Bump to 0.135.2 for @ConradIrwin

Release Notes:

- N/A

.github/pull_request_template.md

@@ -6,6 +6,8 @@ Release Notes:
 
 Optionally, include screenshots / media showcasing your addition that can be included in the release notes.
 
-**or**
+### Or...
+
+Release Notes:
 
 - N/A

.github/workflows/bump_patch_version.yml

@@ -0,0 +1,49 @@
+name: bump_patch_version
+
+on:
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: "Branch name to run on"
+        required: true
+
+concurrency:
+  # Allow only one workflow per any non-`main` branch.
+  group: ${{ github.workflow }}-${{ inputs.branch }}
+  cancel-in-progress: true
+
+jobs:
+  bump_patch_version:
+    runs-on:
+      - self-hosted
+      - test
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.inputs.branch }}
+          ssh-key: ${{ secrets.ZED_BOT_DEPLOY_KEY }}
+
+      - name: Bump Patch Version
+        run: |
+          set -eux
+
+          channel=$(cat crates/zed/RELEASE_CHANNEL)
+
+          tag_suffix=""
+          case $channel in
+            stable)
+              ;;
+            preview)
+              tag_suffix="-pre"
+              ;;
+            *)
+              echo "this must be run on either of stable|preview release branches" >&2
+              exit 1
+              ;;
+          esac
+          which cargo-set-version > /dev/null || cargo install cargo-edit --features vendored-openssl
+          output=$(cargo set-version -p zed --bump patch 2>&1 | sed 's/.* //')
+          git commit -am "Bump to $output for @$GITHUB_ACTOR" --author "Zed Bot <hi@zed.dev>"
+          git tag v${output}${tag_suffix}
+          git push origin HEAD v${output}${tag_suffix}

.github/workflows/ci.yml

@@ -173,6 +173,11 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v4
         with:
+          # We need to fetch more than one commit so that `script/draft-release-notes`
+          # is able to diff between the current and previous tag.
+          #
+          # 25 was chosen arbitrarily.
+          fetch-depth: 25
           clean: false
           submodules: "recursive"
 
@@ -205,6 +210,9 @@ jobs:
             echo "invalid release tag ${GITHUB_REF_NAME}. expected ${expected_tag_name}"
             exit 1
           fi
+          mkdir -p target/
+          # Ignore any errors that occur while drafting release notes to not fail the build.
+          script/draft-release-notes "$version" "$channel" > target/release-notes.md || true
 
       - name: Generate license file
         run: script/generate-licenses
@@ -248,19 +256,17 @@ jobs:
             target/aarch64-apple-darwin/release/Zed-aarch64.dmg
             target/x86_64-apple-darwin/release/Zed-x86_64.dmg
             target/release/Zed.dmg
-          body: ""
+          body_file: target/release-notes.md
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-  bundle-deb:
-    name: Create a *.deb Linux bundle
+  bundle-linux:
+    name: Create a Linux bundle
     runs-on: ubuntu-22.04 # keep the version fixed to avoid libc and dynamic linked library issues
     if: ${{ startsWith(github.ref, 'refs/tags/v') || contains(github.event.pull_request.labels.*.name, 'run-bundling') }}
     needs: [linux_tests]
     env:
       ZED_CLIENT_CHECKSUM_SEED: ${{ secrets.ZED_CLIENT_CHECKSUM_SEED }}
-      DIGITALOCEAN_SPACES_ACCESS_KEY: ${{ secrets.DIGITALOCEAN_SPACES_ACCESS_KEY }}
-      DIGITALOCEAN_SPACES_SECRET_KEY: ${{ secrets.DIGITALOCEAN_SPACES_SECRET_KEY }}
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
@@ -304,28 +310,26 @@ jobs:
             exit 1
           fi
 
-      # TODO linux : Find a way to add licenses to the final bundle
-      # - name: Generate license file
-      #   run: script/generate-licenses
+      - name: Generate license file
+        run: script/generate-licenses
 
-      - name: Create Linux *.deb bundle
+      - name: Create and upload Linux .tar.gz bundle
         run: script/bundle-linux
 
-      - name: Upload app bundle to workflow run if main branch or specific label
+      - name: Upload Linux bundle to workflow run if main branch or specific label
         uses: actions/upload-artifact@v4
         if: ${{ github.ref == 'refs/heads/main' }} || contains(github.event.pull_request.labels.*.name, 'run-bundling') }}
         with:
-          name: Zed_${{ github.event.pull_request.head.sha || github.sha }}.deb
-          path: target/release/*.deb
+          name: zed-${{ github.event.pull_request.head.sha || github.sha }}-x86_64-unknown-linux-gnu.tar.gz
+          path: zed-*.tar.gz
 
-      # TODO linux : make it stable enough to be uploaded as a release
-      # - uses: softprops/action-gh-release@v1
-      #   name: Upload app bundle to release
-      #   if: ${{ env.RELEASE_CHANNEL == 'preview' || env.RELEASE_CHANNEL == 'stable' }}
-      #   with:
-      #     draft: true
-      #     prerelease: ${{ env.RELEASE_CHANNEL == 'preview' }}
-      #     files: target/release/Zed.dmg
-      #     body: ""
-      #   env:
-      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Upload app bundle to release
+        uses: softprops/action-gh-release@v1
+        if: ${{ env.RELEASE_CHANNEL == 'preview' }}
+        with:
+          draft: true
+          prerelease: ${{ env.RELEASE_CHANNEL == 'preview' }}
+          files: target/release/zed-linux-x86_64.tar.gz
+          body: ""
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/danger.yml

@@ -32,4 +32,10 @@ jobs:
       - name: Run Danger
         run: pnpm run --dir script/danger danger ci
         env:
-          GITHUB_TOKEN: ${{ github.token }}
+          # This GitHub token is not used, but the value needs to be here to prevent
+          # Danger from throwing an error.
+          GITHUB_TOKEN: "not_a_real_token"
+          # All requests are instead proxied through an instance of
+          # https://github.com/maxdeviant/danger-proxy that allows Danger to securely
+          # authenticate with GitHub while still being able to run on PRs from forks.
+          DANGER_GITHUB_API_BASE_URL: "https://danger-proxy.fly.dev/github"

.github/workflows/deploy_docs.yml

@@ -0,0 +1,35 @@
+name: Deploy Docs
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy-docs:
+    name: Deploy Docs
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          clean: false
+
+      - name: Setup mdBook
+        uses: peaceiris/actions-mdbook@v2
+        with:
+          mdbook-version: "0.4.37"
+
+      - name: Build book
+        run: |
+          set -euo pipefail
+          mkdir -p target/deploy
+          mdbook build ./docs --dest-dir=../target/deploy/docs/
+
+      - name: Deploy
+        uses: cloudflare/wrangler-action@v3
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
+          command: pages deploy target/deploy --project-name=docs

.github/workflows/release_nightly.yml

@@ -94,7 +94,7 @@ jobs:
         run: script/upload-nightly macos
 
   bundle-deb:
-    name: Create a *.deb Linux bundle
+    name: Create a Linux *.tar.gz bundle
     if: github.repository_owner == 'zed-industries'
     runs-on: ubuntu-22.04 # keep the version fixed to avoid libc and dynamic linked library issues
     needs: tests
@@ -125,12 +125,11 @@ jobs:
           echo "Publishing version: ${version} on release channel nightly"
           echo "nightly" > crates/zed/RELEASE_CHANNEL
 
-      # TODO linux : find a way to add licenses to the final bundle
-      # - name: Generate license file
-      #   run: script/generate-licenses
+      - name: Generate license file
+        run: script/generate-licenses
 
-      - name: Create Linux *.deb bundle
+      - name: Create Linux .tar.gz bundle
         run: script/bundle-linux
 
       - name: Upload Zed Nightly
-        run: script/upload-nightly linux-deb
+        run: script/upload-nightly linux-targz

.gitignore

@@ -6,7 +6,7 @@
 /plugins/bin
 /script/node_modules
 /crates/theme/schemas/theme.json
-/crates/collab/.admins.json
+/crates/collab/seed.json
 /assets/*licenses.md
 **/venv
 .build

.zed/settings.json

@@ -21,5 +21,7 @@
       "formatter": "prettier"
     }
   },
-  "formatter": "auto"
+  "formatter": "auto",
+  "remove_trailing_whitespace_on_save": true,
+  "ensure_final_newline_on_save": true
 }

.zed/tasks.json

@@ -0,0 +1,12 @@
+[
+  {
+    "label": "clippy",
+    "command": "cargo",
+    "args": ["xtask", "clippy"]
+  },
+  {
+    "label": "assistant2",
+    "command": "cargo",
+    "args": ["run", "-p", "assistant2", "--example", "assistant_example"]
+  }
+]

CONTRIBUTING.md

@@ -2,8 +2,6 @@
 
 Thanks for your interest in contributing to Zed, the collaborative platform that is also a code editor!
 
-We want to avoid anyone spending time on a pull request that may not be accepted, so we suggest you discuss your ideas with the team and community before starting on major changes. Bug fixes, however, are almost always welcome.
-
 All activity in Zed forums is subject to our [Code of Conduct](https://zed.dev/docs/code-of-conduct). Additionally, contributors must sign our [Contributor License Agreement](https://zed.dev/cla) before their contributions can be merged.
 
 ## Contribution ideas
@@ -13,7 +11,7 @@ If you're looking for ideas about what to work on, check out:
 - Our [public roadmap](https://zed.dev/roadmap) contains a rough outline of our near-term priorities for Zed.
 - Our [top-ranking issues](https://github.com/zed-industries/zed/issues/5393) based on votes by the community.
 
-Outside of a handful of extremely popular languages and themes, we are generally not looking to extend Zed's language or theme support by directly building them into Zed. We really want to build a plugin system to handle making the editor extensible going forward. If you are passionate about shipping new languages or themes we suggest contributing to the extension system to help us get there faster.
+For adding themes or support for a new language to Zed, check out our [extension docs](https://github.com/zed-industries/extensions/blob/main/AUTHORING_EXTENSIONS.md).
 
 ## Proposing changes
 

Cargo.toml

@@ -4,6 +4,8 @@ members = [
     "crates/anthropic",
     "crates/assets",
     "crates/assistant",
+    "crates/assistant_tooling",
+    "crates/assistant2",
     "crates/audio",
     "crates/auto_update",
     "crates/breadcrumbs",
@@ -18,7 +20,6 @@ members = [
     "crates/command_palette",
     "crates/command_palette_hooks",
     "crates/copilot",
-    "crates/copilot_ui",
     "crates/db",
     "crates/diagnostics",
     "crates/editor",
@@ -34,11 +35,14 @@ members = [
     "crates/fsevent",
     "crates/fuzzy",
     "crates/git",
+    "crates/git_hosting_providers",
     "crates/go_to_line",
     "crates/google_ai",
     "crates/gpui",
     "crates/gpui_macros",
+    "crates/headless",
     "crates/image_viewer",
+    "crates/inline_completion_button",
     "crates/install_cli",
     "crates/journal",
     "crates/language",
@@ -66,12 +70,14 @@ members = [
     "crates/refineable",
     "crates/refineable/derive_refineable",
     "crates/release_channel",
+    "crates/dev_server_projects",
     "crates/rich_text",
     "crates/rope",
     "crates/rpc",
     "crates/task",
     "crates/tasks_ui",
     "crates/search",
+    "crates/semantic_index",
     "crates/semantic_version",
     "crates/settings",
     "crates/snippet",
@@ -81,6 +87,8 @@ members = [
     "crates/storybook",
     "crates/sum_tree",
     "crates/tab_switcher",
+    "crates/supermaven",
+    "crates/supermaven_api",
     "crates/terminal",
     "crates/terminal_view",
     "crates/text",
@@ -90,6 +98,7 @@ members = [
     "crates/telemetry_events",
     "crates/time_format",
     "crates/ui",
+    "crates/ui_text_field",
     "crates/util",
     "crates/vcs_menu",
     "crates/vim",
@@ -103,17 +112,25 @@ members = [
     "extensions/clojure",
     "extensions/csharp",
     "extensions/dart",
+    "extensions/deno",
+    "extensions/elixir",
+    "extensions/elm",
     "extensions/emmet",
     "extensions/erlang",
     "extensions/gleam",
+    "extensions/glsl",
     "extensions/haskell",
     "extensions/html",
+    "extensions/lua",
+    "extensions/ocaml",
     "extensions/php",
     "extensions/prisma",
     "extensions/purescript",
     "extensions/svelte",
+    "extensions/terraform",
     "extensions/toml",
     "extensions/uiua",
+    "extensions/vue",
     "extensions/zig",
 
     "tooling/xtask",
@@ -127,6 +144,8 @@ ai = { path = "crates/ai" }
 anthropic = { path = "crates/anthropic" }
 assets = { path = "crates/assets" }
 assistant = { path = "crates/assistant" }
+assistant2 = { path = "crates/assistant2" }
+assistant_tooling = { path = "crates/assistant_tooling" }
 audio = { path = "crates/audio" }
 auto_update = { path = "crates/auto_update" }
 base64 = "0.13"
@@ -143,7 +162,6 @@ color = { path = "crates/color" }
 command_palette = { path = "crates/command_palette" }
 command_palette_hooks = { path = "crates/command_palette_hooks" }
 copilot = { path = "crates/copilot" }
-copilot_ui = { path = "crates/copilot_ui" }
 db = { path = "crates/db" }
 diagnostics = { path = "crates/diagnostics" }
 editor = { path = "crates/editor" }
@@ -157,12 +175,15 @@ fs = { path = "crates/fs" }
 fsevent = { path = "crates/fsevent" }
 fuzzy = { path = "crates/fuzzy" }
 git = { path = "crates/git" }
+git_hosting_providers = { path = "crates/git_hosting_providers" }
 go_to_line = { path = "crates/go_to_line" }
 google_ai = { path = "crates/google_ai" }
 gpui = { path = "crates/gpui" }
 gpui_macros = { path = "crates/gpui_macros" }
+headless = { path = "crates/headless" }
 install_cli = { path = "crates/install_cli" }
 image_viewer = { path = "crates/image_viewer" }
+inline_completion_button = { path = "crates/inline_completion_button" }
 journal = { path = "crates/journal" }
 language = { path = "crates/language" }
 language_selector = { path = "crates/language_selector" }
@@ -190,17 +211,21 @@ project_symbols = { path = "crates/project_symbols" }
 quick_action_bar = { path = "crates/quick_action_bar" }
 recent_projects = { path = "crates/recent_projects" }
 release_channel = { path = "crates/release_channel" }
+dev_server_projects = { path = "crates/dev_server_projects" }
 rich_text = { path = "crates/rich_text" }
 rope = { path = "crates/rope" }
 rpc = { path = "crates/rpc" }
 task = { path = "crates/task" }
 tasks_ui = { path = "crates/tasks_ui" }
 search = { path = "crates/search" }
+semantic_index = { path = "crates/semantic_index" }
 semantic_version = { path = "crates/semantic_version" }
 settings = { path = "crates/settings" }
 snippet = { path = "crates/snippet" }
 sqlez = { path = "crates/sqlez" }
 sqlez_macros = { path = "crates/sqlez_macros" }
+supermaven = { path = "crates/supermaven" }
+supermaven_api = { path = "crates/supermaven_api"}
 story = { path = "crates/story" }
 storybook = { path = "crates/storybook" }
 sum_tree = { path = "crates/sum_tree" }
@@ -214,6 +239,7 @@ theme_selector = { path = "crates/theme_selector" }
 telemetry_events = { path = "crates/telemetry_events" }
 time_format = { path = "crates/time_format" }
 ui = { path = "crates/ui" }
+ui_text_field = { path = "crates/ui_text_field" }
 util = { path = "crates/util" }
 vcs_menu = { path = "crates/vcs_menu" }
 vim = { path = "crates/vim" }
@@ -230,23 +256,27 @@ async-recursion = "1.0.0"
 async-tar = "0.4.2"
 async-trait = "0.1"
 bitflags = "2.4.2"
-blade-graphics = { git = "https://github.com/kvark/blade", rev = "810ec594358aafea29a4a3d8ab601d25292b2ce4" }
-blade-macros = { git = "https://github.com/kvark/blade", rev = "810ec594358aafea29a4a3d8ab601d25292b2ce4" }
-blade-rwh = { package = "raw-window-handle", version = "0.5" }
+blade-graphics = { git = "https://github.com/kvark/blade", rev = "f5766863de9dcc092e90fdbbc5e0007a99e7f9bf" }
+blade-macros = { git = "https://github.com/kvark/blade", rev = "f5766863de9dcc092e90fdbbc5e0007a99e7f9bf" }
 cap-std = "3.0"
 chrono = { version = "0.4", features = ["serde"] }
 clap = { version = "4.4", features = ["derive"] }
 clickhouse = { version = "0.11.6" }
 ctor = "0.2.6"
+ctrlc = "3.4.4"
 core-foundation = { version = "0.9.3" }
 core-foundation-sys = "0.8.6"
 derive_more = "0.99.17"
 emojis = "0.6.1"
 env_logger = "0.9"
 futures = "0.3"
+futures-batch = "0.6.1"
 futures-lite = "1.13"
-git2 = { version = "0.15", default-features = false }
+git2 = { version = "0.18", default-features = false }
 globset = "0.4"
+heed = { git = "https://github.com/meilisearch/heed", rev = "036ac23f73a021894974b9adc815bc95b3e0482a", features = [
+    "read-txn-no-tls",
+] }
 hex = "0.4.3"
 ignore = "0.4.22"
 indoc = "1"
@@ -259,6 +289,8 @@ itertools = "0.11.0"
 lazy_static = "1.4.0"
 linkify = "0.10.0"
 log = { version = "0.4.16", features = ["kv_unstable_serde"] }
+nanoid = "0.4"
+nix = "0.28"
 ordered-float = "2.1.1"
 palette = { version = "0.7.5", default-features = false, features = ["std"] }
 parking_lot = "0.12.1"
@@ -310,37 +342,28 @@ tree-sitter-c = "0.20.1"
 tree-sitter-cpp = { git = "https://github.com/tree-sitter/tree-sitter-cpp", rev = "f44509141e7e483323d2ec178f2d2e6c0fc041c1" }
 tree-sitter-css = { git = "https://github.com/tree-sitter/tree-sitter-css", rev = "769203d0f9abe1a9a691ac2b9fe4bb4397a73c51" }
 tree-sitter-elixir = { git = "https://github.com/elixir-lang/tree-sitter-elixir", rev = "a2861e88a730287a60c11ea9299c033c7d076e30" }
-tree-sitter-elm = { git = "https://github.com/elm-tooling/tree-sitter-elm", rev = "692c50c0b961364c40299e73c1306aecb5d20f40" }
 tree-sitter-embedded-template = "0.20.0"
-tree-sitter-glsl = { git = "https://github.com/theHamsta/tree-sitter-glsl", rev = "2a56fb7bc8bb03a1892b4741279dd0a8758b7fb3" }
 tree-sitter-go = { git = "https://github.com/tree-sitter/tree-sitter-go", rev = "aeb2f33b366fd78d5789ff104956ce23508b85db" }
 tree-sitter-gomod = { git = "https://github.com/camdencheek/tree-sitter-go-mod" }
 tree-sitter-gowork = { git = "https://github.com/d1y/tree-sitter-go-work" }
-tree-sitter-hcl = { git = "https://github.com/MichaHoffmann/tree-sitter-hcl", rev = "v1.1.0" }
 rustc-demangle = "0.1.23"
 tree-sitter-heex = { git = "https://github.com/phoenixframework/tree-sitter-heex", rev = "2e1348c3cf2c9323e87c2744796cf3f3868aa82a" }
 tree-sitter-html = "0.19.0"
-tree-sitter-jsdoc = { git = "https://github.com/tree-sitter/tree-sitter-jsdoc", ref = "6a6cf9e7341af32d8e2b2e24a37fbfebefc3dc55" }
+tree-sitter-jsdoc = { git = "https://github.com/tree-sitter/tree-sitter-jsdoc", rev = "6a6cf9e7341af32d8e2b2e24a37fbfebefc3dc55" }
 tree-sitter-json = { git = "https://github.com/tree-sitter/tree-sitter-json", rev = "40a81c01a40ac48744e0c8ccabbaba1920441199" }
-tree-sitter-lua = "0.0.14"
 tree-sitter-markdown = { git = "https://github.com/MDeiml/tree-sitter-markdown", rev = "330ecab87a3e3a7211ac69bbadc19eabecdb1cca" }
-tree-sitter-nix = { git = "https://github.com/nix-community/tree-sitter-nix", rev = "66e3e9ce9180ae08fc57372061006ef83f0abde7" }
-tree-sitter-nu = { git = "https://github.com/nushell/tree-sitter-nu", rev = "7dd29f9616822e5fc259f5b4ae6c4ded9a71a132" }
-tree-sitter-ocaml = { git = "https://github.com/tree-sitter/tree-sitter-ocaml", rev = "4abfdc1c7af2c6c77a370aee974627be1c285b3b" }
 tree-sitter-proto = { git = "https://github.com/rewinfrey/tree-sitter-proto", rev = "36d54f288aee112f13a67b550ad32634d0c2cb52" }
 tree-sitter-python = "0.20.2"
-tree-sitter-racket = { git = "https://github.com/zed-industries/tree-sitter-racket", rev = "eb010cf2c674c6fd9a6316a84e28ef90190fe51a" }
 tree-sitter-regex = "0.20.0"
 tree-sitter-ruby = "0.20.0"
 tree-sitter-rust = "0.20.3"
-tree-sitter-scheme = { git = "https://github.com/6cdh/tree-sitter-scheme", rev = "af0fd1fa452cb2562dc7b5c8a8c55551c39273b9" }
 tree-sitter-typescript = { git = "https://github.com/tree-sitter/tree-sitter-typescript", rev = "5d20856f34315b068c41edaee2ac8a100081d259" }
-tree-sitter-vue = { git = "https://github.com/zed-industries/tree-sitter-vue", rev = "6608d9d60c386f19d80af7d8132322fa11199c42" }
 tree-sitter-yaml = { git = "https://github.com/zed-industries/tree-sitter-yaml", rev = "f545a41f57502e1b5ddf2a6668896c1b0620f930" }
 unindent = "0.1.7"
 unicase = "2.6"
+unicode-segmentation = "1.10"
 url = "2.2"
-uuid = { version = "1.1.2", features = ["v4"] }
+uuid = { version = "1.1.2", features = ["v4", "v5"] }
 wasmparser = "0.201"
 wasm-encoder = "0.201"
 wasmtime = { version = "19.0.0", default-features = false, features = [
@@ -359,10 +382,16 @@ sys-locale = "0.3.1"
 version = "0.53.0"
 features = [
     "implement",
+    "Foundation_Numerics",
     "Wdk_System_SystemServices",
     "Win32_Globalization",
+    "Win32_Graphics_Direct2D",
+    "Win32_Graphics_Direct2D_Common",
     "Win32_Graphics_DirectWrite",
+    "Win32_Graphics_Dxgi_Common",
     "Win32_Graphics_Gdi",
+    "Win32_Graphics_Imaging",
+    "Win32_Graphics_Imaging_D2D",
     "Win32_Media",
     "Win32_Security",
     "Win32_Security_Credentials",
@@ -386,7 +415,7 @@ features = [
 ]
 
 [patch.crates-io]
-tree-sitter = { git = "https://github.com/tree-sitter/tree-sitter", rev = "7f21c3b98c0749ac192da67a0d65dfe3eabc4a63" }
+tree-sitter = { git = "https://github.com/tree-sitter/tree-sitter", rev = "7b4894ba2ae81b988846676f54c0988d4027ef4f" }
 # Workaround for a broken nightly build of gpui: See #7644 and revisit once 0.5.3 is released.
 pathfinder_simd = { git = "https://github.com/servo/pathfinder.git", rev = "30419d07660dc11a21e42ef4a7fa329600cff152" }
 

Dockerfile

@@ -1,6 +1,6 @@
 # syntax = docker/dockerfile:1.2
 
-FROM rust:1.77-bookworm as builder
+FROM rust:1.78-bookworm as builder
 WORKDIR app
 COPY . .
 

