Checkpoint

This PR adds the `FeatureFlag` suffix to the feature flag types that
were missing them.

This makes the names easier to search in the codebase.

Release Notes:

- N/A

.github/workflows/eval.yml

@@ -2,13 +2,7 @@ name: Run Agent Eval
 
 on:
   schedule:
-    - cron: "0 * * * *"
-  push:
-    branches:
-      - main
-      - "v[0-9]+.[0-9]+.x"
-    tags:
-      - "v*"
+    - cron: "0 0 * * *"
 
   pull_request:
     branches:

Cargo.toml

@@ -109,7 +109,7 @@ members = [
     "crates/project",
     "crates/project_panel",
     "crates/project_symbols",
-    "crates/prompt_library",
+    "crates/rules_library",
     "crates/prompt_store",
     "crates/proto",
     "crates/recent_projects",
@@ -296,6 +296,7 @@ livekit_api = { path = "crates/livekit_api" }
 livekit_client = { path = "crates/livekit_client" }
 lmstudio = { path = "crates/lmstudio" }
 lsp = { path = "crates/lsp" }
+lsp-types = { git = "https://github.com/zed-industries/lsp-types", rev = "c9c189f1c5dd53c624a419ce35bc77ad6a908d18" }
 markdown = { path = "crates/markdown" }
 markdown_preview = { path = "crates/markdown_preview" }
 media = { path = "crates/media" }
@@ -318,7 +319,7 @@ prettier = { path = "crates/prettier" }
 project = { path = "crates/project" }
 project_panel = { path = "crates/project_panel" }
 project_symbols = { path = "crates/project_symbols" }
-prompt_library = { path = "crates/prompt_library" }
+rules_library = { path = "crates/rules_library" }
 prompt_store = { path = "crates/prompt_store" }
 proto = { path = "crates/proto" }
 recent_projects = { path = "crates/recent_projects" }
@@ -499,6 +500,7 @@ prost-types = "0.9"
 pulldown-cmark = { version = "0.12.0", default-features = false }
 quote = "1.0.9"
 rand = "0.8.5"
+ref-cast = "1.0.24"
 rayon = "1.8"
 regex = "1.5"
 repair_json = "0.1.0"
@@ -605,7 +607,7 @@ wasmtime-wasi = "29"
 which = "6.0.0"
 wit-component = "0.221"
 workspace-hack = "0.1.0"
-zed_llm_client = "0.6.1"
+zed_llm_client = "0.7.1"
 zstd = "0.11"
 metal = "0.29"
 

assets/keymaps/default-linux.json

@@ -212,7 +212,7 @@
       "ctrl-shift-g": "search::SelectPreviousMatch",
       "ctrl-alt-/": "assistant::ToggleModelSelector",
       "ctrl-k h": "assistant::DeployHistory",
-      "ctrl-k l": "assistant::OpenPromptLibrary",
+      "ctrl-k l": "assistant::OpenRulesLibrary",
       "new": "assistant::NewChat",
       "ctrl-t": "assistant::NewChat",
       "ctrl-n": "assistant::NewChat"
@@ -241,7 +241,7 @@
       "ctrl-alt-n": "agent::NewTextThread",
       "ctrl-shift-h": "agent::OpenHistory",
       "ctrl-alt-c": "agent::OpenConfiguration",
-      "ctrl-alt-p": "assistant::OpenPromptLibrary",
+      "ctrl-alt-p": "assistant::OpenRulesLibrary",
       "ctrl-i": "agent::ToggleProfileSelector",
       "ctrl-alt-/": "assistant::ToggleModelSelector",
       "ctrl-shift-a": "agent::ToggleContextPicker",
@@ -308,9 +308,9 @@
   {
     "context": "PromptLibrary",
     "bindings": {
-      "new": "prompt_library::NewPrompt",
-      "ctrl-n": "prompt_library::NewPrompt",
-      "ctrl-shift-s": "prompt_library::ToggleDefaultPrompt"
+      "new": "rules_library::NewRule",
+      "ctrl-n": "rules_library::NewRule",
+      "ctrl-shift-s": "rules_library::ToggleDefaultRule"
     }
   },
   {
@@ -675,7 +675,7 @@
     }
   },
   {
-    "context": "Editor && mode == full",
+    "context": "!ContextEditor > Editor && mode == full",
     "bindings": {
       "alt-enter": "editor::OpenExcerpts",
       "shift-enter": "editor::ExpandExcerpts",

assets/keymaps/default-macos.json

@@ -5,8 +5,8 @@
     "context": "PromptLibrary",
     "use_key_equivalents": true,
     "bindings": {
-      "cmd-n": "prompt_library::NewPrompt",
-      "cmd-shift-s": "prompt_library::ToggleDefaultPrompt",
+      "cmd-n": "rules_library::NewRule",
+      "cmd-shift-s": "rules_library::ToggleDefaultRule",
       "cmd-w": "workspace::CloseWindow"
     }
   },
@@ -257,7 +257,7 @@
       "cmd-shift-g": "search::SelectPreviousMatch",
       "cmd-alt-/": "assistant::ToggleModelSelector",
       "cmd-k h": "assistant::DeployHistory",
-      "cmd-k l": "assistant::OpenPromptLibrary",
+      "cmd-k l": "assistant::OpenRulesLibrary",
       "cmd-t": "assistant::NewChat",
       "cmd-n": "assistant::NewChat"
     }
@@ -286,7 +286,7 @@
       "cmd-alt-n": "agent::NewTextThread",
       "cmd-shift-h": "agent::OpenHistory",
       "cmd-alt-c": "agent::OpenConfiguration",
-      "cmd-alt-p": "assistant::OpenPromptLibrary",
+      "cmd-alt-p": "assistant::OpenRulesLibrary",
       "cmd-i": "agent::ToggleProfileSelector",
       "cmd-alt-/": "assistant::ToggleModelSelector",
       "cmd-shift-a": "agent::ToggleContextPicker",
@@ -738,7 +738,7 @@
     }
   },
   {
-    "context": "Editor && mode == full",
+    "context": "!ContextEditor > Editor && mode == full",
     "use_key_equivalents": true,
     "bindings": {
       "alt-enter": "editor::OpenExcerpts",

assets/prompts/assistant_system_prompt.hbs

@@ -31,6 +31,9 @@ If appropriate, use tool calls to explore the current project, which contains th
 - When looking for symbols in the project, prefer the `grep` tool.
 - As you learn about the structure of the project, use that information to scope `grep` searches to targeted subtrees of the project.
 - Bias towards not asking the user for help if you can find the answer yourself.
+{{! TODO: Only mention tools if they are enabled }}
+- The user might specify a partial file path. If you don't know the full path, use `find_path` (not `grep`) before you read the file.
+- Before you read or edit a file, you must first find the full path. DO NOT ever guess a file path!
 
 ## Fixing Diagnostics
 

assets/settings/default.json

@@ -646,7 +646,7 @@
           "fetch": true,
           "list_directory": false,
           "now": true,
-          "path_search": true,
+          "find_path": true,
           "read_file": true,
           "grep": true,
           "thinking": true,
@@ -670,7 +670,7 @@
           "list_directory": true,
           "move_path": false,
           "now": false,
-          "path_search": true,
+          "find_path": true,
           "read_file": true,
           "grep": true,
           "rename": false,

clippy.toml

@@ -1,2 +1,7 @@
 allow-private-module-inception = true
 avoid-breaking-exported-api = false
+ignore-interior-mutability = [
+    # Suppresses clippy::mutable_key_type, which is a false positive as the Eq
+    # and Hash impls do not use fields with interior mutability.
+    "agent::context::AgentContextKey"
+]

crates/agent/Cargo.toml

@@ -28,7 +28,6 @@ async-watch.workspace = true
 buffer_diff.workspace = true
 chrono.workspace = true
 client.workspace = true
-clock.workspace = true
 collections.workspace = true
 command_palette_hooks.workspace = true
 component.workspace = true
@@ -62,9 +61,10 @@ parking_lot.workspace = true
 paths.workspace = true
 picker.workspace = true
 project.workspace = true
-prompt_library.workspace = true
+rules_library.workspace = true
 prompt_store.workspace = true
 proto.workspace = true
+ref-cast.workspace = true
 release_channel.workspace = true
 rope.workspace = true
 schemars.workspace = true

