available| {
+                        CodeActionsItem::CodeAction {
+                            excerpt_id: available.excerpt_id,
+                            action: available.action.clone(),
+                            provider: available.provider.clone(),
+                        }
+                    })
+                }
+            }
+            (Some(tasks), None) => tasks
+                .templates
+                .get(index)
+                .cloned()
+                .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
+            (None, Some(actions)) => {
+                actions
+                    .get(index)
+                    .map(|available| CodeActionsItem::CodeAction {
+                        excerpt_id: available.excerpt_id,
+                        action: available.action.clone(),
+                        provider: available.provider.clone(),
+                    })
+            }
+            (None, None) => None,
+        }
+    }
+}
+
+#[allow(clippy::large_enum_variant)]
+#[derive(Clone)]
+pub enum CodeActionsItem {
+    Task(TaskSourceKind, ResolvedTask),
+    CodeAction {
+        excerpt_id: ExcerptId,
+        action: CodeAction,
+        provider: Arc<dyn CodeActionProvider>,
+    },
+}
+
+impl CodeActionsItem {
+    fn as_task(&self) -> Option<&ResolvedTask> {
+        let Self::Task(_, task) = self else {
+            return None;
+        };
+        Some(task)
+    }
+
+    fn as_code_action(&self) -> Option<&CodeAction> {
+        let Self::CodeAction { action, .. } = self else {
+            return None;
+        };
+        Some(action)
+    }
+
+    pub fn label(&self) -> String {
+        match self {
+            Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
+            Self::Task(_, task) => task.resolved_label.clone(),
+        }
+    }
+}
+
+pub struct CodeActionsMenu {
+    pub actions: CodeActionContents,
+    pub buffer: Model<Buffer>,
+    pub selected_item: usize,
+    pub scroll_handle: UniformListScrollHandle,
+    pub deployed_from_indicator: Option<DisplayRow>,
+}
+
+impl CodeActionsMenu {
+    fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
+        self.selected_item = 0;
+        self.scroll_handle
+            .scroll_to_item(self.selected_item, ScrollStrategy::Top);
+        cx.notify()
+    }
+
+    fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
+        if self.selected_item > 0 {
+            self.selected_item -= 1;
+        } else {
+            self.selected_item = self.actions.len() - 1;
+        }
+        self.scroll_handle
+            .scroll_to_item(self.selected_item, ScrollStrategy::Top);
+        cx.notify();
+    }
+
+    fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
+        if self.selected_item + 1 < self.actions.len() {
+            self.selected_item += 1;
+        } else {
+            self.selected_item = 0;
+        }
+        self.scroll_handle
+            .scroll_to_item(self.selected_item, ScrollStrategy::Top);
+        cx.notify();
+    }
+
+    fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
+        self.selected_item = self.actions.len() - 1;
+        self.scroll_handle
+            .scroll_to_item(self.selected_item, ScrollStrategy::Top);
+        cx.notify()
+    }
+
+    fn visible(&self) -> bool {
+        !self.actions.is_empty()
+    }
+
+    fn render(
+        &self,
+        cursor_position: DisplayPoint,
+        _style: &EditorStyle,
+        max_height: Pixels,
+        cx: &mut ViewContext<Editor>,
+    ) -> (ContextMenuOrigin, AnyElement) {
+        let actions = self.actions.clone();
+        let selected_item = self.selected_item;
+        let element = uniform_list(
+            cx.view().clone(),
+            "code_actions_menu",
+            self.actions.len(),
+            move |_this, range, cx| {
+                actions
+                    .iter()
+                    .skip(range.start)
+                    .take(range.end - range.start)
+                    .enumerate()
+                    .map(|(ix, action)| {
+                        let item_ix = range.start + ix;
+                        let selected = selected_item == item_ix;
+                        let colors = cx.theme().colors();
+                        div()
+                            .px_1()
+                            .rounded_md()
+                            .text_color(colors.text)
+                            .when(selected, |style| {
+                                style
+                                    .bg(colors.element_active)
+                                    .text_color(colors.text_accent)
+                            })
+                            .hover(|style| {
+                                style
+                                    .bg(colors.element_hover)
+                                    .text_color(colors.text_accent)
+                            })
+                            .whitespace_nowrap()
+                            .when_some(action.as_code_action(), |this, action| {
+                                this.on_mouse_down(
+                                    MouseButton::Left,
+                                    cx.listener(move |editor, _, cx| {
+                                        cx.stop_propagation();
+                                        if let Some(task) = editor.confirm_code_action(
+                                            &ConfirmCodeAction {
+                                                item_ix: Some(item_ix),
+                                            },
+                                            cx,
+                                        ) {
+                                            task.detach_and_log_err(cx)
+                                        }
+                                    }),
+                                )
+                                // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
+                                .child(SharedString::from(
+                                    action.lsp_action.title.replace("\n", ""),
+                                ))
+                            })
+                            .when_some(action.as_task(), |this, task| {
+                                this.on_mouse_down(
+                                    MouseButton::Left,
+                                    cx.listener(move |editor, _, cx| {
+                                        cx.stop_propagation();
+                                        if let Some(task) = editor.confirm_code_action(
+                                            &ConfirmCodeAction {
+                                                item_ix: Some(item_ix),
+                                            },
+                                            cx,
+                                        ) {
+                                            task.detach_and_log_err(cx)
+                                        }
+                                    }),
+                                )
+                                .child(SharedString::from(task.resolved_label.replace("\n", "")))
+                            })
+                    })
+                    .collect()
+            },
+        )
+        .elevation_1(cx)
+        .p_1()
+        .max_h(max_height)
+        .occlude()
+        .track_scroll(self.scroll_handle.clone())
+        .with_width_from_item(
+            self.actions
+                .iter()
+                .enumerate()
+                .max_by_key(|(_, action)| match action {
+                    CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
+                    CodeActionsItem::CodeAction { action, .. } => {
+                        action.lsp_action.title.chars().count()
+                    }
+                })
+                .map(|(ix, _)| ix),
+        )
+        .with_sizing_behavior(ListSizingBehavior::Infer)
+        .into_any_element();
+
+        let cursor_position = if let Some(row) = self.deployed_from_indicator {
+            ContextMenuOrigin::GutterIndicator(row)
+        } else {
+            ContextMenuOrigin::EditorPoint(cursor_position)
+        };
+
+        (cursor_position, element)
+    }
+}
--- a/crates/editor/src/debounced_delay.rs
+++ b/crates/editor/src/debounced_delay.rs
@@ -1,46 +0,0 @@
-use std::time::Duration;
-
-use futures::{channel::oneshot, FutureExt};
-use gpui::{Task, ViewContext};
-
-use crate::Editor;
-
-#[derive(Debug)]
-pub struct DebouncedDelay {
-    task: Option<Task<()>>,
-    cancel_channel: Option<oneshot::Sender<()>>,
-}
-
-impl DebouncedDelay {
-    pub fn new() -> DebouncedDelay {
-        DebouncedDelay {
-            task: None,
-            cancel_channel: None,
-        }
-    }
-
-    pub fn fire_new<F>(&mut self, delay: Duration, cx: &mut ViewContext<Editor>, func: F)
-    where
-        F: 'static + Send + FnOnce(&mut Editor, &mut ViewContext<Editor>) -> Task<()>,
-    {
-        if let Some(channel) = self.cancel_channel.take() {
-            _ = channel.send(());
-        }
-
-        let (sender, mut receiver) = oneshot::channel::<()>();
-        self.cancel_channel = Some(sender);
-
-        drop(self.task.take());
-        self.task = Some(cx.spawn(move |model, mut cx| async move {
-            let mut timer = cx.background_executor().timer(delay).fuse();
-            futures::select_biased! {
-                _ = receiver => return,
-                _ = timer => {}
-            }
-
-            if let Ok(task) = model.update(&mut cx, |project, cx| (func)(project, cx)) {
-                task.await;
-            }
-        }));
-    }
-}
--- a/crates/editor/src/display_map.rs
+++ b/crates/editor/src/display_map.rs
@@ -82,7 +82,7 @@ pub trait ToDisplayPoint {
    fn to_display_point(&self, map: &DisplaySnapshot) -> DisplayPoint;
 }

-type TextHighlights = TreeMap<Option<TypeId>, Arc<(HighlightStyle, Vec<Range<Anchor>>)>>;
+type TextHighlights = TreeMap<TypeId, Arc<(HighlightStyle, Vec<Range<Anchor>>)>>;
 type InlayHighlights = TreeMap<TypeId, TreeMap<InlayId, (HighlightStyle, InlayHighlight)>>;

 /// Decides how text in a [`MultiBuffer`] should be displayed in a buffer, handling inlay hints,
@@ -434,7 +434,7 @@ impl DisplayMap {
        style: HighlightStyle,
    ) {
        self.text_highlights
-            .insert(Some(type_id), Arc::new((style, ranges)));
+            .insert(type_id, Arc::new((style, ranges)));
    }

    pub(crate) fn highlight_inlays(
@@ -457,11 +457,11 @@ impl DisplayMap {
    }

    pub fn text_highlights(&self, type_id: TypeId) -> Option<(HighlightStyle, &[Range<Anchor>])> {
-        let highlights = self.text_highlights.get(&Some(type_id))?;
+        let highlights = self.text_highlights.get(&type_id)?;
        Some((highlights.0, &highlights.1))
    }
    pub fn clear_highlights(&mut self, type_id: TypeId) -> bool {
-        let mut cleared = self.text_highlights.remove(&Some(type_id)).is_some();
+        let mut cleared = self.text_highlights.remove(&type_id).is_some();
        cleared |= self.inlay_highlights.remove(&type_id).is_some();
        cleared
    }
@@ -684,8 +684,8 @@ impl DisplaySnapshot {
            .map(|row| row.map(MultiBufferRow))
    }

-    pub fn max_buffer_row(&self) -> MultiBufferRow {
-        self.buffer_snapshot.max_buffer_row()
+    pub fn widest_line_number(&self) -> u32 {
+        self.buffer_snapshot.widest_line_number()
    }

    pub fn prev_line_boundary(&self, mut point: MultiBufferPoint) -> (Point, DisplayPoint) {
@@ -726,11 +726,10 @@ impl DisplaySnapshot {