Procfile

@@ -1,3 +1,3 @@
-collab: RUST_LOG=${RUST_LOG:-warn,tower_http=info,collab=info} cargo run --package=collab serve
+collab: RUST_LOG=${RUST_LOG:-info} cargo run --package=collab serve
 livekit: livekit-server --dev
 blob_store: ./script/run-local-minio

README.md

@@ -17,27 +17,28 @@ Support for additional platforms is on our [roadmap](https://zed.dev/roadmap):
 For macOS users, you can also install Zed using [Homebrew](https://brew.sh/):
 
 ```sh
-brew install zed
+brew install --cask zed
 ```
 
 Alternatively, to install the Preview release:
 
 ```sh
-brew tap homebrew/cask-versions
-brew install zed-preview
+brew install --cask zed@preview
 ```
 
 ## Developing Zed
 
-- [Building Zed for macOS](./docs/src/developing_zed__building_zed_macos.md)
-- [Building Zed for Linux](./docs/src/developing_zed__building_zed_linux.md)
-- [Building Zed for Windows](./docs/src/developing_zed__building_zed_windows.md)
-- [Running Collaboration Locally](./docs/src/developing_zed__local_collaboration.md)
+- [Building Zed for macOS](./docs/src/development/macos.md)
+- [Building Zed for Linux](./docs/src/development/linux.md)
+- [Building Zed for Windows](./docs/src/development/windows.md)
+- [Running Collaboration Locally](./docs/src/development/local-collaboration.md)
 
 ## Contributing
 
 See [CONTRIBUTING.md](./CONTRIBUTING.md) for ways you can contribute to Zed.
 
+Also... we're hiring! Check out our [jobs](https://zed.dev/jobs) page for open roles.
+
 ## Licensing
 
 License information for third party dependencies must be correctly provided for CI to pass.

assets/contexts/system.zmd

@@ -1,6 +0,0 @@
-User input begins on a line starting with /.
-Don't apologize ever.
-Never say "I apologize".
-Use simple language and don't flatter the users.
-Keep it short.
-Risk being rude.

assets/icons/LICENSES

@@ -0,0 +1,9 @@
+Lucide License
+
+ISC License
+
+Copyright (c) for portions of Lucide are held by Cole Bemis 2013-2022 as part of Feather (MIT). All other copyright (c) for Lucide are held by Lucide Contributors 2022.
+
+Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

assets/icons/code.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-code-xml"><path d="m18 16 4-4-4-4"/><path d="m6 8-4 4 4 4"/><path d="m14.5 4-5 16"/></svg>

assets/icons/expand_vertical.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-unfold-vertical"><path d="M12 22v-6"/><path d="M12 8V2"/><path d="M4 12H2"/><path d="M10 12H8"/><path d="M16 12h-2"/><path d="M22 12h-2"/><path d="m15 19-3 3-3-3"/><path d="m15 5-3-3-3 3"/></svg>

assets/icons/file_icons/c.svg

@@ -0,0 +1,10 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_1791_43)">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M13.8473 4.79901C13.7531 4.63587 13.6232 4.4934 13.4803 4.4109L8.51958 1.54683C8.23382 1.38181 7.76613 1.38181 7.48037 1.54683L2.51961 4.4109C2.2338 4.57587 2 4.98089 2 5.31089V11.0391C2 11.2041 2.05864 11.3879 2.15283 11.551C2.24699 11.7141 2.37691 11.8566 2.51977 11.939L7.48053 14.8031C7.7663 14.9681 8.23398 14.9681 8.51974 14.8031L13.4805 11.939C13.6234 11.8565 13.7532 11.714 13.8473 11.5509C13.9415 11.3878 14 11.204 14 11.039V5.31085C14 5.14583 13.9415 4.96211 13.8473 4.79901ZM4 8.175C4 10.3806 5.79438 12.175 7.99998 12.175C9.42327 12.175 10.7506 11.4091 11.464 10.1761L9.73295 9.17441C9.37586 9.79162 8.71182 10.175 7.99998 10.175C6.89716 10.175 5.99999 9.27778 5.99999 8.175C5.99999 7.07218 6.89716 6.17501 7.99998 6.17501C8.71174 6.17501 9.37578 6.55838 9.73284 7.17548L11.4639 6.17375C10.7505 4.9409 9.42319 4.17502 7.99998 4.17502C5.79438 4.17502 4 5.9694 4 8.175Z" fill="black"/>
+</g>
+<defs>
+<clipPath id="clip0_1791_43">
+<rect width="11.9999" height="13.5039" fill="white" transform="translate(2 1.42307)"/>
+</clipPath>
+</defs>
+</svg>

assets/icons/file_icons/cpp.svg

@@ -0,0 +1,10 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_1791_60)">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M13.4803 4.4109C13.6232 4.4934 13.7531 4.63587 13.8473 4.79901C13.9415 4.96211 14 5.14583 14 5.31085V5.78958H12.8036V7.50745H11.0857V8.99892H12.8036V10.7168H14V11.039C14 11.204 13.9415 11.3878 13.8473 11.5509C13.7532 11.714 13.6234 11.8565 13.4805 11.939L8.51974 14.8031C8.23398 14.9681 7.7663 14.9681 7.48053 14.8031L2.51977 11.939C2.37691 11.8566 2.24699 11.7141 2.15283 11.551C2.05864 11.3879 2 11.2041 2 11.0391V5.31089C2 4.98089 2.2338 4.57587 2.51961 4.4109L7.48037 1.54683C7.76613 1.38181 8.23382 1.38181 8.51958 1.54683L13.4803 4.4109ZM7.99998 12.175C5.79438 12.175 4 10.3806 4 8.175C4 5.9694 5.79438 4.17502 7.99998 4.17502C9.42319 4.17502 10.7505 4.9409 11.4639 6.17375L9.73284 7.17548C9.37578 6.55838 8.71174 6.17501 7.99998 6.17501C6.89716 6.17501 5.99999 7.07218 5.99999 8.175C5.99999 9.27778 6.89716 10.175 7.99998 10.175C8.71182 10.175 9.37586 9.79162 9.73295 9.17441L11.464 10.1761C10.7506 11.4091 9.42327 12.175 7.99998 12.175Z" fill="black"/>
+</g>
+<defs>
+<clipPath id="clip0_1791_60">
+<rect width="11.9999" height="13.5039" fill="white" transform="translate(2 1.42307)"/>
+</clipPath>
+</defs>
+</svg>

assets/icons/file_icons/file_types.json

@@ -19,11 +19,11 @@
     "bash_profile": "terminal",
     "bashrc": "terminal",
     "bmp": "image",
-    "c": "code",
-    "cc": "code",
-    "cjs": "code",
+    "c": "c",
+    "cc": "cpp",
+    "cjs": "javascript",
     "conf": "settings",
-    "cpp": "code",
+    "cpp": "cpp",
     "css": "css",
     "csv": "storage",
     "cts": "typescript",
@@ -58,7 +58,8 @@
     "gitmodules": "vcs",
     "go": "go",
     "graphql": "graphql",
-    "h": "code",
+    "h": "c",
+    "hpp": "cpp",
     "handlebars": "code",
     "hbs": "template",
     "heex": "elixir",
@@ -77,7 +78,8 @@
     "jp2": "image",
     "jpeg": "image",
     "jpg": "image",
-    "js": "code",
+    "js": "javascript",
+    "jsx": "react",
     "json": "storage",
     "jsonc": "storage",
     "jxl": "image",
@@ -95,7 +97,7 @@
     "mdx": "document",
     "metadata": "code",
     "mkv": "video",
-    "mjs": "code",
+    "mjs": "javascript",
     "mka": "audio",
     "ml": "ocaml",
     "mli": "ocaml",
@@ -152,7 +154,7 @@
     "ts": "typescript",
     "tsv": "storage",
     "ttf": "font",
-    "tsx": "code",
+    "tsx": "react",
     "txt": "document",
     "tcl": "tcl",
     "vue": "vue",
@@ -161,6 +163,8 @@
     "webp": "image",
     "wma": "audio",
     "wmv": "video",
+    "woff": "font",
+    "woff2": "font",
     "wv": "audio",
     "xls": "document",
     "xlsx": "document",
@@ -193,6 +197,12 @@
     "collapsed_folder": {
       "icon": "icons/file_icons/folder.svg"
     },
+    "c": {
+      "icon": "icons/file_icons/c.svg"
+    },
+    "cpp": {
+      "icon": "icons/file_icons/cpp.svg"
+    },
     "css": {
       "icon": "icons/file_icons/css.svg"
     },
@@ -253,6 +263,9 @@
     "java": {
       "icon": "icons/file_icons/java.svg"
     },
+    "javascript": {
+      "icon": "icons/file_icons/javascript.svg"
+    },
     "kotlin": {
       "icon": "icons/file_icons/kotlin.svg"
     },
@@ -289,15 +302,18 @@
     "python": {
       "icon": "icons/file_icons/python.svg"
     },
+    "r": {
+      "icon": "icons/file_icons/r.svg"
+    },
+    "react": {
+      "icon": "icons/file_icons/react.svg"
+    },
     "ruby": {
       "icon": "icons/file_icons/ruby.svg"
     },
     "rust": {
       "icon": "icons/file_icons/rust.svg"
     },
-    "r": {
-      "icon": "icons/file_icons/r.svg"
-    },
     "settings": {
       "icon": "icons/file_icons/settings.svg"
     },
@@ -327,7 +343,7 @@
     },
     "tcl": {
       "icon": "icons/file_icons/tcl.svg"
-    },  
+    },
     "vcs": {
       "icon": "icons/file_icons/git.svg"
     },

assets/icons/file_icons/javascript.svg

@@ -0,0 +1,3 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M4 2C2.89543 2 2 2.89543 2 4V12C2 13.1046 2.89543 14 4 14H12C13.1046 14 14 13.1046 14 12V4C14 2.89543 13.1046 2 12 2H4ZM7.26917 6.80584H6.04784V10.8808C6.04784 11.0672 6.02025 11.2241 5.96508 11.3516C5.90991 11.4791 5.82906 11.5761 5.72253 11.6427C5.61789 11.7074 5.48948 11.7397 5.33729 11.7397C5.19271 11.7397 5.06715 11.7112 4.96062 11.6541C4.85599 11.5951 4.77323 11.5114 4.71235 11.403C4.65338 11.2926 4.62199 11.1604 4.61819 11.0063H3.38829C3.38639 11.3944 3.46914 11.7169 3.63655 11.9737C3.80396 12.2286 4.03035 12.4189 4.31571 12.5444C4.60297 12.6681 4.92257 12.7299 5.27451 12.7299C5.67021 12.7299 6.0174 12.6547 6.31607 12.5045C6.61475 12.3542 6.84779 12.1402 7.0152 11.8624C7.18452 11.5847 7.26917 11.2574 7.26917 10.8808V6.80584ZM11.1672 7.95013C11.3403 8.07759 11.4383 8.25641 11.4611 8.4866H12.6453C12.6396 8.13846 12.5464 7.83218 12.3657 7.56775C12.185 7.30331 11.9319 7.0969 11.6066 6.94852C11.2832 6.80013 10.9046 6.72594 10.4709 6.72594C10.0448 6.72594 9.66429 6.80013 9.32947 6.94852C8.99464 7.0969 8.73116 7.30331 8.53902 7.56775C8.34878 7.83218 8.25461 8.14132 8.25652 8.49516C8.25461 8.92701 8.39634 9.27039 8.6817 9.52531C8.96706 9.78023 9.3561 9.96762 9.84882 10.0875L10.4852 10.2473C10.6982 10.2986 10.878 10.3557 11.0245 10.4185C11.1729 10.4813 11.2851 10.5574 11.3612 10.6468C11.4392 10.7362 11.4782 10.8465 11.4782 10.9778C11.4782 11.1186 11.4354 11.2432 11.3498 11.3516C11.2642 11.46 11.1434 11.5447 10.9874 11.6056C10.8333 11.6665 10.6516 11.6969 10.4424 11.6969C10.2293 11.6969 10.0381 11.6646 9.86879 11.5999C9.70138 11.5333 9.56727 11.4353 9.46644 11.306C9.36751 11.1747 9.31139 11.0111 9.29808 10.8151H8.10242C8.11193 11.2356 8.21371 11.5885 8.40776 11.8738C8.6037 12.1573 8.87574 12.3713 9.22388 12.5159C9.57392 12.6605 9.98484 12.7327 10.4566 12.7327C10.9322 12.7327 11.3384 12.6614 11.6751 12.5187C12.0137 12.3741 12.2725 12.1715 12.4513 11.9109C12.632 11.6484 12.7233 11.3383 12.7252 10.9806C12.7233 10.7371 12.6786 10.5212 12.5911 10.3329C12.5055 10.1445 12.3847 9.98093 12.2287 9.84206C12.0727 9.70319 11.8882 9.58619 11.6751 9.49107C11.4621 9.39595 11.2281 9.31985 10.9731 9.26278L10.4481 9.13722C10.3206 9.10869 10.2008 9.07444 10.0885 9.03449C9.97628 8.99264 9.87736 8.94413 9.79175 8.88896C9.70614 8.83189 9.63861 8.76435 9.58914 8.68635C9.54158 8.60836 9.51971 8.51704 9.52351 8.41241C9.52351 8.28685 9.55966 8.17461 9.63195 8.07569C9.70614 7.97676 9.81267 7.89971 9.95155 7.84455C10.0904 7.78747 10.2607 7.75894 10.4623 7.75894C10.7591 7.75894 10.9941 7.82267 11.1672 7.95013Z" fill="black"/>
+</svg>

assets/icons/file_icons/react.svg

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+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
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+</svg>

assets/icons/indicator.svg

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assets/icons/trash.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-trash-2"><path d="M3 6h18"/><path d="M19 6v14c0 1-1 2-2 2H7c-1 0-2-1-2-2V6"/><path d="M8 6V4c0-1 1-2 2-2h4c1 0 2 1 2 2v2"/><line x1="10" x2="10" y1="11" y2="17"/><line x1="14" x2="14" y1="11" y2="17"/></svg>

assets/icons/word_search.svg

@@ -3,4 +3,3 @@
 <path fill-rule="evenodd" clip-rule="evenodd" d="M8.64907 9.32382C8.313 9.13287 8.08213 8.81954 7.94725 8.4078C7.8147 8.00318 7.75317 7.44207 7.75317 6.73677C7.75317 6.03845 7.81141 5.48454 7.9369 5.08716L7.93755 5.08512C8.07231 4.67373 8.3034 4.36258 8.64088 4.17794C8.96806 3.99257 9.41119 3.9104 9.9496 3.9104C10.3406 3.9104 10.6632 3.95585 10.8967 4.06485C11.0079 4.11675 11.1099 4.18844 11.2033 4.27745V2.03027H12.4077V9.4856H11.2033V9.18983C11.0945 9.29074 10.98 9.37096 10.8591 9.42752C10.6327 9.53648 10.3335 9.58252 9.97867 9.58252C9.4339 9.58252 8.98592 9.50355 8.65375 9.3264L8.64907 9.32382ZM11.1139 7.85508C11.1841 7.60311 11.2227 7.23354 11.2227 6.73677C11.2227 6.24602 11.1841 5.88331 11.1141 5.63844C11.0457 5.39902 10.9401 5.25863 10.8149 5.18266L10.8077 5.17826C10.6804 5.09342 10.4713 5.03726 10.1531 5.03726C9.80785 5.03726 9.5719 5.09359 9.42256 5.1832L9.41829 5.18576C9.28002 5.26412 9.16722 5.40602 9.09399 5.64263C9.01876 5.88566 8.97694 6.24668 8.97694 6.73677C8.97694 7.23363 9.01882 7.59774 9.09399 7.8406C9.1673 8.07745 9.28097 8.22477 9.42256 8.30972C9.5719 8.39933 9.80785 8.45566 10.1531 8.45566C10.4721 8.45566 10.683 8.40265 10.8114 8.32216C10.9396 8.23944 11.0456 8.09373 11.1139 7.85508Z" fill="#787D87"/>
 <rect x="1.14087" y="10.7188" width="11.7183" height="1.26565" rx="0.632824" fill="#787D87"/>
 </svg>
-

assets/icons/zed_assistant.svg

@@ -0,0 +1,5 @@
+<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M7 1.75L5.88467 5.14092C5.82759 5.31446 5.73055 5.47218 5.60136 5.60136C5.47218 5.73055 5.31446 5.82759 5.14092 5.88467L1.75 7L5.14092 8.11533C5.31446 8.17241 5.47218 8.26945 5.60136 8.39864C5.73055 8.52782 5.82759 8.68554 5.88467 8.85908L7 12.25L8.11533 8.85908C8.17241 8.68554 8.26945 8.52782 8.39864 8.39864C8.52782 8.26945 8.68554 8.17241 8.85908 8.11533L12.25 7L8.85908 5.88467C8.68554 5.82759 8.52782 5.73055 8.39864 5.60136C8.26945 5.47218 8.17241 5.31446 8.11533 5.14092L7 1.75Z" fill="black" fill-opacity="0.15" stroke="black" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M2.91667 1.75V4.08333M1.75 2.91667H4.08333" stroke="black" stroke-opacity="0.75" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M11.0833 9.91667V12.25M9.91667 11.0833H12.25" stroke="black" stroke-opacity="0.75" stroke-width="1.25" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

assets/keymaps/default-linux.json

@@ -138,6 +138,8 @@
       "ctrl-alt-space": "editor::ShowCharacterPalette",
       "ctrl-;": "editor::ToggleLineNumbers",
       "ctrl-k ctrl-r": "editor::RevertSelectedHunks",
+      "ctrl-'": "editor::ToggleHunkDiff",
+      "ctrl-\"": "editor::ExpandAllHunkDiffs",
       "ctrl-alt-g b": "editor::ToggleGitBlame"
     }
   },
@@ -212,7 +214,6 @@
       "enter": "search::SelectNextMatch",
       "shift-enter": "search::SelectPrevMatch",
       "alt-enter": "search::SelectAllMatches",
-      "alt-tab": "search::CycleMode",
       "ctrl-f": "search::FocusSearch",
       "ctrl-h": "search::ToggleReplace"
     }
@@ -235,11 +236,10 @@
     "context": "ProjectSearchBar",
     "bindings": {
       "escape": "project_search::ToggleFocus",
-      "alt-tab": "search::CycleMode",
       "ctrl-shift-f": "search::FocusSearch",
       "ctrl-shift-h": "search::ToggleReplace",
-      "alt-ctrl-g": "search::ActivateRegexMode",
-      "alt-ctrl-x": "search::ActivateTextMode"
+      "alt-ctrl-g": "search::ToggleRegex",
+      "alt-ctrl-x": "search::ToggleRegex"
     }
   },
   {
@@ -260,10 +260,9 @@
     "context": "ProjectSearchView",
     "bindings": {
       "escape": "project_search::ToggleFocus",
-      "alt-tab": "search::CycleMode",
       "ctrl-shift-h": "search::ToggleReplace",
-      "alt-ctrl-g": "search::ActivateRegexMode",
-      "alt-ctrl-x": "search::ActivateTextMode"
+      "alt-ctrl-g": "search::ToggleRegex",
+      "alt-ctrl-x": "search::ToggleRegex"
     }
   },
   {
@@ -283,10 +282,10 @@
       "alt-enter": "search::SelectAllMatches",
       "alt-c": "search::ToggleCaseSensitive",
       "alt-w": "search::ToggleWholeWord",
-      "alt-r": "search::CycleMode",
+      "alt-r": "search::ToggleRegex",
       "alt-ctrl-f": "project_search::ToggleFilters",
-      "ctrl-alt-shift-r": "search::ActivateRegexMode",
-      "ctrl-alt-shift-x": "search::ActivateTextMode"
+      "ctrl-alt-shift-r": "search::ToggleRegex",
+      "ctrl-alt-shift-x": "search::ToggleRegex"
     }
   },
   // Bindings from VS Code
@@ -300,13 +299,8 @@
       "ctrl-shift-k": "editor::DeleteLine",
       "alt-up": "editor::MoveLineUp",
       "alt-down": "editor::MoveLineDown",
-      "ctrl-alt-shift-up": [
-        "editor::DuplicateLine",
-        {
-          "move_upwards": true
-        }
-      ],
-      "ctrl-alt-shift-down": "editor::DuplicateLine",
+      "ctrl-alt-shift-up": "editor::DuplicateLineUp",
+      "ctrl-alt-shift-down": "editor::DuplicateLineDown",
       "ctrl-shift-left": "editor::SelectToPreviousWordStart",
       "ctrl-shift-right": "editor::SelectToNextWordEnd",
       "ctrl-shift-up": "editor::SelectLargerSyntaxNode", //todo(linux) tmp keybinding
@@ -530,6 +524,7 @@
     "context": "Editor && mode == full",
     "bindings": {
       "alt-enter": "editor::OpenExcerpts",
+      "shift-enter": "editor::ExpandExcerpts",
       "ctrl-k enter": "editor::OpenExcerptsSplit",
       "ctrl-f8": "editor::GoToHunk",
       "ctrl-shift-f8": "editor::GoToPrevHunk",
@@ -556,8 +551,8 @@
       "alt-ctrl-shift-c": "project_panel::CopyRelativePath",
       "f2": "project_panel::Rename",
       "enter": "project_panel::Rename",
-      "backspace": "project_panel::Delete",
-      "delete": "project_panel::Delete",
+      "backspace": "project_panel::Trash",
+      "delete": "project_panel::Trash",
       "ctrl-backspace": ["project_panel::Delete", { "skip_prompt": true }],
       "ctrl-delete": ["project_panel::Delete", { "skip_prompt": true }],
       "alt-ctrl-r": "project_panel::RevealInFinder",
@@ -595,12 +590,6 @@
       "tab": "channel_modal::ToggleMode"
     }
   },
-  {
-    "context": "ChatPanel > MessageEditor",
-    "bindings": {
-      "escape": "chat_panel::CloseReplyPreview"
-    }
-  },
   {
     "context": "FileFinder",
     "bindings": { "ctrl-shift-p": "file_finder::SelectPrev" }
@@ -608,6 +597,8 @@
   {
     "context": "TabSwitcher",
     "bindings": {
+      "ctrl-up": "menu::SelectPrev",
+      "ctrl-down": "menu::SelectNext",
       "ctrl-shift-tab": "menu::SelectPrev",
       "ctrl-backspace": "tab_switcher::CloseSelectedItem"
     }