crates/agent/src/agent_diff.rs

@@ -1,4 +1,4 @@
-use crate::{Keep, KeepAll, Reject, RejectAll, Thread, ThreadEvent};
+use crate::{Keep, KeepAll, Reject, RejectAll, Thread, ThreadEvent, ui::AnimatedLabel};
 use anyhow::Result;
 use buffer_diff::DiffHunkStatus;
 use collections::{HashMap, HashSet};
@@ -8,8 +8,8 @@ use editor::{
     scroll::Autoscroll,
 };
 use gpui::{
-    Action, AnyElement, AnyView, App, Entity, EventEmitter, FocusHandle, Focusable, SharedString,
-    Subscription, Task, WeakEntity, Window, prelude::*,
+    Action, AnyElement, AnyView, App, Empty, Entity, EventEmitter, FocusHandle, Focusable,
+    SharedString, Subscription, Task, WeakEntity, Window, prelude::*,
 };
 use language::{Capability, DiskState, OffsetRangeExt, Point};
 use multi_buffer::PathKey;
@@ -307,6 +307,10 @@ impl AgentDiff {
         window: &mut Window,
         cx: &mut Context<Self>,
     ) {
+        if self.thread.read(cx).is_generating() {
+            return;
+        }
+
         let snapshot = self.multibuffer.read(cx).snapshot(cx);
         let diff_hunks_in_ranges = self
             .editor
@@ -339,6 +343,10 @@ impl AgentDiff {
         window: &mut Window,
         cx: &mut Context<Self>,
     ) {
+        if self.thread.read(cx).is_generating() {
+            return;
+        }
+
         let snapshot = self.multibuffer.read(cx).snapshot(cx);
         let diff_hunks_in_ranges = self
             .editor
@@ -650,6 +658,11 @@ fn render_diff_hunk_controls(
     cx: &mut App,
 ) -> AnyElement {
     let editor = editor.clone();
+
+    if agent_diff.read(cx).thread.read(cx).is_generating() {
+        return Empty.into_any();
+    }
+
     h_flex()
         .h(line_height)
         .mr_0p5()
@@ -857,8 +870,14 @@ impl Render for AgentDiffToolbar {
             None => return div(),
         };
 
-        let is_empty = agent_diff.read(cx).multibuffer.read(cx).is_empty();
+        let is_generating = agent_diff.read(cx).thread.read(cx).is_generating();
+        if is_generating {
+            return div()
+                .w(rems(6.5625)) // Arbitrary 105px size—so the label doesn't dance around
+                .child(AnimatedLabel::new("Generating"));
+        }
 
+        let is_empty = agent_diff.read(cx).multibuffer.read(cx).is_empty();
         if is_empty {
             return div();
         }
@@ -943,11 +962,13 @@ mod tests {
             })
             .unwrap();
 
+        let prompt_store = None;
         let thread_store = cx
             .update(|cx| {
                 ThreadStore::load(
                     project.clone(),
                     cx.new(|_| ToolWorkingSet::default()),
+                    prompt_store,
                     Arc::new(PromptBuilder::new(None).unwrap()),
                     cx,
                 )
@@ -969,7 +990,7 @@ mod tests {
             .await
             .unwrap();
         cx.update(|_, cx| {
-            action_log.update(cx, |log, cx| log.buffer_read(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| {
                 buffer
                     .edit(

crates/agent/src/assistant.rs

@@ -39,6 +39,7 @@ use thread::ThreadId;
 pub use crate::active_thread::ActiveThread;
 use crate::assistant_configuration::{AddContextServerModal, ManageProfilesModal};
 pub use crate::assistant_panel::{AssistantPanel, ConcreteAssistantPanelDelegate};
+pub use crate::context::{ContextLoadResult, LoadedContext};
 pub use crate::inline_assistant::InlineAssistant;
 pub use crate::thread::{Message, Thread, ThreadEvent};
 pub use crate::thread_store::ThreadStore;

crates/agent/src/assistant_configuration/tool_picker.rs

@@ -2,7 +2,7 @@ use std::sync::Arc;
 
 use assistant_settings::{
     AgentProfile, AgentProfileContent, AgentProfileId, AssistantSettings, AssistantSettingsContent,
-    ContextServerPresetContent, VersionedAssistantSettingsContent,
+    ContextServerPresetContent,
 };
 use assistant_tool::{ToolSource, ToolWorkingSet};
 use fs::Fs;
@@ -201,10 +201,10 @@ impl PickerDelegate for ToolPickerDelegate {
             let profile_id = self.profile_id.clone();
             let default_profile = self.profile.clone();
             let tool = tool.clone();
-            move |settings, _cx| match settings {
-                AssistantSettingsContent::Versioned(boxed) => {
-                    if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
-                        let profiles = settings.profiles.get_or_insert_default();
+            move |settings: &mut AssistantSettingsContent, _cx| {
+                settings
+                    .v2_setting(|v2_settings| {
+                        let profiles = v2_settings.profiles.get_or_insert_default();
                         let profile =
                             profiles
                                 .entry(profile_id)
@@ -240,9 +240,10 @@ impl PickerDelegate for ToolPickerDelegate {
                                 *preset.tools.entry(tool.name.clone()).or_default() = is_enabled;
                             }
                         }
-                    }
-                }
-                _ => {}
+
+                        Ok(())
+                    })
+                    .ok();
             }
         });
     }

crates/agent/src/assistant_panel.rs

@@ -12,21 +12,21 @@ use assistant_settings::{AssistantDockPosition, AssistantSettings};
 use assistant_slash_command::SlashCommandWorkingSet;
 use assistant_tool::ToolWorkingSet;
 
-use client::zed_urls;
+use client::{UserStore, zed_urls};
 use editor::{Anchor, AnchorRangeExt as _, Editor, EditorEvent, MultiBuffer};
 use fs::Fs;
 use gpui::{
-    Action, Animation, AnimationExt as _, AnyElement, App, AsyncWindowContext, Corner, Entity,
-    EventEmitter, FocusHandle, Focusable, FontWeight, KeyContext, Pixels, Subscription, Task,
-    UpdateGlobal, WeakEntity, prelude::*, pulsating_between,
+    Action, Animation, AnimationExt as _, AnyElement, App, AsyncWindowContext, ClipboardItem,
+    Corner, Entity, EventEmitter, FocusHandle, Focusable, FontWeight, KeyContext, Pixels,
+    Subscription, Task, UpdateGlobal, WeakEntity, prelude::*, pulsating_between,
 };
 use language::LanguageRegistry;
 use language_model::{LanguageModelProviderTosView, LanguageModelRegistry};
 use language_model_selector::ToggleModelSelector;
 use project::Project;
-use prompt_library::{PromptLibrary, open_prompt_library};
-use prompt_store::{PromptBuilder, PromptId, UserPromptId};
+use prompt_store::{PromptBuilder, PromptStore, UserPromptId};
 use proto::Plan;
+use rules_library::{RulesLibrary, open_rules_library};
 use settings::{Settings, update_settings_file};
 use time::UtcOffset;
 use ui::{
@@ -36,7 +36,7 @@ use util::ResultExt as _;
 use workspace::Workspace;
 use workspace::dock::{DockPosition, Panel, PanelEvent};
 use zed_actions::agent::OpenConfiguration;
-use zed_actions::assistant::{OpenPromptLibrary, ToggleFocus};
+use zed_actions::assistant::{OpenRulesLibrary, ToggleFocus};
 
 use crate::active_thread::{ActiveThread, ActiveThreadEvent};
 use crate::assistant_configuration::{AssistantConfiguration, AssistantConfigurationEvent};
@@ -79,11 +79,11 @@ pub fn init(cx: &mut App) {
                         panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
                     }
                 })
-                .register_action(|workspace, action: &OpenPromptLibrary, window, cx| {
+                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
                     if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
                         workspace.focus_panel::<AssistantPanel>(window, cx);
                         panel.update(cx, |panel, cx| {
-                            panel.deploy_prompt_library(action, window, cx)
+                            panel.deploy_rules_library(action, window, cx)
                         });
                     }
                 })
@@ -180,6 +180,7 @@ impl ActiveView {
 
 pub struct AssistantPanel {
     workspace: WeakEntity<Workspace>,
+    user_store: Entity<UserStore>,
     project: Entity<Project>,
     fs: Arc<dyn Fs>,
     language_registry: Arc<LanguageRegistry>,
@@ -188,6 +189,7 @@ pub struct AssistantPanel {
     message_editor: Entity<MessageEditor>,
     _active_thread_subscriptions: Vec<Subscription>,
     context_store: Entity<assistant_context_editor::ContextStore>,
+    prompt_store: Option<Entity<PromptStore>>,
     configuration: Option<Entity<AssistantConfiguration>>,
     configuration_subscription: Option<Subscription>,
     local_timezone: UtcOffset,
@@ -204,14 +206,25 @@ impl AssistantPanel {
     pub fn load(
         workspace: WeakEntity<Workspace>,
         prompt_builder: Arc<PromptBuilder>,
-        cx: AsyncWindowContext,
+        mut cx: AsyncWindowContext,
     ) -> Task<Result<Entity<Self>>> {
+        let prompt_store = cx.update(|_window, cx| PromptStore::global(cx));
         cx.spawn(async move |cx| {
+            let prompt_store = match prompt_store {
+                Ok(prompt_store) => prompt_store.await.ok(),
+                Err(_) => None,
+            };
             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)
+                    ThreadStore::load(
+                        project,
+                        tools.clone(),
+                        prompt_store.clone(),
+                        prompt_builder.clone(),
+                        cx,
+                    )
                 })?
                 .await?;
 
