fix indents when multicursor

eval: Do not create run files for skipped examples (#28800 )
Release Notes: - N/A
2025-04-16 05:09:34 +05:30 · 2025-04-15 18:00:04 +00:00 · 2025-04-15 23:27:32 +05:30 · 2025-04-15 13:48:03 -04:00 · 2025-04-15 23:17:04 +05:30 · 2025-04-15 19:45:47 +02:00
568 changed files with 27779 additions and 16910 deletions
--- a/.github/ISSUE_TEMPLATE/99_other.yml
+++ b/.github/ISSUE_TEMPLATE/99_other.yml
@@ -0,0 +1,19 @@
+name: Other [Staff Only]
+description: Zed Staff Only
+body:
+  - type: textarea
+    attributes:
+      label: Summary
+      value: |
+        <!-- Please insert a one line summary of the issue below -->
+        SUMMARY_SENTENCE_HERE
+
+        ### Description
+
+        IF YOU DO NOT WORK FOR ZED INDUSTRIES DO NOT CREATE ISSUES WITH THIS TEMPLATE.
+        THEY WILL BE AUTO-CLOSED AND MAY RESULT IN YOU BEING BANNED FROM THE ZED ISSUE TRACKER.
+
+        FEATURE REQUESTS / SUPPORT REQUESTS SHOULD BE OPENED AS DISCUSSIONS:
+          https://github.com/zed-industries/zed/discussions/new/choose
+    validations:
+      required: true
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -225,7 +225,7 @@ jobs:

      - name: Check for new vulnerable dependencies
        if: github.event_name == 'pull_request'
-        uses: actions/dependency-review-action@3b139cfc5fae8b618d3eae3675e383bb1769c019 # v4
+        uses: actions/dependency-review-action@67d4f4bd7a9b17a0db54d2a7519187c65e339de8 # v4
        with:
          license-check: false

@@ -465,6 +465,7 @@ jobs:
      - job_spec
      - style
      - migration_checks
+      # run_tests: If adding required tests, add them here and to script below.
      - workspace_hack
      - linux_tests
      - build_remote_server
@@ -482,11 +483,14 @@ jobs:

          # Only check test jobs if they were supposed to run
          if [[ "${{ needs.job_spec.outputs.run_tests }}" == "true" ]]; then
+            [[ "${{ needs.workspace_hack.result }}"       != 'success' ]] && { RET_CODE=1; echo "Workspace Hack failed"; }
            [[ "${{ needs.macos_tests.result }}"          != 'success' ]] && { RET_CODE=1; echo "macOS tests failed"; }
            [[ "${{ needs.linux_tests.result }}"          != 'success' ]] && { RET_CODE=1; echo "Linux tests failed"; }
            [[ "${{ needs.windows_tests.result }}"        != 'success' ]] && { RET_CODE=1; echo "Windows tests failed"; }
            [[ "${{ needs.windows_clippy.result }}"       != 'success' ]] && { RET_CODE=1; echo "Windows clippy failed"; }
            [[ "${{ needs.build_remote_server.result }}"  != 'success' ]] && { RET_CODE=1; echo "Remote server build failed"; }
+            # This check is intentionally disabled. See: https://github.com/zed-industries/zed/pull/28431
+            # [[ "${{ needs.migration_checks.result }}"     != 'success' ]] && { RET_CODE=1; echo "Migration Checks failed"; }
          fi
          if [[ "$RET_CODE" -eq 0 ]]; then
            echo "All tests passed successfully!"
@@ -590,7 +594,7 @@ jobs:
    timeout-minutes: 60
    name: Linux x86_x64 release bundle
    runs-on:
-      - buildjet-16vcpu-ubuntu-2004
+      - buildjet-16vcpu-ubuntu-2004 # ubuntu 20.04 for minimal glibc
    if: |
      startsWith(github.ref, 'refs/tags/v')
      || contains(github.event.pull_request.labels.*.name, 'run-bundling')
@@ -618,26 +622,23 @@ jobs:
      - name: Create Linux .tar.gz bundle
        run: script/bundle-linux

-      - name: Upload Linux bundle to workflow run if main branch or specific label
+      - name: Upload Artifact to Workflow - zed (run-bundling)
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
-        if: |
-          github.ref == 'refs/heads/main'
-          || contains(github.event.pull_request.labels.*.name, 'run-bundling')
+        if: contains(github.event.pull_request.labels.*.name, 'run-bundling')
        with:
          name: zed-${{ github.event.pull_request.head.sha || github.sha }}-x86_64-unknown-linux-gnu.tar.gz
          path: target/release/zed-*.tar.gz

-      - name: Upload Linux remote server to workflow run if main branch or specific label
+      - name: Upload Artifact to Workflow - zed-remote-server (run-bundling)
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
-        if: |
-          github.ref == 'refs/heads/main'
-          || contains(github.event.pull_request.labels.*.name, 'run-bundling')
+        if: contains(github.event.pull_request.labels.*.name, 'run-bundling')
        with:
          name: zed-remote-server-${{ github.event.pull_request.head.sha || github.sha }}-x86_64-unknown-linux-gnu.gz
          path: target/zed-remote-server-linux-x86_64.gz

-      - name: Upload app bundle to release
+      - name: Upload Artifacts to release
        uses: softprops/action-gh-release@de2c0eb89ae2a093876385947365aca7b0e5f844 # v1
+        if: ${{ !(contains(github.event.pull_request.labels.*.name, 'run-bundling')) }}
        with:
          draft: true
          prerelease: ${{ env.RELEASE_CHANNEL == 'preview' }}
@@ -676,29 +677,26 @@ jobs:
          # This exports RELEASE_CHANNEL into env (GITHUB_ENV)
          script/determine-release-channel

-      - name: Create and upload Linux .tar.gz bundle
+      - name: Create and upload Linux .tar.gz bundles
        run: script/bundle-linux

-      - name: Upload Linux bundle to workflow run if main branch or specific label
+      - name: Upload Artifact to Workflow - zed (run-bundling)
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
-        if: |
-          github.ref == 'refs/heads/main'
-          || contains(github.event.pull_request.labels.*.name, 'run-bundling')
+        if: contains(github.event.pull_request.labels.*.name, 'run-bundling')
        with:
          name: zed-${{ github.event.pull_request.head.sha || github.sha }}-aarch64-unknown-linux-gnu.tar.gz
          path: target/release/zed-*.tar.gz

-      - name: Upload Linux remote server to workflow run if main branch or specific label
+      - name: Upload Artifact to Workflow - zed-remote-server (run-bundling)
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
-        if: |
-          github.ref == 'refs/heads/main'
-          || contains(github.event.pull_request.labels.*.name, 'run-bundling')
+        if: contains(github.event.pull_request.labels.*.name, 'run-bundling')
        with:
          name: zed-remote-server-${{ github.event.pull_request.head.sha || github.sha }}-aarch64-unknown-linux-gnu.gz
          path: target/zed-remote-server-linux-aarch64.gz

-      - name: Upload app bundle to release
+      - name: Upload Artifacts to release
        uses: softprops/action-gh-release@de2c0eb89ae2a093876385947365aca7b0e5f844 # v1
+        if: ${{ !(contains(github.event.pull_request.labels.*.name, 'run-bundling')) }}
        with:
          draft: true
          prerelease: ${{ env.RELEASE_CHANNEL == 'preview' }}
@@ -739,7 +737,7 @@ jobs:
          echo "/nix/var/nix/profiles/default/bin" >> $GITHUB_PATH
          echo "/Users/administrator/.nix-profile/bin" >> $GITHUB_PATH

-      - uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
+      - uses: cachix/install-nix-action@d1ca217b388ee87b2507a9a93bf01368bde7cec2 # v31
        if: ${{ matrix.system.install_nix }}
        with:
          github_access_token: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/deploy_collab.yml
+++ b/.github/workflows/deploy_collab.yml
@@ -117,12 +117,10 @@ jobs:
            export ZED_KUBE_NAMESPACE=production
            export ZED_COLLAB_LOAD_BALANCER_SIZE_UNIT=10
            export ZED_API_LOAD_BALANCER_SIZE_UNIT=2
-            export ZED_LLM_LOAD_BALANCER_SIZE_UNIT=2
          elif [[ $GITHUB_REF_NAME = "collab-staging" ]]; then
            export ZED_KUBE_NAMESPACE=staging
            export ZED_COLLAB_LOAD_BALANCER_SIZE_UNIT=1
            export ZED_API_LOAD_BALANCER_SIZE_UNIT=1
-            export ZED_LLM_LOAD_BALANCER_SIZE_UNIT=1
          else
            echo "cowardly refusing to deploy from an unknown branch"
            exit 1
@@ -147,9 +145,3 @@ jobs:
          envsubst < crates/collab/k8s/collab.template.yml | kubectl apply -f -
          kubectl -n "$ZED_KUBE_NAMESPACE" rollout status deployment/$ZED_SERVICE_NAME --watch
          echo "deployed ${ZED_SERVICE_NAME} to ${ZED_KUBE_NAMESPACE}"
-
-          export ZED_SERVICE_NAME=llm
-          export ZED_LOAD_BALANCER_SIZE_UNIT=$ZED_LLM_LOAD_BALANCER_SIZE_UNIT
-          envsubst < crates/collab/k8s/collab.template.yml | kubectl apply -f -
-          kubectl -n "$ZED_KUBE_NAMESPACE" rollout status deployment/$ZED_SERVICE_NAME --watch
-          echo "deployed ${ZED_SERVICE_NAME} to ${ZED_KUBE_NAMESPACE}"
--- a/.github/workflows/release_nightly.yml
+++ b/.github/workflows/release_nightly.yml
@@ -206,7 +206,7 @@ jobs:
          echo "/nix/var/nix/profiles/default/bin" >> $GITHUB_PATH
          echo "/Users/administrator/.nix-profile/bin" >> $GITHUB_PATH

-      - uses: cachix/install-nix-action@02a151ada4993995686f9ed4f1be7cfbb229e56f # v31
+      - uses: cachix/install-nix-action@d1ca217b388ee87b2507a9a93bf01368bde7cec2 # v31
        if: ${{ matrix.system.install_nix }}
        with:
          github_access_token: ${{ secrets.GITHUB_TOKEN }}
--- a/.zed/debug.json
+++ b/.zed/debug.json
@@ -1,13 +1,13 @@
 [
  {
-    "label": "Debug Zed with LLDB",
-    "adapter": "LLDB",
+    "label": "Debug Zed (CodeLLDB)",
+    "adapter": "CodeLLDB",
    "program": "$ZED_WORKTREE_ROOT/target/debug/zed",
    "request": "launch",
    "cwd": "$ZED_WORKTREE_ROOT"
  },
  {
-    "label": "Debug Zed with GDB",
+    "label": "Debug Zed (GDB)",
    "adapter": "GDB",
    "program": "$ZED_WORKTREE_ROOT/target/debug/zed",
    "request": "launch",
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -64,6 +64,7 @@ dependencies = [
 "clock",
 "collections",
 "command_palette_hooks",
+ "component",
 "context_server",
 "convert_case 0.8.0",
 "db",
@@ -84,6 +85,7 @@ dependencies = [
 "language",
 "language_model",
 "language_model_selector",
+ "linkme",
 "log",
 "lsp",
 "markdown",
@@ -113,6 +115,7 @@ dependencies = [
 "terminal_view",
 "text",
 "theme",
+ "thiserror 2.0.12",
 "time",
 "time_format",
 "ui",
@@ -124,43 +127,6 @@ dependencies = [
 "zed_actions",
 ]

-[[package]]
-name = "agent_eval"
-version = "0.1.0"
-dependencies = [
- "agent",
- "anyhow",
- "assistant_tool",
- "assistant_tools",
- "clap",
- "client",
- "collections",
- "context_server",
- "dap",
- "env_logger 0.11.8",
- "fs",
- "futures 0.3.31",
- "gpui",
- "gpui_tokio",
- "language",
- "language_model",
- "language_models",
- "node_runtime",
- "project",
- "prompt_store",
- "release_channel",
- "reqwest_client",
- "serde",
- "serde_json",
- "serde_json_lenient",
- "settings",
- "smol",
- "tempfile",
- "util",
- "walkdir",
- "workspace-hack",
-]
-
 [[package]]
 name = "ahash"
 version = "0.7.8"
@@ -360,7 +326,6 @@ dependencies = [
 "serde_json",
 "strum",
 "thiserror 2.0.12",
- "util",
 "workspace-hack",
 ]

@@ -1216,6 +1181,18 @@ dependencies = [
 "workspace-hack",
 ]

+[[package]]
+name = "auto_update_helper"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "log",
+ "simplelog",
+ "windows 0.61.1",
+ "winresource",
+ "workspace-hack",
+]
+
 [[package]]
 name = "auto_update_ui"
 version = "0.1.0"
@@ -1624,7 +1601,7 @@ dependencies = [
 "hyper-util",
 "pin-project-lite",
 "rustls 0.21.12",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-native-certs 0.8.1",
 "rustls-pki-types",
 "tokio",
@@ -2965,7 +2942,6 @@ dependencies = [
 name = "collab"
 version = "0.44.0"
 dependencies = [
- "anthropic",
 "anyhow",
 "assistant",
 "assistant_context_editor",
@@ -3209,14 +3185,18 @@ dependencies = [
 name = "component_preview"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
 "client",
 "collections",
 "component",
+ "db",
 "gpui",
 "languages",
 "notifications",
 "project",
+ "serde",
 "ui",
+ "ui_input",
 "workspace",
 "workspace-hack",
 ]
@@ -3329,6 +3309,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"

+[[package]]
+name = "convert_case"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec182b0ca2f35d8fc196cf3404988fd8b8c739a4d270ff118a398feb0cbec1ca"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "convert_case"
 version = "0.8.0"
@@ -4012,7 +4001,6 @@ dependencies = [
 "node_runtime",
 "parking_lot",
 "paths",
- "regex",
 "schemars",
 "serde",
 "serde_json",
@@ -4044,7 +4032,6 @@ dependencies = [
 "gpui",
 "language",
 "paths",
- "regex",
 "serde",
 "serde_json",
 "task",
@@ -4188,6 +4175,7 @@ dependencies = [
 "collections",
 "command_palette_hooks",
 "dap",
+ "db",
 "editor",
 "env_logger 0.11.8",
 "feature_flags",
@@ -4206,6 +4194,7 @@ dependencies = [
 "settings",
 "sysinfo",
 "task",
+ "tasks_ui",
 "terminal_view",
 "theme",
 "ui",
@@ -4326,19 +4315,24 @@ dependencies = [
 "anyhow",
 "client",
 "collections",
+ "component",
 "ctor",
 "editor",
 "env_logger 0.11.8",
 "gpui",
+ "indoc",
 "language",
+ "linkme",
 "log",
 "lsp",
+ "markdown",
 "pretty_assertions",
 "project",
 "rand 0.8.5",
 "serde",
 "serde_json",
 "settings",
+ "text",
 "theme",
 "ui",
 "unindent",
@@ -4461,6 +4455,32 @@ dependencies = [
 "workspace-hack",
 ]

+[[package]]
+name = "documented"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc6db32f0995bc4553d2de888999075acd0dbeef75ba923503f6a724263dc6f3"
+dependencies = [
+ "documented-macros",
+ "phf",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "documented-macros"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a394bb35929b58f9a5fd418f7c6b17a4b616efcc1e53e6995ca123948f87e5fa"
+dependencies = [
+ "convert_case 0.6.0",
+ "itertools 0.13.0",
+ "optfield",
+ "proc-macro2",
+ "quote",
+ "strum",
+ "syn 2.0.100",
+]
+
 [[package]]
 name = "dotenvy"
 version = "0.15.7"
@@ -4550,6 +4570,7 @@ dependencies = [
 "client",
 "clock",
 "collections",
+ "command_palette_hooks",
 "convert_case 0.8.0",
 "ctor",
 "db",
@@ -4850,6 +4871,48 @@ dependencies = [
 "num-traits",
 ]

+[[package]]
+name = "eval"
+version = "0.1.0"
+dependencies = [
+ "agent",
+ "anyhow",
+ "assistant_tool",
+ "assistant_tools",
+ "async-watch",
+ "chrono",
+ "clap",
+ "client",
+ "collections",
+ "context_server",
+ "dap",
+ "env_logger 0.11.8",
+ "extension",
+ "fs",
+ "futures 0.3.31",
+ "gpui",
+ "gpui_tokio",
+ "handlebars 4.5.0",
+ "language",
+ "language_extension",
+ "language_model",
+ "language_models",
+ "languages",
+ "node_runtime",
+ "paths",
+ "project",
+ "prompt_store",
+ "release_channel",
+ "reqwest_client",
+ "serde",
+ "settings",
+ "shellexpand 2.1.2",
+ "toml 0.8.20",
+ "unindent",
+ "util",
+ "workspace-hack",
+]
+
 [[package]]
 name = "evals"
 version = "0.1.0"
@@ -4941,10 +5004,10 @@ dependencies = [
 "async-tar",
 "async-trait",
 "collections",
- "convert_case 0.8.0",
 "fs",
 "futures 0.3.31",
 "gpui",
+ "heck 0.5.0",
 "http_client",
 "language",
 "log",
@@ -6585,7 +6648,7 @@ dependencies = [
 name = "http_client_tls"
 version = "0.1.0"
 dependencies = [
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-platform-verifier",
 "workspace-hack",
 ]
@@ -6684,7 +6747,7 @@ dependencies = [
 "http 1.3.1",
 "hyper 1.6.0",
 "hyper-util",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-native-certs 0.8.1",
 "rustls-pki-types",
 "tokio",
@@ -7029,9 +7092,9 @@ dependencies = [

 [[package]]
 name = "indexmap"
-version = "2.8.0"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3954d50fe15b02142bf25d3b8bdadb634ec3948f103d04ffe3031bc8fe9d7058"
+checksum = "cea70ddb795996207ad57735b50c5982d8844f38ba9ee5f1aedcfb708a2aa11e"
 dependencies = [
 "equivalent",
 "hashbrown 0.15.2",
@@ -7137,9 +7200,12 @@ name = "install_cli"
 version = "0.1.0"
 dependencies = [
 "anyhow",
+ "client",
 "gpui",
+ "release_channel",
 "smol",
 "util",
+ "workspace",
 "workspace-hack",
 ]

@@ -7616,6 +7682,7 @@ dependencies = [
 name = "language_model_selector"
 version = "0.1.0"
 dependencies = [
+ "collections",
 "feature_flags",
 "gpui",
 "language_model",
@@ -7666,6 +7733,7 @@ dependencies = [
 "smol",
 "strum",
 "theme",
+ "thiserror 2.0.12",
 "tiktoken-rs",
 "tokio",
 "ui",
@@ -7875,7 +7943,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
 dependencies = [
 "cfg-if",
- "windows-targets 0.48.5",
+ "windows-targets 0.52.6",
 ]

 [[package]]
@@ -7886,9 +7954,9 @@ checksum = "8355be11b20d696c8f18f6cc018c4e372165b1fa8126cef092399c9951984ffa"

 [[package]]
 name = "libmimalloc-sys"
-version = "0.1.41"
+version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b20daca3a4ac14dbdc753c5e90fc7b490a48a9131daed3c9a9ced7b2defd37b"
+checksum = "ec9d6fac27761dabcd4ee73571cdb06b7022dc99089acbe5435691edffaac0f4"
 dependencies = [
 "cc",
 "libc",
@@ -8559,9 +8627,9 @@ dependencies = [

 [[package]]
 name = "mimalloc"
-version = "0.1.45"
+version = "0.1.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03cb1f88093fe50061ca1195d336ffec131347c7b833db31f9ab62a2d1b7925f"
+checksum = "995942f432bbb4822a7e9c3faa87a695185b0d09273ba85f097b54f4e458f2af"
 dependencies = [
 "libmimalloc-sys",
 ]
@@ -9542,6 +9610,17 @@ dependencies = [
 "vcpkg",
 ]

+[[package]]
+name = "optfield"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa59f025cde9c698fcb4fcb3533db4621795374065bee908215263488f2d2a1d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.100",
+]
+
 [[package]]
 name = "option-ext"
 version = "0.2.0"
@@ -10888,9 +10967,9 @@ dependencies = [

 [[package]]
 name = "prometheus"
-version = "0.13.4"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d33c28a30771f7f96db69893f78b857f7450d7e0237e9c8fc6427a81bae7ed1"
+checksum = "3ca5326d8d0b950a9acd87e6a3f94745394f62e4dae1b1ee22b2bc0c394af43a"
 dependencies = [
 "cfg-if",
 "fnv",
@@ -10898,7 +10977,7 @@ dependencies = [
 "memchr",
 "parking_lot",
 "protobuf",
- "thiserror 1.0.69",
+ "thiserror 2.0.12",
 ]

 [[package]]
@@ -11073,9 +11152,23 @@ dependencies = [

 [[package]]
 name = "protobuf"
-version = "2.28.0"
+version = "3.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "106dd99e98437432fed6519dedecfade6a06a73bb7b2a1e019fdd2bee5778d94"
+checksum = "d65a1d4ddae7d8b5de68153b48f6aa3bba8cb002b243dbdbc55a5afbc98f99f4"
+dependencies = [
+ "once_cell",
+ "protobuf-support",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "protobuf-support"
+version = "3.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e36c2f31e0a47f9280fb347ef5e461ffcd2c52dd520d8e216b52f93b0b0d7d6"
+dependencies = [
+ "thiserror 1.0.69",
+]

 [[package]]
 name = "psm"
@@ -11201,7 +11294,7 @@ dependencies = [
 "quinn-proto",
 "quinn-udp",
 "rustc-hash 2.1.1",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "socket2",
 "thiserror 2.0.12",
 "tokio",
@@ -11220,7 +11313,7 @@ dependencies = [
 "rand 0.9.0",
 "ring",
 "rustc-hash 2.1.1",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-pki-types",
 "slab",
 "thiserror 2.0.12",
@@ -11828,7 +11921,7 @@ dependencies = [
 "percent-encoding",
 "pin-project-lite",
 "quinn",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-native-certs 0.8.1",
 "rustls-pemfile 2.2.0",
 "rustls-pki-types",
@@ -12219,9 +12312,9 @@ dependencies = [

 [[package]]
 name = "rustls"
-version = "0.23.25"
+version = "0.23.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "822ee9188ac4ec04a2f0531e55d035fb2de73f18b41a63c70c2712503b6fb13c"
+checksum = "df51b5869f3a441595eac5e8ff14d486ff285f7b8c0df8770e49c3b56351f0f0"
 dependencies = [
 "aws-lc-rs",
 "log",
@@ -12295,7 +12388,7 @@ dependencies = [
 "jni",
 "log",
 "once_cell",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-native-certs 0.8.1",
 "rustls-platform-verifier-android",
 "rustls-webpki 0.103.1",
@@ -13160,9 +13253,9 @@ dependencies = [

 [[package]]
 name = "smallvec"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fcf8323ef1faaee30a44a340193b1ac6814fd9b7b4e88e9d4519a3e4abe1cfd"
+checksum = "8917285742e9f3e1683f0a9c4e6b57960b7314d0b08d30d1ecd426713ee2eee9"
 dependencies = [
 "serde",
 ]
@@ -13393,7 +13486,7 @@ dependencies = [
 "once_cell",
 "percent-encoding",
 "rust_decimal",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-pemfile 2.2.0",
 "serde",
 "serde_json",
@@ -14127,12 +14220,12 @@ name = "tasks_ui"
 version = "0.1.0"
 dependencies = [
 "anyhow",
- "debugger_ui",
+ "collections",
 "editor",
- "feature_flags",
 "file_icons",
 "fuzzy",
 "gpui",
+ "itertools 0.14.0",
 "language",
 "menu",
 "picker",
@@ -14686,7 +14779,7 @@ version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e727b36a1a0e8b74c376ac2211e40c2c8af09fb4013c60d910495810f008e9b"
 dependencies = [
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "tokio",
 ]

@@ -14746,7 +14839,7 @@ checksum = "7a9daff607c6d2bf6c16fd681ccb7eecc83e4e2cdc1ca067ffaadfca5de7f084"
 dependencies = [
 "futures-util",
 "log",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-pki-types",
 "tokio",
 "tokio-rustls 0.26.2",
@@ -15305,7 +15398,7 @@ dependencies = [
 "httparse",
 "log",
 "rand 0.9.0",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-pki-types",
 "sha1",
 "thiserror 2.0.12",
@@ -15347,6 +15440,7 @@ version = "0.1.0"
 dependencies = [
 "chrono",
 "component",
+ "documented",
 "gpui",
 "icons",
 "itertools 0.14.0",
@@ -17535,6 +17629,7 @@ dependencies = [
 "ui",
 "util",
 "uuid",
+ "windows 0.61.1",
 "workspace-hack",
 "zed_actions",
 ]
@@ -17612,6 +17707,7 @@ dependencies = [
 "indexmap",
 "inout",
 "itertools 0.12.1",
+ "itertools 0.13.0",
 "lazy_static",
 "libc",
 "libsqlite3-sys",
@@ -17651,7 +17747,7 @@ dependencies = [
 "rust_decimal",
 "rustix 0.38.44",
 "rustix 1.0.5",
- "rustls 0.23.25",
+ "rustls 0.23.26",
 "rustls-webpki 0.103.1",
 "scopeguard",
 "sea-orm",
@@ -17696,6 +17792,8 @@ dependencies = [
 "wasmtime-cranelift",
 "wasmtime-environ",
 "winapi",
+ "windows-core 0.61.0",
+ "windows-numerics",
 "windows-sys 0.48.0",
 "windows-sys 0.52.0",
 "windows-sys 0.59.0",
@@ -18040,7 +18138,7 @@ dependencies = [

 [[package]]
 name = "zed"
-version = "0.182.0"
+version = "0.183.0"
 dependencies = [
 "activity_indicator",
 "agent",
@@ -18136,7 +18234,6 @@ dependencies = [
 "settings",
 "settings_ui",
 "shellexpand 2.1.2",
- "simplelog",
 "smol",
 "snippet_provider",
 "snippets_ui",
@@ -18171,6 +18268,7 @@ dependencies = [
 "workspace-hack",
 "zed_actions",
 "zeta",
+ "zlog",
 "zlog_settings",
 ]

@@ -18220,7 +18318,7 @@ dependencies = [

 [[package]]
 name = "zed_html"
-version = "0.2.0"
+version = "0.2.1"
 dependencies = [
 "zed_extension_api 0.1.0",
 ]
@@ -18483,7 +18581,10 @@ dependencies = [
 name = "zlog"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
+ "chrono",
 "log",
+ "tempfile",
 "workspace-hack",
 ]

--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,6 @@ members = [
    "crates/assets",
    "crates/assistant",
    "crates/assistant_context_editor",
-    "crates/agent_eval",
    "crates/assistant_settings",
    "crates/assistant_slash_command",
    "crates/assistant_slash_commands",
@@ -16,6 +15,7 @@ members = [
    "crates/assistant_tools",
    "crates/audio",
    "crates/auto_update",
+    "crates/auto_update_helper",
    "crates/auto_update_ui",
    "crates/aws_http_client",
    "crates/bedrock",
@@ -46,6 +46,7 @@ members = [
    "crates/diagnostics",
    "crates/docs_preprocessor",
    "crates/editor",
+    "crates/eval",
    "crates/evals",
    "crates/extension",
    "crates/extension_api",
@@ -215,7 +216,6 @@ askpass = { path = "crates/askpass" }
 assets = { path = "crates/assets" }
 assistant = { path = "crates/assistant" }
 assistant_context_editor = { path = "crates/assistant_context_editor" }
-assistant_eval = { path = "crates/agent_eval" }
 assistant_settings = { path = "crates/assistant_settings" }
 assistant_slash_command = { path = "crates/assistant_slash_command" }
 assistant_slash_commands = { path = "crates/assistant_slash_commands" }
@@ -223,6 +223,7 @@ assistant_tool = { path = "crates/assistant_tool" }
 assistant_tools = { path = "crates/assistant_tools" }
 audio = { path = "crates/audio" }
 auto_update = { path = "crates/auto_update" }
+auto_update_helper = { path = "crates/auto_update_helper" }
 auto_update_ui = { path = "crates/auto_update_ui" }
 aws_http_client = { path = "crates/aws_http_client" }
 bedrock = { path = "crates/bedrock" }
@@ -400,8 +401,12 @@ async-tungstenite = "0.29.1"
 async-watch = "0.3.1"
 async_zip = { version = "0.0.17", features = ["deflate", "deflate64"] }
 aws-config = { version = "1.6.1", features = ["behavior-version-latest"] }
-aws-credential-types = { version = "1.2.2", features = ["hardcoded-credentials"] }
-aws-sdk-bedrockruntime = { version = "1.80.0", features = ["behavior-version-latest"] }
+aws-credential-types = { version = "1.2.2", features = [
+    "hardcoded-credentials",
+] }
+aws-sdk-bedrockruntime = { version = "1.80.0", features = [
+    "behavior-version-latest",
+] }
 aws-smithy-runtime-api = { version = "1.7.4", features = ["http-1x", "client"] }
 aws-smithy-types = { version = "1.3.0", features = ["http-body-1-x"] }
 base64 = "0.22"
@@ -440,6 +445,7 @@ futures-lite = "1.13"
 git2 = { version = "0.20.1", default-features = false }
 globset = "0.4"
 handlebars = "4.3"
+heck = "0.5"
 heed = { version = "0.21.0", features = ["read-txn-no-tls"] }
 hex = "0.4.3"
 html5ever = "0.27.0"
@@ -507,7 +513,7 @@ runtimelib = {  git = "https://github.com/ConradIrwin/runtimed", rev = "7130c804
 rustc-demangle = "0.1.23"
 rust-embed = { version = "8.4", features = ["include-exclude"] }
 rustc-hash = "2.1.0"
-rustls = { version = "0.23.22" }
+rustls = { version = "0.23.26" }
 rustls-platform-verifier = "0.5.0"
 scap = { git = "https://github.com/zed-industries/scap", rev = "08f0a01417505cc0990b9931a37e5120db92e0d0", default-features = false }
 schemars = { version = "0.8", features = ["impl_json_schema", "indexmap2"] }
@@ -616,12 +622,10 @@ features = [
 [workspace.dependencies.windows]
 version = "0.61"
 features = [
-    "Foundation_Collections",
    "Foundation_Numerics",
    "Storage_Search",
    "Storage_Streams",
    "System_Threading",
-    "UI_StartScreen",
    "UI_ViewManagement",
    "Wdk_System_SystemServices",
    "Win32_Globalization",
@@ -648,6 +652,7 @@ features = [
    "Win32_System_SystemInformation",
    "Win32_System_SystemServices",
    "Win32_System_Threading",
+    "Win32_System_Variant",
    "Win32_System_WinRT",
    "Win32_UI_Controls",
    "Win32_UI_HiDpi",
@@ -655,6 +660,7 @@ features = [
    "Win32_UI_Input_KeyboardAndMouse",
    "Win32_UI_Shell",
    "Win32_UI_Shell_Common",
+    "Win32_UI_Shell_PropertiesSystem",
    "Win32_UI_WindowsAndMessaging",
 ]

@@ -778,4 +784,12 @@ let_underscore_future = "allow"
 too_many_arguments = "allow"

 [workspace.metadata.cargo-machete]
-ignored = ["bindgen", "cbindgen", "prost_build", "serde", "component", "linkme", "workspace-hack"]
+ignored = [
+    "bindgen",
+    "cbindgen",
+    "prost_build",
+    "serde",
+    "component",
+    "linkme",
+    "workspace-hack",
+]
--- a/assets/icons/ai_anthropic_hosted.svg
+++ b/assets/icons/ai_anthropic_hosted.svg
@@ -1,12 +0,0 @@
-<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-<rect width="16" height="16" rx="2" fill="black" fill-opacity="0.2"/>
-<g clip-path="url(#clip0_1916_18)">
-<path d="M10.652 3.79999H8.816L12.164 12.2H14L10.652 3.79999Z" fill="#1F1F1E"/>
-<path d="M5.348 3.79999L2 12.2H3.872L4.55672 10.436H8.05927L8.744 12.2H10.616L7.268 3.79999H5.348ZM5.16224 8.87599L6.308 5.92399L7.45374 8.87599H5.16224Z" fill="#1F1F1E"/>
-</g>
-<defs>
-<clipPath id="clip0_1916_18">
-<rect width="12" height="8.4" fill="white" transform="translate(2 3.79999)"/>
-</clipPath>
-</defs>
-</svg>
--- a/assets/icons/binary.svg
+++ b/assets/icons/binary.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-binary-icon lucide-binary"><rect x="14" y="14" width="4" height="6" rx="2"/><rect x="6" y="4" width="4" height="6" rx="2"/><path d="M6 20h4"/><path d="M14 10h4"/><path d="M6 14h2v6"/><path d="M14 4h2v6"/></svg>
--- a/assets/icons/file_icons/vyper.svg
+++ b/assets/icons/file_icons/vyper.svg
@@ -0,0 +1 @@
+<svg width="16" height="16" fill="none" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><g style="fill:#000;fill-opacity:1" fill="#180c25"><path d="m-116.1-101.4-28.9-28.9a6.7 6.7 0 0 1-1.8-4.7v-41.2c0-2.4-2.4-4.8-4.8-4.8h-9.6a5.2 5.2 0 0 0-4.8 4.8v48c0 2.5 1 5 2.7 6.8l33.6 33.6a9.6 9.6 0 0 0 6.8 2.8h4.8c2.7 0 4.8-2.2 4.8-4.8v-4.8c0-2.5-1-5-2.8-6.8zM-79.6-176.2c0-2.4-2.4-4.8-4.8-4.8h-9.7a5.2 5.2 0 0 0-4.7 4.8v41.2c0 1.8-.8 3.5-2 4.7l-9.6 9.7a9.5 9.5 0 0 0-2.8 6.8v4.8c0 2.6 2.1 4.7 4.8 4.7h4.8c2.4 0 4.9-.9 6.7-2.8l14.4-14.3a9.6 9.6 0 0 0 2.8-6.8v-48z" style="fill:#000;fill-opacity:1;stroke-width:.255894" transform="translate(21.6 22.7) scale(.11067)"/></g></svg>
--- a/assets/icons/flame.svg
+++ b/assets/icons/flame.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-flame-icon lucide-flame"><path d="M8.5 14.5A2.5 2.5 0 0 0 11 12c0-1.38-.5-2-1-3-1.072-2.143-.224-4.054 2-6 .5 2.5 2 4.9 4 6.5 2 1.6 3 3.5 3 5.5a7 7 0 1 1-14 0c0-1.153.433-2.294 1-3a2.5 2.5 0 0 0 2.5 2.5z"/></svg>
--- a/assets/icons/function.svg
+++ b/assets/icons/function.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-square-function-icon lucide-square-function"><rect width="18" height="18" x="3" y="3" rx="2" ry="2"/><path d="M9 17c2 0 2.8-1 2.8-2.8V10c0-2 1-3.3 3.2-3"/><path d="M9 11.2h5.7"/></svg>
--- a/assets/icons/layout.svg
+++ b/assets/icons/layout.svg
@@ -0,0 +1,5 @@
+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M20 14H4C3.44772 14 3 14.4477 3 15V20C3 20.5523 3.44772 21 4 21H20C20.5523 21 21 20.5523 21 20V15C21 14.4477 20.5523 14 20 14Z" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M11 3H4C3.44772 3 3 3.44772 3 4V9C3 9.55228 3.44772 10 4 10H11C11.5523 10 12 9.55228 12 9V4C12 3.44772 11.5523 3 11 3Z" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M20 3H17C16.4477 3 16 3.44772 16 4V9C16 9.55228 16.4477 10 17 10H20C20.5523 10 21 9.55228 21 9V4C21 3.44772 20.5523 3 20 3Z" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>
--- a/assets/icons/light_bulb.svg
+++ b/assets/icons/light_bulb.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 d="M10.1331 11.3776C10.2754 10.6665 10.1331 9.78593 11.1998 8.53327C11.82 7.80489 12.2664 6.96894 12.2664 6.04456C12.2664 4.91305 11.8169 3.82788 11.0168 3.02778C10.2167 2.22769 9.13152 1.7782 8.00001 1.7782C6.8685 1.7782 5.78334 2.22769 4.98324 3.02778C4.18314 3.82788 3.73364 4.91305 3.73364 6.04456C3.73364 6.75562 3.87586 7.6089 4.80024 8.53327C5.86683 9.80679 5.72462 10.6665 5.86683 11.3776M10.1331 11.3776V12.8821C10.1331 13.622 9.53341 14.2218 8.79353 14.2218H7.2065C6.46662 14.2218 5.86683 13.622 5.86683 12.8821V11.3776M10.1331 11.3776H5.86683" stroke="black" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>
--- a/assets/keymaps/default-linux.json
+++ b/assets/keymaps/default-linux.json
@@ -150,7 +150,9 @@
    "context": "AgentDiff",
    "bindings": {
      "ctrl-y": "agent::Keep",
-      "ctrl-k ctrl-r": "agent::Reject"
+      "ctrl-n": "agent::Reject",
+      "ctrl-shift-y": "agent::KeepAll",
+      "ctrl-shift-n": "agent::RejectAll"
    }
  },
  {
@@ -352,11 +354,11 @@
      "alt-shift-left": "editor::SelectSmallerSyntaxNode", // Shrink Selection
      "ctrl-shift-l": "editor::SelectAllMatches", // Select all occurrences of current selection
      "ctrl-f2": "editor::SelectAllMatches", // Select all occurrences of current word
-      "ctrl-d": ["editor::SelectNext", { "replace_newest": false }],
-      "ctrl-shift-down": ["editor::SelectNext", { "replace_newest": false }], // Add selection to Next Find Match
-      "ctrl-shift-up": ["editor::SelectPrevious", { "replace_newest": false }],
-      "ctrl-k ctrl-d": ["editor::SelectNext", { "replace_newest": true }],
-      "ctrl-k ctrl-shift-d": ["editor::SelectPrevious", { "replace_newest": true }],
+      "ctrl-d": ["editor::SelectNext", { "replace_newest": false }], // editor.action.addSelectionToNextFindMatch  / find_under_expand
+      "ctrl-shift-down": ["editor::SelectNext", { "replace_newest": false }], // editor.action.addSelectionToNextFindMatch
+      "ctrl-shift-up": ["editor::SelectPrevious", { "replace_newest": false }], // editor.action.addSelectionToPreviousFindMatch
+      "ctrl-k ctrl-d": ["editor::SelectNext", { "replace_newest": true }], // editor.action.moveSelectionToNextFindMatch  / find_under_expand_skip
+      "ctrl-k ctrl-shift-d": ["editor::SelectPrevious", { "replace_newest": true }], // editor.action.moveSelectionToPreviousFindMatch
      "ctrl-k ctrl-i": "editor::Hover",
      "ctrl-/": ["editor::ToggleComments", { "advance_downwards": false }],
      "ctrl-u": "editor::UndoSelection",
@@ -532,6 +534,7 @@
    "context": "Editor && showing_completions",
    "bindings": {
      "enter": "editor::ConfirmCompletion",
+      "shift-enter": "editor::ConfirmCompletionReplace",
      "tab": "editor::ComposeCompletion"
    }
  },
@@ -624,12 +627,13 @@
    "context": "AgentPanel",
    "bindings": {
      "ctrl-n": "agent::NewThread",
-      "ctrl-alt-n": "agent::NewPromptEditor",
+      "ctrl-alt-n": "agent::NewTextThread",
      "ctrl-shift-h": "agent::OpenHistory",
      "ctrl-alt-c": "agent::OpenConfiguration",
      "ctrl-i": "agent::ToggleProfileSelector",
      "ctrl-alt-/": "assistant::ToggleModelSelector",
      "ctrl-shift-a": "agent::ToggleContextPicker",
+      "shift-escape": "agent::ExpandMessageEditor",
      "ctrl-e": "agent::ChatMode",
      "ctrl-alt-e": "agent::RemoveAllContext"
    }
@@ -643,9 +647,8 @@
  },
  {
    "context": "AgentPanel && prompt_editor",
-    "use_key_equivalents": true,
    "bindings": {
-      "cmd-n": "agent::NewPromptEditor",
+      "cmd-n": "agent::NewTextThread",
      "cmd-alt-t": "agent::NewThread"
    }
  },
@@ -659,7 +662,6 @@
  },
  {
    "context": "EditMessageEditor > Editor",
-    "use_key_equivalents": true,
    "bindings": {
      "escape": "menu::Cancel",
      "enter": "menu::Confirm",
@@ -668,7 +670,6 @@
  },
  {
    "context": "AgentFeedbackMessageEditor > Editor",
-    "use_key_equivalents": true,
    "bindings": {
      "escape": "menu::Cancel",
      "enter": "menu::Confirm",
@@ -781,6 +782,7 @@
      "shift-tab": "git_panel::FocusEditor",
      "escape": "git_panel::ToggleFocus",
      "ctrl-enter": "git::Commit",
+      "ctrl-shift-enter": "git::Amend",
      "alt-enter": "menu::SecondaryConfirm",
      "delete": ["git::RestoreFile", { "skip_prompt": false }],
      "backspace": ["git::RestoreFile", { "skip_prompt": false }],
@@ -789,18 +791,25 @@
      "ctrl-delete": ["git::RestoreFile", { "skip_prompt": false }]
    }
  },
+  {
+    "context": "GitPanel && CommitEditor",
+    "use_key_equivalents": true,
+    "bindings": {
+      "escape": "git::Cancel"
+    }
+  },
  {
    "context": "GitCommit > Editor",
    "bindings": {
      "escape": "menu::Cancel",
      "enter": "editor::Newline",
      "ctrl-enter": "git::Commit",
+      "ctrl-shift-enter": "git::Amend",
      "alt-l": "git::GenerateCommitMessage"
    }
  },
  {
    "context": "GitPanel",
-    "use_key_equivalents": true,
    "bindings": {
      "ctrl-g ctrl-g": "git::Fetch",
      "ctrl-g up": "git::Push",
@@ -817,6 +826,7 @@
    "context": "GitDiff > Editor",
    "bindings": {
      "ctrl-enter": "git::Commit",
+      "ctrl-shift-enter": "git::Amend",
      "ctrl-space": "git::StageAll",
      "ctrl-shift-space": "git::UnstageAll"
    }
@@ -835,6 +845,7 @@
      "shift-tab": "git_panel::FocusChanges",
      "enter": "editor::Newline",
      "ctrl-enter": "git::Commit",
+      "ctrl-shift-enter": "git::Amend",
      "alt-up": "git_panel::FocusChanges",
      "alt-l": "git::GenerateCommitMessage"
    }
--- a/assets/keymaps/default-macos.json
+++ b/assets/keymaps/default-macos.json
@@ -242,7 +242,9 @@
    "use_key_equivalents": true,
    "bindings": {
      "cmd-y": "agent::Keep",
-      "cmd-alt-z": "agent::Reject"
+      "cmd-n": "agent::Reject",
+      "cmd-shift-y": "agent::KeepAll",
+      "cmd-shift-n": "agent::RejectAll"
    }
  },
  {
@@ -281,12 +283,13 @@
    "use_key_equivalents": true,
    "bindings": {
      "cmd-n": "agent::NewThread",
-      "cmd-alt-n": "agent::NewPromptEditor",
+      "cmd-alt-n": "agent::NewTextThread",
      "cmd-shift-h": "agent::OpenHistory",
      "cmd-alt-c": "agent::OpenConfiguration",
      "cmd-i": "agent::ToggleProfileSelector",
      "cmd-alt-/": "assistant::ToggleModelSelector",
      "cmd-shift-a": "agent::ToggleContextPicker",
+      "shift-escape": "agent::ExpandMessageEditor",
      "cmd-e": "agent::ChatMode",
      "cmd-alt-e": "agent::RemoveAllContext"
    }
@@ -302,7 +305,7 @@
    "context": "AgentPanel && prompt_editor",
    "use_key_equivalents": true,
    "bindings": {
-      "cmd-n": "agent::NewPromptEditor",
+      "cmd-n": "agent::NewTextThread",
      "cmd-alt-t": "agent::NewThread"
    }
  },
@@ -488,12 +491,15 @@
      "alt-shift-down": "editor::DuplicateLineDown",
      "ctrl-shift-right": "editor::SelectLargerSyntaxNode", // Expand Selection
      "ctrl-shift-left": "editor::SelectSmallerSyntaxNode", // Shrink Selection
-      "cmd-d": ["editor::SelectNext", { "replace_newest": false }], // Add selection to Next Find Match
+      "cmd-d": ["editor::SelectNext", { "replace_newest": false }], // editor.action.addSelectionToNextFindMatch / find_under_expand
      "cmd-shift-l": "editor::SelectAllMatches", // Select all occurrences of current selection
      "cmd-f2": "editor::SelectAllMatches", // Select all occurrences of current word
-      "ctrl-cmd-d": ["editor::SelectPrevious", { "replace_newest": false }],
-      "cmd-k cmd-d": ["editor::SelectNext", { "replace_newest": true }],
-      "cmd-k ctrl-cmd-d": ["editor::SelectPrevious", { "replace_newest": true }],
+      "cmd-k cmd-d": ["editor::SelectNext", { "replace_newest": true }], // editor.action.moveSelectionToNextFindMatch / find_under_expand_skip
+      // macOS binds `ctrl-cmd-d` to Show Dictionary which breaks these two binds
+      // To use `ctrl-cmd-d` or `ctrl-k ctrl-cmd-d` in Zed you must execute this command and then restart:
+      //   defaults write com.apple.symbolichotkeys AppleSymbolicHotKeys -dict-add 70 '<dict><key>enabled</key><false/></dict>'
+      "ctrl-cmd-d": ["editor::SelectPrevious", { "replace_newest": false }], // editor.action.addSelectionToPreviousFindMatch
+      "cmd-k ctrl-cmd-d": ["editor::SelectPrevious", { "replace_newest": true }], // editor.action.moveSelectionToPreviousFindMatch
      "cmd-k cmd-i": "editor::Hover",
      "cmd-/": ["editor::ToggleComments", { "advance_downwards": false }],
      "cmd-u": "editor::UndoSelection",
@@ -681,6 +687,7 @@
    "use_key_equivalents": true,
    "bindings": {
      "enter": "editor::ConfirmCompletion",
+      "shift-enter": "editor::ConfirmCompletionReplace",
      "tab": "editor::ComposeCompletion"
    }
  },
@@ -848,17 +855,26 @@
      "shift-tab": "git_panel::FocusEditor",
      "escape": "git_panel::ToggleFocus",
      "cmd-enter": "git::Commit",
+      "cmd-shift-enter": "git::Amend",
      "backspace": ["git::RestoreFile", { "skip_prompt": false }],
      "delete": ["git::RestoreFile", { "skip_prompt": false }],
      "cmd-backspace": ["git::RestoreFile", { "skip_prompt": true }],
      "cmd-delete": ["git::RestoreFile", { "skip_prompt": true }]
    }
  },
+  {
+    "context": "GitPanel && CommitEditor",
+    "use_key_equivalents": true,
+    "bindings": {
+      "escape": "git::Cancel"
+    }
+  },
  {
    "context": "GitDiff > Editor",
    "use_key_equivalents": true,
    "bindings": {
      "cmd-enter": "git::Commit",
+      "cmd-shift-enter": "git::Amend",
      "cmd-ctrl-y": "git::StageAll",
      "cmd-ctrl-shift-y": "git::UnstageAll"
    }
@@ -869,6 +885,7 @@
    "bindings": {
      "enter": "editor::Newline",
      "cmd-enter": "git::Commit",
+      "cmd-shift-enter": "git::Amend",
      "tab": "git_panel::FocusChanges",
      "shift-tab": "git_panel::FocusChanges",
      "alt-up": "git_panel::FocusChanges",
@@ -898,6 +915,7 @@
      "enter": "editor::Newline",
      "escape": "menu::Cancel",
      "cmd-enter": "git::Commit",
+      "cmd-shift-enter": "git::Amend",
      "alt-tab": "git::GenerateCommitMessage"
    }
  },
--- a/assets/keymaps/linux/jetbrains.json
+++ b/assets/keymaps/linux/jetbrains.json
@@ -58,7 +58,8 @@
      "ctrl-shift-home": "editor::SelectToBeginning",
      "ctrl-shift-end": "editor::SelectToEnd",
      "ctrl-f8": "editor::ToggleBreakpoint",
-      "ctrl-shift-f8": "editor::EditLogBreakpoint"
+      "ctrl-shift-f8": "editor::EditLogBreakpoint",
+      "ctrl-shift-u": "editor::ToggleCase"
    }
  },
  {
--- a/assets/keymaps/linux/sublime_text.json
+++ b/assets/keymaps/linux/sublime_text.json
@@ -37,6 +37,8 @@
      "ctrl-shift-a": "editor::SelectLargerSyntaxNode",
      "ctrl-shift-d": "editor::DuplicateSelection",
      "alt-f3": "editor::SelectAllMatches", // find_all_under
+      // "ctrl-f3": "", // find_under (cancels any selections)
+      // "cmd-alt-shift-g": "" // find_under_prev (cancels any selections)
      "f9": "editor::SortLinesCaseSensitive",
      "ctrl-f9": "editor::SortLinesCaseInsensitive",
      "f12": "editor::GoToDefinition",
@@ -49,7 +51,9 @@
      "ctrl-k ctrl-l": "editor::ConvertToLowerCase",
      "shift-alt-m": "markdown::OpenPreviewToTheSide",
      "ctrl-backspace": "editor::DeleteToPreviousWordStart",
-      "ctrl-delete": "editor::DeleteToNextWordEnd"
+      "ctrl-delete": "editor::DeleteToNextWordEnd",
+      "f3": "editor::FindNextMatch",
+      "shift-f3": "editor::FindPreviousMatch"
    }
  },
  {
@@ -58,6 +62,12 @@
      "ctrl-r": "outline::Toggle"
    }
  },
+  {
+    "context": "Editor && !agent_diff",
+    "bindings": {
+      "ctrl-k ctrl-z": "git::Restore"
+    }
+  },
  {
    "context": "Pane",
    "bindings": {
--- a/assets/keymaps/macos/jetbrains.json
+++ b/assets/keymaps/macos/jetbrains.json
@@ -55,7 +55,8 @@
      "cmd-shift-home": "editor::SelectToBeginning",
      "cmd-shift-end": "editor::SelectToEnd",
      "ctrl-f8": "editor::ToggleBreakpoint",
-      "ctrl-shift-f8": "editor::EditLogBreakpoint"
+      "ctrl-shift-f8": "editor::EditLogBreakpoint",
+      "cmd-shift-u": "editor::ToggleCase"
    }
  },
  {
--- a/assets/keymaps/macos/sublime_text.json
+++ b/assets/keymaps/macos/sublime_text.json
@@ -38,6 +38,8 @@
      "cmd-shift-a": "editor::SelectLargerSyntaxNode",
      "cmd-shift-d": "editor::DuplicateSelection",
      "ctrl-cmd-g": "editor::SelectAllMatches", // find_all_under
+      // "cmd-alt-g": "", // find_under (cancels any selections)
+      // "cmd-alt-shift-g": "" // find_under_prev (cancels any selections)
      "f5": "editor::SortLinesCaseSensitive",
      "ctrl-f5": "editor::SortLinesCaseInsensitive",
      "shift-f12": "editor::FindAllReferences",
@@ -51,7 +53,9 @@
      "cmd-shift-j": "editor::JoinLines",
      "shift-alt-m": "markdown::OpenPreviewToTheSide",
      "ctrl-backspace": "editor::DeleteToPreviousWordStart",
-      "ctrl-delete": "editor::DeleteToNextWordEnd"
+      "ctrl-delete": "editor::DeleteToNextWordEnd",
+      "cmd-g": "editor::FindNextMatch",
+      "cmd-shift-g": "editor::FindPreviousMatch"
    }
  },
  {
@@ -60,6 +64,12 @@
      "cmd-r": "outline::Toggle"
    }
  },
+  {
+    "context": "Editor && !agent_diff",
+    "bindings": {
+      "cmd-k cmd-z": "git::Restore"
+    }
+  },
  {
    "context": "Pane",
    "bindings": {
--- a/assets/keymaps/vim.json
+++ b/assets/keymaps/vim.json
@@ -203,6 +203,7 @@
      "c": "vim::PushChange",
      "shift-c": "vim::ChangeToEndOfLine",
      "d": "vim::PushDelete",
+      "delete": "vim::DeleteRight",
      "shift-d": "vim::DeleteToEndOfLine",
      "shift-j": "vim::JoinLines",
      "g shift-j": "vim::JoinLinesNoWhitespace",
@@ -538,6 +539,7 @@
    "bindings": {
      "d": "vim::CurrentLine",
      "s": "vim::PushDeleteSurrounds",
+      "v": "vim::PushForcedMotion", // "d v"
      "o": "editor::ToggleSelectedDiffHunks", // "d o"
      "shift-o": "git::ToggleStaged",
      "p": "git::Restore", // "d p"
@@ -586,6 +588,7 @@
    "context": "vim_operator == y",
    "bindings": {
      "y": "vim::CurrentLine",
+      "v": "vim::PushForcedMotion",
      "s": ["vim::PushAddSurrounds", {}]
    }
  },
--- a/assets/prompts/assistant_system_prompt.hbs
+++ b/assets/prompts/assistant_system_prompt.hbs
@@ -16,6 +16,8 @@ no need to create backup files (e.g. `.bak` files) because these files will just

 When attempting to resolve issues around failing tests, never simply remove the failing tests. Unless the user explicitly asks you to remove tests, ALWAYS attempt to fix the code causing the tests to fail.