    // used by line_mode selections and tries to match vim behavior
    pub fn expand_to_line(&self, range: Range<Point>) -> Range<Point> {
+        let max_row = self.buffer_snapshot.max_row().0;
        let new_start = if range.start.row == 0 {
            MultiBufferPoint::new(0, 0)
-        } else if range.start.row == self.max_buffer_row().0
-            || (range.end.column > 0 && range.end.row == self.max_buffer_row().0)
-        {
+        } else if range.start.row == max_row || (range.end.column > 0 && range.end.row == max_row) {
            MultiBufferPoint::new(
                range.start.row - 1,
                self.buffer_snapshot
@@ -742,7 +741,7 @@ impl DisplaySnapshot {

        let new_end = if range.end.column == 0 {
            range.end
-        } else if range.end.row < self.max_buffer_row().0 {
+        } else if range.end.row < max_row {
            self.buffer_snapshot
                .clip_point(MultiBufferPoint::new(range.end.row + 1, 0), Bias::Left)
        } else {
@@ -1126,8 +1125,14 @@ impl DisplaySnapshot {
        DisplayRow(self.block_snapshot.longest_row())
    }

+    pub fn longest_row_in_range(&self, range: Range<DisplayRow>) -> DisplayRow {
+        let block_range = BlockRow(range.start.0)..BlockRow(range.end.0);
+        let longest_row = self.block_snapshot.longest_row_in_range(block_range);
+        DisplayRow(longest_row.0)
+    }
+
    pub fn starts_indent(&self, buffer_row: MultiBufferRow) -> bool {
-        let max_row = self.buffer_snapshot.max_buffer_row();
+        let max_row = self.buffer_snapshot.max_row();
        if buffer_row >= max_row {
            return false;
        }
@@ -1240,7 +1245,7 @@ impl DisplaySnapshot {
        &self,
    ) -> Option<Arc<(HighlightStyle, Vec<Range<Anchor>>)>> {
        let type_id = TypeId::of::<Tag>();
-        self.text_highlights.get(&Some(type_id)).cloned()
+        self.text_highlights.get(&type_id).cloned()
    }

    #[allow(unused)]
--- a/crates/editor/src/display_map/block_map.rs
+++ b/crates/editor/src/display_map/block_map.rs
@@ -1339,6 +1339,57 @@ impl BlockSnapshot {
        self.transforms.summary().longest_row
    }

+    pub fn longest_row_in_range(&self, range: Range<BlockRow>) -> BlockRow {
+        let mut cursor = self.transforms.cursor::<(BlockRow, WrapRow)>(&());
+        cursor.seek(&range.start, Bias::Right, &());
+
+        let mut longest_row = range.start;
+        let mut longest_row_chars = 0;
+        if let Some(transform) = cursor.item() {
+            if transform.block.is_none() {
+                let (output_start, input_start) = cursor.start();
+                let overshoot = range.start.0 - output_start.0;
+                let wrap_start_row = input_start.0 + overshoot;
+                let wrap_end_row = cmp::min(
+                    input_start.0 + (range.end.0 - output_start.0),
+                    cursor.end(&()).1 .0,
+                );
+                let summary = self
+                    .wrap_snapshot
+                    .text_summary_for_range(wrap_start_row..wrap_end_row);
+                longest_row = BlockRow(range.start.0 + summary.longest_row);
+                longest_row_chars = summary.longest_row_chars;
+            }
+            cursor.next(&());
+        }
+
+        let cursor_start_row = cursor.start().0;
+        if range.end > cursor_start_row {
+            let summary = cursor.summary::<_, TransformSummary>(&range.end, Bias::Right, &());
+            if summary.longest_row_chars > longest_row_chars {
+                longest_row = BlockRow(cursor_start_row.0 + summary.longest_row);
+                longest_row_chars = summary.longest_row_chars;
+            }
+
+            if let Some(transform) = cursor.item() {
+                if transform.block.is_none() {
+                    let (output_start, input_start) = cursor.start();
+                    let overshoot = range.end.0 - output_start.0;
+                    let wrap_start_row = input_start.0;
+                    let wrap_end_row = input_start.0 + overshoot;
+                    let summary = self
+                        .wrap_snapshot
+                        .text_summary_for_range(wrap_start_row..wrap_end_row);
+                    if summary.longest_row_chars > longest_row_chars {
+                        longest_row = BlockRow(output_start.0 + summary.longest_row);
+                    }
+                }
+            }
+        }
+
+        longest_row
+    }
+
    pub(super) fn line_len(&self, row: BlockRow) -> u32 {
        let mut cursor = self.transforms.cursor::<(BlockRow, WrapRow)>(&());
        cursor.seek(&BlockRow(row.0), Bias::Right, &());
@@ -2705,6 +2756,40 @@ mod tests {
                longest_line_len,
            );

+            for _ in 0..10 {
+                let end_row = rng.gen_range(1..=expected_lines.len());
+                let start_row = rng.gen_range(0..end_row);
+
+                let mut expected_longest_rows_in_range = vec![];
+                let mut longest_line_len_in_range = 0;
+
+                let mut row = start_row as u32;
+                for line in &expected_lines[start_row..end_row] {
+                    let line_char_count = line.chars().count() as isize;
+                    match line_char_count.cmp(&longest_line_len_in_range) {
+                        Ordering::Less => {}
+                        Ordering::Equal => expected_longest_rows_in_range.push(row),
+                        Ordering::Greater => {
+                            longest_line_len_in_range = line_char_count;
+                            expected_longest_rows_in_range.clear();
+                            expected_longest_rows_in_range.push(row);
+                        }
+                    }
+                    row += 1;
+                }
+
+                let longest_row_in_range = blocks_snapshot
+                    .longest_row_in_range(BlockRow(start_row as u32)..BlockRow(end_row as u32));
+                assert!(
+                    expected_longest_rows_in_range.contains(&longest_row_in_range.0),
+                    "incorrect longest row {} in range {:?}. expected {:?} with length {}",
+                    longest_row,
+                    start_row..end_row,
+                    expected_longest_rows_in_range,
+                    longest_line_len_in_range,
+                );
+            }
+
            // Ensure that conversion between block points and wrap points is stable.
            for row in 0..=blocks_snapshot.wrap_snapshot.max_point().row() {
                let wrap_point = WrapPoint::new(row, 0);
--- a/crates/editor/src/display_map/inlay_map.rs
+++ b/crates/editor/src/display_map/inlay_map.rs
@@ -211,7 +211,7 @@ pub struct InlayBufferRows<'a> {
 struct HighlightEndpoint {
    offset: InlayOffset,
    is_start: bool,
-    tag: Option<TypeId>,
+    tag: TypeId,
    style: HighlightStyle,
 }

@@ -239,7 +239,7 @@ pub struct InlayChunks<'a> {
    max_output_offset: InlayOffset,
    highlight_styles: HighlightStyles,
    highlight_endpoints: Peekable<vec::IntoIter<HighlightEndpoint>>,
-    active_highlights: BTreeMap<Option<TypeId>, HighlightStyle>,
+    active_highlights: BTreeMap<TypeId, HighlightStyle>,
    highlights: Highlights<'a>,
    snapshot: &'a InlaySnapshot,
 }
@@ -1019,7 +1019,7 @@ impl InlaySnapshot {
        let inlay_point = InlayPoint::new(row, 0);
        cursor.seek(&inlay_point, Bias::Left, &());

-        let max_buffer_row = MultiBufferRow(self.buffer.max_point().row);
+        let max_buffer_row = self.buffer.max_row();
        let mut buffer_point = cursor.start().1;
        let buffer_row = if row == 0 {
            MultiBufferRow(0)
@@ -1096,7 +1096,7 @@ impl InlaySnapshot {
        &self,
        cursor: &mut Cursor<'_, Transform, (InlayOffset, usize)>,
        range: &Range<InlayOffset>,
-        text_highlights: &TreeMap<Option<TypeId>, Arc<(HighlightStyle, Vec<Range<Anchor>>)>>,
+        text_highlights: &TreeMap<TypeId, Arc<(HighlightStyle, Vec<Range<Anchor>>)>>,
        highlight_endpoints: &mut Vec<HighlightEndpoint>,
    ) {
        while cursor.start().0 < range.end {
@@ -1112,7 +1112,7 @@ impl InlaySnapshot {
                    )))
                };

-            for (tag, text_highlights) in text_highlights.iter() {
+            for (&tag, text_highlights) in text_highlights.iter() {
                let style = text_highlights.0;
                let ranges = &text_highlights.1;

@@ -1134,13 +1134,13 @@ impl InlaySnapshot {
                    highlight_endpoints.push(HighlightEndpoint {
                        offset: self.to_inlay_offset(range.start.to_offset(&self.buffer)),
                        is_start: true,
-                        tag: *tag,
+                        tag,
                        style,
                    });
                    highlight_endpoints.push(HighlightEndpoint {
                        offset: self.to_inlay_offset(range.end.to_offset(&self.buffer)),
                        is_start: false,
-                        tag: *tag,
+                        tag,
                        style,
                    });
                }
@@ -1708,7 +1708,7 @@ mod tests {
            text_highlight_ranges.sort_by_key(|range| (range.start, Reverse(range.end)));
            log::info!("highlighting text ranges {text_highlight_ranges:?}");
            text_highlights.insert(
-                Some(TypeId::of::<()>()),
+                TypeId::of::<()>(),
                Arc::new((
                    HighlightStyle::default(),
                    text_highlight_ranges
--- a/crates/editor/src/editor.rs
+++ b/crates/editor/src/editor.rs
--- a/crates/editor/src/editor_settings.rs
+++ b/crates/editor/src/editor_settings.rs
@@ -10,9 +10,6 @@ pub struct EditorSettings {
    pub cursor_shape: Option<CursorShape>,
    pub current_line_highlight: CurrentLineHighlight,
    pub hover_popover_enabled: bool,
-    pub show_completions_on_input: bool,
-    pub show_completion_documentation: bool,
-    pub completion_documentation_secondary_query_debounce: u64,
    pub toolbar: Toolbar,
    pub scrollbar: Scrollbar,
    pub gutter: Gutter,
@@ -194,21 +191,6 @@ pub struct EditorSettingsContent {
    /// Default: true
    pub hover_popover_enabled: Option<bool>,