@@ -229,7 +242,16 @@ impl AssistantPanel {
                 .await?;
 
             workspace.update_in(cx, |workspace, window, cx| {
-                cx.new(|cx| Self::new(workspace, thread_store, context_store, window, cx))
+                cx.new(|cx| {
+                    Self::new(
+                        workspace,
+                        thread_store,
+                        context_store,
+                        prompt_store,
+                        window,
+                        cx,
+                    )
+                })
             })
         })
     }
@@ -238,11 +260,13 @@ impl AssistantPanel {
         workspace: &Workspace,
         thread_store: Entity<ThreadStore>,
         context_store: Entity<assistant_context_editor::ContextStore>,
+        prompt_store: Option<Entity<PromptStore>>,
         window: &mut Window,
         cx: &mut Context<Self>,
     ) -> Self {
         let thread = thread_store.update(cx, |this, cx| this.create_thread(cx));
         let fs = workspace.app_state().fs.clone();
+        let user_store = workspace.app_state().user_store.clone();
         let project = workspace.project();
         let language_registry = project.read(cx).languages().clone();
         let workspace = workspace.weak_handle();
@@ -260,6 +284,7 @@ impl AssistantPanel {
                 fs.clone(),
                 workspace.clone(),
                 message_editor_context_store.clone(),
+                prompt_store.clone(),
                 thread_store.downgrade(),
                 thread.clone(),
                 window,
@@ -291,7 +316,6 @@ impl AssistantPanel {
                 thread.clone(),
                 thread_store.clone(),
                 language_registry.clone(),
-                message_editor_context_store.clone(),
                 workspace.clone(),
                 window,
                 cx,
@@ -307,6 +331,7 @@ impl AssistantPanel {
         Self {
             active_view,
             workspace,
+            user_store,
             project: project.clone(),
             fs: fs.clone(),
             language_registry,
@@ -319,6 +344,7 @@ impl AssistantPanel {
                 message_editor_subscription,
             ],
             context_store,
+            prompt_store,
             configuration: None,
             configuration_subscription: None,
             local_timezone: UtcOffset::from_whole_seconds(
@@ -352,18 +378,17 @@ impl AssistantPanel {
         self.local_timezone
     }
 
+    pub(crate) fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
+        &self.prompt_store
+    }
+
     pub(crate) fn thread_store(&self) -> &Entity<ThreadStore> {
         &self.thread_store
     }
 
-    fn cancel(
-        &mut self,
-        _: &editor::actions::Cancel,
-        _window: &mut Window,
-        cx: &mut Context<Self>,
-    ) {
+    fn cancel(&mut self, _: &editor::actions::Cancel, window: &mut Window, cx: &mut Context<Self>) {
         self.thread
-            .update(cx, |thread, cx| thread.cancel_last_completion(cx));
+            .update(cx, |thread, cx| thread.cancel_last_completion(window, cx));
     }
 
     fn new_thread(&mut self, action: &NewThread, window: &mut Window, cx: &mut Context<Self>) {
@@ -413,7 +438,6 @@ impl AssistantPanel {
                 thread.clone(),
                 self.thread_store.clone(),
                 self.language_registry.clone(),
-                message_editor_context_store.clone(),
                 self.workspace.clone(),
                 window,
                 cx,
@@ -432,6 +456,7 @@ impl AssistantPanel {
                 self.fs.clone(),
                 self.workspace.clone(),
                 message_editor_context_store,
+                self.prompt_store.clone(),
                 self.thread_store.downgrade(),
                 thread,
                 window,
@@ -486,13 +511,13 @@ impl AssistantPanel {
         context_editor.focus_handle(cx).focus(window);
     }
 
-    fn deploy_prompt_library(
+    fn deploy_rules_library(
         &mut self,
-        action: &OpenPromptLibrary,
+        action: &OpenRulesLibrary,
         _window: &mut Window,
         cx: &mut Context<Self>,
     ) {
-        open_prompt_library(
+        open_rules_library(
             self.language_registry.clone(),
             Box::new(PromptLibraryInlineAssist::new(self.workspace.clone())),
             Arc::new(|| {
@@ -502,9 +527,9 @@ impl AssistantPanel {
                     None,
                 ))
             }),
-            action.prompt_to_select.map(|uuid| PromptId::User {
-                uuid: UserPromptId(uuid),
-            }),
+            action
+                .prompt_to_select
+                .map(|uuid| UserPromptId(uuid).into()),
             cx,
         )
         .detach_and_log_err(cx);
@@ -600,7 +625,6 @@ impl AssistantPanel {
                         thread.clone(),
                         this.thread_store.clone(),
                         this.language_registry.clone(),
-                        message_editor_context_store.clone(),
                         this.workspace.clone(),
                         window,
                         cx,
@@ -619,6 +643,7 @@ impl AssistantPanel {
                         this.fs.clone(),
                         this.workspace.clone(),
                         message_editor_context_store,
+                        this.prompt_store.clone(),
                         this.thread_store.downgrade(),
                         thread,
                         window,
@@ -1122,7 +1147,7 @@ impl AssistantPanel {
                                                     "New Text Thread",
                                                     NewTextThread.boxed_clone(),
                                                 )
-                                                .action("Prompt Library", Box::new(OpenPromptLibrary::default()))
+                                                .action("Rules Library", Box::new(OpenRulesLibrary::default()))
                                                 .action("Settings", Box::new(OpenConfiguration))
                                                 .separator()
                                                 .header("MCPs")
@@ -1548,9 +1573,19 @@ impl AssistantPanel {
     }
 
     fn render_usage_banner(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
+        let plan = self
+            .user_store
+            .read(cx)
+            .current_plan()
+            .map(|plan| match plan {
+                Plan::Free => zed_llm_client::Plan::Free,
+                Plan::ZedPro => zed_llm_client::Plan::ZedPro,
+                Plan::ZedProTrial => zed_llm_client::Plan::ZedProTrial,
+            })
+            .unwrap_or(zed_llm_client::Plan::Free);
         let usage = self.thread.read(cx).last_usage()?;
 
-        Some(UsageBanner::new(zed_llm_client::Plan::ZedProTrial, usage.amount).into_any_element())
+        Some(UsageBanner::new(plan, usage).into_any_element())
     }
 
     fn render_last_error(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
@@ -1605,6 +1640,8 @@ impl AssistantPanel {
                 h_flex()
                     .justify_end()
                     .mt_1()
+                    .gap_1()
+                    .child(self.create_copy_button(ERROR_MESSAGE))
                     .child(Button::new("subscribe", "Subscribe").on_click(cx.listener(
                         |this, _, _, cx| {
                             this.thread.update(cx, |this, _cx| {
@@ -1651,6 +1688,8 @@ impl AssistantPanel {
                 h_flex()
                     .justify_end()
                     .mt_1()
+                    .gap_1()
+                    .child(self.create_copy_button(ERROR_MESSAGE))
                     .child(
                         Button::new("subscribe", "Update Monthly Spend Limit").on_click(
                             cx.listener(|this, _, _, cx| {
@@ -1716,6 +1755,8 @@ impl AssistantPanel {
                 h_flex()
                     .justify_end()
                     .mt_1()
+                    .gap_1()
+                    .child(self.create_copy_button(error_message))
                     .child(
                         Button::new("subscribe", call_to_action).on_click(cx.listener(
                             |this, _, _, cx| {
@@ -1747,6 +1788,7 @@ impl AssistantPanel {
         message: SharedString,
         cx: &mut Context<Self>,
     ) -> AnyElement {
+        let message_with_header = format!("{}\n{}", header, message);
         v_flex()
             .gap_0p5()
             .child(
@@ -1761,12 +1803,14 @@ impl AssistantPanel {
                     .id("error-message")
                     .max_h_32()
                     .overflow_y_scroll()
-                    .child(Label::new(message)),
+                    .child(Label::new(message.clone())),
             )
             .child(
                 h_flex()
                     .justify_end()
                     .mt_1()
+                    .gap_1()
+                    .child(self.create_copy_button(message_with_header))
                     .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
                         |this, _, _, cx| {
                             this.thread.update(cx, |this, _cx| {
@@ -1780,6 +1824,15 @@ impl AssistantPanel {
             .into_any()
     }
 
+    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
+        let message = message.into();
+        IconButton::new("copy", IconName::Copy)
+            .on_click(move |_, _, cx| {
+                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
+            })
+            .tooltip(Tooltip::text("Copy Error Message"))
+    }
+
     fn key_context(&self) -> KeyContext {
         let mut key_context = KeyContext::new_with_defaults();
         key_context.add("AgentPanel");
@@ -1807,7 +1860,7 @@ impl Render for AssistantPanel {
                 this.open_configuration(window, cx);
             }))
             .on_action(cx.listener(Self::open_active_thread_as_markdown))
-            .on_action(cx.listener(Self::deploy_prompt_library))
+            .on_action(cx.listener(Self::deploy_rules_library))
             .on_action(cx.listener(Self::open_agent_diff))
             .on_action(cx.listener(Self::go_back))
             .child(self.render_toolbar(window, cx))
@@ -1834,13 +1887,13 @@ impl PromptLibraryInlineAssist {
     }
 }
 