+Ignore "TODO"-type comments unless they're relevant to the user's explicit request or the user specifically asks you to address them. It is, however, okay to include them in codebase summaries.
+
 <style>
 Editing code:
 - Make sure to take previous edits into account.
@@ -153,7 +155,7 @@ There are rules that apply to these root directories:
 {{#each worktrees}}
 {{#if rules_file}}

-`{{root_name}}/{{rules_file.rel_path}}`:
+`{{root_name}}/{{rules_file.path_in_worktree}}`:

 ``````
 {{{rules_file.text}}}
@@ -161,3 +163,8 @@ There are rules that apply to these root directories:
 {{/if}}
 {{/each}}
 {{/if}}
+
+<user_environment>
+Operating System: {{os}} ({{arch}})
+Shell: {{shell}}
+</user_environment>
--- a/assets/settings/default.json
+++ b/assets/settings/default.json
@@ -80,6 +80,8 @@
    // Values are clamped to the [0.0, 1.0] range.
    "inactive_opacity": 1.0
  },
+  // Layout mode of the bottom dock. Defaults to "contained"
+  "bottom_dock_layout": "contained",
  // The direction that you want to split panes horizontally. Defaults to "up"
  "pane_split_direction_horizontal": "up",
  // The direction that you want to split panes horizontally. Defaults to "left"
@@ -624,14 +626,14 @@
      // The provider to use.
      "provider": "zed.dev",
      // The model to use.
-      "model": "claude-3-5-sonnet-latest"
+      "model": "claude-3-7-sonnet-latest"
    },
    // The model to use when applying edits from the assistant.
    "editor_model": {
      // The provider to use.
      "provider": "zed.dev",
      // The model to use.
-      "model": "claude-3-5-sonnet-latest"
+      "model": "claude-3-7-sonnet-latest"
    },
    // When enabled, the agent can run potentially destructive actions without asking for your confirmation.
    "always_allow_tool_actions": false,
@@ -642,6 +644,7 @@
        // We don't know which of the context server tools are safe for the "Ask" profile, so we don't enable them by default.
        // "enable_all_context_servers": true,
        "tools": {
+          "contents": true,
          "diagnostics": true,
          "fetch": true,
          "list_directory": false,
@@ -656,9 +659,11 @@
        "name": "Write",
        "enable_all_context_servers": true,
        "tools": {
-          "bash": true,
+          "terminal": true,
          "batch_tool": true,
+          "code_actions": true,
          "code_symbols": true,
+          "contents": true,
          "copy_path": false,
          "create_file": true,
          "delete_path": false,
@@ -671,6 +676,7 @@
          "path_search": true,
          "read_file": true,
          "regex_search": true,
+          "rename": true,
          "symbol_info": true,
          "thinking": true
        }
@@ -1136,7 +1142,8 @@
  "code_actions_on_format": {},
  // Settings related to running tasks.
  "tasks": {
-    "variables": {}
+    "variables": {},
+    "enabled": true
  },
  // An object whose keys are language names, and whose values
  // are arrays of filenames or extensions of files that should
@@ -1456,6 +1463,8 @@
  "lsp": {
    // Specify the LSP name as a key here.
    // "rust-analyzer": {
+    //     // A special flag for rust-analyzer integration, to use server-provided tasks
+    //     enable_lsp_tasks": true,
    //     // These initialization options are merged into Zed's defaults
    //     "initialization_options": {
    //         "check": {
--- a/crates/agent/Cargo.toml
+++ b/crates/agent/Cargo.toml
@@ -31,6 +31,7 @@ client.workspace = true
 clock.workspace = true
 collections.workspace = true
 command_palette_hooks.workspace = true
+component.workspace = true
 context_server.workspace = true
 convert_case.workspace = true
 db.workspace = true
@@ -50,6 +51,7 @@ itertools.workspace = true
 language.workspace = true
 language_model.workspace = true
 language_model_selector.workspace = true
+linkme.workspace = true
 log.workspace = true
 lsp.workspace = true
 markdown.workspace = true
@@ -78,15 +80,16 @@ terminal.workspace = true
 terminal_view.workspace = true
 text.workspace = true
 theme.workspace = true
+thiserror.workspace = true
 time.workspace = true
 time_format.workspace = true
 ui.workspace = true
 ui_input.workspace = true
 util.workspace = true
 uuid.workspace = true
+workspace-hack.workspace = true
 workspace.workspace = true
 zed_actions.workspace = true
-workspace-hack.workspace = true

 [dev-dependencies]
 buffer_diff = { workspace = true, features = ["test-support"] }
--- a/crates/agent/src/active_thread.rs
+++ b/crates/agent/src/active_thread.rs
--- a/crates/agent/src/agent_diff.rs
+++ b/crates/agent/src/agent_diff.rs
@@ -1,4 +1,4 @@
-use crate::{Keep, Reject, Thread, ThreadEvent};
+use crate::{Keep, KeepAll, Reject, RejectAll, Thread, ThreadEvent};
 use anyhow::Result;
 use buffer_diff::DiffHunkStatus;
 use collections::HashSet;
@@ -843,7 +843,7 @@ impl ToolbarItemView for AgentDiffToolbar {
 }

 impl Render for AgentDiffToolbar {
-    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
        let agent_diff = match self.agent_diff(cx) {
            Some(ad) => ad,
            None => return div(),
@@ -855,6 +855,8 @@ impl Render for AgentDiffToolbar {
            return div();
        }

+        let focus_handle = agent_diff.focus_handle(cx);
+
        h_group_xl()
            .my_neg_1()
            .items_center()
@@ -864,15 +866,25 @@ impl Render for AgentDiffToolbar {
            .child(
                h_group_sm()
                    .child(
-                        Button::new("reject-all", "Reject All").on_click(cx.listener(
-                            |this, _, window, cx| {
-                                this.dispatch_action(&crate::RejectAll, window, cx)
-                            },
-                        )),
+                        Button::new("reject-all", "Reject All")
+                            .key_binding({
+                                KeyBinding::for_action_in(&RejectAll, &focus_handle, window, cx)
+                                    .map(|kb| kb.size(rems_from_px(12.)))
+                            })
+                            .on_click(cx.listener(|this, _, window, cx| {
+                                this.dispatch_action(&RejectAll, window, cx)
+                            })),
                    )
-                    .child(Button::new("keep-all", "Keep All").on_click(cx.listener(
-                        |this, _, window, cx| this.dispatch_action(&crate::KeepAll, window, cx),
-                    ))),
+                    .child(
+                        Button::new("keep-all", "Keep All")
+                            .key_binding({
+                                KeyBinding::for_action_in(&KeepAll, &focus_handle, window, cx)
+                                    .map(|kb| kb.size(rems_from_px(12.)))
+                            })
+                            .on_click(cx.listener(|this, _, window, cx| {
+                                this.dispatch_action(&KeepAll, window, cx)
+                            })),
+                    ),
            )
    }
 }
@@ -882,6 +894,7 @@ mod tests {
    use super::*;
    use crate::{ThreadStore, thread_store};
    use assistant_settings::AssistantSettings;
+    use assistant_tool::ToolWorkingSet;
    use context_server::ContextServerSettings;
    use editor::EditorSettings;
    use gpui::TestAppContext;
@@ -921,15 +934,16 @@ mod tests {
            })
            .unwrap();

-        let thread_store = cx.update(|cx| {
-            ThreadStore::new(
-                project.clone(),
-                Arc::default(),
-                Arc::new(PromptBuilder::new(None).unwrap()),
-                cx,
-            )
-            .unwrap()
-        });
+        let thread_store = cx
+            .update(|cx| {
+                ThreadStore::load(
+                    project.clone(),
+                    cx.new(|_| ToolWorkingSet::default()),
+                    Arc::new(PromptBuilder::new(None).unwrap()),
+                    cx,
+                )
+            })
+            .await;
        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
        let action_log = thread.read_with(cx, |thread, _| thread.action_log().clone());

--- a/crates/agent/src/assistant.rs
+++ b/crates/agent/src/assistant.rs
@@ -18,6 +18,7 @@ mod terminal_inline_assistant;
 mod thread;
 mod thread_history;
 mod thread_store;
+mod tool_compatibility;
 mod tool_use;
 mod ui;

@@ -46,10 +47,11 @@ pub use agent_diff::{AgentDiff, AgentDiffToolbar};
 actions!(
    agent,
    [
-        NewPromptEditor,
+        NewTextThread,
        ToggleContextPicker,
        ToggleProfileSelector,
        RemoveAllContext,
+        ExpandMessageEditor,
        OpenHistory,
        AddContextServer,
        RemoveSelectedThread,
--- a/crates/agent/src/assistant_configuration.rs
+++ b/crates/agent/src/assistant_configuration.rs
@@ -12,7 +12,9 @@ use fs::Fs;
 use gpui::{Action, AnyView, App, Entity, EventEmitter, FocusHandle, Focusable, Subscription};
 use language_model::{LanguageModelProvider, LanguageModelProviderId, LanguageModelRegistry};
 use settings::{Settings, update_settings_file};
-use ui::{Disclosure, Divider, DividerColor, ElevationIndex, Indicator, Switch, prelude::*};
+use ui::{
+    Disclosure, Divider, DividerColor, ElevationIndex, Indicator, Switch, Tooltip, prelude::*,
+};
 use util::ResultExt as _;
 use zed_actions::ExtensionCategoryFilter;

@@ -27,7 +29,7 @@ pub struct AssistantConfiguration {
    configuration_views_by_provider: HashMap<LanguageModelProviderId, AnyView>,
    context_server_manager: Entity<ContextServerManager>,
    expanded_context_server_tools: HashMap<Arc<str>, bool>,
-    tools: Arc<ToolWorkingSet>,
+    tools: Entity<ToolWorkingSet>,
    _registry_subscription: Subscription,
 }

@@ -35,7 +37,7 @@ impl AssistantConfiguration {
    pub fn new(
        fs: Arc<dyn Fs>,
        context_server_manager: Entity<ContextServerManager>,
-        tools: Arc<ToolWorkingSet>,
+        tools: Entity<ToolWorkingSet>,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
@@ -224,7 +226,7 @@ impl AssistantConfiguration {

    fn render_context_servers_section(&mut self, cx: &mut Context<Self>) -> impl IntoElement {
        let context_servers = self.context_server_manager.read(cx).all_servers().clone();
-        let tools_by_source = self.tools.tools_by_source(cx);
+        let tools_by_source = self.tools.read(cx).tools_by_source(cx);
        let empty = Vec::new();

        const SUBHEADING: &str = "Connect to context servers via the Model Context Protocol either via Zed extensions or directly.";
@@ -236,7 +238,10 @@ impl AssistantConfiguration {
            .child(
                v_flex()
                    .gap_0p5()
-                    .child(Headline::new("Context Servers (MCP)").size(HeadlineSize::Small))
+                    .child(
+                        Headline::new("Model Context Protocol (MCP) Servers")
+                            .size(HeadlineSize::Small),
+                    )
                    .child(Label::new(SUBHEADING).color(Color::Muted)),
            )
            .children(context_servers.into_iter().map(|context_server| {
@@ -262,10 +267,9 @@ impl AssistantConfiguration {
                    .bg(cx.theme().colors().editor_background)
                    .child(
                        h_flex()
+                            .p_1()
                            .justify_between()
-                            .px_2()
-                            .py_1()
-                            .when(are_tools_expanded, |element| {
+                            .when(are_tools_expanded && tool_count > 1, |element| {
                                element
                                    .border_b_1()
                                    .border_color(cx.theme().colors().border)
@@ -275,6 +279,7 @@ impl AssistantConfiguration {
                                    .gap_2()
                                    .child(
                                        Disclosure::new("tool-list-disclosure", are_tools_expanded)
+                                            .disabled(tool_count == 0)
                                            .on_click(cx.listener({
                                                let context_server_id = context_server.id();
                                                move |this, _event, _window, _cx| {
@@ -295,10 +300,11 @@ impl AssistantConfiguration {
                                    .child(Label::new(context_server.id()))
                                    .child(
                                        Label::new(format!("{tool_count} tools"))
-                                            .color(Color::Muted),
+                                            .color(Color::Muted)
+                                            .size(LabelSize::Small),
                                    ),
                            )
-                            .child(h_flex().child(
+                            .child(
                                Switch::new("context-server-switch", is_running.into()).on_click({
                                    let context_server_manager =
                                        self.context_server_manager.clone();
@@ -334,7 +340,7 @@ impl AssistantConfiguration {
                                        }
                                    }
                                }),
-                            )),
+                            ),
                    )
                    .map(|parent| {
                        if !are_tools_expanded {
@@ -344,14 +350,29 @@ impl AssistantConfiguration {
                        parent.child(v_flex().children(tools.into_iter().enumerate().map(
                            |(ix, tool)| {
                                h_flex()
-                                    .px_2()
+                                    .id("tool-item")
+                                    .pl_2()
+                                    .pr_1()
                                    .py_1()
+                                    .gap_2()
+                                    .justify_between()
                                    .when(ix < tool_count - 1, |element| {
                                        element
                                            .border_b_1()
-                                            .border_color(cx.theme().colors().border)
+                                            .border_color(cx.theme().colors().border_variant)
                                    })
-                                    .child(Label::new(tool.name()))
+                                    .child(
+                                        Label::new(tool.name())
+                                            .buffer_font(cx)
+                                            .size(LabelSize::Small),
+                                    )
+                                    .child(
+                                        IconButton::new(("tool-description", ix), IconName::Info)
+                                            .shape(ui::IconButtonShape::Square)
+                                            .icon_size(IconSize::Small)
+                                            .icon_color(Color::Ignored)
+                                            .tooltip(Tooltip::text(tool.description())),
+                                    )
                            },
                        )))
                    })
@@ -362,7 +383,7 @@ impl AssistantConfiguration {
                    .gap_2()
                    .child(
                        h_flex().w_full().child(
-                            Button::new("add-context-server", "Add Context Server")
+                            Button::new("add-context-server", "Add MCPs Directly")
                                .style(ButtonStyle::Filled)
                                .layer(ElevationIndex::ModalSurface)
                                .full_width()
@@ -378,7 +399,7 @@ impl AssistantConfiguration {
                        h_flex().w_full().child(
                            Button::new(
                                "install-context-server-extensions",
-                                "Install Context Server Extensions",
+                                "Install MCP Extensions",
                            )
                            .style(ButtonStyle::Filled)
                            .layer(ElevationIndex::ModalSurface)
--- a/crates/agent/src/assistant_configuration/manage_profiles_modal.rs
+++ b/crates/agent/src/assistant_configuration/manage_profiles_modal.rs
@@ -84,7 +84,7 @@ pub struct NewProfileMode {

 pub struct ManageProfilesModal {
    fs: Arc<dyn Fs>,
-    tools: Arc<ToolWorkingSet>,
+    tools: Entity<ToolWorkingSet>,
    thread_store: WeakEntity<ThreadStore>,
    focus_handle: FocusHandle,
    mode: Mode,
@@ -117,7 +117,7 @@ impl ManageProfilesModal {

    pub fn new(
        fs: Arc<dyn Fs>,
-        tools: Arc<ToolWorkingSet>,
+        tools: Entity<ToolWorkingSet>,
        thread_store: WeakEntity<ThreadStore>,
        window: &mut Window,
        cx: &mut Context<Self>,
--- a/crates/agent/src/assistant_configuration/tool_picker.rs
+++ b/crates/agent/src/assistant_configuration/tool_picker.rs
@@ -60,7 +60,7 @@ pub struct ToolPickerDelegate {
 impl ToolPickerDelegate {
    pub fn new(
        fs: Arc<dyn Fs>,
-        tool_set: Arc<ToolWorkingSet>,
+        tool_set: Entity<ToolWorkingSet>,
        thread_store: WeakEntity<ThreadStore>,
        profile_id: AgentProfileId,
        profile: AgentProfile,
@@ -68,7 +68,7 @@ impl ToolPickerDelegate {
    ) -> Self {
        let mut tool_entries = Vec::new();

-        for (source, tools) in tool_set.tools_by_source(cx) {
+        for (source, tools) in tool_set.read(cx).tools_by_source(cx) {
            tool_entries.extend(tools.into_iter().map(|tool| ToolEntry {
                name: tool.name().into(),
                source: source.clone(),
@@ -192,7 +192,7 @@ impl PickerDelegate for ToolPickerDelegate {
        if active_profile_id == &self.profile_id {
            self.thread_store
                .update(cx, |this, cx| {
-                    this.load_profile(&self.profile, cx);
+                    this.load_profile(self.profile.clone(), cx);
                })
                .log_err();
        }
--- a/crates/agent/src/assistant_model_selector.rs
+++ b/crates/agent/src/assistant_model_selector.rs
@@ -80,17 +80,16 @@ impl AssistantModelSelector {

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

+        let model_registry = LanguageModelRegistry::read_global(cx);
        let model = match self.model_type {
            ModelType::Default => model_registry.default_model(),
            ModelType::InlineAssistant => model_registry.inline_assistant_model(),
        };
-
-        let focus_handle = self.focus_handle.clone();
-        let model_name = match model {
-            Some(model) => model.model.name().0,
-            _ => SharedString::from("No model selected"),
+        let (model_name, model_icon) = match model {
+            Some(model) => (model.model.name().0, Some(model.provider.icon())),
+            _ => (SharedString::from("No model selected"), None),
        };

        LanguageModelSelectorPopoverMenu::new(
@@ -100,10 +99,16 @@ impl Render for AssistantModelSelector {
                .child(
                    h_flex()
                        .gap_0p5()
+                        .children(
+                            model_icon.map(|icon| {
+                                Icon::new(icon).color(Color::Muted).size(IconSize::Small)
+                            }),
+                        )
                        .child(
                            Label::new(model_name)
                                .size(LabelSize::Small)
-                                .color(Color::Muted),
+                                .color(Color::Muted)
+                                .ml_1(),
                        )
                        .child(
                            Icon::new(IconName::ChevronDown)
--- a/crates/agent/src/assistant_panel.rs
+++ b/crates/agent/src/assistant_panel.rs
@@ -44,8 +44,8 @@ use crate::thread::{Thread, ThreadError, ThreadId, TokenUsageRatio};
 use crate::thread_history::{PastContext, PastThread, ThreadHistory};
 use crate::thread_store::ThreadStore;
 use crate::{
-    AgentDiff, InlineAssistant, NewPromptEditor, NewThread, OpenActiveThreadAsMarkdown,
-    OpenAgentDiff, OpenHistory, ThreadEvent, ToggleContextPicker,
+    AgentDiff, ExpandMessageEditor, InlineAssistant, NewTextThread, NewThread,
+    OpenActiveThreadAsMarkdown, OpenAgentDiff, OpenHistory, ThreadEvent, ToggleContextPicker,
 };

 pub fn init(cx: &mut App) {
@@ -70,7 +70,7 @@ pub fn init(cx: &mut App) {
                        panel.update(cx, |panel, cx| panel.open_configuration(window, cx));
                    }
                })
-                .register_action(|workspace, _: &NewPromptEditor, window, cx| {
+                .register_action(|workspace, _: &NewTextThread, window, cx| {
                    if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
                        workspace.focus_panel::<AssistantPanel>(window, cx);
                        panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
@@ -90,6 +90,16 @@ pub fn init(cx: &mut App) {
                        let thread = panel.read(cx).thread.read(cx).thread().clone();
                        AgentDiff::deploy_in_workspace(thread, workspace, window, cx);
                    }
+                })
+                .register_action(|workspace, _: &ExpandMessageEditor, window, cx| {
+                    if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
+                        workspace.focus_panel::<AssistantPanel>(window, cx);
+                        panel.update(cx, |panel, cx| {
+                            panel.message_editor.update(cx, |editor, cx| {
+                                editor.expand_message_editor(&ExpandMessageEditor, window, cx);
+                            });
+                        });
+                    }
                });
        },
    )
@@ -193,11 +203,13 @@ impl AssistantPanel {
        cx: AsyncWindowContext,
    ) -> Task<Result<Entity<Self>>> {
        cx.spawn(async move |cx| {
-            let tools = Arc::new(ToolWorkingSet::default());
-            let thread_store = workspace.update(cx, |workspace, cx| {
-                let project = workspace.project().clone();
-                ThreadStore::new(project, tools.clone(), prompt_builder.clone(), cx)
-            })??;
+            let tools = cx.new(|_| ToolWorkingSet::default())?;
+            let thread_store = workspace
+                .update(cx, |workspace, cx| {
+                    let project = workspace.project().clone();
+                    ThreadStore::load(project, tools.clone(), prompt_builder.clone(), cx)
+                })?
+                .await;

            let slash_commands = Arc::new(SlashCommandWorkingSet::default());
            let context_store = workspace
@@ -227,14 +239,14 @@ impl AssistantPanel {
    ) -> Self {
        let thread = thread_store.update(cx, |this, cx| this.create_thread(cx));
        let fs = workspace.app_state().fs.clone();
-        let project = workspace.project().clone();
+        let project = workspace.project();
        let language_registry = project.read(cx).languages().clone();
        let workspace = workspace.weak_handle();
        let weak_self = cx.entity().downgrade();

        let message_editor_context_store = cx.new(|_cx| {
            crate::context_store::ContextStore::new(
-                workspace.clone(),
+                project.downgrade(),
                Some(thread_store.downgrade()),
            )
        });
@@ -344,7 +356,7 @@ impl AssistantPanel {

        let message_editor_context_store = cx.new(|_cx| {
            crate::context_store::ContextStore::new(
-                self.workspace.clone(),
+                self.project.downgrade(),
                Some(self.thread_store.downgrade()),
            )
        });
@@ -521,7 +533,7 @@ impl AssistantPanel {
                this.set_active_view(thread_view, window, cx);
                let message_editor_context_store = cx.new(|_cx| {
                    crate::context_store::ContextStore::new(
-                        this.workspace.clone(),
+                        this.project.downgrade(),
                        Some(this.thread_store.downgrade()),
                    )
                });
@@ -557,6 +569,7 @@ impl AssistantPanel {
            ActiveView::Configuration | ActiveView::History => {
                self.active_view =
                    ActiveView::thread(self.thread.read(cx).thread().clone(), window, cx);
+                self.message_editor.focus_handle(cx).focus(window);
                cx.notify();
            }
            _ => {}
@@ -855,13 +868,19 @@ impl AssistantPanel {
                if is_empty {
                    Label::new(Thread::DEFAULT_SUMMARY.clone())
                        .truncate()
+                        .ml_2()
                        .into_any_element()
                } else if summary.is_none() {
                    Label::new(LOADING_SUMMARY_PLACEHOLDER)
+                        .ml_2()
                        .truncate()
                        .into_any_element()
                } else {
-                    change_title_editor.clone().into_any_element()
+                    div()
+                        .ml_2()
+                        .w_full()
+                        .child(change_title_editor.clone())
+                        .into_any_element()
                }
            }
            ActiveView::PromptEditor => {
@@ -873,7 +892,7 @@ impl AssistantPanel {
                    })
                    .unwrap_or_else(|| SharedString::from(LOADING_SUMMARY_PLACEHOLDER));

-                Label::new(title).truncate().into_any_element()
+                Label::new(title).ml_2().truncate().into_any_element()
            }
            ActiveView::History => Label::new("History").truncate().into_any_element(),
            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
@@ -910,23 +929,25 @@ impl AssistantPanel {

        let go_back_button = match &self.active_view {
            ActiveView::History | ActiveView::Configuration => Some(
-                IconButton::new("go-back", IconName::ArrowLeft)
-                    .icon_size(IconSize::Small)
-                    .on_click(cx.listener(|this, _, window, cx| {
-                        this.go_back(&workspace::GoBack, window, cx);
-                    }))
-                    .tooltip({
-                        let focus_handle = focus_handle.clone();
-                        move |window, cx| {
-                            Tooltip::for_action_in(
-                                "Go Back",
-                                &workspace::GoBack,
-                                &focus_handle,
-                                window,
-                                cx,
-                            )
-                        }
-                    }),
+                div().pl_1().child(
+                    IconButton::new("go-back", IconName::ArrowLeft)
+                        .icon_size(IconSize::Small)
+                        .on_click(cx.listener(|this, _, window, cx| {
+                            this.go_back(&workspace::GoBack, window, cx);
+                        }))
+                        .tooltip({
+                            let focus_handle = focus_handle.clone();
+                            move |window, cx| {
+                                Tooltip::for_action_in(
+                                    "Go Back",
+                                    &workspace::GoBack,
+                                    &focus_handle,
+                                    window,
+                                    cx,
+                                )
+                            }
+                        }),
+                ),
            ),
            _ => None,
        };
@@ -944,8 +965,7 @@ impl AssistantPanel {
            .child(
                h_flex()
                    .w_full()
-                    .pl_2()
-                    .gap_2()
+                    .gap_1()
                    .children(go_back_button)
                    .child(self.render_title_view(window, cx)),
            )
@@ -1079,20 +1099,30 @@ impl AssistantPanel {
                                            window,
                                            cx,
                                            |menu, _window, _cx| {
-                                                menu.action(
-                                                    "New Prompt Editor",
-                                                    NewPromptEditor.boxed_clone(),
+                                                menu
+                                                    .when(!is_empty, |menu| {
+                                                        menu.action(
+                                                            "Start New From Summary",
+                                                            Box::new(NewThread {
+                                                                from_thread_id: Some(thread_id.clone()),
+                                                            }),
+                                                        ).separator()
+                                                    })
+                                                    .action(
+                                                    "New Text Thread",
+                                                    NewTextThread.boxed_clone(),
                                                )
-                                                .when(!is_empty, |menu| {
-                                                    menu.action(
-                                                        "Continue in New Thread",
-                                                        Box::new(NewThread {
-                                                            from_thread_id: Some(thread_id.clone()),
-                                                        }),
-                                                    )
-                                                })
-                                                .separator()
                                                .action("Settings", OpenConfiguration.boxed_clone())
+                                                .separator()
+                                                .action(
+                                                    "Install MCPs",
+                                                    zed_actions::Extensions {
+                                                        category_filter: Some(
+                                                            zed_actions::ExtensionCategoryFilter::ContextServers,
+                                                        ),
+                                                    }
+                                                    .boxed_clone(),
+                                                )
                                            },
                                        ))
                                    }),
@@ -1289,6 +1319,7 @@ impl AssistantPanel {
                let configuration_error_ref = &configuration_error;

                parent
+                    .overflow_hidden()
                    .p_1p5()
                    .justify_end()
                    .gap_1()
@@ -1621,7 +1652,21 @@ impl prompt_library::InlineAssistDelegate for PromptLibraryInlineAssist {
        cx: &mut Context<PromptLibrary>,
    ) {
        InlineAssistant::update_global(cx, |assistant, cx| {
-            assistant.assist(&prompt_editor, self.workspace.clone(), None, window, cx)
+            let Some(project) = self
+                .workspace
+                .upgrade()
+                .map(|workspace| workspace.read(cx).project().downgrade())
+            else {
+                return;
+            };
+            assistant.assist(
+                &prompt_editor,
+                self.workspace.clone(),
+                project,
+                None,
+                window,
+                cx,
+            )
        })
    }

--- a/crates/agent/src/context.rs
+++ b/crates/agent/src/context.rs
@@ -1,9 +1,9 @@
-use std::{ops::Range, sync::Arc};
+use std::{ops::Range, path::Path, sync::Arc};

 use gpui::{App, Entity, SharedString};
 use language::{Buffer, File};
 use language_model::LanguageModelRequestMessage;
-use project::ProjectPath;
+use project::{ProjectPath, Worktree};
 use serde::{Deserialize, Serialize};
 use text::{Anchor, BufferId};
 use ui::IconName;
@@ -69,10 +69,21 @@ pub struct FileContext {
 #[derive(Debug, Clone)]
 pub struct DirectoryContext {
    pub id: ContextId,
-    pub project_path: ProjectPath,
+    pub worktree: Entity<Worktree>,
+    pub path: Arc<Path>,
+    /// Buffers of the files within the directory.
    pub context_buffers: Vec<ContextBuffer>,
 }

+impl DirectoryContext {
+    pub fn project_path(&self, cx: &App) -> ProjectPath {
+        ProjectPath {
+            worktree_id: self.worktree.read(cx).id(),
+            path: self.path.clone(),
+        }
+    }
+}
+
 #[derive(Debug, Clone)]
 pub struct SymbolContext {
    pub id: ContextId,
@@ -86,12 +97,11 @@ pub struct FetchedUrlContext {
    pub text: SharedString,
 }

-// TODO: Model<Thread> holds onto the thread even if the thread is deleted. Can either handle this
-// explicitly or have a WeakModel<Thread> and remove during snapshot.
-
 #[derive(Debug, Clone)]
 pub struct ThreadContext {
    pub id: ContextId,
+    // TODO: Entity<Thread> holds onto the thread even if the thread is deleted. Should probably be
+    // a WeakEntity and handle removal from the UI when it has dropped.
    pub thread: Entity<Thread>,
    pub text: SharedString,
 }
@@ -105,12 +115,11 @@ impl ThreadContext {
    }
 }

-// TODO: Model<Buffer> holds onto the buffer even if the file is deleted and closed. Should remove
-// the context from the message editor in this case.
-
 #[derive(Clone)]
 pub struct ContextBuffer {
    pub id: BufferId,
+    // TODO: Entity<Buffer> holds onto the thread even if the thread is deleted. Should probably be
+    // a WeakEntity and handle removal from the UI when it has dropped.
    pub buffer: Entity<Buffer>,
    pub file: Arc<dyn File>,
    pub version: clock::Global,
--- a/crates/agent/src/context_picker.rs
+++ b/crates/agent/src/context_picker.rs
@@ -34,12 +34,6 @@ use crate::context_store::ContextStore;
 use crate::thread::ThreadId;
 use crate::thread_store::ThreadStore;

-#[derive(Debug, Clone, Copy)]
-pub enum ConfirmBehavior {
-    KeepOpen,
-    Close,
-}
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 enum ContextPickerMode {
    File,
@@ -105,7 +99,6 @@ pub(super) struct ContextPicker {
    workspace: WeakEntity<Workspace>,
    context_store: WeakEntity<ContextStore>,
    thread_store: Option<WeakEntity<ThreadStore>>,
-    confirm_behavior: ConfirmBehavior,
    _subscriptions: Vec<Subscription>,
 }

@@ -114,7 +107,6 @@ impl ContextPicker {
        workspace: WeakEntity<Workspace>,
        thread_store: Option<WeakEntity<ThreadStore>>,
        context_store: WeakEntity<ContextStore>,
-        confirm_behavior: ConfirmBehavior,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
@@ -143,7 +135,6 @@ impl ContextPicker {
            workspace,
            context_store,
            thread_store,
-            confirm_behavior,
            _subscriptions: subscriptions,
        }
    }
@@ -166,37 +157,32 @@ impl ContextPicker {

            let modes = supported_context_picker_modes(&self.thread_store);

-            let menu = menu
-                .when(has_recent, |menu| {
-                    menu.custom_row(|_, _| {
-                        div()
-                            .mb_1()
-                            .child(
-                                Label::new("Recent")
-                                    .color(Color::Muted)
-                                    .size(LabelSize::Small),
-                            )
-                            .into_any_element()
-                    })
+            menu.when(has_recent, |menu| {
+                menu.custom_row(|_, _| {
+                    div()
+                        .mb_1()
+                        .child(
+                            Label::new("Recent")
+                                .color(Color::Muted)
+                                .size(LabelSize::Small),
+                        )
+                        .into_any_element()
                })
-                .extend(recent_entries)
-                .when(has_recent, |menu| menu.separator())
-                .extend(modes.into_iter().map(|mode| {
-                    let context_picker = context_picker.clone();
+            })
+            .extend(recent_entries)
+            .when(has_recent, |menu| menu.separator())
+            .extend(modes.into_iter().map(|mode| {
+                let context_picker = context_picker.clone();

-                    ContextMenuEntry::new(mode.label())
-                        .icon(mode.icon())
-                        .icon_size(IconSize::XSmall)
-                        .icon_color(Color::Muted)
-                        .handler(move |window, cx| {
-                            context_picker.update(cx, |this, cx| this.select_mode(mode, window, cx))
-                        })
-                }));
-
-            match self.confirm_behavior {
-                ConfirmBehavior::KeepOpen => menu.keep_open_on_confirm(),
-                ConfirmBehavior::Close => menu,
-            }
+                ContextMenuEntry::new(mode.label())
+                    .icon(mode.icon())
+                    .icon_size(IconSize::XSmall)
+                    .icon_color(Color::Muted)
+                    .handler(move |window, cx| {
+                        context_picker.update(cx, |this, cx| this.select_mode(mode, window, cx))
+                    })
+            }))
+            .keep_open_on_confirm()
        });

        cx.subscribe(&menu, move |_, _, _: &DismissEvent, cx| {
@@ -227,7 +213,6 @@ impl ContextPicker {
                        context_picker.clone(),
                        self.workspace.clone(),
                        self.context_store.clone(),
-                        self.confirm_behavior,
                        window,
                        cx,
                    )
@@ -239,7 +224,6 @@ impl ContextPicker {
                        context_picker.clone(),
                        self.workspace.clone(),
                        self.context_store.clone(),
-                        self.confirm_behavior,
                        window,
                        cx,
                    )
@@ -251,7 +235,6 @@ impl ContextPicker {
                        context_picker.clone(),
                        self.workspace.clone(),
                        self.context_store.clone(),
-                        self.confirm_behavior,
                        window,
                        cx,
                    )
@@ -264,7 +247,6 @@ impl ContextPicker {
                            thread_store.clone(),
                            context_picker.clone(),
                            self.context_store.clone(),
-                            self.confirm_behavior,
                            window,
                            cx,
                        )
@@ -289,12 +271,14 @@ impl ContextPicker {
                path_prefix,
            } => {
                let context_store = self.context_store.clone();
+                let worktree_id = project_path.worktree_id;
                let path = project_path.path.clone();

                ContextMenuItem::custom_entry(
                    move |_window, cx| {
                        render_file_context_entry(
                            ElementId::NamedInteger("ctx-recent".into(), ix),
+                            worktree_id,
                            &path,
                            &path_prefix,
                            false,
@@ -466,7 +450,7 @@ fn recent_context_picker_entries(
    recent.extend(
        workspace
            .recent_navigation_history_iter(cx)
-            .filter(|(path, _)| !current_files.contains(&path.path.to_path_buf()))
+            .filter(|(path, _)| !current_files.contains(path))
            .take(4)
            .filter_map(|(project_path, _)| {
                project
@@ -507,14 +491,13 @@ fn recent_context_picker_entries(
    recent
 }

-pub(crate) fn insert_crease_for_mention(
+pub(crate) fn insert_fold_for_mention(
    excerpt_id: ExcerptId,
    crease_start: text::Anchor,
    content_len: usize,
    crease_label: SharedString,
    crease_icon_path: SharedString,
    editor_entity: Entity<Editor>,
-    window: &mut Window,
    cx: &mut App,
 ) {
    editor_entity.update(cx, |editor, cx| {
@@ -533,6 +516,7 @@ pub(crate) fn insert_crease_for_mention(
                crease_label,
                editor_entity.downgrade(),
            ),
+            merge_adjacent: false,
            ..Default::default()
        };

@@ -546,8 +530,9 @@ pub(crate) fn insert_crease_for_mention(
            render_trailer,
        );

-        editor.insert_creases(vec![crease.clone()], cx);
-        editor.fold_creases(vec![crease], false, window, cx);
+        editor.display_map.update(cx, |display_map, cx| {
+            display_map.fold(vec![crease], cx);
+        });
    });
 }

@@ -604,12 +589,13 @@ fn render_fold_icon_button(
                        .gap_1()
                        .child(
                            Icon::from_path(icon_path.clone())
-                                .size(IconSize::Small)
+                                .size(IconSize::XSmall)
                                .color(Color::Muted),
                        )
                        .child(
                            Label::new(label.clone())
                                .size(LabelSize::Small)
+                                .buffer_font(cx)
                                .single_line(),
                        ),
                )
--- a/crates/agent/src/context_picker/completion_provider.rs
+++ b/crates/agent/src/context_picker/completion_provider.rs
@@ -18,16 +18,133 @@ use text::{Anchor, ToPoint};
 use ui::prelude::*;
 use workspace::Workspace;

-use crate::context::AssistantContext;
+use crate::context_picker::file_context_picker::search_files;
+use crate::context_picker::symbol_context_picker::search_symbols;
 use crate::context_store::ContextStore;
 use crate::thread_store::ThreadStore;

 use super::fetch_context_picker::fetch_url_content;
-use super::thread_context_picker::ThreadContextEntry;
+use super::file_context_picker::FileMatch;
+use super::symbol_context_picker::SymbolMatch;
+use super::thread_context_picker::{ThreadContextEntry, ThreadMatch, search_threads};
 use super::{
-    ContextPickerMode, MentionLink, recent_context_picker_entries, supported_context_picker_modes,
+    ContextPickerMode, MentionLink, RecentEntry, recent_context_picker_entries,
+    supported_context_picker_modes,
 };

+pub(crate) enum Match {
+    Symbol(SymbolMatch),
+    File(FileMatch),
+    Thread(ThreadMatch),
+    Fetch(SharedString),
+    Mode(ContextPickerMode),
+}
+
+fn search(
+    mode: Option<ContextPickerMode>,
+    query: String,
+    cancellation_flag: Arc<AtomicBool>,
+    recent_entries: Vec<RecentEntry>,
+    thread_store: Option<WeakEntity<ThreadStore>>,
+    workspace: Entity<Workspace>,
+    cx: &mut App,
+) -> Task<Vec<Match>> {
+    match mode {
+        Some(ContextPickerMode::File) => {
+            let search_files_task =
+                search_files(query.clone(), cancellation_flag.clone(), &workspace, cx);
+            cx.background_spawn(async move {
+                search_files_task
+                    .await
+                    .into_iter()
+                    .map(Match::File)
+                    .collect()
+            })
+        }
+        Some(ContextPickerMode::Symbol) => {
+            let search_symbols_task =
+                search_symbols(query.clone(), cancellation_flag.clone(), &workspace, cx);
+            cx.background_spawn(async move {
+                search_symbols_task
+                    .await
+                    .into_iter()
+                    .map(Match::Symbol)
+                    .collect()
+            })
+        }
+        Some(ContextPickerMode::Thread) => {
+            if let Some(thread_store) = thread_store.as_ref().and_then(|t| t.upgrade()) {
+                let search_threads_task =
+                    search_threads(query.clone(), cancellation_flag.clone(), thread_store, cx);
+                cx.background_spawn(async move {
+                    search_threads_task
+                        .await
+                        .into_iter()
+                        .map(Match::Thread)
+                        .collect()
+                })
+            } else {
+                Task::ready(Vec::new())
+            }
+        }
+        Some(ContextPickerMode::Fetch) => {
+            if !query.is_empty() {
+                Task::ready(vec![Match::Fetch(query.into())])
+            } else {
+                Task::ready(Vec::new())
+            }
+        }
+        None => {
+            if query.is_empty() {
+                let mut matches = recent_entries
+                    .into_iter()
+                    .map(|entry| match entry {
+                        super::RecentEntry::File {
+                            project_path,
+                            path_prefix,
+                        } => Match::File(FileMatch {
+                            mat: fuzzy::PathMatch {
+                                score: 1.,
+                                positions: Vec::new(),
+                                worktree_id: project_path.worktree_id.to_usize(),
+                                path: project_path.path,
+                                path_prefix,
+                                is_dir: false,
+                                distance_to_relative_ancestor: 0,
+                            },
+                            is_recent: true,
+                        }),
+                        super::RecentEntry::Thread(thread_context_entry) => {
+                            Match::Thread(ThreadMatch {
+                                thread: thread_context_entry,
+                                is_recent: true,
+                            })
+                        }
+                    })
+                    .collect::<Vec<_>>();
+
+                matches.extend(
+                    supported_context_picker_modes(&thread_store)
+                        .into_iter()
+                        .map(Match::Mode),
+                );
+
+                Task::ready(matches)
+            } else {
+                let search_files_task =
+                    search_files(query.clone(), cancellation_flag.clone(), &workspace, cx);
+                cx.background_spawn(async move {
+                    search_files_task
+                        .await
+                        .into_iter()
+                        .map(Match::File)
+                        .collect()
+                })
+            }
+        }
+    }
+}
+
 pub struct ContextPickerCompletionProvider {
    workspace: WeakEntity<Workspace>,
    context_store: WeakEntity<ContextStore>,
@@ -50,97 +167,20 @@ impl ContextPickerCompletionProvider {
        }
    }

-    fn default_completions(
-        excerpt_id: ExcerptId,
-        source_range: Range<Anchor>,
-        context_store: Entity<ContextStore>,
-        thread_store: Option<WeakEntity<ThreadStore>>,
-        editor: Entity<Editor>,
-        workspace: Entity<Workspace>,
-        cx: &App,
-    ) -> Vec<Completion> {
-        let mut completions = Vec::new();
-
-        completions.extend(
-            recent_context_picker_entries(
-                context_store.clone(),
-                thread_store.clone(),
-                workspace.clone(),
-                cx,
-            )
-            .iter()
-            .filter_map(|entry| match entry {
-                super::RecentEntry::File {
-                    project_path,
-                    path_prefix,
-                } => Some(Self::completion_for_path(
-                    project_path.clone(),
-                    path_prefix,
-                    true,
-                    false,
-                    excerpt_id,
-                    source_range.clone(),
-                    editor.clone(),
-                    context_store.clone(),
-                    cx,
-                )),
-                super::RecentEntry::Thread(thread_context_entry) => {
-                    let thread_store = thread_store
-                        .as_ref()
-                        .and_then(|thread_store| thread_store.upgrade())?;
-                    Some(Self::completion_for_thread(
-                        thread_context_entry.clone(),
-                        excerpt_id,
-                        source_range.clone(),
-                        true,
-                        editor.clone(),
-                        context_store.clone(),
-                        thread_store,
-                    ))
-                }
-            }),
-        );
-
-        completions.extend(
-            supported_context_picker_modes(&thread_store)
-                .iter()
-                .map(|mode| {
-                    Completion {
-                        old_range: source_range.clone(),
-                        new_text: format!("@{} ", mode.mention_prefix()),
-                        label: CodeLabel::plain(mode.label().to_string(), None),
-                        icon_path: Some(mode.icon().path().into()),
-                        documentation: None,
-                        source: project::CompletionSource::Custom,
-                        insert_text_mode: None,
-                        // This ensures that when a user accepts this completion, the
-                        // completion menu will still be shown after "@category " is
-                        // inserted
-                        confirm: Some(Arc::new(|_, _, _| true)),
-                    }
-                }),
-        );
-        completions
-    }
-
-    fn build_code_label_for_full_path(
-        file_name: &str,
-        directory: Option<&str>,
-        cx: &App,
-    ) -> CodeLabel {
-        let comment_id = cx.theme().syntax().highlight_id("comment").map(HighlightId);
-        let mut label = CodeLabel::default();
-
-        label.push_str(&file_name, None);
-        label.push_str(" ", None);
-
-        if let Some(directory) = directory {
-            label.push_str(&directory, comment_id);
+    fn completion_for_mode(source_range: Range<Anchor>, mode: ContextPickerMode) -> Completion {
+        Completion {
+            replace_range: source_range.clone(),
+            new_text: format!("@{} ", mode.mention_prefix()),
+            label: CodeLabel::plain(mode.label().to_string(), None),
+            icon_path: Some(mode.icon().path().into()),
+            documentation: None,
+            source: project::CompletionSource::Custom,
+            insert_text_mode: None,
+            // This ensures that when a user accepts this completion, the
+            // completion menu will still be shown after "@category " is
+            // inserted
+            confirm: Some(Arc::new(|_, _, _| true)),
        }
-
-        label.filter_range = 0..label.text().len();
-
-        label
    }

    fn completion_for_thread(
@@ -160,7 +200,7 @@ impl ContextPickerCompletionProvider {
        let new_text = MentionLink::for_thread(&thread_entry);
        let new_text_len = new_text.len();
        Completion {
-            old_range: source_range.clone(),
+            replace_range: source_range.clone(),
            new_text,
            label: CodeLabel::plain(thread_entry.summary.to_string(), None),
            documentation: None,
@@ -205,7 +245,7 @@ impl ContextPickerCompletionProvider {
        let new_text = MentionLink::for_fetch(&url_to_fetch);
        let new_text_len = new_text.len();
        Completion {
-            old_range: source_range.clone(),
+            replace_range: source_range.clone(),
            new_text,
            label: CodeLabel::plain(url_to_fetch.to_string(), None),
            documentation: None,
@@ -261,11 +301,8 @@ impl ContextPickerCompletionProvider {
            path_prefix,
        );

-        let label = Self::build_code_label_for_full_path(
-            &file_name,
-            directory.as_ref().map(|s| s.as_ref()),
-            cx,
-        );
+        let label =
+            build_code_label_for_full_path(&file_name, directory.as_ref().map(|s| s.as_ref()), cx);
        let full_path = if let Some(directory) = directory {
            format!("{}{}", directory, file_name)
        } else {
@@ -287,7 +324,7 @@ impl ContextPickerCompletionProvider {
        let new_text = MentionLink::for_file(&file_name, &full_path);
        let new_text_len = new_text.len();
        Completion {
-            old_range: source_range.clone(),
+            replace_range: source_range.clone(),
            new_text,
            label,
            documentation: None,
@@ -350,7 +387,7 @@ impl ContextPickerCompletionProvider {