-    /// Whether to pop the completions menu while typing in an editor without
-    /// explicitly requesting it.
-    ///
-    /// Default: true
-    pub show_completions_on_input: Option<bool>,
-    /// Whether to display inline and alongside documentation for items in the
-    /// completions menu.
-    ///
-    /// Default: true
-    pub show_completion_documentation: Option<bool>,
-    /// The debounce delay before re-querying the language server for completion
-    /// documentation when not included in original completion list.
-    ///
-    /// Default: 300 ms
-    pub completion_documentation_secondary_query_debounce: Option<u64>,
    /// Toolbar related settings
    pub toolbar: Option<ToolbarContent>,
    /// Scrollbar related settings
--- a/crates/editor/src/editor_tests.rs
+++ b/crates/editor/src/editor_tests.rs
--- a/crates/editor/src/element.rs
+++ b/crates/editor/src/element.rs
@@ -1,5 +1,6 @@
 use crate::{
    blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
+    code_context_menus::CodeActionsMenu,
    display_map::{
        Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
    },
@@ -16,13 +17,13 @@ use crate::{
    items::BufferSearchHighlights,
    mouse_context_menu::{self, MenuPosition, MouseContextMenu},
    scroll::scroll_amount::ScrollAmount,
-    BlockId, ChunkReplacement, CodeActionsMenu, CursorShape, CustomBlockId, DisplayPoint,
-    DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, Editor, EditorMode, EditorSettings,
+    BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
+    DocumentHighlightRead, DocumentHighlightWrite, Editor, EditorMode, EditorSettings,
    EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GutterDimensions, HalfPageDown,
-    HalfPageUp, HandleInput, HoveredCursor, HoveredHunk, JumpData, LineDown, LineUp, OpenExcerpts,
-    PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, Selection, SoftWrap, ToPoint,
-    CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
-    MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
+    HalfPageUp, HandleInput, HoveredCursor, HoveredHunk, InlineCompletion, JumpData, LineDown,
+    LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, Selection,
+    SoftWrap, ToPoint, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
+    GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
 };
 use client::ParticipantIndex;
 use collections::{BTreeMap, HashMap, HashSet};
@@ -31,7 +32,7 @@ use gpui::{
    anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
    transparent_black, Action, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClipboardItem,
    ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
-    FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Length,
+    FontId, GlobalElementId, HighlightStyle, Hitbox, Hsla, InteractiveElement, IntoElement, Length,
    ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
    ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
    StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, View, ViewContext,
@@ -47,7 +48,10 @@ use language::{
    ChunkRendererContext,
 };
 use lsp::DiagnosticSeverity;
-use multi_buffer::{Anchor, ExcerptId, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow};
+use multi_buffer::{
+    Anchor, AnchorRangeExt, ExcerptId, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
+    MultiBufferSnapshot, ToOffset,
+};
 use project::{
    project_settings::{GitGutterSetting, ProjectSettings},
    ProjectPath,
@@ -169,6 +173,7 @@ impl EditorElement {

        crate::rust_analyzer_ext::apply_related_actions(view, cx);
        crate::clangd_ext::apply_related_actions(view, cx);
+        register_action(view, cx, Editor::open_context_menu);
        register_action(view, cx, Editor::move_left);
        register_action(view, cx, Editor::move_right);
        register_action(view, cx, Editor::move_down);
@@ -189,6 +194,7 @@ impl EditorElement {
        register_action(view, cx, Editor::tab_prev);
        register_action(view, cx, Editor::indent);
        register_action(view, cx, Editor::outdent);
+        register_action(view, cx, Editor::autoindent);
        register_action(view, cx, Editor::delete_line);
        register_action(view, cx, Editor::join_lines);
        register_action(view, cx, Editor::sort_lines_case_sensitive);
@@ -341,6 +347,7 @@ impl EditorElement {
        register_action(view, cx, Editor::fold);
        register_action(view, cx, Editor::fold_at_level);
        register_action(view, cx, Editor::fold_all);
+        register_action(view, cx, Editor::fold_function_bodies);
        register_action(view, cx, Editor::fold_at);
        register_action(view, cx, Editor::fold_recursive);
        register_action(view, cx, Editor::toggle_fold);
@@ -453,6 +460,8 @@ impl EditorElement {
        register_action(view, cx, Editor::open_active_item_in_terminal);
        register_action(view, cx, Editor::reload_file);
        register_action(view, cx, Editor::spawn_nearest_task);
+        register_action(view, cx, Editor::insert_uuid_v4);
+        register_action(view, cx, Editor::insert_uuid_v7);
    }

    fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
@@ -593,7 +602,7 @@ impl EditorElement {
            position_map.point_for_position(text_hitbox.bounds, event.position);
        mouse_context_menu::deploy_context_menu(
            editor,
-            event.position,
+            Some(event.position),
            point_for_position.previous_valid,
            cx,
        );
@@ -1166,7 +1175,7 @@ impl EditorElement {
                let editor = self.editor.read(cx);
                let is_singleton = editor.is_singleton(cx);
                // Git
-                (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
+                (is_singleton && scrollbar_settings.git_diff && !snapshot.diff_map.is_empty())
                    ||
                    // Buffer Search Results
                    (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
@@ -1317,17 +1326,8 @@ impl EditorElement {
        cx: &mut WindowContext,
    ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
        let buffer_snapshot = &snapshot.buffer_snapshot;
-
-        let buffer_start_row = MultiBufferRow(
-            DisplayPoint::new(display_rows.start, 0)
-                .to_point(snapshot)
-                .row,
-        );
-        let buffer_end_row = MultiBufferRow(
-            DisplayPoint::new(display_rows.end, 0)
-                .to_point(snapshot)
-                .row,
-        );
+        let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
+        let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);

        let git_gutter_setting = ProjectSettings::get_global(cx)
            .git
@@ -1335,7 +1335,7 @@ impl EditorElement {
            .unwrap_or_default();

        self.editor.update(cx, |editor, cx| {
-            let expanded_hunks = &editor.expanded_hunks.hunks;
+            let expanded_hunks = &editor.diff_map.hunks;
            let expanded_hunks_start_ix = expanded_hunks
                .binary_search_by(|hunk| {
                    hunk.hunk_range
@@ -1346,8 +1346,10 @@ impl EditorElement {
                .unwrap_err();
            let mut expanded_hunks = expanded_hunks[expanded_hunks_start_ix..].iter().peekable();

-            let display_hunks = buffer_snapshot
-                .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
+            let mut display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)> = editor
+                .diff_map
+                .snapshot
+                .diff_hunks_in_range(buffer_start..buffer_end, &buffer_snapshot)
                .filter_map(|hunk| {
                    let display_hunk = diff_hunk_to_display(&hunk, snapshot);

@@ -1390,25 +1392,23 @@ impl EditorElement {
                    Some(display_hunk)
                })
                .dedup()
-                .map(|hunk| match git_gutter_setting {
-                    GitGutterSetting::TrackedFiles => {
-                        let hitbox = match hunk {
-                            DisplayDiffHunk::Unfolded { .. } => {
-                                let hunk_bounds = Self::diff_hunk_bounds(
-                                    snapshot,
-                                    line_height,
-                                    gutter_hitbox.bounds,
-                                    &hunk,
-                                );
-                                Some(cx.insert_hitbox(hunk_bounds, true))
-                            }
-                            DisplayDiffHunk::Folded { .. } => None,
-                        };
-                        (hunk, hitbox)
-                    }
-                    GitGutterSetting::Hide => (hunk, None),
-                })
+                .map(|hunk| (hunk, None))
                .collect();
+
+            if let GitGutterSetting::TrackedFiles = git_gutter_setting {
+                for (hunk, hitbox) in &mut display_hunks {
+                    if let DisplayDiffHunk::Unfolded { .. } = hunk {
+                        let hunk_bounds = Self::diff_hunk_bounds(
+                            snapshot,
+                            line_height,
+                            gutter_hitbox.bounds,
+                            &hunk,
+                        );
+                        *hitbox = Some(cx.insert_hitbox(hunk_bounds, true));
+                    };
+                }
+            }
+
            display_hunks
        })
    }
@@ -1681,7 +1681,7 @@ impl EditorElement {
    ) -> Vec<AnyElement> {
        self.editor.update(cx, |editor, cx| {
            let active_task_indicator_row =
-                if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
+                if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
                    deployed_from_indicator,
                    actions,
                    ..
@@ -1696,16 +1696,23 @@ impl EditorElement {
                    None
                };

+            let offset_range_start = snapshot
+                .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
+                .to_offset(&snapshot.buffer_snapshot);
+            let offset_range_end = snapshot
+                .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
+                .to_offset(&snapshot.buffer_snapshot);
+
            editor
                .tasks
                .iter()
                .filter_map(|(_, tasks)| {
-                    let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
-                    let multibuffer_row = MultiBufferRow(multibuffer_point.row);
-                    let display_row = multibuffer_point.to_display_point(snapshot).row();
-                    if range.start > display_row || range.end < display_row {
+                    if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
                        return None;
                    }
+                    let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
+                    let multibuffer_row = MultiBufferRow(multibuffer_point.row);
+
                    if snapshot.is_line_folded(multibuffer_row) {
                        // Skip folded indicators, unless it's the starting line of a fold.
                        if multibuffer_row
@@ -1718,6 +1725,7 @@ impl EditorElement {
                            return None;
                        }
                    }
+                    let display_row = multibuffer_point.to_display_point(snapshot).row();
                    let button = editor.render_run_indicator(
                        &self.style,
                        Some(display_row) == active_task_indicator_row,
@@ -1756,7 +1764,7 @@ impl EditorElement {
        let mut button = None;
        let row = newest_selection_head.row();
        self.editor.update(cx, |editor, cx| {
-            if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
+            if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
                deployed_from_indicator,
                ..
            })) = editor.context_menu.read().as_ref()
@@ -2724,10 +2732,161 @@ impl EditorElement {
        true
    }