-impl prompt_library::InlineAssistDelegate for PromptLibraryInlineAssist {
+impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
     fn assist(
         &self,
         prompt_editor: &Entity<Editor>,
         _initial_prompt: Option<String>,
         window: &mut Window,
-        cx: &mut Context<PromptLibrary>,
+        cx: &mut Context<RulesLibrary>,
     ) {
         InlineAssistant::update_global(cx, |assistant, cx| {
             let Some(project) = self
@@ -1850,11 +1903,14 @@ impl prompt_library::InlineAssistDelegate for PromptLibraryInlineAssist {
             else {
                 return;
             };
+            let prompt_store = None;
+            let thread_store = None;
             assistant.assist(
                 &prompt_editor,
                 self.workspace.clone(),
                 project,
-                None,
+                prompt_store,
+                thread_store,
                 window,
                 cx,
             )
@@ -1933,8 +1989,8 @@ impl AssistantPanelDelegate for ConcreteAssistantPanelDelegate {
             // being updated.
             cx.defer_in(window, move |panel, window, cx| {
                 if panel.has_active_thread() {
-                    panel.thread.update(cx, |thread, cx| {
-                        thread.context_store().update(cx, |store, cx| {
+                    panel.message_editor.update(cx, |message_editor, cx| {
+                        message_editor.context_store().update(cx, |store, cx| {
                             let buffer = buffer.read(cx);
                             let selection_ranges = selection_ranges
                                 .into_iter()
@@ -1951,9 +2007,7 @@ impl AssistantPanelDelegate for ConcreteAssistantPanelDelegate {
                                 .collect::<Vec<_>>();
 
                             for (buffer, range) in selection_ranges {
-                                store
-                                    .add_selection(buffer, range, cx)
-                                    .detach_and_log_err(cx);
+                                store.add_selection(buffer, range, cx);
                             }
                         })
                     })

crates/agent/src/buffer_codegen.rs

@@ -1,12 +1,14 @@
-use crate::context::attach_context_to_message;
-use crate::context_store::ContextStore;
+use crate::context::ContextLoadResult;
 use crate::inline_prompt_editor::CodegenStatus;
+use crate::{context::load_context, context_store::ContextStore};
 use anyhow::Result;
 use client::telemetry::Telemetry;
 use collections::HashSet;
 use editor::{Anchor, AnchorRangeExt, MultiBuffer, MultiBufferSnapshot, ToOffset as _, ToPoint};
-use futures::{SinkExt, Stream, StreamExt, channel::mpsc, future::LocalBoxFuture, join};
-use gpui::{App, AppContext as _, Context, Entity, EventEmitter, Subscription, Task};
+use futures::{
+    SinkExt, Stream, StreamExt, TryStreamExt as _, channel::mpsc, future::LocalBoxFuture, join,
+};
+use gpui::{App, AppContext as _, Context, Entity, EventEmitter, Subscription, Task, WeakEntity};
 use language::{Buffer, IndentKind, Point, TransactionId, line_diff};
 use language_model::{
     LanguageModel, LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage,
@@ -14,7 +16,9 @@ use language_model::{
 };
 use multi_buffer::MultiBufferRow;
 use parking_lot::Mutex;
+use project::Project;
 use prompt_store::PromptBuilder;
+use prompt_store::PromptStore;
 use rope::Rope;
 use smol::future::FutureExt;
 use std::{
@@ -39,6 +43,8 @@ pub struct BufferCodegen {
     range: Range<Anchor>,
     initial_transaction_id: Option<TransactionId>,
     context_store: Entity<ContextStore>,
+    project: WeakEntity<Project>,
+    prompt_store: Option<Entity<PromptStore>>,
     telemetry: Arc<Telemetry>,
     builder: Arc<PromptBuilder>,
     pub is_insertion: bool,
@@ -50,6 +56,8 @@ impl BufferCodegen {
         range: Range<Anchor>,
         initial_transaction_id: Option<TransactionId>,
         context_store: Entity<ContextStore>,
+        project: WeakEntity<Project>,
+        prompt_store: Option<Entity<PromptStore>>,
         telemetry: Arc<Telemetry>,
         builder: Arc<PromptBuilder>,
         cx: &mut Context<Self>,
@@ -60,6 +68,8 @@ impl BufferCodegen {
                 range.clone(),
                 false,
                 Some(context_store.clone()),
+                project.clone(),
+                prompt_store.clone(),
                 Some(telemetry.clone()),
                 builder.clone(),
                 cx,
@@ -75,6 +85,8 @@ impl BufferCodegen {
             range,
             initial_transaction_id,
             context_store,
+            project,
+            prompt_store,
             telemetry,
             builder,
         };
@@ -153,6 +165,8 @@ impl BufferCodegen {
                     self.range.clone(),
                     false,
                     Some(self.context_store.clone()),
+                    self.project.clone(),
+                    self.prompt_store.clone(),
                     Some(self.telemetry.clone()),
                     self.builder.clone(),
                     cx,
@@ -229,13 +243,14 @@ pub struct CodegenAlternative {
     generation: Task<()>,
     diff: Diff,
     context_store: Option<Entity<ContextStore>>,
+    project: WeakEntity<Project>,
+    prompt_store: Option<Entity<PromptStore>>,
     telemetry: Option<Arc<Telemetry>>,
     _subscription: gpui::Subscription,
     builder: Arc<PromptBuilder>,
     active: bool,
     edits: Vec<(Range<Anchor>, String)>,
     line_operations: Vec<LineOperation>,
-    request: Option<LanguageModelRequest>,
     elapsed_time: Option<f64>,
     completion: Option<String>,
     pub message_id: Option<String>,
@@ -249,6 +264,8 @@ impl CodegenAlternative {
         range: Range<Anchor>,
         active: bool,
         context_store: Option<Entity<ContextStore>>,
+        project: WeakEntity<Project>,
+        prompt_store: Option<Entity<PromptStore>>,
         telemetry: Option<Arc<Telemetry>>,
         builder: Arc<PromptBuilder>,
         cx: &mut Context<Self>,
@@ -290,6 +307,8 @@ impl CodegenAlternative {
             generation: Task::ready(()),
             diff: Diff::default(),
             context_store,
+            project,
+            prompt_store,
             telemetry,
             _subscription: cx.subscribe(&buffer, Self::handle_buffer_event),
             builder,
@@ -297,7 +316,6 @@ impl CodegenAlternative {
             edits: Vec::new(),
             line_operations: Vec::new(),
             range,
-            request: None,
             elapsed_time: None,
             completion: None,
         }
@@ -366,16 +384,18 @@ impl CodegenAlternative {
                 async { Ok(LanguageModelTextStream::default()) }.boxed_local()
             } else {
                 let request = self.build_request(user_prompt, cx)?;
-                self.request = Some(request.clone());
-
-                cx.spawn(async move |_, cx| model.stream_completion_text(request, &cx).await)
+                cx.spawn(async move |_, cx| model.stream_completion_text(request.await, &cx).await)
                     .boxed_local()
             };
         self.handle_stream(telemetry_id, provider_id.to_string(), api_key, stream, cx);
         Ok(())
     }
 
-    fn build_request(&self, user_prompt: String, cx: &mut App) -> Result<LanguageModelRequest> {
+    fn build_request(
+        &self,
+        user_prompt: String,
+        cx: &mut App,
+    ) -> Result<Task<LanguageModelRequest>> {
         let buffer = self.buffer.read(cx).snapshot(cx);
         let language = buffer.language_at(self.range.start);
         let language_name = if let Some(language) = language.as_ref() {
@@ -408,30 +428,44 @@ impl CodegenAlternative {
             .generate_inline_transformation_prompt(user_prompt, language_name, buffer, range)
             .map_err(|e| anyhow::anyhow!("Failed to generate content prompt: {}", e))?;
 
-        let mut request_message = LanguageModelRequestMessage {
-            role: Role::User,
-            content: Vec::new(),
-            cache: false,
-        };
+        let context_task = self.context_store.as_ref().map(|context_store| {
+            if let Some(project) = self.project.upgrade() {
+                let context = context_store
+                    .read(cx)
+                    .context()
+                    .cloned()
+                    .collect::<Vec<_>>();
+                load_context(context, &project, &self.prompt_store, cx)
+            } else {
+                Task::ready(ContextLoadResult::default())
+            }
+        });
 
-        if let Some(context_store) = &self.context_store {
-            attach_context_to_message(
-                &mut request_message,
-                context_store.read(cx).context().iter(),
-                cx,
-            );
-        }
+        Ok(cx.spawn(async move |_cx| {
+            let mut request_message = LanguageModelRequestMessage {
+                role: Role::User,
+                content: Vec::new(),
+                cache: false,
+            };
 