        let new_text = MentionLink::for_symbol(&symbol.name, &full_path);
        let new_text_len = new_text.len();
        Some(Completion {
-            old_range: source_range.clone(),
+            replace_range: source_range.clone(),
            new_text,
            label,
            documentation: None,
@@ -382,6 +419,22 @@ impl ContextPickerCompletionProvider {
    }
 }

+fn build_code_label_for_full_path(file_name: &str, directory: Option<&str>, cx: &App) -> CodeLabel {
+    let comment_id = cx.theme().syntax().highlight_id("comment").map(HighlightId);
+    let mut label = CodeLabel::default();
+
+    label.push_str(&file_name, None);
+    label.push_str(" ", None);
+
+    if let Some(directory) = directory {
+        label.push_str(&directory, comment_id);
+    }
+
+    label.filter_range = 0..label.text().len();
+
+    label
+}
+
 impl CompletionProvider for ContextPickerCompletionProvider {
    fn completions(
        &self,
@@ -404,10 +457,9 @@ impl CompletionProvider for ContextPickerCompletionProvider {
            return Task::ready(Ok(None));
        };

-        let Some(workspace) = self.workspace.upgrade() else {
-            return Task::ready(Ok(None));
-        };
-        let Some(context_store) = self.context_store.upgrade() else {
+        let Some((workspace, context_store)) =
+            self.workspace.upgrade().zip(self.context_store.upgrade())
+        else {
            return Task::ready(Ok(None));
        };

@@ -419,154 +471,89 @@ impl CompletionProvider for ContextPickerCompletionProvider {
        let editor = self.editor.clone();
        let http_client = workspace.read(cx).client().http_client().clone();

+        let MentionCompletion { mode, argument, .. } = state;
+        let query = argument.unwrap_or_else(|| "".to_string());
+
+        let recent_entries = recent_context_picker_entries(
+            context_store.clone(),
+            thread_store.clone(),
+            workspace.clone(),
+            cx,
+        );
+
+        let search_task = search(
+            mode,
+            query,
+            Arc::<AtomicBool>::default(),
+            recent_entries,
+            thread_store.clone(),
+            workspace.clone(),
+            cx,
+        );
+
        cx.spawn(async move |_, cx| {
-            let mut completions = Vec::new();
+            let matches = search_task.await;
+            let Some(editor) = editor.upgrade() else {
+                return Ok(None);
+            };

-            let MentionCompletion { mode, argument, .. } = state;
-
-            let query = argument.unwrap_or_else(|| "".to_string());
-            match mode {
-                Some(ContextPickerMode::File) => {
-                    let path_matches = cx
-                        .update(|cx| {
-                            super::file_context_picker::search_paths(
-                                query,
-                                Arc::<AtomicBool>::default(),
-                                &workspace,
-                                cx,
-                            )
-                        })?
-                        .await;
-
-                    if let Some(editor) = editor.upgrade() {
-                        completions.reserve(path_matches.len());
-                        cx.update(|cx| {
-                            completions.extend(path_matches.iter().map(|mat| {
-                                Self::completion_for_path(
-                                    ProjectPath {
-                                        worktree_id: WorktreeId::from_usize(mat.worktree_id),
-                                        path: mat.path.clone(),
-                                    },
-                                    &mat.path_prefix,
-                                    false,
-                                    mat.is_dir,
-                                    excerpt_id,
-                                    source_range.clone(),
-                                    editor.clone(),
-                                    context_store.clone(),
-                                    cx,
-                                )
-                            }));
-                        })?;
-                    }
-                }
-                Some(ContextPickerMode::Symbol) => {
-                    if let Some(editor) = editor.upgrade() {
-                        let symbol_matches = cx
-                            .update(|cx| {
-                                super::symbol_context_picker::search_symbols(
-                                    query,
-                                    Arc::new(AtomicBool::default()),
-                                    &workspace,
-                                    cx,
-                                )
-                            })?
-                            .await?;
-                        cx.update(|cx| {
-                            completions.extend(symbol_matches.into_iter().filter_map(
-                                |(_, symbol)| {
-                                    Self::completion_for_symbol(
-                                        symbol,
-                                        excerpt_id,
-                                        source_range.clone(),
-                                        editor.clone(),
-                                        context_store.clone(),
-                                        workspace.clone(),
-                                        cx,
-                                    )
+            Ok(Some(cx.update(|cx| {
+                matches
+                    .into_iter()
+                    .filter_map(|mat| match mat {
+                        Match::File(FileMatch { mat, is_recent }) => {
+                            Some(Self::completion_for_path(
+                                ProjectPath {
+                                    worktree_id: WorktreeId::from_usize(mat.worktree_id),
+                                    path: mat.path.clone(),
                                },
-                            ));
-                        })?;
-                    }
-                }
-                Some(ContextPickerMode::Fetch) => {
-                    if let Some(editor) = editor.upgrade() {
-                        if !query.is_empty() {
-                            completions.push(Self::completion_for_fetch(
-                                source_range.clone(),
-                                query.into(),
+                                &mat.path_prefix,
+                                is_recent,
+                                mat.is_dir,
                                excerpt_id,
+                                source_range.clone(),
                                editor.clone(),
                                context_store.clone(),
-                                http_client.clone(),
-                            ));
-                        }
-
-                        context_store.update(cx, |store, _| {
-                            let urls = store.context().iter().filter_map(|context| {
-                                if let AssistantContext::FetchedUrl(context) = context {
-                                    Some(context.url.clone())
-                                } else {
-                                    None
-                                }
-                            });
-                            for url in urls {
-                                completions.push(Self::completion_for_fetch(
-                                    source_range.clone(),
-                                    url,
-                                    excerpt_id,
-                                    editor.clone(),
-                                    context_store.clone(),
-                                    http_client.clone(),
-                                ));
-                            }
-                        })?;
-                    }
-                }
-                Some(ContextPickerMode::Thread) => {
-                    if let Some((thread_store, editor)) = thread_store
-                        .and_then(|thread_store| thread_store.upgrade())
-                        .zip(editor.upgrade())
-                    {
-                        let threads = cx
-                            .update(|cx| {
-                                super::thread_context_picker::search_threads(
-                                    query,
-                                    thread_store.clone(),
-                                    cx,
-                                )
-                            })?
-                            .await;
-                        for thread in threads {
-                            completions.push(Self::completion_for_thread(
-                                thread.clone(),
-                                excerpt_id,
-                                source_range.clone(),
-                                false,
-                                editor.clone(),
-                                context_store.clone(),
-                                thread_store.clone(),
-                            ));
-                        }
-                    }
-                }
-                None => {
-                    cx.update(|cx| {
-                        if let Some(editor) = editor.upgrade() {
-                            completions.extend(Self::default_completions(
-                                excerpt_id,
-                                source_range.clone(),
-                                context_store.clone(),
-                                thread_store.clone(),
-                                editor,
-                                workspace.clone(),
                                cx,
-                            ));
+                            ))
                        }
-                    })?;
-                }
-            }
-            Ok(Some(completions))
+                        Match::Symbol(SymbolMatch { symbol, .. }) => Self::completion_for_symbol(
+                            symbol,
+                            excerpt_id,
+                            source_range.clone(),
+                            editor.clone(),
+                            context_store.clone(),
+                            workspace.clone(),
+                            cx,
+                        ),
+                        Match::Thread(ThreadMatch {
+                            thread, is_recent, ..
+                        }) => {
+                            let thread_store = thread_store.as_ref().and_then(|t| t.upgrade())?;
+                            Some(Self::completion_for_thread(
+                                thread,
+                                excerpt_id,
+                                source_range.clone(),
+                                is_recent,
+                                editor.clone(),
+                                context_store.clone(),
+                                thread_store,
+                            ))
+                        }
+                        Match::Fetch(url) => Some(Self::completion_for_fetch(
+                            source_range.clone(),
+                            url,
+                            excerpt_id,
+                            editor.clone(),
+                            context_store.clone(),
+                            http_client.clone(),
+                        )),
+                        Match::Mode(mode) => {
+                            Some(Self::completion_for_mode(source_range.clone(), mode))
+                        }
+                    })
+                    .collect()
+            })?))
        })
    }

@@ -623,21 +610,20 @@ fn confirm_completion_callback(
    editor: Entity<Editor>,
    add_context_fn: impl Fn(&mut App) -> () + Send + Sync + 'static,
 ) -> Arc<dyn Fn(CompletionIntent, &mut Window, &mut App) -> bool + Send + Sync> {
-    Arc::new(move |_, window, cx| {
+    Arc::new(move |_, _, cx| {
        add_context_fn(cx);

        let crease_text = crease_text.clone();
        let crease_icon_path = crease_icon_path.clone();
        let editor = editor.clone();
-        window.defer(cx, move |window, cx| {
-            crate::context_picker::insert_crease_for_mention(
+        cx.defer(move |cx| {
+            crate::context_picker::insert_fold_for_mention(
                excerpt_id,
                start,
                content_len,
                crease_text,
                crease_icon_path,
                editor,
-                window,
                cx,
            );
        });
@@ -676,7 +662,12 @@ impl MentionCompletion {
        let mut end = last_mention_start + 1;
        if let Some(mode_text) = parts.next() {
            end += mode_text.len();
-            mode = ContextPickerMode::try_from(mode_text).ok();
+
+            if let Some(parsed_mode) = ContextPickerMode::try_from(mode_text).ok() {
+                mode = Some(parsed_mode);
+            } else {
+                argument = Some(mode_text.to_string());
+            }
            match rest_of_line[mode_text.len()..].find(|c: char| !c.is_whitespace()) {
                Some(whitespace_count) => {
                    if let Some(argument_text) = parts.next() {
@@ -702,13 +693,14 @@ impl MentionCompletion {
 #[cfg(test)]
 mod tests {
    use super::*;
-    use gpui::{Focusable, TestAppContext, VisualTestContext};
+    use editor::AnchorRangeExt;
+    use gpui::{EventEmitter, FocusHandle, Focusable, TestAppContext, VisualTestContext};
    use project::{Project, ProjectPath};
    use serde_json::json;
    use settings::SettingsStore;
-    use std::{ops::Deref, path::PathBuf};
+    use std::ops::Deref;
    use util::{path, separator};
-    use workspace::AppState;
+    use workspace::{AppState, Item};

    #[test]
    fn test_mention_completion_parse() {
@@ -768,9 +760,42 @@ mod tests {
            })
        );

+        assert_eq!(
+            MentionCompletion::try_parse("Lorem @main", 0),
+            Some(MentionCompletion {
+                source_range: 6..11,
+                mode: None,
+                argument: Some("main".to_string()),
+            })
+        );
+
        assert_eq!(MentionCompletion::try_parse("test@", 0), None);
    }

+    struct AtMentionEditor(Entity<Editor>);
+
+    impl Item for AtMentionEditor {
+        type Event = ();
+
+        fn include_in_nav_history() -> bool {
+            false
+        }
+    }
+
+    impl EventEmitter<()> for AtMentionEditor {}
+
+    impl Focusable for AtMentionEditor {
+        fn focus_handle(&self, cx: &App) -> FocusHandle {
+            self.0.read(cx).focus_handle(cx).clone()
+        }
+    }
+
+    impl Render for AtMentionEditor {
+        fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
+            self.0.clone().into_any_element()
+        }
+    }
+
    #[gpui::test]
    async fn test_context_completion_provider(cx: &mut TestAppContext) {
        init_test(cx);
@@ -846,28 +871,30 @@ mod tests {
                .unwrap();
        }

-        let item = workspace
-            .update_in(&mut cx, |workspace, window, cx| {
-                workspace.open_path(
-                    ProjectPath {
-                        worktree_id,
-                        path: PathBuf::from("editor").into(),
-                    },
+        let editor = workspace.update_in(&mut cx, |workspace, window, cx| {
+            let editor = cx.new(|cx| {
+                Editor::new(
+                    editor::EditorMode::full(),
+                    multi_buffer::MultiBuffer::build_simple("", cx),
                    None,
-                    true,
                    window,
                    cx,
                )
-            })
-            .await
-            .expect("Could not open test file");
-
-        let editor = cx.update(|_, cx| {
-            item.act_as::<Editor>(cx)
-                .expect("Opened test file wasn't an editor")
+            });
+            workspace.active_pane().update(cx, |pane, cx| {
+                pane.add_item(
+                    Box::new(cx.new(|_| AtMentionEditor(editor.clone()))),
+                    true,
+                    true,
+                    None,
+                    window,
+                    cx,
+                );
+            });
+            editor
        });

-        let context_store = cx.new(|_| ContextStore::new(workspace.downgrade(), None));
+        let context_store = cx.new(|_| ContextStore::new(project.downgrade(), None));

        let editor_entity = editor.downgrade();
        editor.update_in(&mut cx, |editor, window, cx| {
@@ -895,10 +922,10 @@ mod tests {
            assert_eq!(
                current_completion_labels(editor),
                &[
-                    "editor dir/",
                    "seven.txt dir/b/",
                    "six.txt dir/b/",
                    "five.txt dir/b/",
+                    "four.txt dir/a/",
                    "Files & Directories",
                    "Symbols",
                    "Fetch"
@@ -940,7 +967,7 @@ mod tests {
            assert_eq!(editor.text(cx), "Lorem [@one.txt](@file:dir/a/one.txt)",);
            assert!(!editor.has_visible_completions_menu());
            assert_eq!(
-                crease_ranges(editor, cx),
+                fold_ranges(editor, cx),
                vec![Point::new(0, 6)..Point::new(0, 37)]
            );
        });
@@ -951,7 +978,7 @@ mod tests {
            assert_eq!(editor.text(cx), "Lorem [@one.txt](@file:dir/a/one.txt) ",);
            assert!(!editor.has_visible_completions_menu());
            assert_eq!(
-                crease_ranges(editor, cx),
+                fold_ranges(editor, cx),
                vec![Point::new(0, 6)..Point::new(0, 37)]
            );
        });
@@ -965,7 +992,7 @@ mod tests {
            );
            assert!(!editor.has_visible_completions_menu());
            assert_eq!(
-                crease_ranges(editor, cx),
+                fold_ranges(editor, cx),
                vec![Point::new(0, 6)..Point::new(0, 37)]
            );
        });
@@ -979,7 +1006,7 @@ mod tests {
            );
            assert!(editor.has_visible_completions_menu());
            assert_eq!(
-                crease_ranges(editor, cx),
+                fold_ranges(editor, cx),
                vec![Point::new(0, 6)..Point::new(0, 37)]
            );
        });
@@ -993,14 +1020,14 @@ mod tests {
        editor.update(&mut cx, |editor, cx| {
            assert_eq!(
                editor.text(cx),
-                "Lorem [@one.txt](@file:dir/a/one.txt) Ipsum [@editor](@file:dir/editor)"
+                "Lorem [@one.txt](@file:dir/a/one.txt) Ipsum [@seven.txt](@file:dir/b/seven.txt)"
            );
            assert!(!editor.has_visible_completions_menu());
            assert_eq!(
-                crease_ranges(editor, cx),
+                fold_ranges(editor, cx),
                vec![
                    Point::new(0, 6)..Point::new(0, 37),
-                    Point::new(0, 44)..Point::new(0, 71)
+                    Point::new(0, 44)..Point::new(0, 79)
                ]
            );
        });
@@ -1010,14 +1037,14 @@ mod tests {
        editor.update(&mut cx, |editor, cx| {
            assert_eq!(
                editor.text(cx),
-                "Lorem [@one.txt](@file:dir/a/one.txt) Ipsum [@editor](@file:dir/editor)\n@"
+                "Lorem [@one.txt](@file:dir/a/one.txt) Ipsum [@seven.txt](@file:dir/b/seven.txt)\n@"
            );
            assert!(editor.has_visible_completions_menu());
            assert_eq!(
-                crease_ranges(editor, cx),
+                fold_ranges(editor, cx),
                vec![
                    Point::new(0, 6)..Point::new(0, 37),
-                    Point::new(0, 44)..Point::new(0, 71)
+                    Point::new(0, 44)..Point::new(0, 79)
                ]
            );
        });
@@ -1031,29 +1058,27 @@ mod tests {
        editor.update(&mut cx, |editor, cx| {
            assert_eq!(
                editor.text(cx),
-                "Lorem [@one.txt](@file:dir/a/one.txt) Ipsum [@editor](@file:dir/editor)\n[@seven.txt](@file:dir/b/seven.txt)"
+                "Lorem [@one.txt](@file:dir/a/one.txt) Ipsum [@seven.txt](@file:dir/b/seven.txt)\n[@six.txt](@file:dir/b/six.txt)"
            );
            assert!(!editor.has_visible_completions_menu());
            assert_eq!(
-                crease_ranges(editor, cx),
+                fold_ranges(editor, cx),
                vec![
                    Point::new(0, 6)..Point::new(0, 37),
-                    Point::new(0, 44)..Point::new(0, 71),
-                    Point::new(1, 0)..Point::new(1, 35)
+                    Point::new(0, 44)..Point::new(0, 79),
+                    Point::new(1, 0)..Point::new(1, 31)
                ]
            );
        });
    }

-    fn crease_ranges(editor: &Editor, cx: &mut App) -> Vec<Range<Point>> {
+    fn fold_ranges(editor: &Editor, cx: &mut App) -> Vec<Range<Point>> {
        let snapshot = editor.buffer().read(cx).snapshot(cx);
        editor.display_map.update(cx, |display_map, cx| {
            display_map
                .snapshot(cx)
-                .crease_snapshot
-                .crease_items_with_offsets(&snapshot)
-                .into_iter()
-                .map(|(_, range)| range)
+                .folds_in_range(0..snapshot.len())
+                .map(|fold| fold.range.to_point(&snapshot))
                .collect()
        })
    }
--- a/crates/agent/src/context_picker/fetch_context_picker.rs
+++ b/crates/agent/src/context_picker/fetch_context_picker.rs
@@ -11,7 +11,7 @@ use picker::{Picker, PickerDelegate};
 use ui::{Context, ListItem, Window, prelude::*};
 use workspace::Workspace;

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

 pub struct FetchContextPicker {
@@ -23,16 +23,10 @@ impl FetchContextPicker {
        context_picker: WeakEntity<ContextPicker>,
        workspace: WeakEntity<Workspace>,
        context_store: WeakEntity<ContextStore>,
-        confirm_behavior: ConfirmBehavior,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
-        let delegate = FetchContextPickerDelegate::new(
-            context_picker,
-            workspace,
-            context_store,
-            confirm_behavior,
-        );
+        let delegate = FetchContextPickerDelegate::new(context_picker, workspace, context_store);
        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        Self { picker }
@@ -62,7 +56,6 @@ pub struct FetchContextPickerDelegate {
    context_picker: WeakEntity<ContextPicker>,
    workspace: WeakEntity<Workspace>,
    context_store: WeakEntity<ContextStore>,
-    confirm_behavior: ConfirmBehavior,
    url: String,
 }

@@ -71,13 +64,11 @@ impl FetchContextPickerDelegate {
        context_picker: WeakEntity<ContextPicker>,
        workspace: WeakEntity<Workspace>,
        context_store: WeakEntity<ContextStore>,
-        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        FetchContextPickerDelegate {
            context_picker,
            workspace,
            context_store,
-            confirm_behavior,
            url: String::new(),
        }
    }
@@ -204,25 +195,15 @@ impl PickerDelegate for FetchContextPickerDelegate {

        let http_client = workspace.read(cx).client().http_client().clone();
        let url = self.url.clone();
-        let confirm_behavior = self.confirm_behavior;
        cx.spawn_in(window, async move |this, cx| {
            let text = cx
                .background_spawn(fetch_url_content(http_client, url.clone()))
                .await?;

-            this.update_in(cx, |this, window, cx| {
-                this.delegate
-                    .context_store
-                    .update(cx, |context_store, cx| {
-                        context_store.add_fetched_url(url, text, cx)
-                    })?;
-
-                match confirm_behavior {
-                    ConfirmBehavior::KeepOpen => {}
-                    ConfirmBehavior::Close => this.delegate.dismissed(window, cx),
-                }
-
-                anyhow::Ok(())
+            this.update(cx, |this, cx| {
+                this.delegate.context_store.update(cx, |context_store, cx| {
+                    context_store.add_fetched_url(url, text, cx)
+                })
            })??;

            anyhow::Ok(())
--- a/crates/agent/src/context_picker/file_context_picker.rs
+++ b/crates/agent/src/context_picker/file_context_picker.rs
@@ -11,9 +11,9 @@ use picker::{Picker, PickerDelegate};
 use project::{PathMatchCandidateSet, ProjectPath, WorktreeId};
 use ui::{ListItem, Tooltip, prelude::*};
 use util::ResultExt as _;
-use workspace::{Workspace, notifications::NotifyResultExt};
+use workspace::Workspace;

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

 pub struct FileContextPicker {
@@ -25,16 +25,10 @@ impl FileContextPicker {
        context_picker: WeakEntity<ContextPicker>,
        workspace: WeakEntity<Workspace>,
        context_store: WeakEntity<ContextStore>,
-        confirm_behavior: ConfirmBehavior,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
-        let delegate = FileContextPickerDelegate::new(
-            context_picker,
-            workspace,
-            context_store,
-            confirm_behavior,
-        );
+        let delegate = FileContextPickerDelegate::new(context_picker, workspace, context_store);
        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        Self { picker }
@@ -57,8 +51,7 @@ pub struct FileContextPickerDelegate {
    context_picker: WeakEntity<ContextPicker>,
    workspace: WeakEntity<Workspace>,
    context_store: WeakEntity<ContextStore>,
-    confirm_behavior: ConfirmBehavior,
-    matches: Vec<PathMatch>,
+    matches: Vec<FileMatch>,
    selected_index: usize,
 }

@@ -67,13 +60,11 @@ impl FileContextPickerDelegate {
        context_picker: WeakEntity<ContextPicker>,
        workspace: WeakEntity<Workspace>,
        context_store: WeakEntity<ContextStore>,
-        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        Self {
            context_picker,
            workspace,
            context_store,
-            confirm_behavior,
            matches: Vec::new(),
            selected_index: 0,
        }
@@ -114,7 +105,7 @@ impl PickerDelegate for FileContextPickerDelegate {
            return Task::ready(());
        };

-        let search_task = search_paths(query, Arc::<AtomicBool>::default(), &workspace, cx);
+        let search_task = search_files(query, Arc::<AtomicBool>::default(), &workspace, cx);

        cx.spawn_in(window, async move |this, cx| {
            // TODO: This should be probably be run in the background.
@@ -127,8 +118,8 @@ impl PickerDelegate for FileContextPickerDelegate {
        })
    }

-    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
-        let Some(mat) = self.matches.get(self.selected_index) else {
+    fn confirm(&mut self, _secondary: bool, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
+        let Some(FileMatch { mat, .. }) = self.matches.get(self.selected_index) else {
            return;
        };

@@ -153,17 +144,7 @@ impl PickerDelegate for FileContextPickerDelegate {
            return;
        };

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

    fn dismissed(&mut self, _: &mut Window, cx: &mut Context<Picker<Self>>) {
@@ -181,7 +162,7 @@ impl PickerDelegate for FileContextPickerDelegate {
        _window: &mut Window,
        cx: &mut Context<Picker<Self>>,
    ) -> Option<Self::ListItem> {
-        let path_match = &self.matches[ix];
+        let FileMatch { mat, .. } = &self.matches[ix];

        Some(
            ListItem::new(ix)
@@ -189,9 +170,10 @@ impl PickerDelegate for FileContextPickerDelegate {
                .toggle_state(selected)
                .child(render_file_context_entry(
                    ElementId::NamedInteger("file-ctx-picker".into(), ix),
-                    &path_match.path,
-                    &path_match.path_prefix,
-                    path_match.is_dir,
+                    WorktreeId::from_usize(mat.worktree_id),
+                    &mat.path,
+                    &mat.path_prefix,
+                    mat.is_dir,
                    self.context_store.clone(),
                    cx,
                )),
@@ -199,12 +181,17 @@ impl PickerDelegate for FileContextPickerDelegate {
    }
 }

-pub(crate) fn search_paths(
+pub struct FileMatch {
+    pub mat: PathMatch,
+    pub is_recent: bool,
+}
+
+pub(crate) fn search_files(
    query: String,
    cancellation_flag: Arc<AtomicBool>,
    workspace: &Entity<Workspace>,
    cx: &App,
-) -> Task<Vec<PathMatch>> {
+) -> Task<Vec<FileMatch>> {
    if query.is_empty() {
        let workspace = workspace.read(cx);
        let project = workspace.project().read(cx);
@@ -213,28 +200,34 @@ pub(crate) fn search_paths(
            .into_iter()
            .filter_map(|(project_path, _)| {
                let worktree = project.worktree_for_id(project_path.worktree_id, cx)?;
-                Some(PathMatch {
-                    score: 0.,
-                    positions: Vec::new(),
-                    worktree_id: project_path.worktree_id.to_usize(),
-                    path: project_path.path,
-                    path_prefix: worktree.read(cx).root_name().into(),
-                    distance_to_relative_ancestor: 0,
-                    is_dir: false,
+                Some(FileMatch {
+                    mat: PathMatch {
+                        score: 0.,
+                        positions: Vec::new(),
+                        worktree_id: project_path.worktree_id.to_usize(),
+                        path: project_path.path,
+                        path_prefix: worktree.read(cx).root_name().into(),
+                        distance_to_relative_ancestor: 0,
+                        is_dir: false,
+                    },
+                    is_recent: true,
                })
            });

        let file_matches = project.worktrees(cx).flat_map(|worktree| {
            let worktree = worktree.read(cx);
            let path_prefix: Arc<str> = worktree.root_name().into();
-            worktree.entries(false, 0).map(move |entry| PathMatch {
-                score: 0.,
-                positions: Vec::new(),
-                worktree_id: worktree.id().to_usize(),
-                path: entry.path.clone(),
-                path_prefix: path_prefix.clone(),
-                distance_to_relative_ancestor: 0,
-                is_dir: entry.is_dir(),
+            worktree.entries(false, 0).map(move |entry| FileMatch {
+                mat: PathMatch {
+                    score: 0.,
+                    positions: Vec::new(),
+                    worktree_id: worktree.id().to_usize(),
+                    path: entry.path.clone(),
+                    path_prefix: path_prefix.clone(),
+                    distance_to_relative_ancestor: 0,
+                    is_dir: entry.is_dir(),
+                },
+                is_recent: false,
            })
        });

@@ -269,6 +262,12 @@ pub(crate) fn search_paths(
                executor,
            )
            .await
+            .into_iter()
+            .map(|mat| FileMatch {
+                mat,
+                is_recent: false,
+            })
+            .collect::<Vec<_>>()
        })
    }
 }
@@ -311,19 +310,26 @@ pub fn extract_file_name_and_directory(

 pub fn render_file_context_entry(
    id: ElementId,
-    path: &Path,
+    worktree_id: WorktreeId,
+    path: &Arc<Path>,
    path_prefix: &Arc<str>,
    is_directory: bool,
    context_store: WeakEntity<ContextStore>,
    cx: &App,
 ) -> Stateful<Div> {
-    let (file_name, directory) = extract_file_name_and_directory(path, path_prefix);
+    let (file_name, directory) = extract_file_name_and_directory(&path, path_prefix);

    let added = context_store.upgrade().and_then(|context_store| {
+        let project_path = ProjectPath {
+            worktree_id,
+            path: path.clone(),
+        };
        if is_directory {
-            context_store.read(cx).includes_directory(path)
+            context_store.read(cx).includes_directory(&project_path)
        } else {
-            context_store.read(cx).will_include_file_path(path, cx)
+            context_store
+                .read(cx)
+                .will_include_file_path(&project_path, cx)
        }
    });

@@ -363,8 +369,9 @@ pub fn render_file_context_entry(
                    )
                    .child(Label::new("Added").size(LabelSize::Small)),
            ),
-            FileInclusion::InDirectory(dir_name) => {
-                let dir_name = dir_name.to_string_lossy().into_owned();
+            FileInclusion::InDirectory(directory_project_path) => {
+                // TODO: Consider using worktree full_path to include worktree name.
+                let directory_path = directory_project_path.path.to_string_lossy().into_owned();

                el.child(
                    h_flex()
@@ -378,7 +385,7 @@ pub fn render_file_context_entry(
                        )
                        .child(Label::new("Included").size(LabelSize::Small)),
                )
-                .tooltip(Tooltip::text(format!("in {dir_name}")))
+                .tooltip(Tooltip::text(format!("in {directory_path}")))
            }
        })
 }
--- a/crates/agent/src/context_picker/symbol_context_picker.rs
+++ b/crates/agent/src/context_picker/symbol_context_picker.rs
@@ -2,7 +2,7 @@ use std::cmp::Reverse;
 use std::sync::Arc;
 use std::sync::atomic::AtomicBool;

-use anyhow::{Context as _, Result};
+use anyhow::Result;
 use fuzzy::{StringMatch, StringMatchCandidate};
 use gpui::{
    App, AppContext, DismissEvent, Entity, FocusHandle, Focusable, Stateful, Task, WeakEntity,
@@ -15,7 +15,7 @@ use ui::{ListItem, prelude::*};
 use util::ResultExt as _;
 use workspace::Workspace;

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

 pub struct SymbolContextPicker {
@@ -27,16 +27,10 @@ impl SymbolContextPicker {
        context_picker: WeakEntity<ContextPicker>,
        workspace: WeakEntity<Workspace>,
        context_store: WeakEntity<ContextStore>,
-        confirm_behavior: ConfirmBehavior,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
-        let delegate = SymbolContextPickerDelegate::new(
-            context_picker,
-            workspace,
-            context_store,
-            confirm_behavior,
-        );
+        let delegate = SymbolContextPickerDelegate::new(context_picker, workspace, context_store);
        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        Self { picker }
@@ -59,7 +53,6 @@ pub struct SymbolContextPickerDelegate {
    context_picker: WeakEntity<ContextPicker>,
    workspace: WeakEntity<Workspace>,
    context_store: WeakEntity<ContextStore>,
-    confirm_behavior: ConfirmBehavior,
    matches: Vec<SymbolEntry>,
    selected_index: usize,
 }
@@ -69,13 +62,11 @@ impl SymbolContextPickerDelegate {
        context_picker: WeakEntity<ContextPicker>,
        workspace: WeakEntity<Workspace>,
        context_store: WeakEntity<ContextStore>,
-        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        Self {
            context_picker,
            workspace,
            context_store,
-            confirm_behavior,
            matches: Vec::new(),
            selected_index: 0,
        }
@@ -119,11 +110,7 @@ impl PickerDelegate for SymbolContextPickerDelegate {
        let search_task = search_symbols(query, Arc::<AtomicBool>::default(), &workspace, cx);
        let context_store = self.context_store.clone();
        cx.spawn_in(window, async move |this, cx| {
-            let symbols = search_task
-                .await
-                .context("Failed to load symbols")
-                .log_err()
-                .unwrap_or_default();
+            let symbols = search_task.await;

            let symbol_entries = context_store
                .read_with(cx, |context_store, cx| {
@@ -139,7 +126,7 @@ impl PickerDelegate for SymbolContextPickerDelegate {
        })
    }

-    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
        let Some(mat) = self.matches.get(self.selected_index) else {
            return;
        };
@@ -147,7 +134,6 @@ impl PickerDelegate for SymbolContextPickerDelegate {
            return;
        };

-        let confirm_behavior = self.confirm_behavior;
        let add_symbol_task = add_symbol(
            mat.symbol.clone(),
            true,
@@ -157,16 +143,12 @@ impl PickerDelegate for SymbolContextPickerDelegate {
        );

        let selected_index = self.selected_index;
-        cx.spawn_in(window, async move |this, cx| {
+        cx.spawn(async move |this, cx| {
            let included = add_symbol_task.await?;
-            this.update_in(cx, |this, window, cx| {
+            this.update(cx, |this, _| {
                if let Some(mat) = this.delegate.matches.get_mut(selected_index) {
                    mat.is_included = included;
                }
-                match confirm_behavior {
-                    ConfirmBehavior::KeepOpen => {}
-                    ConfirmBehavior::Close => this.delegate.dismissed(window, cx),
-                }
            })
        })
        .detach_and_log_err(cx);
@@ -285,12 +267,16 @@ fn find_matching_symbol(symbol: &Symbol, candidates: &[DocumentSymbol]) -> Optio
    }
 }

+pub struct SymbolMatch {
+    pub symbol: Symbol,
+}
+
 pub(crate) fn search_symbols(
    query: String,
    cancellation_flag: Arc<AtomicBool>,
    workspace: &Entity<Workspace>,
    cx: &mut App,
-) -> Task<Result<Vec<(StringMatch, Symbol)>>> {
+) -> Task<Vec<SymbolMatch>> {
    let symbols_task = workspace.update(cx, |workspace, cx| {
        workspace
            .project()
@@ -298,19 +284,28 @@ pub(crate) fn search_symbols(
    });
    let project = workspace.read(cx).project().clone();
    cx.spawn(async move |cx| {
-        let symbols = symbols_task.await?;
-        let (visible_match_candidates, external_match_candidates): (Vec<_>, Vec<_>) = project
-            .update(cx, |project, cx| {
-                symbols
-                    .iter()
-                    .enumerate()
-                    .map(|(id, symbol)| StringMatchCandidate::new(id, &symbol.label.filter_text()))
-                    .partition(|candidate| {
-                        project
-                            .entry_for_path(&symbols[candidate.id].path, cx)
-                            .map_or(false, |e| !e.is_ignored)
-                    })
-            })?;
+        let Some(symbols) = symbols_task.await.log_err() else {
+            return Vec::new();
+        };
+        let Some((visible_match_candidates, external_match_candidates)): Option<(Vec<_>, Vec<_>)> =
+            project
+                .update(cx, |project, cx| {
+                    symbols
+                        .iter()
+                        .enumerate()
+                        .map(|(id, symbol)| {
+                            StringMatchCandidate::new(id, &symbol.label.filter_text())
+                        })
+                        .partition(|candidate| {
+                            project
+                                .entry_for_path(&symbols[candidate.id].path, cx)
+                                .map_or(false, |e| !e.is_ignored)
+                        })
+                })
+                .log_err()
+        else {
+            return Vec::new();
+        };

        const MAX_MATCHES: usize = 100;
        let mut visible_matches = cx.background_executor().block(fuzzy::match_strings(
@@ -339,7 +334,7 @@ pub(crate) fn search_symbols(
        let mut matches = visible_matches;
        matches.append(&mut external_matches);

-        Ok(matches
+        matches
            .into_iter()
            .map(|mut mat| {
                let symbol = symbols[mat.candidate_id].clone();
@@ -347,19 +342,19 @@ pub(crate) fn search_symbols(
                for position in &mut mat.positions {
                    *position += filter_start;
                }
-                (mat, symbol)
+                SymbolMatch { symbol }
            })
-            .collect())
+            .collect()
    })
 }

 fn compute_symbol_entries(
-    symbols: Vec<(StringMatch, Symbol)>,
+    symbols: Vec<SymbolMatch>,
    context_store: &ContextStore,
    cx: &App,
 ) -> Vec<SymbolEntry> {
    let mut symbol_entries = Vec::with_capacity(symbols.len());
-    for (_, symbol) in symbols {
+    for SymbolMatch { symbol, .. } in symbols {
        let symbols_for_path = context_store.included_symbols_by_path().get(&symbol.path);
        let is_included = if let Some(symbols_for_path) = symbols_for_path {
            let mut is_included = false;
--- a/crates/agent/src/context_picker/thread_context_picker.rs
+++ b/crates/agent/src/context_picker/thread_context_picker.rs
@@ -1,11 +1,12 @@
 use std::sync::Arc;
+use std::sync::atomic::AtomicBool;

 use fuzzy::StringMatchCandidate;
 use gpui::{App, DismissEvent, Entity, FocusHandle, Focusable, Task, WeakEntity};
 use picker::{Picker, PickerDelegate};
 use ui::{ListItem, prelude::*};

-use crate::context_picker::{ConfirmBehavior, ContextPicker};
+use crate::context_picker::ContextPicker;
 use crate::context_store::{self, ContextStore};
 use crate::thread::ThreadId;
 use crate::thread_store::ThreadStore;
@@ -19,16 +20,11 @@ impl ThreadContextPicker {
        thread_store: WeakEntity<ThreadStore>,
        context_picker: WeakEntity<ContextPicker>,
        context_store: WeakEntity<context_store::ContextStore>,
-        confirm_behavior: ConfirmBehavior,
        window: &mut Window,
        cx: &mut Context<Self>,
    ) -> Self {
-        let delegate = ThreadContextPickerDelegate::new(
-            thread_store,
-            context_picker,
-            context_store,
-            confirm_behavior,
-        );
+        let delegate =
+            ThreadContextPickerDelegate::new(thread_store, context_picker, context_store);
        let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));

        ThreadContextPicker { picker }
@@ -57,7 +53,6 @@ pub struct ThreadContextPickerDelegate {
    thread_store: WeakEntity<ThreadStore>,
    context_picker: WeakEntity<ContextPicker>,
    context_store: WeakEntity<context_store::ContextStore>,
-    confirm_behavior: ConfirmBehavior,
    matches: Vec<ThreadContextEntry>,
    selected_index: usize,
 }
@@ -67,13 +62,11 @@ impl ThreadContextPickerDelegate {
        thread_store: WeakEntity<ThreadStore>,
        context_picker: WeakEntity<ContextPicker>,
        context_store: WeakEntity<context_store::ContextStore>,
-        confirm_behavior: ConfirmBehavior,
    ) -> Self {
        ThreadContextPickerDelegate {
            thread_store,
            context_picker,
            context_store,
-            confirm_behavior,
            matches: Vec::new(),
            selected_index: 0,
        }
@@ -114,11 +107,11 @@ impl PickerDelegate for ThreadContextPickerDelegate {
            return Task::ready(());
        };

-        let search_task = search_threads(query, threads, cx);
+        let search_task = search_threads(query, Arc::new(AtomicBool::default()), threads, cx);
        cx.spawn_in(window, async move |this, cx| {
            let matches = search_task.await;
            this.update(cx, |this, cx| {
-                this.delegate.matches = matches;
+                this.delegate.matches = matches.into_iter().map(|mat| mat.thread).collect();
                this.delegate.selected_index = 0;
                cx.notify();
            })
@@ -126,7 +119,7 @@ impl PickerDelegate for ThreadContextPickerDelegate {
        })
    }

-    fn confirm(&mut self, _secondary: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
+    fn confirm(&mut self, _secondary: bool, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
        let Some(entry) = self.matches.get(self.selected_index) else {
            return;
        };
@@ -137,20 +130,15 @@ impl PickerDelegate for ThreadContextPickerDelegate {

        let open_thread_task = thread_store.update(cx, |this, cx| this.open_thread(&entry.id, cx));

-        cx.spawn_in(window, async move |this, cx| {
+        cx.spawn(async move |this, cx| {
            let thread = open_thread_task.await?;
-            this.update_in(cx, |this, window, cx| {
+            this.update(cx, |this, cx| {
                this.delegate
                    .context_store
                    .update(cx, |context_store, cx| {
                        context_store.add_thread(thread, true, cx)
                    })
                    .ok();
-
-                match this.delegate.confirm_behavior {
-                    ConfirmBehavior::KeepOpen => {}
-                    ConfirmBehavior::Close => this.delegate.dismissed(window, cx),
-                }
            })
        })
        .detach_and_log_err(cx);
@@ -217,11 +205,18 @@ pub fn render_thread_context_entry(
        })
 }

+#[derive(Clone)]
+pub struct ThreadMatch {
+    pub thread: ThreadContextEntry,
+    pub is_recent: bool,
+}
+
 pub(crate) fn search_threads(
    query: String,
+    cancellation_flag: Arc<AtomicBool>,
    thread_store: Entity<ThreadStore>,
    cx: &mut App,
-) -> Task<Vec<ThreadContextEntry>> {
+) -> Task<Vec<ThreadMatch>> {
    let threads = thread_store.update(cx, |this, _cx| {
        this.threads()
            .into_iter()
@@ -236,6 +231,12 @@ pub(crate) fn search_threads(
    cx.background_spawn(async move {
        if query.is_empty() {
            threads
+                .into_iter()
+                .map(|thread| ThreadMatch {
+                    thread,
+                    is_recent: false,
+                })
+                .collect()
        } else {
            let candidates = threads
                .iter()
@@ -247,14 +248,17 @@ pub(crate) fn search_threads(
                &query,
                false,
                100,
-                &Default::default(),
+                &cancellation_flag,
                executor,
            )
            .await;

            matches
                .into_iter()
-                .map(|mat| threads[mat.candidate_id].clone())
+                .map(|mat| ThreadMatch {
+                    thread: threads[mat.candidate_id].clone(),
+                    is_recent: false,
+                })
                .collect()
        }
    })
--- a/crates/agent/src/context_store.rs
+++ b/crates/agent/src/context_store.rs
@@ -1,5 +1,5 @@
 use std::ops::Range;
-use std::path::{Path, PathBuf};
+use std::path::Path;
 use std::sync::Arc;

 use anyhow::{Context as _, Result, anyhow};
@@ -8,11 +8,10 @@ use futures::future::join_all;
 use futures::{self, Future, FutureExt, future};
 use gpui::{App, AppContext as _, Context, Entity, SharedString, Task, WeakEntity};
 use language::{Buffer, File};
-use project::{ProjectItem, ProjectPath, Worktree};
+use project::{Project, ProjectItem, ProjectPath, Worktree};
 use rope::Rope;
 use text::{Anchor, BufferId, OffsetRangeExt};
 use util::{ResultExt as _, maybe};
-use workspace::Workspace;

 use crate::ThreadStore;
 use crate::context::{
@@ -23,13 +22,13 @@ use crate::context_strip::SuggestedContext;
 use crate::thread::{Thread, ThreadId};

 pub struct ContextStore {
-    workspace: WeakEntity<Workspace>,
+    project: WeakEntity<Project>,
    context: Vec<AssistantContext>,
    thread_store: Option<WeakEntity<ThreadStore>>,
    // TODO: If an EntityId is used for all context types (like BufferId), can remove ContextId.
    next_context_id: ContextId,
    files: BTreeMap<BufferId, ContextId>,
-    directories: HashMap<PathBuf, ContextId>,
+    directories: HashMap<ProjectPath, ContextId>,
    symbols: HashMap<ContextSymbolId, ContextId>,
    symbol_buffers: HashMap<ContextSymbolId, Entity<Buffer>>,
    symbols_by_path: HashMap<ProjectPath, Vec<ContextSymbolId>>,
@@ -40,11 +39,11 @@ pub struct ContextStore {

 impl ContextStore {
    pub fn new(
-        workspace: WeakEntity<Workspace>,
+        project: WeakEntity<Project>,
        thread_store: Option<WeakEntity<ThreadStore>>,
    ) -> Self {
        Self {
-            workspace,
+            project,
            thread_store,
            context: Vec::new(),
            next_context_id: ContextId(0),
@@ -81,12 +80,7 @@ impl ContextStore {
        remove_if_exists: bool,
        cx: &mut Context<Self>,
    ) -> Task<Result<()>> {
-        let workspace = self.workspace.clone();
-
-        let Some(project) = workspace
-            .upgrade()
-            .map(|workspace| workspace.read(cx).project().clone())
-        else {
+        let Some(project) = self.project.upgrade() else {
            return Task::ready(Err(anyhow!("failed to read project")));
        };

@@ -99,7 +93,7 @@ impl ContextStore {
            let buffer_id = this.update(cx, |_, cx| buffer.read(cx).remote_id())?;

            let already_included = this.update(cx, |this, cx| {
-                match this.will_include_buffer(buffer_id, &project_path.path) {
+                match this.will_include_buffer(buffer_id, &project_path) {
                    Some(FileInclusion::Direct(context_id)) => {
                        if remove_if_exists {
                            this.remove_context(context_id, cx);
@@ -161,15 +155,11 @@ impl ContextStore {
        remove_if_exists: bool,
        cx: &mut Context<Self>,
    ) -> Task<Result<()>> {
-        let workspace = self.workspace.clone();
-        let Some(project) = workspace
-            .upgrade()
-            .map(|workspace| workspace.read(cx).project().clone())
-        else {
+        let Some(project) = self.project.upgrade() else {
            return Task::ready(Err(anyhow!("failed to read project")));
        };

-        let already_included = match self.includes_directory(&project_path.path) {
+        let already_included = match self.includes_directory(&project_path) {
            Some(FileInclusion::Direct(context_id)) => {
                if remove_if_exists {
                    self.remove_context(context_id, cx);
@@ -233,14 +223,12 @@ impl ContextStore {
                .collect::<Vec<_>>();

            if context_buffers.is_empty() {
-                return Err(anyhow!(
-                    "No text files found in {}",
-                    &project_path.path.display()
-                ));
+                let full_path = cx.update(|cx| worktree.read(cx).full_path(&project_path.path))?;
+                return Err(anyhow!("No text files found in {}", &full_path.display()));
            }

            this.update(cx, |this, cx| {
-                this.insert_directory(project_path, context_buffers, cx);
+                this.insert_directory(worktree, project_path, context_buffers, cx);
            })?;

            anyhow::Ok(())
@@ -249,17 +237,20 @@ impl ContextStore {

    fn insert_directory(
        &mut self,
+        worktree: Entity<Worktree>,
        project_path: ProjectPath,
        context_buffers: Vec<ContextBuffer>,
        cx: &mut Context<Self>,
    ) {
        let id = self.next_context_id.post_inc();
-        self.directories.insert(project_path.path.to_path_buf(), id);
+        let path = project_path.path.clone();
+        self.directories.insert(project_path, id);

        self.context
            .push(AssistantContext::Directory(DirectoryContext {
                id,
-                project_path,
+                worktree,
+                path,
                context_buffers,
            }));
        cx.notify();
@@ -488,23 +479,31 @@ impl ContextStore {
    /// Returns whether the buffer is already included directly in the context, or if it will be
    /// included in the context via a directory. Directory inclusion is based on paths rather than
    /// buffer IDs as the directory will be re-scanned.
-    pub fn will_include_buffer(&self, buffer_id: BufferId, path: &Path) -> Option<FileInclusion> {
+    pub fn will_include_buffer(
+        &self,
+        buffer_id: BufferId,
+        project_path: &ProjectPath,
+    ) -> Option<FileInclusion> {
        if let Some(context_id) = self.files.get(&buffer_id) {
            return Some(FileInclusion::Direct(*context_id));
        }

-        self.will_include_file_path_via_directory(path)
+        self.will_include_file_path_via_directory(project_path)
    }

    /// Returns whether this file path is already included directly in the context, or if it will be
    /// included in the context via a directory.
-    pub fn will_include_file_path(&self, path: &Path, cx: &App) -> Option<FileInclusion> {
+    pub fn will_include_file_path(
+        &self,
+        project_path: &ProjectPath,
+        cx: &App,
+    ) -> Option<FileInclusion> {
        if !self.files.is_empty() {
            let found_file_context = self.context.iter().find(|context| match &context {
                AssistantContext::File(file_context) => {
                    let buffer = file_context.context_buffer.buffer.read(cx);
-                    if let Some(file_path) = buffer_path_log_err(buffer, cx) {
-                        *file_path == *path
+                    if let Some(context_path) = buffer.project_path(cx) {
+                        &context_path == project_path
                    } else {
                        false
                    }
@@ -516,31 +515,40 @@ impl ContextStore {
            }
        }

-        self.will_include_file_path_via_directory(path)
+        self.will_include_file_path_via_directory(project_path)