+    #[allow(clippy::too_many_arguments)]
+    fn layout_inline_completion_popover(
+        &self,
+        text_bounds: &Bounds<Pixels>,
+        editor_snapshot: &EditorSnapshot,
+        visible_row_range: Range<DisplayRow>,
+        scroll_top: f32,
+        scroll_bottom: f32,
+        line_layouts: &[LineWithInvisibles],
+        line_height: Pixels,
+        scroll_pixel_position: gpui::Point<Pixels>,
+        editor_width: Pixels,
+        style: &EditorStyle,
+        cx: &mut WindowContext,
+    ) -> Option<AnyElement> {
+        const PADDING_X: Pixels = Pixels(25.);
+        const PADDING_Y: Pixels = Pixels(2.);
+
+        let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
+
+        match &active_inline_completion.completion {
+            InlineCompletion::Move(target_position) => {
+                let container_element = div()
+                    .bg(cx.theme().colors().editor_background)
+                    .border_1()
+                    .border_color(cx.theme().colors().border)
+                    .rounded_md()
+                    .px_1();
+
+                let target_display_point = target_position.to_display_point(editor_snapshot);
+                if target_display_point.row().as_f32() < scroll_top {
+                    let mut element = container_element
+                        .child(
+                            h_flex()
+                                .gap_1()
+                                .child(Icon::new(IconName::Tab))
+                                .child(Label::new("Jump to Edit"))
+                                .child(Icon::new(IconName::ArrowUp)),
+                        )
+                        .into_any();
+                    let size = element.layout_as_root(AvailableSpace::min_size(), cx);
+                    let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
+                    element.prepaint_at(text_bounds.origin + offset, cx);
+                    Some(element)
+                } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
+                    let mut element = container_element
+                        .child(
+                            h_flex()
+                                .gap_1()
+                                .child(Icon::new(IconName::Tab))
+                                .child(Label::new("Jump to Edit"))
+                                .child(Icon::new(IconName::ArrowDown)),
+                        )
+                        .into_any();
+                    let size = element.layout_as_root(AvailableSpace::min_size(), cx);
+                    let offset = point(
+                        (text_bounds.size.width - size.width) / 2.,
+                        text_bounds.size.height - size.height - PADDING_Y,
+                    );
+                    element.prepaint_at(text_bounds.origin + offset, cx);
+                    Some(element)
+                } else {
+                    let mut element = container_element
+                        .child(
+                            h_flex()
+                                .gap_1()
+                                .child(Icon::new(IconName::Tab))
+                                .child(Label::new("Jump to Edit")),
+                        )
+                        .into_any();
+
+                    let target_line_end = DisplayPoint::new(
+                        target_display_point.row(),
+                        editor_snapshot.line_len(target_display_point.row()),
+                    );
+                    let origin = self.editor.update(cx, |editor, cx| {
+                        editor.display_to_pixel_point(target_line_end, editor_snapshot, cx)
+                    })?;
+                    element.prepaint_as_root(
+                        text_bounds.origin + origin + point(PADDING_X, px(0.)),
+                        AvailableSpace::min_size(),
+                        cx,
+                    );
+                    Some(element)
+                }
+            }
+            InlineCompletion::Edit(edits) => {
+                let edit_start = edits
+                    .first()
+                    .unwrap()
+                    .0
+                    .start
+                    .to_display_point(editor_snapshot);
+                let edit_end = edits
+                    .last()
+                    .unwrap()
+                    .0
+                    .end
+                    .to_display_point(editor_snapshot);
+
+                let is_visible = visible_row_range.contains(&edit_start.row())
+                    || visible_row_range.contains(&edit_end.row());
+                if !is_visible {
+                    return None;
+                }
+
+                if all_edits_insertions_or_deletions(edits, &editor_snapshot.buffer_snapshot) {
+                    return None;
+                }
+
+                let (text, highlights) = inline_completion_popover_text(editor_snapshot, edits, cx);
+
+                let longest_row =
+                    editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
+                let longest_line_width = if visible_row_range.contains(&longest_row) {
+                    line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
+                } else {
+                    layout_line(
+                        longest_row,
+                        editor_snapshot,
+                        style,
+                        editor_width,
+                        |_| false,
+                        cx,
+                    )
+                    .width
+                };
+
+                let text = gpui::StyledText::new(text).with_highlights(&style.text, highlights);
+
+                let mut element = div()
+                    .bg(cx.theme().colors().editor_background)
+                    .border_1()
+                    .border_color(cx.theme().colors().border)
+                    .rounded_md()
+                    .px_1()
+                    .child(text)
+                    .into_any();
+
+                let origin = text_bounds.origin
+                    + point(
+                        longest_line_width + PADDING_X - scroll_pixel_position.x,
+                        edit_start.row().as_f32() * line_height - scroll_pixel_position.y,
+                    );
+                element.prepaint_as_root(origin, AvailableSpace::min_size(), cx);
+                Some(element)
+            }
+        }
+    }
+
    fn layout_mouse_context_menu(
        &self,
        editor_snapshot: &EditorSnapshot,
        visible_range: Range<DisplayRow>,
+        content_origin: gpui::Point<Pixels>,
        cx: &mut WindowContext,
    ) -> Option<AnyElement> {
        let position = self.editor.update(cx, |editor, cx| {
@@ -2745,16 +2904,11 @@ impl EditorElement {
            let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
            let (source_display_point, position) = match mouse_context_menu.position {
                MenuPosition::PinnedToScreen(point) => (None, point),
-                MenuPosition::PinnedToEditor {
-                    source,
-                    offset_x,
-                    offset_y,
-                } => {
+                MenuPosition::PinnedToEditor { source, offset } => {
                    let source_display_point = source.to_display_point(editor_snapshot);
-                    let mut source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
-                    source_point.x += offset_x;
-                    source_point.y += offset_y;
-                    (Some(source_display_point), source_point)
+                    let source_point = editor.to_pixel_point(source, editor_snapshot, cx)?;
+                    let position = content_origin + source_point + offset;
+                    (Some(source_display_point), position)
                }
            };

@@ -3756,10 +3910,8 @@ impl EditorElement {
                            let mut marker_quads = Vec::new();
                            if scrollbar_settings.git_diff {
                                let marker_row_ranges = snapshot
-                                    .buffer_snapshot
-                                    .git_diff_hunks_in_range(
-                                        MultiBufferRow::MIN..MultiBufferRow::MAX,
-                                    )
+                                    .diff_map
+                                    .diff_hunks(&snapshot.buffer_snapshot)
                                    .map(|hunk| {
                                        let start_display_row =
                                            MultiBufferPoint::new(hunk.row_range.start.0, 0)
@@ -3952,6 +4104,16 @@ impl EditorElement {
        }
    }

+    fn paint_inline_completion_popover(
+        &mut self,
+        layout: &mut EditorLayout,
+        cx: &mut WindowContext,
+    ) {
+        if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
+            inline_completion_popover.paint(cx);
+        }
+    }
+
    fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
        if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
            mouse_context_menu.paint(cx);
@@ -4139,17 +4301,94 @@ impl EditorElement {
    }

    fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
-        let digit_count = snapshot
-            .max_buffer_row()
-            .next_row()
-            .as_f32()
-            .log10()
-            .floor() as usize
-            + 1;
+        let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
        self.column_pixels(digit_count, cx)
    }
 }

+fn inline_completion_popover_text(
+    editor_snapshot: &EditorSnapshot,
+    edits: &Vec<(Range<Anchor>, String)>,
+    cx: &WindowContext,
+) -> (String, Vec<(Range<usize>, HighlightStyle)>) {
+    let edit_start = edits
+        .first()
+        .unwrap()
+        .0
+        .start
+        .to_display_point(editor_snapshot);
+
+    let mut text = String::new();
+    let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
+    let mut highlights = Vec::new();
+    for (old_range, new_text) in edits {
+        let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
+        text.extend(
+            editor_snapshot
+                .buffer_snapshot
+                .chunks(offset..old_offset_range.start, false)
+                .map(|chunk| chunk.text),
+        );
+        offset = old_offset_range.end;
+
+        let start = text.len();
+        text.push_str(new_text);
+        let end = text.len();
+        highlights.push((
+            start..end,
+            HighlightStyle {
+                background_color: Some(cx.theme().status().created_background),
+                ..Default::default()
+            },
+        ));
+    }
+
+    let edit_end = edits
+        .last()
+        .unwrap()
+        .0
+        .end
+        .to_display_point(editor_snapshot);
+    let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
+        .to_offset(editor_snapshot, Bias::Right);
+    text.extend(
+        editor_snapshot
+            .buffer_snapshot
+            .chunks(offset..end_of_line, false)
+            .map(|chunk| chunk.text),
+    );
+
+    (text, highlights)
+}
+
+fn all_edits_insertions_or_deletions(
+    edits: &Vec<(Range<Anchor>, String)>,
+    snapshot: &MultiBufferSnapshot,
+) -> bool {
+    let mut all_insertions = true;
+    let mut all_deletions = true;
+
+    for (range, new_text) in edits.iter() {
+        let range_is_empty = range.to_offset(&snapshot).is_empty();
+        let text_is_empty = new_text.is_empty();
+
+        if range_is_empty != text_is_empty {
+            if range_is_empty {
+                all_deletions = false;
+            } else {
+                all_insertions = false;
+            }
+        } else {
+            return false;
+        }
+
+        if !all_insertions && !all_deletions {
+            return false;
+        }
+    }
+    all_insertions || all_deletions
+}
+
 #[allow(clippy::too_many_arguments)]
 fn prepaint_gutter_button(
    button: IconButton,
@@ -4329,8 +4568,8 @@ fn deploy_blame_entry_context_menu(
    });

    editor.update(cx, move |editor, cx| {
-        editor.mouse_context_menu = Some(MouseContextMenu::pinned_to_screen(
-            position,
+        editor.mouse_context_menu = Some(MouseContextMenu::new(
+            MenuPosition::PinnedToScreen(position),
            context_menu,
            cx,
        ));
@@ -5447,7 +5686,7 @@ impl Element for EditorElement {

                    let expanded_add_hunks_by_rows = self.editor.update(cx, |editor, _| {
                        editor
-                            .expanded_hunks
+                            .diff_map
                            .hunks(false)
                            .filter(|hunk| hunk.status == DiffHunkStatus::Added)
                            .map(|expanded_hunk| {
@@ -5582,8 +5821,26 @@ impl Element for EditorElement {
                        );
                    }