-        request_message.content.push(prompt.into());
+            if let Some(context_task) = context_task {
+                context_task
+                    .await
+                    .loaded_context
+                    .add_to_request_message(&mut request_message);
+            }
 
-        Ok(LanguageModelRequest {
-            thread_id: None,
-            prompt_id: None,
-            tools: Vec::new(),
-            stop: Vec::new(),
-            temperature: None,
-            messages: vec![request_message],
-        })
+            request_message.content.push(prompt.into());
+
+            LanguageModelRequest {
+                thread_id: None,
+                prompt_id: None,
+                tools: Vec::new(),
+                stop: Vec::new(),
+                temperature: None,
+                messages: vec![request_message],
+            }
+        }))
     }
 
     pub fn handle_stream(
@@ -508,7 +542,9 @@ impl CodegenAlternative {
                         let mut response_latency = None;
                         let request_start = Instant::now();
                         let diff = async {
-                            let chunks = StripInvalidSpans::new(stream?.stream);
+                            let chunks = StripInvalidSpans::new(
+                                stream?.stream.map_err(|error| error.into()),
+                            );
                             futures::pin_mut!(chunks);
                             let mut diff = StreamingDiff::new(selected_text.to_string());
                             let mut line_diff = LineDiff::default();
@@ -1034,6 +1070,7 @@ impl Diff {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use fs::FakeFs;
     use futures::{
         Stream,
         stream::{self},
@@ -1076,12 +1113,16 @@ mod tests {
             snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(4, 5))
         });
         let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
+        let fs = FakeFs::new(cx.executor());
+        let project = Project::test(fs, vec![], cx).await;
         let codegen = cx.new(|cx| {
             CodegenAlternative::new(
                 buffer.clone(),
                 range.clone(),
                 true,
                 None,
+                project.downgrade(),
+                None,
                 None,
                 prompt_builder,
                 cx,
@@ -1140,12 +1181,16 @@ mod tests {
             snapshot.anchor_before(Point::new(1, 6))..snapshot.anchor_after(Point::new(1, 6))
         });
         let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
+        let fs = FakeFs::new(cx.executor());
+        let project = Project::test(fs, vec![], cx).await;
         let codegen = cx.new(|cx| {
             CodegenAlternative::new(
                 buffer.clone(),
                 range.clone(),
                 true,
                 None,
+                project.downgrade(),
+                None,
                 None,
                 prompt_builder,
                 cx,
@@ -1207,12 +1252,16 @@ mod tests {
             snapshot.anchor_before(Point::new(1, 2))..snapshot.anchor_after(Point::new(1, 2))
         });
         let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
+        let fs = FakeFs::new(cx.executor());
+        let project = Project::test(fs, vec![], cx).await;
         let codegen = cx.new(|cx| {
             CodegenAlternative::new(
                 buffer.clone(),
                 range.clone(),
                 true,
                 None,
+                project.downgrade(),
+                None,
                 None,
                 prompt_builder,
                 cx,
@@ -1274,12 +1323,16 @@ mod tests {
             snapshot.anchor_before(Point::new(0, 0))..snapshot.anchor_after(Point::new(4, 2))
         });
         let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
+        let fs = FakeFs::new(cx.executor());
+        let project = Project::test(fs, vec![], cx).await;
         let codegen = cx.new(|cx| {
             CodegenAlternative::new(
                 buffer.clone(),
                 range.clone(),
                 true,
                 None,
+                project.downgrade(),
+                None,
                 None,
                 prompt_builder,
                 cx,
@@ -1329,12 +1382,16 @@ mod tests {
             snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(1, 14))
         });
         let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
+        let fs = FakeFs::new(cx.executor());
+        let project = Project::test(fs, vec![], cx).await;
         let codegen = cx.new(|cx| {
             CodegenAlternative::new(
                 buffer.clone(),
                 range.clone(),
                 false,
                 None,
+                project.downgrade(),
+                None,
                 None,
                 prompt_builder,
                 cx,

crates/agent/src/context_picker.rs

@@ -10,8 +10,11 @@ use std::path::PathBuf;
 use std::sync::Arc;
 
 use anyhow::{Result, anyhow};
+pub use completion_provider::ContextPickerCompletionProvider;
 use editor::display_map::{Crease, FoldId};
 use editor::{Anchor, AnchorRangeExt as _, Editor, ExcerptId, FoldPlaceholder, ToOffset};
+use fetch_context_picker::FetchContextPicker;
+use file_context_picker::FileContextPicker;
 use file_context_picker::render_file_context_entry;
 use gpui::{
     App, DismissEvent, Empty, Entity, EventEmitter, FocusHandle, Focusable, Subscription, Task,
@@ -20,10 +23,10 @@ use gpui::{
 use language::Buffer;
 use multi_buffer::MultiBufferRow;
 use project::{Entry, ProjectPath};
-use prompt_store::UserPromptId;
-use rules_context_picker::RulesContextEntry;
+use prompt_store::{PromptStore, UserPromptId};
+use rules_context_picker::{RulesContextEntry, RulesContextPicker};
 use symbol_context_picker::SymbolContextPicker;
-use thread_context_picker::{ThreadContextEntry, render_thread_context_entry};
+use thread_context_picker::{ThreadContextEntry, ThreadContextPicker, render_thread_context_entry};
 use ui::{
     ButtonLike, ContextMenu, ContextMenuEntry, ContextMenuItem, Disclosure, TintColor, prelude::*,
 };
@@ -32,11 +35,6 @@ use workspace::{Workspace, notifications::NotifyResultExt};
 
 use crate::AssistantPanel;
 use crate::context::RULES_ICON;
-pub use crate::context_picker::completion_provider::ContextPickerCompletionProvider;
-use crate::context_picker::fetch_context_picker::FetchContextPicker;
-use crate::context_picker::file_context_picker::FileContextPicker;
-use crate::context_picker::rules_context_picker::RulesContextPicker;
-use crate::context_picker::thread_context_picker::ThreadContextPicker;
 use crate::context_store::ContextStore;
 use crate::thread::ThreadId;
 use crate::thread_store::ThreadStore;
@@ -166,6 +164,7 @@ pub(super) struct ContextPicker {
     workspace: WeakEntity<Workspace>,
     context_store: WeakEntity<ContextStore>,
     thread_store: Option<WeakEntity<ThreadStore>>,
+    prompt_store: Option<Entity<PromptStore>>,
     _subscriptions: Vec<Subscription>,
 }
 
@@ -193,6 +192,13 @@ impl ContextPicker {
             )
             .collect::<Vec<Subscription>>();
 
+        let prompt_store = thread_store.as_ref().and_then(|thread_store| {
+            thread_store
+                .read_with(cx, |thread_store, _cx| thread_store.prompt_store().clone())
+                .ok()
+                .flatten()
+        });
+
         ContextPicker {
             mode: ContextPickerState::Default(ContextMenu::build(
                 window,
@@ -202,6 +208,7 @@ impl ContextPicker {
             workspace,
             context_store,
             thread_store,
+            prompt_store,
             _subscriptions: subscriptions,
         }
     }
@@ -226,7 +233,12 @@ impl ContextPicker {
                 .workspace
                 .upgrade()
                 .map(|workspace| {
-                    available_context_picker_entries(&self.thread_store, &workspace, cx)
+                    available_context_picker_entries(
+                        &self.prompt_store,
+                        &self.thread_store,
+                        &workspace,
+                        cx,
+                    )
                 })
                 .unwrap_or_default();
 
@@ -304,10 +316,10 @@ impl ContextPicker {
                     }));
                 }
                 ContextPickerMode::Rules => {
-                    if let Some(thread_store) = self.thread_store.as_ref() {
+                    if let Some(prompt_store) = self.prompt_store.as_ref() {
                         self.mode = ContextPickerState::Rules(cx.new(|cx| {
                             RulesContextPicker::new(
-                                thread_store.clone(),
+                                prompt_store.clone(),
                                 context_picker.clone(),
                                 self.context_store.clone(),
                                 window,
@@ -526,6 +538,7 @@ enum RecentEntry {
 }
 
 fn available_context_picker_entries(
+    prompt_store: &Option<Entity<PromptStore>>,
     thread_store: &Option<WeakEntity<ThreadStore>>,
     workspace: &Entity<Workspace>,
     cx: &mut App,
@@ -550,6 +563,9 @@ fn available_context_picker_entries(
 
     if thread_store.is_some() {
         entries.push(ContextPickerEntry::Mode(ContextPickerMode::Thread));
+    }
+
+    if prompt_store.is_some() {
         entries.push(ContextPickerEntry::Mode(ContextPickerMode::Rules));
     }
 
@@ -585,22 +601,21 @@ fn recent_context_picker_entries(
             }),
     );
 
-    let mut current_threads = context_store.read(cx).thread_ids();
+    let current_threads = context_store.read(cx).thread_ids();
 