assets/keymaps/default-macos.json

@@ -159,6 +159,8 @@
       "ctrl-cmd-space": "editor::ShowCharacterPalette",
       "cmd-;": "editor::ToggleLineNumbers",
       "cmd-alt-z": "editor::RevertSelectedHunks",
+      "cmd-'": "editor::ToggleHunkDiff",
+      "cmd-\"": "editor::ExpandAllHunkDiffs",
       "cmd-alt-g b": "editor::ToggleGitBlame"
     }
   },
@@ -209,7 +211,15 @@
     }
   },
   {
-    "context": "AssistantPanel",
+    "context": "AssistantChat > Editor", // Used in the assistant2 crate
+    "bindings": {
+      "enter": ["assistant2::Submit", "Simple"],
+      "cmd-enter": ["assistant2::Submit", "Codebase"],
+      "escape": "assistant2::Cancel"
+    }
+  },
+  {
+    "context": "AssistantPanel", // Used in the assistant crate, which we're replacing
     "bindings": {
       "cmd-g": "search::SelectNextMatch",
       "cmd-shift-g": "search::SelectPrevMatch"
@@ -233,7 +243,6 @@
       "enter": "search::SelectNextMatch",
       "shift-enter": "search::SelectPrevMatch",
       "alt-enter": "search::SelectAllMatches",
-      "alt-tab": "search::CycleMode",
       "cmd-f": "search::FocusSearch",
       "cmd-alt-f": "search::ToggleReplace"
     }
@@ -256,11 +265,10 @@
     "context": "ProjectSearchBar",
     "bindings": {
       "escape": "project_search::ToggleFocus",
-      "alt-tab": "search::CycleMode",
       "cmd-shift-f": "search::FocusSearch",
       "cmd-shift-h": "search::ToggleReplace",
-      "alt-cmd-g": "search::ActivateRegexMode",
-      "alt-cmd-x": "search::ActivateTextMode"
+      "alt-cmd-g": "search::ToggleRegex",
+      "alt-cmd-x": "search::ToggleRegex"
     }
   },
   {
@@ -281,10 +289,9 @@
     "context": "ProjectSearchView",
     "bindings": {
       "escape": "project_search::ToggleFocus",
-      "alt-tab": "search::CycleMode",
       "cmd-shift-h": "search::ToggleReplace",
-      "alt-cmd-g": "search::ActivateRegexMode",
-      "alt-cmd-x": "search::ActivateTextMode"
+      "alt-cmd-g": "search::ToggleRegex",
+      "alt-cmd-x": "search::ToggleRegex"
     }
   },
   {
@@ -306,10 +313,9 @@
       "alt-enter": "search::SelectAllMatches",
       "alt-cmd-c": "search::ToggleCaseSensitive",
       "alt-cmd-w": "search::ToggleWholeWord",
-      "alt-tab": "search::CycleMode",
       "alt-cmd-f": "project_search::ToggleFilters",
-      "alt-cmd-g": "search::ActivateRegexMode",
-      "alt-cmd-x": "search::ActivateTextMode"
+      "alt-cmd-g": "search::ToggleRegex",
+      "alt-cmd-x": "search::ToggleRegex"
     }
   },
   // Bindings from VS Code
@@ -545,6 +551,7 @@
     "context": "Editor && mode == full",
     "bindings": {
       "alt-enter": "editor::OpenExcerpts",
+      "shift-enter": "editor::ExpandExcerpts",
       "cmd-k enter": "editor::OpenExcerptsSplit",
       "cmd-f8": "editor::GoToHunk",
       "cmd-shift-f8": "editor::GoToPrevHunk",
@@ -571,8 +578,8 @@
       "alt-cmd-shift-c": "project_panel::CopyRelativePath",
       "f2": "project_panel::Rename",
       "enter": "project_panel::Rename",
-      "backspace": "project_panel::Delete",
-      "delete": "project_panel::Delete",
+      "backspace": "project_panel::Trash",
+      "delete": "project_panel::Trash",
       "cmd-backspace": ["project_panel::Delete", { "skip_prompt": true }],
       "cmd-delete": ["project_panel::Delete", { "skip_prompt": true }],
       "alt-cmd-r": "project_panel::RevealInFinder",
@@ -617,6 +624,8 @@
   {
     "context": "TabSwitcher",
     "bindings": {
+      "ctrl-up": "menu::SelectPrev",
+      "ctrl-down": "menu::SelectNext",
       "ctrl-shift-tab": "menu::SelectPrev",
       "ctrl-backspace": "tab_switcher::CloseSelectedItem"
     }

assets/keymaps/storybook.json

@@ -17,7 +17,11 @@
       "cmd-enter": "menu::SecondaryConfirm",
       "escape": "menu::Cancel",
       "ctrl-c": "menu::Cancel",
-      "cmd-q": "storybook::Quit"
+      "cmd-q": "storybook::Quit",
+      "backspace": "editor::Backspace",
+      "delete": "editor::Delete",
+      "left": "editor::MoveLeft",
+      "right": "editor::MoveRight"
     }
   }
 ]

assets/keymaps/textmate.json

@@ -39,13 +39,13 @@
       "cmd-shift-left": "editor::SelectToBeginningOfLine",
       "cmd-shift-right": "editor::SelectToEndOfLine",
       "alt-shift-left": [
-        "editor::SelectToBeginningOfLine",
+        "editor::SelectToPreviousWordStart",
         {
           "stop_at_soft_wraps": true
         }
       ],
       "alt-shift-right": [
-        "editor::SelectToEndOfLine",
+        "editor::SelectToNextWordEnd",
         {
           "stop_at_soft_wraps": true
         }

assets/keymaps/vim.json

@@ -128,6 +128,7 @@
       "shift-v": "vim::ToggleVisualLine",
       "ctrl-v": "vim::ToggleVisualBlock",
       "ctrl-q": "vim::ToggleVisualBlock",
+      "shift-k": "editor::Hover",
       "shift-r": "vim::ToggleReplace",
       "0": "vim::StartOfLine", // When no number operator present, use start of line motion
       "ctrl-f": "vim::PageDown",
@@ -234,6 +235,8 @@
           "displayLines": true
         }
       ],
+      "g ]": "editor::GoToDiagnostic",
+      "g [": "editor::GoToPrevDiagnostic",
       "shift-h": "vim::WindowTop",
       "shift-m": "vim::WindowMiddle",
       "shift-l": "vim::WindowBottom",
@@ -367,6 +370,15 @@
       "< <": "vim::Outdent",
       "ctrl-pagedown": "pane::ActivateNextItem",
       "ctrl-pageup": "pane::ActivatePrevItem",
+      // tree-sitter related commands
+      "[ x": "editor::SelectLargerSyntaxNode",
+      "] x": "editor::SelectSmallerSyntaxNode"
+    }
+  },
+  {
+    "context": "Editor && vim_mode == visual && vim_operator == none && !VimWaiting",
+    "bindings": {
+      // tree-sitter related commands
       "[ x": "editor::SelectLargerSyntaxNode",
       "] x": "editor::SelectSmallerSyntaxNode"
     }
@@ -424,6 +436,12 @@
       ]
     }
   },
+  {
+    "context": "Editor && vim_operator == ys",
+    "bindings": {
+      "s": "vim::CurrentLine"
+    }
+  },
   {
     "context": "Editor && VimObject",
     "bindings": {
@@ -532,6 +550,18 @@
       ]
     }
   },
+  {
+    "context": "Editor && vim_mode == normal",
+    "bindings": {
+      "g c c": "editor::ToggleComments"
+    }
+  },
+  {
+    "context": "Editor && vim_mode == visual",
+    "bindings": {
+      "g c": "editor::ToggleComments"
+    }
+  },
   {
     "context": "Editor && vim_mode == insert",
     "bindings": {
@@ -590,18 +620,22 @@
       "%": "project_panel::NewFile",
       "/": "project_panel::NewSearchInDirectory",
       "d": "project_panel::NewDirectory",
-      "enter": "project_panel::Open",
+      "enter": "project_panel::OpenPermanent",
       "escape": "project_panel::ToggleFocus",
       "h": "project_panel::CollapseSelectedEntry",
       "j": "menu::SelectNext",
       "k": "menu::SelectPrev",
       "l": "project_panel::ExpandSelectedEntry",
-      "o": "project_panel::Open",
+      "o": "project_panel::OpenPermanent",
       "shift-d": "project_panel::Delete",
       "shift-r": "project_panel::Rename",
-      "t": "project_panel::Open",
-      "v": "project_panel::Open",
-      "x": "project_panel::RevealInFinder"
+      "t": "project_panel::OpenPermanent",
+      "v": "project_panel::OpenPermanent",
+      "p": "project_panel::Open",
+      "x": "project_panel::RevealInFinder",
+      "shift-g": "menu::SelectLast",
+      "g g": "menu::SelectFirst",
+      "-": "project_panel::SelectParent"
     }
   }
 ]

assets/settings/default.json

@@ -12,8 +12,8 @@
   "base_keymap": "VSCode",
   // Features that can be globally enabled or disabled
   "features": {
-    // Show Copilot icon in status bar
-    "copilot": true
+    // Which inline completion provider to use.
+    "inline_completion_provider": "copilot"
   },
   // The name of a font to use for rendering text in the editor
   "buffer_font_family": "Zed Mono",
@@ -47,17 +47,30 @@
   // The factor to grow the active pane by. Defaults to 1.0
   // which gives the same size as all other panes.
   "active_pane_magnification": 1.0,
+  // Centered layout related settings.
+  "centered_layout": {
+    // The relative width of the left padding of the central pane from the
+    // workspace when the centered layout is used.
+    "left_padding": 0.2,
+    // The relative width of the right padding of the central pane from the
+    // workspace when the centered layout is used.
+    "right_padding": 0.2
+  },
   // The key to use for adding multiple cursors
   // Currently "alt" or "cmd_or_ctrl"  (also aliased as
   // "cmd" and "ctrl") are supported.
   "multi_cursor_modifier": "alt",
-  // Whether to enable vim modes and key bindings
+  // Whether to enable vim modes and key bindings.
   "vim_mode": false,
   // Whether to show the informational hover box when moving the mouse
   // over symbols in the editor.
   "hover_popover_enabled": true,
   // Whether to confirm before quitting Zed.
   "confirm_quit": false,
+  // Whether to restore last closed project when fresh Zed instance is opened.
+  "restore_on_startup": "last_workspace",
+  // Size of the drop target in the editor.
+  "drop_target_size": 0.2,
   // Whether the cursor blinks in the editor.
   "cursor_blink": true,
   // Whether to pop the completions menu while typing in an editor without
@@ -90,8 +103,9 @@
   // Whether to use additional LSP queries to format (and amend) the code after
   // every "trigger" symbol input, defined by LSP server capabilities.
   "use_on_type_format": true,
-  // Whether to automatically type closing characters for you. For example,
-  // when you type (, Zed will automatically add a closing ) at the correct position.
+  // Whether to automatically add matching closing characters when typing
+  // opening parenthesis, bracket, brace, single or double quote characters.
+  // For example, when you type (, Zed will add a closing ) at the correct position.
   "use_autoclose": true,
   // Controls how the editor handles the autoclosed characters.
   // When set to `false`(default), skipping over and auto-removing of the closing characters
@@ -141,12 +155,14 @@
     // 4. Never show the scrollbar:
     //    "never"
     "show": "auto",
+    // Whether to show cursor positions in the scrollbar.
+    "cursors": true,
     // Whether to show git diff indicators in the scrollbar.
     "git_diff": true,
-    // Whether to show selections in the scrollbar.
-    "selections": true,
-    // Whether to show symbols selections in the scrollbar.
-    "symbols_selections": true,
+    // Whether to show buffer search results in the scrollbar.
+    "search_results": true,
+    // Whether to show selected symbol occurrences in the scrollbar.
+    "selected_symbol": true,
     // Whether to show diagnostic indicators in the scrollbar.
     "diagnostics": true
   },
@@ -169,6 +185,9 @@
   },
   // The number of lines to keep above/below the cursor when scrolling.
   "vertical_scroll_margin": 3,
+  // Scroll sensitivity multiplier. This multiplier is applied
+  // to both the horizontal and vertical delta values while scrolling.
+  "scroll_sensitivity": 1.0,
   "relative_line_numbers": false,
   // When to populate a new search's query based on the text under the cursor.
   // This setting can take the following three values:
@@ -197,6 +216,8 @@
     "scroll_debounce_ms": 50
   },
   "project_panel": {
+    // Whether to show the project panel button in the status bar
+    "button": true,
     // Default width of the project panel.
     "default_width": 240,
     // Where to dock the project panel. Can be 'left' or 'right'.
@@ -212,7 +233,10 @@
     // Whether to reveal it in the project panel automatically,
     // when a corresponding project entry becomes active.
     // Gitignored entries are never auto revealed.
-    "auto_reveal_entries": true
+    "auto_reveal_entries": true,
+    /// Whether to fold directories automatically
+    /// when a directory has only one directory inside.
+    "auto_fold_dirs": false
   },
   "collaboration_panel": {
     // Whether to show the collaboration panel button in the status bar.
@@ -272,6 +296,12 @@
   "show_call_status_icon": true,
   // Whether to use language servers to provide code intelligence.
   "enable_language_server": true,
+  // The list of language servers to use (or disable) for all languages.
+  //
+  // This is typically customized on a per-language basis.
+  "language_servers": [
+    "..."
+  ],
   // When to automatically save edited buffers. This setting can
   // take four values.
   //
@@ -296,6 +326,18 @@
     // Position of the close button on the editor tabs.
     "close_position": "right"
   },
+  // Settings related to preview tabs.
+  "preview_tabs": {
+    // Whether preview tabs should be enabled.
+    // Preview tabs allow you to open files in preview mode, where they close automatically
+    // when you switch to another file unless you explicitly pin them.
+    // This is useful for quickly viewing files without cluttering your workspace.
+    "enabled": true,
+    // Whether to open tabs in preview mode when selected from the file finder.
+    "enable_preview_from_file_finder": false,
+    // Whether a preview tab gets replaced when code navigation is used to navigate away from the tab.
+    "enable_preview_from_code_navigation": false
+  },
   // Whether or not to remove any trailing whitespace from lines of a buffer
   // before saving it.
   "remove_trailing_whitespace_on_save": true,
@@ -328,11 +370,13 @@
   //
   // 1. Do not soft wrap.
   //      "soft_wrap": "none",
-  // 2. Soft wrap lines that overflow the editor:
+  // 2. Prefer a single line generally, unless an overly long line is encountered.
+  //      "soft_wrap": "prefer_line",
+  // 3. Soft wrap lines that overflow the editor:
   //      "soft_wrap": "editor_width",
-  // 3. Soft wrap lines at the preferred line length
+  // 4. Soft wrap lines at the preferred line length
   //      "soft_wrap": "preferred_line_length",
-  "soft_wrap": "none",
+  "soft_wrap": "prefer_line",
   // The column at which to soft-wrap lines, for buffers where soft-wrap
   // is enabled.
   "preferred_line_length": 80,
@@ -375,12 +419,22 @@
     //      "git_gutter": "tracked_files"
     // 2. Hide the gutter
     //      "git_gutter": "hide"
-    "git_gutter": "tracked_files"
+    "git_gutter": "tracked_files",
+    // Control whether the git blame information is shown inline,
+    // in the currently focused line.
+    "inline_blame": {
+      "enabled": true
+      // Sets a delay after which the inline blame information is shown.
+      // Delay is restarted with every cursor movement.
+      // "delay_ms": 600
+    }
   },
   "copilot": {
     // The set of glob patterns for which copilot should be disabled
     // in any matching file.
-    "disabled_globs": [".env"]
+    "disabled_globs": [
+      ".env"
+    ]
   },
   // Settings specific to journaling
   "journal": {
@@ -464,6 +518,8 @@
     // Whether or not selecting text in the terminal will automatically
     // copy to the system clipboard.
     "copy_on_select": false,
+    // Whether to show the terminal button in the status bar
+    "button": true,
     // Any key-value pairs added to this list will be added to the terminal's
     // environment. Use `:` to separate multiple values.
     "env": {
@@ -489,7 +545,12 @@
         // Default directories to search for virtual environments, relative
         // to the current working directory. We recommend overriding this
         // in your project's settings, rather than globally.
-        "directories": [".env", "env", ".venv", "venv"],
+        "directories": [
+          ".env",
+          "env",
+          ".venv",
+          "venv"
+        ],
         // Can also be 'csh', 'fish', and `nushell`
         "activate_script": "default"
       }
@@ -509,31 +570,6 @@
     // Existing terminals will not pick up this change until they are recreated.
     // "max_scroll_history_lines": 10000,
   },
-  // Settings specific to our elixir integration
-  "elixir": {
-    // Change the LSP zed uses for elixir.
-    // Note that changing this setting requires a restart of Zed
-    // to take effect.
-    //
-    // May take 3 values:
-    //  1. Use the standard ElixirLS, this is the default
-    //         "lsp": "elixir_ls"
-    //  2. Use the experimental NextLs
-    //         "lsp": "next_ls",
-    //  3. Use a language server installed locally on your machine:
-    //         "lsp": {
-    //           "local": {
-    //             "path": "~/next-ls/bin/start",
-    //             "arguments": ["--stdio"]
-    //            }
-    //          },
-    //
-    "lsp": "elixir_ls"
-  },
-  // Settings specific to our deno integration
-  "deno": {
-    "enable": false
-  },
   "code_actions_on_format": {},
   // An object whose keys are language names, and whose values
   // are arrays of filenames or extensions of files that should
@@ -548,6 +584,13 @@
   // }
   //
   "file_types": {},
+  // The extensions that Zed should automatically install on startup.
+  //
+  // If you don't want any of these extensions, add this field to your settings
+  // and change the value to `false`.
+  "auto_install_extensions": {
+    "html": true
+  },
   // Different settings for specific languages.
   "languages": {
     "C++": {
@@ -556,6 +599,14 @@
     "C": {
       "format_on_save": "off"
     },
+    "Elixir": {
+      "language_servers": [
+        "elixir-ls",
+        "!next-ls",
+        "!lexical",
+        "..."
+      ]
+    },
     "Gleam": {
       "tab_size": 2
     },
@@ -564,6 +615,14 @@
         "source.organizeImports": true
       }
     },
+    "HEEX": {
+      "language_servers": [
+        "elixir-ls",
+        "!next-ls",
+        "!lexical",
+        "..."
+      ]
+    },
     "Make": {
       "hard_tabs": true
     },

crates/activity_indicator/Cargo.toml

@@ -23,7 +23,6 @@ language.workspace = true
 project.workspace = true
 smallvec.workspace = true
 ui.workspace = true
-util.workspace = true
 workspace.workspace = true
 
 [dev-dependencies]

crates/activity_indicator/src/activity_indicator.rs

@@ -12,7 +12,6 @@ use project::{LanguageServerProgress, Project};
 use smallvec::SmallVec;
 use std::{cmp::Reverse, fmt::Write, sync::Arc};
 use ui::prelude::*;
-use util::ResultExt;
 use workspace::{item::ItemHandle, StatusItemView, Workspace};
 
 actions!(activity_indicator, [ShowErrorMessage]);
@@ -82,26 +81,37 @@ impl ActivityIndicator {
             }
         });
 
-        cx.subscribe(&this, move |workspace, _, event, cx| match event {
+        cx.subscribe(&this, move |_, _, event, cx| match event {
             Event::ShowError { lsp_name, error } => {
-                if let Some(buffer) = project
-                    .update(cx, |project, cx| project.create_buffer(error, None, cx))
-                    .log_err()
-                {
-                    buffer.update(cx, |buffer, cx| {
+                let create_buffer = project.update(cx, |project, cx| project.create_buffer(cx));
+                let project = project.clone();
+                let error = error.clone();
+                let lsp_name = lsp_name.clone();
+                cx.spawn(|workspace, mut cx| async move {
+                    let buffer = create_buffer.await?;
+                    buffer.update(&mut cx, |buffer, cx| {
                         buffer.edit(
-                            [(0..0, format!("Language server error: {}\n\n", lsp_name))],
+                            [(
+                                0..0,
+                                format!("Language server error: {}\n\n{}", lsp_name, error),
+                            )],
                             None,
                             cx,
                         );
-                    });
-                    workspace.add_item_to_active_pane(
-                        Box::new(
-                            cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
-                        ),
-                        cx,
-                    );
-                }
+                    })?;
+                    workspace.update(&mut cx, |workspace, cx| {
+                        workspace.add_item_to_active_pane(
+                            Box::new(cx.new_view(|cx| {
+                                Editor::for_buffer(buffer, Some(project.clone()), cx)
+                            })),
+                            None,
+                            cx,
+                        );
+                    })?;
+
+                    anyhow::Ok(())
+                })
+                .detach();
             }
         })
         .detach();

crates/anthropic/Cargo.toml

@@ -5,6 +5,9 @@ edition = "2021"
 publish = false
 license = "AGPL-3.0-or-later"
 
+[lints]
+workspace = true
+
 [lib]
 path = "src/anthropic.rs"
 
@@ -17,6 +20,3 @@ util.workspace = true
 
 [dev-dependencies]
 tokio.workspace = true
-
-[lints]
-workspace = true

crates/anthropic/src/anthropic.rs

@@ -1,7 +1,7 @@
 use anyhow::{anyhow, Result};
 use futures::{io::BufReader, stream::BoxStream, AsyncBufReadExt, AsyncReadExt, StreamExt};
 use serde::{Deserialize, Serialize};
-use std::convert::TryFrom;
+use std::{convert::TryFrom, sync::Arc};
 use util::http::{AsyncBody, HttpClient, Method, Request as HttpRequest};
 
 #[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq)]
@@ -141,7 +141,7 @@ pub enum TextDelta {
 }
 
 pub async fn stream_completion(
-    client: &dyn HttpClient,
+    client: Arc<dyn HttpClient>,
     api_url: &str,
     api_key: &str,
     request: Request,

crates/assets/Cargo.toml

@@ -5,6 +5,9 @@ edition = "2021"
 publish = false
 license = "GPL-3.0-or-later"
 
+[lib]
+path = "src/assets.rs"
+
 [lints]
 workspace = true
 

crates/assets/src/assets.rs

@@ -1,7 +1,7 @@
 // This crate was essentially pulled out verbatim from main `zed` crate to avoid having to run RustEmbed macro whenever zed has to be rebuilt. It saves a second or two on an incremental build.
 use anyhow::anyhow;
 
-use gpui::{AssetSource, Result, SharedString};
+use gpui::{AppContext, AssetSource, Result, SharedString};
 use rust_embed::RustEmbed;
 