-                    let mouse_context_menu =
-                        self.layout_mouse_context_menu(&snapshot, start_row..end_row, cx);
+                    let inline_completion_popover = self.layout_inline_completion_popover(
+                        &text_hitbox.bounds,
+                        &snapshot,
+                        start_row..end_row,
+                        scroll_position.y,
+                        scroll_position.y + height_in_lines,
+                        &line_layouts,
+                        line_height,
+                        scroll_pixel_position,
+                        editor_width,
+                        &style,
+                        cx,
+                    );
+
+                    let mouse_context_menu = self.layout_mouse_context_menu(
+                        &snapshot,
+                        start_row..end_row,
+                        content_origin,
+                        cx,
+                    );

                    cx.with_element_namespace("crease_toggles", |cx| {
                        self.prepaint_crease_toggles(
@@ -5664,6 +5921,7 @@ impl Element for EditorElement {
                        cursors,
                        visible_cursors,
                        selections,
+                        inline_completion_popover,
                        mouse_context_menu,
                        test_indicators,
                        code_actions_indicator,
@@ -5753,6 +6011,7 @@ impl Element for EditorElement {
                    }

                    self.paint_scrollbar(layout, cx);
+                    self.paint_inline_completion_popover(layout, cx);
                    self.paint_mouse_context_menu(layout, cx);
                });
            })
@@ -5808,6 +6067,7 @@ pub struct EditorLayout {
    test_indicators: Vec<AnyElement>,
    crease_toggles: Vec<Option<AnyElement>>,
    crease_trailers: Vec<Option<CreaseTrailerLayout>>,
+    inline_completion_popover: Option<AnyElement>,
    mouse_context_menu: Option<AnyElement>,
    tab_invisible: ShapedLine,
    space_invisible: ShapedLine,
@@ -6849,6 +7109,161 @@ mod tests {
        }
    }

+    #[gpui::test]
+    fn test_inline_completion_popover_text(cx: &mut TestAppContext) {
+        init_test(cx, |_| {});
+
+        // Test case 1: Simple insertion
+        {
+            let window = cx.add_window(|cx| {
+                let buffer = MultiBuffer::build_simple("Hello, world!", cx);
+                Editor::new(EditorMode::Full, buffer, None, true, cx)
+            });
+            let cx = &mut VisualTestContext::from_window(*window, cx);
+
+            window
+                .update(cx, |editor, cx| {
+                    let snapshot = editor.snapshot(cx);
+                    let edit_range = snapshot.buffer_snapshot.anchor_after(Point::new(0, 6))
+                        ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 6));
+                    let edits = vec![(edit_range, " beautiful".to_string())];
+
+                    let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
+
+                    assert_eq!(text, "Hello, beautiful world!");
+                    assert_eq!(highlights.len(), 1);
+                    assert_eq!(highlights[0].0, 6..16);
+                    assert_eq!(
+                        highlights[0].1.background_color,
+                        Some(cx.theme().status().created_background)
+                    );
+                })
+                .unwrap();
+        }
+
+        // Test case 2: Replacement
+        {
+            let window = cx.add_window(|cx| {
+                let buffer = MultiBuffer::build_simple("This is a test.", cx);
+                Editor::new(EditorMode::Full, buffer, None, true, cx)
+            });
+            let cx = &mut VisualTestContext::from_window(*window, cx);
+
+            window
+                .update(cx, |editor, cx| {
+                    let snapshot = editor.snapshot(cx);
+                    let edits = vec![(
+                        snapshot.buffer_snapshot.anchor_after(Point::new(0, 0))
+                            ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 4)),
+                        "That".to_string(),
+                    )];
+
+                    let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
+
+                    assert_eq!(text, "That is a test.");
+                    assert_eq!(highlights.len(), 1);
+                    assert_eq!(highlights[0].0, 0..4);
+                    assert_eq!(
+                        highlights[0].1.background_color,
+                        Some(cx.theme().status().created_background)
+                    );
+                })
+                .unwrap();
+        }
+
+        // Test case 3: Multiple edits
+        {
+            let window = cx.add_window(|cx| {
+                let buffer = MultiBuffer::build_simple("Hello, world!", cx);
+                Editor::new(EditorMode::Full, buffer, None, true, cx)
+            });
+            let cx = &mut VisualTestContext::from_window(*window, cx);
+
+            window
+                .update(cx, |editor, cx| {
+                    let snapshot = editor.snapshot(cx);
+                    let edits = vec![
+                        (
+                            snapshot.buffer_snapshot.anchor_after(Point::new(0, 0))
+                                ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 5)),
+                            "Greetings".into(),
+                        ),
+                        (
+                            snapshot.buffer_snapshot.anchor_after(Point::new(0, 12))
+                                ..snapshot.buffer_snapshot.anchor_before(Point::new(0, 12)),
+                            " and universe".into(),
+                        ),
+                    ];
+
+                    let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
+
+                    assert_eq!(text, "Greetings, world and universe!");
+                    assert_eq!(highlights.len(), 2);
+                    assert_eq!(highlights[0].0, 0..9);
+                    assert_eq!(highlights[1].0, 16..29);
+                    assert_eq!(
+                        highlights[0].1.background_color,
+                        Some(cx.theme().status().created_background)
+                    );
+                    assert_eq!(
+                        highlights[1].1.background_color,
+                        Some(cx.theme().status().created_background)
+                    );
+                })
+                .unwrap();
+        }
+
+        // Test case 4: Multiple lines with edits
+        {
+            let window = cx.add_window(|cx| {
+                let buffer = MultiBuffer::build_simple(
+                    "First line\nSecond line\nThird line\nFourth line",
+                    cx,
+                );
+                Editor::new(EditorMode::Full, buffer, None, true, cx)
+            });
+            let cx = &mut VisualTestContext::from_window(*window, cx);
+
+            window
+                .update(cx, |editor, cx| {
+                    let snapshot = editor.snapshot(cx);
+                    let edits = vec![
+                        (
+                            snapshot.buffer_snapshot.anchor_before(Point::new(1, 7))
+                                ..snapshot.buffer_snapshot.anchor_before(Point::new(1, 11)),
+                            "modified".to_string(),
+                        ),
+                        (
+                            snapshot.buffer_snapshot.anchor_before(Point::new(2, 0))
+                                ..snapshot.buffer_snapshot.anchor_before(Point::new(2, 10)),
+                            "New third line".to_string(),
+                        ),
+                        (
+                            snapshot.buffer_snapshot.anchor_before(Point::new(3, 6))
+                                ..snapshot.buffer_snapshot.anchor_before(Point::new(3, 6)),
+                            " updated".to_string(),
+                        ),
+                    ];
+
+                    let (text, highlights) = inline_completion_popover_text(&snapshot, &edits, cx);
+
+                    assert_eq!(text, "Second modified\nNew third line\nFourth updated line");
+                    assert_eq!(highlights.len(), 3);
+                    assert_eq!(highlights[0].0, 7..15); // "modified"
+                    assert_eq!(highlights[1].0, 16..30); // "New third line"
+                    assert_eq!(highlights[2].0, 37..45); // " updated"
+
+                    for highlight in &highlights {
+                        assert_eq!(
+                            highlight.1.background_color,
+                            Some(cx.theme().status().created_background)
+                        );
+                    }
+                })
+                .unwrap();
+        }
+    }
+
    fn collect_invisibles_from_new_editor(
        cx: &mut TestAppContext,
        editor_mode: EditorMode,
--- a/crates/editor/src/git.rs
+++ b/crates/editor/src/git.rs
@@ -1 +1,2 @@
 pub mod blame;
+pub mod project_diff;
--- a/crates/editor/src/git/blame.rs
+++ b/crates/editor/src/git/blame.rs
@@ -154,7 +154,7 @@ impl GitBlame {
                        this.generate(cx);
                    }
                }
-                project::Event::WorktreeUpdatedGitRepositories => {
+                project::Event::WorktreeUpdatedGitRepositories(_) => {
                    log::debug!("Status of git repositories updated. Regenerating blame data...",);
                    this.generate(cx);
                }
--- a/crates/editor/src/git/project_diff.rs
+++ b/crates/editor/src/git/project_diff.rs
--- a/crates/editor/src/hover_popover.rs
+++ b/crates/editor/src/hover_popover.rs
@@ -378,7 +378,7 @@ fn show_hover(
                            },
                            ..Default::default()
                        };
-                        Markdown::new_text(text, markdown_style.clone(), None, cx, None)
+                        Markdown::new_text(text, markdown_style.clone(), None, None, cx)
                    })
                    .ok();

@@ -593,8 +593,8 @@ async fn parse_blocks(
                combined_text,
                markdown_style.clone(),
                Some(language_registry.clone()),
-                cx,
                fallback_language_name,
+                cx,
            )
        })
        .ok();
--- a/crates/editor/src/hunk_diff.rs
+++ b/crates/editor/src/hunk_diff.rs
@@ -1,12 +1,17 @@
-use collections::{hash_map, HashMap, HashSet};
+use collections::{HashMap, HashSet};
 use git::diff::DiffHunkStatus;
-use gpui::{Action, AnchorCorner, AppContext, CursorStyle, Hsla, Model, MouseButton, Task, View};
+use gpui::{
+    Action, AnchorCorner, AppContext, CursorStyle, Hsla, Model, MouseButton, Subscription, Task,
+    View,
+};
 use language::{Buffer, BufferId, Point};
 use multi_buffer::{
    Anchor, AnchorRangeExt, ExcerptRange, MultiBuffer, MultiBufferDiffHunk, MultiBufferRow,
-    MultiBufferSnapshot, ToPoint,
+    MultiBufferSnapshot, ToOffset, ToPoint,
 };
+use project::buffer_store::BufferChangeSet;
 use std::{ops::Range, sync::Arc};
+use sum_tree::TreeMap;
 use text::OffsetRangeExt;
 use ui::{
    prelude::*, ActiveTheme, ContextMenu, IconButtonShape, InteractiveElement, IntoElement,
@@ -29,10 +34,11 @@ pub(super) struct HoveredHunk {
    pub diff_base_byte_range: Range<usize>,
 }

-#[derive(Debug, Default)]
-pub(super) struct ExpandedHunks {
+#[derive(Default)]
+pub(super) struct DiffMap {
    pub(crate) hunks: Vec<ExpandedHunk>,
-    diff_base: HashMap<BufferId, DiffBaseBuffer>,
+    pub(crate) diff_bases: HashMap<BufferId, DiffBaseState>,
+    pub(crate) snapshot: DiffMapSnapshot,
    hunk_update_tasks: HashMap<Option<BufferId>, Task<()>>,
    expand_all: bool,
 }
@@ -46,10 +52,13 @@ pub(super) struct ExpandedHunk {
    pub folded: bool,
 }

-#[derive(Debug)]
-struct DiffBaseBuffer {
-    buffer: Model<Buffer>,
-    diff_base_version: usize,
+#[derive(Clone, Debug, Default)]
+pub(crate) struct DiffMapSnapshot(TreeMap<BufferId, git::diff::BufferDiff>);
+
+pub(crate) struct DiffBaseState {
+    pub(crate) change_set: Model<BufferChangeSet>,
+    pub(crate) last_version: Option<usize>,
+    _subscription: Subscription,
 }