-    if let Some(active_thread) = workspace
+    let active_thread_id = workspace
         .panel::<AssistantPanel>(cx)
-        .map(|panel| panel.read(cx).active_thread(cx))
-    {
-        current_threads.insert(active_thread.read(cx).id().clone());
-    }
+        .map(|panel| panel.read(cx).active_thread(cx).read(cx).id());
 
     if let Some(thread_store) = thread_store.and_then(|thread_store| thread_store.upgrade()) {
         recent.extend(
             thread_store
                 .read(cx)
-                .threads()
+                .reverse_chronological_threads()
                 .into_iter()
-                .filter(|thread| !current_threads.contains(&thread.id))
+                .filter(|thread| {
+                    Some(&thread.id) != active_thread_id && !current_threads.contains(&thread.id)
+                })
                 .take(2)
                 .map(|thread| {
                     RecentEntry::Thread(ThreadContextEntry {
@@ -622,9 +637,7 @@ fn add_selections_as_context(
     let selection_ranges = selection_ranges(workspace, cx);
     context_store.update(cx, |context_store, cx| {
         for (buffer, range) in selection_ranges {
-            context_store
-                .add_selection(buffer, range, cx)
-                .detach_and_log_err(cx);
+            context_store.add_selection(buffer, range, cx);
         }
     })
 }

crates/agent/src/context_picker/completion_provider.rs

@@ -15,22 +15,21 @@ use itertools::Itertools;
 use language::{Buffer, CodeLabel, HighlightId};
 use lsp::CompletionContext;
 use project::{Completion, CompletionIntent, ProjectPath, Symbol, WorktreeId};
-use prompt_store::PromptId;
+use prompt_store::PromptStore;
 use rope::Point;
 use text::{Anchor, OffsetRangeExt, ToPoint};
 use ui::prelude::*;
 use workspace::Workspace;
 
 use crate::context::RULES_ICON;
-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::file_context_picker::FileMatch;
+use super::file_context_picker::{FileMatch, search_files};
 use super::rules_context_picker::{RulesContextEntry, search_rules};
 use super::symbol_context_picker::SymbolMatch;
+use super::symbol_context_picker::search_symbols;
 use super::thread_context_picker::{ThreadContextEntry, ThreadMatch, search_threads};
 use super::{
     ContextPickerAction, ContextPickerEntry, ContextPickerMode, MentionLink, RecentEntry,
@@ -38,8 +37,8 @@ use super::{
 };
 
 pub(crate) enum Match {
-    Symbol(SymbolMatch),
     File(FileMatch),
+    Symbol(SymbolMatch),
     Thread(ThreadMatch),
     Fetch(SharedString),
     Rules(RulesContextEntry),
@@ -69,6 +68,7 @@ fn search(
     query: String,
     cancellation_flag: Arc<AtomicBool>,
     recent_entries: Vec<RecentEntry>,
+    prompt_store: Option<Entity<PromptStore>>,
     thread_store: Option<WeakEntity<ThreadStore>>,
     workspace: Entity<Workspace>,
     cx: &mut App,
@@ -85,6 +85,7 @@ fn search(
                     .collect()
             })
         }
+
         Some(ContextPickerMode::Symbol) => {
             let search_symbols_task =
                 search_symbols(query.clone(), cancellation_flag.clone(), &workspace, cx);
@@ -96,6 +97,7 @@ fn search(
                     .collect()
             })
         }
+
         Some(ContextPickerMode::Thread) => {
             if let Some(thread_store) = thread_store.as_ref().and_then(|t| t.upgrade()) {
                 let search_threads_task =
@@ -111,6 +113,7 @@ fn search(
                 Task::ready(Vec::new())
             }
         }
+
         Some(ContextPickerMode::Fetch) => {
             if !query.is_empty() {
                 Task::ready(vec![Match::Fetch(query.into())])
@@ -118,10 +121,11 @@ fn search(
                 Task::ready(Vec::new())
             }
         }
+
         Some(ContextPickerMode::Rules) => {
-            if let Some(thread_store) = thread_store.as_ref().and_then(|t| t.upgrade()) {
+            if let Some(prompt_store) = prompt_store.as_ref() {
                 let search_rules_task =
-                    search_rules(query.clone(), cancellation_flag.clone(), thread_store, cx);
+                    search_rules(query.clone(), cancellation_flag.clone(), prompt_store, cx);
                 cx.background_spawn(async move {
                     search_rules_task
                         .await
@@ -133,6 +137,7 @@ fn search(
                 Task::ready(Vec::new())
             }
         }
+
         None => {
             if query.is_empty() {
                 let mut matches = recent_entries
@@ -163,7 +168,7 @@ fn search(
                     .collect::<Vec<_>>();
 
                 matches.extend(
-                    available_context_picker_entries(&thread_store, &workspace, cx)
+                    available_context_picker_entries(&prompt_store, &thread_store, &workspace, cx)
                         .into_iter()
                         .map(|mode| {
                             Match::Entry(EntryMatch {
@@ -180,7 +185,8 @@ fn search(
                 let search_files_task =
                     search_files(query.clone(), cancellation_flag.clone(), &workspace, cx);
 
-                let entries = available_context_picker_entries(&thread_store, &workspace, cx);
+                let entries =
+                    available_context_picker_entries(&prompt_store, &thread_store, &workspace, cx);
                 let entry_candidates = entries
                     .iter()
                     .enumerate()
@@ -307,9 +313,11 @@ impl ContextPickerCompletionProvider {
                             move |_, _: &mut Window, cx: &mut App| {
                                 context_store.update(cx, |context_store, cx| {
                                     for (buffer, range) in &selections {
-                                        context_store
-                                            .add_selection(buffer.clone(), range.clone(), cx)
-                                            .detach_and_log_err(cx)
+                                        context_store.add_selection(
+                                            buffer.clone(),
+                                            range.clone(),
+                                            cx,
+                                        );
                                     }
                                 });
 
@@ -437,7 +445,6 @@ impl ContextPickerCompletionProvider {
         source_range: Range<Anchor>,
         editor: Entity<Editor>,
         context_store: Entity<ContextStore>,
-        thread_store: Entity<ThreadStore>,
     ) -> Completion {
         let new_text = MentionLink::for_rules(&rules);
         let new_text_len = new_text.len();
@@ -457,29 +464,10 @@ impl ContextPickerCompletionProvider {
                 new_text_len,
                 editor.clone(),
                 move |cx| {
-                    let prompt_uuid = rules.prompt_id;
-                    let prompt_id = PromptId::User { uuid: prompt_uuid };
-                    let context_store = context_store.clone();
-                    let Some(prompt_store) = thread_store.read(cx).prompt_store() else {
-                        log::error!("Can't add user rules as prompt store is missing.");
-                        return;
-                    };
-                    let prompt_store = prompt_store.read(cx);
-                    let Some(metadata) = prompt_store.metadata(prompt_id) else {
-                        return;
-                    };
-                    let Some(title) = metadata.title else {
-                        return;
-                    };
-                    let text_task = prompt_store.load(prompt_id, cx);
-
-                    cx.spawn(async move |cx| {
-                        let text = text_task.await?;
-                        context_store.update(cx, |context_store, cx| {
-                            context_store.add_rules(prompt_uuid, title, text, false, cx)
-                        })
-                    })
-                    .detach_and_log_err(cx);
+                    let user_prompt_id = rules.prompt_id;
+                    context_store.update(cx, |context_store, cx| {
+                        context_store.add_rules(user_prompt_id, false, cx);
+                    });
                 },
             )),
         }
@@ -516,7 +504,7 @@ impl ContextPickerCompletionProvider {
                     let url_to_fetch = url_to_fetch.clone();
                     cx.spawn(async move |cx| {
                         if context_store.update(cx, |context_store, _| {
-                            context_store.includes_url(&url_to_fetch).is_some()
+                            context_store.includes_url(&url_to_fetch)
                         })? {
                             return Ok(());
                         }
@@ -592,7 +580,7 @@ impl ContextPickerCompletionProvider {
                 move |cx| {
                     context_store.update(cx, |context_store, cx| {
                         let task = if is_directory {
-                            context_store.add_directory(project_path.clone(), false, cx)
+                            Task::ready(context_store.add_directory(&project_path, false, cx))
                         } else {
                             context_store.add_file_from_path(project_path.clone(), false, cx)
                         };
@@ -732,11 +720,19 @@ impl CompletionProvider for ContextPickerCompletionProvider {
             cx,
         );
 