 #[derive(RustEmbed)]
@@ -34,3 +34,19 @@ impl AssetSource for Assets {
             .collect())
     }
 }
+
+impl Assets {
+    /// Populate the [`TextSystem`] of the given [`AppContext`] with all `.ttf` fonts in the `fonts` directory.
+    pub fn load_fonts(&self, cx: &AppContext) -> gpui::Result<()> {
+        let font_paths = self.list("fonts")?;
+        let mut embedded_fonts = Vec::new();
+        for font_path in font_paths {
+            if font_path.ends_with(".ttf") {
+                let font_bytes = cx.asset_source().load(&font_path)?;
+                embedded_fonts.push(font_bytes);
+            }
+        }
+
+        cx.text_system().add_fonts(embedded_fonts)
+    }
+}

crates/assistant/src/assistant.rs

@@ -128,6 +128,8 @@ impl LanguageModelRequestMessage {
                 Role::System => proto::LanguageModelRole::LanguageModelSystem,
             } as i32,
             content: self.content.clone(),
+            tool_calls: Vec::new(),
+            tool_call_id: None,
         }
     }
 }
@@ -147,6 +149,8 @@ impl LanguageModelRequest {
             messages: self.messages.iter().map(|m| m.to_proto()).collect(),
             stop: self.stop.clone(),
             temperature: self.temperature,
+            tool_choice: None,
+            tools: Vec::new(),
         }
     }
 }

crates/assistant/src/assistant_panel.rs

@@ -46,6 +46,7 @@ use ui::{
 };
 use util::{paths::CONVERSATIONS_DIR, post_inc, ResultExt, TryFutureExt};
 use uuid::Uuid;
+use workspace::notifications::NotificationId;
 use workspace::{
     dock::{DockPosition, Panel, PanelEvent},
     searchable::Direction,
@@ -418,10 +419,14 @@ impl AssistantPanel {
                                 if pending_assist.inline_assistant.is_none() {
                                     if let Some(workspace) = this.workspace.upgrade() {
                                         workspace.update(cx, |workspace, cx| {
-                                            workspace.show_toast(
-                                                Toast::new(inline_assist_id, error),
-                                                cx,
-                                            );
+                                            struct InlineAssistantError;
+
+                                            let id =
+                                                NotificationId::identified::<InlineAssistantError>(
+                                                    inline_assist_id,
+                                                );
+
+                                            workspace.show_toast(Toast::new(id, error), cx);
                                         })
                                     }
 
@@ -620,10 +625,10 @@ impl AssistantPanel {
         // If Markdown or No Language is Known, increase the randomness for more creative output
         // If Code, decrease temperature to get more deterministic outputs
         let temperature = if let Some(language) = language_name.clone() {
-            if language.as_ref() != "Markdown" {
-                0.5
-            } else {
+            if language.as_ref() == "Markdown" {
                 1.0
+            } else {
+                0.5
             }
         } else {
             1.0
@@ -696,7 +701,7 @@ impl AssistantPanel {
             } else {
                 editor.highlight_background::<PendingInlineAssist>(
                     &background_ranges,
-                    |theme| theme.editor_active_line_background, // todo!("use the appropriate color")
+                    |theme| theme.editor_active_line_background, // TODO use the appropriate color
                     cx,
                 );
             }
@@ -1103,7 +1108,7 @@ impl AssistantPanel {
                             )
                             .track_scroll(scroll_handle)
                             .into_any_element();
-                            saved_conversations.layout(
+                            saved_conversations.prepaint_as_root(
                                 bounds.origin,
                                 bounds.size.map(AvailableSpace::Definite),
                                 cx,
@@ -1114,8 +1119,8 @@ impl AssistantPanel {
                     )
                     .size_full()
                     .into_any_element()
-                } else {
-                    let editor = self.active_conversation_editor().unwrap();
+                } else if let Some(editor) = self.active_conversation_editor() {
+                    let editor = editor.clone();
                     let conversation = editor.read(cx).conversation.clone();
                     div()
                         .size_full()
@@ -1130,6 +1135,8 @@ impl AssistantPanel {
                                 .children(self.render_remaining_tokens(&conversation, cx)),
                         )
                         .into_any_element()
+                } else {
+                    div().into_any_element()
                 },
             ))
     }
@@ -2060,7 +2067,7 @@ impl ConversationEditor {
             workspace: workspace.downgrade(),
             _subscriptions,
         };
-        this.update_active_buffer(workspace, cx);
+        cx.defer(|this, cx| this.update_active_buffer(workspace, cx));
         this.update_message_headers(cx);
         this
     }
@@ -2866,7 +2873,7 @@ impl InlineAssistant {
                 cx.theme().colors().text
             },
             font_family: settings.ui_font.family.clone(),
-            font_features: settings.ui_font.features,
+            font_features: settings.ui_font.features.clone(),
             font_size: rems(0.875).into(),
             font_weight: FontWeight::NORMAL,
             font_style: FontStyle::Normal,

crates/assistant/src/completion_provider/open_ai.rs

@@ -140,14 +140,24 @@ impl OpenAiCompletionProvider {
             messages: request
                 .messages
                 .into_iter()
-                .map(|msg| RequestMessage {
-                    role: msg.role.into(),
-                    content: msg.content,
+                .map(|msg| match msg.role {
+                    Role::User => RequestMessage::User {
+                        content: msg.content,
+                    },
+                    Role::Assistant => RequestMessage::Assistant {
+                        content: Some(msg.content),
+                        tool_calls: Vec::new(),
+                    },
+                    Role::System => RequestMessage::System {
+                        content: msg.content,
+                    },
                 })
                 .collect(),
             stream: true,
             stop: request.stop,
             temperature: request.temperature,
+            tools: Vec::new(),
+            tool_choice: None,
         }
     }
 }
@@ -231,7 +241,7 @@ impl AuthenticationPrompt {
         let text_style = TextStyle {
             color: cx.theme().colors().text,
             font_family: settings.ui_font.family.clone(),
-            font_features: settings.ui_font.features,
+            font_features: settings.ui_font.features.clone(),
             font_size: rems(0.875).into(),
             font_weight: FontWeight::NORMAL,
             font_style: FontStyle::Normal,

crates/assistant/src/completion_provider/zed.rs

@@ -123,6 +123,8 @@ impl ZedDotDevCompletionProvider {
                 .collect(),
             stop: request.stop,
             temperature: request.temperature,
+            tools: Vec::new(),
+            tool_choice: None,
         };
 
         self.client

crates/assistant/src/saved_conversation.rs

@@ -106,6 +106,11 @@ impl SavedConversationMetadata {
                 .and_then(|name| name.to_str())
                 .zip(metadata)
             {
+                // This is used to filter out conversations saved by the new assistant.
+                if !re.is_match(file_name) {
+                    continue;
+                }
+
                 let title = re.replace(file_name, "");
                 conversations.push(Self {
                     title: title.into_owned(),

crates/assistant2/Cargo.toml

@@ -0,0 +1,61 @@
+[package]
+name = "assistant2"
+version = "0.1.0"
+edition = "2021"
+publish = false
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/assistant2.rs"
+
+[features]
+default = []
+stories = ["dep:story"]
+
+[dependencies]
+anyhow.workspace = true
+assistant_tooling.workspace = true
+client.workspace = true
+collections.workspace = true
+editor.workspace = true
+feature_flags.workspace = true
+fs.workspace = true
+futures.workspace = true
+fuzzy.workspace = true
+gpui.workspace = true
+language.workspace = true
+log.workspace = true
+nanoid.workspace = true
+open_ai.workspace = true
+picker.workspace = true
+project.workspace = true
+rich_text.workspace = true
+schemars.workspace = true
+semantic_index.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+settings.workspace = true
+story = { workspace = true, optional = true }
+theme.workspace = true
+ui.workspace = true
+util.workspace = true
+workspace.workspace = true
+
+[dev-dependencies]
+assets.workspace = true
+editor = { workspace = true, features = ["test-support"] }
+env_logger.workspace = true
+gpui = { workspace = true, features = ["test-support"] }
+language = { workspace = true, features = ["test-support"] }
+languages.workspace = true
+node_runtime.workspace = true
+project = { workspace = true, features = ["test-support"] }
+rand.workspace = true
+release_channel.workspace = true
+settings = { workspace = true, features = ["test-support"] }
+theme = { workspace = true, features = ["test-support"] }
+util = { workspace = true, features = ["test-support"] }
+workspace = { workspace = true, features = ["test-support"] }

crates/assistant2/evals/list-of-into-element.md

@@ -0,0 +1 @@
+> Give me a comprehensive list of all the elements defined in my project using the following query: `impl Element for {}, impl<T: 'static> Element for {}, impl IntoElement for {})`

crates/assistant2/evals/new-gpui-element.md

@@ -0,0 +1 @@
+> What are all the places we define a new gpui element in my project? (impl Element for {})

crates/assistant2/evals/settings-file.md

@@ -0,0 +1,3 @@
+Use tools frequently, especially when referring to files and code. The Zed editor we're working in can show me files directly when you add annotations. Be concise in chat, bountiful in tool calling.
+
+Teach me everything you can about how zed loads settings. Please annotate the code inline.

crates/assistant2/evals/what-is-the-assistant2-crate.md

@@ -0,0 +1 @@
+> Can you tell me what the assistant2 crate is for in my project? Tell me in 100 words or less.

crates/assistant2/src/assistant_settings.rs

@@ -0,0 +1,26 @@
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use settings::{Settings, SettingsSources};
+
+#[derive(Default, Debug, Deserialize, Serialize, Clone)]
+pub struct AssistantSettings {
+    pub enabled: bool,
+}
+
+#[derive(Default, Debug, Deserialize, Serialize, Clone, JsonSchema)]
+pub struct AssistantSettingsContent {
+    pub enabled: Option<bool>,
+}
+
+impl Settings for AssistantSettings {
+    const KEY: Option<&'static str> = Some("assistant_v2");
+
+    type FileContent = AssistantSettingsContent;
+
+    fn load(
+        sources: SettingsSources<Self::FileContent>,
+        _: &mut gpui::AppContext,
+    ) -> anyhow::Result<Self> {
+        Ok(sources.json_merge().unwrap_or_else(|_| Default::default()))
+    }
+}

crates/assistant2/src/attachments.rs

@@ -0,0 +1,3 @@
+mod active_file;
+
+pub use active_file::*;

crates/assistant2/src/attachments/active_file.rs

@@ -0,0 +1,112 @@
+use anyhow::{anyhow, Result};
+use assistant_tooling::{LanguageModelAttachment, ProjectContext, ToolOutput};
+use editor::Editor;
+use gpui::{Render, Task, View, WeakModel, WeakView};
+use language::Buffer;
+use project::ProjectPath;
+use ui::{prelude::*, ButtonLike, Tooltip, WindowContext};
+use util::maybe;
+use workspace::Workspace;
+
+pub struct ActiveEditorAttachment {
+    buffer: WeakModel<Buffer>,
+    path: Option<ProjectPath>,
+}
+
+pub struct FileAttachmentView {
+    output: Result<ActiveEditorAttachment>,
+}
+
+impl Render for FileAttachmentView {
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+        match &self.output {
+            Ok(attachment) => {
+                let filename: SharedString = attachment
+                    .path
+                    .as_ref()
+                    .and_then(|p| p.path.file_name()?.to_str())
+                    .unwrap_or("Untitled")
+                    .to_string()
+                    .into();
+
+                // todo!(): make the button link to the actual file to open
+                ButtonLike::new("file-attachment")
+                    .child(
+                        h_flex()
+                            .gap_1()
+                            .bg(cx.theme().colors().editor_background)
+                            .rounded_md()
+                            .child(ui::Icon::new(IconName::File))
+                            .child(filename.clone()),
+                    )
+                    .tooltip({
+                        move |cx| Tooltip::with_meta("File Attached", None, filename.clone(), cx)
+                    })
+                    .into_any_element()
+            }
+            Err(err) => div().child(err.to_string()).into_any_element(),
+        }
+    }
+}
+
+impl ToolOutput for FileAttachmentView {
+    fn generate(&self, project: &mut ProjectContext, cx: &mut WindowContext) -> String {
+        if let Ok(result) = &self.output {
+            if let Some(path) = &result.path {
+                project.add_file(path.clone());
+                return format!("current file: {}", path.path.display());
+            } else if let Some(buffer) = result.buffer.upgrade() {
+                return format!("current untitled buffer text:\n{}", buffer.read(cx).text());
+            }
+        }
+        String::new()
+    }
+}
+
+pub struct ActiveEditorAttachmentTool {
+    workspace: WeakView<Workspace>,
+}
+
+impl ActiveEditorAttachmentTool {
+    pub fn new(workspace: WeakView<Workspace>, _cx: &mut WindowContext) -> Self {
+        Self { workspace }
+    }
+}
+
+impl LanguageModelAttachment for ActiveEditorAttachmentTool {
+    type Output = ActiveEditorAttachment;
+    type View = FileAttachmentView;
+
+    fn run(&self, cx: &mut WindowContext) -> Task<Result<ActiveEditorAttachment>> {
+        Task::ready(maybe!({
+            let active_buffer = self
+                .workspace
+                .update(cx, |workspace, cx| {
+                    workspace
+                        .active_item(cx)
+                        .and_then(|item| Some(item.act_as::<Editor>(cx)?.read(cx).buffer().clone()))
+                })?
+                .ok_or_else(|| anyhow!("no active buffer"))?;
+
+            let buffer = active_buffer.read(cx);
+
+            if let Some(buffer) = buffer.as_singleton() {
+                let path =
+                    project::File::from_dyn(buffer.read(cx).file()).map(|file| ProjectPath {
+                        worktree_id: file.worktree_id(cx),
+                        path: file.path.clone(),
+                    });
+                return Ok(ActiveEditorAttachment {
+                    buffer: buffer.downgrade(),
+                    path,
+                });
+            } else {
+                Err(anyhow!("no active buffer"))
+            }
+        }))
+    }
+
+    fn view(output: Result<Self::Output>, cx: &mut WindowContext) -> View<Self::View> {
+        cx.new_view(|_cx| FileAttachmentView { output })
+    }
+}

crates/assistant2/src/completion_provider.rs

@@ -0,0 +1,183 @@
+use anyhow::Result;
+use assistant_tooling::ToolFunctionDefinition;
+use client::{proto, Client};
+use futures::{future::BoxFuture, stream::BoxStream, FutureExt, StreamExt};
+use gpui::{AppContext, Global};
+use std::sync::Arc;
+
+pub use open_ai::RequestMessage as CompletionMessage;
+
+#[derive(Clone)]
+pub struct CompletionProvider(Arc<dyn CompletionProviderBackend>);
+
+impl CompletionProvider {
+    pub fn get(cx: &AppContext) -> &Self {
+        cx.global::<CompletionProvider>()
+    }
+
+    pub fn new(backend: impl CompletionProviderBackend) -> Self {
+        Self(Arc::new(backend))
+    }
+
+    pub fn default_model(&self) -> String {
+        self.0.default_model()
+    }
+
+    pub fn available_models(&self) -> Vec<String> {
+        self.0.available_models()
+    }
+
+    pub fn complete(
+        &self,
+        model: String,
+        messages: Vec<CompletionMessage>,
+        stop: Vec<String>,
+        temperature: f32,
+        tools: Vec<ToolFunctionDefinition>,
+    ) -> BoxFuture<'static, Result<BoxStream<'static, Result<proto::LanguageModelResponseMessage>>>>
+    {
+        self.0.complete(model, messages, stop, temperature, tools)
+    }
+}
+
+impl Global for CompletionProvider {}
+
+pub trait CompletionProviderBackend: 'static {
+    fn default_model(&self) -> String;
+    fn available_models(&self) -> Vec<String>;
+    fn complete(
+        &self,
+        model: String,
+        messages: Vec<CompletionMessage>,
+        stop: Vec<String>,
+        temperature: f32,
+        tools: Vec<ToolFunctionDefinition>,
+    ) -> BoxFuture<'static, Result<BoxStream<'static, Result<proto::LanguageModelResponseMessage>>>>;
+}
+
+pub struct CloudCompletionProvider {
+    client: Arc<Client>,
+}
+
+impl CloudCompletionProvider {
+    pub fn new(client: Arc<Client>) -> Self {
+        Self { client }
+    }
+}
+
+impl CompletionProviderBackend for CloudCompletionProvider {
+    fn default_model(&self) -> String {
+        "gpt-4-turbo".into()
+    }
+
+    fn available_models(&self) -> Vec<String> {
+        vec!["gpt-4-turbo".into(), "gpt-4".into(), "gpt-3.5-turbo".into()]
+    }
+
+    fn complete(
+        &self,
+        model: String,
+        messages: Vec<CompletionMessage>,
+        stop: Vec<String>,
+        temperature: f32,
+        tools: Vec<ToolFunctionDefinition>,
+    ) -> BoxFuture<'static, Result<BoxStream<'static, Result<proto::LanguageModelResponseMessage>>>>
+    {
+        let client = self.client.clone();
+        let tools: Vec<proto::ChatCompletionTool> = tools
+            .iter()
+            .filter_map(|tool| {
+                Some(proto::ChatCompletionTool {
+                    variant: Some(proto::chat_completion_tool::Variant::Function(
+                        proto::chat_completion_tool::FunctionObject {
+                            name: tool.name.clone(),
+                            description: Some(tool.description.clone()),
+                            parameters: Some(serde_json::to_string(&tool.parameters).ok()?),
+                        },
+                    )),
+                })
+            })
+            .collect();
+
+        let tool_choice = match tools.is_empty() {
+            true => None,
+            false => Some("auto".into()),
+        };
+
+        async move {
+            let stream = client
+                .request_stream(proto::CompleteWithLanguageModel {
+                    model,
+                    messages: messages
+                        .into_iter()
+                        .map(|message| match message {
+                            CompletionMessage::Assistant {
+                                content,
+                                tool_calls,
+                            } => proto::LanguageModelRequestMessage {
+                                role: proto::LanguageModelRole::LanguageModelAssistant as i32,
+                                content: content.unwrap_or_default(),
+                                tool_call_id: None,
+                                tool_calls: tool_calls
+                                    .into_iter()
+                                    .map(|tool_call| match tool_call.content {
+                                        open_ai::ToolCallContent::Function { function } => {
+                                            proto::ToolCall {
+                                                id: tool_call.id,
+                                                variant: Some(proto::tool_call::Variant::Function(
+                                                    proto::tool_call::FunctionCall {
+                                                        name: function.name,
+                                                        arguments: function.arguments,
+                                                    },
+                                                )),
+                                            }
+                                        }
+                                    })
+                                    .collect(),
+                            },
+                            CompletionMessage::User { content } => {
+                                proto::LanguageModelRequestMessage {
+                                    role: proto::LanguageModelRole::LanguageModelUser as i32,
+                                    content,
+                                    tool_call_id: None,
+                                    tool_calls: Vec::new(),
+                                }
+                            }
+                            CompletionMessage::System { content } => {
+                                proto::LanguageModelRequestMessage {
+                                    role: proto::LanguageModelRole::LanguageModelSystem as i32,
+                                    content,
+                                    tool_calls: Vec::new(),
+                                    tool_call_id: None,
+                                }
+                            }
+                            CompletionMessage::Tool {
+                                content,
+                                tool_call_id,
+                            } => proto::LanguageModelRequestMessage {
+                                role: proto::LanguageModelRole::LanguageModelTool as i32,
+                                content,
+                                tool_call_id: Some(tool_call_id),
+                                tool_calls: Vec::new(),
+                            },
+                        })
+                        .collect(),
+                    stop,
+                    temperature,
+                    tool_choice,
+                    tools,
+                })
+                .await?;
+
+            Ok(stream
+                .filter_map(|response| async move {
+                    match response {
+                        Ok(mut response) => Some(Ok(response.choices.pop()?.delta?)),
+                        Err(error) => Some(Err(error)),
+                    }
+                })
+                .boxed())
+        }
+        .boxed()
+    }
+}

crates/assistant2/src/saved_conversation.rs

@@ -0,0 +1,49 @@
+use serde::{Deserialize, Serialize};
+
+use crate::MessageId;
+
+#[derive(Serialize, Deserialize)]
+pub struct SavedConversation {
+    /// The schema version of the conversation.
+    pub version: String,
+    /// The title of the conversation, generated by the Assistant.
+    pub title: String,
+    pub messages: Vec<SavedMessage>,
+}
+
+#[derive(Serialize, Deserialize)]
+#[serde(tag = "type", rename_all = "snake_case")]
+pub enum SavedMessageRole {
+    User,
+    Assistant,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct SavedMessage {
+    pub id: MessageId,
+    pub role: SavedMessageRole,
+    pub text: String,
+}
+
+/// Returns a list of placeholder conversations for mocking the UI.
+///
+/// Once we have real saved conversations to pull from we can use those instead.
+pub fn placeholder_conversations() -> Vec<SavedConversation> {
+    vec![
+        SavedConversation {
+            version: "0.3.0".to_string(),
+            title: "How to get a list of exported functions in an Erlang module".to_string(),
+            messages: vec![],
+        },
+        SavedConversation {
+            version: "0.3.0".to_string(),
+            title: "7 wonders of the ancient world".to_string(),
+            messages: vec![],
+        },
+        SavedConversation {
+            version: "0.3.0".to_string(),
+            title: "Size difference between u8 and a reference to u8 in Rust".to_string(),
+            messages: vec![],
+        },
+    ]
+}

crates/assistant2/src/saved_conversation_picker.rs

@@ -0,0 +1,188 @@
+use std::sync::Arc;
+
+use fuzzy::{match_strings, StringMatch, StringMatchCandidate};
+use gpui::{AppContext, DismissEvent, EventEmitter, FocusHandle, FocusableView, View, WeakView};
+use picker::{Picker, PickerDelegate};
+use ui::{prelude::*, HighlightedLabel, ListItem, ListItemSpacing};
+use util::ResultExt;
+use workspace::{ModalView, Workspace};
+
+use crate::saved_conversation::{self, SavedConversation};
+use crate::ToggleSavedConversations;
+
+pub struct SavedConversationPicker {
+    picker: View<Picker<SavedConversationPickerDelegate>>,
+}
+
+impl EventEmitter<DismissEvent> for SavedConversationPicker {}
+
+impl ModalView for SavedConversationPicker {}
+
+impl FocusableView for SavedConversationPicker {
+    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
+        self.picker.focus_handle(cx)
+    }
+}
+
+impl SavedConversationPicker {
+    pub fn register(workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>) {
+        workspace.register_action(|workspace, _: &ToggleSavedConversations, cx| {
+            workspace.toggle_modal(cx, move |cx| {
+                let delegate = SavedConversationPickerDelegate::new(cx.view().downgrade());
+                Self::new(delegate, cx)
+            });
+        });
+    }
+
+    pub fn new(delegate: SavedConversationPickerDelegate, cx: &mut ViewContext<Self>) -> Self {
+        let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
+        Self { picker }
+    }
+}
+
+impl Render for SavedConversationPicker {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        v_flex().w(rems(34.)).child(self.picker.clone())
+    }
+}
+
+pub struct SavedConversationPickerDelegate {
+    view: WeakView<SavedConversationPicker>,
+    saved_conversations: Vec<SavedConversation>,
+    selected_index: usize,
+    matches: Vec<StringMatch>,
+}
+
+impl SavedConversationPickerDelegate {
+    pub fn new(weak_view: WeakView<SavedConversationPicker>) -> Self {
+        let saved_conversations = saved_conversation::placeholder_conversations();
+        let matches = saved_conversations
+            .iter()
+            .map(|conversation| StringMatch {
+                candidate_id: 0,
+                score: 0.0,
+                positions: Default::default(),
+                string: conversation.title.clone(),
+            })
+            .collect();
+
+        Self {
+            view: weak_view,
+            saved_conversations,
+            selected_index: 0,
+            matches,
+        }
+    }
+}
+
+impl PickerDelegate for SavedConversationPickerDelegate {
+    type ListItem = ui::ListItem;
+
+    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
+        "Select saved conversation...".into()
+    }
+
+    fn match_count(&self) -> usize {
+        self.matches.len()
+    }
+
+    fn selected_index(&self) -> usize {
+        self.selected_index
+    }
+
+    fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
+        self.selected_index = ix;
+    }
+
+    fn update_matches(
+        &mut self,
+        query: String,
+        cx: &mut ViewContext<Picker<Self>>,
+    ) -> gpui::Task<()> {
+        let background_executor = cx.background_executor().clone();
+        let candidates = self
+            .saved_conversations
+            .iter()
+            .enumerate()
+            .map(|(id, conversation)| {
+                let text = conversation.title.clone();
+
+                StringMatchCandidate {
+                    id,
+                    char_bag: text.as_str().into(),
+                    string: text,
+                }
+            })
+            .collect::<Vec<_>>();
+
+        cx.spawn(move |this, mut cx| async move {
+            let matches = if query.is_empty() {
+                candidates
+                    .into_iter()
+                    .enumerate()
+                    .map(|(index, candidate)| StringMatch {
+                        candidate_id: index,
+                        string: candidate.string,
+                        positions: Vec::new(),
+                        score: 0.0,
+                    })
+                    .collect()
+            } else {
+                match_strings(
+                    &candidates,
+                    &query,
+                    false,
+                    100,
+                    &Default::default(),
+                    background_executor,
+                )
+                .await
+            };
+
+            this.update(&mut cx, |this, _cx| {
+                this.delegate.matches = matches;
+                this.delegate.selected_index = this
+                    .delegate
+                    .selected_index
+                    .min(this.delegate.matches.len().saturating_sub(1));
+            })
+            .log_err();
+        })
+    }
+
+    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
+        if self.matches.is_empty() {
+            self.dismissed(cx);
+            return;
+        }
+
+        // TODO: Implement selecting a saved conversation.
+    }
+
+    fn dismissed(&mut self, cx: &mut ui::prelude::ViewContext<Picker<Self>>) {
+        self.view
+            .update(cx, |_, cx| cx.emit(DismissEvent))
+            .log_err();
+    }
+
+    fn render_match(
+        &self,
+        ix: usize,
+        selected: bool,
+        _cx: &mut ViewContext<Picker<Self>>,
+    ) -> Option<Self::ListItem> {
+        let conversation_match = &self.matches[ix];
+        let _conversation = &self.saved_conversations[conversation_match.candidate_id];
+
+        Some(
+            ListItem::new(ix)
+                .inset(true)
+                .spacing(ListItemSpacing::Sparse)
+                .selected(selected)
+                .child(HighlightedLabel::new(
+                    conversation_match.string.clone(),
+                    conversation_match.positions.clone(),
+                )),
+        )
+    }
+}