    }

-    fn will_include_file_path_via_directory(&self, path: &Path) -> Option<FileInclusion> {
+    fn will_include_file_path_via_directory(
+        &self,
+        project_path: &ProjectPath,
+    ) -> Option<FileInclusion> {
        if self.directories.is_empty() {
            return None;
        }

-        let mut buf = path.to_path_buf();
+        let mut path_buf = project_path.path.to_path_buf();

-        while buf.pop() {
-            if let Some(_) = self.directories.get(&buf) {
-                return Some(FileInclusion::InDirectory(buf));
+        while path_buf.pop() {
+            // TODO: This isn't very efficient. Consider using a better representation of the
+            // directories map.
+            let directory_project_path = ProjectPath {
+                worktree_id: project_path.worktree_id,
+                path: path_buf.clone().into(),
+            };
+            if let Some(_) = self.directories.get(&directory_project_path) {
+                return Some(FileInclusion::InDirectory(directory_project_path));
            }
        }

        None
    }

-    pub fn includes_directory(&self, path: &Path) -> Option<FileInclusion> {
-        if let Some(context_id) = self.directories.get(path) {
+    pub fn includes_directory(&self, project_path: &ProjectPath) -> Option<FileInclusion> {
+        if let Some(context_id) = self.directories.get(project_path) {
            return Some(FileInclusion::Direct(*context_id));
        }

-        self.will_include_file_path_via_directory(path)
+        self.will_include_file_path_via_directory(project_path)
    }

    pub fn included_symbol(&self, symbol_id: &ContextSymbolId) -> Option<ContextId> {
@@ -574,13 +582,13 @@ impl ContextStore {
        }
    }

-    pub fn file_paths(&self, cx: &App) -> HashSet<PathBuf> {
+    pub fn file_paths(&self, cx: &App) -> HashSet<ProjectPath> {
        self.context
            .iter()
            .filter_map(|context| match context {
                AssistantContext::File(file) => {
                    let buffer = file.context_buffer.buffer.read(cx);
-                    buffer_path_log_err(buffer, cx).map(|p| p.to_path_buf())
+                    buffer.project_path(cx)
                }
                AssistantContext::Directory(_)
                | AssistantContext::Symbol(_)
@@ -597,7 +605,7 @@ impl ContextStore {

 pub enum FileInclusion {
    Direct(ContextId),
-    InDirectory(PathBuf),
+    InDirectory(ProjectPath),
 }

 // ContextBuffer without text.
@@ -664,19 +672,6 @@ fn collect_buffer_info_and_text(
    Ok((buffer_info, text_task))
 }

-pub fn buffer_path_log_err(buffer: &Buffer, cx: &App) -> Option<Arc<Path>> {
-    if let Some(file) = buffer.file() {
-        let mut path = file.path().clone();
-        if path.as_os_str().is_empty() {
-            path = file.full_path(cx).into();
-        }
-        Some(path)
-    } else {
-        log::error!("Buffer that had a path unexpectedly no longer has a path.");
-        None
-    }
-}
-
 fn to_fenced_codeblock(path: &Path, content: Rope) -> SharedString {
    let path_extension = path.extension().and_then(|ext| ext.to_str());
    let path_string = path.to_string_lossy();
@@ -752,13 +747,13 @@ pub fn refresh_context_store_text(
                    }
                }
                AssistantContext::Directory(directory_context) => {
+                    let directory_path = directory_context.project_path(cx);
                    let should_refresh = changed_buffers.is_empty()
                        || changed_buffers.iter().any(|buffer| {
-                            let buffer = buffer.read(cx);
-
-                            buffer_path_log_err(&buffer, cx).map_or(false, |path| {
-                                path.starts_with(&directory_context.project_path.path)
-                            })
+                            let Some(buffer_path) = buffer.read(cx).project_path(cx) else {
+                                return false;
+                            };
+                            buffer_path.starts_with(&directory_path)
                        });

                    if should_refresh {
@@ -845,14 +840,16 @@ fn refresh_directory_text(
    let context_buffers = future::join_all(futures);

    let id = directory_context.id;
-    let project_path = directory_context.project_path.clone();
+    let worktree = directory_context.worktree.clone();
+    let path = directory_context.path.clone();
    Some(cx.spawn(async move |cx| {
        let context_buffers = context_buffers.await;
        context_store
            .update(cx, |context_store, _| {
                let new_directory_context = DirectoryContext {
                    id,
-                    project_path,
+                    worktree,
+                    path,
                    context_buffers,
                };
                context_store.replace_context(AssistantContext::Directory(new_directory_context));
--- a/crates/agent/src/context_strip.rs
+++ b/crates/agent/src/context_strip.rs
@@ -1,3 +1,4 @@
+use std::path::Path;
 use std::rc::Rc;

 use collections::HashSet;
@@ -9,11 +10,12 @@ use gpui::{
 };
 use itertools::Itertools;
 use language::Buffer;
+use project::ProjectItem;
 use ui::{KeyBinding, PopoverMenu, PopoverMenuHandle, Tooltip, prelude::*};
 use workspace::{Workspace, notifications::NotifyResultExt};

 use crate::context::{ContextId, ContextKind};
-use crate::context_picker::{ConfirmBehavior, ContextPicker};
+use crate::context_picker::ContextPicker;
 use crate::context_store::ContextStore;
 use crate::thread::Thread;
 use crate::thread_store::ThreadStore;
@@ -50,7 +52,6 @@ impl ContextStrip {
                workspace.clone(),
                thread_store.clone(),
                context_store.downgrade(),
-                ConfirmBehavior::KeepOpen,
                window,
                cx,
            )
@@ -93,26 +94,23 @@ impl ContextStrip {
        let active_buffer_entity = editor.buffer().read(cx).as_singleton()?;
        let active_buffer = active_buffer_entity.read(cx);

-        let path = active_buffer.file()?.full_path(cx);
+        let project_path = active_buffer.project_path(cx)?;

        if self
            .context_store
            .read(cx)
-            .will_include_buffer(active_buffer.remote_id(), &path)
+            .will_include_buffer(active_buffer.remote_id(), &project_path)
            .is_some()
        {
            return None;
        }

-        let name = match path.file_name() {
-            Some(name) => name.to_string_lossy().into_owned().into(),
-            None => path.to_string_lossy().into_owned().into(),
-        };
+        let file_name = active_buffer.file()?.file_name(cx);

-        let icon_path = FileIcons::get_icon(&path, cx);
+        let icon_path = FileIcons::get_icon(&Path::new(&file_name), cx);

        Some(SuggestedContext::File {
-            name,
+            name: file_name.to_string_lossy().into_owned().into(),
            buffer: active_buffer_entity.downgrade(),
            icon_path,
        })
--- a/crates/agent/src/inline_assistant.rs
+++ b/crates/agent/src/inline_assistant.rs
@@ -28,6 +28,7 @@ use language_model::{LanguageModelRegistry, report_assistant_event};
 use multi_buffer::MultiBufferRow;
 use parking_lot::Mutex;
 use project::LspAction;
+use project::Project;
 use project::{CodeAction, ProjectTransaction};
 use prompt_store::PromptBuilder;
 use settings::{Settings, SettingsStore};
@@ -254,6 +255,7 @@ impl InlineAssistant {
                        assistant.assist(
                            &active_editor,
                            cx.entity().downgrade(),
+                            workspace.project().downgrade(),
                            thread_store,
                            window,
                            cx,
@@ -265,6 +267,7 @@ impl InlineAssistant {
                        assistant.assist(
                            &active_terminal,
                            cx.entity().downgrade(),
+                            workspace.project().downgrade(),
                            thread_store,
                            window,
                            cx,
@@ -318,6 +321,7 @@ impl InlineAssistant {
        &mut self,
        editor: &Entity<Editor>,
        workspace: WeakEntity<Workspace>,
+        project: WeakEntity<Project>,
        thread_store: Option<WeakEntity<ThreadStore>>,
        window: &mut Window,
        cx: &mut App,
@@ -425,7 +429,7 @@ impl InlineAssistant {
        for range in codegen_ranges {
            let assist_id = self.next_assist_id.post_inc();
            let context_store =
-                cx.new(|_cx| ContextStore::new(workspace.clone(), thread_store.clone()));
+                cx.new(|_cx| ContextStore::new(project.clone(), thread_store.clone()));
            let codegen = cx.new(|cx| {
                BufferCodegen::new(
                    editor.read(cx).buffer().clone(),
@@ -519,7 +523,7 @@ impl InlineAssistant {
        initial_prompt: String,
        initial_transaction_id: Option<TransactionId>,
        focus: bool,
-        workspace: WeakEntity<Workspace>,
+        workspace: Entity<Workspace>,
        thread_store: Option<WeakEntity<ThreadStore>>,
        window: &mut Window,
        cx: &mut App,
@@ -537,8 +541,8 @@ impl InlineAssistant {
            range.end = range.end.bias_right(&snapshot);
        }

-        let context_store =
-            cx.new(|_cx| ContextStore::new(workspace.clone(), thread_store.clone()));
+        let project = workspace.read(cx).project().downgrade();
+        let context_store = cx.new(|_cx| ContextStore::new(project, thread_store.clone()));

        let codegen = cx.new(|cx| {
            BufferCodegen::new(
@@ -562,7 +566,7 @@ impl InlineAssistant {
                codegen.clone(),
                self.fs.clone(),
                context_store,
-                workspace.clone(),
+                workspace.downgrade(),
                thread_store,
                window,
                cx,
@@ -589,7 +593,7 @@ impl InlineAssistant {
                end_block_id,
                range,
                codegen.clone(),
-                workspace.clone(),
+                workspace.downgrade(),
                window,
                cx,
            ),
@@ -1779,6 +1783,7 @@ impl CodeActionProvider for AssistantCodeActionProvider {
        let workspace = self.workspace.clone();
        let thread_store = self.thread_store.clone();
        window.spawn(cx, async move |cx| {
+            let workspace = workspace.upgrade().context("workspace was released")?;
            let editor = editor.upgrade().context("editor was released")?;
            let range = editor
                .update(cx, |editor, cx| {
--- a/crates/agent/src/message_editor.rs
+++ b/crates/agent/src/message_editor.rs
--- a/crates/agent/src/profile_selector.rs
+++ b/crates/agent/src/profile_selector.rs
@@ -86,7 +86,7 @@ impl ProfileSelector {

                            thread_store
                                .update(cx, |this, cx| {
-                                    this.load_profile_by_id(&profile_id, cx);
+                                    this.load_profile_by_id(profile_id.clone(), cx);
                                })
                                .log_err();
                        }
--- a/crates/agent/src/terminal_inline_assistant.rs
+++ b/crates/agent/src/terminal_inline_assistant.rs
@@ -16,6 +16,7 @@ use language_model::{
    ConfiguredModel, LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage,
    Role, report_assistant_event,
 };
+use project::Project;
 use prompt_store::PromptBuilder;
 use std::sync::Arc;
 use telemetry_events::{AssistantEventData, AssistantKind, AssistantPhase};
@@ -67,6 +68,7 @@ impl TerminalInlineAssistant {
        &mut self,
        terminal_view: &Entity<TerminalView>,
        workspace: WeakEntity<Workspace>,
+        project: WeakEntity<Project>,
        thread_store: Option<WeakEntity<ThreadStore>>,
        window: &mut Window,
        cx: &mut App,
@@ -75,8 +77,7 @@ impl TerminalInlineAssistant {
        let assist_id = self.next_assist_id.post_inc();
        let prompt_buffer =
            cx.new(|cx| MultiBuffer::singleton(cx.new(|cx| Buffer::local(String::new(), cx)), cx));
-        let context_store =
-            cx.new(|_cx| ContextStore::new(workspace.clone(), thread_store.clone()));
+        let context_store = cx.new(|_cx| ContextStore::new(project, thread_store.clone()));
        let codegen = cx.new(|_| TerminalCodegen::new(terminal, self.telemetry.clone()));

        let prompt_editor = cx.new(|cx| {
--- a/crates/agent/src/thread.rs
+++ b/crates/agent/src/thread.rs
@@ -2,38 +2,39 @@ use std::fmt::Write as _;
 use std::io::Write;
 use std::ops::Range;
 use std::sync::Arc;
+use std::time::Instant;

 use anyhow::{Context as _, Result, anyhow};
 use assistant_settings::AssistantSettings;
 use assistant_tool::{ActionLog, Tool, ToolWorkingSet};
 use chrono::{DateTime, Utc};
 use collections::{BTreeMap, HashMap};
-use fs::Fs;
+use feature_flags::{self, FeatureFlagAppExt};
 use futures::future::Shared;
 use futures::{FutureExt, StreamExt as _};
 use git::repository::DiffType;
 use gpui::{App, AppContext, Context, Entity, EventEmitter, SharedString, Task, WeakEntity};
 use language_model::{
-    ConfiguredModel, LanguageModel, LanguageModelCompletionEvent, LanguageModelRegistry,
-    LanguageModelRequest, LanguageModelRequestMessage, LanguageModelRequestTool,
-    LanguageModelToolResult, LanguageModelToolUseId, MaxMonthlySpendReachedError, MessageContent,
-    PaymentRequiredError, Role, StopReason, TokenUsage,
+    ConfiguredModel, LanguageModel, LanguageModelCompletionEvent, LanguageModelId,
+    LanguageModelKnownError, LanguageModelRegistry, LanguageModelRequest,
+    LanguageModelRequestMessage, LanguageModelRequestTool, LanguageModelToolResult,
+    LanguageModelToolUseId, MaxMonthlySpendReachedError, MessageContent, PaymentRequiredError,
+    Role, StopReason, TokenUsage,
 };
+use project::Project;
 use project::git_store::{GitStore, GitStoreCheckpoint, RepositoryState};
-use project::{Project, Worktree};
-use prompt_store::{
-    AssistantSystemPromptContext, PromptBuilder, RulesFile, WorktreeInfoForSystemPrompt,
-};
+use prompt_store::PromptBuilder;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use settings::Settings;
-use util::{ResultExt as _, TryFutureExt as _, maybe, post_inc};
+use thiserror::Error;
+use util::{ResultExt as _, TryFutureExt as _, post_inc};
 use uuid::Uuid;

 use crate::context::{AssistantContext, ContextId, format_context_as_string};
 use crate::thread_store::{
    SerializedMessage, SerializedMessageSegment, SerializedThread, SerializedToolResult,
-    SerializedToolUse,
+    SerializedToolUse, SharedProjectContext,
 };
 use crate::tool_use::{PendingToolUse, ToolUse, ToolUseState, USING_TOOL_MARKER};

@@ -183,7 +184,7 @@ pub struct ThreadCheckpoint {
    git_checkpoint: GitStoreCheckpoint,
 }

-#[derive(Copy, Clone, Debug)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum ThreadFeedback {
    Positive,
    Negative,
@@ -228,7 +229,7 @@ pub struct TotalTokenUsage {
    pub ratio: TokenUsageRatio,
 }

-#[derive(Default, PartialEq, Eq)]
+#[derive(Debug, Default, PartialEq, Eq)]
 pub enum TokenUsageRatio {
    #[default]
    Normal,
@@ -247,27 +248,39 @@ pub struct Thread {
    next_message_id: MessageId,
    context: BTreeMap<ContextId, AssistantContext>,
    context_by_message: HashMap<MessageId, Vec<ContextId>>,
-    system_prompt_context: Option<AssistantSystemPromptContext>,
+    project_context: SharedProjectContext,
    checkpoints_by_message: HashMap<MessageId, ThreadCheckpoint>,
    completion_count: usize,
    pending_completions: Vec<PendingCompletion>,
    project: Entity<Project>,
    prompt_builder: Arc<PromptBuilder>,
-    tools: Arc<ToolWorkingSet>,
+    tools: Entity<ToolWorkingSet>,
    tool_use: ToolUseState,
    action_log: Entity<ActionLog>,
    last_restore_checkpoint: Option<LastRestoreCheckpoint>,
    pending_checkpoint: Option<ThreadCheckpoint>,
    initial_project_snapshot: Shared<Task<Option<Arc<ProjectSnapshot>>>>,
    cumulative_token_usage: TokenUsage,
+    exceeded_window_error: Option<ExceededWindowError>,
    feedback: Option<ThreadFeedback>,
+    message_feedback: HashMap<MessageId, ThreadFeedback>,
+    last_auto_capture_at: Option<Instant>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ExceededWindowError {
+    /// Model used when last message exceeded context window
+    model_id: LanguageModelId,
+    /// Token count including last message
+    token_count: usize,
 }

 impl Thread {
    pub fn new(
        project: Entity<Project>,
-        tools: Arc<ToolWorkingSet>,
+        tools: Entity<ToolWorkingSet>,
        prompt_builder: Arc<PromptBuilder>,
+        system_prompt: SharedProjectContext,
        cx: &mut Context<Self>,
    ) -> Self {
        Self {
@@ -280,7 +293,7 @@ impl Thread {
            next_message_id: MessageId(0),
            context: BTreeMap::default(),
            context_by_message: HashMap::default(),
-            system_prompt_context: None,
+            project_context: system_prompt,
            checkpoints_by_message: HashMap::default(),
            completion_count: 0,
            pending_completions: Vec::new(),
@@ -298,7 +311,10 @@ impl Thread {
                    .shared()
            },
            cumulative_token_usage: TokenUsage::default(),
+            exceeded_window_error: None,
            feedback: None,
+            message_feedback: HashMap::default(),
+            last_auto_capture_at: None,
        }
    }

@@ -306,8 +322,9 @@ impl Thread {
        id: ThreadId,
        serialized: SerializedThread,
        project: Entity<Project>,
-        tools: Arc<ToolWorkingSet>,
+        tools: Entity<ToolWorkingSet>,
        prompt_builder: Arc<PromptBuilder>,
+        project_context: SharedProjectContext,
        cx: &mut Context<Self>,
    ) -> Self {
        let next_message_id = MessageId(
@@ -348,7 +365,7 @@ impl Thread {
            next_message_id,
            context: BTreeMap::default(),
            context_by_message: HashMap::default(),
-            system_prompt_context: None,
+            project_context,
            checkpoints_by_message: HashMap::default(),
            completion_count: 0,
            pending_completions: Vec::new(),
@@ -361,7 +378,10 @@ impl Thread {
            action_log: cx.new(|_| ActionLog::new(project)),
            initial_project_snapshot: Task::ready(serialized.initial_project_snapshot).shared(),
            cumulative_token_usage: serialized.cumulative_token_usage,
+            exceeded_window_error: None,
            feedback: None,
+            message_feedback: HashMap::default(),
+            last_auto_capture_at: None,
        }
    }

@@ -385,6 +405,10 @@ impl Thread {
        self.summary.clone()
    }

+    pub fn project_context(&self) -> SharedProjectContext {
+        self.project_context.clone()
+    }
+
    pub const DEFAULT_SUMMARY: SharedString = SharedString::new_static("New Thread");

    pub fn summary_or_default(&self) -> SharedString {
@@ -434,7 +458,7 @@ impl Thread {
        !self.pending_completions.is_empty() || !self.all_tools_finished()
    }

-    pub fn tools(&self) -> &Arc<ToolWorkingSet> {
+    pub fn tools(&self) -> &Entity<ToolWorkingSet> {
        &self.tools
    }

@@ -675,6 +699,9 @@ impl Thread {
                git_checkpoint,
            });
        }
+
+        self.auto_capture_telemetry(cx);
+
        message_id
    }

@@ -800,123 +827,13 @@ impl Thread {
                    })
                    .collect(),
                initial_project_snapshot,
-                cumulative_token_usage: this.cumulative_token_usage.clone(),
+                cumulative_token_usage: this.cumulative_token_usage,
                detailed_summary_state: this.detailed_summary_state.clone(),
+                exceeded_window_error: this.exceeded_window_error.clone(),
            })
        })
    }

-    pub fn set_system_prompt_context(&mut self, context: AssistantSystemPromptContext) {
-        self.system_prompt_context = Some(context);
-    }
-
-    pub fn system_prompt_context(&self) -> &Option<AssistantSystemPromptContext> {
-        &self.system_prompt_context
-    }
-
-    pub fn load_system_prompt_context(
-        &self,
-        cx: &App,
-    ) -> Task<(AssistantSystemPromptContext, Option<ThreadError>)> {
-        let project = self.project.read(cx);
-        let tasks = project
-            .visible_worktrees(cx)
-            .map(|worktree| {
-                Self::load_worktree_info_for_system_prompt(
-                    project.fs().clone(),
-                    worktree.read(cx),
-                    cx,
-                )
-            })
-            .collect::<Vec<_>>();
-
-        cx.spawn(async |_cx| {
-            let results = futures::future::join_all(tasks).await;
-            let mut first_err = None;
-            let worktrees = results
-                .into_iter()
-                .map(|(worktree, err)| {
-                    if first_err.is_none() && err.is_some() {
-                        first_err = err;
-                    }
-                    worktree
-                })
-                .collect::<Vec<_>>();
-            (AssistantSystemPromptContext::new(worktrees), first_err)
-        })
-    }
-
-    fn load_worktree_info_for_system_prompt(
-        fs: Arc<dyn Fs>,
-        worktree: &Worktree,
-        cx: &App,
-    ) -> Task<(WorktreeInfoForSystemPrompt, Option<ThreadError>)> {
-        let root_name = worktree.root_name().into();
-        let abs_path = worktree.abs_path();
-
-        // Note that Cline supports `.clinerules` being a directory, but that is not currently
-        // supported. This doesn't seem to occur often in GitHub repositories.
-        const RULES_FILE_NAMES: [&'static str; 6] = [
-            ".rules",
-            ".cursorrules",
-            ".windsurfrules",
-            ".clinerules",
-            ".github/copilot-instructions.md",
-            "CLAUDE.md",
-        ];
-        let selected_rules_file = RULES_FILE_NAMES
-            .into_iter()
-            .filter_map(|name| {
-                worktree
-                    .entry_for_path(name)
-                    .filter(|entry| entry.is_file())
-                    .map(|entry| (entry.path.clone(), worktree.absolutize(&entry.path)))
-            })
-            .next();
-
-        if let Some((rel_rules_path, abs_rules_path)) = selected_rules_file {
-            cx.spawn(async move |_| {
-                let rules_file_result = maybe!(async move {
-                    let abs_rules_path = abs_rules_path?;
-                    let text = fs.load(&abs_rules_path).await.with_context(|| {
-                        format!("Failed to load assistant rules file {:?}", abs_rules_path)
-                    })?;
-                    anyhow::Ok(RulesFile {
-                        rel_path: rel_rules_path,
-                        abs_path: abs_rules_path.into(),
-                        text: text.trim().to_string(),
-                    })
-                })
-                .await;
-                let (rules_file, rules_file_error) = match rules_file_result {
-                    Ok(rules_file) => (Some(rules_file), None),
-                    Err(err) => (
-                        None,
-                        Some(ThreadError::Message {
-                            header: "Error loading rules file".into(),
-                            message: format!("{err}").into(),
-                        }),
-                    ),
-                };
-                let worktree_info = WorktreeInfoForSystemPrompt {
-                    root_name,
-                    abs_path,
-                    rules_file,
-                };
-                (worktree_info, rules_file_error)
-            })
-        } else {
-            Task::ready((
-                WorktreeInfoForSystemPrompt {
-                    root_name,
-                    abs_path,
-                    rules_file: None,
-                },
-                None,
-            ))
-        }
-    }
-
    pub fn send_to_model(
        &mut self,
        model: Arc<dyn LanguageModel>,
@@ -927,13 +844,21 @@ impl Thread {
        if model.supports_tools() {
            request.tools = {
                let mut tools = Vec::new();
-                tools.extend(self.tools().enabled_tools(cx).into_iter().map(|tool| {
-                    LanguageModelRequestTool {
-                        name: tool.name(),
-                        description: tool.description(),
-                        input_schema: tool.input_schema(model.tool_input_format()),
-                    }
-                }));
+                tools.extend(
+                    self.tools()
+                        .read(cx)
+                        .enabled_tools(cx)
+                        .into_iter()
+                        .filter_map(|tool| {
+                            // Skip tools that cannot be supported
+                            let input_schema = tool.input_schema(model.tool_input_format()).ok()?;
+                            Some(LanguageModelRequestTool {
+                                name: tool.name(),
+                                description: tool.description(),
+                                input_schema,
+                            })
+                        }),
+                );

                tools
            };
@@ -966,10 +891,10 @@ impl Thread {
            temperature: None,
        };

-        if let Some(system_prompt_context) = self.system_prompt_context.as_ref() {
+        if let Some(project_context) = self.project_context.borrow().as_ref() {
            if let Some(system_prompt) = self
                .prompt_builder
-                .generate_assistant_system_prompt(system_prompt_context)
+                .generate_assistant_system_prompt(project_context)
                .context("failed to generate assistant system prompt")
                .log_err()
            {
@@ -980,7 +905,7 @@ impl Thread {
                });
            }
        } else {
-            log::error!("system_prompt_context not set.")
+            log::error!("project_context not set.")
        }

        for message in &self.messages {
@@ -1092,7 +1017,7 @@ impl Thread {
        let task = cx.spawn(async move |thread, cx| {
            let stream = model.stream_completion(request, &cx);
            let initial_token_usage =
-                thread.read_with(cx, |thread, _cx| thread.cumulative_token_usage.clone());
+                thread.read_with(cx, |thread, _cx| thread.cumulative_token_usage);
            let stream_completion = async {
                let mut events = stream.await?;
                let mut stop_reason = StopReason::EndTurn;
@@ -1114,9 +1039,9 @@ impl Thread {
                                stop_reason = reason;
                            }
                            LanguageModelCompletionEvent::UsageUpdate(token_usage) => {
-                                thread.cumulative_token_usage =
-                                    thread.cumulative_token_usage.clone() + token_usage.clone()
-                                        - current_token_usage.clone();
+                                thread.cumulative_token_usage = thread.cumulative_token_usage
+                                    + token_usage
+                                    - current_token_usage;
                                current_token_usage = token_usage;
                            }
                            LanguageModelCompletionEvent::Text(chunk) => {
@@ -1184,6 +1109,8 @@ impl Thread {
                        thread.touch_updated_at();
                        cx.emit(ThreadEvent::StreamedCompletion);
                        cx.notify();
+
+                        thread.auto_capture_telemetry(cx);
                    })?;

                    smol::future::yield_now().await;
@@ -1210,7 +1137,8 @@ impl Thread {
                    match result.as_ref() {
                        Ok(stop_reason) => match stop_reason {
                            StopReason::ToolUse => {
-                                cx.emit(ThreadEvent::UsePendingTools);
+                                let tool_uses = thread.use_pending_tools(cx);
+                                cx.emit(ThreadEvent::UsePendingTools { tool_uses });
                            }
                            StopReason::EndTurn => {}
                            StopReason::MaxTokens => {}
@@ -1222,6 +1150,20 @@ impl Thread {
                                cx.emit(ThreadEvent::ShowError(
                                    ThreadError::MaxMonthlySpendReached,
                                ));
+                            } else if let Some(known_error) =
+                                error.downcast_ref::<LanguageModelKnownError>()
+                            {
+                                match known_error {
+                                    LanguageModelKnownError::ContextWindowLimitExceeded {
+                                        tokens,
+                                    } => {
+                                        thread.exceeded_window_error = Some(ExceededWindowError {
+                                            model_id: model.id(),
+                                            token_count: *tokens,
+                                        });
+                                        cx.notify();
+                                    }
+                                }
                            } else {
                                let error_message = error
                                    .chain()
@@ -1237,10 +1179,12 @@ impl Thread {
                            thread.cancel_last_completion(cx);
                        }
                    }
-                    cx.emit(ThreadEvent::DoneStreaming);
+                    cx.emit(ThreadEvent::Stopped(result.map_err(Arc::new)));
+
+                    thread.auto_capture_telemetry(cx);

                    if let Ok(initial_usage) = initial_token_usage {
-                        let usage = thread.cumulative_token_usage.clone() - initial_usage;
+                        let usage = thread.cumulative_token_usage - initial_usage;

                        telemetry::event!(
                            "Assistant Thread Completion",
@@ -1398,10 +1342,8 @@ impl Thread {
        )
    }

-    pub fn use_pending_tools(
-        &mut self,
-        cx: &mut Context<Self>,
-    ) -> impl IntoIterator<Item = PendingToolUse> + use<> {
+    pub fn use_pending_tools(&mut self, cx: &mut Context<Self>) -> Vec<PendingToolUse> {
+        self.auto_capture_telemetry(cx);
        let request = self.to_completion_request(RequestKind::Chat, cx);
        let messages = Arc::new(request.messages);
        let pending_tool_uses = self
@@ -1413,8 +1355,8 @@ impl Thread {
            .collect::<Vec<_>>();

        for tool_use in pending_tool_uses.iter() {
-            if let Some(tool) = self.tools.tool(&tool_use.name, cx) {
-                if tool.needs_confirmation()
+            if let Some(tool) = self.tools.read(cx).tool(&tool_use.name, cx) {
+                if tool.needs_confirmation(&tool_use.input, cx)
                    && !AssistantSettings::get_global(cx).always_allow_tool_actions
                {
                    self.tool_use.confirm_tool_use(
@@ -1465,8 +1407,8 @@ impl Thread {
    ) -> Task<()> {
        let tool_name: Arc<str> = tool.name().into();

-        let run_tool = if self.tools.is_disabled(&tool.source(), &tool_name) {
-            Task::ready(Err(anyhow!("tool is disabled: {tool_name}")))
+        let tool_result = if self.tools.read(cx).is_disabled(&tool.source(), &tool_name) {
+            Task::ready(Err(anyhow!("tool is disabled: {tool_name}"))).into()
        } else {
            tool.run(
                input,
@@ -1479,7 +1421,7 @@ impl Thread {

        cx.spawn({
            async move |thread: WeakEntity<Thread>, cx| {
-                let output = run_tool.await;
+                let output = tool_result.output.await;

                thread
                    .update(cx, |thread, cx| {
@@ -1489,18 +1431,36 @@ impl Thread {
                            output,
                            cx,
                        );
-
-                        cx.emit(ThreadEvent::ToolFinished {
-                            tool_use_id,
-                            pending_tool_use,
-                            canceled: false,
-                        });
+                        thread.tool_finished(tool_use_id, pending_tool_use, false, cx);
                    })
                    .ok();
            }
        })
    }

+    fn tool_finished(
+        &mut self,
+        tool_use_id: LanguageModelToolUseId,
+        pending_tool_use: Option<PendingToolUse>,
+        canceled: bool,
+        cx: &mut Context<Self>,
+    ) {
+        if self.all_tools_finished() {
+            let model_registry = LanguageModelRegistry::read_global(cx);
+            if let Some(ConfiguredModel { model, .. }) = model_registry.default_model() {
+                self.attach_tool_results(cx);
+                if !canceled {
+                    self.send_to_model(model, RequestKind::Chat, cx);
+                }
+            }
+        }
+
+        cx.emit(ThreadEvent::ToolFinished {
+            tool_use_id,
+            pending_tool_use,
+        });
+    }
+
    pub fn attach_tool_results(&mut self, cx: &mut Context<Self>) {
        // Insert a user message to contain the tool results.
        self.insert_user_message(
@@ -1524,11 +1484,12 @@ impl Thread {
            let mut canceled = false;
            for pending_tool_use in self.tool_use.cancel_pending() {
                canceled = true;
-                cx.emit(ThreadEvent::ToolFinished {
-                    tool_use_id: pending_tool_use.id.clone(),
-                    pending_tool_use: Some(pending_tool_use),
-                    canceled: true,
-                });
+                self.tool_finished(
+                    pending_tool_use.id.clone(),
+                    Some(pending_tool_use),
+                    true,
+                    cx,
+                );
            }
            canceled
        };
@@ -1536,24 +1497,46 @@ impl Thread {
        canceled
    }

-    /// Returns the feedback given to the thread, if any.
    pub fn feedback(&self) -> Option<ThreadFeedback> {
        self.feedback
    }

-    /// Reports feedback about the thread and stores it in our telemetry backend.
-    pub fn report_feedback(
+    pub fn message_feedback(&self, message_id: MessageId) -> Option<ThreadFeedback> {
+        self.message_feedback.get(&message_id).copied()
+    }
+
+    pub fn report_message_feedback(
        &mut self,
+        message_id: MessageId,
        feedback: ThreadFeedback,
        cx: &mut Context<Self>,
    ) -> Task<Result<()>> {
+        if self.message_feedback.get(&message_id) == Some(&feedback) {
+            return Task::ready(Ok(()));
+        }
+
        let final_project_snapshot = Self::project_snapshot(self.project.clone(), cx);
        let serialized_thread = self.serialize(cx);
        let thread_id = self.id().clone();
        let client = self.project.read(cx).client();
-        self.feedback = Some(feedback);
+
+        let enabled_tool_names: Vec<String> = self
+            .tools()
+            .read(cx)
+            .enabled_tools(cx)
+            .iter()
+            .map(|tool| tool.name().to_string())
+            .collect();
+
+        self.message_feedback.insert(message_id, feedback);
+
        cx.notify();

+        let message_content = self
+            .message(message_id)
+            .map(|msg| msg.to_string())
+            .unwrap_or_default();
+
        cx.background_spawn(async move {
            let final_project_snapshot = final_project_snapshot.await;
            let serialized_thread = serialized_thread.await?;
@@ -1568,6 +1551,9 @@ impl Thread {
                "Assistant Thread Rated",
                rating,
                thread_id,
+                enabled_tool_names,
+                message_id = message_id.0,
+                message_content,
                thread_data,
                final_project_snapshot
            );
@@ -1577,6 +1563,52 @@ impl Thread {
        })
    }

+    pub fn report_feedback(
+        &mut self,
+        feedback: ThreadFeedback,
+        cx: &mut Context<Self>,
+    ) -> Task<Result<()>> {
+        let last_assistant_message_id = self
+            .messages
+            .iter()
+            .rev()
+            .find(|msg| msg.role == Role::Assistant)
+            .map(|msg| msg.id);
+
+        if let Some(message_id) = last_assistant_message_id {
+            self.report_message_feedback(message_id, feedback, cx)
+        } else {
+            let final_project_snapshot = Self::project_snapshot(self.project.clone(), cx);
+            let serialized_thread = self.serialize(cx);
+            let thread_id = self.id().clone();
+            let client = self.project.read(cx).client();
+            self.feedback = Some(feedback);
+            cx.notify();
+
+            cx.background_spawn(async move {
+                let final_project_snapshot = final_project_snapshot.await;
+                let serialized_thread = serialized_thread.await?;
+                let thread_data = serde_json::to_value(serialized_thread)
+                    .unwrap_or_else(|_| serde_json::Value::Null);
+
+                let rating = match feedback {
+                    ThreadFeedback::Positive => "positive",
+                    ThreadFeedback::Negative => "negative",
+                };
+                telemetry::event!(
+                    "Assistant Thread Rated",
+                    rating,
+                    thread_id,
+                    thread_data,
+                    final_project_snapshot
+                );
+                client.telemetry().flush_events();
+
+                Ok(())
+            })
+        }
+    }
+
    /// Create a snapshot of the current project state including git information and unsaved buffers.
    fn project_snapshot(
        project: Entity<Project>,
@@ -1788,8 +1820,52 @@ impl Thread {
        &self.project
    }

+    pub fn auto_capture_telemetry(&mut self, cx: &mut Context<Self>) {
+        if !cx.has_flag::<feature_flags::ThreadAutoCapture>() {
+            return;
+        }
+
+        let now = Instant::now();
+        if let Some(last) = self.last_auto_capture_at {
+            if now.duration_since(last).as_secs() < 10 {
+                return;
+            }
+        }
+
+        self.last_auto_capture_at = Some(now);
+
+        let thread_id = self.id().clone();
+        let github_login = self
+            .project
+            .read(cx)
+            .user_store()
+            .read(cx)
+            .current_user()
+            .map(|user| user.github_login.clone());
+        let client = self.project.read(cx).client().clone();
+        let serialize_task = self.serialize(cx);
+
+        cx.background_executor()
+            .spawn(async move {
+                if let Ok(serialized_thread) = serialize_task.await {
+                    if let Ok(thread_data) = serde_json::to_value(serialized_thread) {
+                        telemetry::event!(
+                            "Agent Thread Auto-Captured",
+                            thread_id = thread_id.to_string(),
+                            thread_data = thread_data,
+                            auto_capture_reason = "tracked_user",
+                            github_login = github_login
+                        );
+
+                        client.telemetry().flush_events();
+                    }
+                }
+            })
+            .detach();
+    }
+
    pub fn cumulative_token_usage(&self) -> TokenUsage {
-        self.cumulative_token_usage.clone()
+        self.cumulative_token_usage
    }

    pub fn total_token_usage(&self, cx: &App) -> TotalTokenUsage {
@@ -1800,6 +1876,16 @@ impl Thread {

        let max = model.model.max_token_count();

+        if let Some(exceeded_error) = &self.exceeded_window_error {
+            if model.model.id() == exceeded_error.model_id {
+                return TotalTokenUsage {
+                    total: exceeded_error.token_count,
+                    max,
+                    ratio: TokenUsageRatio::Exceeded,
+                };
+            }
+        }
+
        #[cfg(debug_assertions)]
        let warning_threshold: f32 = std::env::var("ZED_THREAD_WARNING_THRESHOLD")
            .unwrap_or("0.8".to_string())
@@ -1833,19 +1919,17 @@ impl Thread {

        self.tool_use
            .insert_tool_output(tool_use_id.clone(), tool_name, err, cx);
-
-        cx.emit(ThreadEvent::ToolFinished {
-            tool_use_id,
-            pending_tool_use: None,
-            canceled: true,
-        });
+        self.tool_finished(tool_use_id.clone(), None, true, cx);
    }
 }

-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Error)]
 pub enum ThreadError {
+    #[error("Payment required")]
    PaymentRequired,
+    #[error("Max monthly spend reached")]
    MaxMonthlySpendReached,
+    #[error("Message {header}: {message}")]
    Message {
        header: SharedString,
        message: SharedString,
@@ -1858,20 +1942,20 @@ pub enum ThreadEvent {
    StreamedCompletion,
    StreamedAssistantText(MessageId, String),
    StreamedAssistantThinking(MessageId, String),
-    DoneStreaming,
+    Stopped(Result<StopReason, Arc<anyhow::Error>>),
    MessageAdded(MessageId),
    MessageEdited(MessageId),
    MessageDeleted(MessageId),
    SummaryGenerated,
    SummaryChanged,
-    UsePendingTools,
+    UsePendingTools {
+        tool_uses: Vec<PendingToolUse>,
+    },
    ToolFinished {
        #[allow(unused)]
        tool_use_id: LanguageModelToolUseId,
        /// The pending tool use that corresponds to this tool.
        pending_tool_use: Option<PendingToolUse>,
-        /// Whether the tool was canceled by the user.
-        canceled: bool,
    },
    CheckpointChanged,
    ToolConfirmationNeeded,
@@ -1964,9 +2048,9 @@ fn main() {{
            thread.to_completion_request(RequestKind::Chat, cx)
        });

-        assert_eq!(request.messages.len(), 1);
+        assert_eq!(request.messages.len(), 2);
        let expected_full_message = format!("{}Please explain this code", expected_context);
-        assert_eq!(request.messages[0].string_contents(), expected_full_message);
+        assert_eq!(request.messages[1].string_contents(), expected_full_message);
    }

    #[gpui::test]
@@ -2057,20 +2141,20 @@ fn main() {{
        });

        // The request should contain all 3 messages
-        assert_eq!(request.messages.len(), 3);
+        assert_eq!(request.messages.len(), 4);

        // Check that the contexts are properly formatted in each message
-        assert!(request.messages[0].string_contents().contains("file1.rs"));
-        assert!(!request.messages[0].string_contents().contains("file2.rs"));
-        assert!(!request.messages[0].string_contents().contains("file3.rs"));
-
-        assert!(!request.messages[1].string_contents().contains("file1.rs"));
-        assert!(request.messages[1].string_contents().contains("file2.rs"));
+        assert!(request.messages[1].string_contents().contains("file1.rs"));
+        assert!(!request.messages[1].string_contents().contains("file2.rs"));
        assert!(!request.messages[1].string_contents().contains("file3.rs"));

        assert!(!request.messages[2].string_contents().contains("file1.rs"));
-        assert!(!request.messages[2].string_contents().contains("file2.rs"));
-        assert!(request.messages[2].string_contents().contains("file3.rs"));
+        assert!(request.messages[2].string_contents().contains("file2.rs"));
+        assert!(!request.messages[2].string_contents().contains("file3.rs"));
+
+        assert!(!request.messages[3].string_contents().contains("file1.rs"));
+        assert!(!request.messages[3].string_contents().contains("file2.rs"));
+        assert!(request.messages[3].string_contents().contains("file3.rs"));
    }

    #[gpui::test]
@@ -2108,9 +2192,9 @@ fn main() {{
            thread.to_completion_request(RequestKind::Chat, cx)
        });

-        assert_eq!(request.messages.len(), 1);
+        assert_eq!(request.messages.len(), 2);
        assert_eq!(
-            request.messages[0].string_contents(),
+            request.messages[1].string_contents(),
            "What is the best way to learn Rust?"
        );

@@ -2128,13 +2212,13 @@ fn main() {{
            thread.to_completion_request(RequestKind::Chat, cx)
        });

-        assert_eq!(request.messages.len(), 2);
+        assert_eq!(request.messages.len(), 3);
        assert_eq!(
-            request.messages[0].string_contents(),
+            request.messages[1].string_contents(),
            "What is the best way to learn Rust?"
        );
        assert_eq!(
-            request.messages[1].string_contents(),
+            request.messages[2].string_contents(),
            "Are there any good books?"
        );
    }
@@ -2255,18 +2339,19 @@ fn main() {{
        let (workspace, cx) =
            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));

-        let thread_store = cx.update(|_, cx| {
-            ThreadStore::new(
-                project.clone(),
-                Arc::default(),
-                Arc::new(PromptBuilder::new(None).unwrap()),
-                cx,
-            )
-            .unwrap()
-        });
+        let thread_store = cx
+            .update(|_, cx| {
+                ThreadStore::load(
+                    project.clone(),
+                    cx.new(|_| ToolWorkingSet::default()),
+                    Arc::new(PromptBuilder::new(None).unwrap()),
+                    cx,
+                )
+            })
+            .await;

        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
-        let context_store = cx.new(|_cx| ContextStore::new(workspace.downgrade(), None));
+        let context_store = cx.new(|_cx| ContextStore::new(project.downgrade(), None));

        (workspace, thread_store, thread, context_store)
    }
--- a/crates/agent/src/thread_history.rs
+++ b/crates/agent/src/thread_history.rs
@@ -4,11 +4,14 @@ use assistant_context_editor::SavedContextMetadata;
 use editor::{Editor, EditorEvent};
 use fuzzy::{StringMatch, StringMatchCandidate};
 use gpui::{
-    App, Entity, FocusHandle, Focusable, ScrollStrategy, Task, UniformListScrollHandle, WeakEntity,
-    Window, uniform_list,
+    App, Entity, FocusHandle, Focusable, ScrollStrategy, Stateful, Task, UniformListScrollHandle,
+    WeakEntity, Window, uniform_list,
 };
 use time::{OffsetDateTime, UtcOffset};
-use ui::{HighlightedLabel, IconButtonShape, ListItem, ListItemSpacing, Tooltip, prelude::*};
+use ui::{
+    HighlightedLabel, IconButtonShape, ListItem, ListItemSpacing, Scrollbar, ScrollbarState,
+    Tooltip, prelude::*,
+};
 use util::ResultExt;

 use crate::history_store::{HistoryEntry, HistoryStore};
@@ -26,6 +29,8 @@ pub struct ThreadHistory {
    matches: Vec<StringMatch>,
    _subscriptions: Vec<gpui::Subscription>,
    _search_task: Option<Task<()>>,
+    scrollbar_visibility: bool,
+    scrollbar_state: ScrollbarState,
 }

 impl ThreadHistory {
@@ -58,10 +63,13 @@ impl ThreadHistory {
            this.update_all_entries(cx);
        });

+        let scroll_handle = UniformListScrollHandle::default();
+        let scrollbar_state = ScrollbarState::new(scroll_handle.clone());
+
        Self {
            assistant_panel,
            history_store,
-            scroll_handle: UniformListScrollHandle::default(),
+            scroll_handle,
            selected_index: 0,
            search_query: SharedString::new_static(""),
            all_entries: entries,
@@ -69,6 +77,8 @@ impl ThreadHistory {
            search_editor,
            _subscriptions: vec![search_editor_subscription, history_store_subscription],
            _search_task: None,
+            scrollbar_visibility: true,
+            scrollbar_state,
        }
    }

@@ -220,6 +230,43 @@ impl ThreadHistory {
        cx.notify();
    }

+    fn render_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
+        if !(self.scrollbar_visibility || self.scrollbar_state.is_dragging()) {
+            return None;
+        }
+
+        Some(
+            div()
+                .occlude()
+                .id("thread-history-scroll")
+                .h_full()
+                .bg(cx.theme().colors().panel_background.opacity(0.8))
+                .border_l_1()
+                .border_color(cx.theme().colors().border_variant)
+                .absolute()
+                .right_1()
+                .top_0()
+                .bottom_0()
+                .w_4()
+                .pl_1()
+                .cursor_default()
+                .on_mouse_move(cx.listener(|_, _, _window, cx| {
+                    cx.notify();
+                    cx.stop_propagation()
+                }))
+                .on_hover(|_, _window, cx| {
+                    cx.stop_propagation();
+                })
+                .on_any_mouse_down(|_, _window, cx| {
+                    cx.stop_propagation();
+                })
+                .on_scroll_wheel(cx.listener(|_, _, _window, cx| {
+                    cx.notify();
+                }))
+                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
+        )
+    }
+
    fn confirm(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
        if let Some(entry) = self.get_match(self.selected_index) {
            let task_result = match entry {
@@ -305,7 +352,11 @@ impl Render for ThreadHistory {
                )
            })
            .child({
-                let view = v_flex().overflow_hidden().flex_grow();
+                let view = v_flex()
+                    .id("list-container")
+                    .relative()
+                    .overflow_hidden()
+                    .flex_grow();

                if self.all_entries.is_empty() {
                    view.justify_center()
@@ -322,59 +373,70 @@ impl Render for ThreadHistory {
                        ),
                    )
                } else {
-                    view.p_1().child(
-                        uniform_list(
-                            cx.entity().clone(),
-                            "thread-history",
-                            self.matched_count(),
-                            move |history, range, _window, _cx| {
-                                let range_start = range.start;
-                                let assistant_panel = history.assistant_panel.clone();
+                    view.pr_5()
+                        .child(
+                            uniform_list(
+                                cx.entity().clone(),
+                                "thread-history",
+                                self.matched_count(),
+                                move |history, range, _window, _cx| {
+                                    let range_start = range.start;
+                                    let assistant_panel = history.assistant_panel.clone();

-                                let render_item = |index: usize,
-                                                   entry: &HistoryEntry,
-                                                   highlight_positions: Vec<usize>|
-                                 -> Div {
-                                    h_flex().w_full().pb_1().child(match entry {
-                                        HistoryEntry::Thread(thread) => PastThread::new(
-                                            thread.clone(),
-                                            assistant_panel.clone(),
-                                            selected_index == index + range_start,
-                                            highlight_positions,
-                                        )
-                                        .into_any_element(),
-                                        HistoryEntry::Context(context) => PastContext::new(
-                                            context.clone(),
-                                            assistant_panel.clone(),
-                                            selected_index == index + range_start,
-                                            highlight_positions,
-                                        )
-                                        .into_any_element(),
-                                    })
-                                };
-
-                                if history.has_search_query() {
-                                    history.matches[range]
-                                        .iter()
-                                        .enumerate()
-                                        .filter_map(|(index, m)| {
-                                            history.all_entries.get(m.candidate_id).map(|entry| {
-                                                render_item(index, entry, m.positions.clone())
-                                            })
+                                    let render_item = |index: usize,
+                                                       entry: &HistoryEntry,
+                                                       highlight_positions: Vec<usize>|
+                                     -> Div {