+        let prompt_store = thread_store.as_ref().and_then(|thread_store| {
+            thread_store
+                .read_with(cx, |thread_store, _cx| thread_store.prompt_store().clone())
+                .ok()
+                .flatten()
+        });
+
         let search_task = search(
             mode,
             query,
             Arc::<AtomicBool>::default(),
             recent_entries,
+            prompt_store,
             thread_store.clone(),
             workspace.clone(),
             cx,
@@ -768,6 +764,7 @@ impl CompletionProvider for ContextPickerCompletionProvider {
                                 cx,
                             ))
                         }
+
                         Match::Symbol(SymbolMatch { symbol, .. }) => Self::completion_for_symbol(
                             symbol,
                             excerpt_id,
@@ -777,6 +774,7 @@ impl CompletionProvider for ContextPickerCompletionProvider {
                             workspace.clone(),
                             cx,
                         ),
+
                         Match::Thread(ThreadMatch {
                             thread, is_recent, ..
                         }) => {
@@ -791,17 +789,15 @@ impl CompletionProvider for ContextPickerCompletionProvider {
                                 thread_store,
                             ))
                         }
-                        Match::Rules(user_rules) => {
-                            let thread_store = thread_store.as_ref().and_then(|t| t.upgrade())?;
-                            Some(Self::completion_for_rules(
-                                user_rules,
-                                excerpt_id,
-                                source_range.clone(),
-                                editor.clone(),
-                                context_store.clone(),
-                                thread_store,
-                            ))
-                        }
+
+                        Match::Rules(user_rules) => Some(Self::completion_for_rules(
+                            user_rules,
+                            excerpt_id,
+                            source_range.clone(),
+                            editor.clone(),
+                            context_store.clone(),
+                        )),
+
                         Match::Fetch(url) => Some(Self::completion_for_fetch(
                             source_range.clone(),
                             url,
@@ -810,6 +806,7 @@ impl CompletionProvider for ContextPickerCompletionProvider {
                             context_store.clone(),
                             http_client.clone(),
                         )),
+
                         Match::Entry(EntryMatch { entry, .. }) => Self::completion_for_entry(
                             entry,
                             excerpt_id,

crates/agent/src/context_picker/fetch_context_picker.rs

@@ -227,7 +227,7 @@ impl PickerDelegate for FetchContextPickerDelegate {
         cx: &mut Context<Picker<Self>>,
     ) -> Option<Self::ListItem> {
         let added = self.context_store.upgrade().map_or(false, |context_store| {
-            context_store.read(cx).includes_url(&self.url).is_some()
+            context_store.read(cx).includes_url(&self.url)
         });
 
         Some(

crates/agent/src/context_picker/file_context_picker.rs

@@ -134,9 +134,9 @@ impl PickerDelegate for FileContextPickerDelegate {
             .context_store
             .update(cx, |context_store, cx| {
                 if is_directory {
-                    context_store.add_directory(project_path, true, cx)
+                    Task::ready(context_store.add_directory(&project_path, true, cx))
                 } else {
-                    context_store.add_file_from_path(project_path, true, cx)
+                    context_store.add_file_from_path(project_path.clone(), true, cx)
                 }
             })
             .ok()
@@ -325,11 +325,11 @@ pub fn render_file_context_entry(
             path: path.clone(),
         };
         if is_directory {
-            context_store.read(cx).includes_directory(&project_path)
-        } else {
             context_store
                 .read(cx)
-                .will_include_file_path(&project_path, cx)
+                .path_included_in_directory(&project_path, cx)
+        } else {
+            context_store.read(cx).file_path_included(&project_path, cx)
         }
     });
 
@@ -357,7 +357,7 @@ pub fn render_file_context_entry(
                 })),
         )
         .when_some(added, |el, added| match added {
-            FileInclusion::Direct(_) => el.child(
+            FileInclusion::Direct => el.child(
                 h_flex()
                     .w_full()
                     .justify_end()
@@ -369,9 +369,8 @@ pub fn render_file_context_entry(
                     )
                     .child(Label::new("Added").size(LabelSize::Small)),
             ),
-            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();
+            FileInclusion::InDirectory { full_path } => {
+                let directory_full_path = full_path.to_string_lossy().into_owned();
 
                 el.child(
                     h_flex()
@@ -385,7 +384,7 @@ pub fn render_file_context_entry(
                         )
                         .child(Label::new("Included").size(LabelSize::Small)),
                 )
-                .tooltip(Tooltip::text(format!("in {directory_path}")))
+                .tooltip(Tooltip::text(format!("in {directory_full_path}")))
             }
         })
 }

crates/agent/src/context_picker/rules_context_picker.rs

@@ -1,16 +1,15 @@
 use std::sync::Arc;
 use std::sync::atomic::AtomicBool;
 
-use anyhow::anyhow;
 use gpui::{App, DismissEvent, Entity, FocusHandle, Focusable, Task, WeakEntity};
 use picker::{Picker, PickerDelegate};
-use prompt_store::{PromptId, UserPromptId};
+use prompt_store::{PromptId, PromptStore, UserPromptId};
 use ui::{ListItem, prelude::*};
+use util::ResultExt as _;
 
 use crate::context::RULES_ICON;
 use crate::context_picker::ContextPicker;
 use crate::context_store::{self, ContextStore};
-use crate::thread_store::ThreadStore;
 
 pub struct RulesContextPicker {
     picker: Entity<Picker<RulesContextPickerDelegate>>,
@@ -18,13 +17,13 @@ pub struct RulesContextPicker {
 
 impl RulesContextPicker {
     pub fn new(
-        thread_store: WeakEntity<ThreadStore>,
+        prompt_store: Entity<PromptStore>,
         context_picker: WeakEntity<ContextPicker>,
         context_store: WeakEntity<context_store::ContextStore>,
         window: &mut Window,
         cx: &mut Context<Self>,
     ) -> Self {
-        let delegate = RulesContextPickerDelegate::new(thread_store, context_picker, context_store);
+        let delegate = RulesContextPickerDelegate::new(prompt_store, context_picker, context_store);
         let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));
 
         RulesContextPicker { picker }
@@ -50,7 +49,7 @@ pub struct RulesContextEntry {
 }
 
 pub struct RulesContextPickerDelegate {
-    thread_store: WeakEntity<ThreadStore>,
+    prompt_store: Entity<PromptStore>,
     context_picker: WeakEntity<ContextPicker>,
     context_store: WeakEntity<context_store::ContextStore>,
     matches: Vec<RulesContextEntry>,
@@ -59,12 +58,12 @@ pub struct RulesContextPickerDelegate {
 
 impl RulesContextPickerDelegate {
     pub fn new(
-        thread_store: WeakEntity<ThreadStore>,
+        prompt_store: Entity<PromptStore>,
         context_picker: WeakEntity<ContextPicker>,
         context_store: WeakEntity<context_store::ContextStore>,
     ) -> Self {
         RulesContextPickerDelegate {
-            thread_store,
+            prompt_store,
             context_picker,
             context_store,
             matches: Vec::new(),
@@ -103,11 +102,12 @@ impl PickerDelegate for RulesContextPickerDelegate {
         window: &mut Window,
         cx: &mut Context<Picker<Self>>,
     ) -> Task<()> {
-        let Some(thread_store) = self.thread_store.upgrade() else {
-            return Task::ready(());
-        };
-
-        let search_task = search_rules(query, Arc::new(AtomicBool::default()), thread_store, cx);
+        let search_task = search_rules(
+            query,
+            Arc::new(AtomicBool::default()),
+            &self.prompt_store,
+            cx,
+        );
         cx.spawn_in(window, async move |this, cx| {
             let matches = search_task.await;
             this.update(cx, |this, cx| {
@@ -124,31 +124,11 @@ impl PickerDelegate for RulesContextPickerDelegate {
             return;
         };
 
-        let Some(thread_store) = self.thread_store.upgrade() else {
-            return;
-        };
-
-        let prompt_id = entry.prompt_id;
-
-        let load_rules_task = thread_store.update(cx, |thread_store, cx| {
-            thread_store.load_rules(prompt_id, cx)
-        });
-
-        cx.spawn(async move |this, cx| {
-            let (metadata, text) = load_rules_task.await?;
-            let Some(title) = metadata.title else {
-                return Err(anyhow!("Encountered user rule with no title when attempting to add it to agent context."));
-            };
-            this.update(cx, |this, cx| {
-                this.delegate
-                    .context_store
-                    .update(cx, |context_store, cx| {
-                        context_store.add_rules(prompt_id, title, text, true, cx)
-                    })
-                    .ok();
+        self.context_store
+            .update(cx, |context_store, cx| {
+                context_store.add_rules(entry.prompt_id, true, cx)
             })
-        })
-        .detach_and_log_err(cx);
+            .log_err();
     }
 
     fn dismissed(&mut self, _window: &mut Window, cx: &mut Context<Picker<Self>>) {
@@ -179,11 +159,10 @@ pub fn render_thread_context_entry(
     context_store: WeakEntity<ContextStore>,
     cx: &mut App,
 ) -> Div {
-    let added = context_store.upgrade().map_or(false, |ctx_store| {
-        ctx_store
+    let added = context_store.upgrade().map_or(false, |context_store| {
+        context_store
             .read(cx)
-            .includes_user_rules(&user_rules.prompt_id)
-            .is_some()
+            .includes_user_rules(user_rules.prompt_id)
     });
 
     h_flex()
@@ -218,12 +197,9 @@ pub fn render_thread_context_entry(
 pub(crate) fn search_rules(
     query: String,
     cancellation_flag: Arc<AtomicBool>,
-    thread_store: Entity<ThreadStore>,
+    prompt_store: &Entity<PromptStore>,
     cx: &mut App,
 ) -> Task<Vec<RulesContextEntry>> {
-    let Some(prompt_store) = thread_store.read(cx).prompt_store() else {
-        return Task::ready(vec![]);
-    };
     let search_task = prompt_store.read(cx).search(query, cancellation_flag, cx);
     cx.background_spawn(async move {
         search_task

crates/agent/src/context_picker/symbol_context_picker.rs

@@ -10,7 +10,6 @@ use gpui::{
 use ordered_float::OrderedFloat;
 use picker::{Picker, PickerDelegate};
 use project::{DocumentSymbol, Symbol};
-use text::OffsetRangeExt;
 use ui::{ListItem, prelude::*};
 use util::ResultExt as _;
 use workspace::Workspace;
@@ -228,18 +227,16 @@ pub(crate) fn add_symbol(
             )
         })?;
 