crates/assistant2/src/tools.rs

@@ -0,0 +1,7 @@
+mod annotate_code;
+mod create_buffer;
+mod project_index;
+
+pub use annotate_code::*;
+pub use create_buffer::*;
+pub use project_index::*;

crates/assistant2/src/tools/annotate_code.rs

@@ -0,0 +1,202 @@
+use anyhow::Result;
+use assistant_tooling::{LanguageModelTool, ProjectContext, ToolOutput};
+use editor::{
+    display_map::{BlockContext, BlockDisposition, BlockProperties, BlockStyle},
+    Editor, MultiBuffer,
+};
+use gpui::{prelude::*, AnyElement, Model, Task, View, WeakView};
+use language::ToPoint;
+use project::{Project, ProjectPath};
+use schemars::JsonSchema;
+use serde::Deserialize;
+use std::path::Path;
+use ui::prelude::*;
+use util::ResultExt;
+use workspace::Workspace;
+
+pub struct AnnotationTool {
+    workspace: WeakView<Workspace>,
+    project: Model<Project>,
+}
+
+impl AnnotationTool {
+    pub fn new(workspace: WeakView<Workspace>, project: Model<Project>) -> Self {
+        Self { workspace, project }
+    }
+}
+
+#[derive(Debug, Deserialize, JsonSchema, Clone)]
+pub struct AnnotationInput {
+    /// Name for this set of annotations
+    title: String,
+    annotations: Vec<Annotation>,
+}
+
+#[derive(Debug, Deserialize, JsonSchema, Clone)]
+struct Annotation {
+    /// Path to the file
+    path: String,
+    /// Name of a symbol in the code
+    symbol_name: String,
+    /// Text to display near the symbol definition
+    text: String,
+}
+
+impl LanguageModelTool for AnnotationTool {
+    type Input = AnnotationInput;
+    type Output = String;
+    type View = AnnotationResultView;
+
+    fn name(&self) -> String {
+        "annotate_code".to_string()
+    }
+
+    fn description(&self) -> String {
+        "Dynamically annotate symbols in the current codebase. Opens a buffer in a panel in their editor, to the side of the conversation. The annotations are shown in the editor as a block decoration.".to_string()
+    }
+
+    fn execute(&self, input: &Self::Input, cx: &mut WindowContext) -> Task<Result<Self::Output>> {
+        let workspace = self.workspace.clone();
+        let project = self.project.clone();
+        let excerpts = input.annotations.clone();
+        let title = input.title.clone();
+
+        let worktree_id = project.update(cx, |project, cx| {
+            let worktree = project.worktrees().next()?;
+            let worktree_id = worktree.read(cx).id();
+            Some(worktree_id)
+        });
+
+        let worktree_id = if let Some(worktree_id) = worktree_id {
+            worktree_id
+        } else {
+            return Task::ready(Err(anyhow::anyhow!("No worktree found")));
+        };
+
+        let buffer_tasks = project.update(cx, |project, cx| {
+            let excerpts = excerpts.clone();
+            excerpts
+                .iter()
+                .map(|excerpt| {
+                    let project_path = ProjectPath {
+                        worktree_id,
+                        path: Path::new(&excerpt.path).into(),
+                    };
+                    project.open_buffer(project_path.clone(), cx)
+                })
+                .collect::<Vec<_>>()
+        });
+
+        cx.spawn(move |mut cx| async move {
+            let buffers = futures::future::try_join_all(buffer_tasks).await?;
+
+            let multibuffer = cx.new_model(|_cx| {
+                MultiBuffer::new(0, language::Capability::ReadWrite).with_title(title)
+            })?;
+            let editor =
+                cx.new_view(|cx| Editor::for_multibuffer(multibuffer, Some(project), cx))?;
+
+            for (excerpt, buffer) in excerpts.iter().zip(buffers.iter()) {
+                let snapshot = buffer.update(&mut cx, |buffer, _cx| buffer.snapshot())?;
+
+                if let Some(outline) = snapshot.outline(None) {
+                    let matches = outline
+                        .search(&excerpt.symbol_name, cx.background_executor().clone())
+                        .await;
+                    if let Some(mat) = matches.first() {
+                        let item = &outline.items[mat.candidate_id];
+                        let start = item.range.start.to_point(&snapshot);
+                        editor.update(&mut cx, |editor, cx| {
+                            let ranges = editor.buffer().update(cx, |multibuffer, cx| {
+                                multibuffer.push_excerpts_with_context_lines(
+                                    buffer.clone(),
+                                    vec![start..start],
+                                    5,
+                                    cx,
+                                )
+                            });
+                            let explanation = SharedString::from(excerpt.text.clone());
+                            editor.insert_blocks(
+                                [BlockProperties {
+                                    position: ranges[0].start,
+                                    height: 2,
+                                    style: BlockStyle::Fixed,
+                                    render: Box::new(move |cx| {
+                                        Self::render_note_block(&explanation, cx)
+                                    }),
+                                    disposition: BlockDisposition::Above,
+                                }],
+                                None,
+                                cx,
+                            );
+                        })?;
+                    }
+                }
+            }
+
+            workspace
+                .update(&mut cx, |workspace, cx| {
+                    workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
+                })
+                .log_err();
+
+            anyhow::Ok("showed comments to users in a new view".into())
+        })
+    }
+
+    fn output_view(
+        _: Self::Input,
+        output: Result<Self::Output>,
+        cx: &mut WindowContext,
+    ) -> View<Self::View> {
+        cx.new_view(|_cx| AnnotationResultView { output })
+    }
+}
+
+impl AnnotationTool {
+    fn render_note_block(explanation: &SharedString, cx: &mut BlockContext) -> AnyElement {
+        let anchor_x = cx.anchor_x;
+        let gutter_width = cx.gutter_dimensions.width;
+
+        h_flex()
+            .w_full()
+            .py_2()
+            .border_y_1()
+            .border_color(cx.theme().colors().border)
+            .child(
+                h_flex()
+                    .justify_center()
+                    .w(gutter_width)
+                    .child(Icon::new(IconName::Ai).color(Color::Hint)),
+            )
+            .child(
+                h_flex()
+                    .w_full()
+                    .ml(anchor_x - gutter_width)
+                    .child(explanation.clone()),
+            )
+            .into_any_element()
+    }
+}
+
+pub struct AnnotationResultView {
+    output: Result<String>,
+}
+
+impl Render for AnnotationResultView {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        match &self.output {
+            Ok(output) => div().child(output.clone().into_any_element()),
+            Err(error) => div().child(format!("failed to open path: {:?}", error)),
+        }
+    }
+}
+
+impl ToolOutput for AnnotationResultView {
+    fn generate(&self, _: &mut ProjectContext, _: &mut WindowContext) -> String {
+        match &self.output {
+            Ok(output) => output.clone(),
+            Err(err) => format!("Failed to create buffer: {err:?}"),
+        }
+    }
+}

crates/assistant2/src/tools/create_buffer.rs

@@ -0,0 +1,119 @@
+use anyhow::Result;
+use assistant_tooling::{LanguageModelTool, ProjectContext, ToolOutput};
+use editor::Editor;
+use gpui::{prelude::*, Model, Task, View, WeakView};
+use project::Project;
+use schemars::JsonSchema;
+use serde::Deserialize;
+use ui::prelude::*;
+use util::ResultExt;
+use workspace::Workspace;
+
+pub struct CreateBufferTool {
+    workspace: WeakView<Workspace>,
+    project: Model<Project>,
+}
+
+impl CreateBufferTool {
+    pub fn new(workspace: WeakView<Workspace>, project: Model<Project>) -> Self {
+        Self { workspace, project }
+    }
+}
+
+#[derive(Debug, Deserialize, JsonSchema)]
+pub struct CreateBufferInput {
+    /// The contents of the buffer.
+    text: String,
+
+    /// The name of the language to use for the buffer.
+    ///
+    /// This should be a human-readable name, like "Rust", "JavaScript", or "Python".
+    language: String,
+}
+
+impl LanguageModelTool for CreateBufferTool {
+    type Input = CreateBufferInput;
+    type Output = ();
+    type View = CreateBufferView;
+
+    fn name(&self) -> String {
+        "create_buffer".to_string()
+    }
+
+    fn description(&self) -> String {
+        "Create a new buffer in the current codebase".to_string()
+    }
+
+    fn execute(&self, input: &Self::Input, cx: &mut WindowContext) -> Task<Result<Self::Output>> {
+        cx.spawn({
+            let workspace = self.workspace.clone();
+            let project = self.project.clone();
+            let text = input.text.clone();
+            let language_name = input.language.clone();
+            |mut cx| async move {
+                let language = cx
+                    .update(|cx| {
+                        project
+                            .read(cx)
+                            .languages()
+                            .language_for_name(&language_name)
+                    })?
+                    .await?;
+
+                let buffer = cx
+                    .update(|cx| project.update(cx, |project, cx| project.create_buffer(cx)))?
+                    .await?;
+
+                buffer.update(&mut cx, |buffer, cx| {
+                    buffer.edit([(0..0, text)], None, cx);
+                    buffer.set_language(Some(language), cx)
+                })?;
+
+                workspace
+                    .update(&mut cx, |workspace, cx| {
+                        workspace.add_item_to_active_pane(
+                            Box::new(
+                                cx.new_view(|cx| Editor::for_buffer(buffer, Some(project), cx)),
+                            ),
+                            None,
+                            cx,
+                        );
+                    })
+                    .log_err();
+
+                Ok(())
+            }
+        })
+    }
+
+    fn output_view(
+        input: Self::Input,
+        output: Result<Self::Output>,
+        cx: &mut WindowContext,
+    ) -> View<Self::View> {
+        cx.new_view(|_cx| CreateBufferView {
+            language: input.language,
+            output,
+        })
+    }
+}
+
+pub struct CreateBufferView {
+    language: String,
+    output: Result<()>,
+}
+
+impl Render for CreateBufferView {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        div().child("Opening a buffer")
+    }
+}
+
+impl ToolOutput for CreateBufferView {
+    fn generate(&self, _: &mut ProjectContext, _: &mut WindowContext) -> String {
+        match &self.output {
+            Ok(_) => format!("Created a new {} buffer", self.language),
+            Err(err) => format!("Failed to create buffer: {err:?}"),
+        }
+    }
+}

crates/assistant2/src/tools/project_index.rs

@@ -0,0 +1,209 @@
+use anyhow::Result;
+use assistant_tooling::{LanguageModelTool, ToolOutput};
+use collections::BTreeMap;
+use gpui::{prelude::*, Model, Task};
+use project::ProjectPath;
+use schemars::JsonSchema;
+use semantic_index::{ProjectIndex, Status};
+use serde::Deserialize;
+use std::{fmt::Write as _, ops::Range};
+use ui::{div, prelude::*, CollapsibleContainer, Color, Icon, IconName, Label, WindowContext};
+
+const DEFAULT_SEARCH_LIMIT: usize = 20;
+
+pub struct ProjectIndexTool {
+    project_index: Model<ProjectIndex>,
+}
+
+// Note: Comments on a `LanguageModelTool::Input` become descriptions on the generated JSON schema as shown to the language model.
+// Any changes or deletions to the `CodebaseQuery` comments will change model behavior.
+
+#[derive(Deserialize, JsonSchema)]
+pub struct CodebaseQuery {
+    /// Semantic search query
+    query: String,
+    /// Maximum number of results to return, defaults to 20
+    limit: Option<usize>,
+}
+
+pub struct ProjectIndexView {
+    input: CodebaseQuery,
+    output: Result<ProjectIndexOutput>,
+    element_id: ElementId,
+    expanded_header: bool,
+}
+
+pub struct ProjectIndexOutput {
+    status: Status,
+    excerpts: BTreeMap<ProjectPath, Vec<Range<usize>>>,
+}
+
+impl ProjectIndexView {
+    fn new(input: CodebaseQuery, output: Result<ProjectIndexOutput>) -> Self {
+        let element_id = ElementId::Name(nanoid::nanoid!().into());
+
+        Self {
+            input,
+            output,
+            element_id,
+            expanded_header: false,
+        }
+    }
+
+    fn toggle_header(&mut self, cx: &mut ViewContext<Self>) {
+        self.expanded_header = !self.expanded_header;
+        cx.notify();
+    }
+}
+
+impl Render for ProjectIndexView {
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+        let query = self.input.query.clone();
+
+        let result = &self.output;
+
+        let output = match result {
+            Err(err) => {
+                return div().child(Label::new(format!("Error: {}", err)).color(Color::Error));
+            }
+            Ok(output) => output,
+        };
+
+        let file_count = output.excerpts.len();
+
+        let header = h_flex()
+            .gap_2()
+            .child(Icon::new(IconName::File))
+            .child(format!(
+                "Read {} {}",
+                file_count,
+                if file_count == 1 { "file" } else { "files" }
+            ));
+
+        v_flex().gap_3().child(
+            CollapsibleContainer::new(self.element_id.clone(), self.expanded_header)
+                .start_slot(header)
+                .on_click(cx.listener(move |this, _, cx| {
+                    this.toggle_header(cx);
+                }))
+                .child(
+                    v_flex()
+                        .gap_3()
+                        .p_3()
+                        .child(
+                            h_flex()
+                                .gap_2()
+                                .child(Icon::new(IconName::MagnifyingGlass))
+                                .child(Label::new(format!("`{}`", query)).color(Color::Muted)),
+                        )
+                        .child(
+                            v_flex()
+                                .gap_2()
+                                .children(output.excerpts.keys().map(|path| {
+                                    h_flex().gap_2().child(Icon::new(IconName::File)).child(
+                                        Label::new(path.path.to_string_lossy().to_string())
+                                            .color(Color::Muted),
+                                    )
+                                })),
+                        ),
+                ),
+        )
+    }
+}
+
+impl ToolOutput for ProjectIndexView {
+    fn generate(
+        &self,
+        context: &mut assistant_tooling::ProjectContext,
+        _: &mut WindowContext,
+    ) -> String {
+        match &self.output {
+            Ok(output) => {
+                let mut body = "found results in the following paths:\n".to_string();
+
+                for (project_path, ranges) in &output.excerpts {
+                    context.add_excerpts(project_path.clone(), ranges);
+                    writeln!(&mut body, "* {}", &project_path.path.display()).unwrap();
+                }
+
+                if output.status != Status::Idle {
+                    body.push_str("Still indexing. Results may be incomplete.\n");
+                }
+
+                body
+            }
+            Err(err) => format!("Error: {}", err),
+        }
+    }
+}
+
+impl ProjectIndexTool {
+    pub fn new(project_index: Model<ProjectIndex>) -> Self {
+        Self { project_index }
+    }
+}
+
+impl LanguageModelTool for ProjectIndexTool {
+    type Input = CodebaseQuery;
+    type Output = ProjectIndexOutput;
+    type View = ProjectIndexView;
+
+    fn name(&self) -> String {
+        "query_codebase".to_string()
+    }
+
+    fn description(&self) -> String {
+        "Semantic search against the user's current codebase, returning excerpts related to the query by computing a dot product against embeddings of code chunks in the code base and an embedding of the query.".to_string()
+    }
+
+    fn execute(&self, query: &Self::Input, cx: &mut WindowContext) -> Task<Result<Self::Output>> {
+        let project_index = self.project_index.read(cx);
+        let status = project_index.status();
+        let search = project_index.search(
+            query.query.clone(),
+            query.limit.unwrap_or(DEFAULT_SEARCH_LIMIT),
+            cx,
+        );
+
+        cx.spawn(|mut cx| async move {
+            let search_results = search.await?;
+
+            cx.update(|cx| {
+                let mut output = ProjectIndexOutput {
+                    status,
+                    excerpts: Default::default(),
+                };
+
+                for search_result in search_results {
+                    let path = ProjectPath {
+                        worktree_id: search_result.worktree.read(cx).id(),
+                        path: search_result.path.clone(),
+                    };
+
+                    let excerpts_for_path = output.excerpts.entry(path).or_default();
+                    let ix = match excerpts_for_path
+                        .binary_search_by_key(&search_result.range.start, |r| r.start)
+                    {
+                        Ok(ix) | Err(ix) => ix,
+                    };
+                    excerpts_for_path.insert(ix, search_result.range);
+                }
+
+                output
+            })
+        })
+    }
+
+    fn output_view(
+        input: Self::Input,
+        output: Result<Self::Output>,
+        cx: &mut WindowContext,
+    ) -> gpui::View<Self::View> {
+        cx.new_view(|_cx| ProjectIndexView::new(input, output))
+    }
+
+    fn render_running(_: &mut WindowContext) -> impl IntoElement {
+        CollapsibleContainer::new(ElementId::Name(nanoid::nanoid!().into()), false)
+            .start_slot("Searching code base")
+    }
+}

crates/assistant2/src/ui.rs

@@ -0,0 +1,17 @@
+mod active_file_button;
+mod chat_message;
+mod chat_notice;
+mod composer;
+mod project_index_button;
+
+#[cfg(feature = "stories")]
+mod stories;
+
+pub use active_file_button::*;
+pub use chat_message::*;
+pub use chat_notice::*;
+pub use composer::*;
+pub use project_index_button::*;
+
+#[cfg(feature = "stories")]
+pub use stories::*;

crates/assistant2/src/ui/active_file_button.rs

@@ -0,0 +1,134 @@
+use crate::attachments::ActiveEditorAttachmentTool;
+use assistant_tooling::AttachmentRegistry;
+use editor::Editor;
+use gpui::{prelude::*, Subscription, View};
+use std::sync::Arc;
+use ui::{prelude::*, ButtonLike, Color, Icon, IconName, Tooltip};
+use workspace::Workspace;
+
+#[derive(Clone)]
+enum Status {
+    ActiveFile(String),
+    #[allow(dead_code)]
+    NoFile,
+}
+
+pub struct ActiveFileButton {
+    attachment_registry: Arc<AttachmentRegistry>,
+    status: Status,
+    #[allow(dead_code)]
+    workspace_subscription: Subscription,
+}
+
+impl ActiveFileButton {
+    pub fn new(
+        attachment_registry: Arc<AttachmentRegistry>,
+        workspace: View<Workspace>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        let workspace_subscription = cx.subscribe(&workspace, Self::handle_workspace_event);
+
+        cx.defer(move |this, cx| this.update_active_buffer(workspace.clone(), cx));
+
+        Self {
+            attachment_registry,
+            status: Status::NoFile,
+            workspace_subscription,
+        }
+    }
+
+    pub fn set_enabled(&mut self, enabled: bool) {
+        self.attachment_registry
+            .set_attachment_tool_enabled::<ActiveEditorAttachmentTool>(enabled);
+    }
+
+    pub fn update_active_buffer(&mut self, workspace: View<Workspace>, cx: &mut ViewContext<Self>) {
+        let active_buffer = workspace
+            .read(cx)
+            .active_item(cx)
+            .and_then(|item| Some(item.act_as::<Editor>(cx)?.read(cx).buffer().clone()));
+
+        if let Some(buffer) = active_buffer {
+            let buffer = buffer.read(cx);
+
+            if let Some(singleton) = buffer.as_singleton() {
+                let singleton = singleton.read(cx);
+
+                let filename: String = singleton
+                    .file()
+                    .map(|file| file.path().to_string_lossy())
+                    .unwrap_or("Untitled".into())
+                    .into();
+
+                self.status = Status::ActiveFile(filename);
+            }
+        }
+    }
+
+    fn handle_workspace_event(
+        &mut self,
+        workspace: View<Workspace>,
+        event: &workspace::Event,
+        cx: &mut ViewContext<Self>,
+    ) {
+        if let workspace::Event::ActiveItemChanged = event {
+            self.update_active_buffer(workspace, cx);
+        }
+    }
+}
+
+impl Render for ActiveFileButton {
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+        let is_enabled = self
+            .attachment_registry
+            .is_attachment_tool_enabled::<ActiveEditorAttachmentTool>();
+
+        let icon = if is_enabled {
+            Icon::new(IconName::File)
+                .size(IconSize::XSmall)
+                .color(Color::Default)
+        } else {
+            Icon::new(IconName::File)
+                .size(IconSize::XSmall)
+                .color(Color::Disabled)
+        };
+
+        let indicator = None;
+
+        let status = self.status.clone();
+
+        ButtonLike::new("active-file-button")
+            .child(
+                ui::IconWithIndicator::new(icon, indicator)
+                    .indicator_border_color(Some(gpui::transparent_black())),
+            )
+            .tooltip({
+                move |cx| {
+                    let status = status.clone();
+                    let (tooltip, meta) = match (is_enabled, status) {
+                        (false, _) => (
+                            "Active file disabled".to_string(),
+                            Some("Click to enable".to_string()),
+                        ),
+                        (true, Status::ActiveFile(filename)) => (
+                            format!("Active file {filename} enabled"),
+                            Some("Click to disable".to_string()),
+                        ),
+                        (true, Status::NoFile) => {
+                            ("No file active for conversation".to_string(), None)
+                        }
+                    };
+
+                    if let Some(meta) = meta {
+                        Tooltip::with_meta(tooltip, None, meta, cx)
+                    } else {
+                        Tooltip::text(tooltip, cx)
+                    }
+                }
+            })
+            .on_click(cx.listener(move |this, _, cx| {
+                this.set_enabled(!is_enabled);
+                cx.notify();
+            }))
+    }
+}