+                                        h_flex().w_full().pb_1().child(match entry {
+                                            HistoryEntry::Thread(thread) => PastThread::new(
+                                                thread.clone(),
+                                                assistant_panel.clone(),
+                                                selected_index == index + range_start,
+                                                highlight_positions,
+                                            )
+                                            .into_any_element(),
+                                            HistoryEntry::Context(context) => PastContext::new(
+                                                context.clone(),
+                                                assistant_panel.clone(),
+                                                selected_index == index + range_start,
+                                                highlight_positions,
+                                            )
+                                            .into_any_element(),
                                        })
-                                        .collect()
-                                } else {
-                                    history.all_entries[range]
-                                        .iter()
-                                        .enumerate()
-                                        .map(|(index, entry)| render_item(index, entry, vec![]))
-                                        .collect()
-                                }
-                            },
+                                    };
+
+                                    if history.has_search_query() {
+                                        history.matches[range]
+                                            .iter()
+                                            .enumerate()
+                                            .filter_map(|(index, m)| {
+                                                history.all_entries.get(m.candidate_id).map(
+                                                    |entry| {
+                                                        render_item(
+                                                            index,
+                                                            entry,
+                                                            m.positions.clone(),
+                                                        )
+                                                    },
+                                                )
+                                            })
+                                            .collect()
+                                    } else {
+                                        history.all_entries[range]
+                                            .iter()
+                                            .enumerate()
+                                            .map(|(index, entry)| render_item(index, entry, vec![]))
+                                            .collect()
+                                    }
+                                },
+                            )
+                            .p_1()
+                            .track_scroll(self.scroll_handle.clone())
+                            .flex_grow(),
                        )
-                        .track_scroll(self.scroll_handle.clone())
-                        .flex_grow(),
-                    )
+                        .when_some(self.render_scrollbar(cx), |div, scrollbar| {
+                            div.child(scrollbar)
+                        })
                }
            })
    }
@@ -431,17 +493,6 @@ impl RenderOnce for PastThread {
            .end_slot(
                h_flex()
                    .gap_1p5()
-                    .child(
-                        Label::new("Thread")
-                            .color(Color::Muted)
-                            .size(LabelSize::XSmall),
-                    )
-                    .child(
-                        div()
-                            .size(px(3.))
-                            .rounded_full()
-                            .bg(cx.theme().colors().text_disabled),
-                    )
                    .child(
                        Label::new(thread_timestamp)
                            .color(Color::Muted)
@@ -451,13 +502,9 @@ impl RenderOnce for PastThread {
                        IconButton::new("delete", IconName::TrashAlt)
                            .shape(IconButtonShape::Square)
                            .icon_size(IconSize::XSmall)
+                            .icon_color(Color::Muted)
                            .tooltip(move |window, cx| {
-                                Tooltip::for_action(
-                                    "Delete Thread",
-                                    &RemoveSelectedThread,
-                                    window,
-                                    cx,
-                                )
+                                Tooltip::for_action("Delete", &RemoveSelectedThread, window, cx)
                            })
                            .on_click({
                                let assistant_panel = self.assistant_panel.clone();
@@ -538,17 +585,6 @@ impl RenderOnce for PastContext {
        .end_slot(
            h_flex()
                .gap_1p5()
-                .child(
-                    Label::new("Prompt Editor")
-                        .color(Color::Muted)
-                        .size(LabelSize::XSmall),
-                )
-                .child(
-                    div()
-                        .size(px(3.))
-                        .rounded_full()
-                        .bg(cx.theme().colors().text_disabled),
-                )
                .child(
                    Label::new(context_timestamp)
                        .color(Color::Muted)
@@ -558,13 +594,9 @@ impl RenderOnce for PastContext {
                    IconButton::new("delete", IconName::TrashAlt)
                        .shape(IconButtonShape::Square)
                        .icon_size(IconSize::XSmall)
+                        .icon_color(Color::Muted)
                        .tooltip(move |window, cx| {
-                            Tooltip::for_action(
-                                "Delete Prompt Editor",
-                                &RemoveSelectedThread,
-                                window,
-                                cx,
-                            )
+                            Tooltip::for_action("Delete", &RemoveSelectedThread, window, cx)
                        })
                        .on_click({
                            let assistant_panel = self.assistant_panel.clone();
--- a/crates/agent/src/thread_store.rs
+++ b/crates/agent/src/thread_store.rs
@@ -1,88 +1,254 @@
 use std::borrow::Cow;
-use std::path::PathBuf;
+use std::cell::{Ref, RefCell};
+use std::path::{Path, PathBuf};
+use std::rc::Rc;
 use std::sync::Arc;

-use anyhow::{Result, anyhow};
+use anyhow::{Context as _, Result, anyhow};
 use assistant_settings::{AgentProfile, AgentProfileId, AssistantSettings};
 use assistant_tool::{ToolId, ToolSource, ToolWorkingSet};
 use chrono::{DateTime, Utc};
 use collections::HashMap;
 use context_server::manager::ContextServerManager;
 use context_server::{ContextServerFactoryRegistry, ContextServerTool};
+use fs::Fs;
 use futures::FutureExt as _;
 use futures::future::{self, BoxFuture, Shared};
 use gpui::{
-    App, BackgroundExecutor, Context, Entity, Global, ReadGlobal, SharedString, Subscription, Task,
-    prelude::*,
+    App, BackgroundExecutor, Context, Entity, EventEmitter, Global, ReadGlobal, SharedString,
+    Subscription, Task, prelude::*,
 };
 use heed::Database;
 use heed::types::SerdeBincode;
 use language_model::{LanguageModelToolUseId, Role, TokenUsage};
-use project::Project;
-use prompt_store::PromptBuilder;
+use project::{Project, Worktree};
+use prompt_store::{ProjectContext, PromptBuilder, RulesFileContext, WorktreeContext};
 use serde::{Deserialize, Serialize};
 use settings::{Settings as _, SettingsStore};
 use util::ResultExt as _;

 use crate::thread::{
-    DetailedSummaryState, MessageId, ProjectSnapshot, Thread, ThreadEvent, ThreadId,
+    DetailedSummaryState, ExceededWindowError, MessageId, ProjectSnapshot, Thread, ThreadId,
 };

+const RULES_FILE_NAMES: [&'static str; 6] = [
+    ".rules",
+    ".cursorrules",
+    ".windsurfrules",
+    ".clinerules",
+    ".github/copilot-instructions.md",
+    "CLAUDE.md",
+];
+
 pub fn init(cx: &mut App) {
    ThreadsDatabase::init(cx);
 }

+/// A system prompt shared by all threads created by this ThreadStore
+#[derive(Clone, Default)]
+pub struct SharedProjectContext(Rc<RefCell<Option<ProjectContext>>>);
+
+impl SharedProjectContext {
+    pub fn borrow(&self) -> Ref<Option<ProjectContext>> {
+        self.0.borrow()
+    }
+}
+
 pub struct ThreadStore {
    project: Entity<Project>,
-    tools: Arc<ToolWorkingSet>,
+    tools: Entity<ToolWorkingSet>,
    prompt_builder: Arc<PromptBuilder>,
    context_server_manager: Entity<ContextServerManager>,
    context_server_tool_ids: HashMap<Arc<str>, Vec<ToolId>>,
    threads: Vec<SerializedThreadMetadata>,
+    project_context: SharedProjectContext,
    _subscriptions: Vec<Subscription>,
 }

+pub struct RulesLoadingError {
+    pub message: SharedString,
+}
+
+impl EventEmitter<RulesLoadingError> for ThreadStore {}
+
 impl ThreadStore {
-    pub fn new(
+    pub fn load(
        project: Entity<Project>,
-        tools: Arc<ToolWorkingSet>,
+        tools: Entity<ToolWorkingSet>,
        prompt_builder: Arc<PromptBuilder>,
        cx: &mut App,
-    ) -> Result<Entity<Self>> {
-        let this = cx.new(|cx| {
-            let context_server_factory_registry = ContextServerFactoryRegistry::default_global(cx);
-            let context_server_manager = cx.new(|cx| {
-                ContextServerManager::new(context_server_factory_registry, project.clone(), cx)
-            });
-            let settings_subscription =
-                cx.observe_global::<SettingsStore>(move |this: &mut Self, cx| {
-                    this.load_default_profile(cx);
-                });
+    ) -> Task<Entity<Self>> {
+        let thread_store = cx.new(|cx| Self::new(project, tools, prompt_builder, cx));
+        let reload = thread_store.update(cx, |store, cx| store.reload_system_prompt(cx));
+        cx.foreground_executor().spawn(async move {
+            reload.await;
+            thread_store
+        })
+    }

-            let this = Self {
-                project,
-                tools,
-                prompt_builder,
-                context_server_manager,
-                context_server_tool_ids: HashMap::default(),
-                threads: Vec::new(),
-                _subscriptions: vec![settings_subscription],
-            };
-            this.load_default_profile(cx);
-            this.register_context_server_handlers(cx);
-            this.reload(cx).detach_and_log_err(cx);
-
-            this
+    fn new(
+        project: Entity<Project>,
+        tools: Entity<ToolWorkingSet>,
+        prompt_builder: Arc<PromptBuilder>,
+        cx: &mut Context<Self>,
+    ) -> Self {
+        let context_server_factory_registry = ContextServerFactoryRegistry::default_global(cx);
+        let context_server_manager = cx.new(|cx| {
+            ContextServerManager::new(context_server_factory_registry, project.clone(), cx)
        });
+        let settings_subscription =
+            cx.observe_global::<SettingsStore>(move |this: &mut Self, cx| {
+                this.load_default_profile(cx);
+            });
+        let project_subscription = cx.subscribe(&project, Self::handle_project_event);

-        Ok(this)
+        let this = Self {
+            project,
+            tools,
+            prompt_builder,
+            context_server_manager,
+            context_server_tool_ids: HashMap::default(),
+            threads: Vec::new(),
+            project_context: SharedProjectContext::default(),
+            _subscriptions: vec![settings_subscription, project_subscription],
+        };
+        this.load_default_profile(cx);
+        this.register_context_server_handlers(cx);
+        this.reload(cx).detach_and_log_err(cx);
+        this
+    }
+
+    fn handle_project_event(
+        &mut self,
+        _project: Entity<Project>,
+        event: &project::Event,
+        cx: &mut Context<Self>,
+    ) {
+        match event {
+            project::Event::WorktreeAdded(_) | project::Event::WorktreeRemoved(_) => {
+                self.reload_system_prompt(cx).detach();
+            }
+            project::Event::WorktreeUpdatedEntries(_, items) => {
+                if items.iter().any(|(path, _, _)| {
+                    RULES_FILE_NAMES
+                        .iter()
+                        .any(|name| path.as_ref() == Path::new(name))
+                }) {
+                    self.reload_system_prompt(cx).detach();
+                }
+            }
+            _ => {}
+        }
+    }
+
+    pub fn reload_system_prompt(&self, cx: &mut Context<Self>) -> Task<()> {
+        let project = self.project.read(cx);
+        let tasks = project
+            .visible_worktrees(cx)
+            .map(|worktree| {
+                Self::load_worktree_info_for_system_prompt(
+                    project.fs().clone(),
+                    worktree.read(cx),
+                    cx,
+                )
+            })
+            .collect::<Vec<_>>();
+
+        cx.spawn(async move |this, cx| {
+            let results = futures::future::join_all(tasks).await;
+            let worktrees = results
+                .into_iter()
+                .map(|(worktree, rules_error)| {
+                    if let Some(rules_error) = rules_error {
+                        this.update(cx, |_, cx| cx.emit(rules_error)).ok();
+                    }
+                    worktree
+                })
+                .collect::<Vec<_>>();
+            this.update(cx, |this, _cx| {
+                *this.project_context.0.borrow_mut() = Some(ProjectContext::new(worktrees));
+            })
+            .ok();
+        })
+    }
+
+    fn load_worktree_info_for_system_prompt(
+        fs: Arc<dyn Fs>,
+        worktree: &Worktree,
+        cx: &App,
+    ) -> Task<(WorktreeContext, Option<RulesLoadingError>)> {
+        let root_name = worktree.root_name().into();
+        let abs_path = worktree.abs_path();
+
+        let rules_task = Self::load_worktree_rules_file(fs, worktree, cx);
+        let Some(rules_task) = rules_task else {
+            return Task::ready((
+                WorktreeContext {
+                    root_name,
+                    abs_path,
+                    rules_file: None,
+                },
+                None,
+            ));
+        };
+
+        cx.spawn(async move |_| {
+            let (rules_file, rules_file_error) = match rules_task.await {
+                Ok(rules_file) => (Some(rules_file), None),
+                Err(err) => (
+                    None,
+                    Some(RulesLoadingError {
+                        message: format!("{err}").into(),
+                    }),
+                ),
+            };
+            let worktree_info = WorktreeContext {
+                root_name,
+                abs_path,
+                rules_file,
+            };
+            (worktree_info, rules_file_error)
+        })
+    }
+
+    fn load_worktree_rules_file(
+        fs: Arc<dyn Fs>,
+        worktree: &Worktree,
+        cx: &App,
+    ) -> Option<Task<Result<RulesFileContext>>> {
+        let selected_rules_file = RULES_FILE_NAMES
+            .into_iter()
+            .filter_map(|name| {
+                worktree
+                    .entry_for_path(name)
+                    .filter(|entry| entry.is_file())
+                    .map(|entry| (entry.path.clone(), worktree.absolutize(&entry.path)))
+            })
+            .next();
+
+        // Note that Cline supports `.clinerules` being a directory, but that is not currently
+        // supported. This doesn't seem to occur often in GitHub repositories.
+        selected_rules_file.map(|(path_in_worktree, abs_path)| {
+            let fs = fs.clone();
+            cx.background_spawn(async move {
+                let abs_path = abs_path?;
+                let text = fs.load(&abs_path).await.with_context(|| {
+                    format!("Failed to load assistant rules file {:?}", abs_path)
+                })?;
+                anyhow::Ok(RulesFileContext {
+                    path_in_worktree,
+                    abs_path: abs_path.into(),
+                    text: text.trim().to_string(),
+                })
+            })
+        })
    }

    pub fn context_server_manager(&self) -> Entity<ContextServerManager> {
        self.context_server_manager.clone()
    }

-    pub fn tools(&self) -> Arc<ToolWorkingSet> {
+    pub fn tools(&self) -> Entity<ToolWorkingSet> {
        self.tools.clone()
    }

@@ -107,6 +273,7 @@ impl ThreadStore {
                self.project.clone(),
                self.tools.clone(),
                self.prompt_builder.clone(),
+                self.project_context.clone(),
                cx,
            )
        })
@@ -134,21 +301,12 @@ impl ThreadStore {
                        this.project.clone(),
                        this.tools.clone(),
                        this.prompt_builder.clone(),
+                        this.project_context.clone(),
                        cx,
                    )
                })
            })?;

-            let (system_prompt_context, load_error) = thread
-                .update(cx, |thread, cx| thread.load_system_prompt_context(cx))?
-                .await;
-            thread.update(cx, |thread, cx| {
-                thread.set_system_prompt_context(system_prompt_context);
-                if let Some(load_error) = load_error {
-                    cx.emit(ThreadEvent::ShowError(load_error));
-                }
-            })?;
-
            Ok(thread)
        })
    }
@@ -197,52 +355,60 @@ impl ThreadStore {
        })
    }

-    fn load_default_profile(&self, cx: &Context<Self>) {
+    fn load_default_profile(&self, cx: &mut Context<Self>) {
        let assistant_settings = AssistantSettings::get_global(cx);

-        self.load_profile_by_id(&assistant_settings.default_profile, cx);
+        self.load_profile_by_id(assistant_settings.default_profile.clone(), cx);
    }

-    pub fn load_profile_by_id(&self, profile_id: &AgentProfileId, cx: &Context<Self>) {
+    pub fn load_profile_by_id(&self, profile_id: AgentProfileId, cx: &mut Context<Self>) {
        let assistant_settings = AssistantSettings::get_global(cx);

-        if let Some(profile) = assistant_settings.profiles.get(profile_id) {
-            self.load_profile(profile, cx);
+        if let Some(profile) = assistant_settings.profiles.get(&profile_id) {
+            self.load_profile(profile.clone(), cx);
        }
    }

-    pub fn load_profile(&self, profile: &AgentProfile, cx: &Context<Self>) {
-        self.tools.disable_all_tools();
-        self.tools.enable(
-            ToolSource::Native,
-            &profile
-                .tools
-                .iter()
-                .filter_map(|(tool, enabled)| enabled.then(|| tool.clone()))
-                .collect::<Vec<_>>(),
-        );
+    pub fn load_profile(&self, profile: AgentProfile, cx: &mut Context<Self>) {
+        self.tools.update(cx, |tools, cx| {
+            tools.disable_all_tools(cx);
+            tools.enable(
+                ToolSource::Native,
+                &profile
+                    .tools
+                    .iter()
+                    .filter_map(|(tool, enabled)| enabled.then(|| tool.clone()))
+                    .collect::<Vec<_>>(),
+                cx,
+            );
+        });

        if profile.enable_all_context_servers {
            for context_server in self.context_server_manager.read(cx).all_servers() {
-                self.tools.enable_source(
-                    ToolSource::ContextServer {
-                        id: context_server.id().into(),
-                    },
-                    cx,
-                );
+                self.tools.update(cx, |tools, cx| {
+                    tools.enable_source(
+                        ToolSource::ContextServer {
+                            id: context_server.id().into(),
+                        },
+                        cx,
+                    );
+                });
            }
        } else {
            for (context_server_id, preset) in &profile.context_servers {
-                self.tools.enable(
-                    ToolSource::ContextServer {
-                        id: context_server_id.clone().into(),
-                    },
-                    &preset
-                        .tools
-                        .iter()
-                        .filter_map(|(tool, enabled)| enabled.then(|| tool.clone()))
-                        .collect::<Vec<_>>(),
-                )
+                self.tools.update(cx, |tools, cx| {
+                    tools.enable(
+                        ToolSource::ContextServer {
+                            id: context_server_id.clone().into(),
+                        },
+                        &preset
+                            .tools
+                            .iter()
+                            .filter_map(|(tool, enabled)| enabled.then(|| tool.clone()))
+                            .collect::<Vec<_>>(),
+                        cx,
+                    )
+                })
            }
        }
    }
@@ -276,29 +442,36 @@ impl ThreadStore {

                            if protocol.capable(context_server::protocol::ServerCapability::Tools) {
                                if let Some(tools) = protocol.list_tools().await.log_err() {
-                                    let tool_ids = tools
-                                        .tools
-                                        .into_iter()
-                                        .map(|tool| {
-                                            log::info!(
-                                                "registering context server tool: {:?}",
-                                                tool.name
-                                            );
-                                            tool_working_set.insert(Arc::new(
-                                                ContextServerTool::new(
-                                                    context_server_manager.clone(),
-                                                    server.id(),
-                                                    tool,
-                                                ),
-                                            ))
+                                    let tool_ids = tool_working_set
+                                        .update(cx, |tool_working_set, _| {
+                                            tools
+                                                .tools
+                                                .into_iter()
+                                                .map(|tool| {
+                                                    log::info!(
+                                                        "registering context server tool: {:?}",
+                                                        tool.name
+                                                    );
+                                                    tool_working_set.insert(Arc::new(
+                                                        ContextServerTool::new(
+                                                            context_server_manager.clone(),
+                                                            server.id(),
+                                                            tool,
+                                                        ),
+                                                    ))
+                                                })
+                                                .collect::<Vec<_>>()
                                        })
-                                        .collect::<Vec<_>>();
+                                        .log_err();

-                                    this.update(cx, |this, cx| {
-                                        this.context_server_tool_ids.insert(server_id, tool_ids);
-                                        this.load_default_profile(cx);
-                                    })
-                                    .log_err();
+                                    if let Some(tool_ids) = tool_ids {
+                                        this.update(cx, |this, cx| {
+                                            this.context_server_tool_ids
+                                                .insert(server_id, tool_ids);
+                                            this.load_default_profile(cx);
+                                        })
+                                        .log_err();
+                                    }
                                }
                            }
                        }
@@ -308,7 +481,9 @@ impl ThreadStore {
            }
            context_server::manager::Event::ServerStopped { server_id } => {
                if let Some(tool_ids) = self.context_server_tool_ids.remove(server_id) {
-                    tool_working_set.remove(&tool_ids);
+                    tool_working_set.update(cx, |tool_working_set, _| {
+                        tool_working_set.remove(&tool_ids);
+                    });
                    self.load_default_profile(cx);
                }
            }
@@ -335,6 +510,8 @@ pub struct SerializedThread {
    pub cumulative_token_usage: TokenUsage,
    #[serde(default)]
    pub detailed_summary_state: DetailedSummaryState,
+    #[serde(default)]
+    pub exceeded_window_error: Option<ExceededWindowError>,
 }

 impl SerializedThread {
@@ -421,6 +598,7 @@ impl LegacySerializedThread {
            initial_project_snapshot: self.initial_project_snapshot,
            cumulative_token_usage: TokenUsage::default(),
            detailed_summary_state: DetailedSummaryState::default(),
+            exceeded_window_error: None,
        }
    }
 }
@@ -491,7 +669,7 @@ impl ThreadsDatabase {
        let database_future = executor
            .spawn({
                let executor = executor.clone();
-                let database_path = paths::support_dir().join("threads/threads-db.1.mdb");
+                let database_path = paths::data_dir().join("threads/threads-db.1.mdb");
                async move { ThreadsDatabase::new(database_path, executor) }
            })
            .then(|result| future::ready(result.map(Arc::new).map_err(Arc::new)))
--- a/crates/agent/src/tool_compatibility.rs
+++ b/crates/agent/src/tool_compatibility.rs
@@ -0,0 +1,89 @@
+use std::sync::Arc;
+
+use assistant_tool::{Tool, ToolWorkingSet, ToolWorkingSetEvent};
+use collections::HashMap;
+use gpui::{App, Context, Entity, IntoElement, Render, Subscription, Window};
+use language_model::{LanguageModel, LanguageModelToolSchemaFormat};
+use ui::prelude::*;
+
+pub struct IncompatibleToolsState {
+    cache: HashMap<LanguageModelToolSchemaFormat, Vec<Arc<dyn Tool>>>,
+    tool_working_set: Entity<ToolWorkingSet>,
+    _tool_working_set_subscription: Subscription,
+}
+
+impl IncompatibleToolsState {
+    pub fn new(tool_working_set: Entity<ToolWorkingSet>, cx: &mut Context<Self>) -> Self {
+        let _tool_working_set_subscription =
+            cx.subscribe(&tool_working_set, |this, _, event, _| match event {
+                ToolWorkingSetEvent::EnabledToolsChanged => {
+                    this.cache.clear();
+                }
+            });
+
+        Self {
+            cache: HashMap::default(),
+            tool_working_set,
+            _tool_working_set_subscription,
+        }
+    }
+
+    pub fn incompatible_tools(
+        &mut self,
+        model: &Arc<dyn LanguageModel>,
+        cx: &App,
+    ) -> &[Arc<dyn Tool>] {
+        self.cache
+            .entry(model.tool_input_format())
+            .or_insert_with(|| {
+                self.tool_working_set
+                    .read(cx)
+                    .enabled_tools(cx)
+                    .iter()
+                    .filter(|tool| tool.input_schema(model.tool_input_format()).is_err())
+                    .cloned()
+                    .collect()
+            })
+    }
+}
+
+pub struct IncompatibleToolsTooltip {
+    pub incompatible_tools: Vec<Arc<dyn Tool>>,
+}
+
+impl Render for IncompatibleToolsTooltip {
+    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        ui::tooltip_container(window, cx, |container, _, cx| {
+            container
+                .w_72()
+                .child(Label::new("Incompatible Tools").size(LabelSize::Small))
+                .child(
+                    Label::new(
+                        "This model is incompatible with the following tools from your MCPs:",
+                    )
+                    .size(LabelSize::Small)
+                    .color(Color::Muted),
+                )
+                .child(
+                    v_flex()
+                        .my_1p5()
+                        .py_0p5()
+                        .border_b_1()
+                        .border_color(cx.theme().colors().border_variant)
+                        .children(
+                            self.incompatible_tools
+                                .iter()
+                                .map(|tool| Label::new(tool.name()).size(LabelSize::Small).buffer_font(cx)),
+                        ),
+                )
+                .child(Label::new("What To Do Instead").size(LabelSize::Small))
+                .child(
+                    Label::new(
+                        "Every other tool continues to work with this model, but to specifically use those, switch to another model.",
+                    )
+                    .size(LabelSize::Small)
+                    .color(Color::Muted),
+                )
+        })
+    }
+}
--- a/crates/agent/src/tool_use.rs
+++ b/crates/agent/src/tool_use.rs
@@ -5,7 +5,7 @@ use assistant_tool::{Tool, ToolWorkingSet};
 use collections::HashMap;
 use futures::FutureExt as _;
 use futures::future::Shared;
-use gpui::{App, SharedString, Task};
+use gpui::{App, Entity, SharedString, Task};
 use language_model::{
    LanguageModelRegistry, LanguageModelRequestMessage, LanguageModelToolResult,
    LanguageModelToolUse, LanguageModelToolUseId, MessageContent, Role,
@@ -49,7 +49,7 @@ impl ToolUseStatus {
 }

 pub struct ToolUseState {
-    tools: Arc<ToolWorkingSet>,
+    tools: Entity<ToolWorkingSet>,
    tool_uses_by_assistant_message: HashMap<MessageId, Vec<LanguageModelToolUse>>,
    tool_uses_by_user_message: HashMap<MessageId, Vec<LanguageModelToolUseId>>,
    tool_results: HashMap<LanguageModelToolUseId, LanguageModelToolResult>,
@@ -59,7 +59,7 @@ pub struct ToolUseState {
 pub const USING_TOOL_MARKER: &str = "<using_tool>";

 impl ToolUseState {
-    pub fn new(tools: Arc<ToolWorkingSet>) -> Self {
+    pub fn new(tools: Entity<ToolWorkingSet>) -> Self {
        Self {
            tools,
            tool_uses_by_assistant_message: HashMap::default(),
@@ -73,7 +73,7 @@ impl ToolUseState {
    ///
    /// Accepts a function to filter the tools that should be used to populate the state.
    pub fn from_serialized_messages(
-        tools: Arc<ToolWorkingSet>,
+        tools: Entity<ToolWorkingSet>,
        messages: &[SerializedMessage],
        mut filter_by_tool_name: impl FnMut(&str) -> bool,
    ) -> Self {
@@ -199,12 +199,12 @@ impl ToolUseState {
                }
            })();

-            let (icon, needs_confirmation) = if let Some(tool) = self.tools.tool(&tool_use.name, cx)
-            {
-                (tool.icon(), tool.needs_confirmation())
-            } else {
-                (IconName::Cog, false)
-            };
+            let (icon, needs_confirmation) =
+                if let Some(tool) = self.tools.read(cx).tool(&tool_use.name, cx) {
+                    (tool.icon(), tool.needs_confirmation(&tool_use.input, cx))
+                } else {
+                    (IconName::Cog, false)
+                };

            tool_uses.push(ToolUse {
                id: tool_use.id.clone(),
@@ -226,7 +226,7 @@ impl ToolUseState {
        input: &serde_json::Value,
        cx: &App,
    ) -> SharedString {
-        if let Some(tool) = self.tools.tool(tool_name, cx) {
+        if let Some(tool) = self.tools.read(cx).tool(tool_name, cx) {
            tool.ui_text(input).into()
        } else {
            format!("Unknown tool {tool_name:?}").into()
@@ -334,6 +334,8 @@ impl ToolUseState {
        output: Result<String>,
        cx: &App,
    ) -> Option<PendingToolUse> {
+        telemetry::event!("Agent Tool Finished", tool_name, success = output.is_ok());
+
        match output {
            Ok(tool_result) => {
                let model_registry = LanguageModelRegistry::read_global(cx);
--- a/crates/agent/src/ui.rs
+++ b/crates/agent/src/ui.rs
@@ -1,5 +1,7 @@
 mod agent_notification;
 mod context_pill;
+mod user_spending;

 pub use agent_notification::*;
 pub use context_pill::*;
+// pub use user_spending::*;
--- a/crates/agent/src/ui/context_pill.rs
+++ b/crates/agent/src/ui/context_pill.rs
@@ -280,9 +280,10 @@ impl AddedContext {
            }

            AssistantContext::Directory(directory_context) => {
-                // TODO: handle worktree disambiguation. Maybe by storing an `Arc<dyn File>` to also
-                // handle renames?
-                let full_path = &directory_context.project_path.path;
+                let full_path = directory_context
+                    .worktree
+                    .read(cx)
+                    .full_path(&directory_context.path);
                let full_path_string: SharedString =
                    full_path.to_string_lossy().into_owned().into();
                let name = full_path
--- a/crates/agent/src/ui/user_spending.rs
+++ b/crates/agent/src/ui/user_spending.rs
@@ -0,0 +1,186 @@
+use gpui::{Entity, Render};
+use ui::{ProgressBar, prelude::*};
+
+#[derive(RegisterComponent)]
+pub struct UserSpending {
+    free_tier_current: u32,
+    free_tier_cap: u32,
+    over_tier_current: u32,
+    over_tier_cap: u32,
+    free_tier_progress: Entity<ProgressBar>,
+    over_tier_progress: Entity<ProgressBar>,
+}
+
+impl UserSpending {
+    pub fn new(
+        free_tier_current: u32,
+        free_tier_cap: u32,
+        over_tier_current: u32,
+        over_tier_cap: u32,
+        cx: &mut App,
+    ) -> Self {
+        let free_tier_capped = free_tier_current == free_tier_cap;
+        let free_tier_near_capped =
+            free_tier_current as f32 / 100.0 >= free_tier_cap as f32 / 100.0 * 0.9;
+        let over_tier_capped = over_tier_current == over_tier_cap;
+        let over_tier_near_capped =
+            over_tier_current as f32 / 100.0 >= over_tier_cap as f32 / 100.0 * 0.9;
+
+        let free_tier_progress = cx.new(|cx| {
+            ProgressBar::new(
+                "free_tier",
+                free_tier_current as f32,
+                free_tier_cap as f32,
+                cx,
+            )
+        });
+        let over_tier_progress = cx.new(|cx| {
+            ProgressBar::new(
+                "over_tier",
+                over_tier_current as f32,
+                over_tier_cap as f32,
+                cx,
+            )
+        });
+
+        if free_tier_capped {
+            free_tier_progress.update(cx, |progress_bar, cx| {
+                progress_bar.fg_color(cx.theme().status().error);
+            });
+        } else if free_tier_near_capped {
+            free_tier_progress.update(cx, |progress_bar, cx| {
+                progress_bar.fg_color(cx.theme().status().warning);
+            });
+        }
+
+        if over_tier_capped {
+            over_tier_progress.update(cx, |progress_bar, cx| {
+                progress_bar.fg_color(cx.theme().status().error);
+            });
+        } else if over_tier_near_capped {
+            over_tier_progress.update(cx, |progress_bar, cx| {
+                progress_bar.fg_color(cx.theme().status().warning);
+            });
+        }
+
+        Self {
+            free_tier_current,
+            free_tier_cap,
+            over_tier_current,
+            over_tier_cap,
+            free_tier_progress,
+            over_tier_progress,
+        }
+    }
+}
+
+impl Render for UserSpending {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        let formatted_free_tier = format!(
+            "${} / ${}",
+            self.free_tier_current as f32 / 100.0,
+            self.free_tier_cap as f32 / 100.0
+        );
+        let formatted_over_tier = format!(
+            "${} / ${}",
+            self.over_tier_current as f32 / 100.0,
+            self.over_tier_cap as f32 / 100.0
+        );
+
+        v_group()
+            .elevation_2(cx)
+            .py_1p5()
+            .px_2p5()
+            .w(px(360.))
+            .child(
+                v_flex()
+                    .child(
+                        v_flex()
+                            .p_1p5()
+                            .gap_0p5()
+                            .child(
+                                h_flex()
+                                    .justify_between()
+                                    .child(Label::new("Free Tier Usage").size(LabelSize::Small))
+                                    .child(
+                                        Label::new(formatted_free_tier)
+                                            .size(LabelSize::Small)
+                                            .color(Color::Muted),
+                                    ),
+                            )
+                            .child(self.free_tier_progress.clone()),
+                    )
+                    .child(
+                        v_flex()
+                            .p_1p5()
+                            .gap_0p5()
+                            .child(
+                                h_flex()
+                                    .justify_between()
+                                    .child(Label::new("Current Spending").size(LabelSize::Small))
+                                    .child(
+                                        Label::new(formatted_over_tier)
+                                            .size(LabelSize::Small)
+                                            .color(Color::Muted),
+                                    ),
+                            )
+                            .child(self.over_tier_progress.clone()),
+                    ),
+            )
+    }
+}
+
+impl Component for UserSpending {
+    fn scope() -> ComponentScope {
+        ComponentScope::None
+    }
+
+    fn preview(_window: &mut Window, cx: &mut App) -> Option<AnyElement> {
+        let new_user = cx.new(|cx| UserSpending::new(0, 2000, 0, 2000, cx));
+        let free_capped = cx.new(|cx| UserSpending::new(2000, 2000, 0, 2000, cx));
+        let free_near_capped = cx.new(|cx| UserSpending::new(1800, 2000, 0, 2000, cx));
+        let over_near_capped = cx.new(|cx| UserSpending::new(2000, 2000, 1800, 2000, cx));
+        let over_capped = cx.new(|cx| UserSpending::new(1000, 2000, 2000, 2000, cx));
+
+        Some(
+            v_flex()
+                .gap_6()
+                .p_4()
+                .children(vec![example_group(vec![
+                    single_example(
+                        "New User",
+                        div().size_full().child(new_user.clone()).into_any_element(),
+                    ),
+                    single_example(
+                        "Free Tier Capped",
+                        div()
+                            .size_full()
+                            .child(free_capped.clone())
+                            .into_any_element(),
+                    ),
+                    single_example(
+                        "Free Tier Near Capped",
+                        div()
+                            .size_full()
+                            .child(free_near_capped.clone())
+                            .into_any_element(),
+                    ),
+                    single_example(
+                        "Over Tier Near Capped",
+                        div()
+                            .size_full()
+                            .child(over_near_capped.clone())
+                            .into_any_element(),
+                    ),
+                    single_example(
+                        "Over Tier Capped",
+                        div()
+                            .size_full()
+                            .child(over_capped.clone())
+                            .into_any_element(),
+                    ),
+                ])])
+                .into_any_element(),
+        )
+    }
+}
--- a/crates/agent_eval/build.rs
+++ b/crates/agent_eval/build.rs
@@ -1,52 +0,0 @@
-// Copied from `crates/zed/build.rs`, with removal of code for including the zed icon on windows.
-
-use std::process::Command;
-
-fn main() {
-    if cfg!(target_os = "macos") {
-        println!("cargo:rustc-env=MACOSX_DEPLOYMENT_TARGET=10.15.7");
-
-        // Weakly link ReplayKit to ensure Zed can be used on macOS 10.15+.
-        println!("cargo:rustc-link-arg=-Wl,-weak_framework,ReplayKit");
-
-        // Seems to be required to enable Swift concurrency
-        println!("cargo:rustc-link-arg=-Wl,-rpath,/usr/lib/swift");
-
-        // Register exported Objective-C selectors, protocols, etc
-        println!("cargo:rustc-link-arg=-Wl,-ObjC");
-    }
-
-    // Populate git sha environment variable if git is available
-    println!("cargo:rerun-if-changed=../../.git/logs/HEAD");
-    println!(
-        "cargo:rustc-env=TARGET={}",
-        std::env::var("TARGET").unwrap()
-    );
-    if let Ok(output) = Command::new("git").args(["rev-parse", "HEAD"]).output() {
-        if output.status.success() {
-            let git_sha = String::from_utf8_lossy(&output.stdout);
-            let git_sha = git_sha.trim();
-
-            println!("cargo:rustc-env=ZED_COMMIT_SHA={git_sha}");
-
-            if let Ok(build_profile) = std::env::var("PROFILE") {
-                if build_profile == "release" {
-                    // This is currently the best way to make `cargo build ...`'s build script
-                    // to print something to stdout without extra verbosity.
-                    println!(
-                        "cargo:warning=Info: using '{git_sha}' hash for ZED_COMMIT_SHA env var"
-                    );
-                }
-            }
-        }
-    }
-
-    #[cfg(target_os = "windows")]
-    {
-        #[cfg(target_env = "msvc")]
-        {
-            // todo(windows): This is to avoid stack overflow. Remove it when solved.
-            println!("cargo:rustc-link-arg=/stack:{}", 8 * 1024 * 1024);
-        }
-    }
-}
--- a/crates/agent_eval/src/eval.rs
+++ b/crates/agent_eval/src/eval.rs
@@ -1,384 +0,0 @@
-use crate::git_commands::{run_git, setup_temp_repo};
-use crate::headless_assistant::{HeadlessAppState, HeadlessAssistant};
-use crate::{get_exercise_language, get_exercise_name};
-use agent::RequestKind;
-use anyhow::{Result, anyhow};
-use collections::HashMap;
-use gpui::{App, Task};
-use language_model::{LanguageModel, TokenUsage};
-use serde::{Deserialize, Serialize};
-use std::{
-    fs,
-    io::Write,
-    path::{Path, PathBuf},
-    sync::Arc,
-    time::{Duration, SystemTime},
-};
-
-#[derive(Debug, Serialize, Deserialize, Clone)]
-pub struct EvalResult {
-    pub exercise_name: String,
-    pub diff: String,
-    pub assistant_response: String,
-    pub elapsed_time_ms: u128,
-    pub timestamp: u128,
-    // Token usage fields
-    pub input_tokens: usize,
-    pub output_tokens: usize,
-    pub total_tokens: usize,
-    pub tool_use_counts: usize,
-}
-
-pub struct EvalOutput {
-    pub diff: String,
-    pub last_message: String,
-    pub elapsed_time: Duration,
-    pub assistant_response_count: usize,
-    pub tool_use_counts: HashMap<Arc<str>, u32>,
-    pub token_usage: TokenUsage,
-}
-
-#[derive(Deserialize)]
-pub struct EvalSetup {
-    pub url: String,
-    pub base_sha: String,
-}
-
-pub struct Eval {
-    pub repo_path: PathBuf,
-    pub eval_setup: EvalSetup,
-    pub user_prompt: String,
-}
-
-impl Eval {
-    // Keep this method for potential future use, but mark it as intentionally unused
-    #[allow(dead_code)]
-    pub async fn load(_name: String, path: PathBuf, repos_dir: &Path) -> Result<Self> {
-        let prompt_path = path.join("prompt.txt");
-        let user_prompt = smol::unblock(|| std::fs::read_to_string(prompt_path)).await?;
-        let setup_path = path.join("setup.json");
-        let setup_contents = smol::unblock(|| std::fs::read_to_string(setup_path)).await?;
-        let eval_setup = serde_json_lenient::from_str_lenient::<EvalSetup>(&setup_contents)?;
-
-        // Move this internal function inside the load method since it's only used here
-        fn repo_dir_name(url: &str) -> String {
-            url.trim_start_matches("https://")
-                .replace(|c: char| !c.is_alphanumeric(), "_")
-        }
-
-        let repo_path = repos_dir.join(repo_dir_name(&eval_setup.url));
-
-        Ok(Eval {
-            repo_path,
-            eval_setup,
-            user_prompt,
-        })
-    }
-
-    pub fn run(
-        self,
-        app_state: Arc<HeadlessAppState>,
-        model: Arc<dyn LanguageModel>,
-        cx: &mut App,
-    ) -> Task<Result<EvalOutput>> {
-        cx.spawn(async move |cx| {
-            run_git(&self.repo_path, &["checkout", &self.eval_setup.base_sha]).await?;
-
-            let (assistant, done_rx) =
-                cx.update(|cx| HeadlessAssistant::new(app_state.clone(), cx))??;
-
-            let _worktree = assistant
-                .update(cx, |assistant, cx| {
-                    assistant.project.update(cx, |project, cx| {
-                        project.create_worktree(&self.repo_path, true, cx)
-                    })
-                })?
-                .await?;
-
-            let start_time = std::time::SystemTime::now();
-
-            let (system_prompt_context, load_error) = cx
-                .update(|cx| {
-                    assistant
-                        .read(cx)
-                        .thread
-                        .read(cx)
-                        .load_system_prompt_context(cx)
-                })?
-                .await;
-
-            if let Some(load_error) = load_error {
-                return Err(anyhow!("{:?}", load_error));
-            };
-
-            assistant.update(cx, |assistant, cx| {
-                assistant.thread.update(cx, |thread, cx| {
-                    let context = vec![];
-                    thread.insert_user_message(self.user_prompt.clone(), context, None, cx);
-                    thread.set_system_prompt_context(system_prompt_context);
-                    thread.send_to_model(model, RequestKind::Chat, cx);
-                });
-            })?;
-
-            done_rx.recv().await??;
-
-            // Add this section to check untracked files
-            println!("Checking for untracked files:");
-            let untracked = run_git(
-                &self.repo_path,
-                &["ls-files", "--others", "--exclude-standard"],
-            )
-            .await?;
-            if untracked.is_empty() {
-                println!("No untracked files found");
-            } else {
-                // Add all files to git so they appear in the diff
-                println!("Adding untracked files to git");
-                run_git(&self.repo_path, &["add", "."]).await?;
-            }
-
-            // get git status
-            let _status = run_git(&self.repo_path, &["status", "--short"]).await?;
-
-            let elapsed_time = start_time.elapsed()?;
-
-            // Get diff of staged changes (the files we just added)
-            let staged_diff = run_git(&self.repo_path, &["diff", "--staged"]).await?;
-
-            // Get diff of unstaged changes
-            let unstaged_diff = run_git(&self.repo_path, &["diff"]).await?;
-
-            // Combine both diffs
-            let diff = if unstaged_diff.is_empty() {
-                staged_diff
-            } else if staged_diff.is_empty() {
-                unstaged_diff
-            } else {
-                format!(
-                    "# Staged changes\n{}\n\n# Unstaged changes\n{}",
-                    staged_diff, unstaged_diff
-                )
-            };
-
-            assistant.update(cx, |assistant, cx| {
-                let thread = assistant.thread.read(cx);
-                let last_message = thread.messages().last().unwrap();
-                if last_message.role != language_model::Role::Assistant {
-                    return Err(anyhow!("Last message is not from assistant"));
-                }
-                let assistant_response_count = thread
-                    .messages()
-                    .filter(|message| message.role == language_model::Role::Assistant)
-                    .count();
-                Ok(EvalOutput {
-                    diff,
-                    last_message: last_message.to_string(),
-                    elapsed_time,
-                    assistant_response_count,
-                    tool_use_counts: assistant.tool_use_counts.clone(),
-                    token_usage: thread.cumulative_token_usage(),
-                })
-            })?
-        })
-    }
-}
-
-impl EvalOutput {
-    // Keep this method for potential future use, but mark it as intentionally unused
-    #[allow(dead_code)]
-    pub fn save_to_directory(&self, output_dir: &Path, eval_output_value: String) -> Result<()> {
-        // Create the output directory if it doesn't exist
-        fs::create_dir_all(&output_dir)?;
-
-        // Save the diff to a file
-        let diff_path = output_dir.join("diff.patch");
-        let mut diff_file = fs::File::create(&diff_path)?;
-        diff_file.write_all(self.diff.as_bytes())?;
-
-        // Save the last message to a file
-        let message_path = output_dir.join("assistant_response.txt");
-        let mut message_file = fs::File::create(&message_path)?;
-        message_file.write_all(self.last_message.as_bytes())?;
-
-        // Current metrics for this run
-        let current_metrics = serde_json::json!({
-            "elapsed_time_ms": self.elapsed_time.as_millis(),
-            "assistant_response_count": self.assistant_response_count,
-            "tool_use_counts": self.tool_use_counts,
-            "token_usage": self.token_usage,
-            "eval_output_value": eval_output_value,
-        });
-
-        // Get current timestamp in milliseconds
-        let timestamp = std::time::SystemTime::now()
-            .duration_since(std::time::UNIX_EPOCH)?
-            .as_millis()
-            .to_string();
-
-        // Path to metrics file
-        let metrics_path = output_dir.join("metrics.json");
-
-        // Load existing metrics if the file exists, or create a new object
-        let mut historical_metrics = if metrics_path.exists() {
-            let metrics_content = fs::read_to_string(&metrics_path)?;
-            serde_json::from_str::<serde_json::Value>(&metrics_content)
-                .unwrap_or_else(|_| serde_json::json!({}))
-        } else {
-            serde_json::json!({})
-        };
-
-        // Add new run with timestamp as key
-        if let serde_json::Value::Object(ref mut map) = historical_metrics {
-            map.insert(timestamp, current_metrics);
-        }
-
-        // Write updated metrics back to file
-        let metrics_json = serde_json::to_string_pretty(&historical_metrics)?;
-        let mut metrics_file = fs::File::create(&metrics_path)?;
-        metrics_file.write_all(metrics_json.as_bytes())?;
-
-        Ok(())
-    }
-}
-
-pub async fn read_instructions(exercise_path: &Path) -> Result<String> {
-    let instructions_path = exercise_path.join(".docs").join("instructions.md");
-    println!("Reading instructions from: {}", instructions_path.display());
-    let instructions = smol::unblock(move || std::fs::read_to_string(&instructions_path)).await?;
-    Ok(instructions)
-}
-
-pub async fn save_eval_results(exercise_path: &Path, results: Vec<EvalResult>) -> Result<()> {
-    let eval_dir = exercise_path.join("evaluation");
-    fs::create_dir_all(&eval_dir)?;
-
-    let eval_file = eval_dir.join("evals.json");
-
-    println!("Saving evaluation results to: {}", eval_file.display());
-    println!(
-        "Results to save: {} evaluations for exercise path: {}",
-        results.len(),
-        exercise_path.display()
-    );
-
-    // Check file existence before reading/writing
-    if eval_file.exists() {
-        println!("Existing evals.json file found, will update it");
-    } else {
-        println!("No existing evals.json file found, will create new one");
-    }
-
-    // Structure to organize evaluations by test name and timestamp
-    let mut eval_data: serde_json::Value = if eval_file.exists() {
-        let content = fs::read_to_string(&eval_file)?;
-        serde_json::from_str(&content).unwrap_or_else(|_| serde_json::json!({}))