 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -66,7 +75,38 @@ pub enum DisplayDiffHunk {
    },
 }

-impl ExpandedHunks {
+impl DiffMap {
+    pub fn snapshot(&self) -> DiffMapSnapshot {
+        self.snapshot.clone()
+    }
+
+    pub fn add_change_set(
+        &mut self,
+        change_set: Model<BufferChangeSet>,
+        cx: &mut ViewContext<Editor>,
+    ) {
+        let buffer_id = change_set.read(cx).buffer_id;
+        self.snapshot
+            .0
+            .insert(buffer_id, change_set.read(cx).diff_to_buffer.clone());
+        self.diff_bases.insert(
+            buffer_id,
+            DiffBaseState {
+                last_version: None,
+                _subscription: cx.observe(&change_set, move |editor, change_set, cx| {
+                    editor
+                        .diff_map
+                        .snapshot
+                        .0
+                        .insert(buffer_id, change_set.read(cx).diff_to_buffer.clone());
+                    Editor::sync_expanded_diff_hunks(&mut editor.diff_map, buffer_id, cx);
+                }),
+                change_set,
+            },
+        );
+        Editor::sync_expanded_diff_hunks(self, buffer_id, cx);
+    }
+
    pub fn hunks(&self, include_folded: bool) -> impl Iterator<Item = &ExpandedHunk> {
        self.hunks
            .iter()
@@ -74,9 +114,92 @@ impl ExpandedHunks {
    }
 }

+impl DiffMapSnapshot {
+    pub fn is_empty(&self) -> bool {
+        self.0.values().all(|diff| diff.is_empty())
+    }
+
+    pub fn diff_hunks<'a>(
+        &'a self,
+        buffer_snapshot: &'a MultiBufferSnapshot,
+    ) -> impl Iterator<Item = MultiBufferDiffHunk> + 'a {
+        self.diff_hunks_in_range(0..buffer_snapshot.len(), buffer_snapshot)
+    }
+
+    pub fn diff_hunks_in_range<'a, T: ToOffset>(
+        &'a self,
+        range: Range<T>,
+        buffer_snapshot: &'a MultiBufferSnapshot,
+    ) -> impl Iterator<Item = MultiBufferDiffHunk> + 'a {
+        let range = range.start.to_offset(buffer_snapshot)..range.end.to_offset(buffer_snapshot);
+        buffer_snapshot
+            .excerpts_for_range(range.clone())
+            .filter_map(move |excerpt| {
+                let buffer = excerpt.buffer();
+                let buffer_id = buffer.remote_id();
+                let diff = self.0.get(&buffer_id)?;
+                let buffer_range = excerpt.map_range_to_buffer(range.clone());
+                let buffer_range =
+                    buffer.anchor_before(buffer_range.start)..buffer.anchor_after(buffer_range.end);
+                Some(
+                    diff.hunks_intersecting_range(buffer_range, excerpt.buffer())
+                        .map(move |hunk| {
+                            let start =
+                                excerpt.map_point_from_buffer(Point::new(hunk.row_range.start, 0));
+                            let end =
+                                excerpt.map_point_from_buffer(Point::new(hunk.row_range.end, 0));
+                            MultiBufferDiffHunk {
+                                row_range: MultiBufferRow(start.row)..MultiBufferRow(end.row),
+                                buffer_id,
+                                buffer_range: hunk.buffer_range.clone(),
+                                diff_base_byte_range: hunk.diff_base_byte_range.clone(),
+                            }
+                        }),
+                )
+            })
+            .flatten()
+    }
+
+    pub fn diff_hunks_in_range_rev<'a, T: ToOffset>(
+        &'a self,
+        range: Range<T>,
+        buffer_snapshot: &'a MultiBufferSnapshot,
+    ) -> impl Iterator<Item = MultiBufferDiffHunk> + 'a {
+        let range = range.start.to_offset(buffer_snapshot)..range.end.to_offset(buffer_snapshot);
+        buffer_snapshot
+            .excerpts_for_range_rev(range.clone())
+            .filter_map(move |excerpt| {
+                let buffer = excerpt.buffer();
+                let buffer_id = buffer.remote_id();
+                let diff = self.0.get(&buffer_id)?;
+                let buffer_range = excerpt.map_range_to_buffer(range.clone());
+                let buffer_range =
+                    buffer.anchor_before(buffer_range.start)..buffer.anchor_after(buffer_range.end);
+                Some(
+                    diff.hunks_intersecting_range_rev(buffer_range, excerpt.buffer())
+                        .map(move |hunk| {
+                            let start_row = excerpt
+                                .map_point_from_buffer(Point::new(hunk.row_range.start, 0))
+                                .row;
+                            let end_row = excerpt
+                                .map_point_from_buffer(Point::new(hunk.row_range.end, 0))
+                                .row;
+                            MultiBufferDiffHunk {
+                                row_range: MultiBufferRow(start_row)..MultiBufferRow(end_row),
+                                buffer_id,
+                                buffer_range: hunk.buffer_range.clone(),
+                                diff_base_byte_range: hunk.diff_base_byte_range.clone(),
+                            }
+                        }),
+                )
+            })
+            .flatten()
+    }
+}
+
 impl Editor {
    pub fn set_expand_all_diff_hunks(&mut self) {
-        self.expanded_hunks.expand_all = true;
+        self.diff_map.expand_all = true;
    }

    pub(super) fn toggle_hovered_hunk(
@@ -92,18 +215,15 @@ impl Editor {
    }

    pub fn toggle_hunk_diff(&mut self, _: &ToggleHunkDiff, cx: &mut ViewContext<Self>) {
-        let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
-        let selections = self.selections.disjoint_anchors();
-        self.toggle_hunks_expanded(
-            hunks_for_selections(&multi_buffer_snapshot, &selections),
-            cx,
-        );
+        let snapshot = self.snapshot(cx);
+        let selections = self.selections.all(cx);
+        self.toggle_hunks_expanded(hunks_for_selections(&snapshot, &selections), cx);
    }

    pub fn expand_all_hunk_diffs(&mut self, _: &ExpandAllHunkDiffs, cx: &mut ViewContext<Self>) {
        let snapshot = self.snapshot(cx);
        let display_rows_with_expanded_hunks = self
-            .expanded_hunks
+            .diff_map
            .hunks(false)
            .map(|hunk| &hunk.hunk_range)
            .map(|anchor_range| {
@@ -119,10 +239,10 @@ impl Editor {
                )
            })
            .collect::<HashMap<_, _>>();
-        let hunks = snapshot
-            .display_snapshot
-            .buffer_snapshot
-            .git_diff_hunks_in_range(MultiBufferRow::MIN..MultiBufferRow::MAX)
+        let hunks = self
+            .diff_map
+            .snapshot
+            .diff_hunks(&snapshot.display_snapshot.buffer_snapshot)
            .filter(|hunk| {
                let hunk_display_row_range = Point::new(hunk.row_range.start.0, 0)
                    .to_display_point(&snapshot.display_snapshot)
@@ -140,11 +260,11 @@ impl Editor {
        hunks_to_toggle: Vec<MultiBufferDiffHunk>,
        cx: &mut ViewContext<Self>,
    ) {
-        if self.expanded_hunks.expand_all {
+        if self.diff_map.expand_all {
            return;
        }

-        let previous_toggle_task = self.expanded_hunks.hunk_update_tasks.remove(&None);
+        let previous_toggle_task = self.diff_map.hunk_update_tasks.remove(&None);
        let new_toggle_task = cx.spawn(move |editor, mut cx| async move {
            if let Some(task) = previous_toggle_task {
                task.await;
@@ -154,11 +274,10 @@ impl Editor {
                .update(&mut cx, |editor, cx| {
                    let snapshot = editor.snapshot(cx);
                    let mut hunks_to_toggle = hunks_to_toggle.into_iter().fuse().peekable();
-                    let mut highlights_to_remove =
-                        Vec::with_capacity(editor.expanded_hunks.hunks.len());
+                    let mut highlights_to_remove = Vec::with_capacity(editor.diff_map.hunks.len());
                    let mut blocks_to_remove = HashSet::default();
                    let mut hunks_to_expand = Vec::new();
-                    editor.expanded_hunks.hunks.retain(|expanded_hunk| {
+                    editor.diff_map.hunks.retain(|expanded_hunk| {
                        if expanded_hunk.folded {
                            return true;
                        }
@@ -238,7 +357,7 @@ impl Editor {
                .ok();
        });

-        self.expanded_hunks
+        self.diff_map
            .hunk_update_tasks
            .insert(None, cx.background_executor().spawn(new_toggle_task));
    }
@@ -252,30 +371,34 @@ impl Editor {
        let buffer = self.buffer.clone();
        let multi_buffer_snapshot = buffer.read(cx).snapshot(cx);
        let hunk_range = hunk.multi_buffer_range.clone();
-        let (diff_base_buffer, deleted_text_lines) = buffer.update(cx, |buffer, cx| {
-            let buffer = buffer.buffer(hunk_range.start.buffer_id?)?;
-            let diff_base_buffer = diff_base_buffer
-                .or_else(|| self.current_diff_base_buffer(&buffer, cx))
-                .or_else(|| create_diff_base_buffer(&buffer, cx))?;
-            let deleted_text_lines = buffer.read(cx).diff_base().map(|diff_base| {
-                let diff_start_row = diff_base
-                    .offset_to_point(hunk.diff_base_byte_range.start)
-                    .row;
-                let diff_end_row = diff_base.offset_to_point(hunk.diff_base_byte_range.end).row;
-                diff_end_row - diff_start_row
-            })?;
-            Some((diff_base_buffer, deleted_text_lines))
+        let buffer_id = hunk_range.start.buffer_id?;
+        let diff_base_buffer = diff_base_buffer.or_else(|| {
+            self.diff_map
+                .diff_bases
+                .get(&buffer_id)?
+                .change_set
+                .read(cx)
+                .base_text
+                .clone()
        })?;