crates/assistant2/src/ui/chat_message.rs

@@ -0,0 +1,140 @@
+use std::sync::Arc;
+
+use client::User;
+use gpui::{hsla, AnyElement, ClickEvent};
+use ui::{prelude::*, Avatar, Tooltip};
+
+use crate::MessageId;
+
+pub enum UserOrAssistant {
+    User(Option<Arc<User>>),
+    Assistant,
+}
+
+#[derive(IntoElement)]
+pub struct ChatMessage {
+    id: MessageId,
+    player: UserOrAssistant,
+    messages: Vec<AnyElement>,
+    selected: bool,
+    collapsed: bool,
+    on_collapse_handle_click: Box<dyn Fn(&ClickEvent, &mut WindowContext) + 'static>,
+}
+
+impl ChatMessage {
+    pub fn new(
+        id: MessageId,
+        player: UserOrAssistant,
+        messages: Vec<AnyElement>,
+        collapsed: bool,
+        on_collapse_handle_click: Box<dyn Fn(&ClickEvent, &mut WindowContext) + 'static>,
+    ) -> Self {
+        Self {
+            id,
+            player,
+            messages,
+            selected: false,
+            collapsed,
+            on_collapse_handle_click,
+        }
+    }
+}
+
+impl Selectable for ChatMessage {
+    fn selected(mut self, selected: bool) -> Self {
+        self.selected = selected;
+        self
+    }
+}
+
+impl RenderOnce for ChatMessage {
+    fn render(self, cx: &mut WindowContext) -> impl IntoElement {
+        let message_group = SharedString::from(format!("{}_group", self.id.0));
+
+        let collapse_handle_id = SharedString::from(format!("{}_collapse_handle", self.id.0));
+
+        let content_padding = Spacing::Small.rems(cx);
+        // Clamp the message height to exactly 1.5 lines when collapsed.
+        let collapsed_height = content_padding.to_pixels(cx.rem_size()) + cx.line_height() * 1.5;
+
+        let background_color = if let UserOrAssistant::User(_) = &self.player {
+            Some(cx.theme().colors().surface_background)
+        } else {
+            None
+        };
+
+        let (username, avatar_uri) = match self.player {
+            UserOrAssistant::Assistant => (
+                "Assistant".into(),
+                Some("https://zed.dev/assistant_avatar.png".into()),
+            ),
+            UserOrAssistant::User(Some(user)) => {
+                (user.github_login.clone(), Some(user.avatar_uri.clone()))
+            }
+            UserOrAssistant::User(None) => ("You".into(), None),
+        };
+
+        v_flex()
+            .group(message_group.clone())
+            .gap(Spacing::XSmall.rems(cx))
+            .p(Spacing::XSmall.rems(cx))
+            .when(self.selected, |element| {
+                element.bg(hsla(0.6, 0.67, 0.46, 0.12))
+            })
+            .rounded_lg()
+            .child(
+                h_flex()
+                    .justify_between()
+                    .px(content_padding)
+                    .child(
+                        h_flex()
+                            .gap_2()
+                            .map(|this| {
+                                let avatar_size = rems_from_px(20.);
+                                if let Some(avatar_uri) = avatar_uri {
+                                    this.child(Avatar::new(avatar_uri).size(avatar_size))
+                                } else {
+                                    this.child(div().size(avatar_size))
+                                }
+                            })
+                            .child(Label::new(username).color(Color::Muted)),
+                    )
+                    .child(
+                        h_flex().visible_on_hover(message_group).child(
+                            // temp icons
+                            IconButton::new(
+                                collapse_handle_id.clone(),
+                                if self.collapsed {
+                                    IconName::ArrowUp
+                                } else {
+                                    IconName::ArrowDown
+                                },
+                            )
+                            .icon_size(IconSize::XSmall)
+                            .icon_color(Color::Muted)
+                            .on_click(self.on_collapse_handle_click)
+                            .tooltip(|cx| Tooltip::text("Collapse Message", cx)),
+                        ),
+                    ),
+            )
+            .when(self.messages.len() > 0, |el| {
+                el.child(
+                    h_flex().child(
+                        v_flex()
+                            .relative()
+                            .overflow_hidden()
+                            .w_full()
+                            .p(content_padding)
+                            .gap_3()
+                            .text_ui(cx)
+                            .rounded_lg()
+                            .when_some(background_color, |this, background_color| {
+                                this.bg(background_color)
+                            })
+                            .when(self.collapsed, |this| this.h(collapsed_height))
+                            .children(self.messages),
+                    ),
+                )
+            })
+    }
+}

crates/assistant2/src/ui/chat_notice.rs

@@ -0,0 +1,71 @@
+use ui::{prelude::*, Avatar, IconButtonShape};
+
+#[derive(IntoElement)]
+pub struct ChatNotice {
+    message: SharedString,
+    meta: Option<SharedString>,
+}
+
+impl ChatNotice {
+    pub fn new(message: impl Into<SharedString>) -> Self {
+        Self {
+            message: message.into(),
+            meta: None,
+        }
+    }
+
+    pub fn meta(mut self, meta: impl Into<SharedString>) -> Self {
+        self.meta = Some(meta.into());
+        self
+    }
+}
+
+impl RenderOnce for ChatNotice {
+    fn render(self, _cx: &mut WindowContext) -> impl IntoElement {
+        h_flex()
+            .w_full()
+            .items_start()
+            .mt_4()
+            .gap_3()
+            .child(
+                // TODO: Replace with question mark.
+                Avatar::new("https://zed.dev/assistant_avatar.png").size(rems_from_px(20.)),
+            )
+            .child(
+                v_flex()
+                    .size_full()
+                    .gap_1()
+                    .pr_4()
+                    .overflow_hidden()
+                    .child(
+                        h_flex()
+                            .justify_between()
+                            .overflow_hidden()
+                            .child(
+                                h_flex()
+                                    .flex_none()
+                                    .overflow_hidden()
+                                    .child(Label::new(self.message)),
+                            )
+                            .child(
+                                h_flex()
+                                    .flex_shrink_0()
+                                    .gap_1()
+                                    .child(Button::new("allow", "Allow"))
+                                    .child(
+                                        IconButton::new("deny", IconName::Close)
+                                            .shape(IconButtonShape::Square)
+                                            .icon_color(Color::Muted)
+                                            .size(ButtonSize::None)
+                                            .icon_size(IconSize::XSmall),
+                                    ),
+                            ),
+                    )
+                    .children(
+                        self.meta.map(|meta| {
+                            Label::new(meta).size(LabelSize::Small).color(Color::Muted)
+                        }),
+                    ),
+            )
+    }
+}

crates/assistant2/src/ui/composer.rs

@@ -0,0 +1,188 @@
+use crate::{
+    ui::{ActiveFileButton, ProjectIndexButton},
+    AssistantChat, CompletionProvider,
+};
+use editor::{Editor, EditorElement, EditorStyle};
+use gpui::{AnyElement, FontStyle, FontWeight, TextStyle, View, WeakView, WhiteSpace};
+use settings::Settings;
+use theme::ThemeSettings;
+use ui::{popover_menu, prelude::*, ButtonLike, ContextMenu, Divider, TextSize, Tooltip};
+
+#[derive(IntoElement)]
+pub struct Composer {
+    editor: View<Editor>,
+    project_index_button: View<ProjectIndexButton>,
+    active_file_button: Option<View<ActiveFileButton>>,
+    model_selector: AnyElement,
+}
+
+impl Composer {
+    pub fn new(
+        editor: View<Editor>,
+        project_index_button: View<ProjectIndexButton>,
+        active_file_button: Option<View<ActiveFileButton>>,
+        model_selector: AnyElement,
+    ) -> Self {
+        Self {
+            editor,
+            project_index_button,
+            active_file_button,
+            model_selector,
+        }
+    }
+
+    fn render_tools(&mut self, _cx: &mut WindowContext) -> impl IntoElement {
+        h_flex().child(self.project_index_button.clone())
+    }
+
+    fn render_attachment_tools(&mut self, _cx: &mut WindowContext) -> impl IntoElement {
+        h_flex().children(
+            self.active_file_button
+                .clone()
+                .map(|view| view.into_any_element()),
+        )
+    }
+}
+
+impl RenderOnce for Composer {
+    fn render(mut self, cx: &mut WindowContext) -> impl IntoElement {
+        let font_size = TextSize::Default.rems(cx);
+        let line_height = font_size.to_pixels(cx.rem_size()) * 1.3;
+
+        h_flex()
+            .p(Spacing::Small.rems(cx))
+            .w_full()
+            .items_start()
+            .child(
+                v_flex().size_full().gap_1().child(
+                    v_flex()
+                        .w_full()
+                        .p_3()
+                        .bg(cx.theme().colors().editor_background)
+                        .rounded_lg()
+                        .child(
+                            v_flex()
+                                .justify_between()
+                                .w_full()
+                                .gap_2()
+                                .child({
+                                    let settings = ThemeSettings::get_global(cx);
+                                    let text_style = TextStyle {
+                                        color: cx.theme().colors().editor_foreground,
+                                        font_family: settings.buffer_font.family.clone(),
+                                        font_features: settings.buffer_font.features.clone(),
+                                        font_size: font_size.into(),
+                                        font_weight: FontWeight::NORMAL,
+                                        font_style: FontStyle::Normal,
+                                        line_height: line_height.into(),
+                                        background_color: None,
+                                        underline: None,
+                                        strikethrough: None,
+                                        white_space: WhiteSpace::Normal,
+                                    };
+
+                                    EditorElement::new(
+                                        &self.editor,
+                                        EditorStyle {
+                                            background: cx.theme().colors().editor_background,
+                                            local_player: cx.theme().players().local(),
+                                            text: text_style,
+                                            ..Default::default()
+                                        },
+                                    )
+                                })
+                                .child(
+                                    h_flex()
+                                        .flex_none()
+                                        .gap_2()
+                                        .justify_between()
+                                        .w_full()
+                                        .child(
+                                            h_flex().gap_1().child(
+                                                h_flex()
+                                                    .gap_2()
+                                                    .child(self.render_tools(cx))
+                                                    .child(Divider::vertical())
+                                                    .child(self.render_attachment_tools(cx)),
+                                            ),
+                                        )
+                                        .child(h_flex().gap_1().child(self.model_selector)),
+                                ),
+                        ),
+                ),
+            )
+    }
+}
+
+#[derive(IntoElement)]
+pub struct ModelSelector {
+    assistant_chat: WeakView<AssistantChat>,
+    model: String,
+}
+
+impl ModelSelector {
+    pub fn new(assistant_chat: WeakView<AssistantChat>, model: String) -> Self {
+        Self {
+            assistant_chat,
+            model,
+        }
+    }
+}
+
+impl RenderOnce for ModelSelector {
+    fn render(self, _cx: &mut WindowContext) -> impl IntoElement {
+        popover_menu("model-switcher")
+            .menu(move |cx| {
+                ContextMenu::build(cx, |mut menu, cx| {
+                    for model in CompletionProvider::get(cx).available_models() {
+                        menu = menu.custom_entry(
+                            {
+                                let model = model.clone();
+                                move |_| Label::new(model.clone()).into_any_element()
+                            },
+                            {
+                                let assistant_chat = self.assistant_chat.clone();
+                                move |cx| {
+                                    _ = assistant_chat.update(cx, |assistant_chat, cx| {
+                                        assistant_chat.model.clone_from(&model);
+                                        cx.notify();
+                                    });
+                                }
+                            },
+                        );
+                    }
+                    menu
+                })
+                .into()
+            })
+            .trigger(
+                ButtonLike::new("active-model")
+                    .child(
+                        h_flex()
+                            .w_full()
+                            .gap_0p5()
+                            .child(
+                                div()
+                                    .overflow_x_hidden()
+                                    .flex_grow()
+                                    .whitespace_nowrap()
+                                    .child(
+                                        Label::new(self.model)
+                                            .size(LabelSize::Small)
+                                            .color(Color::Muted),
+                                    ),
+                            )
+                            .child(
+                                div().child(
+                                    Icon::new(IconName::ChevronDown)
+                                        .color(Color::Muted)
+                                        .size(IconSize::XSmall),
+                                ),
+                            ),
+                    )
+                    .style(ButtonStyle::Subtle)
+                    .tooltip(move |cx| Tooltip::text("Change Model", cx)),
+            )
+            .anchor(gpui::AnchorCorner::BottomRight)
+    }
+}

crates/assistant2/src/ui/project_index_button.rs

@@ -0,0 +1,112 @@
+use assistant_tooling::ToolRegistry;
+use gpui::{percentage, prelude::*, Animation, AnimationExt, Model, Transformation};
+use semantic_index::{ProjectIndex, Status};
+use std::{sync::Arc, time::Duration};
+use ui::{prelude::*, ButtonLike, Color, Icon, IconName, Indicator, Tooltip};
+
+use crate::tools::ProjectIndexTool;
+
+pub struct ProjectIndexButton {
+    project_index: Model<ProjectIndex>,
+    tool_registry: Arc<ToolRegistry>,
+}
+
+impl ProjectIndexButton {
+    pub fn new(
+        project_index: Model<ProjectIndex>,
+        tool_registry: Arc<ToolRegistry>,
+        cx: &mut ViewContext<Self>,
+    ) -> Self {
+        cx.subscribe(&project_index, |_this, _, _status: &Status, cx| {
+            cx.notify();
+        })
+        .detach();
+        Self {
+            project_index,
+            tool_registry,
+        }
+    }
+
+    pub fn set_enabled(&mut self, enabled: bool) {
+        self.tool_registry
+            .set_tool_enabled::<ProjectIndexTool>(enabled);
+    }
+}
+
+impl Render for ProjectIndexButton {
+    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
+        let status = self.project_index.read(cx).status();
+        let is_enabled = self.tool_registry.is_tool_enabled::<ProjectIndexTool>();
+
+        let icon = if is_enabled {
+            match status {
+                Status::Idle => Icon::new(IconName::Code)
+                    .size(IconSize::XSmall)
+                    .color(Color::Default),
+                Status::Loading => Icon::new(IconName::Code)
+                    .size(IconSize::XSmall)
+                    .color(Color::Muted),
+                Status::Scanning { .. } => Icon::new(IconName::Code)
+                    .size(IconSize::XSmall)
+                    .color(Color::Muted),
+            }
+        } else {
+            Icon::new(IconName::Code)
+                .size(IconSize::XSmall)
+                .color(Color::Disabled)
+        };
+
+        let indicator = if is_enabled {
+            match status {
+                Status::Idle => Some(Indicator::dot().color(Color::Success)),
+                Status::Scanning { .. } => Some(Indicator::dot().color(Color::Warning)),
+                Status::Loading => Some(Indicator::icon(
+                    Icon::new(IconName::Spinner)
+                        .color(Color::Accent)
+                        .with_animation(
+                            "arrow-circle",
+                            Animation::new(Duration::from_secs(2)).repeat(),
+                            |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
+                        ),
+                )),
+            }
+        } else {
+            None
+        };
+
+        ButtonLike::new("project-index")
+            .child(
+                ui::IconWithIndicator::new(icon, indicator)
+                    .indicator_border_color(Some(gpui::transparent_black())),
+            )
+            .tooltip({
+                move |cx| {
+                    let (tooltip, meta) = match (is_enabled, status) {
+                        (false, _) => (
+                            "Project index disabled".to_string(),
+                            Some("Click to enable".to_string()),
+                        ),
+                        (_, Status::Idle) => (
+                            "Project index ready".to_string(),
+                            Some("Click to disable".to_string()),
+                        ),
+                        (_, Status::Loading) => ("Project index loading...".to_string(), None),
+                        (_, Status::Scanning { remaining_count }) => (
+                            "Project index scanning...".to_string(),
+                            Some(format!("{} remaining...", remaining_count)),
+                        ),
+                    };
+
+                    if let Some(meta) = meta {
+                        Tooltip::with_meta(tooltip, None, meta, cx)
+                    } else {
+                        Tooltip::text(tooltip, cx)
+                    }
+                }
+            })
+            .on_click(cx.listener(move |this, _, cx| {
+                this.set_enabled(!is_enabled);
+                cx.notify();
+            }))
+    }
+}

crates/assistant2/src/ui/stories.rs

@@ -0,0 +1,5 @@
+mod chat_message;
+mod chat_notice;
+
+pub use chat_message::*;
+pub use chat_notice::*;

crates/assistant2/src/ui/stories/chat_message.rs

@@ -0,0 +1,101 @@
+use std::sync::Arc;
+
+use client::User;
+use story::{StoryContainer, StoryItem, StorySection};
+use ui::prelude::*;
+
+use crate::ui::{ChatMessage, UserOrAssistant};
+use crate::MessageId;
+
+pub struct ChatMessageStory;
+
+impl Render for ChatMessageStory {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        let user_1 = Arc::new(User {
+            id: 12345,
+            github_login: "iamnbutler".into(),
+            avatar_uri: "https://avatars.githubusercontent.com/u/1714999?v=4".into(),
+        });
+
+        StoryContainer::new(
+            "ChatMessage Story",
+            "crates/assistant2/src/ui/stories/chat_message.rs",
+        )
+        .child(
+            StorySection::new()
+                .child(StoryItem::new(
+                    "User chat message",
+                    ChatMessage::new(
+                        MessageId(0),
+                        UserOrAssistant::User(Some(user_1.clone())),
+                        vec![div().child("What can I do here?").into_any_element()],
+                        false,
+                        Box::new(|_, _| {}),
+                    ),
+                ))
+                .child(StoryItem::new(
+                    "User chat message (collapsed)",
+                    ChatMessage::new(
+                        MessageId(0),
+                        UserOrAssistant::User(Some(user_1.clone())),
+                        vec![div().child("What can I do here?").into_any_element()],
+                        true,
+                        Box::new(|_, _| {}),
+                    ),
+                )),
+        )
+        .child(
+            StorySection::new()
+                .child(StoryItem::new(
+                    "Assistant chat message",
+                    ChatMessage::new(
+                        MessageId(0),
+                        UserOrAssistant::Assistant,
+                        vec![div().child("You can talk to me!").into_any_element()],
+                        false,
+                        Box::new(|_, _| {}),
+                    ),
+                ))
+                .child(StoryItem::new(
+                    "Assistant chat message (collapsed)",
+                    ChatMessage::new(
+                        MessageId(0),
+                        UserOrAssistant::Assistant,
+                        vec![div().child(MULTI_LINE_MESSAGE).into_any_element()],
+                        true,
+                        Box::new(|_, _| {}),
+                    ),
+                )),
+        )
+        .child(
+            StorySection::new().child(StoryItem::new(
+                "Conversation between user and assistant",
+                v_flex()
+                    .gap_2()
+                    .child(ChatMessage::new(
+                        MessageId(0),
+                        UserOrAssistant::User(Some(user_1.clone())),
+                        vec![div().child("What is Rust??").into_any_element()],
+                        false,
+                        Box::new(|_, _| {}),
+                    ))
+                    .child(ChatMessage::new(
+                        MessageId(0),
+                        UserOrAssistant::Assistant,
+                        vec![div().child("Rust is a multi-paradigm programming language focused on performance and safety").into_any_element()],
+                        false,
+                        Box::new(|_, _| {}),
+                    ))
+                    .child(ChatMessage::new(
+                        MessageId(0),
+                        UserOrAssistant::User(Some(user_1)),
+                        vec![div().child("Sounds pretty cool!").into_any_element()],
+                        false,
+                        Box::new(|_, _| {}),
+                    )),
+            )),
+        )
+    }
+}
+
+const MULTI_LINE_MESSAGE: &str = "In 2010, the movies nominated for the 82nd Academy Awards, for films released in 2009, were as follows. Note that 2010 nominees were announced for the ceremony happening in that year, but they honor movies from the previous year";

crates/assistant2/src/ui/stories/chat_notice.rs

@@ -0,0 +1,22 @@
+use story::{StoryContainer, StoryItem, StorySection};
+use ui::prelude::*;
+
+use crate::ui::ChatNotice;
+
+pub struct ChatNoticeStory;
+
+impl Render for ChatNoticeStory {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
+        StoryContainer::new(
+            "ChatNotice Story",
+            "crates/assistant2/src/ui/stories/chat_notice.rs",
+        )
+        .child(
+            StorySection::new().child(StoryItem::new(
+                "Project index request",
+                ChatNotice::new("Allow assistant to index your project?")
+                    .meta("Enabling will allow responses more relevant to this project."),
+            )),
+        )
+    }
+}

crates/assistant_tooling/Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "assistant_tooling"
+version = "0.1.0"
+edition = "2021"
+publish = false
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/assistant_tooling.rs"
+
+[dependencies]
+anyhow.workspace = true
+collections.workspace = true
+futures.workspace = true
+gpui.workspace = true
+project.workspace = true
+schemars.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+sum_tree.workspace = true
+util.workspace = true
+
+[dev-dependencies]
+gpui = { workspace = true, features = ["test-support"] }
+project = { workspace = true, features = ["test-support"] }
+settings = { workspace = true, features = ["test-support"] }
+unindent.workspace = true