-    } else {
-        serde_json::json!({})
-    };
-
-    // Get current timestamp for this batch of results
-    let timestamp = SystemTime::now()
-        .duration_since(SystemTime::UNIX_EPOCH)?
-        .as_millis()
-        .to_string();
-
-    // Group the new results by test name (exercise name)
-    for result in results {
-        let exercise_name = &result.exercise_name;
-
-        println!("Adding result: exercise={}", exercise_name);
-
-        // Ensure the exercise entry exists
-        if eval_data.get(exercise_name).is_none() {
-            eval_data[exercise_name] = serde_json::json!({});
-        }
-
-        // Ensure the timestamp entry exists as an object
-        if eval_data[exercise_name].get(&timestamp).is_none() {
-            eval_data[exercise_name][&timestamp] = serde_json::json!({});
-        }
-
-        // Add this result under the timestamp with template name as key
-        eval_data[exercise_name][&timestamp] = serde_json::to_value(&result)?;
-    }
-
-    // Write back to file with pretty formatting
-    let json_content = serde_json::to_string_pretty(&eval_data)?;
-    match fs::write(&eval_file, json_content) {
-        Ok(_) => println!("✓ Successfully saved results to {}", eval_file.display()),
-        Err(e) => println!("✗ Failed to write results file: {}", e),
-    }
-
-    Ok(())
-}
-
-pub async fn run_exercise_eval(
-    exercise_path: PathBuf,
-    model: Arc<dyn LanguageModel>,
-    app_state: Arc<HeadlessAppState>,
-    base_sha: String,
-    _framework_path: PathBuf,
-    cx: gpui::AsyncApp,
-) -> Result<EvalResult> {
-    let exercise_name = get_exercise_name(&exercise_path);
-    let language = get_exercise_language(&exercise_path)?;
-    let mut instructions = read_instructions(&exercise_path).await?;
-    instructions.push_str(&format!(
-        "\n\nWhen writing the code for this prompt, use {} to achieve the goal.",
-        language
-    ));
-
-    println!("Running evaluation for exercise: {}", exercise_name);
-
-    // Create temporary directory with exercise files
-    let temp_dir = setup_temp_repo(&exercise_path, &base_sha).await?;
-    let temp_path = temp_dir.path().to_path_buf();
-
-    let local_commit_sha = run_git(&temp_path, &["rev-parse", "HEAD"]).await?;
-
-    let start_time = SystemTime::now();
-
-    // Create a basic eval struct to work with the existing system
-    let eval = Eval {
-        repo_path: temp_path.clone(),
-        eval_setup: EvalSetup {
-            url: format!("file://{}", temp_path.display()),
-            base_sha: local_commit_sha, // Use the local commit SHA instead of the framework base SHA
-        },
-        user_prompt: instructions.clone(),
-    };
-
-    // Run the evaluation
-    let eval_output = cx
-        .update(|cx| eval.run(app_state.clone(), model.clone(), cx))?
-        .await?;
-
-    // Get diff from git
-    let diff = eval_output.diff.clone();
-
-    let elapsed_time = start_time.elapsed()?;
-
-    // Calculate total tokens as the sum of input and output tokens
-    let input_tokens = eval_output.token_usage.input_tokens;
-    let output_tokens = eval_output.token_usage.output_tokens;
-    let tool_use_counts = eval_output.tool_use_counts.values().sum::<u32>();
-    let total_tokens = input_tokens + output_tokens;
-
-    // Save results to evaluation directory
-    let result = EvalResult {
-        exercise_name: exercise_name.clone(),
-        diff,
-        assistant_response: eval_output.last_message.clone(),
-        elapsed_time_ms: elapsed_time.as_millis(),
-        timestamp: SystemTime::now()
-            .duration_since(SystemTime::UNIX_EPOCH)?
-            .as_millis(),
-        // Convert u32 token counts to usize
-        input_tokens: input_tokens.try_into().unwrap(),
-        output_tokens: output_tokens.try_into().unwrap(),
-        total_tokens: total_tokens.try_into().unwrap(),
-        tool_use_counts: tool_use_counts.try_into().unwrap(),
-    };
-
-    Ok(result)
-}
--- a/crates/agent_eval/src/get_exercise.rs
+++ b/crates/agent_eval/src/get_exercise.rs
@@ -1,149 +0,0 @@
-use anyhow::{Result, anyhow};
-use std::{
-    fs,
-    path::{Path, PathBuf},
-};
-
-pub fn get_exercise_name(exercise_path: &Path) -> String {
-    exercise_path
-        .file_name()
-        .unwrap_or_default()
-        .to_string_lossy()
-        .to_string()
-}
-
-pub fn get_exercise_language(exercise_path: &Path) -> Result<String> {
-    // Extract the language from path (data/python/exercises/... => python)
-    let parts: Vec<_> = exercise_path.components().collect();
-
-    for (i, part) in parts.iter().enumerate() {
-        if i > 0 && part.as_os_str() == "eval_code" {
-            if i + 1 < parts.len() {
-                let language = parts[i + 1].as_os_str().to_string_lossy().to_string();
-                return Ok(language);
-            }
-        }
-    }
-
-    Err(anyhow!(
-        "Could not determine language from path: {:?}",
-        exercise_path
-    ))
-}
-
-pub fn find_exercises(
-    framework_path: &Path,
-    languages: &[&str],
-    max_per_language: Option<usize>,
-) -> Result<Vec<PathBuf>> {
-    let mut all_exercises = Vec::new();
-
-    println!("Searching for exercises in languages: {:?}", languages);
-
-    for language in languages {
-        let language_dir = framework_path
-            .join("eval_code")
-            .join(language)
-            .join("exercises")
-            .join("practice");
-
-        println!("Checking language directory: {:?}", language_dir);
-        if !language_dir.exists() {
-            println!("Warning: Language directory not found: {:?}", language_dir);
-            continue;
-        }
-
-        let mut exercises = Vec::new();
-        match fs::read_dir(&language_dir) {
-            Ok(entries) => {
-                for entry_result in entries {
-                    match entry_result {
-                        Ok(entry) => {
-                            let path = entry.path();
-
-                            if path.is_dir() {
-                                // Special handling for "internal" directory
-                                if *language == "internal" {
-                                    // Check for repo_info.json to validate it's an internal exercise
-                                    let repo_info_path = path.join(".meta").join("repo_info.json");
-                                    let instructions_path =
-                                        path.join(".docs").join("instructions.md");
-
-                                    if repo_info_path.exists() && instructions_path.exists() {
-                                        exercises.push(path);
-                                    }
-                                } else {
-                                    // Map the language to the file extension - original code
-                                    let language_extension = match *language {
-                                        "python" => "py",
-                                        "go" => "go",
-                                        "rust" => "rs",
-                                        "typescript" => "ts",
-                                        "javascript" => "js",
-                                        "ruby" => "rb",
-                                        "php" => "php",
-                                        "bash" => "sh",
-                                        "multi" => "diff",
-                                        _ => continue, // Skip unsupported languages
-                                    };
-
-                                    // Check if this is a valid exercise with instructions and example
-                                    let instructions_path =
-                                        path.join(".docs").join("instructions.md");
-                                    let has_instructions = instructions_path.exists();
-                                    let example_path = path
-                                        .join(".meta")
-                                        .join(format!("example.{}", language_extension));
-                                    let has_example = example_path.exists();
-
-                                    if has_instructions && has_example {
-                                        exercises.push(path);
-                                    }
-                                }
-                            }
-                        }
-                        Err(err) => println!("Error reading directory entry: {}", err),
-                    }
-                }
-            }
-            Err(err) => println!(
-                "Error reading directory {}: {}",
-                language_dir.display(),
-                err
-            ),
-        }
-
-        // Sort exercises by name for consistent selection
-        exercises.sort_by(|a, b| {
-            let a_name = a.file_name().unwrap_or_default().to_string_lossy();
-            let b_name = b.file_name().unwrap_or_default().to_string_lossy();
-            a_name.cmp(&b_name)
-        });
-
-        // Apply the limit if specified
-        if let Some(limit) = max_per_language {
-            if exercises.len() > limit {
-                println!(
-                    "Limiting {} exercises to {} for language {}",
-                    exercises.len(),
-                    limit,
-                    language
-                );
-                exercises.truncate(limit);
-            }
-        }
-
-        println!(
-            "Found {} exercises for language {}: {:?}",
-            exercises.len(),
-            language,
-            exercises
-                .iter()
-                .map(|p| p.file_name().unwrap_or_default().to_string_lossy())
-                .collect::<Vec<_>>()
-        );
-        all_exercises.extend(exercises);
-    }
-
-    Ok(all_exercises)
-}
--- a/crates/agent_eval/src/git_commands.rs
+++ b/crates/agent_eval/src/git_commands.rs
@@ -1,125 +0,0 @@
-use anyhow::{Result, anyhow};
-use serde::Deserialize;
-use std::{fs, path::Path};
-use tempfile::TempDir;
-use util::command::new_smol_command;
-use walkdir::WalkDir;
-
-#[derive(Debug, Deserialize)]
-pub struct SetupConfig {
-    #[serde(rename = "base.sha")]
-    pub base_sha: String,
-}
-
-#[derive(Debug, Deserialize)]
-pub struct RepoInfo {
-    pub remote_url: String,
-    pub head_sha: String,
-}
-
-pub async fn run_git(repo_path: &Path, args: &[&str]) -> Result<String> {
-    let output = new_smol_command("git")
-        .current_dir(repo_path)
-        .args(args)
-        .output()
-        .await?;
-
-    if output.status.success() {
-        Ok(String::from_utf8(output.stdout)?.trim().to_string())
-    } else {
-        Err(anyhow!(
-            "Git command failed: {} with status: {}",
-            args.join(" "),
-            output.status
-        ))
-    }
-}
-
-pub async fn read_base_sha(framework_path: &Path) -> Result<String> {
-    let setup_path = framework_path.join("setup.json");
-    let setup_content = smol::unblock(move || std::fs::read_to_string(&setup_path)).await?;
-    let setup_config: SetupConfig = serde_json_lenient::from_str_lenient(&setup_content)?;
-    Ok(setup_config.base_sha)
-}
-
-pub async fn read_repo_info(exercise_path: &Path) -> Result<RepoInfo> {
-    let repo_info_path = exercise_path.join(".meta").join("repo_info.json");
-    println!("Reading repo info from: {}", repo_info_path.display());
-    let repo_info_content = smol::unblock(move || std::fs::read_to_string(&repo_info_path)).await?;
-    let repo_info: RepoInfo = serde_json_lenient::from_str_lenient(&repo_info_content)?;
-
-    // Remove any quotes from the strings
-    let remote_url = repo_info.remote_url.trim_matches('"').to_string();
-    let head_sha = repo_info.head_sha.trim_matches('"').to_string();
-
-    Ok(RepoInfo {
-        remote_url,
-        head_sha,
-    })
-}
-
-pub async fn setup_temp_repo(exercise_path: &Path, _base_sha: &str) -> Result<TempDir> {
-    let temp_dir = TempDir::new()?;
-
-    // Check if this is an internal exercise by looking for repo_info.json
-    let repo_info_path = exercise_path.join(".meta").join("repo_info.json");
-    if repo_info_path.exists() {
-        // This is an internal exercise, handle it differently
-        let repo_info = read_repo_info(exercise_path).await?;
-
-        // Clone the repository to the temp directory
-        let url = repo_info.remote_url;
-        let clone_path = temp_dir.path();
-        println!(
-            "Cloning repository from {} to {}",
-            url,
-            clone_path.display()
-        );
-        run_git(
-            &std::env::current_dir()?,
-            &["clone", &url, &clone_path.to_string_lossy()],
-        )
-        .await?;
-
-        // Checkout the specified commit
-        println!("Checking out commit: {}", repo_info.head_sha);
-        run_git(temp_dir.path(), &["checkout", &repo_info.head_sha]).await?;
-
-        println!("Successfully set up internal repository");
-    } else {
-        // Original code for regular exercises
-        // Copy the exercise files to the temp directory, excluding .docs and .meta
-        for entry in WalkDir::new(exercise_path).min_depth(0).max_depth(10) {
-            let entry = entry?;
-            let source_path = entry.path();
-
-            // Skip .docs and .meta directories completely
-            if source_path.starts_with(exercise_path.join(".docs"))
-                || source_path.starts_with(exercise_path.join(".meta"))
-            {
-                continue;
-            }
-
-            if source_path.is_file() {
-                let relative_path = source_path.strip_prefix(exercise_path)?;
-                let dest_path = temp_dir.path().join(relative_path);
-
-                // Make sure parent directories exist
-                if let Some(parent) = dest_path.parent() {
-                    fs::create_dir_all(parent)?;
-                }
-
-                fs::copy(source_path, dest_path)?;
-            }
-        }
-
-        // Initialize git repo in the temp directory
-        run_git(temp_dir.path(), &["init"]).await?;
-        run_git(temp_dir.path(), &["add", "."]).await?;
-        run_git(temp_dir.path(), &["commit", "-m", "Initial commit"]).await?;
-
-        println!("Created temp repo without .docs and .meta directories");
-    }
-
-    Ok(temp_dir)
-}
--- a/crates/agent_eval/src/headless_assistant.rs
+++ b/crates/agent_eval/src/headless_assistant.rs
@@ -1,246 +0,0 @@
-use agent::{RequestKind, Thread, ThreadEvent, ThreadStore};
-use anyhow::anyhow;
-use assistant_tool::ToolWorkingSet;
-use client::{Client, UserStore};
-use collections::HashMap;
-use dap::DapRegistry;
-use gpui::{App, Entity, SemanticVersion, Subscription, Task, prelude::*};
-use language::LanguageRegistry;
-use language_model::{
-    AuthenticateError, LanguageModel, LanguageModelProviderId, LanguageModelRegistry,
-};
-use node_runtime::NodeRuntime;
-use project::{Project, RealFs};
-use prompt_store::PromptBuilder;
-use settings::SettingsStore;
-use smol::channel;
-use std::sync::Arc;
-
-/// Subset of `workspace::AppState` needed by `HeadlessAssistant`, with additional fields.
-pub struct HeadlessAppState {
-    pub languages: Arc<LanguageRegistry>,
-    pub client: Arc<Client>,
-    pub user_store: Entity<UserStore>,
-    pub fs: Arc<dyn fs::Fs>,
-    pub node_runtime: NodeRuntime,
-
-    // Additional fields not present in `workspace::AppState`.
-    pub prompt_builder: Arc<PromptBuilder>,
-}
-
-pub struct HeadlessAssistant {
-    pub thread: Entity<Thread>,
-    pub project: Entity<Project>,
-    #[allow(dead_code)]
-    pub thread_store: Entity<ThreadStore>,
-    pub tool_use_counts: HashMap<Arc<str>, u32>,
-    pub done_tx: channel::Sender<anyhow::Result<()>>,
-    _subscription: Subscription,
-}
-
-impl HeadlessAssistant {
-    pub fn new(
-        app_state: Arc<HeadlessAppState>,
-        cx: &mut App,
-    ) -> anyhow::Result<(Entity<Self>, channel::Receiver<anyhow::Result<()>>)> {
-        let env = None;
-        let project = Project::local(
-            app_state.client.clone(),
-            app_state.node_runtime.clone(),
-            app_state.user_store.clone(),
-            app_state.languages.clone(),
-            Arc::new(DapRegistry::default()),
-            app_state.fs.clone(),
-            env,
-            cx,
-        );
-
-        let tools = Arc::new(ToolWorkingSet::default());
-        let thread_store =
-            ThreadStore::new(project.clone(), tools, app_state.prompt_builder.clone(), cx)?;
-
-        let thread = thread_store.update(cx, |thread_store, cx| thread_store.create_thread(cx));
-
-        let (done_tx, done_rx) = channel::unbounded::<anyhow::Result<()>>();
-
-        let headless_thread = cx.new(move |cx| Self {
-            _subscription: cx.subscribe(&thread, Self::handle_thread_event),
-            thread,
-            project,
-            thread_store,
-            tool_use_counts: HashMap::default(),
-            done_tx,
-        });
-
-        Ok((headless_thread, done_rx))
-    }
-
-    fn handle_thread_event(
-        &mut self,
-        thread: Entity<Thread>,
-        event: &ThreadEvent,
-        cx: &mut Context<Self>,
-    ) {
-        match event {
-            ThreadEvent::ShowError(err) => self
-                .done_tx
-                .send_blocking(Err(anyhow!("{:?}", err)))
-                .unwrap(),
-            ThreadEvent::DoneStreaming => {
-                let thread = thread.read(cx);
-                if let Some(message) = thread.messages().last() {
-                    println!("Message: {}", message.to_string());
-                }
-                if thread.all_tools_finished() {
-                    self.done_tx.send_blocking(Ok(())).unwrap()
-                }
-            }
-            ThreadEvent::UsePendingTools => {
-                thread.update(cx, |thread, cx| {
-                    thread.use_pending_tools(cx);
-                });
-            }
-            ThreadEvent::ToolConfirmationNeeded => {
-                // Automatically approve all tools that need confirmation in headless mode
-                println!("Tool confirmation needed - automatically approving in headless mode");
-
-                // Get the tools needing confirmation
-                let tools_needing_confirmation: Vec<_> = thread
-                    .read(cx)
-                    .tools_needing_confirmation()
-                    .cloned()
-                    .collect();
-
-                // Run each tool that needs confirmation
-                for tool_use in tools_needing_confirmation {
-                    if let Some(tool) = thread.read(cx).tools().tool(&tool_use.name, cx) {
-                        thread.update(cx, |thread, cx| {
-                            println!("Auto-approving tool: {}", tool_use.name);
-
-                            // Create a request to send to the tool
-                            let request = thread.to_completion_request(RequestKind::Chat, cx);
-                            let messages = Arc::new(request.messages);
-
-                            // Run the tool
-                            thread.run_tool(
-                                tool_use.id.clone(),
-                                tool_use.ui_text.clone(),
-                                tool_use.input.clone(),
-                                &messages,
-                                tool,
-                                cx,
-                            );
-                        });
-                    }
-                }
-            }
-            ThreadEvent::ToolFinished {
-                tool_use_id,
-                pending_tool_use,
-                ..
-            } => {
-                if let Some(pending_tool_use) = pending_tool_use {
-                    println!(
-                        "Used tool {} with input: {}",
-                        pending_tool_use.name, pending_tool_use.input
-                    );
-                    *self
-                        .tool_use_counts
-                        .entry(pending_tool_use.name.clone())
-                        .or_insert(0) += 1;
-                }
-                if let Some(tool_result) = thread.read(cx).tool_result(tool_use_id) {
-                    println!("Tool result: {:?}", tool_result);
-                }
-                if thread.read(cx).all_tools_finished() {
-                    let model_registry = LanguageModelRegistry::read_global(cx);
-                    if let Some(model) = model_registry.default_model() {
-                        thread.update(cx, |thread, cx| {
-                            thread.attach_tool_results(cx);
-                            thread.send_to_model(model.model, RequestKind::Chat, cx);
-                        });
-                    } else {
-                        println!(
-                            "Warning: No active language model available to continue conversation"
-                        );
-                    }
-                }
-            }
-            _ => {}
-        }
-    }
-}
-
-pub fn init(cx: &mut App) -> Arc<HeadlessAppState> {
-    release_channel::init(SemanticVersion::default(), cx);
-    gpui_tokio::init(cx);
-
-    let mut settings_store = SettingsStore::new(cx);
-    settings_store
-        .set_default_settings(settings::default_settings().as_ref(), cx)
-        .unwrap();
-    cx.set_global(settings_store);
-    client::init_settings(cx);
-    Project::init_settings(cx);
-
-    let client = Client::production(cx);
-    cx.set_http_client(client.http_client().clone());
-
-    let git_binary_path = None;
-    let fs = Arc::new(RealFs::new(
-        git_binary_path,
-        cx.background_executor().clone(),
-    ));
-
-    let languages = Arc::new(LanguageRegistry::new(cx.background_executor().clone()));
-
-    let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
-
-    language::init(cx);
-    language_model::init(client.clone(), cx);
-    language_models::init(user_store.clone(), client.clone(), fs.clone(), cx);
-    assistant_tools::init(client.http_client().clone(), cx);
-    context_server::init(cx);
-    let stdout_is_a_pty = false;
-    let prompt_builder = PromptBuilder::load(fs.clone(), stdout_is_a_pty, cx);
-    agent::init(fs.clone(), client.clone(), prompt_builder.clone(), cx);
-
-    Arc::new(HeadlessAppState {
-        languages,
-        client,
-        user_store,
-        fs,
-        node_runtime: NodeRuntime::unavailable(),
-        prompt_builder,
-    })
-}
-
-pub fn find_model(model_name: &str, cx: &App) -> anyhow::Result<Arc<dyn LanguageModel>> {
-    let model_registry = LanguageModelRegistry::read_global(cx);
-    let model = model_registry
-        .available_models(cx)
-        .find(|model| model.id().0 == model_name);
-
-    let Some(model) = model else {
-        return Err(anyhow!(
-            "No language model named {} was available. Available models: {}",
-            model_name,
-            model_registry
-                .available_models(cx)
-                .map(|model| model.id().0.clone())
-                .collect::<Vec<_>>()
-                .join(", ")
-        ));
-    };
-
-    Ok(model)
-}
-
-pub fn authenticate_model_provider(
-    provider_id: LanguageModelProviderId,
-    cx: &mut App,
-) -> Task<std::result::Result<(), AuthenticateError>> {
-    let model_registry = LanguageModelRegistry::read_global(cx);
-    let model_provider = model_registry.provider(&provider_id).unwrap();
-    model_provider.authenticate(cx)
-}
--- a/crates/agent_eval/src/main.rs
+++ b/crates/agent_eval/src/main.rs
@@ -1,205 +0,0 @@
-mod eval;
-mod get_exercise;
-mod git_commands;
-mod headless_assistant;
-
-use clap::Parser;
-use eval::{run_exercise_eval, save_eval_results};
-use futures::stream::{self, StreamExt};
-use get_exercise::{find_exercises, get_exercise_language, get_exercise_name};
-use git_commands::read_base_sha;
-use gpui::Application;
-use headless_assistant::{authenticate_model_provider, find_model};
-use language_model::LanguageModelRegistry;
-use reqwest_client::ReqwestClient;
-use std::{path::PathBuf, sync::Arc};
-
-#[derive(Parser, Debug)]
-#[command(
-    name = "agent_eval",
-    disable_version_flag = true,
-    before_help = "Tool eval runner"
-)]
-struct Args {
-    /// Match the names of evals to run.
-    #[arg(long)]
-    exercise_names: Vec<String>,
-    /// Runs all exercises, causes the exercise_names to be ignored.
-    #[arg(long)]
-    all: bool,
-    /// Supported language types to evaluate (default: internal).
-    /// Internal is data generated from the agent panel
-    #[arg(long, default_value = "internal")]
-    languages: String,
-    /// Name of the model (default: "claude-3-7-sonnet-latest")
-    #[arg(long, default_value = "claude-3-7-sonnet-latest")]
-    model_name: String,
-    /// Name of the editor model (default: value of `--model_name`).
-    #[arg(long)]
-    editor_model_name: Option<String>,
-    /// Number of evaluations to run concurrently (default: 3)
-    #[arg(short, long, default_value = "5")]
-    concurrency: usize,
-    /// Maximum number of exercises to evaluate per language
-    #[arg(long)]
-    max_exercises_per_language: Option<usize>,
-}
-
-fn main() {
-    env_logger::init();
-    let args = Args::parse();
-    let http_client = Arc::new(ReqwestClient::new());
-    let app = Application::headless().with_http_client(http_client.clone());
-
-    // Path to the zed-ace-framework repo
-    let framework_path = PathBuf::from("../zed-ace-framework")
-        .canonicalize()
-        .unwrap();
-
-    // Fix the 'languages' lifetime issue by creating owned Strings instead of slices
-    let languages: Vec<String> = args.languages.split(',').map(|s| s.to_string()).collect();
-
-    println!("Using zed-ace-framework at: {:?}", framework_path);
-    println!("Evaluating languages: {:?}", languages);
-
-    app.run(move |cx| {
-        let app_state = headless_assistant::init(cx);
-
-        let model = find_model(&args.model_name, cx).unwrap();
-        let editor_model = if let Some(model_name) = &args.editor_model_name {
-            find_model(model_name, cx).unwrap()
-        } else {
-            model.clone()
-        };
-
-        LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
-            registry.set_default_model(Some(model.clone()), cx);
-        });
-
-        let model_provider_id = model.provider_id();
-        let editor_model_provider_id = editor_model.provider_id();
-
-        let framework_path_clone = framework_path.clone();
-        let languages_clone = languages.clone();
-        let exercise_names = args.exercise_names.clone();
-        let all_flag = args.all;
-
-        cx.spawn(async move |cx| {
-            // Authenticate all model providers first
-            cx.update(|cx| authenticate_model_provider(model_provider_id.clone(), cx))
-                .unwrap()
-                .await
-                .unwrap();
-            cx.update(|cx| authenticate_model_provider(editor_model_provider_id.clone(), cx))
-                .unwrap()
-                .await
-                .unwrap();
-
-            println!("framework path: {}", framework_path_clone.display());
-
-            let base_sha = read_base_sha(&framework_path_clone).await.unwrap();
-
-            println!("base sha: {}", base_sha);
-
-            let all_exercises = find_exercises(
-                &framework_path_clone,
-                &languages_clone
-                    .iter()
-                    .map(|s| s.as_str())
-                    .collect::<Vec<_>>(),
-                args.max_exercises_per_language,
-            )
-            .unwrap();
-            println!("Found {} exercises total", all_exercises.len());
-
-            // Filter exercises if specific ones were requested
-            let exercises_to_run = if !exercise_names.is_empty() {
-                // If exercise names are specified, filter by them regardless of --all flag
-                all_exercises
-                    .into_iter()
-                    .filter(|path| {
-                        let name = get_exercise_name(path);
-                        exercise_names.iter().any(|filter| name.contains(filter))
-                    })
-                    .collect()
-            } else if all_flag {
-                // Only use all_flag if no exercise names are specified
-                all_exercises
-            } else {
-                // Default behavior (no filters)
-                all_exercises
-            };
-
-            println!("Will run {} exercises", exercises_to_run.len());
-
-            // Create exercise eval tasks - each exercise is a single task that will run templates sequentially
-            let exercise_tasks: Vec<_> = exercises_to_run
-                .into_iter()
-                .map(|exercise_path| {
-                    let exercise_name = get_exercise_name(&exercise_path);
-                    let model_clone = model.clone();
-                    let app_state_clone = app_state.clone();
-                    let base_sha_clone = base_sha.clone();
-                    let framework_path_clone = framework_path_clone.clone();
-                    let cx_clone = cx.clone();
-
-                    async move {
-                        println!("Processing exercise: {}", exercise_name);
-                        let mut exercise_results = Vec::new();
-
-                        match run_exercise_eval(
-                            exercise_path.clone(),
-                            model_clone.clone(),
-                            app_state_clone.clone(),
-                            base_sha_clone.clone(),
-                            framework_path_clone.clone(),
-                            cx_clone.clone(),
-                        )
-                        .await
-                        {
-                            Ok(result) => {
-                                println!("Completed {}", exercise_name);
-                                exercise_results.push(result);
-                            }
-                            Err(err) => {
-                                println!("Error running {}: {}", exercise_name, err);
-                            }
-                        }
-
-                        // Save results for this exercise
-                        if !exercise_results.is_empty() {
-                            if let Err(err) =
-                                save_eval_results(&exercise_path, exercise_results.clone()).await
-                            {
-                                println!("Error saving results for {}: {}", exercise_name, err);
-                            } else {
-                                println!("Saved results for {}", exercise_name);
-                            }
-                        }
-
-                        exercise_results
-                    }
-                })
-                .collect();
-
-            println!(
-                "Running {} exercises with concurrency: {}",
-                exercise_tasks.len(),
-                args.concurrency
-            );
-
-            // Run exercises concurrently, with each exercise running its templates sequentially
-            let all_results = stream::iter(exercise_tasks)
-                .buffer_unordered(args.concurrency)
-                .flat_map(stream::iter)
-                .collect::<Vec<_>>()
-                .await;
-
-            println!("Completed {} evaluation runs", all_results.len());
-            cx.update(|cx| cx.quit()).unwrap();
-        })
-        .detach();
-    });
-
-    println!("Done running evals");
-}
--- a/crates/anthropic/Cargo.toml
+++ b/crates/anthropic/Cargo.toml
@@ -25,5 +25,4 @@ serde.workspace = true
 serde_json.workspace = true
 strum.workspace = true
 thiserror.workspace = true
-util.workspace = true
 workspace-hack.workspace = true
--- a/crates/anthropic/src/anthropic.rs
+++ b/crates/anthropic/src/anthropic.rs
@@ -10,7 +10,6 @@ use http_client::{AsyncBody, HttpClient, Method, Request as HttpRequest};
 use serde::{Deserialize, Serialize};
 use strum::{EnumIter, EnumString};
 use thiserror::Error;
-use util::ResultExt as _;

 pub use supported_countries::*;

@@ -37,9 +36,9 @@ pub enum AnthropicModelMode {
 #[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]
 #[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, EnumIter)]
 pub enum Model {
-    #[default]
    #[serde(rename = "claude-3-5-sonnet", alias = "claude-3-5-sonnet-latest")]
    Claude3_5Sonnet,
+    #[default]
    #[serde(rename = "claude-3-7-sonnet", alias = "claude-3-7-sonnet-latest")]
    Claude3_7Sonnet,
    #[serde(
@@ -363,11 +362,25 @@ pub struct RateLimitInfo {

 impl RateLimitInfo {
    fn from_headers(headers: &HeaderMap<HeaderValue>) -> Self {
+        // Check if any rate limit headers exist
+        let has_rate_limit_headers = headers
+            .keys()
+            .any(|k| k.as_str().starts_with("anthropic-ratelimit-"));
+
+        if !has_rate_limit_headers {
+            return Self {
+                requests: None,
+                tokens: None,
+                input_tokens: None,
+                output_tokens: None,
+            };
+        }
+
        Self {
-            requests: RateLimit::from_headers("requests", headers).log_err(),
-            tokens: RateLimit::from_headers("tokens", headers).log_err(),
-            input_tokens: RateLimit::from_headers("input-tokens", headers).log_err(),
-            output_tokens: RateLimit::from_headers("output-tokens", headers).log_err(),
+            requests: RateLimit::from_headers("requests", headers).ok(),
+            tokens: RateLimit::from_headers("tokens", headers).ok(),
+            input_tokens: RateLimit::from_headers("input-tokens", headers).ok(),
+            output_tokens: RateLimit::from_headers("output-tokens", headers).ok(),
        }
    }
 }
@@ -724,4 +737,54 @@ impl ApiError {
    pub fn is_rate_limit_error(&self) -> bool {
        matches!(self.error_type.as_str(), "rate_limit_error")
    }
+
+    pub fn match_window_exceeded(&self) -> Option<usize> {
+        let Some(ApiErrorCode::InvalidRequestError) = self.code() else {
+            return None;
+        };
+
+        parse_prompt_too_long(&self.message)
+    }
+}
+
+pub fn parse_prompt_too_long(message: &str) -> Option<usize> {
+    message
+        .strip_prefix("prompt is too long: ")?
+        .split_once(" tokens")?
+        .0
+        .parse::<usize>()
+        .ok()
+}
+
+#[test]
+fn test_match_window_exceeded() {
+    let error = ApiError {
+        error_type: "invalid_request_error".to_string(),
+        message: "prompt is too long: 220000 tokens > 200000".to_string(),
+    };
+    assert_eq!(error.match_window_exceeded(), Some(220_000));
+
+    let error = ApiError {
+        error_type: "invalid_request_error".to_string(),
+        message: "prompt is too long: 1234953 tokens".to_string(),
+    };
+    assert_eq!(error.match_window_exceeded(), Some(1234953));
+
+    let error = ApiError {
+        error_type: "invalid_request_error".to_string(),
+        message: "not a prompt length error".to_string(),
+    };
+    assert_eq!(error.match_window_exceeded(), None);
+
+    let error = ApiError {
+        error_type: "rate_limit_error".to_string(),
+        message: "prompt is too long: 12345 tokens".to_string(),
+    };
+    assert_eq!(error.match_window_exceeded(), None);
+
+    let error = ApiError {
+        error_type: "invalid_request_error".to_string(),
+        message: "prompt is too long: invalid tokens".to_string(),
+    };
+    assert_eq!(error.match_window_exceeded(), None);
 }
--- a/crates/assistant_context_editor/src/context_editor.rs
+++ b/crates/assistant_context_editor/src/context_editor.rs
@@ -10,7 +10,7 @@ use collections::{BTreeSet, HashMap, HashSet, hash_map};
 use editor::{
    Anchor, Editor, EditorEvent, MenuInlineCompletionsPolicy, ProposedChangeLocation,
    ProposedChangesEditor, RowExt, ToOffset as _, ToPoint,
-    actions::{FoldAt, MoveToEndOfLine, Newline, ShowCompletions, UnfoldAt},
+    actions::{MoveToEndOfLine, Newline, ShowCompletions},
    display_map::{
        BlockContext, BlockId, BlockPlacement, BlockProperties, BlockStyle, Crease, CreaseMetadata,
        CustomBlockId, FoldId, RenderBlock, ToDisplayPoint,
@@ -1053,7 +1053,7 @@ impl ContextEditor {
            let creases = editor.insert_creases(creases, cx);

            for buffer_row in buffer_rows_to_fold.into_iter().rev() {
-                editor.fold_at(&FoldAt { buffer_row }, window, cx);
+                editor.fold_at(buffer_row, window, cx);
            }

            creases
@@ -1109,7 +1109,7 @@ impl ContextEditor {
                buffer_rows_to_fold.clear();
            }
            for buffer_row in buffer_rows_to_fold.into_iter().rev() {
-                editor.fold_at(&FoldAt { buffer_row }, window, cx);
+                editor.fold_at(buffer_row, window, cx);
            }
        });
    }
@@ -1844,13 +1844,7 @@ impl ContextEditor {
                    |_, _, _, _| Empty.into_any(),
                );
                editor.insert_creases(vec![crease], cx);
-                editor.fold_at(
-                    &FoldAt {
-                        buffer_row: start_row,
-                    },
-                    window,
-                    cx,
-                );
+                editor.fold_at(start_row, window, cx);
            }
        })
    }
@@ -2042,7 +2036,7 @@ impl ContextEditor {
                        cx,
                    );
                    for buffer_row in buffer_rows_to_fold.into_iter().rev() {
-                        editor.fold_at(&FoldAt { buffer_row }, window, cx);
+                        editor.fold_at(buffer_row, window, cx);
                    }
                }
            });
@@ -2793,7 +2787,7 @@ fn render_thought_process_fold_icon_button(
        let button = match status {
            ThoughtProcessStatus::Pending => button
                .child(
-                    Icon::new(IconName::Brain)
+                    Icon::new(IconName::LightBulb)
                        .size(IconSize::Small)
                        .color(Color::Muted),
                )
@@ -2808,7 +2802,7 @@ fn render_thought_process_fold_icon_button(
                ),
            ThoughtProcessStatus::Completed => button
                .style(ButtonStyle::Filled)
-                .child(Icon::new(IconName::Brain).size(IconSize::Small))
+                .child(Icon::new(IconName::LightBulb).size(IconSize::Small))
                .child(Label::new("Thought Process").single_line()),
        };

@@ -2820,7 +2814,7 @@ fn render_thought_process_fold_icon_button(
                            .start
                            .to_point(&editor.buffer().read(cx).read(cx));
                        let buffer_row = MultiBufferRow(buffer_start.row);
-                        editor.unfold_at(&UnfoldAt { buffer_row }, window, cx);
+                        editor.unfold_at(buffer_row, window, cx);
                    })
                    .ok();
            })
@@ -2847,7 +2841,7 @@ fn render_fold_icon_button(
                            .start
                            .to_point(&editor.buffer().read(cx).read(cx));
                        let buffer_row = MultiBufferRow(buffer_start.row);
-                        editor.unfold_at(&UnfoldAt { buffer_row }, window, cx);
+                        editor.unfold_at(buffer_row, window, cx);
                    })
                    .ok();
            })
@@ -2907,7 +2901,7 @@ fn quote_selection_fold_placeholder(title: String, editor: WeakEntity<Editor>) -
                                    .start
                                    .to_point(&editor.buffer().read(cx).read(cx));
                                let buffer_row = MultiBufferRow(buffer_start.row);
-                                editor.unfold_at(&UnfoldAt { buffer_row }, window, cx);
+                                editor.unfold_at(buffer_row, window, cx);
                            })
                            .ok();
                    })
--- a/crates/assistant_context_editor/src/slash_command.rs
+++ b/crates/assistant_context_editor/src/slash_command.rs
@@ -120,7 +120,7 @@ impl SlashCommandCompletionProvider {
                                        ) as Arc<_>
                                    });
                            Some(project::Completion {
-                                old_range: name_range.clone(),
+                                replace_range: name_range.clone(),
                                documentation: Some(CompletionDocumentation::SingleLine(
                                    command.description().into(),
                                )),
@@ -219,7 +219,7 @@ impl SlashCommandCompletionProvider {
                            }

                            project::Completion {
-                                old_range: if new_argument.replace_previous_arguments {
+                                replace_range: if new_argument.replace_previous_arguments {
                                    argument_range.clone()
                                } else {
                                    last_argument_range.clone()
--- a/crates/assistant_settings/src/assistant_settings.rs
+++ b/crates/assistant_settings/src/assistant_settings.rs
@@ -69,7 +69,7 @@ pub enum AssistantProviderContentV1 {
    },
 }

-#[derive(Debug, Default)]
+#[derive(Clone, Debug, Default)]
 pub struct AssistantSettings {
    pub enabled: bool,
    pub button: bool,
@@ -742,7 +742,7 @@ mod tests {
                AssistantSettings::get_global(cx).default_model,
                LanguageModelSelection {
                    provider: "zed.dev".into(),
-                    model: "claude-3-5-sonnet-latest".into(),
+                    model: "claude-3-7-sonnet-latest".into(),
                }
            );
        });
--- a/crates/assistant_tool/src/action_log.rs
+++ b/crates/assistant_tool/src/action_log.rs
@@ -4,7 +4,7 @@ use collections::BTreeMap;
 use futures::{StreamExt, channel::mpsc};
 use gpui::{App, AppContext, AsyncApp, Context, Entity, Subscription, Task, WeakEntity};
 use language::{Anchor, Buffer, BufferEvent, DiskState, Point};
-use project::{Project, ProjectItem};
+use project::{Project, ProjectItem, lsp_store::OpenLspBufferHandle};
 use std::{cmp, ops::Range, sync::Arc};
 use text::{Edit, Patch, Rope};
 use util::RangeExt;
@@ -49,6 +49,10 @@ impl ActionLog {
            .tracked_buffers
            .entry(buffer.clone())
            .or_insert_with(|| {
+                let open_lsp_handle = self.project.update(cx, |project, cx| {
+                    project.register_buffer_with_language_servers(&buffer, cx)
+                });
+
                let text_snapshot = buffer.read(cx).text_snapshot();
                let diff = cx.new(|cx| BufferDiff::new(&text_snapshot, cx));
                let (diff_update_tx, diff_update_rx) = mpsc::unbounded();
@@ -76,6 +80,7 @@ impl ActionLog {
                    version: buffer.read(cx).version(),
                    diff,
                    diff_update: diff_update_tx,
+                    _open_lsp_handle: open_lsp_handle,
                    _maintain_diff: cx.spawn({
                        let buffer = buffer.clone();
                        async move |this, cx| {
@@ -235,7 +240,7 @@ impl ActionLog {
                    .await;

                diff.update(cx, |diff, cx| {
-                    diff.set_snapshot(diff_snapshot, &buffer_snapshot, None, cx)
+                    diff.set_snapshot(diff_snapshot, &buffer_snapshot, cx)
                })?;
            }
            this.update(cx, |this, cx| {
@@ -615,6 +620,7 @@ struct TrackedBuffer {
    diff: Entity<BufferDiff>,
    snapshot: text::BufferSnapshot,
    diff_update: mpsc::UnboundedSender<(ChangeAuthor, text::BufferSnapshot)>,
+    _open_lsp_handle: OpenLspBufferHandle,
    _maintain_diff: Task<()>,
    _subscription: Subscription,
 }
--- a/crates/assistant_tool/src/assistant_tool.rs
+++ b/crates/assistant_tool/src/assistant_tool.rs
@@ -1,5 +1,6 @@
 mod action_log;
 mod tool_registry;
+mod tool_schema;
 mod tool_working_set;

 use std::fmt;
@@ -16,12 +17,26 @@ use project::Project;

 pub use crate::action_log::*;
 pub use crate::tool_registry::*;
+pub use crate::tool_schema::*;
 pub use crate::tool_working_set::*;

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

+/// The result of running a tool
+pub struct ToolResult {
+    /// The asynchronous task that will eventually resolve to the tool's output
+    pub output: Task<Result<String>>,
+}
+
+impl From<Task<Result<String>>> for ToolResult {
+    /// Convert from a task to a ToolResult
+    fn from(output: Task<Result<String>>) -> Self {
+        Self { output }
+    }
+}
+
 #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone)]
 pub enum ToolSource {
    /// A native tool built-in to Zed.
@@ -48,11 +63,11 @@ pub trait Tool: 'static + Send + Sync {

    /// Returns true iff the tool needs the users's confirmation
    /// before having permission to run.
-    fn needs_confirmation(&self) -> bool;
+    fn needs_confirmation(&self, input: &serde_json::Value, cx: &App) -> bool;

    /// Returns the JSON schema that describes the tool's input.
-    fn input_schema(&self, _: LanguageModelToolSchemaFormat) -> serde_json::Value {
-        serde_json::Value::Object(serde_json::Map::default())
+    fn input_schema(&self, _: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
+        Ok(serde_json::Value::Object(serde_json::Map::default()))
    }

    /// Returns markdown to be displayed in the UI for this tool.
@@ -66,7 +81,7 @@ pub trait Tool: 'static + Send + Sync {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>>;
+    ) -> ToolResult;
 }

 impl Debug for dyn Tool {
--- a/crates/assistant_tool/src/tool_schema.rs
+++ b/crates/assistant_tool/src/tool_schema.rs
@@ -0,0 +1,236 @@
+use anyhow::Result;
+use serde_json::Value;
+
+use crate::LanguageModelToolSchemaFormat;
+
+/// Tries to adapt a JSON schema representation to be compatible with the specified format.
+///
+/// If the json cannot be made compatible with the specified format, an error is returned.
+pub fn adapt_schema_to_format(
+    json: &mut Value,
+    format: LanguageModelToolSchemaFormat,
+) -> Result<()> {
+    match format {
+        LanguageModelToolSchemaFormat::JsonSchema => Ok(()),
+        LanguageModelToolSchemaFormat::JsonSchemaSubset => adapt_to_json_schema_subset(json),
+    }
+}
+
+/// Tries to adapt the json schema so that it is compatible with https://ai.google.dev/api/caching#Schema
+fn adapt_to_json_schema_subset(json: &mut Value) -> Result<()> {
+    if let Value::Object(obj) = json {
+        const UNSUPPORTED_KEYS: [&str; 4] = ["if", "then", "else", "$ref"];
+
+        for key in UNSUPPORTED_KEYS {
+            if obj.contains_key(key) {
+                return Err(anyhow::anyhow!(
+                    "Schema cannot be made compatible because it contains \"{}\" ",
+                    key
+                ));
+            }
+        }
+
+        const KEYS_TO_REMOVE: [&str; 2] = ["format", "$schema"];
+        for key in KEYS_TO_REMOVE {
+            obj.remove(key);
+        }
+
+        if let Some(default) = obj.get("default") {
+            let is_null = default.is_null();
+            // Default is not supported, so we need to remove it
+            obj.remove("default");
+            if is_null {
+                obj.insert("nullable".to_string(), Value::Bool(true));
+            }
+        }
+
+        // If a type is not specified for an input parameter, add a default type
+        if obj.contains_key("description")
+            && !obj.contains_key("type")
+            && !(obj.contains_key("anyOf")
+                || obj.contains_key("oneOf")
+                || obj.contains_key("allOf"))
+        {
+            obj.insert("type".to_string(), Value::String("string".to_string()));
+        }
+
+        // Handle oneOf -> anyOf conversion
+        if let Some(subschemas) = obj.get_mut("oneOf") {
+            if subschemas.is_array() {
+                let subschemas_clone = subschemas.clone();
+                obj.remove("oneOf");
+                obj.insert("anyOf".to_string(), subschemas_clone);
+            }
+        }
+
+        // Recursively process all nested objects and arrays
+        for (_, value) in obj.iter_mut() {
+            if let Value::Object(_) | Value::Array(_) = value {
+                adapt_to_json_schema_subset(value)?;
+            }
+        }
+    } else if let Value::Array(arr) = json {
+        for item in arr.iter_mut() {
+            adapt_to_json_schema_subset(item)?;
+        }
+    }
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use serde_json::json;
+
+    #[test]
+    fn test_transform_default_null_to_nullable() {
+        let mut json = json!({
+            "description": "A test field",
+            "type": "string",
+            "default": null
+        });
+
+        adapt_to_json_schema_subset(&mut json).unwrap();
+
+        assert_eq!(
+            json,
+            json!({
+                "description": "A test field",
+                "type": "string",
+                "nullable": true
+            })
+        );
+    }
+
+    #[test]
+    fn test_transform_adds_type_when_missing() {
+        let mut json = json!({
+            "description": "A test field without type"
+        });
+
+        adapt_to_json_schema_subset(&mut json).unwrap();
+
+        assert_eq!(
+            json,
+            json!({
+                "description": "A test field without type",
+                "type": "string"
+            })
+        );
+    }
+
+    #[test]
+    fn test_transform_removes_format() {
+        let mut json = json!({
+            "description": "A test field",
+            "type": "integer",
+            "format": "uint32"
+        });
+
+        adapt_to_json_schema_subset(&mut json).unwrap();
+
+        assert_eq!(
+            json,
+            json!({
+                "description": "A test field",
+                "type": "integer"
+            })
+        );
+    }
+
+    #[test]
+    fn test_transform_one_of_to_any_of() {
+        let mut json = json!({
+            "description": "A test field",
+            "oneOf": [
+                { "type": "string" },
+                { "type": "integer" }
+            ]
+        });
+
+        adapt_to_json_schema_subset(&mut json).unwrap();
+
+        assert_eq!(
+            json,
+            json!({
+                "description": "A test field",
+                "anyOf": [
+                    { "type": "string" },
+                    { "type": "integer" }
+                ]
+            })
+        );
+    }
+
+    #[test]
+    fn test_transform_nested_objects() {
+        let mut json = json!({
+            "type": "object",
+            "properties": {
+                "nested": {
+                    "oneOf": [
+                        { "type": "string" },
+                        { "type": "null" }
+                    ],
+                    "format": "email"
+                }
+            }
+        });
+
+        adapt_to_json_schema_subset(&mut json).unwrap();
+
+        assert_eq!(
+            json,
+            json!({
+                "type": "object",
+                "properties": {
+                    "nested": {
+                        "anyOf": [
+                            { "type": "string" },
+                            { "type": "null" }
+                        ]
+                    }
+                }
+            })
+        );
+    }
+
+    #[test]
+    fn test_transform_fails_if_unsupported_keys_exist() {
+        let mut json = json!({
+            "type": "object",
+            "properties": {
+                "$ref": "#/definitions/User",
+            }
+        });
+
+        assert!(adapt_to_json_schema_subset(&mut json).is_err());
+
+        let mut json = json!({
+            "type": "object",
+            "properties": {
+                "if": "...",
+            }
+        });
+
+        assert!(adapt_to_json_schema_subset(&mut json).is_err());
+
+        let mut json = json!({
+            "type": "object",
+            "properties": {
+                "then": "...",
+            }
+        });
+
+        assert!(adapt_to_json_schema_subset(&mut json).is_err());
+
+        let mut json = json!({
+            "type": "object",
+            "properties": {
+                "else": "...",
+            }
+        });
+
+        assert!(adapt_to_json_schema_subset(&mut json).is_err());
+    }
+}
--- a/crates/assistant_tool/src/tool_working_set.rs
+++ b/crates/assistant_tool/src/tool_working_set.rs
@@ -1,8 +1,7 @@
 use std::sync::Arc;

 use collections::{HashMap, HashSet, IndexMap};
-use gpui::App;
-use parking_lot::Mutex;
+use gpui::{App, Context, EventEmitter};

 use crate::{Tool, ToolRegistry, ToolSource};

@@ -12,11 +11,6 @@ pub struct ToolId(usize);
 /// A working set of tools for use in one instance of the Assistant Panel.
 #[derive(Default)]
 pub struct ToolWorkingSet {
-    state: Mutex<WorkingSetState>,
-}
-
-#[derive(Default)]
-struct WorkingSetState {
    context_server_tools_by_id: HashMap<ToolId, Arc<dyn Tool>>,
    context_server_tools_by_name: HashMap<String, Arc<dyn Tool>>,
    enabled_sources: HashSet<ToolSource>,
@@ -24,99 +18,27 @@ struct WorkingSetState {
    next_tool_id: ToolId,