-        let block_insert_index = match self.expanded_hunks.hunks.binary_search_by(|probe| {
-            probe
-                .hunk_range
-                .start
-                .cmp(&hunk_range.start, &multi_buffer_snapshot)
-        }) {
-            Ok(_already_present) => return None,
-            Err(ix) => ix,
-        };
+        let diff_base = diff_base_buffer.read(cx);
+        let diff_start_row = diff_base
+            .offset_to_point(hunk.diff_base_byte_range.start)
+            .row;
+        let diff_end_row = diff_base.offset_to_point(hunk.diff_base_byte_range.end).row;
+        let deleted_text_lines = diff_end_row - diff_start_row;
+
+        let block_insert_index = self
+            .diff_map
+            .hunks
+            .binary_search_by(|probe| {
+                probe
+                    .hunk_range
+                    .start
+                    .cmp(&hunk_range.start, &multi_buffer_snapshot)
+            })
+            .err()?;

        let blocks;
        match hunk.status {
@@ -315,7 +438,7 @@ impl Editor {
                );
            }
        };
-        self.expanded_hunks.hunks.insert(
+        self.diff_map.hunks.insert(
            block_insert_index,
            ExpandedHunk {
                blocks,
@@ -374,8 +497,8 @@ impl Editor {
        _: &ApplyDiffHunk,
        cx: &mut ViewContext<Self>,
    ) {
-        let snapshot = self.buffer.read(cx).snapshot(cx);
-        let hunks = hunks_for_selections(&snapshot, &self.selections.disjoint_anchors());
+        let snapshot = self.snapshot(cx);
+        let hunks = hunks_for_selections(&snapshot, &self.selections.all(cx));
        let mut ranges_by_buffer = HashMap::default();
        self.transact(cx, |editor, cx| {
            for hunk in hunks {
@@ -399,6 +522,12 @@ impl Editor {
        }
    }

+    fn has_multiple_hunks(&self, cx: &AppContext) -> bool {
+        let snapshot = self.buffer.read(cx).snapshot(cx);
+        let mut hunks = self.diff_map.snapshot.diff_hunks(&snapshot);
+        hunks.nth(1).is_some()
+    }
+
    fn hunk_header_block(
        &self,
        hunk: &HoveredHunk,
@@ -409,7 +538,7 @@ impl Editor {
            .read(cx)
            .point_to_buffer_offset(hunk.multi_buffer_range.start, cx)
            .map_or(false, |(buffer, _, _)| {
-                buffer.read(cx).diff_base_buffer().is_some()
+                buffer.read(cx).base_buffer().is_some()
            });

        let border_color = cx.theme().colors().border_variant;
@@ -428,6 +557,7 @@ impl Editor {
            render: Arc::new({
                let editor = cx.view().clone();
                let hunk = hunk.clone();
+                let has_multiple_hunks = self.has_multiple_hunks(cx);

                move |cx| {
                    let hunk_controls_menu_handle =
@@ -471,6 +601,7 @@ impl Editor {
                                                IconButton::new("next-hunk", IconName::ArrowDown)
                                                    .shape(IconButtonShape::Square)
                                                    .icon_size(IconSize::Small)
+                                                    .disabled(!has_multiple_hunks)
                                                    .tooltip({
                                                        let focus_handle = editor.focus_handle(cx);
                                                        move |cx| {
@@ -499,6 +630,7 @@ impl Editor {
                                                IconButton::new("prev-hunk", IconName::ArrowUp)
                                                    .shape(IconButtonShape::Square)
                                                    .icon_size(IconSize::Small)
+                                                    .disabled(!has_multiple_hunks)
                                                    .tooltip({
                                                        let focus_handle = editor.focus_handle(cx);
                                                        move |cx| {
@@ -543,29 +675,9 @@ impl Editor {
                                                    let editor = editor.clone();
                                                    let hunk = hunk.clone();
                                                    move |_event, cx| {
-                                                        let multi_buffer =
-                                                            editor.read(cx).buffer().clone();
-                                                        let multi_buffer_snapshot =
-                                                            multi_buffer.read(cx).snapshot(cx);
-                                                        let mut revert_changes = HashMap::default();
-                                                        if let Some(hunk) =
-                                                            crate::hunk_diff::to_diff_hunk(
-                                                                &hunk,
-                                                                &multi_buffer_snapshot,
-                                                            )
-                                                        {
-                                                            Editor::prepare_revert_change(
-                                                                &mut revert_changes,
-                                                                &multi_buffer,
-                                                                &hunk,
-                                                                cx,
-                                                            );
-                                                        }
-                                                        if !revert_changes.is_empty() {
-                                                            editor.update(cx, |editor, cx| {
-                                                                editor.revert(revert_changes, cx)
-                                                            });
-                                                        }
+                                                        editor.update(cx, |editor, cx| {
+                                                            editor.revert_hunk(hunk.clone(), cx);
+                                                        });
                                                    }
                                                }),
                                        )
@@ -754,13 +866,13 @@ impl Editor {
    }

    pub(super) fn clear_expanded_diff_hunks(&mut self, cx: &mut ViewContext<'_, Editor>) -> bool {
-        if self.expanded_hunks.expand_all {
+        if self.diff_map.expand_all {
            return false;
        }
-        self.expanded_hunks.hunk_update_tasks.clear();
+        self.diff_map.hunk_update_tasks.clear();
        self.clear_row_highlights::<DiffRowHighlight>();
        let to_remove = self
-            .expanded_hunks
+            .diff_map
            .hunks
            .drain(..)
            .flat_map(|expanded_hunk| expanded_hunk.blocks.into_iter())
@@ -774,48 +886,39 @@ impl Editor {
    }

    pub(super) fn sync_expanded_diff_hunks(
-        &mut self,
-        buffer: Model<Buffer>,
+        diff_map: &mut DiffMap,
+        buffer_id: BufferId,
        cx: &mut ViewContext<'_, Self>,
    ) {
-        let buffer_id = buffer.read(cx).remote_id();
-        let buffer_diff_base_version = buffer.read(cx).diff_base_version();
-        self.expanded_hunks
-            .hunk_update_tasks
-            .remove(&Some(buffer_id));
-        let diff_base_buffer = self.current_diff_base_buffer(&buffer, cx);
+        let diff_base_state = diff_map.diff_bases.get_mut(&buffer_id);
+        let mut diff_base_buffer = None;
+        let mut diff_base_buffer_unchanged = true;
+        if let Some(diff_base_state) = diff_base_state {
+            diff_base_state.change_set.update(cx, |change_set, _| {
+                if diff_base_state.last_version != Some(change_set.base_text_version) {
+                    diff_base_state.last_version = Some(change_set.base_text_version);
+                    diff_base_buffer_unchanged = false;
+                }
+                diff_base_buffer = change_set.base_text.clone();
+            })
+        }
+
+        diff_map.hunk_update_tasks.remove(&Some(buffer_id));
+
        let new_sync_task = cx.spawn(move |editor, mut cx| async move {
-            let diff_base_buffer_unchanged = diff_base_buffer.is_some();
-            let Ok(diff_base_buffer) =
-                cx.update(|cx| diff_base_buffer.or_else(|| create_diff_base_buffer(&buffer, cx)))
-            else {
-                return;
-            };
            editor
                .update(&mut cx, |editor, cx| {
-                    if let Some(diff_base_buffer) = &diff_base_buffer {
-                        editor.expanded_hunks.diff_base.insert(
-                            buffer_id,
-                            DiffBaseBuffer {
-                                buffer: diff_base_buffer.clone(),
-                                diff_base_version: buffer_diff_base_version,
-                            },
-                        );
-                    }
-
                    let snapshot = editor.snapshot(cx);
                    let mut recalculated_hunks = snapshot
-                        .buffer_snapshot
-                        .git_diff_hunks_in_range(MultiBufferRow::MIN..MultiBufferRow::MAX)
+                        .diff_map
+                        .diff_hunks(&snapshot.buffer_snapshot)
                        .filter(|hunk| hunk.buffer_id == buffer_id)
                        .fuse()
                        .peekable();
-                    let mut highlights_to_remove =
-                        Vec::with_capacity(editor.expanded_hunks.hunks.len());
+                    let mut highlights_to_remove = Vec::with_capacity(editor.diff_map.hunks.len());
                    let mut blocks_to_remove = HashSet::default();
-                    let mut hunks_to_reexpand =
-                        Vec::with_capacity(editor.expanded_hunks.hunks.len());
-                    editor.expanded_hunks.hunks.retain_mut(|expanded_hunk| {
+                    let mut hunks_to_reexpand = Vec::with_capacity(editor.diff_map.hunks.len());
+                    editor.diff_map.hunks.retain_mut(|expanded_hunk| {
                        if expanded_hunk.hunk_range.start.buffer_id != Some(buffer_id) {
                            return true;
                        };
@@ -865,7 +968,7 @@ impl Editor {
                                            > hunk_display_range.end
                                        {
                                            recalculated_hunks.next();
-                                            if editor.expanded_hunks.expand_all {
+                                            if editor.diff_map.expand_all {
                                                hunks_to_reexpand.push(HoveredHunk {
                                                    status,
                                                    multi_buffer_range,
@@ -908,7 +1011,7 @@ impl Editor {
                        retain
                    });

-                    if editor.expanded_hunks.expand_all {
+                    if editor.diff_map.expand_all {
                        for hunk in recalculated_hunks {
                            match diff_hunk_to_display(&hunk, &snapshot) {
                                DisplayDiffHunk::Folded { .. } => {}
@@ -926,6 +1029,8 @@ impl Editor {
                                }
                            }
                        }
+                    } else {
+                        drop(recalculated_hunks);
                    }

                    editor.remove_highlighted_rows::<DiffRowHighlight>(highlights_to_remove, cx);
@@ -940,32 +1045,12 @@ impl Editor {
                .ok();
        });

-        self.expanded_hunks.hunk_update_tasks.insert(
+        diff_map.hunk_update_tasks.insert(
            Some(buffer_id),
            cx.background_executor().spawn(new_sync_task),
        );
    }

-    fn current_diff_base_buffer(
-        &mut self,
-        buffer: &Model<Buffer>,
-        cx: &mut AppContext,
-    ) -> Option<Model<Buffer>> {
-        buffer.update(cx, |buffer, _| {
-            match self.expanded_hunks.diff_base.entry(buffer.remote_id()) {
-                hash_map::Entry::Occupied(o) => {
-                    if o.get().diff_base_version != buffer.diff_base_version() {
-                        o.remove();
-                        None
-                    } else {
-                        Some(o.get().buffer.clone())
-                    }
-                }
-                hash_map::Entry::Vacant(_) => None,
-            }
-        })
-    }
-
    fn go_to_subsequent_hunk(&mut self, position: Anchor, cx: &mut ViewContext<Self>) {
        let snapshot = self.snapshot(cx);
        let position = position.to_point(&snapshot.buffer_snapshot);
@@ -1012,7 +1097,7 @@ impl Editor {
    }
 }