crates/assistant_tooling/LICENSE-GPL

@@ -0,0 +1 @@
+../../LICENSE-GPL

crates/assistant_tooling/README.md

@@ -0,0 +1,208 @@
+# Assistant Tooling
+
+Bringing OpenAI compatible tool calling to GPUI.
+
+This unlocks:
+
+- **Structured Extraction** of model responses
+- **Validation** of model inputs
+- **Execution** of chosen toolsn
+
+## Overview
+
+Language Models can produce structured outputs that are perfect for calling functions. The most famous of these is OpenAI's tool calling. When make a chat completion you can pass a list of tools available to the model. The model will choose `0..n` tools to help them complete a user's task. It's up to _you_ to create the tools that the model can call.
+
+> **User**: "Hey I need help with implementing a collapsible panel in GPUI"
+>
+> **Assistant**: "Sure, I can help with that. Let me see what I can find."
+>
+> `tool_calls: ["name": "query_codebase", arguments: "{ 'query': 'GPUI collapsible panel' }"]`
+>
+> `result: "['crates/gpui/src/panel.rs:12: impl Panel { ... }', 'crates/gpui/src/panel.rs:20: impl Panel { ... }']"`
+>
+> **Assistant**: "Here are some excerpts from the GPUI codebase that might help you."
+
+This library is designed to facilitate this interaction mode by allowing you to go from `struct` to `tool` with a simple trait, `LanguageModelTool`.
+
+## Example
+
+Let's expose querying a semantic index directly by the model. First, we'll set up some _necessary_ imports
+
+```rust
+use anyhow::Result;
+use assistant_tooling::{LanguageModelTool, ToolRegistry};
+use gpui::{App, AppContext, Task};
+use schemars::JsonSchema;
+use serde::Deserialize;
+use serde_json::json;
+```
+
+Then we'll define the query structure the model must fill in. This _must_ derive `Deserialize` from `serde` and `JsonSchema` from the `schemars` crate.
+
+```rust
+#[derive(Deserialize, JsonSchema)]
+struct CodebaseQuery {
+    query: String,
+}
+```
+
+After that we can define our tool, with the expectation that it will need a `ProjectIndex` to search against. For this example, the index uses the same interface as `semantic_index::ProjectIndex`.
+
+```rust
+struct ProjectIndex {}
+
+impl ProjectIndex {
+    fn new() -> Self {
+        ProjectIndex {}
+    }
+
+    fn search(&self, _query: &str, _limit: usize, _cx: &AppContext) -> Task<Result<Vec<String>>> {
+        // Instead of hooking up a real index, we're going to fake it
+        if _query.contains("gpui") {
+            return Task::ready(Ok(vec![r#"// crates/gpui/src/gpui.rs
+    //! # Welcome to GPUI!
+    //!
+    //! GPUI is a hybrid immediate and retained mode, GPU accelerated, UI framework
+    //! for Rust, designed to support a wide variety of applications
+    "#
+            .to_string()]));
+        }
+        return Task::ready(Ok(vec![]));
+    }
+}
+
+struct ProjectIndexTool {
+    project_index: ProjectIndex,
+}
+```
+
+Now we can implement the `LanguageModelTool` trait for our tool by:
+
+- Defining the `Input` from the model, which is `CodebaseQuery`
+- Defining the `Output`
+- Implementing the `name` and `description` functions to provide the model information when it's choosing a tool
+- Implementing the `execute` function to run the tool
+
+```rust
+impl LanguageModelTool for ProjectIndexTool {
+    type Input = CodebaseQuery;
+    type Output = String;
+
+    fn name(&self) -> String {
+        "query_codebase".to_string()
+    }
+
+    fn description(&self) -> String {
+        "Executes a query against the codebase, returning excerpts related to the query".to_string()
+    }
+
+    fn execute(&self, query: Self::Input, cx: &AppContext) -> Task<Result<Self::Output>> {
+        let results = self.project_index.search(query.query.as_str(), 10, cx);
+
+        cx.spawn(|_cx| async move {
+            let results = results.await?;
+
+            if !results.is_empty() {
+                Ok(results.join("\n"))
+            } else {
+                Ok("No results".to_string())
+            }
+        })
+    }
+}
+```
+
+For the sake of this example, let's look at the types that OpenAI will be passing to us
+
+```rust
+// OpenAI definitions, shown here for demonstration
+#[derive(Deserialize)]
+struct FunctionCall {
+    name: String,
+    args: String,
+}
+
+#[derive(Deserialize, Eq, PartialEq)]
+enum ToolCallType {
+    #[serde(rename = "function")]
+    Function,
+    Other,
+}
+
+#[derive(Deserialize, Clone, Debug, Eq, PartialEq, Hash, Ord, PartialOrd)]
+struct ToolCallId(String);
+
+#[derive(Deserialize)]
+#[serde(tag = "type", rename_all = "snake_case")]
+enum ToolCall {
+    Function {
+        #[allow(dead_code)]
+        id: ToolCallId,
+        function: FunctionCall,
+    },
+    Other {
+        #[allow(dead_code)]
+        id: ToolCallId,
+    },
+}
+
+#[derive(Deserialize)]
+struct AssistantMessage {
+    role: String,
+    content: Option<String>,
+    tool_calls: Option<Vec<ToolCall>>,
+}
+```
+
+When the model wants to call tools, it will pass a list of `ToolCall`s. When those are `function`s that we can handle, we'll pass them to our `ToolRegistry` to get a future that we can await.
+
+```rust
+// Inside `fn main()`
+App::new().run(|cx: &mut AppContext| {
+    let tool = ProjectIndexTool {
+        project_index: ProjectIndex::new(),
+    };
+
+    let mut registry = ToolRegistry::new();
+    let registered = registry.register(tool);
+    assert!(registered.is_ok());
+```
+
+Let's pretend the model sent us back a message requesting
+
+```rust
+let model_response = json!({
+    "role": "assistant",
+    "tool_calls": [
+        {
+            "id": "call_1",
+            "function": {
+                "name": "query_codebase",
+                "args": r#"{"query":"GPUI Task background_executor"}"#
+            },
+            "type": "function"
+        }
+    ]
+});
+
+let message: AssistantMessage = serde_json::from_value(model_response).unwrap();
+
+// We know there's a tool call, so let's skip straight to it for this example
+let tool_calls = message.tool_calls.as_ref().unwrap();
+let tool_call = tool_calls.get(0).unwrap();
+```
+
+We can now use our registry to call the tool.
+
+```rust
+let task = registry.call(
+    tool_call.name,
+    tool_call.args,
+);
+
+cx.spawn(|_cx| async move {
+    let result = task.await?;
+    println!("{}", result.unwrap());
+    Ok(())
+})
+```

crates/assistant_tooling/src/assistant_tooling.rs

@@ -0,0 +1,9 @@
+mod attachment_registry;
+mod project_context;
+mod tool_registry;
+
+pub use attachment_registry::{AttachmentRegistry, LanguageModelAttachment, UserAttachment};
+pub use project_context::ProjectContext;
+pub use tool_registry::{
+    LanguageModelTool, ToolFunctionCall, ToolFunctionDefinition, ToolOutput, ToolRegistry,
+};

crates/assistant_tooling/src/attachment_registry.rs

@@ -0,0 +1,148 @@
+use crate::{ProjectContext, ToolOutput};
+use anyhow::{anyhow, Result};
+use collections::HashMap;
+use futures::future::join_all;
+use gpui::{AnyView, Render, Task, View, WindowContext};
+use std::{
+    any::TypeId,
+    sync::{
+        atomic::{AtomicBool, Ordering::SeqCst},
+        Arc,
+    },
+};
+use util::ResultExt as _;
+
+pub struct AttachmentRegistry {
+    registered_attachments: HashMap<TypeId, RegisteredAttachment>,
+}
+
+pub trait LanguageModelAttachment {
+    type Output: 'static;
+    type View: Render + ToolOutput;
+
+    fn run(&self, cx: &mut WindowContext) -> Task<Result<Self::Output>>;
+
+    fn view(output: Result<Self::Output>, cx: &mut WindowContext) -> View<Self::View>;
+}
+
+/// A collected attachment from running an attachment tool
+pub struct UserAttachment {
+    pub view: AnyView,
+    generate_fn: fn(AnyView, &mut ProjectContext, cx: &mut WindowContext) -> String,
+}
+
+/// Internal representation of an attachment tool to allow us to treat them dynamically
+struct RegisteredAttachment {
+    enabled: AtomicBool,
+    call: Box<dyn Fn(&mut WindowContext) -> Task<Result<UserAttachment>>>,
+}
+
+impl AttachmentRegistry {
+    pub fn new() -> Self {
+        Self {
+            registered_attachments: HashMap::default(),
+        }
+    }
+
+    pub fn register<A: LanguageModelAttachment + 'static>(&mut self, attachment: A) {
+        let call = Box::new(move |cx: &mut WindowContext| {
+            let result = attachment.run(cx);
+
+            cx.spawn(move |mut cx| async move {
+                let result: Result<A::Output> = result.await;
+                let view = cx.update(|cx| A::view(result, cx))?;
+
+                Ok(UserAttachment {
+                    view: view.into(),
+                    generate_fn: generate::<A>,
+                })
+            })
+        });
+
+        self.registered_attachments.insert(
+            TypeId::of::<A>(),
+            RegisteredAttachment {
+                call,
+                enabled: AtomicBool::new(true),
+            },
+        );
+        return;
+
+        fn generate<T: LanguageModelAttachment>(
+            view: AnyView,
+            project: &mut ProjectContext,
+            cx: &mut WindowContext,
+        ) -> String {
+            view.downcast::<T::View>()
+                .unwrap()
+                .update(cx, |view, cx| T::View::generate(view, project, cx))
+        }
+    }
+
+    pub fn set_attachment_tool_enabled<A: LanguageModelAttachment + 'static>(
+        &self,
+        is_enabled: bool,
+    ) {
+        if let Some(attachment) = self.registered_attachments.get(&TypeId::of::<A>()) {
+            attachment.enabled.store(is_enabled, SeqCst);
+        }
+    }
+
+    pub fn is_attachment_tool_enabled<A: LanguageModelAttachment + 'static>(&self) -> bool {
+        if let Some(attachment) = self.registered_attachments.get(&TypeId::of::<A>()) {
+            attachment.enabled.load(SeqCst)
+        } else {
+            false
+        }
+    }
+
+    pub fn call<A: LanguageModelAttachment + 'static>(
+        &self,
+        cx: &mut WindowContext,
+    ) -> Task<Result<UserAttachment>> {
+        let Some(attachment) = self.registered_attachments.get(&TypeId::of::<A>()) else {
+            return Task::ready(Err(anyhow!("no attachment tool")));
+        };
+
+        (attachment.call)(cx)
+    }
+
+    pub fn call_all_attachment_tools(
+        self: Arc<Self>,
+        cx: &mut WindowContext<'_>,
+    ) -> Task<Result<Vec<UserAttachment>>> {
+        let this = self.clone();
+        cx.spawn(|mut cx| async move {
+            let attachment_tasks = cx.update(|cx| {
+                let mut tasks = Vec::new();
+                for attachment in this
+                    .registered_attachments
+                    .values()
+                    .filter(|attachment| attachment.enabled.load(SeqCst))
+                {
+                    tasks.push((attachment.call)(cx))
+                }
+
+                tasks
+            })?;
+
+            let attachments = join_all(attachment_tasks.into_iter()).await;
+
+            Ok(attachments
+                .into_iter()
+                .filter_map(|attachment| attachment.log_err())
+                .collect())
+        })
+    }
+}
+
+impl UserAttachment {
+    pub fn generate(&self, output: &mut ProjectContext, cx: &mut WindowContext) -> Option<String> {
+        let result = (self.generate_fn)(self.view.clone(), output, cx);
+        if result.is_empty() {
+            None
+        } else {
+            Some(result)
+        }
+    }
+}

crates/assistant_tooling/src/project_context.rs

@@ -0,0 +1,296 @@
+use anyhow::{anyhow, Result};
+use gpui::{AppContext, Model, Task, WeakModel};
+use project::{Fs, Project, ProjectPath, Worktree};
+use std::{cmp::Ordering, fmt::Write as _, ops::Range, sync::Arc};
+use sum_tree::TreeMap;
+
+pub struct ProjectContext {
+    files: TreeMap<ProjectPath, PathState>,
+    project: WeakModel<Project>,
+    fs: Arc<dyn Fs>,
+}
+
+#[derive(Debug, Clone)]
+enum PathState {
+    PathOnly,
+    EntireFile,
+    Excerpts { ranges: Vec<Range<usize>> },
+}
+
+impl ProjectContext {
+    pub fn new(project: WeakModel<Project>, fs: Arc<dyn Fs>) -> Self {
+        Self {
+            files: TreeMap::default(),
+            fs,
+            project,
+        }
+    }
+
+    pub fn add_path(&mut self, project_path: ProjectPath) {
+        if self.files.get(&project_path).is_none() {
+            self.files.insert(project_path, PathState::PathOnly);
+        }
+    }
+
+    pub fn add_excerpts(&mut self, project_path: ProjectPath, new_ranges: &[Range<usize>]) {
+        let previous_state = self
+            .files
+            .get(&project_path)
+            .unwrap_or(&PathState::PathOnly);
+
+        let mut ranges = match previous_state {
+            PathState::EntireFile => return,
+            PathState::PathOnly => Vec::new(),
+            PathState::Excerpts { ranges } => ranges.to_vec(),
+        };
+
+        for new_range in new_ranges {
+            let ix = ranges.binary_search_by(|probe| {
+                if probe.end < new_range.start {
+                    Ordering::Less
+                } else if probe.start > new_range.end {
+                    Ordering::Greater
+                } else {
+                    Ordering::Equal
+                }
+            });
+
+            match ix {
+                Ok(mut ix) => {
+                    let existing = &mut ranges[ix];
+                    existing.start = existing.start.min(new_range.start);
+                    existing.end = existing.end.max(new_range.end);
+                    while ix + 1 < ranges.len() && ranges[ix + 1].start <= ranges[ix].end {
+                        ranges[ix].end = ranges[ix].end.max(ranges[ix + 1].end);
+                        ranges.remove(ix + 1);
+                    }
+                    while ix > 0 && ranges[ix - 1].end >= ranges[ix].start {
+                        ranges[ix].start = ranges[ix].start.min(ranges[ix - 1].start);
+                        ranges.remove(ix - 1);
+                        ix -= 1;
+                    }
+                }
+                Err(ix) => {
+                    ranges.insert(ix, new_range.clone());
+                }
+            }
+        }
+
+        self.files
+            .insert(project_path, PathState::Excerpts { ranges });
+    }
+
+    pub fn add_file(&mut self, project_path: ProjectPath) {
+        self.files.insert(project_path, PathState::EntireFile);
+    }
+
+    pub fn generate_system_message(&self, cx: &mut AppContext) -> Task<Result<String>> {
+        let project = self
+            .project
+            .upgrade()
+            .ok_or_else(|| anyhow!("project dropped"));
+        let files = self.files.clone();
+        let fs = self.fs.clone();
+        cx.spawn(|cx| async move {
+            let project = project?;
+            let mut result = "project structure:\n".to_string();
+
+            let mut last_worktree: Option<Model<Worktree>> = None;
+            for (project_path, path_state) in files.iter() {
+                if let Some(worktree) = &last_worktree {
+                    if worktree.read_with(&cx, |tree, _| tree.id())? != project_path.worktree_id {
+                        last_worktree = None;
+                    }
+                }
+
+                let worktree;
+                if let Some(last_worktree) = &last_worktree {
+                    worktree = last_worktree.clone();
+                } else if let Some(tree) = project.read_with(&cx, |project, cx| {
+                    project.worktree_for_id(project_path.worktree_id, cx)
+                })? {
+                    worktree = tree;
+                    last_worktree = Some(worktree.clone());
+                    let worktree_name =
+                        worktree.read_with(&cx, |tree, _cx| tree.root_name().to_string())?;
+                    writeln!(&mut result, "# {}", worktree_name).unwrap();
+                } else {
+                    continue;
+                }
+
+                let worktree_abs_path = worktree.read_with(&cx, |tree, _cx| tree.abs_path())?;
+                let path = &project_path.path;
+                writeln!(&mut result, "## {}", path.display()).unwrap();
+
+                match path_state {
+                    PathState::PathOnly => {}
+                    PathState::EntireFile => {
+                        let text = fs.load(&worktree_abs_path.join(&path)).await?;
+                        writeln!(&mut result, "~~~\n{text}\n~~~").unwrap();
+                    }
+                    PathState::Excerpts { ranges } => {
+                        let text = fs.load(&worktree_abs_path.join(&path)).await?;
+
+                        writeln!(&mut result, "~~~").unwrap();
+
+                        // Assumption: ranges are in order, not overlapping
+                        let mut prev_range_end = 0;
+                        for range in ranges {
+                            if range.start > prev_range_end {
+                                writeln!(&mut result, "...").unwrap();
+                                prev_range_end = range.end;
+                            }
+
+                            let mut start = range.start;
+                            let mut end = range.end.min(text.len());
+                            while !text.is_char_boundary(start) {
+                                start += 1;
+                            }
+                            while !text.is_char_boundary(end) {
+                                end -= 1;
+                            }
+                            result.push_str(&text[start..end]);
+                            if !result.ends_with('\n') {
+                                result.push('\n');
+                            }
+                        }
+
+                        if prev_range_end < text.len() {
+                            writeln!(&mut result, "...").unwrap();
+                        }
+
+                        writeln!(&mut result, "~~~").unwrap();
+                    }
+                }
+            }
+            Ok(result)
+        })
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use std::path::Path;
+
+    use super::*;
+    use gpui::TestAppContext;
+    use project::FakeFs;
+    use serde_json::json;
+    use settings::SettingsStore;
+
+    use unindent::Unindent as _;
+
+    #[gpui::test]
+    async fn test_system_message_generation(cx: &mut TestAppContext) {
+        init_test(cx);
+
+        let file_3_contents = r#"
+            fn test1() {}
+            fn test2() {}
+            fn test3() {}
+        "#
+        .unindent();
+
+        let fs = FakeFs::new(cx.executor());
+        fs.insert_tree(
+            "/code",
+            json!({
+                "root1": {
+                    "lib": {
+                        "file1.rs": "mod example;",
+                        "file2.rs": "",
+                    },
+                    "test": {
+                        "file3.rs": file_3_contents,
+                    }
+                },
+                "root2": {
+                    "src": {
+                        "main.rs": ""
+                    }
+                }
+            }),
+        )
+        .await;
+
+        let project = Project::test(
+            fs.clone(),
+            ["/code/root1".as_ref(), "/code/root2".as_ref()],
+            cx,
+        )
+        .await;
+
+        let worktree_ids = project.read_with(cx, |project, cx| {
+            project
+                .worktrees()
+                .map(|worktree| worktree.read(cx).id())
+                .collect::<Vec<_>>()
+        });
+
+        let mut ax = ProjectContext::new(project.downgrade(), fs);
+
+        ax.add_file(ProjectPath {
+            worktree_id: worktree_ids[0],
+            path: Path::new("lib/file1.rs").into(),
+        });
+
+        let message = cx
+            .update(|cx| ax.generate_system_message(cx))
+            .await
+            .unwrap();
+        assert_eq!(
+            r#"
+            project structure:
+            # root1
+            ## lib/file1.rs
+            ~~~
+            mod example;
+            ~~~
+            "#
+            .unindent(),
+            message
+        );
+
+        ax.add_excerpts(
+            ProjectPath {
+                worktree_id: worktree_ids[0],
+                path: Path::new("test/file3.rs").into(),
+            },
+            &[
+                file_3_contents.find("fn test2").unwrap()
+                    ..file_3_contents.find("fn test3").unwrap(),
+            ],
+        );
+
+        let message = cx
+            .update(|cx| ax.generate_system_message(cx))
+            .await
+            .unwrap();
+        assert_eq!(
+            r#"
+            project structure:
+            # root1
+            ## lib/file1.rs
+            ~~~
+            mod example;
+            ~~~
+            ## test/file3.rs
+            ~~~
+            ...
+            fn test2() {}
+            ...
+            ~~~
+            "#
+            .unindent(),
+            message
+        );
+    }
+
+    fn init_test(cx: &mut TestAppContext) {
+        cx.update(|cx| {
+            let settings_store = SettingsStore::test(cx);
+            cx.set_global(settings_store);
+            Project::init_settings(cx);
+        });
+    }
+}