 }

+pub enum ToolWorkingSetEvent {
+    EnabledToolsChanged,
+}
+
+impl EventEmitter<ToolWorkingSetEvent> for ToolWorkingSet {}
+
 impl ToolWorkingSet {
    pub fn tool(&self, name: &str, cx: &App) -> Option<Arc<dyn Tool>> {
-        self.state
-            .lock()
-            .context_server_tools_by_name
+        self.context_server_tools_by_name
            .get(name)
            .cloned()
            .or_else(|| ToolRegistry::global(cx).tool(name))
    }

    pub fn tools(&self, cx: &App) -> Vec<Arc<dyn Tool>> {
-        self.state.lock().tools(cx)
-    }
-
-    pub fn tools_by_source(&self, cx: &App) -> IndexMap<ToolSource, Vec<Arc<dyn Tool>>> {
-        self.state.lock().tools_by_source(cx)
-    }
-
-    pub fn enabled_tools(&self, cx: &App) -> Vec<Arc<dyn Tool>> {
-        self.state.lock().enabled_tools(cx)
-    }
-
-    pub fn disable_all_tools(&self) {
-        let mut state = self.state.lock();
-        state.disable_all_tools();
-    }
-
-    pub fn enable_source(&self, source: ToolSource, cx: &App) {
-        let mut state = self.state.lock();
-        state.enable_source(source, cx);
-    }
-
-    pub fn disable_source(&self, source: &ToolSource) {
-        let mut state = self.state.lock();
-        state.disable_source(source);
-    }
-
-    pub fn insert(&self, tool: Arc<dyn Tool>) -> ToolId {
-        let mut state = self.state.lock();
-        let tool_id = state.next_tool_id;
-        state.next_tool_id.0 += 1;
-        state
-            .context_server_tools_by_id
-            .insert(tool_id, tool.clone());
-        state.tools_changed();
-        tool_id
-    }
-
-    pub fn is_enabled(&self, source: &ToolSource, name: &Arc<str>) -> bool {
-        self.state.lock().is_enabled(source, name)
-    }
-
-    pub fn is_disabled(&self, source: &ToolSource, name: &Arc<str>) -> bool {
-        self.state.lock().is_disabled(source, name)
-    }
-
-    pub fn enable(&self, source: ToolSource, tools_to_enable: &[Arc<str>]) {
-        let mut state = self.state.lock();
-        state.enable(source, tools_to_enable);
-    }
-
-    pub fn disable(&self, source: ToolSource, tools_to_disable: &[Arc<str>]) {
-        let mut state = self.state.lock();
-        state.disable(source, tools_to_disable);
-    }
-
-    pub fn remove(&self, tool_ids_to_remove: &[ToolId]) {
-        let mut state = self.state.lock();
-        state
-            .context_server_tools_by_id
-            .retain(|id, _| !tool_ids_to_remove.contains(id));
-        state.tools_changed();
-    }
-}
-
-impl WorkingSetState {
-    fn tools_changed(&mut self) {
-        self.context_server_tools_by_name.clear();
-        self.context_server_tools_by_name.extend(
-            self.context_server_tools_by_id
-                .values()
-                .map(|tool| (tool.name(), tool.clone())),
-        );
-    }
-
-    fn tools(&self, cx: &App) -> Vec<Arc<dyn Tool>> {
        let mut tools = ToolRegistry::global(cx).tools();
        tools.extend(self.context_server_tools_by_id.values().cloned());
-
        tools
    }

-    fn tools_by_source(&self, cx: &App) -> IndexMap<ToolSource, Vec<Arc<dyn Tool>>> {
+    pub fn tools_by_source(&self, cx: &App) -> IndexMap<ToolSource, Vec<Arc<dyn Tool>>> {
        let mut tools_by_source = IndexMap::default();

        for tool in self.tools(cx) {
@@ -135,7 +57,7 @@ impl WorkingSetState {
        tools_by_source
    }

-    fn enabled_tools(&self, cx: &App) -> Vec<Arc<dyn Tool>> {
+    pub fn enabled_tools(&self, cx: &App) -> Vec<Arc<dyn Tool>> {
        let all_tools = self.tools(cx);

        all_tools
@@ -144,31 +66,12 @@ impl WorkingSetState {
            .collect()
    }

-    fn is_enabled(&self, source: &ToolSource, name: &Arc<str>) -> bool {
-        self.enabled_tools_by_source
-            .get(source)
-            .map_or(false, |enabled_tools| enabled_tools.contains(name))
+    pub fn disable_all_tools(&mut self, cx: &mut Context<Self>) {
+        self.enabled_tools_by_source.clear();
+        cx.emit(ToolWorkingSetEvent::EnabledToolsChanged);
    }

-    fn is_disabled(&self, source: &ToolSource, name: &Arc<str>) -> bool {
-        !self.is_enabled(source, name)
-    }
-
-    fn enable(&mut self, source: ToolSource, tools_to_enable: &[Arc<str>]) {
-        self.enabled_tools_by_source
-            .entry(source)
-            .or_default()
-            .extend(tools_to_enable.into_iter().cloned());
-    }
-
-    fn disable(&mut self, source: ToolSource, tools_to_disable: &[Arc<str>]) {
-        self.enabled_tools_by_source
-            .entry(source)
-            .or_default()
-            .retain(|name| !tools_to_disable.contains(name));
-    }
-
-    fn enable_source(&mut self, source: ToolSource, cx: &App) {
+    pub fn enable_source(&mut self, source: ToolSource, cx: &mut Context<Self>) {
        self.enabled_sources.insert(source.clone());

        let tools_by_source = self.tools_by_source(cx);
@@ -181,14 +84,72 @@ impl WorkingSetState {
                    .collect::<HashSet<_>>(),
            );
        }
+        cx.emit(ToolWorkingSetEvent::EnabledToolsChanged);
    }

-    fn disable_source(&mut self, source: &ToolSource) {
+    pub fn disable_source(&mut self, source: &ToolSource, cx: &mut Context<Self>) {
        self.enabled_sources.remove(source);
        self.enabled_tools_by_source.remove(source);
+        cx.emit(ToolWorkingSetEvent::EnabledToolsChanged);
    }

-    fn disable_all_tools(&mut self) {
-        self.enabled_tools_by_source.clear();
+    pub fn insert(&mut self, tool: Arc<dyn Tool>) -> ToolId {
+        let tool_id = self.next_tool_id;
+        self.next_tool_id.0 += 1;
+        self.context_server_tools_by_id
+            .insert(tool_id, tool.clone());
+        self.tools_changed();
+        tool_id
+    }
+
+    pub fn is_enabled(&self, source: &ToolSource, name: &Arc<str>) -> bool {
+        self.enabled_tools_by_source
+            .get(source)
+            .map_or(false, |enabled_tools| enabled_tools.contains(name))
+    }
+
+    pub fn is_disabled(&self, source: &ToolSource, name: &Arc<str>) -> bool {
+        !self.is_enabled(source, name)
+    }
+
+    pub fn enable(
+        &mut self,
+        source: ToolSource,
+        tools_to_enable: &[Arc<str>],
+        cx: &mut Context<Self>,
+    ) {
+        self.enabled_tools_by_source
+            .entry(source)
+            .or_default()
+            .extend(tools_to_enable.into_iter().cloned());
+        cx.emit(ToolWorkingSetEvent::EnabledToolsChanged);
+    }
+
+    pub fn disable(
+        &mut self,
+        source: ToolSource,
+        tools_to_disable: &[Arc<str>],
+        cx: &mut Context<Self>,
+    ) {
+        self.enabled_tools_by_source
+            .entry(source)
+            .or_default()
+            .retain(|name| !tools_to_disable.contains(name));
+        cx.emit(ToolWorkingSetEvent::EnabledToolsChanged);
+    }
+
+    pub fn remove(&mut self, tool_ids_to_remove: &[ToolId]) {
+        self.context_server_tools_by_id
+            .retain(|id, _| !tool_ids_to_remove.contains(id));
+        self.tools_changed();
+    }
+
+    fn tools_changed(&mut self) {
+        self.context_server_tools_by_name.clear();
+        self.context_server_tools_by_name.extend(
+            self.context_server_tools_by_id
+                .values()
+                .map(|tool| (tool.name(), tool.clone())),
+        );
    }
 }
--- a/crates/assistant_tools/src/assistant_tools.rs
+++ b/crates/assistant_tools/src/assistant_tools.rs
@@ -1,6 +1,7 @@
-mod bash_tool;
 mod batch_tool;
+mod code_action_tool;
 mod code_symbols_tool;
+mod contents_tool;
 mod copy_path_tool;
 mod create_directory_tool;
 mod create_file_tool;
@@ -15,9 +16,11 @@ mod open_tool;
 mod path_search_tool;
 mod read_file_tool;
 mod regex_search_tool;
+mod rename_tool;
 mod replace;
 mod schema;
 mod symbol_info_tool;
+mod terminal_tool;
 mod thinking_tool;

 use std::sync::Arc;
@@ -28,9 +31,10 @@ use gpui::App;
 use http_client::HttpClientWithUrl;
 use move_path_tool::MovePathTool;

-use crate::bash_tool::BashTool;
 use crate::batch_tool::BatchTool;
+use crate::code_action_tool::CodeActionTool;
 use crate::code_symbols_tool::CodeSymbolsTool;
+use crate::contents_tool::ContentsTool;
 use crate::create_directory_tool::CreateDirectoryTool;
 use crate::create_file_tool::CreateFileTool;
 use crate::delete_path_tool::DeletePathTool;
@@ -43,14 +47,16 @@ use crate::open_tool::OpenTool;
 use crate::path_search_tool::PathSearchTool;
 use crate::read_file_tool::ReadFileTool;
 use crate::regex_search_tool::RegexSearchTool;
+use crate::rename_tool::RenameTool;
 use crate::symbol_info_tool::SymbolInfoTool;
+use crate::terminal_tool::TerminalTool;
 use crate::thinking_tool::ThinkingTool;

 pub fn init(http_client: Arc<HttpClientWithUrl>, cx: &mut App) {
    assistant_tool::init(cx);

    let registry = ToolRegistry::global(cx);
-    registry.register_tool(BashTool);
+    registry.register_tool(TerminalTool);
    registry.register_tool(BatchTool);
    registry.register_tool(CreateDirectoryTool);
    registry.register_tool(CreateFileTool);
@@ -58,15 +64,57 @@ pub fn init(http_client: Arc<HttpClientWithUrl>, cx: &mut App) {
    registry.register_tool(DeletePathTool);
    registry.register_tool(FindReplaceFileTool);
    registry.register_tool(SymbolInfoTool);
+    registry.register_tool(CodeActionTool);
    registry.register_tool(MovePathTool);
    registry.register_tool(DiagnosticsTool);
    registry.register_tool(ListDirectoryTool);
    registry.register_tool(NowTool);
    registry.register_tool(OpenTool);
    registry.register_tool(CodeSymbolsTool);
+    registry.register_tool(ContentsTool);
    registry.register_tool(PathSearchTool);
    registry.register_tool(ReadFileTool);
    registry.register_tool(RegexSearchTool);
+    registry.register_tool(RenameTool);
    registry.register_tool(ThinkingTool);
    registry.register_tool(FetchTool::new(http_client));
 }
+
+#[cfg(test)]
+mod tests {
+    use http_client::FakeHttpClient;
+
+    use super::*;
+
+    #[gpui::test]
+    fn test_builtin_tool_schema_compatibility(cx: &mut App) {
+        crate::init(
+            Arc::new(http_client::HttpClientWithUrl::new(
+                FakeHttpClient::with_200_response(),
+                "https://zed.dev",
+                None,
+            )),
+            cx,
+        );
+
+        for tool in ToolRegistry::global(cx).tools() {
+            let actual_schema = tool
+                .input_schema(language_model::LanguageModelToolSchemaFormat::JsonSchemaSubset)
+                .unwrap();
+            let mut expected_schema = actual_schema.clone();
+            assistant_tool::adapt_schema_to_format(
+                &mut expected_schema,
+                language_model::LanguageModelToolSchemaFormat::JsonSchemaSubset,
+            )
+            .unwrap();
+
+            let error_message = format!(
+                "Tool schema for `{}` is not compatible with `language_model::LanguageModelToolSchemaFormat::JsonSchemaSubset` (Gemini Models).\n\
+                Are you using `schema::json_schema_for<T>(format)` to generate the schema?",
+                tool.name(),
+            );
+
+            assert_eq!(actual_schema, expected_schema, "{}", error_message)
+        }
+    }
+}
--- a/crates/assistant_tools/src/bash_tool.rs
+++ b/crates/assistant_tools/src/bash_tool.rs
@@ -1,216 +0,0 @@
-use crate::schema::json_schema_for;
-use anyhow::{Context as _, Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
-use futures::io::BufReader;
-use futures::{AsyncBufReadExt, AsyncReadExt};
-use gpui::{App, Entity, Task};
-use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
-use project::Project;
-use schemars::JsonSchema;
-use serde::{Deserialize, Serialize};
-use std::path::Path;
-use std::sync::Arc;
-use ui::IconName;
-use util::command::new_smol_command;
-use util::markdown::MarkdownString;
-
-#[derive(Debug, Serialize, Deserialize, JsonSchema)]
-pub struct BashToolInput {
-    /// The bash one-liner command to execute.
-    command: String,
-    /// Working directory for the command. This must be one of the root directories of the project.
-    cd: String,
-}
-
-pub struct BashTool;
-
-impl Tool for BashTool {
-    fn name(&self) -> String {
-        "bash".to_string()
-    }
-
-    fn needs_confirmation(&self) -> bool {
-        true
-    }
-
-    fn description(&self) -> String {
-        include_str!("./bash_tool/description.md").to_string()
-    }
-
-    fn icon(&self) -> IconName {
-        IconName::Terminal
-    }
-
-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
-        json_schema_for::<BashToolInput>(format)
-    }
-
-    fn ui_text(&self, input: &serde_json::Value) -> String {
-        match serde_json::from_value::<BashToolInput>(input.clone()) {
-            Ok(input) => {
-                let mut lines = input.command.lines();
-                let first_line = lines.next().unwrap_or_default();
-                let remaining_line_count = lines.count();
-                match remaining_line_count {
-                    0 => MarkdownString::inline_code(&first_line).0,
-                    1 => {
-                        MarkdownString::inline_code(&format!(
-                            "{} - {} more line",
-                            first_line, remaining_line_count
-                        ))
-                        .0
-                    }
-                    n => {
-                        MarkdownString::inline_code(&format!("{} - {} more lines", first_line, n)).0
-                    }
-                }
-            }
-            Err(_) => "Run bash command".to_string(),
-        }
-    }
-
-    fn run(
-        self: Arc<Self>,
-        input: serde_json::Value,
-        _messages: &[LanguageModelRequestMessage],
-        project: Entity<Project>,
-        _action_log: Entity<ActionLog>,
-        cx: &mut App,
-    ) -> Task<Result<String>> {
-        let input: BashToolInput = match serde_json::from_value(input) {
-            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
-        };
-
-        let project = project.read(cx);
-        let input_path = Path::new(&input.cd);
-        let working_dir = if input.cd == "." {
-            // Accept "." as meaning "the one worktree" if we only have one worktree.
-            let mut worktrees = project.worktrees(cx);
-
-            let only_worktree = match worktrees.next() {
-                Some(worktree) => worktree,
-                None => return Task::ready(Err(anyhow!("No worktrees found in the project"))),
-            };
-
-            if worktrees.next().is_some() {
-                return Task::ready(Err(anyhow!(
-                    "'.' is ambiguous in multi-root workspaces. Please specify a root directory explicitly."
-                )));
-            }
-
-            only_worktree.read(cx).abs_path()
-        } else if input_path.is_absolute() {
-            // Absolute paths are allowed, but only if they're in one of the project's worktrees.
-            if !project
-                .worktrees(cx)
-                .any(|worktree| input_path.starts_with(&worktree.read(cx).abs_path()))
-            {
-                return Task::ready(Err(anyhow!(
-                    "The absolute path must be within one of the project's worktrees"
-                )));
-            }
-
-            input_path.into()
-        } else {
-            let Some(worktree) = project.worktree_for_root_name(&input.cd, cx) else {
-                return Task::ready(Err(anyhow!(
-                    "`cd` directory {} not found in the project",
-                    &input.cd
-                )));
-            };
-
-            worktree.read(cx).abs_path()
-        };
-
-        cx.spawn(async move |_| {
-            // Add 2>&1 to merge stderr into stdout for proper interleaving.
-            let command = format!("({}) 2>&1", input.command);
-
-            let mut cmd = new_smol_command("bash")
-                .arg("-c")
-                .arg(&command)
-                .current_dir(working_dir)
-                .stdout(std::process::Stdio::piped())
-                .spawn()
-                .context("Failed to execute bash command")?;
-
-            // Capture stdout with a limit
-            let stdout = cmd.stdout.take().unwrap();
-            let mut reader = BufReader::new(stdout);
-
-            const MESSAGE_1: &str = "Command output too long. The first ";
-            const MESSAGE_2: &str = " bytes:\n\n";
-            const ERR_MESSAGE_1: &str = "Command failed with exit code ";
-            const ERR_MESSAGE_2: &str = "\n\n";
-
-            const STDOUT_LIMIT: usize = 8192;
-
-            const LIMIT: usize = STDOUT_LIMIT
-                - (MESSAGE_1.len()
-                    + (STDOUT_LIMIT.ilog10() as usize + 1) // byte count
-                    + MESSAGE_2.len()
-                    + ERR_MESSAGE_1.len()
-                    + 3 // status code
-                    + ERR_MESSAGE_2.len());
-
-            // Read one more byte to determine whether the output was truncated
-            let mut buffer = vec![0; LIMIT + 1];
-            let bytes_read = reader.read(&mut buffer).await?;
-
-            // Repeatedly fill the output reader's buffer without copying it.
-            loop {
-                let skipped_bytes = reader.fill_buf().await?;
-                if skipped_bytes.is_empty() {
-                    break;
-                }
-                let skipped_bytes_len = skipped_bytes.len();
-                reader.consume_unpin(skipped_bytes_len);
-            }
-
-            let output_bytes = &buffer[..bytes_read];
-
-            // Let the process continue running
-            let status = cmd.status().await.context("Failed to get command status")?;
-
-            let output_string = if bytes_read > LIMIT {
-                // Valid to find `\n` in UTF-8 since 0-127 ASCII characters are not used in
-                // multi-byte characters.
-                let last_line_ix = output_bytes.iter().rposition(|b| *b == b'\n');
-                let output_string = String::from_utf8_lossy(
-                    &output_bytes[..last_line_ix.unwrap_or(output_bytes.len())],
-                );
-
-                format!(
-                    "{}{}{}{}",
-                    MESSAGE_1,
-                    output_string.len(),
-                    MESSAGE_2,
-                    output_string
-                )
-            } else {
-                String::from_utf8_lossy(&output_bytes).into()
-            };
-
-            let output_with_status = if status.success() {
-                if output_string.is_empty() {
-                    "Command executed successfully.".to_string()
-                } else {
-                    output_string.to_string()
-                }
-            } else {
-                format!(
-                    "{}{}{}{}",
-                    ERR_MESSAGE_1,
-                    status.code().unwrap_or(-1),
-                    ERR_MESSAGE_2,
-                    output_string,
-                )
-            };
-
-            debug_assert!(output_with_status.len() <= STDOUT_LIMIT);
-
-            Ok(output_with_status)
-        })
-    }
-}
--- a/crates/assistant_tools/src/bash_tool/description.md
+++ b/crates/assistant_tools/src/bash_tool/description.md
@@ -1,7 +0,0 @@
-Executes a bash one-liner and returns the combined output.
-
-This tool spawns a bash process, combines stdout and stderr into one interleaved stream as they are produced (preserving the order of writes), and captures that stream into a string which is returned.
-
-Make sure you use the `cd` parameter to navigate to one of the root directories of the project. NEVER do it as part of the `command` itself, otherwise it will error.
-
-Remember that each invocation of this tool will spawn a new bash process, so you can't rely on any state from previous invocations.
--- a/crates/assistant_tools/src/batch_tool.rs
+++ b/crates/assistant_tools/src/batch_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool, ToolWorkingSet};
+use assistant_tool::{ActionLog, Tool, ToolResult, ToolWorkingSet};
 use futures::future::join_all;
 use gpui::{App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -151,8 +151,17 @@ impl Tool for BatchTool {
        "batch_tool".into()
    }

-    fn needs_confirmation(&self) -> bool {
-        true
+    fn needs_confirmation(&self, input: &serde_json::Value, cx: &App) -> bool {
+        serde_json::from_value::<BatchToolInput>(input.clone())
+            .map(|input| {
+                let working_set = ToolWorkingSet::default();
+                input.invocations.iter().any(|invocation| {
+                    working_set
+                        .tool(&invocation.name, cx)
+                        .map_or(false, |tool| tool.needs_confirmation(&invocation.input, cx))
+                })
+            })
+            .unwrap_or(false)
    }

    fn description(&self) -> String {
@@ -163,7 +172,7 @@ impl Tool for BatchTool {
        IconName::Cog
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<BatchToolInput>(format)
    }

@@ -210,14 +219,14 @@ impl Tool for BatchTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<BatchToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        if input.invocations.is_empty() {
-            return Task::ready(Err(anyhow!("No tool invocations provided")));
+            return Task::ready(Err(anyhow!("No tool invocations provided"))).into();
        }

        let run_tools_concurrently = input.run_tools_concurrently;
@@ -248,11 +257,11 @@ impl Tool for BatchTool {
                    let project = project.clone();
                    let action_log = action_log.clone();
                    let messages = messages.clone();
-                    let task = cx
+                    let tool_result = cx
                        .update(|cx| tool.run(invocation.input, &messages, project, action_log, cx))
                        .map_err(|err| anyhow!("Failed to start tool '{}': {}", tool_name, err))?;

-                    tasks.push(task);
+                    tasks.push(tool_result.output);
                }

                Ok((tasks, tool_names))
@@ -297,5 +306,6 @@ impl Tool for BatchTool {

            Ok(formatted_results.trim().to_string())
        })
+        .into()
    }
 }
--- a/crates/assistant_tools/src/code_action_tool.rs
+++ b/crates/assistant_tools/src/code_action_tool.rs
@@ -0,0 +1,387 @@
+use anyhow::{Context as _, Result, anyhow};
+use assistant_tool::{ActionLog, Tool, ToolResult};
+use gpui::{App, Entity, Task};
+use language::{self, Anchor, Buffer, ToPointUtf16};
+use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
+use project::{self, LspAction, Project};
+use regex::Regex;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use std::{ops::Range, sync::Arc};
+use ui::IconName;
+
+use crate::schema::json_schema_for;
+
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
+pub struct CodeActionToolInput {
+    /// The relative path to the file containing the text range.
+    ///
+    /// WARNING: you MUST start this path with one of the project's root directories.
+    pub path: String,
+
+    /// The specific code action to execute.
+    ///
+    /// If this field is provided, the tool will execute the specified action.
+    /// If omitted, the tool will list all available code actions for the text range.
+    ///
+    /// Here are some actions that are commonly supported (but may not be for this particular
+    /// text range; you can omit this field to list all the actions, if you want to know
+    /// what your options are, or you can just try an action and if it fails I'll tell you
+    /// what the available actions were instead):
+    /// - "quickfix.all" - applies all available quick fixes in the range
+    /// - "source.organizeImports" - sorts and cleans up import statements
+    /// - "source.fixAll" - applies all available auto fixes
+    /// - "refactor.extract" - extracts selected code into a new function or variable
+    /// - "refactor.inline" - inlines a variable by replacing references with its value
+    /// - "refactor.rewrite" - general code rewriting operations
+    /// - "source.addMissingImports" - adds imports for references that lack them
+    /// - "source.removeUnusedImports" - removes imports that aren't being used
+    /// - "source.implementInterface" - generates methods required by an interface/trait
+    /// - "source.generateAccessors" - creates getter/setter methods
+    /// - "source.convertToAsyncFunction" - converts callback-style code to async/await
+    ///
+    /// Also, there is a special case: if you specify exactly "textDocument/rename" as the action,
+    /// then this will rename the symbol to whatever string you specified for the `arguments` field.
+    pub action: Option<String>,
+
+    /// Optional arguments to pass to the code action.
+    ///
+    /// For rename operations (when action="textDocument/rename"), this should contain the new name.
+    /// For other code actions, these arguments may be passed to the language server.
+    pub arguments: Option<serde_json::Value>,
+
+    /// The text that comes immediately before the text range in the file.
+    pub context_before_range: String,
+
+    /// The text range. This text must appear in the file right between `context_before_range`
+    /// and `context_after_range`.
+    ///
+    /// The file must contain exactly one occurrence of `context_before_range` followed by
+    /// `text_range` followed by `context_after_range`. If the file contains zero occurrences,
+    /// or if it contains more than one occurrence, the tool will fail, so it is absolutely
+    /// critical that you verify ahead of time that the string is unique. You can search
+    /// the file's contents to verify this ahead of time.
+    ///
+    /// To make the string more likely to be unique, include a minimum of 1 line of context
+    /// before the text range, as well as a minimum of 1 line of context after the text range.
+    /// If these lines of context are not enough to obtain a string that appears only once
+    /// in the file, then double the number of context lines until the string becomes unique.
+    /// (Start with 1 line before and 1 line after though, because too much context is
+    /// needlessly costly.)
+    ///
+    /// Do not alter the context lines of code in any way, and make sure to preserve all
+    /// whitespace and indentation for all lines of code. The combined string must be exactly
+    /// as it appears in the file, or else this tool call will fail.
+    pub text_range: String,
+
+    /// The text that comes immediately after the text range in the file.
+    pub context_after_range: String,
+}
+
+pub struct CodeActionTool;
+
+impl Tool for CodeActionTool {
+    fn name(&self) -> String {
+        "code_actions".into()
+    }
+
+    fn needs_confirmation(&self, _input: &serde_json::Value, _cx: &App) -> bool {
+        false
+    }
+
+    fn description(&self) -> String {
+        include_str!("./code_action_tool/description.md").into()
+    }
+
+    fn icon(&self) -> IconName {
+        IconName::Wand
+    }
+
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
+        json_schema_for::<CodeActionToolInput>(format)
+    }
+
+    fn ui_text(&self, input: &serde_json::Value) -> String {
+        match serde_json::from_value::<CodeActionToolInput>(input.clone()) {
+            Ok(input) => {
+                if let Some(action) = &input.action {
+                    if action == "textDocument/rename" {
+                        let new_name = match &input.arguments {
+                            Some(serde_json::Value::String(new_name)) => new_name.clone(),
+                            Some(value) => {
+                                if let Ok(new_name) =
+                                    serde_json::from_value::<String>(value.clone())
+                                {
+                                    new_name
+                                } else {
+                                    "invalid name".to_string()
+                                }
+                            }
+                            None => "missing name".to_string(),
+                        };
+                        format!("Rename '{}' to '{}'", input.text_range, new_name)
+                    } else {
+                        format!(
+                            "Execute code action '{}' for '{}'",
+                            action, input.text_range
+                        )
+                    }
+                } else {
+                    format!("List available code actions for '{}'", input.text_range)
+                }
+            }
+            Err(_) => "Perform code action".to_string(),
+        }
+    }
+
+    fn run(
+        self: Arc<Self>,
+        input: serde_json::Value,
+        _messages: &[LanguageModelRequestMessage],
+        project: Entity<Project>,
+        action_log: Entity<ActionLog>,
+        cx: &mut App,
+    ) -> ToolResult {
+        let input = match serde_json::from_value::<CodeActionToolInput>(input) {
+            Ok(input) => input,
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
+        };
+
+        cx.spawn(async move |cx| {
+            let buffer = {
+                let project_path = project.read_with(cx, |project, cx| {
+                    project
+                        .find_project_path(&input.path, cx)
+                        .context("Path not found in project")
+                })??;
+
+                project.update(cx, |project, cx| project.open_buffer(project_path, cx))?.await?
+            };
+
+            action_log.update(cx, |action_log, cx| {
+                action_log.buffer_read(buffer.clone(), cx);
+            })?;
+
+            let range = {
+                let Some(range) = buffer.read_with(cx, |buffer, _cx| {
+                    find_text_range(&buffer, &input.context_before_range, &input.text_range, &input.context_after_range)
+                })? else {
+                    return Err(anyhow!(
+                        "Failed to locate the text specified by context_before_range, text_range, and context_after_range. Make sure context_before_range and context_after_range each match exactly once in the file."
+                    ));
+                };
+
+                range
+            };
+
+            if let Some(action_type) = &input.action {
+                // Special-case the `rename` operation
+                let response = if action_type == "textDocument/rename" {
+                    let Some(new_name) = input.arguments.and_then(|args| serde_json::from_value::<String>(args).ok()) else {
+                        return Err(anyhow!("For rename operations, 'arguments' must be a string containing the new name"));
+                    };
+
+                    let position = buffer.read_with(cx, |buffer, _| {
+                        range.start.to_point_utf16(&buffer.snapshot())
+                    })?;
+
+                    project
+                        .update(cx, |project, cx| {
+                            project.perform_rename(buffer.clone(), position, new_name.clone(), cx)
+                        })?
+                        .await?;
+
+                    format!("Renamed '{}' to '{}'", input.text_range, new_name)
+                } else {
+                    // Get code actions for the range
+                    let actions = project
+                        .update(cx, |project, cx| {
+                            project.code_actions(&buffer, range.clone(), None, cx)
+                        })?
+                        .await?;
+
+                    if actions.is_empty() {
+                        return Err(anyhow!("No code actions available for this range"));
+                    }
+
+                    // Find all matching actions
+                    let regex = match Regex::new(action_type) {
+                        Ok(regex) => regex,
+                        Err(err) => return Err(anyhow!("Invalid regex pattern: {}", err)),
+                    };
+                    let mut matching_actions = actions
+                        .into_iter()
+                        .filter(|action| { regex.is_match(action.lsp_action.title()) });
+
+                    let Some(action) = matching_actions.next() else {
+                        return Err(anyhow!("No code actions match the pattern: {}", action_type));
+                    };
+
+                    // There should have been exactly one matching action.
+                    if let Some(second) = matching_actions.next() {
+                        let mut all_matches = vec![action, second];
+
+                        all_matches.extend(matching_actions);
+
+                        return Err(anyhow!(
+                            "Pattern '{}' matches multiple code actions: {}",
+                            action_type,
+                            all_matches.into_iter().map(|action| action.lsp_action.title().to_string()).collect::<Vec<_>>().join(", ")
+                        ));
+                    }
+
+                    let title = action.lsp_action.title().to_string();
+
+                    project
+                        .update(cx, |project, cx| {
+                            project.apply_code_action(buffer.clone(), action, true, cx)
+                        })?
+                        .await?;
+
+                    format!("Completed code action: {}", title)
+                };
+
+                project
+                    .update(cx, |project, cx| project.save_buffer(buffer.clone(), cx))?
+                    .await?;
+
+                action_log.update(cx, |log, cx| {
+                    log.buffer_edited(buffer.clone(), cx)
+                })?;
+
+                Ok(response)
+            } else {
+                // No action specified, so list the available ones.
+                let (position_start, position_end) = buffer.read_with(cx, |buffer, _| {
+                    let snapshot = buffer.snapshot();
+                    (
+                        range.start.to_point_utf16(&snapshot),
+                        range.end.to_point_utf16(&snapshot)
+                    )
+                })?;
+
+                // Convert position to display coordinates (1-based)
+                let position_start_display = language::Point {
+                    row: position_start.row + 1,
+                    column: position_start.column + 1,
+                };
+
+                let position_end_display = language::Point {
+                    row: position_end.row + 1,
+                    column: position_end.column + 1,
+                };
+
+                // Get code actions for the range
+                let actions = project
+                    .update(cx, |project, cx| {
+                        project.code_actions(&buffer, range.clone(), None, cx)
+                    })?
+                    .await?;
+
+                let mut response = format!(
+                    "Available code actions for text range '{}' at position {}:{} to {}:{} (UTF-16 coordinates):\n\n",
+                    input.text_range,
+                    position_start_display.row, position_start_display.column,
+                    position_end_display.row, position_end_display.column
+                );
+
+                if actions.is_empty() {
+                    response.push_str("No code actions available for this range.");
+                } else {
+                    for (i, action) in actions.iter().enumerate() {
+                        let title = match &action.lsp_action {
+                            LspAction::Action(code_action) => code_action.title.as_str(),
+                            LspAction::Command(command) => command.title.as_str(),
+                            LspAction::CodeLens(code_lens) => {
+                                if let Some(cmd) = &code_lens.command {
+                                    cmd.title.as_str()
+                                } else {
+                                    "Unknown code lens"
+                                }
+                            },
+                        };
+
+                        let kind = match &action.lsp_action {
+                            LspAction::Action(code_action) => {
+                                if let Some(kind) = &code_action.kind {
+                                    kind.as_str()
+                                } else {
+                                    "unknown"
+                                }
+                            },
+                            LspAction::Command(_) => "command",
+                            LspAction::CodeLens(_) => "code_lens",
+                        };
+
+                        response.push_str(&format!("{}. {title} ({kind})\n", i + 1));
+                    }
+                }
+
+                Ok(response)
+            }
+        }).into()
+    }
+}
+
+/// Finds the range of the text in the buffer, if it appears between context_before_range
+/// and context_after_range, and if that combined string has one unique result in the buffer.
+///
+/// If an exact match fails, it tries adding a newline to the end of context_before_range and
+/// to the beginning of context_after_range to accommodate line-based context matching.
+fn find_text_range(
+    buffer: &Buffer,
+    context_before_range: &str,
+    text_range: &str,
+    context_after_range: &str,
+) -> Option<Range<Anchor>> {
+    let snapshot = buffer.snapshot();
+    let text = snapshot.text();
+
+    // First try with exact match
+    let search_string = format!("{context_before_range}{text_range}{context_after_range}");
+    let mut positions = text.match_indices(&search_string);
+    let position_result = positions.next();
+
+    if let Some(position) = position_result {
+        // Check if the matched string is unique
+        if positions.next().is_none() {
+            let range_start = position.0 + context_before_range.len();
+            let range_end = range_start + text_range.len();
+            let range_start_anchor = snapshot.anchor_before(snapshot.offset_to_point(range_start));
+            let range_end_anchor = snapshot.anchor_before(snapshot.offset_to_point(range_end));
+
+            return Some(range_start_anchor..range_end_anchor);
+        }
+    }
+
+    // If exact match fails or is not unique, try with line-based context
+    // Add a newline to the end of before context and beginning of after context
+    let line_based_before = if context_before_range.ends_with('\n') {
+        context_before_range.to_string()
+    } else {
+        format!("{context_before_range}\n")
+    };
+
+    let line_based_after = if context_after_range.starts_with('\n') {
+        context_after_range.to_string()
+    } else {
+        format!("\n{context_after_range}")
+    };
+
+    let line_search_string = format!("{line_based_before}{text_range}{line_based_after}");
+    let mut line_positions = text.match_indices(&line_search_string);
+    let line_position = line_positions.next()?;
+
+    // The line-based search string must also appear exactly once
+    if line_positions.next().is_some() {
+        return None;
+    }
+
+    let line_range_start = line_position.0 + line_based_before.len();
+    let line_range_end = line_range_start + text_range.len();
+    let line_range_start_anchor =
+        snapshot.anchor_before(snapshot.offset_to_point(line_range_start));
+    let line_range_end_anchor = snapshot.anchor_before(snapshot.offset_to_point(line_range_end));
+
+    Some(line_range_start_anchor..line_range_end_anchor)
+}
--- a/crates/assistant_tools/src/code_action_tool/description.md
+++ b/crates/assistant_tools/src/code_action_tool/description.md
@@ -0,0 +1,19 @@
+A tool for applying code actions to specific sections of your code. It uses language servers to provide refactoring capabilities similar to what you'd find in an IDE.
+
+This tool can:
+- List all available code actions for a selected text range
+- Execute a specific code action on that range
+- Rename symbols across your codebase. This tool is the preferred way to rename things, and you should always prefer to rename code symbols using this tool rather than using textual find/replace when both are available.
+
+Use this tool when you want to:
+- Discover what code actions are available for a piece of code
+- Apply automatic fixes and code transformations
+- Rename variables, functions, or other symbols consistently throughout your project
+- Clean up imports, implement interfaces, or perform other language-specific operations
+
+- If unsure what actions are available, call the tool without specifying an action to get a list
+- For common operations, you can directly specify actions like "quickfix.all" or "source.organizeImports"
+- For renaming, use the special "textDocument/rename" action and provide the new name in the arguments field
+- Be specific with your text range and context to ensure the tool identifies the correct code location
+
+The tool will automatically save any changes it makes to your files.
--- a/crates/assistant_tools/src/code_symbols_tool.rs
+++ b/crates/assistant_tools/src/code_symbols_tool.rs
@@ -4,7 +4,7 @@ use std::sync::Arc;

 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use collections::IndexMap;
 use gpui::{App, AsyncApp, Entity, Task};
 use language::{OutlineItem, ParseStatus, Point};
@@ -79,7 +79,7 @@ impl Tool for CodeSymbolsTool {
        "code_symbols".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -91,7 +91,7 @@ impl Tool for CodeSymbolsTool {
        IconName::Code
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<CodeSymbolsInput>(format)
    }

@@ -129,10 +129,10 @@ impl Tool for CodeSymbolsTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<CodeSymbolsInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        let regex = match input.regex {
@@ -141,7 +141,7 @@ impl Tool for CodeSymbolsTool {
                .build()
            {
                Ok(regex) => Some(regex),
-                Err(err) => return Task::ready(Err(anyhow!("Invalid regex: {err}"))),
+                Err(err) => return Task::ready(Err(anyhow!("Invalid regex: {err}"))).into(),
            },
            None => None,
        };
@@ -150,6 +150,7 @@ impl Tool for CodeSymbolsTool {
            Some(path) => file_outline(project, path, action_log, regex, input.offset, cx).await,
            None => project_symbols(project, regex, input.offset, cx).await,
        })
+        .into()
    }
 }

@@ -179,11 +180,9 @@ pub async fn file_outline(

    // Wait until the buffer has been fully parsed, so that we can read its outline.
    let mut parse_status = buffer.read_with(cx, |buffer, _| buffer.parse_status())?;
-    while parse_status
-        .recv()
-        .await
-        .map_or(false, |status| status != ParseStatus::Idle)
-    {}
+    while *parse_status.borrow() != ParseStatus::Idle {
+        parse_status.changed().await?;
+    }

    let snapshot = buffer.read_with(cx, |buffer, _| buffer.snapshot())?;
    let Some(outline) = snapshot.outline(None) else {
--- a/crates/assistant_tools/src/contents_tool.rs
+++ b/crates/assistant_tools/src/contents_tool.rs
@@ -0,0 +1,239 @@
+use std::sync::Arc;
+
+use crate::{code_symbols_tool::file_outline, schema::json_schema_for};
+use anyhow::{Result, anyhow};
+use assistant_tool::{ActionLog, Tool, ToolResult};
+use gpui::{App, Entity, Task};
+use itertools::Itertools;
+use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
+use project::Project;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use std::{fmt::Write, path::Path};
+use ui::IconName;
+use util::markdown::MarkdownString;
+
+/// If the model requests to read a file whose size exceeds this, then
+/// the tool will return the file's symbol outline instead of its contents,
+/// and suggest trying again using line ranges from the outline.
+const MAX_FILE_SIZE_TO_READ: usize = 16384;
+
+/// If the model requests to list the entries in a directory with more
+/// entries than this, then the tool will return a subset of the entries
+/// and suggest trying again.
+const MAX_DIR_ENTRIES: usize = 1024;
+
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
+pub struct ContentsToolInput {
+    /// The relative path of the file or directory to access.
+    ///
+    /// This path should never be absolute, and the first component
+    /// of the path should always be a root directory in a project.
+    ///
+    /// <example>
+    /// If the project has the following root directories:
+    ///
+    /// - directory1
+    /// - directory2
+    ///
+    /// If you want to access `file.txt` in `directory1`, you should use the path `directory1/file.txt`.
+    /// If you want to list contents in the directory `directory2/subfolder`, you should use the path `directory2/subfolder`.
+    /// </example>
+    pub path: String,
+
+    /// Optional position (1-based index) to start reading on, if you want to read a subset of the contents.
+    /// When reading a file, this refers to a line number in the file (e.g. 1 is the first line).
+    /// When reading a directory, this refers to the number of the directory entry (e.g. 1 is the first entry).
+    ///
+    /// Defaults to 1.
+    pub start: Option<u32>,
+
+    /// Optional position (1-based index) to end reading on, if you want to read a subset of the contents.
+    /// When reading a file, this refers to a line number in the file (e.g. 1 is the first line).
+    /// When reading a directory, this refers to the number of the directory entry (e.g. 1 is the first entry).
+    ///
+    /// Defaults to reading until the end of the file or directory.
+    pub end: Option<u32>,
+}
+
+pub struct ContentsTool;
+
+impl Tool for ContentsTool {
+    fn name(&self) -> String {
+        "contents".into()
+    }
+
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
+        false
+    }
+
+    fn description(&self) -> String {
+        include_str!("./contents_tool/description.md").into()
+    }
+
+    fn icon(&self) -> IconName {
+        IconName::FileSearch
+    }
+
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
+        json_schema_for::<ContentsToolInput>(format)
+    }
+
+    fn ui_text(&self, input: &serde_json::Value) -> String {
+        match serde_json::from_value::<ContentsToolInput>(input.clone()) {
+            Ok(input) => {
+                let path = MarkdownString::inline_code(&input.path);
+
+                match (input.start, input.end) {
+                    (Some(start), None) => format!("Read {path} (from line {start})"),
+                    (Some(start), Some(end)) => {
+                        format!("Read {path} (lines {start}-{end})")
+                    }
+                    _ => format!("Read {path}"),
+                }
+            }
+            Err(_) => "Read file or directory".to_string(),
+        }
+    }
+
+    fn run(
+        self: Arc<Self>,
+        input: serde_json::Value,
+        _messages: &[LanguageModelRequestMessage],
+        project: Entity<Project>,
+        action_log: Entity<ActionLog>,
+        cx: &mut App,
+    ) -> ToolResult {
+        let input = match serde_json::from_value::<ContentsToolInput>(input) {
+            Ok(input) => input,
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
+        };
+
+        // Sometimes models will return these even though we tell it to give a path and not a glob.
+        // When this happens, just list the root worktree directories.
+        if matches!(input.path.as_str(), "." | "" | "./" | "*") {
+            let output = project
+                .read(cx)
+                .worktrees(cx)
+                .filter_map(|worktree| {
+                    worktree.read(cx).root_entry().and_then(|entry| {
+                        if entry.is_dir() {
+                            entry.path.to_str()
+                        } else {
+                            None
+                        }
+                    })
+                })
+                .collect::<Vec<_>>()
+                .join("\n");
+
+            return Task::ready(Ok(output)).into();
+        }
+
+        let Some(project_path) = project.read(cx).find_project_path(&input.path, cx) else {
+            return Task::ready(Err(anyhow!("Path {} not found in project", &input.path))).into();
+        };
+
+        let Some(worktree) = project
+            .read(cx)
+            .worktree_for_id(project_path.worktree_id, cx)
+        else {
+            return Task::ready(Err(anyhow!("Worktree not found"))).into();
+        };
+        let worktree = worktree.read(cx);
+
+        let Some(entry) = worktree.entry_for_path(&project_path.path) else {
+            return Task::ready(Err(anyhow!("Path not found: {}", input.path))).into();
+        };
+
+        // If it's a directory, list its contents
+        if entry.is_dir() {
+            let mut output = String::new();
+            let start_index = input
+                .start
+                .map(|line| (line as usize).saturating_sub(1))
+                .unwrap_or(0);
+            let end_index = input
+                .end
+                .map(|line| (line as usize).saturating_sub(1))
+                .unwrap_or(MAX_DIR_ENTRIES);
+            let mut skipped = 0;
+
+            for (index, entry) in worktree.child_entries(&project_path.path).enumerate() {
+                if index >= start_index && index <= end_index {
+                    writeln!(
+                        output,
+                        "{}",
+                        Path::new(worktree.root_name()).join(&entry.path).display(),
+                    )
+                    .unwrap();
+                } else {
+                    skipped += 1;
+                }
+            }
+
+            if output.is_empty() {
+                output.push_str(&input.path);
+                output.push_str(" is empty.");
+            }
+
+            if skipped > 0 {
+                write!(
+                    output,
+                    "\n\nNote: Skipped {skipped} entries. Adjust start and end to see other entries.",
+                ).ok();
+            }
+
+            Task::ready(Ok(output)).into()
+        } else {
+            // It's a file, so read its contents
+            let file_path = input.path.clone();
+            cx.spawn(async move |cx| {
+                let buffer = cx
+                    .update(|cx| {
+                        project.update(cx, |project, cx| project.open_buffer(project_path, cx))
+                    })?
+                    .await?;
+
+                if input.start.is_some() || input.end.is_some() {
+                    let result = buffer.read_with(cx, |buffer, _cx| {
+                        let text = buffer.text();
+                        let start = input.start.unwrap_or(1);
+                        let lines = text.split('\n').skip(start as usize - 1);
+                        if let Some(end) = input.end {
+                            let count = end.saturating_sub(start).max(1); // Ensure at least 1 line
+                            Itertools::intersperse(lines.take(count as usize), "\n").collect()
+                        } else {
+                            Itertools::intersperse(lines, "\n").collect()
+                        }
+                    })?;
+
+                    action_log.update(cx, |log, cx| {
+                        log.buffer_read(buffer, cx);
+                    })?;
+
+                    Ok(result)
+                } else {
+                    // No line ranges specified, so check file size to see if it's too big.
+                    let file_size = buffer.read_with(cx, |buffer, _cx| buffer.text().len())?;
+
+                    if file_size <= MAX_FILE_SIZE_TO_READ {
+                        let result = buffer.read_with(cx, |buffer, _cx| buffer.text())?;
+
+                        action_log.update(cx, |log, cx| {
+                            log.buffer_read(buffer, cx);
+                        })?;
+
+                        Ok(result)
+                    } else {
+                        // File is too big, so return its outline and a suggestion to
+                        // read again with a line number range specified.
+                        let outline = file_outline(project, file_path, action_log, None, 0, cx).await?;
+
+                        Ok(format!("This file was too big to read all at once. Here is an outline of its symbols:\n\n{outline}\n\nUsing the line numbers in this outline, you can call this tool again while specifying the start and end fields to see the implementations of symbols in the outline."))
+                    }
+                }
+            }).into()
+        }
+    }
+}
--- a/crates/assistant_tools/src/contents_tool/description.md
+++ b/crates/assistant_tools/src/contents_tool/description.md
@@ -0,0 +1,9 @@
+Reads the contents of a path on the filesystem.
+
+If the path is a directory, this lists all files and directories within that path.
+If the path is a file, this returns the file's contents.
+
+When reading a file, if the file is too big and no line range is specified, an outline of the file's code symbols is listed instead, which can be used to request specific line ranges in a subsequent call.
+
+Similarly, if a directory has too many entries to show at once, a subset of entries will be shown,
+and subsequent requests can use starting and ending line numbers to get other subsets.