-fn to_diff_hunk(
+pub(crate) fn to_diff_hunk(
    hovered_hunk: &HoveredHunk,
    multi_buffer_snapshot: &MultiBufferSnapshot,
 ) -> Option<MultiBufferDiffHunk> {
@@ -1034,24 +1119,6 @@ fn to_diff_hunk(
    })
 }

-fn create_diff_base_buffer(buffer: &Model<Buffer>, cx: &mut AppContext) -> Option<Model<Buffer>> {
-    buffer
-        .update(cx, |buffer, _| {
-            let language = buffer.language().cloned();
-            let diff_base = buffer.diff_base()?.clone();
-            Some((buffer.line_ending(), diff_base, language))
-        })
-        .map(|(line_ending, diff_base, language)| {
-            cx.new_model(|cx| {
-                let buffer = Buffer::local_normalized(diff_base, line_ending, cx);
-                match language {
-                    Some(language) => buffer.with_language(language, cx),
-                    None => buffer,
-                }
-            })
-        })
-}
-
 fn added_hunk_color(cx: &AppContext) -> Hsla {
    let mut created_color = cx.theme().status().git().created;
    created_color.fade_out(0.7);
@@ -1109,51 +1176,27 @@ fn editor_with_deleted_text(
                });
            })]);

-        let original_multi_buffer_range = hunk.multi_buffer_range.clone();
-        let diff_base_range = hunk.diff_base_byte_range.clone();
        editor
            .register_action::<RevertSelectedHunks>({
+                let hunk = hunk.clone();
                let parent_editor = parent_editor.clone();
                move |_, cx| {
                    parent_editor
-                        .update(cx, |editor, cx| {
-                            let Some((buffer, original_text)) =
-                                editor.buffer().update(cx, |buffer, cx| {
-                                    let (_, buffer, _) = buffer.excerpt_containing(
-                                        original_multi_buffer_range.start,
-                                        cx,
-                                    )?;
-                                    let original_text =
-                                        buffer.read(cx).diff_base()?.slice(diff_base_range.clone());
-                                    Some((buffer, Arc::from(original_text.to_string())))
-                                })
-                            else {
-                                return;
-                            };
-                            buffer.update(cx, |buffer, cx| {
-                                buffer.edit(
-                                    Some((
-                                        original_multi_buffer_range.start.text_anchor
-                                            ..original_multi_buffer_range.end.text_anchor,
-                                        original_text,
-                                    )),
-                                    None,
-                                    cx,
-                                )
-                            });
-                        })
+                        .update(cx, |editor, cx| editor.revert_hunk(hunk.clone(), cx))
                        .ok();
                }
            })
            .detach();
-        let hunk = hunk.clone();
        editor
-            .register_action::<ToggleHunkDiff>(move |_, cx| {
-                parent_editor
-                    .update(cx, |editor, cx| {
-                        editor.toggle_hovered_hunk(&hunk, cx);
-                    })
-                    .ok();
+            .register_action::<ToggleHunkDiff>({
+                let hunk = hunk.clone();
+                move |_, cx| {
+                    parent_editor
+                        .update(cx, |editor, cx| {
+                            editor.toggle_hovered_hunk(&hunk, cx);
+                        })
+                        .ok();
+                }
            })
            .detach();
        editor
@@ -1263,78 +1306,57 @@ mod tests {
        let project = Project::test(fs, [], cx).await;

        // buffer has two modified hunks with two rows each
-        let buffer_1 = project.update(cx, |project, cx| {
-            project.create_local_buffer(
-                "
-                        1.zero
-                        1.ONE
-                        1.TWO
-                        1.three
-                        1.FOUR
-                        1.FIVE
-                        1.six
-                    "
-                .unindent()
-                .as_str(),
-                None,
-                cx,
-            )
-        });
-        buffer_1.update(cx, |buffer, cx| {
-            buffer.set_diff_base(
-                Some(
-                    "
-                        1.zero
-                        1.one
-                        1.two
-                        1.three
-                        1.four
-                        1.five
-                        1.six
-                    "
-                    .unindent(),
-                ),
-                cx,
-            );
-        });
+        let diff_base_1 = "
+            1.zero
+            1.one
+            1.two
+            1.three
+            1.four
+            1.five
+            1.six
+        "
+        .unindent();
+
+        let text_1 = "
+            1.zero
+            1.ONE
+            1.TWO
+            1.three
+            1.FOUR
+            1.FIVE
+            1.six
+        "
+        .unindent();

        // buffer has a deletion hunk and an insertion hunk
-        let buffer_2 = project.update(cx, |project, cx| {
-            project.create_local_buffer(
-                "
-                        2.zero
-                        2.one
-                        2.two
-                        2.three
-                        2.four
-                        2.five
-                        2.six
-                    "
-                .unindent()
-                .as_str(),
-                None,
-                cx,
-            )
-        });
-        buffer_2.update(cx, |buffer, cx| {
-            buffer.set_diff_base(
-                Some(
-                    "
-                        2.zero
-                        2.one
-                        2.one-and-a-half
-                        2.two
-                        2.three
-                        2.four
-                        2.six
-                    "
-                    .unindent(),
-                ),
-                cx,
-            );
-        });
+        let diff_base_2 = "
+            2.zero
+            2.one
+            2.one-and-a-half
+            2.two
+            2.three
+            2.four
+            2.six
+        "
+        .unindent();

-        cx.background_executor.run_until_parked();
+        let text_2 = "
+            2.zero
+            2.one
+            2.two
+            2.three
+            2.four
+            2.five
+            2.six
+        "
+        .unindent();
+
+        let buffer_1 = project.update(cx, |project, cx| {
+            project.create_local_buffer(text_1.as_str(), None, cx)
+        });
+        let buffer_2 = project.update(cx, |project, cx| {
+            project.create_local_buffer(text_2.as_str(), None, cx)
+        });

        let multibuffer = cx.new_model(|cx| {
            let mut multibuffer = MultiBuffer::new(ReadWrite);
@@ -1383,10 +1405,30 @@ mod tests {
            multibuffer
        });

-        let snapshot = multibuffer.read_with(cx, |b, cx| b.snapshot(cx));
+        let editor = cx.add_window(|cx| Editor::for_multibuffer(multibuffer, None, false, cx));
+        editor
+            .update(cx, |editor, cx| {
+                for (buffer, diff_base) in [
+                    (buffer_1.clone(), diff_base_1),
+                    (buffer_2.clone(), diff_base_2),
+                ] {
+                    let change_set = cx.new_model(|cx| {
+                        BufferChangeSet::new_with_base_text(
+                            diff_base.to_string(),
+                            buffer.read(cx).text_snapshot(),
+                            cx,
+                        )
+                    });
+                    editor.diff_map.add_change_set(change_set, cx)
+                }
+            })
+            .unwrap();
+        cx.background_executor.run_until_parked();
+
+        let snapshot = editor.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();

        assert_eq!(
-            snapshot.text(),
+            snapshot.buffer_snapshot.text(),
            "
                1.zero
                1.ONE
@@ -1429,7 +1471,8 @@ mod tests {

        assert_eq!(
            snapshot
-                .git_diff_hunks_in_range(MultiBufferRow(0)..MultiBufferRow(12))
+                .diff_map
+                .diff_hunks_in_range(Point::zero()..Point::new(12, 0), &snapshot.buffer_snapshot)
                .map(|hunk| (hunk_status(&hunk), hunk.row_range))
                .collect::<Vec<_>>(),
            &expected,
@@ -1437,7 +1480,11 @@ mod tests {

        assert_eq!(
            snapshot
-                .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(12))
+                .diff_map
+                .diff_hunks_in_range_rev(
+                    Point::zero()..Point::new(12, 0),
+                    &snapshot.buffer_snapshot
+                )
                .map(|hunk| (hunk_status(&hunk), hunk.row_range))
                .collect::<Vec<_>>(),
            expected
--- a/crates/editor/src/inlay_hint_cache.rs
+++ b/crates/editor/src/inlay_hint_cache.rs
@@ -1258,6 +1258,7 @@ pub mod tests {

    use crate::{
        scroll::{scroll_amount::ScrollAmount, Autoscroll},
+        test::editor_lsp_test_context::rust_lang,
        ExcerptRange,
    };
    use futures::StreamExt;
@@ -2274,7 +2275,7 @@ pub mod tests {
        let project = Project::test(fs, ["/a".as_ref()], cx).await;

        let language_registry = project.read_with(cx, |project, _| project.languages().clone());
-        language_registry.add(crate::editor_tests::rust_lang());
+        language_registry.add(rust_lang());
        let mut fake_servers = language_registry.register_fake_lsp(
            "Rust",
            FakeLspAdapter {
@@ -2570,7 +2571,7 @@ pub mod tests {
        let project = Project::test(fs, ["/a".as_ref()], cx).await;

        let language_registry = project.read_with(cx, |project, _| project.languages().clone());
-        let language = crate::editor_tests::rust_lang();
+        let language = rust_lang();
        language_registry.add(language);
        let mut fake_servers = language_registry.register_fake_lsp(
            "Rust",
@@ -2922,7 +2923,7 @@ pub mod tests {
        let project = Project::test(fs, ["/a".as_ref()], cx).await;

        let language_registry = project.read_with(cx, |project, _| project.languages().clone());
-        language_registry.add(crate::editor_tests::rust_lang());
+        language_registry.add(rust_lang());
        let mut fake_servers = language_registry.register_fake_lsp(
            "Rust",
            FakeLspAdapter {
@@ -3153,7 +3154,7 @@ pub mod tests {
        let project = Project::test(fs, ["/a".as_ref()], cx).await;

        let language_registry = project.read_with(cx, |project, _| project.languages().clone());
-        language_registry.add(crate::editor_tests::rust_lang());
+        language_registry.add(rust_lang());
        let mut fake_servers = language_registry.register_fake_lsp(
            "Rust",
            FakeLspAdapter {
@@ -3396,7 +3397,7 @@ pub mod tests {
        let project = Project::test(fs, ["/a".as_ref()], cx).await;

        let language_registry = project.read_with(cx, |project, _| project.languages().clone());
-        language_registry.add(crate::editor_tests::rust_lang());
+        language_registry.add(rust_lang());
        let mut fake_servers = language_registry.register_fake_lsp(
            "Rust",
            FakeLspAdapter {
--- 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>`