crates/assistant_tooling/src/tool_registry.rs

@@ -0,0 +1,431 @@
+use anyhow::{anyhow, Result};
+use gpui::{
+    div, AnyElement, AnyView, IntoElement, ParentElement, Render, Styled, Task, View, WindowContext,
+};
+use schemars::{schema::RootSchema, schema_for, JsonSchema};
+use serde::Deserialize;
+use std::{
+    any::TypeId,
+    collections::HashMap,
+    fmt::Display,
+    sync::atomic::{AtomicBool, Ordering::SeqCst},
+};
+
+use crate::ProjectContext;
+
+pub struct ToolRegistry {
+    registered_tools: HashMap<String, RegisteredTool>,
+}
+
+#[derive(Default, Deserialize)]
+pub struct ToolFunctionCall {
+    pub id: String,
+    pub name: String,
+    pub arguments: String,
+    #[serde(skip)]
+    pub result: Option<ToolFunctionCallResult>,
+}
+
+pub enum ToolFunctionCallResult {
+    NoSuchTool,
+    ParsingFailed,
+    Finished {
+        view: AnyView,
+        generate_fn: fn(AnyView, &mut ProjectContext, &mut WindowContext) -> String,
+    },
+}
+
+#[derive(Clone)]
+pub struct ToolFunctionDefinition {
+    pub name: String,
+    pub description: String,
+    pub parameters: RootSchema,
+}
+
+pub trait LanguageModelTool {
+    /// The input type that will be passed in to `execute` when the tool is called
+    /// by the language model.
+    type Input: for<'de> Deserialize<'de> + JsonSchema;
+
+    /// The output returned by executing the tool.
+    type Output: 'static;
+
+    type View: Render + ToolOutput;
+
+    /// Returns the name of the tool.
+    ///
+    /// This name is exposed to the language model to allow the model to pick
+    /// which tools to use. As this name is used to identify the tool within a
+    /// tool registry, it should be unique.
+    fn name(&self) -> String;
+
+    /// Returns the description of the tool.
+    ///
+    /// This can be used to _prompt_ the model as to what the tool does.
+    fn description(&self) -> String;
+
+    /// Returns the OpenAI Function definition for the tool, for direct use with OpenAI's API.
+    fn definition(&self) -> ToolFunctionDefinition {
+        let root_schema = schema_for!(Self::Input);
+
+        ToolFunctionDefinition {
+            name: self.name(),
+            description: self.description(),
+            parameters: root_schema,
+        }
+    }
+
+    /// Executes the tool with the given input.
+    fn execute(&self, input: &Self::Input, cx: &mut WindowContext) -> Task<Result<Self::Output>>;
+
+    fn output_view(
+        input: Self::Input,
+        output: Result<Self::Output>,
+        cx: &mut WindowContext,
+    ) -> View<Self::View>;
+
+    fn render_running(_cx: &mut WindowContext) -> impl IntoElement {
+        div()
+    }
+}
+
+pub trait ToolOutput: Sized {
+    fn generate(&self, project: &mut ProjectContext, cx: &mut WindowContext) -> String;
+}
+
+struct RegisteredTool {
+    enabled: AtomicBool,
+    type_id: TypeId,
+    call: Box<dyn Fn(&ToolFunctionCall, &mut WindowContext) -> Task<Result<ToolFunctionCall>>>,
+    render_running: fn(&mut WindowContext) -> gpui::AnyElement,
+    definition: ToolFunctionDefinition,
+}
+
+impl ToolRegistry {
+    pub fn new() -> Self {
+        Self {
+            registered_tools: HashMap::new(),
+        }
+    }
+
+    pub fn set_tool_enabled<T: 'static + LanguageModelTool>(&self, is_enabled: bool) {
+        for tool in self.registered_tools.values() {
+            if tool.type_id == TypeId::of::<T>() {
+                tool.enabled.store(is_enabled, SeqCst);
+                return;
+            }
+        }
+    }
+
+    pub fn is_tool_enabled<T: 'static + LanguageModelTool>(&self) -> bool {
+        for tool in self.registered_tools.values() {
+            if tool.type_id == TypeId::of::<T>() {
+                return tool.enabled.load(SeqCst);
+            }
+        }
+        false
+    }
+
+    pub fn definitions(&self) -> Vec<ToolFunctionDefinition> {
+        self.registered_tools
+            .values()
+            .filter(|tool| tool.enabled.load(SeqCst))
+            .map(|tool| tool.definition.clone())
+            .collect()
+    }
+
+    pub fn render_tool_call(
+        &self,
+        tool_call: &ToolFunctionCall,
+        cx: &mut WindowContext,
+    ) -> AnyElement {
+        match &tool_call.result {
+            Some(result) => div()
+                .p_2()
+                .child(result.into_any_element(&tool_call.name))
+                .into_any_element(),
+            None => self
+                .registered_tools
+                .get(&tool_call.name)
+                .map(|tool| (tool.render_running)(cx))
+                .unwrap_or_else(|| div().into_any_element()),
+        }
+    }
+
+    pub fn register<T: 'static + LanguageModelTool>(
+        &mut self,
+        tool: T,
+        _cx: &mut WindowContext,
+    ) -> Result<()> {
+        let name = tool.name();
+        let registered_tool = RegisteredTool {
+            type_id: TypeId::of::<T>(),
+            definition: tool.definition(),
+            enabled: AtomicBool::new(true),
+            call: Box::new(
+                move |tool_call: &ToolFunctionCall, cx: &mut WindowContext| {
+                    let name = tool_call.name.clone();
+                    let arguments = tool_call.arguments.clone();
+                    let id = tool_call.id.clone();
+
+                    let Ok(input) = serde_json::from_str::<T::Input>(arguments.as_str()) else {
+                        return Task::ready(Ok(ToolFunctionCall {
+                            id,
+                            name: name.clone(),
+                            arguments,
+                            result: Some(ToolFunctionCallResult::ParsingFailed),
+                        }));
+                    };
+
+                    let result = tool.execute(&input, cx);
+
+                    cx.spawn(move |mut cx| async move {
+                        let result: Result<T::Output> = result.await;
+                        let view = cx.update(|cx| T::output_view(input, result, cx))?;
+
+                        Ok(ToolFunctionCall {
+                            id,
+                            name: name.clone(),
+                            arguments,
+                            result: Some(ToolFunctionCallResult::Finished {
+                                view: view.into(),
+                                generate_fn: generate::<T>,
+                            }),
+                        })
+                    })
+                },
+            ),
+            render_running: render_running::<T>,
+        };
+
+        let previous = self.registered_tools.insert(name.clone(), registered_tool);
+        if previous.is_some() {
+            return Err(anyhow!("already registered a tool with name {}", name));
+        }
+
+        return Ok(());
+
+        fn render_running<T: LanguageModelTool>(cx: &mut WindowContext) -> AnyElement {
+            T::render_running(cx).into_any_element()
+        }
+
+        fn generate<T: LanguageModelTool>(
+            view: AnyView,
+            project: &mut ProjectContext,
+            cx: &mut WindowContext,
+        ) -> String {
+            view.downcast::<T::View>()
+                .unwrap()
+                .update(cx, |view, cx| T::View::generate(view, project, cx))
+        }
+    }
+
+    /// Task yields an error if the window for the given WindowContext is closed before the task completes.
+    pub fn call(
+        &self,
+        tool_call: &ToolFunctionCall,
+        cx: &mut WindowContext,
+    ) -> Task<Result<ToolFunctionCall>> {
+        let name = tool_call.name.clone();
+        let arguments = tool_call.arguments.clone();
+        let id = tool_call.id.clone();
+
+        let tool = match self.registered_tools.get(&name) {
+            Some(tool) => tool,
+            None => {
+                let name = name.clone();
+                return Task::ready(Ok(ToolFunctionCall {
+                    id,
+                    name: name.clone(),
+                    arguments,
+                    result: Some(ToolFunctionCallResult::NoSuchTool),
+                }));
+            }
+        };
+
+        (tool.call)(tool_call, cx)
+    }
+}
+
+impl ToolFunctionCallResult {
+    pub fn generate(
+        &self,
+        name: &String,
+        project: &mut ProjectContext,
+        cx: &mut WindowContext,
+    ) -> String {
+        match self {
+            ToolFunctionCallResult::NoSuchTool => format!("No tool for {name}"),
+            ToolFunctionCallResult::ParsingFailed => {
+                format!("Unable to parse arguments for {name}")
+            }
+            ToolFunctionCallResult::Finished { generate_fn, view } => {
+                (generate_fn)(view.clone(), project, cx)
+            }
+        }
+    }
+
+    fn into_any_element(&self, name: &String) -> AnyElement {
+        match self {
+            ToolFunctionCallResult::NoSuchTool => {
+                format!("Language Model attempted to call {name}").into_any_element()
+            }
+            ToolFunctionCallResult::ParsingFailed => {
+                format!("Language Model called {name} with bad arguments").into_any_element()
+            }
+            ToolFunctionCallResult::Finished { view, .. } => view.clone().into_any_element(),
+        }
+    }
+}
+
+impl Display for ToolFunctionDefinition {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let schema = serde_json::to_string(&self.parameters).ok();
+        let schema = schema.unwrap_or("None".to_string());
+        write!(f, "Name: {}:\n", self.name)?;
+        write!(f, "Description: {}\n", self.description)?;
+        write!(f, "Parameters: {}", schema)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use gpui::{div, prelude::*, Render, TestAppContext};
+    use gpui::{EmptyView, View};
+    use schemars::schema_for;
+    use schemars::JsonSchema;
+    use serde::{Deserialize, Serialize};
+    use serde_json::json;
+
+    #[derive(Deserialize, Serialize, JsonSchema)]
+    struct WeatherQuery {
+        location: String,
+        unit: String,
+    }
+
+    struct WeatherTool {
+        current_weather: WeatherResult,
+    }
+
+    #[derive(Clone, Serialize, Deserialize, PartialEq, Debug)]
+    struct WeatherResult {
+        location: String,
+        temperature: f64,
+        unit: String,
+    }
+
+    struct WeatherView {
+        result: WeatherResult,
+    }
+
+    impl Render for WeatherView {
+        fn render(&mut self, _cx: &mut gpui::ViewContext<Self>) -> impl IntoElement {
+            div().child(format!("temperature: {}", self.result.temperature))
+        }
+    }
+
+    impl ToolOutput for WeatherView {
+        fn generate(&self, _output: &mut ProjectContext, _cx: &mut WindowContext) -> String {
+            serde_json::to_string(&self.result).unwrap()
+        }
+    }
+
+    impl LanguageModelTool for WeatherTool {
+        type Input = WeatherQuery;
+        type Output = WeatherResult;
+        type View = WeatherView;
+
+        fn name(&self) -> String {
+            "get_current_weather".to_string()
+        }
+
+        fn description(&self) -> String {
+            "Fetches the current weather for a given location.".to_string()
+        }
+
+        fn execute(
+            &self,
+            input: &Self::Input,
+            _cx: &mut WindowContext,
+        ) -> Task<Result<Self::Output>> {
+            let _location = input.location.clone();
+            let _unit = input.unit.clone();
+
+            let weather = self.current_weather.clone();
+
+            Task::ready(Ok(weather))
+        }
+
+        fn output_view(
+            _input: Self::Input,
+            result: Result<Self::Output>,
+            cx: &mut WindowContext,
+        ) -> View<Self::View> {
+            cx.new_view(|_cx| {
+                let result = result.unwrap();
+                WeatherView { result }
+            })
+        }
+    }
+
+    #[gpui::test]
+    async fn test_openai_weather_example(cx: &mut TestAppContext) {
+        cx.background_executor.run_until_parked();
+        let (_, cx) = cx.add_window_view(|_cx| EmptyView);
+
+        let tool = WeatherTool {
+            current_weather: WeatherResult {
+                location: "San Francisco".to_string(),
+                temperature: 21.0,
+                unit: "Celsius".to_string(),
+            },
+        };
+
+        let tools = vec![tool.definition()];
+        assert_eq!(tools.len(), 1);
+
+        let expected = ToolFunctionDefinition {
+            name: "get_current_weather".to_string(),
+            description: "Fetches the current weather for a given location.".to_string(),
+            parameters: schema_for!(WeatherQuery),
+        };
+
+        assert_eq!(tools[0].name, expected.name);
+        assert_eq!(tools[0].description, expected.description);
+
+        let expected_schema = serde_json::to_value(&tools[0].parameters).unwrap();
+
+        assert_eq!(
+            expected_schema,
+            json!({
+                "$schema": "http://json-schema.org/draft-07/schema#",
+                "title": "WeatherQuery",
+                "type": "object",
+                "properties": {
+                    "location": {
+                        "type": "string"
+                    },
+                    "unit": {
+                        "type": "string"
+                    }
+                },
+                "required": ["location", "unit"]
+            })
+        );
+
+        let args = json!({
+            "location": "San Francisco",
+            "unit": "Celsius"
+        });
+
+        let query: WeatherQuery = serde_json::from_value(args).unwrap();
+
+        let result = cx.update(|cx| tool.execute(&query, cx)).await;
+
+        assert!(result.is_ok());
+        let result = result.unwrap();
+
+        assert_eq!(result, tool.current_weather);
+    }
+}

crates/auto_update/src/auto_update.rs

@@ -15,7 +15,7 @@ use markdown_preview::markdown_preview_view::{MarkdownPreviewMode, MarkdownPrevi
 use schemars::JsonSchema;
 use serde::Deserialize;
 use serde_derive::Serialize;
-use smol::io::AsyncReadExt;
+use smol::{fs, io::AsyncReadExt};
 
 use settings::{Settings, SettingsSources, SettingsStore};
 use smol::{fs::File, process::Command};
@@ -24,6 +24,7 @@ use release_channel::{AppCommitSha, AppVersion, ReleaseChannel};
 use std::{
     env::consts::{ARCH, OS},
     ffi::OsString,
+    path::PathBuf,
     sync::Arc,
     time::Duration,
 };
@@ -32,6 +33,7 @@ use util::{
     http::{HttpClient, HttpClientWithUrl},
     ResultExt,
 };
+use workspace::notifications::NotificationId;
 use workspace::Workspace;
 
 const SHOULD_SHOW_UPDATE_NOTIFICATION_KEY: &str = "auto-updater-should-show-updated-notification";
@@ -220,9 +222,9 @@ fn view_release_notes_locally(workspace: &mut Workspace, cx: &mut ViewContext<Wo
                     workspace
                         .update(&mut cx, |workspace, cx| {
                             let project = workspace.project().clone();
-                            let buffer = project
-                                .update(cx, |project, cx| project.create_buffer("", markdown, cx))
-                                .expect("creating buffers on a local workspace always succeeds");
+                            let buffer = project.update(cx, |project, cx| {
+                                project.create_local_buffer("", markdown, cx)
+                            });
                             buffer.update(cx, |buffer, cx| {
                                 buffer.edit([(0..0, body.release_notes)], None, cx)
                             });
@@ -242,7 +244,7 @@ fn view_release_notes_locally(workspace: &mut Workspace, cx: &mut ViewContext<Wo
                                 Some(tab_description),
                                 cx,
                             );
-                            workspace.add_item_to_active_pane(Box::new(view.clone()), cx);
+                            workspace.add_item_to_active_pane(Box::new(view.clone()), None, cx);
                             cx.notify();
                         })
                         .log_err();
@@ -262,9 +264,11 @@ pub fn notify_of_any_new_update(cx: &mut ViewContext<Workspace>) -> Option<()> {
         let should_show_notification = should_show_notification.await?;
         if should_show_notification {
             workspace.update(&mut cx, |workspace, cx| {
-                workspace.show_notification(0, cx, |cx| {
-                    cx.new_view(|_| UpdateNotification::new(version))
-                });
+                workspace.show_notification(
+                    NotificationId::unique::<UpdateNotification>(),
+                    cx,
+                    |cx| cx.new_view(|_| UpdateNotification::new(version)),
+                );
                 updater
                     .read(cx)
                     .set_should_show_update_notification(false, cx)
@@ -337,9 +341,15 @@ impl AutoUpdater {
             (this.http_client.clone(), this.current_version)
         })?;
 
+        let asset = match OS {
+            "linux" => format!("zed-linux-{}.tar.gz", ARCH),
+            "macos" => "Zed.dmg".into(),
+            _ => return Err(anyhow!("auto-update not supported for OS {:?}", OS)),
+        };
+
         let mut url_string = client.build_url(&format!(
-            "/api/releases/latest?asset=Zed.dmg&os={}&arch={}",
-            OS, ARCH
+            "/api/releases/latest?asset={}&os={}&arch={}",
+            asset, OS, ARCH
         ));
         cx.update(|cx| {
             if let Some(param) = ReleaseChannel::try_global(cx)
@@ -358,6 +368,7 @@ impl AutoUpdater {
             .read_to_end(&mut body)
             .await
             .context("error reading release")?;
+
         let release: JsonRelease =
             serde_json::from_slice(body.as_slice()).context("error deserializing release")?;
 
@@ -386,81 +397,18 @@ impl AutoUpdater {
         let temp_dir = tempfile::Builder::new()
             .prefix("zed-auto-update")
             .tempdir()?;
-        let dmg_path = temp_dir.path().join("Zed.dmg");
-        let mount_path = temp_dir.path().join("Zed");
-        let running_app_path = ZED_APP_PATH
-            .clone()
-            .map_or_else(|| cx.update(|cx| cx.app_path())?, Ok)?;
-        let running_app_filename = running_app_path
-            .file_name()
-            .ok_or_else(|| anyhow!("invalid running app path"))?;
-        let mut mounted_app_path: OsString = mount_path.join(running_app_filename).into();
-        mounted_app_path.push("/");
-
-        let mut dmg_file = File::create(&dmg_path).await?;
-
-        let (installation_id, release_channel, telemetry) = cx.update(|cx| {
-            let installation_id = Client::global(cx).telemetry().installation_id();
-            let release_channel = ReleaseChannel::try_global(cx)
-                .map(|release_channel| release_channel.display_name());
-            let telemetry = TelemetrySettings::get_global(cx).metrics;
-
-            (installation_id, release_channel, telemetry)
-        })?;
-
-        let request_body = AsyncBody::from(serde_json::to_string(&UpdateRequestBody {
-            installation_id,
-            release_channel,
-            telemetry,
-        })?);
-
-        let mut response = client.get(&release.url, request_body, true).await?;
-        smol::io::copy(response.body_mut(), &mut dmg_file).await?;
-        log::info!("downloaded update. path:{:?}", dmg_path);
+        let downloaded_asset = download_release(&temp_dir, release, &asset, client, &cx).await?;
 
         this.update(&mut cx, |this, cx| {
             this.status = AutoUpdateStatus::Installing;
             cx.notify();
         })?;
 
-        let output = Command::new("hdiutil")
-            .args(&["attach", "-nobrowse"])
-            .arg(&dmg_path)
-            .arg("-mountroot")
-            .arg(&temp_dir.path())
-            .output()
-            .await?;
-        if !output.status.success() {
-            Err(anyhow!(
-                "failed to mount: {:?}",
-                String::from_utf8_lossy(&output.stderr)
-            ))?;
-        }
-
-        let output = Command::new("rsync")
-            .args(&["-av", "--delete"])
-            .arg(&mounted_app_path)
-            .arg(&running_app_path)
-            .output()
-            .await?;
-        if !output.status.success() {
-            Err(anyhow!(
-                "failed to copy app: {:?}",
-                String::from_utf8_lossy(&output.stderr)
-            ))?;
-        }
-
-        let output = Command::new("hdiutil")
-            .args(&["detach"])
-            .arg(&mount_path)
-            .output()
-            .await?;
-        if !output.status.success() {
-            Err(anyhow!(
-                "failed to unmount: {:?}",
-                String::from_utf8_lossy(&output.stderr)
-            ))?;
-        }
+        match OS {
+            "macos" => install_release_macos(&temp_dir, downloaded_asset, &cx).await,
+            "linux" => install_release_linux(&temp_dir, downloaded_asset, &cx).await,
+            _ => Err(anyhow!("not supported: {:?}", OS)),
+        }?;
 
         this.update(&mut cx, |this, cx| {
             this.set_should_show_update_notification(true, cx)
@@ -468,6 +416,7 @@ impl AutoUpdater {
             this.status = AutoUpdateStatus::Updated;
             cx.notify();
         })?;
+
         Ok(())
     }
 
@@ -501,3 +450,150 @@ impl AutoUpdater {
         })
     }
 }
+
+async fn download_release(
+    temp_dir: &tempfile::TempDir,
+    release: JsonRelease,
+    target_filename: &str,
+    client: Arc<HttpClientWithUrl>,
+    cx: &AsyncAppContext,
+) -> Result<PathBuf> {
+    let target_path = temp_dir.path().join(target_filename);
+    let mut target_file = File::create(&target_path).await?;
+
+    let (installation_id, release_channel, telemetry) = cx.update(|cx| {
+        let installation_id = Client::global(cx).telemetry().installation_id();
+        let release_channel =
+            ReleaseChannel::try_global(cx).map(|release_channel| release_channel.display_name());
+        let telemetry = TelemetrySettings::get_global(cx).metrics;
+
+        (installation_id, release_channel, telemetry)
+    })?;
+
+    let request_body = AsyncBody::from(serde_json::to_string(&UpdateRequestBody {
+        installation_id,
+        release_channel,
+        telemetry,
+    })?);
+
+    let mut response = client.get(&release.url, request_body, true).await?;
+    smol::io::copy(response.body_mut(), &mut target_file).await?;
+    log::info!("downloaded update. path:{:?}", target_path);
+
+    Ok(target_path)
+}
+
+async fn install_release_linux(
+    temp_dir: &tempfile::TempDir,
+    downloaded_tar_gz: PathBuf,
+    cx: &AsyncAppContext,
+) -> Result<()> {
+    let channel = cx.update(|cx| ReleaseChannel::global(cx).dev_name())?;
+    let home_dir = PathBuf::from(std::env::var("HOME").context("no HOME env var set")?);
+
+    let extracted = temp_dir.path().join("zed");
+    fs::create_dir_all(&extracted)
+        .await
+        .context("failed to create directory into which to extract update")?;
+
+    let output = Command::new("tar")
+        .arg("-xzf")
+        .arg(&downloaded_tar_gz)
+        .arg("-C")
+        .arg(&extracted)
+        .output()
+        .await?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "failed to extract {:?} to {:?}: {:?}",
+        downloaded_tar_gz,
+        extracted,
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    let suffix = if channel != "stable" {
+        format!("-{}", channel)
+    } else {
+        String::default()
+    };
+    let app_folder_name = format!("zed{}.app", suffix);
+
+    let from = extracted.join(&app_folder_name);
+    let to = home_dir.join(".local");
+
+    let output = Command::new("rsync")
+        .args(&["-av", "--delete"])
+        .arg(&from)
+        .arg(&to)
+        .output()
+        .await?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "failed to copy Zed update from {:?} to {:?}: {:?}",
+        from,
+        to,
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    Ok(())
+}
+
+async fn install_release_macos(
+    temp_dir: &tempfile::TempDir,
+    downloaded_dmg: PathBuf,
+    cx: &AsyncAppContext,
+) -> Result<()> {
+    let running_app_path = ZED_APP_PATH
+        .clone()
+        .map_or_else(|| cx.update(|cx| cx.app_path())?, Ok)?;
+    let running_app_filename = running_app_path
+        .file_name()
+        .ok_or_else(|| anyhow!("invalid running app path"))?;
+
+    let mount_path = temp_dir.path().join("Zed");
+    let mut mounted_app_path: OsString = mount_path.join(running_app_filename).into();
+
+    mounted_app_path.push("/");
+    let output = Command::new("hdiutil")
+        .args(&["attach", "-nobrowse"])
+        .arg(&downloaded_dmg)
+        .arg("-mountroot")
+        .arg(&temp_dir.path())
+        .output()
+        .await?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "failed to mount: {:?}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    let output = Command::new("rsync")
+        .args(&["-av", "--delete"])
+        .arg(&mounted_app_path)
+        .arg(&running_app_path)
+        .output()
+        .await?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "failed to copy app: {:?}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    let output = Command::new("hdiutil")
+        .args(&["detach"])
+        .arg(&mount_path)
+        .output()
+        .await?;
+
+    anyhow::ensure!(
+        output.status.success(),
+        "failed to unount: {:?}",
+        String::from_utf8_lossy(&output.stderr)
+    );
+
+    Ok(())
+}

crates/breadcrumbs/src/breadcrumbs.rs

@@ -33,7 +33,7 @@ impl EventEmitter<ToolbarItemEvent> for Breadcrumbs {}
 impl Render for Breadcrumbs {
     fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
         const MAX_SEGMENTS: usize = 12;
-        let element = h_flex().text_ui();
+        let element = h_flex().text_ui(cx);
         let Some(active_item) = self.active_item.as_ref() else {
             return element;
         };
@@ -52,12 +52,19 @@ impl Render for Breadcrumbs {
                 Some(BreadcrumbText {
                     text: "⋯".into(),
                     highlights: None,
+                    font: None,
                 }),
             );
         }
 
         let highlighted_segments = segments.into_iter().map(|segment| {
             let mut text_style = cx.text_style();
+            if let Some(font) = segment.font {
+                text_style.font_family = font.family;
+                text_style.font_features = font.features;
+                text_style.font_style = font.style;
+                text_style.font_weight = font.weight;
+            }
             text_style.color = Color::Muted.color(cx);
 
             StyledText::new(segment.text.replace('\n', "␤"))

crates/call/src/call.rs

@@ -432,7 +432,9 @@ impl ActiveCall {
         room: Option<Model<Room>>,
         cx: &mut ModelContext<Self>,
     ) -> Task<Result<()>> {
-        if room.as_ref() != self.room.as_ref().map(|room| &room.0) {
+        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() {
@@ -462,8 +464,6 @@ impl ActiveCall {
                 self.room = None;
                 Task::ready(Ok(()))
             }
-        } else {
-            Task::ready(Ok(()))
         }
     }
 

crates/call/src/room.rs

@@ -1182,7 +1182,7 @@ impl Room {
         cx.emit(Event::RemoteProjectJoined { project_id: id });
         cx.spawn(move |this, mut cx| async move {
             let project =
-                Project::remote(id, client, user_store, language_registry, fs, cx.clone()).await?;
+                Project::in_room(id, client, user_store, language_registry, fs, cx.clone()).await?;
 
             this.update(&mut cx, |this, cx| {
                 this.joined_projects.retain(|project| {
@@ -1203,14 +1203,25 @@ impl Room {
         project: Model<Project>,
         cx: &mut ModelContext<Self>,
     ) -> Task<Result<u64>> {
-        if let Some(project_id) = project.read(cx).remote_id() {
-            return Task::ready(Ok(project_id));
-        }
+        let request = if let Some(dev_server_project_id) = project.read(cx).dev_server_project_id()
+        {
+            self.client.request(proto::ShareProject {
+                room_id: self.id(),
+                worktrees: vec![],
+                dev_server_project_id: Some(dev_server_project_id.0),
+            })
+        } else {
+            if let Some(project_id) = project.read(cx).remote_id() {
+                return Task::ready(Ok(project_id));
+            }
+
+            self.client.request(proto::ShareProject {
+                room_id: self.id(),
+                worktrees: project.read(cx).worktree_metadata_protos(cx),
+                dev_server_project_id: None,
+            })
+        };
 
-        let request = self.client.request(proto::ShareProject {
-            room_id: self.id(),
-            worktrees: project.read(cx).worktree_metadata_protos(cx),
-        });
         cx.spawn(|this, mut cx| async move {
             let response = request.await?;
 

crates/channel/src/channel_store.rs

@@ -40,7 +40,6 @@ pub struct HostedProject {
     name: SharedString,
     _visibility: proto::ChannelVisibility,
 }
-
 impl From<proto::HostedProject> for HostedProject {
     fn from(project: proto::HostedProject) -> Self {
         Self {
@@ -51,7 +50,6 @@ impl From<proto::HostedProject> for HostedProject {
         }
     }
 }
-
 pub struct ChannelStore {
     pub channel_index: ChannelIndex,
     channel_invitations: Vec<Arc<Channel>>,
@@ -817,7 +815,6 @@ impl ChannelStore {
             Ok(())
         })
     }
-
     pub fn get_channel_member_details(
         &self,
         channel_id: ChannelId,