--- a/crates/assistant_tools/src/copy_path_tool.rs
+++ b/crates/assistant_tools/src/copy_path_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, AppContext, Entity, Task};
 use language_model::LanguageModelRequestMessage;
 use language_model::LanguageModelToolSchemaFormat;
@@ -43,7 +43,7 @@ impl Tool for CopyPathTool {
        "copy_path".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        true
    }

@@ -55,7 +55,7 @@ impl Tool for CopyPathTool {
        IconName::Clipboard
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<CopyPathToolInput>(format)
    }

@@ -77,10 +77,10 @@ impl Tool for CopyPathTool {
        project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<CopyPathToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };
        let copy_task = project.update(cx, |project, cx| {
            match project
@@ -117,5 +117,6 @@ impl Tool for CopyPathTool {
                )),
            }
        })
+        .into()
    }
 }
--- a/crates/assistant_tools/src/create_directory_tool.rs
+++ b/crates/assistant_tools/src/create_directory_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, Entity, Task};
 use language_model::LanguageModelRequestMessage;
 use language_model::LanguageModelToolSchemaFormat;
@@ -33,7 +33,7 @@ impl Tool for CreateDirectoryTool {
        "create_directory".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        true
    }

@@ -45,7 +45,7 @@ impl Tool for CreateDirectoryTool {
        IconName::Folder
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<CreateDirectoryToolInput>(format)
    }

@@ -68,14 +68,16 @@ impl Tool for CreateDirectoryTool {
        project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<CreateDirectoryToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };
        let project_path = match project.read(cx).find_project_path(&input.path, cx) {
            Some(project_path) => project_path,
-            None => return Task::ready(Err(anyhow!("Path to create was outside the project"))),
+            None => {
+                return Task::ready(Err(anyhow!("Path to create was outside the project"))).into();
+            }
        };
        let destination_path: Arc<str> = input.path.as_str().into();

@@ -89,5 +91,6 @@ impl Tool for CreateDirectoryTool {

            Ok(format!("Created directory {destination_path}"))
        })
+        .into()
    }
 }
--- a/crates/assistant_tools/src/create_file_tool.rs
+++ b/crates/assistant_tools/src/create_file_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, Entity, Task};
 use language_model::LanguageModelRequestMessage;
 use language_model::LanguageModelToolSchemaFormat;
@@ -40,7 +40,7 @@ impl Tool for CreateFileTool {
        "create_file".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -52,7 +52,7 @@ impl Tool for CreateFileTool {
        IconName::FileCreate
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<CreateFileToolInput>(format)
    }

@@ -73,14 +73,16 @@ impl Tool for CreateFileTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<CreateFileToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };
        let project_path = match project.read(cx).find_project_path(&input.path, cx) {
            Some(project_path) => project_path,
-            None => return Task::ready(Err(anyhow!("Path to create was outside the project"))),
+            None => {
+                return Task::ready(Err(anyhow!("Path to create was outside the project"))).into();
+            }
        };
        let contents: Arc<str> = input.contents.as_str().into();
        let destination_path: Arc<str> = input.path.as_str().into();
@@ -106,5 +108,6 @@ impl Tool for CreateFileTool {

            Ok(format!("Created file {destination_path}"))
        })
+        .into()
    }
 }
--- a/crates/assistant_tools/src/delete_path_tool.rs
+++ b/crates/assistant_tools/src/delete_path_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use futures::{SinkExt, StreamExt, channel::mpsc};
 use gpui::{App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -33,7 +33,7 @@ impl Tool for DeletePathTool {
        "delete_path".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        true
    }

@@ -45,7 +45,7 @@ impl Tool for DeletePathTool {
        IconName::FileDelete
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<DeletePathToolInput>(format)
    }

@@ -63,15 +63,16 @@ impl Tool for DeletePathTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let path_str = match serde_json::from_value::<DeletePathToolInput>(input) {
            Ok(input) => input.path,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };
        let Some(project_path) = project.read(cx).find_project_path(&path_str, cx) else {
            return Task::ready(Err(anyhow!(
                "Couldn't delete {path_str} because that path isn't in this project."
-            )));
+            )))
+            .into();
        };

        let Some(worktree) = project
@@ -80,7 +81,8 @@ impl Tool for DeletePathTool {
        else {
            return Task::ready(Err(anyhow!(
                "Couldn't delete {path_str} because that path isn't in this project."
-            )));
+            )))
+            .into();
        };

        let worktree_snapshot = worktree.read(cx).snapshot();
@@ -132,5 +134,6 @@ impl Tool for DeletePathTool {
                )),
            }
        })
+        .into()
    }
 }
--- a/crates/assistant_tools/src/diagnostics_tool.rs
+++ b/crates/assistant_tools/src/diagnostics_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, Entity, Task};
 use language::{DiagnosticSeverity, OffsetRangeExt};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -46,7 +46,7 @@ impl Tool for DiagnosticsTool {
        "diagnostics".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -58,7 +58,7 @@ impl Tool for DiagnosticsTool {
        IconName::XCircle
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<DiagnosticsToolInput>(format)
    }

@@ -83,14 +83,15 @@ impl Tool for DiagnosticsTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        match serde_json::from_value::<DiagnosticsToolInput>(input)
            .ok()
            .and_then(|input| input.path)
        {
            Some(path) if !path.is_empty() => {
                let Some(project_path) = project.read(cx).find_project_path(&path, cx) else {
-                    return Task::ready(Err(anyhow!("Could not find path {path} in project",)));
+                    return Task::ready(Err(anyhow!("Could not find path {path} in project",)))
+                        .into();
                };

                let buffer =
@@ -125,6 +126,7 @@ impl Tool for DiagnosticsTool {
                        Ok(output)
                    }
                })
+                .into()
            }
            _ => {
                let project = project.read(cx);
@@ -155,9 +157,10 @@ impl Tool for DiagnosticsTool {
                });

                if has_diagnostics {
-                    Task::ready(Ok(output))
+                    Task::ready(Ok(output)).into()
                } else {
                    Task::ready(Ok("No errors or warnings found in the project.".to_string()))
+                        .into()
                }
            }
        }
--- a/crates/assistant_tools/src/fetch_tool.rs
+++ b/crates/assistant_tools/src/fetch_tool.rs
@@ -4,7 +4,7 @@ use std::sync::Arc;

 use crate::schema::json_schema_for;
 use anyhow::{Context as _, Result, anyhow, bail};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use futures::AsyncReadExt as _;
 use gpui::{App, AppContext as _, Entity, Task};
 use html_to_markdown::{TagHandler, convert_html_to_markdown, markdown};
@@ -116,7 +116,7 @@ impl Tool for FetchTool {
        "fetch".to_string()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        true
    }

@@ -128,7 +128,7 @@ impl Tool for FetchTool {
        IconName::Globe
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<FetchToolInput>(format)
    }

@@ -146,10 +146,10 @@ impl Tool for FetchTool {
        _project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<FetchToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        let text = cx.background_spawn({
@@ -158,13 +158,15 @@ impl Tool for FetchTool {
            async move { Self::build_message(http_client, &url).await }
        });

-        cx.foreground_executor().spawn(async move {
-            let text = text.await?;
-            if text.trim().is_empty() {
-                bail!("no textual content found");
-            }
+        cx.foreground_executor()
+            .spawn(async move {
+                let text = text.await?;
+                if text.trim().is_empty() {
+                    bail!("no textual content found");
+                }

-            Ok(text)
-        })
+                Ok(text)
+            })
+            .into()
    }
 }
--- a/crates/assistant_tools/src/find_replace_file_tool.rs
+++ b/crates/assistant_tools/src/find_replace_file_tool.rs
@@ -1,6 +1,6 @@
 use crate::{replace::replace_with_flexible_indent, schema::json_schema_for};
 use anyhow::{Context as _, Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, AppContext, AsyncApp, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -63,6 +63,16 @@ pub struct FindReplaceFileToolInput {
    /// even one character in this string is different in any way from how it appears
    /// in the file, then the tool call will fail.
    ///
+    /// If you get an error that the `find` string was not found, this means that either
+    /// you made a mistake, or that the file has changed since you last looked at it.
+    /// Either way, when this happens, you should retry doing this tool call until it
+    /// succeeds, up to 3 times. Each time you retry, you should take another look at
+    /// the exact text of the file in question, to make sure that you are searching for
+    /// exactly the right string. Regardless of whether it was because you made a mistake
+    /// or because the file changed since you last looked at it, you should be extra
+    /// careful when retrying in this way. It's a bad experience for the user if
+    /// this `find` string isn't found, so be super careful to get it exactly right!
+    ///
    /// <example>
    /// If a file contains this code:
    ///
@@ -129,7 +139,7 @@ impl Tool for FindReplaceFileTool {
        "find_replace_file".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -141,7 +151,7 @@ impl Tool for FindReplaceFileTool {
        IconName::Pencil
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<FindReplaceFileToolInput>(format)
    }

@@ -159,10 +169,10 @@ impl Tool for FindReplaceFileTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<FindReplaceFileToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        cx.spawn(async move |cx: &mut AsyncApp| {
@@ -253,6 +263,6 @@ impl Tool for FindReplaceFileTool {

            Ok(format!("Edited {}:\n\n```diff\n{}\n```", input.path.display(), diff_str))

-        })
+        }).into()
    }
 }
--- a/crates/assistant_tools/src/find_replace_tool/description.md
+++ b/crates/assistant_tools/src/find_replace_tool/description.md
@@ -1,9 +1,13 @@
 Find one unique part of a file in the project and replace that text with new text.

-This tool is the preferred way to make edits to files. If you have multiple edits to make, including edits across multiple files, then make a plan to respond with a single message containing multiple calls to this tool - one call for each find/replace operation.
+This tool is the preferred way to make edits to files *except* when making a rename. When making a rename specifically, the rename tool must always be used instead.

-You should use this tool when you want to edit a subset of a file's contents, but not the entire file. You should not use this tool when you want to replace the entire contents of a file with completely different contents. You also should not use this tool when you want to move or rename a file. You absolutely must NEVER use this tool to create new files from scratch. If you ever consider using this tool to create a new file from scratch, for any reason, instead you must reconsider and choose a different approach.
+If you have multiple edits to make, including edits across multiple files, then make a plan to respond with a single message containing a batch of calls to this tool - one call for each find/replace operation.
+
+You should only use this tool when you want to edit a subset of a file's contents, but not the entire file. You should not use this tool when you want to replace the entire contents of a file with completely different contents. You also should not use this tool when you want to move or rename a file. You absolutely must NEVER use this tool to create new files from scratch. If you ever consider using this tool to create a new file from scratch, for any reason, instead you must reconsider and choose a different approach.

 DO NOT call this tool until the code to be edited appears in the conversation! You must use another tool to read the file's contents into the conversation, or ask the user to add it to context first.

 Never call this tool with identical "find" and "replace" strings. Instead, stop and think about what you actually want to do.
+
+REMEMBER: You can use this tool after you just used the `create_file` tool. It's better to edit the file you just created than to recreate a new file from scratch.
--- a/crates/assistant_tools/src/list_directory_tool.rs
+++ b/crates/assistant_tools/src/list_directory_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -44,7 +44,7 @@ impl Tool for ListDirectoryTool {
        "list_directory".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -56,7 +56,7 @@ impl Tool for ListDirectoryTool {
        IconName::Folder
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<ListDirectoryToolInput>(format)
    }

@@ -77,10 +77,10 @@ impl Tool for ListDirectoryTool {
        project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<ListDirectoryToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        // Sometimes models will return these even though we tell it to give a path and not a glob.
@@ -101,26 +101,26 @@ impl Tool for ListDirectoryTool {
                .collect::<Vec<_>>()
                .join("\n");

-            return Task::ready(Ok(output));
+            return Task::ready(Ok(output)).into();
        }

        let Some(project_path) = project.read(cx).find_project_path(&input.path, cx) else {
-            return Task::ready(Err(anyhow!("Path {} not found in project", input.path)));
+            return Task::ready(Err(anyhow!("Path {} not found in project", input.path))).into();
        };
        let Some(worktree) = project
            .read(cx)
            .worktree_for_id(project_path.worktree_id, cx)
        else {
-            return Task::ready(Err(anyhow!("Worktree not found")));
+            return Task::ready(Err(anyhow!("Worktree not found"))).into();
        };
        let worktree = worktree.read(cx);

        let Some(entry) = worktree.entry_for_path(&project_path.path) else {
-            return Task::ready(Err(anyhow!("Path not found: {}", input.path)));
+            return Task::ready(Err(anyhow!("Path not found: {}", input.path))).into();
        };

        if !entry.is_dir() {
-            return Task::ready(Err(anyhow!("{} is not a directory.", input.path)));
+            return Task::ready(Err(anyhow!("{} is not a directory.", input.path))).into();
        }

        let mut output = String::new();
@@ -133,8 +133,8 @@ impl Tool for ListDirectoryTool {
            .unwrap();
        }
        if output.is_empty() {
-            return Task::ready(Ok(format!("{} is empty.", input.path)));
+            return Task::ready(Ok(format!("{} is empty.", input.path))).into();
        }
-        Task::ready(Ok(output))
+        Task::ready(Ok(output)).into()
    }
 }
--- a/crates/assistant_tools/src/move_path_tool.rs
+++ b/crates/assistant_tools/src/move_path_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -42,7 +42,7 @@ impl Tool for MovePathTool {
        "move_path".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        true
    }

@@ -54,7 +54,7 @@ impl Tool for MovePathTool {
        IconName::ArrowRightLeft
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<MovePathToolInput>(format)
    }

@@ -90,10 +90,10 @@ impl Tool for MovePathTool {
        project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<MovePathToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };
        let rename_task = project.update(cx, |project, cx| {
            match project
@@ -128,5 +128,6 @@ impl Tool for MovePathTool {
                )),
            }
        })
+        .into()
    }
 }
--- a/crates/assistant_tools/src/now_tool.rs
+++ b/crates/assistant_tools/src/now_tool.rs
@@ -2,7 +2,7 @@ use std::sync::Arc;

 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use chrono::{Local, Utc};
 use gpui::{App, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -33,7 +33,7 @@ impl Tool for NowTool {
        "now".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -45,7 +45,7 @@ impl Tool for NowTool {
        IconName::Info
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<NowToolInput>(format)
    }

@@ -60,10 +60,10 @@ impl Tool for NowTool {
        _project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        _cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input: NowToolInput = match serde_json::from_value(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        let now = match input.timezone {
@@ -72,6 +72,6 @@ impl Tool for NowTool {
        };
        let text = format!("The current datetime is {now}.");

-        Task::ready(Ok(text))
+        Task::ready(Ok(text)).into()
    }
 }
--- a/crates/assistant_tools/src/open_tool.rs
+++ b/crates/assistant_tools/src/open_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Context as _, Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -23,7 +23,7 @@ impl Tool for OpenTool {
        "open".to_string()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        true
    }

@@ -35,7 +35,7 @@ impl Tool for OpenTool {
        IconName::ArrowUpRight
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<OpenToolInput>(format)
    }

@@ -53,10 +53,10 @@ impl Tool for OpenTool {
        _project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input: OpenToolInput = match serde_json::from_value(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        cx.background_spawn(async move {
@@ -64,5 +64,6 @@ impl Tool for OpenTool {

            Ok(format!("Successfully opened {}", input.path_or_url))
        })
+        .into()
    }
 }
--- a/crates/assistant_tools/src/path_search_tool.rs
+++ b/crates/assistant_tools/src/path_search_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -41,7 +41,7 @@ impl Tool for PathSearchTool {
        "path_search".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -53,7 +53,7 @@ impl Tool for PathSearchTool {
        IconName::SearchCode
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<PathSearchToolInput>(format)
    }

@@ -71,10 +71,10 @@ impl Tool for PathSearchTool {
        project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let (offset, glob) = match serde_json::from_value::<PathSearchToolInput>(input) {
            Ok(input) => (input.offset, input.glob),
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        let path_matcher = match PathMatcher::new([
@@ -82,7 +82,7 @@ impl Tool for PathSearchTool {
            if glob.is_empty() { "*" } else { &glob },
        ]) {
            Ok(matcher) => matcher,
-            Err(err) => return Task::ready(Err(anyhow!("Invalid glob: {err}"))),
+            Err(err) => return Task::ready(Err(anyhow!("Invalid glob: {err}"))).into(),
        };
        let snapshots: Vec<Snapshot> = project
            .read(cx)
@@ -136,6 +136,6 @@ impl Tool for PathSearchTool {

                Ok(response)
            }
-        })
+        }).into()
    }
 }
--- a/crates/assistant_tools/src/read_file_tool.rs
+++ b/crates/assistant_tools/src/read_file_tool.rs
@@ -2,7 +2,7 @@ use std::sync::Arc;

 use crate::{code_symbols_tool::file_outline, schema::json_schema_for};
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, Entity, Task};
 use itertools::Itertools;
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -51,7 +51,7 @@ impl Tool for ReadFileTool {
        "read_file".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -63,7 +63,7 @@ impl Tool for ReadFileTool {
        IconName::FileSearch
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<ReadFileToolInput>(format)
    }

@@ -88,14 +88,14 @@ impl Tool for ReadFileTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<ReadFileToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        let Some(project_path) = project.read(cx).find_project_path(&input.path, cx) else {
-            return Task::ready(Err(anyhow!("Path {} not found in project", &input.path,)));
+            return Task::ready(Err(anyhow!("Path {} not found in project", &input.path,))).into();
        };

        let file_path = input.path.clone();
@@ -146,6 +146,6 @@ impl Tool for ReadFileTool {
                    Ok(format!("This file was too big to read all at once. Here is an outline of its symbols:\n\n{outline}\n\nUsing the line numbers in this outline, you can call this tool again while specifying the start_line and end_line fields to see the implementations of symbols in the outline."))
                }
            }
-        })
+        }).into()
    }
 }
--- a/crates/assistant_tools/src/regex_search_tool.rs
+++ b/crates/assistant_tools/src/regex_search_tool.rs
@@ -1,6 +1,6 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use futures::StreamExt;
 use gpui::{App, Entity, Task};
 use language::OffsetRangeExt;
@@ -26,6 +26,10 @@ pub struct RegexSearchToolInput {
    /// When not provided, starts from the beginning.
    #[serde(default)]
    pub offset: u32,
+
+    /// Whether the regex is case-sensitive. Defaults to false (case-insensitive).
+    #[serde(default)]
+    pub case_sensitive: bool,
 }

 impl RegexSearchToolInput {
@@ -44,7 +48,7 @@ impl Tool for RegexSearchTool {
        "regex_search".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -56,7 +60,7 @@ impl Tool for RegexSearchTool {
        IconName::Regex
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<RegexSearchToolInput>(format)
    }

@@ -64,12 +68,17 @@ impl Tool for RegexSearchTool {
        match serde_json::from_value::<RegexSearchToolInput>(input.clone()) {
            Ok(input) => {
                let page = input.page();
-                let regex = MarkdownString::inline_code(&input.regex);
+                let regex_str = MarkdownString::inline_code(&input.regex);
+                let case_info = if input.case_sensitive {
+                    " (case-sensitive)"
+                } else {
+                    ""
+                };

                if page > 1 {
-                    format!("Get page {page} of search results for regex “{regex}”")
+                    format!("Get page {page} of search results for regex {regex_str}{case_info}")
                } else {
-                    format!("Search files for regex “{regex}”")
+                    format!("Search files for regex {regex_str}{case_info}")
                }
            }
            Err(_) => "Search with regex".to_string(),
@@ -83,17 +92,19 @@ impl Tool for RegexSearchTool {
        project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        const CONTEXT_LINES: u32 = 2;

-        let (offset, regex) = match serde_json::from_value::<RegexSearchToolInput>(input) {
-            Ok(input) => (input.offset, input.regex),
-            Err(err) => return Task::ready(Err(anyhow!(err))),
-        };
+        let (offset, regex, case_sensitive) =
+            match serde_json::from_value::<RegexSearchToolInput>(input) {
+                Ok(input) => (input.offset, input.regex, input.case_sensitive),
+                Err(err) => return Task::ready(Err(anyhow!(err))).into(),
+            };

        let query = match SearchQuery::regex(
            &regex,
            false,
+            case_sensitive,
            false,
            false,
            PathMatcher::default(),
@@ -101,7 +112,7 @@ impl Tool for RegexSearchTool {
            None,
        ) {
            Ok(query) => query,
-            Err(error) => return Task::ready(Err(error)),
+            Err(error) => return Task::ready(Err(error)).into(),
        };

        let results = project.update(cx, |project, cx| project.search(query, cx));
@@ -190,6 +201,6 @@ impl Tool for RegexSearchTool {
            } else {
                Ok(format!("Found {matches_found} matches:\n{output}"))
            }
-        })
+        }).into()
    }
 }
--- a/crates/assistant_tools/src/rename_tool.rs
+++ b/crates/assistant_tools/src/rename_tool.rs
@@ -0,0 +1,203 @@
+use anyhow::{Context as _, Result, anyhow};
+use assistant_tool::{ActionLog, Tool, ToolResult};
+use gpui::{App, Entity, Task};
+use language::{self, Buffer, ToPointUtf16};
+use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
+use project::Project;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use std::sync::Arc;
+use ui::IconName;
+
+use crate::schema::json_schema_for;
+
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
+pub struct RenameToolInput {
+    /// The relative path to the file containing the symbol to rename.
+    ///
+    /// WARNING: you MUST start this path with one of the project's root directories.
+    pub path: String,
+
+    /// The new name to give to the symbol.
+    pub new_name: String,
+
+    /// The text that comes immediately before the symbol in the file.
+    pub context_before_symbol: String,
+
+    /// The symbol to rename. This text must appear in the file right between
+    /// `context_before_symbol` and `context_after_symbol`.
+    ///
+    /// The file must contain exactly one occurrence of `context_before_symbol` followed by
+    /// `symbol` followed by `context_after_symbol`. If the file contains zero occurrences,
+    /// or if it contains more than one occurrence, the tool will fail, so it is absolutely
+    /// critical that you verify ahead of time that the string is unique. You can search
+    /// the file's contents to verify this ahead of time.
+    ///
+    /// To make the string more likely to be unique, include a minimum of 1 line of context
+    /// before the symbol, as well as a minimum of 1 line of context after the symbol.
+    /// If these lines of context are not enough to obtain a string that appears only once
+    /// in the file, then double the number of context lines until the string becomes unique.
+    /// (Start with 1 line before and 1 line after though, because too much context is
+    /// needlessly costly.)
+    ///
+    /// Do not alter the context lines of code in any way, and make sure to preserve all
+    /// whitespace and indentation for all lines of code. The combined string must be exactly
+    /// as it appears in the file, or else this tool call will fail.
+    pub symbol: String,
+
+    /// The text that comes immediately after the symbol in the file.
+    pub context_after_symbol: String,
+}
+
+pub struct RenameTool;
+
+impl Tool for RenameTool {
+    fn name(&self) -> String {
+        "rename".into()
+    }
+
+    fn needs_confirmation(&self, _input: &serde_json::Value, _cx: &App) -> bool {
+        false
+    }
+
+    fn description(&self) -> String {
+        include_str!("./rename_tool/description.md").into()
+    }
+
+    fn icon(&self) -> IconName {
+        IconName::Pencil
+    }
+
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
+        json_schema_for::<RenameToolInput>(format)
+    }
+
+    fn ui_text(&self, input: &serde_json::Value) -> String {
+        match serde_json::from_value::<RenameToolInput>(input.clone()) {
+            Ok(input) => {
+                format!("Rename '{}' to '{}'", input.symbol, input.new_name)
+            }
+            Err(_) => "Rename symbol".to_string(),
+        }
+    }
+
+    fn run(
+        self: Arc<Self>,
+        input: serde_json::Value,
+        _messages: &[LanguageModelRequestMessage],
+        project: Entity<Project>,
+        action_log: Entity<ActionLog>,
+        cx: &mut App,
+    ) -> ToolResult {
+        let input = match serde_json::from_value::<RenameToolInput>(input) {
+            Ok(input) => input,
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
+        };
+
+        cx.spawn(async move |cx| {
+            let buffer = {
+                let project_path = project.read_with(cx, |project, cx| {
+                    project
+                        .find_project_path(&input.path, cx)
+                        .context("Path not found in project")
+                })??;
+
+                project.update(cx, |project, cx| project.open_buffer(project_path, cx))?.await?
+            };
+
+            action_log.update(cx, |action_log, cx| {
+                action_log.buffer_read(buffer.clone(), cx);
+            })?;
+
+            let position = {
+                let Some(position) = buffer.read_with(cx, |buffer, _cx| {
+                    find_symbol_position(&buffer, &input.context_before_symbol, &input.symbol, &input.context_after_symbol)
+                })? else {
+                    return Err(anyhow!(
+                        "Failed to locate the symbol specified by context_before_symbol, symbol, and context_after_symbol. Make sure context_before_symbol and context_after_symbol each match exactly once in the file."
+                    ));
+                };
+
+                buffer.read_with(cx, |buffer, _| {
+                    position.to_point_utf16(&buffer.snapshot())
+                })?
+            };
+
+            project
+                .update(cx, |project, cx| {
+                    project.perform_rename(buffer.clone(), position, input.new_name.clone(), cx)
+                })?
+                .await?;
+
+            project
+                .update(cx, |project, cx| project.save_buffer(buffer.clone(), cx))?
+                .await?;
+
+            action_log.update(cx, |log, cx| {
+                log.buffer_edited(buffer.clone(), cx)
+            })?;
+
+            Ok(format!("Renamed '{}' to '{}'", input.symbol, input.new_name))
+        }).into()
+    }
+}
+
+/// Finds the position of the symbol in the buffer, if it appears between context_before_symbol
+/// and context_after_symbol, and if that combined string has one unique result in the buffer.
+///
+/// If an exact match fails, it tries adding a newline to the end of context_before_symbol and
+/// to the beginning of context_after_symbol to accommodate line-based context matching.
+fn find_symbol_position(
+    buffer: &Buffer,
+    context_before_symbol: &str,
+    symbol: &str,
+    context_after_symbol: &str,
+) -> Option<language::Anchor> {
+    let snapshot = buffer.snapshot();
+    let text = snapshot.text();
+
+    // First try with exact match
+    let search_string = format!("{context_before_symbol}{symbol}{context_after_symbol}");
+    let mut positions = text.match_indices(&search_string);
+    let position_result = positions.next();
+
+    if let Some(position) = position_result {
+        // Check if the matched string is unique
+        if positions.next().is_none() {
+            let symbol_start = position.0 + context_before_symbol.len();
+            let symbol_start_anchor =
+                snapshot.anchor_before(snapshot.offset_to_point(symbol_start));
+
+            return Some(symbol_start_anchor);
+        }
+    }
+
+    // If exact match fails or is not unique, try with line-based context
+    // Add a newline to the end of before context and beginning of after context
+    let line_based_before = if context_before_symbol.ends_with('\n') {
+        context_before_symbol.to_string()
+    } else {
+        format!("{context_before_symbol}\n")
+    };
+
+    let line_based_after = if context_after_symbol.starts_with('\n') {
+        context_after_symbol.to_string()
+    } else {
+        format!("\n{context_after_symbol}")
+    };
+
+    let line_search_string = format!("{line_based_before}{symbol}{line_based_after}");
+    let mut line_positions = text.match_indices(&line_search_string);
+    let line_position = line_positions.next()?;
+
+    // The line-based search string must also appear exactly once
+    if line_positions.next().is_some() {
+        return None;
+    }
+
+    let line_symbol_start = line_position.0 + line_based_before.len();
+    let line_symbol_start_anchor =
+        snapshot.anchor_before(snapshot.offset_to_point(line_symbol_start));
+
+    Some(line_symbol_start_anchor)
+}
--- a/crates/assistant_tools/src/rename_tool/description.md
+++ b/crates/assistant_tools/src/rename_tool/description.md
@@ -0,0 +1,15 @@
+Renames a symbol across your codebase using the language server's semantic knowledge.
+
+This tool performs a rename refactoring operation on a specified symbol. It uses the project's language server to analyze the code and perform the rename correctly across all files where the symbol is referenced.
+
+Unlike a simple find and replace, this tool understands the semantic meaning of the code, so it only renames the specific symbol you specify and not unrelated text that happens to have the same name.
+
+Examples of symbols you can rename:
+- Variables
+- Functions
+- Classes/structs
+- Fields/properties
+- Methods
+- Interfaces/traits
+
+The language server handles updating all references to the renamed symbol throughout the codebase.
--- a/crates/assistant_tools/src/schema.rs
+++ b/crates/assistant_tools/src/schema.rs
@@ -5,23 +5,20 @@ use schemars::{
    schema::{RootSchema, Schema, SchemaObject},
 };

-pub fn json_schema_for<T: JsonSchema>(format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+pub fn json_schema_for<T: JsonSchema>(
+    format: LanguageModelToolSchemaFormat,
+) -> Result<serde_json::Value> {
    let schema = root_schema_for::<T>(format);
-    schema_to_json(&schema, format).expect("Failed to convert tool calling schema to JSON")
+    schema_to_json(&schema, format)
 }

-pub fn schema_to_json(
+fn schema_to_json(
    schema: &RootSchema,
    format: LanguageModelToolSchemaFormat,
 ) -> Result<serde_json::Value> {
    let mut value = serde_json::to_value(schema)?;
-    match format {
-        LanguageModelToolSchemaFormat::JsonSchema => Ok(value),
-        LanguageModelToolSchemaFormat::JsonSchemaSubset => {
-            transform_fields_to_json_schema_subset(&mut value);
-            Ok(value)
-        }
-    }
+    assistant_tool::adapt_schema_to_format(&mut value, format)?;
+    Ok(value)
 }

 fn root_schema_for<T: JsonSchema>(format: LanguageModelToolSchemaFormat) -> RootSchema {
@@ -79,42 +76,3 @@ impl schemars::visit::Visitor for TransformToJsonSchemaSubsetVisitor {
        schemars::visit::visit_schema_object(self, schema)
    }
 }
-
-fn transform_fields_to_json_schema_subset(json: &mut serde_json::Value) {
-    if let serde_json::Value::Object(obj) = json {
-        if let Some(default) = obj.get("default") {
-            let is_null = default.is_null();
-            //Default is not supported, so we need to remove it.
-            obj.remove("default");
-            if is_null {
-                obj.insert("nullable".to_string(), serde_json::Value::Bool(true));
-            }
-        }
-
-        // If a type is not specified for an input parameter we need to add it.
-        if obj.contains_key("description")
-            && !obj.contains_key("type")
-            && !(obj.contains_key("anyOf")
-                || obj.contains_key("oneOf")
-                || obj.contains_key("allOf"))
-        {
-            obj.insert(
-                "type".to_string(),
-                serde_json::Value::String("string".to_string()),
-            );
-        }
-
-        //Format field is only partially supported (e.g. not uint compatibility)
-        obj.remove("format");
-
-        for (_, value) in obj.iter_mut() {
-            if let serde_json::Value::Object(_) | serde_json::Value::Array(_) = value {
-                transform_fields_to_json_schema_subset(value);
-            }
-        }
-    } else if let serde_json::Value::Array(arr) = json {
-        for item in arr.iter_mut() {
-            transform_fields_to_json_schema_subset(item);
-        }
-    }
-}
--- a/crates/assistant_tools/src/symbol_info_tool.rs
+++ b/crates/assistant_tools/src/symbol_info_tool.rs
@@ -1,5 +1,5 @@
 use anyhow::{Context as _, Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, AsyncApp, Entity, Task};
 use language::{self, Anchor, Buffer, BufferSnapshot, Location, Point, ToPoint, ToPointUtf16};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -72,7 +72,7 @@ impl Tool for SymbolInfoTool {
        "symbol_info".into()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -84,7 +84,7 @@ impl Tool for SymbolInfoTool {
        IconName::Code
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<SymbolInfoToolInput>(format)
    }

@@ -122,10 +122,10 @@ impl Tool for SymbolInfoTool {
        project: Entity<Project>,
        action_log: Entity<ActionLog>,
        cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        let input = match serde_json::from_value::<SymbolInfoToolInput>(input) {
            Ok(input) => input,
-            Err(err) => return Task::ready(Err(anyhow!(err))),
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
        };

        cx.spawn(async move |cx| {
@@ -205,7 +205,7 @@ impl Tool for SymbolInfoTool {
            } else {
                Ok(output)
            }
-        })
+        }).into()
    }
 }

--- a/crates/assistant_tools/src/terminal_tool.rs
+++ b/crates/assistant_tools/src/terminal_tool.rs
@@ -0,0 +1,371 @@
+use crate::schema::json_schema_for;
+use anyhow::{Context as _, Result, anyhow};
+use assistant_tool::{ActionLog, Tool, ToolResult};
+use futures::io::BufReader;
+use futures::{AsyncBufReadExt, AsyncReadExt, FutureExt};
+use gpui::{App, AppContext, Entity, Task};
+use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
+use project::Project;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use std::future;
+use util::get_system_shell;
+
+use std::path::Path;
+use std::sync::Arc;
+use ui::IconName;
+use util::command::new_smol_command;
+use util::markdown::MarkdownString;
+
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
+pub struct TerminalToolInput {
+    /// The one-liner command to execute.
+    command: String,
+    /// Working directory for the command. This must be one of the root directories of the project.
+    cd: String,
+}
+
+pub struct TerminalTool;
+
+impl Tool for TerminalTool {
+    fn name(&self) -> String {
+        "terminal".to_string()
+    }
+
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
+        true
+    }
+
+    fn description(&self) -> String {
+        include_str!("./terminal_tool/description.md").to_string()
+    }
+
+    fn icon(&self) -> IconName {
+        IconName::Terminal
+    }
+
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
+        json_schema_for::<TerminalToolInput>(format)
+    }
+
+    fn ui_text(&self, input: &serde_json::Value) -> String {
+        match serde_json::from_value::<TerminalToolInput>(input.clone()) {
+            Ok(input) => {
+                let mut lines = input.command.lines();
+                let first_line = lines.next().unwrap_or_default();
+                let remaining_line_count = lines.count();
+                match remaining_line_count {
+                    0 => MarkdownString::inline_code(&first_line).0,
+                    1 => {
+                        MarkdownString::inline_code(&format!(
+                            "{} - {} more line",
+                            first_line, remaining_line_count
+                        ))
+                        .0
+                    }
+                    n => {
+                        MarkdownString::inline_code(&format!("{} - {} more lines", first_line, n)).0
+                    }
+                }
+            }
+            Err(_) => "Run terminal command".to_string(),
+        }
+    }
+
+    fn run(
+        self: Arc<Self>,
+        input: serde_json::Value,
+        _messages: &[LanguageModelRequestMessage],
+        project: Entity<Project>,
+        _action_log: Entity<ActionLog>,
+        cx: &mut App,
+    ) -> ToolResult {
+        let input: TerminalToolInput = match serde_json::from_value(input) {
+            Ok(input) => input,
+            Err(err) => return Task::ready(Err(anyhow!(err))).into(),
+        };
+
+        let project = project.read(cx);
+        let input_path = Path::new(&input.cd);
+        let working_dir = if input.cd == "." {
+            // Accept "." as meaning "the one worktree" if we only have one worktree.
+            let mut worktrees = project.worktrees(cx);
+
+            let only_worktree = match worktrees.next() {
+                Some(worktree) => worktree,
+                None => {
+                    return Task::ready(Err(anyhow!("No worktrees found in the project"))).into();
+                }
+            };
+
+            if worktrees.next().is_some() {
+                return Task::ready(Err(anyhow!(
+                    "'.' is ambiguous in multi-root workspaces. Please specify a root directory explicitly."
+                ))).into();
+            }
+
+            only_worktree.read(cx).abs_path()
+        } else if input_path.is_absolute() {
+            // Absolute paths are allowed, but only if they're in one of the project's worktrees.
+            if !project
+                .worktrees(cx)
+                .any(|worktree| input_path.starts_with(&worktree.read(cx).abs_path()))
+            {
+                return Task::ready(Err(anyhow!(
+                    "The absolute path must be within one of the project's worktrees"
+                )))
+                .into();
+            }
+
+            input_path.into()
+        } else {
+            let Some(worktree) = project.worktree_for_root_name(&input.cd, cx) else {
+                return Task::ready(Err(anyhow!(
+                    "`cd` directory {} not found in the project",
+                    &input.cd
+                )))
+                .into();
+            };
+
+            worktree.read(cx).abs_path()
+        };
+
+        cx.background_spawn(run_command_limited(working_dir, input.command))
+            .into()
+    }
+}
+
+const LIMIT: usize = 16 * 1024;
+
+async fn run_command_limited(working_dir: Arc<Path>, command: String) -> Result<String> {
+    let shell = get_system_shell();
+
+    let mut cmd = new_smol_command(&shell)
+        .arg("-c")
+        .arg(&command)
+        .current_dir(working_dir)
+        .stdout(std::process::Stdio::piped())
+        .stderr(std::process::Stdio::piped())
+        .spawn()
+        .context("Failed to execute terminal command")?;
+
+    let mut combined_buffer = String::with_capacity(LIMIT + 1);
+
+    let mut out_reader = BufReader::new(cmd.stdout.take().context("Failed to get stdout")?);
+    let mut out_tmp_buffer = String::with_capacity(512);
+    let mut err_reader = BufReader::new(cmd.stderr.take().context("Failed to get stderr")?);
+    let mut err_tmp_buffer = String::with_capacity(512);
+
+    let mut out_line = Box::pin(
+        out_reader
+            .read_line(&mut out_tmp_buffer)
+            .left_future()
+            .fuse(),
+    );
+    let mut err_line = Box::pin(
+        err_reader
+            .read_line(&mut err_tmp_buffer)
+            .left_future()
+            .fuse(),
+    );
+
+    let mut has_stdout = true;
+    let mut has_stderr = true;
+    while (has_stdout || has_stderr) && combined_buffer.len() < LIMIT + 1 {
+        futures::select_biased! {
+            read = out_line => {
+                drop(out_line);
+                combined_buffer.extend(out_tmp_buffer.drain(..));
+                if read? == 0 {
+                    out_line = Box::pin(future::pending().right_future().fuse());
+                    has_stdout = false;
+                } else {
+                    out_line = Box::pin(out_reader.read_line(&mut out_tmp_buffer).left_future().fuse());
+                }
+            }
+            read = err_line => {
+                drop(err_line);
+                combined_buffer.extend(err_tmp_buffer.drain(..));
+                if read? == 0 {
+                    err_line = Box::pin(future::pending().right_future().fuse());
+                    has_stderr = false;
+                } else {
+                    err_line = Box::pin(err_reader.read_line(&mut err_tmp_buffer).left_future().fuse());
+                }
+            }
+        };
+    }
+
+    drop((out_line, err_line));
+
+    let truncated = combined_buffer.len() > LIMIT;
+    combined_buffer.truncate(LIMIT);
+
+    consume_reader(out_reader, truncated).await?;
+    consume_reader(err_reader, truncated).await?;
+
+    let status = cmd.status().await.context("Failed to get command status")?;
+
+    let output_string = if truncated {
+        // Valid to find `\n` in UTF-8 since 0-127 ASCII characters are not used in
+        // multi-byte characters.
+        let last_line_ix = combined_buffer.bytes().rposition(|b| b == b'\n');
+        let combined_buffer = &combined_buffer[..last_line_ix.unwrap_or(combined_buffer.len())];
+
+        format!(
+            "Command output too long. The first {} bytes:\n\n{}",
+            combined_buffer.len(),
+            output_block(&combined_buffer),
+        )
+    } else {
+        output_block(&combined_buffer)
+    };
+
+    let output_with_status = if status.success() {
+        if output_string.is_empty() {
+            "Command executed successfully.".to_string()
+        } else {
+            output_string.to_string()
+        }
+    } else {
+        format!(
+            "Command failed with exit code {} (shell: {}).\n\n{}",
+            status.code().unwrap_or(-1),
+            shell,
+            output_string,
+        )
+    };
+
+    Ok(output_with_status)
+}
+
+async fn consume_reader<T: AsyncReadExt + Unpin>(
+    mut reader: BufReader<T>,
+    truncated: bool,
+) -> Result<(), std::io::Error> {
+    loop {
+        let skipped_bytes = reader.fill_buf().await?;
+        if skipped_bytes.is_empty() {
+            break;
+        }
+        let skipped_bytes_len = skipped_bytes.len();
+        reader.consume_unpin(skipped_bytes_len);
+
+        // Should only skip if we went over the limit
+        debug_assert!(truncated);
+    }
+    Ok(())
+}
+
+fn output_block(output: &str) -> String {
+    format!(
+        "```\n{}{}```",
+        output,
+        if output.ends_with('\n') { "" } else { "\n" }
+    )
+}
+
+#[cfg(test)]
+#[cfg(not(windows))]
+mod tests {
+    use gpui::TestAppContext;
+
+    use super::*;
+
+    #[gpui::test(iterations = 10)]
+    async fn test_run_command_simple(cx: &mut TestAppContext) {
+        cx.executor().allow_parking();
+
+        let result =
+            run_command_limited(Path::new(".").into(), "echo 'Hello, World!'".to_string()).await;
+
+        assert!(result.is_ok());
+        assert_eq!(result.unwrap(), "```\nHello, World!\n```");
+    }
+
+    #[gpui::test(iterations = 10)]
+    async fn test_interleaved_stdout_stderr(cx: &mut TestAppContext) {
+        cx.executor().allow_parking();
+
+        let command = "echo 'stdout 1' && sleep 0.01 && echo 'stderr 1' >&2 && sleep 0.01 && echo 'stdout 2' && sleep 0.01 && echo 'stderr 2' >&2";
+        let result = run_command_limited(Path::new(".").into(), command.to_string()).await;
+
+        assert!(result.is_ok());
+        assert_eq!(
+            result.unwrap(),
+            "```\nstdout 1\nstderr 1\nstdout 2\nstderr 2\n```"
+        );
+    }
+
+    #[gpui::test(iterations = 10)]
+    async fn test_multiple_output_reads(cx: &mut TestAppContext) {
+        cx.executor().allow_parking();
+
+        // Command with multiple outputs that might require multiple reads
+        let result = run_command_limited(
+            Path::new(".").into(),
+            "echo '1'; sleep 0.01; echo '2'; sleep 0.01; echo '3'".to_string(),
+        )
+        .await;
+
+        assert!(result.is_ok());
+        assert_eq!(result.unwrap(), "```\n1\n2\n3\n```");
+    }
+
+    #[gpui::test(iterations = 10)]
+    async fn test_output_truncation_single_line(cx: &mut TestAppContext) {
+        cx.executor().allow_parking();
+
+        let cmd = format!("echo '{}'; sleep 0.01;", "X".repeat(LIMIT * 2));
+
+        let result = run_command_limited(Path::new(".").into(), cmd).await;
+
+        assert!(result.is_ok());
+        let output = result.unwrap();
+
+        let content_start = output.find("```\n").map(|i| i + 4).unwrap_or(0);
+        let content_end = output.rfind("\n```").unwrap_or(output.len());
+        let content_length = content_end - content_start;
+
+        // Output should be exactly the limit
+        assert_eq!(content_length, LIMIT);
+    }
+
+    #[gpui::test(iterations = 10)]
+    async fn test_output_truncation_multiline(cx: &mut TestAppContext) {
+        cx.executor().allow_parking();
+
+        let cmd = format!("echo '{}'; ", "X".repeat(120)).repeat(160);
+        let result = run_command_limited(Path::new(".").into(), cmd).await;
+
+        assert!(result.is_ok());
+        let output = result.unwrap();
+
+        assert!(output.starts_with("Command output too long. The first 16334 bytes:\n\n"));
+
+        let content_start = output.find("```\n").map(|i| i + 4).unwrap_or(0);
+        let content_end = output.rfind("\n```").unwrap_or(output.len());
+        let content_length = content_end - content_start;
+
+        assert!(content_length <= LIMIT);
+    }
+
+    #[gpui::test(iterations = 10)]
+    async fn test_command_failure(cx: &mut TestAppContext) {
+        cx.executor().allow_parking();
+
+        let result = run_command_limited(Path::new(".").into(), "exit 42".to_string()).await;
+
+        assert!(result.is_ok());
+        let output = result.unwrap();
+
+        // Extract the shell name from path for cleaner test output
+        let shell_path = std::env::var("SHELL").unwrap_or("bash".to_string());
+
+        let expected_output = format!(
+            "Command failed with exit code 42 (shell: {}).\n\n```\n\n```",
+            shell_path
+        );
+        assert_eq!(output, expected_output);
+    }
+}
--- a/crates/assistant_tools/src/terminal_tool/description.md
+++ b/crates/assistant_tools/src/terminal_tool/description.md
@@ -0,0 +1,9 @@
+Executes a shell one-liner and returns the combined output.
+
+This tool spawns a process using the user's current shell, combines stdout and stderr into one interleaved stream as they are produced (preserving the order of writes), and captures that stream into a string which is returned.
+
+Make sure you use the `cd` parameter to navigate to one of the root directories of the project. NEVER do it as part of the `command` itself, otherwise it will error.
+
+Do not use this tool for commands that run indefinitely, such as servers (e.g., `python -m http.server`) or file watchers that don't terminate on their own.
+
+Remember that each invocation of this tool will spawn a new shell process, so you can't rely on any state from previous invocations.
--- a/crates/assistant_tools/src/thinking_tool.rs
+++ b/crates/assistant_tools/src/thinking_tool.rs
@@ -2,7 +2,7 @@ use std::sync::Arc;

 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
-use assistant_tool::{ActionLog, Tool};
+use assistant_tool::{ActionLog, Tool, ToolResult};
 use gpui::{App, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -24,7 +24,7 @@ impl Tool for ThinkingTool {
        "thinking".to_string()
    }

-    fn needs_confirmation(&self) -> bool {
+    fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
        false
    }

@@ -33,10 +33,10 @@ impl Tool for ThinkingTool {
    }

    fn icon(&self) -> IconName {
-        IconName::Brain
+        IconName::LightBulb
    }

-    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> serde_json::Value {
+    fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
        json_schema_for::<ThinkingToolInput>(format)
    }

@@ -51,11 +51,12 @@ impl Tool for ThinkingTool {
        _project: Entity<Project>,
        _action_log: Entity<ActionLog>,
        _cx: &mut App,
-    ) -> Task<Result<String>> {
+    ) -> ToolResult {
        // This tool just "thinks out loud" and doesn't perform any actions.
        Task::ready(match serde_json::from_value::<ThinkingToolInput>(input) {
            Ok(_input) => Ok("Finished thinking.".to_string()),
            Err(err) => Err(anyhow!(err)),
        })
+        .into()
    }
 }
--- a/crates/auto_update/Cargo.toml
+++ b/crates/auto_update/Cargo.toml
@@ -27,6 +27,8 @@ serde_json.workspace = true
 settings.workspace = true
 smol.workspace = true
 tempfile.workspace = true
-which.workspace = true
 workspace.workspace = true
 workspace-hack.workspace = true
+
+[target.'cfg(not(target_os = "windows"))'.dependencies]
+which.workspace = true
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-binary-icon lucide-binary"><rect x="14" y="14" width="4" height="6" rx="2"/><rect x="6" y="4" width="4" height="6" rx="2"/><path d="M6 20h4"/><path d="M14 10h4"/><path d="M6 14h2v6"/><path d="M14 4h2v6"/></svg>`
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