-        context_store
-            .update(cx, move |context_store, cx| {
-                context_store.add_symbol(
-                    buffer,
-                    name.into(),
-                    range,
-                    enclosing_range,
-                    remove_if_exists,
-                    cx,
-                )
-            })?
-            .await
+        context_store.update(cx, move |context_store, cx| {
+            context_store.add_symbol(
+                buffer,
+                name.into(),
+                range,
+                enclosing_range,
+                remove_if_exists,
+                cx,
+            )
+        })
     })
 }
 
@@ -353,38 +350,13 @@ fn compute_symbol_entries(
     context_store: &ContextStore,
     cx: &App,
 ) -> Vec<SymbolEntry> {
-    let mut symbol_entries = Vec::with_capacity(symbols.len());
-    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;
-            for included_symbol_id in symbols_for_path {
-                if included_symbol_id.name.as_ref() == symbol.name.as_str() {
-                    if let Some(buffer) = context_store.buffer_for_symbol(included_symbol_id) {
-                        let snapshot = buffer.read(cx).snapshot();
-                        let included_symbol_range =
-                            included_symbol_id.range.to_point_utf16(&snapshot);
-
-                        if included_symbol_range.start == symbol.range.start.0
-                            && included_symbol_range.end == symbol.range.end.0
-                        {
-                            is_included = true;
-                            break;
-                        }
-                    }
-                }
-            }
-            is_included
-        } else {
-            false
-        };
-
-        symbol_entries.push(SymbolEntry {
+    symbols
+        .into_iter()
+        .map(|SymbolMatch { symbol, .. }| SymbolEntry {
+            is_included: context_store.includes_symbol(&symbol, cx),
             symbol,
-            is_included,
         })
-    }
-    symbol_entries
+        .collect::<Vec<_>>()
 }
 
 pub fn render_symbol_context_entry(id: ElementId, entry: &SymbolEntry) -> Stateful<Div> {

crates/agent/src/context_picker/thread_context_picker.rs

@@ -173,7 +173,7 @@ pub fn render_thread_context_entry(
     cx: &mut App,
 ) -> Div {
     let added = context_store.upgrade().map_or(false, |ctx_store| {
-        ctx_store.read(cx).includes_thread(&thread.id).is_some()
+        ctx_store.read(cx).includes_thread(&thread.id)
     });
 
     h_flex()
@@ -219,7 +219,7 @@ pub(crate) fn search_threads(
 ) -> Task<Vec<ThreadMatch>> {
     let threads = thread_store
         .read(cx)
-        .threads()
+        .reverse_chronological_threads()
         .into_iter()
         .map(|thread| ThreadContextEntry {
             id: thread.id,

crates/agent/src/context_strip.rs

@@ -12,9 +12,9 @@ use itertools::Itertools;
 use language::Buffer;
 use project::ProjectItem;
 use ui::{KeyBinding, PopoverMenu, PopoverMenuHandle, Tooltip, prelude::*};
-use workspace::{Workspace, notifications::NotifyResultExt};
+use workspace::Workspace;
 
-use crate::context::{ContextId, ContextKind};
+use crate::context::{AgentContext, ContextKind};
 use crate::context_picker::ContextPicker;
 use crate::context_store::ContextStore;
 use crate::thread::Thread;
@@ -32,6 +32,7 @@ pub struct ContextStrip {
     focus_handle: FocusHandle,
     suggest_context_kind: SuggestContextKind,
     workspace: WeakEntity<Workspace>,
+    thread_store: Option<WeakEntity<ThreadStore>>,
     _subscriptions: Vec<Subscription>,
     focused_index: Option<usize>,
     children_bounds: Option<Vec<Bounds<Pixels>>>,
@@ -73,12 +74,31 @@ impl ContextStrip {
             focus_handle,
             suggest_context_kind,
             workspace,
+            thread_store,
             _subscriptions: subscriptions,
             focused_index: None,
             children_bounds: None,
         }
     }
 
+    fn added_contexts(&self, cx: &App) -> Vec<AddedContext> {
+        if let Some(workspace) = self.workspace.upgrade() {
+            let project = workspace.read(cx).project().read(cx);
+            let prompt_store = self
+                .thread_store
+                .as_ref()
+                .and_then(|thread_store| thread_store.upgrade())
+                .and_then(|thread_store| thread_store.read(cx).prompt_store().as_ref());
+            self.context_store
+                .read(cx)
+                .context()
+                .flat_map(|context| AddedContext::new(context.clone(), prompt_store, project, cx))
+                .collect::<Vec<_>>()
+        } else {
+            Vec::new()
+        }
+    }
+
     fn suggested_context(&self, cx: &Context<Self>) -> Option<SuggestedContext> {
         match self.suggest_context_kind {
             SuggestContextKind::File => self.suggested_file(cx),
@@ -93,22 +113,19 @@ impl ContextStrip {
         let editor = active_item.to_any().downcast::<Editor>().ok()?.read(cx);
         let active_buffer_entity = editor.buffer().read(cx).as_singleton()?;
         let active_buffer = active_buffer_entity.read(cx);
-
         let project_path = active_buffer.project_path(cx)?;
 
         if self
             .context_store
             .read(cx)
-            .will_include_buffer(active_buffer.remote_id(), &project_path)
+            .file_path_included(&project_path, cx)
             .is_some()
         {
             return None;
         }
 
         let file_name = active_buffer.file()?.file_name(cx);
-
         let icon_path = FileIcons::get_icon(&Path::new(&file_name), cx);
-
         Some(SuggestedContext::File {
             name: file_name.to_string_lossy().into_owned().into(),
             buffer: active_buffer_entity.downgrade(),
@@ -135,7 +152,6 @@ impl ContextStrip {
             .context_store
             .read(cx)
             .includes_thread(active_thread.id())
-            .is_some()
         {
             return None;
         }
@@ -272,12 +288,12 @@ impl ContextStrip {
         best.map(|(index, _, _)| index)
     }
 
-    fn open_context(&mut self, id: ContextId, window: &mut Window, cx: &mut App) {
+    fn open_context(&mut self, context: &AgentContext, window: &mut Window, cx: &mut App) {
         let Some(workspace) = self.workspace.upgrade() else {
             return;
         };
 
-        crate::active_thread::open_context(id, self.context_store.clone(), workspace, window, cx);
+        crate::active_thread::open_context(context, workspace, window, cx);
     }
 
     fn remove_focused_context(
@@ -287,17 +303,17 @@ impl ContextStrip {
         cx: &mut Context<Self>,
     ) {
         if let Some(index) = self.focused_index {
-            let mut is_empty = false;
+            let added_contexts = self.added_contexts(cx);
+            let Some(context) = added_contexts.get(index) else {
+                return;
+            };
 
             self.context_store.update(cx, |this, cx| {
-                if let Some(item) = this.context().get(index) {
-                    this.remove_context(item.id(), cx);
-                }
-
-                is_empty = this.context().is_empty();
+                this.remove_context(&context.context, cx);
             });
 
-            if is_empty {
+            let is_now_empty = added_contexts.len() == 1;
+            if is_now_empty {
                 cx.emit(ContextStripEvent::BlurredEmpty);
             } else {
                 self.focused_index = Some(index.saturating_sub(1));
@@ -306,49 +322,28 @@ impl ContextStrip {
         }
     }
 
-    fn is_suggested_focused<T>(&self, context: &Vec<T>) -> bool {
+    fn is_suggested_focused(&self, added_contexts: &Vec<AddedContext>) -> bool {
         // We only suggest one item after the actual context
-        self.focused_index == Some(context.len())
+        self.focused_index == Some(added_contexts.len())
     }
 
     fn accept_suggested_context(
         &mut self,
         _: &AcceptSuggestedContext,
-        window: &mut Window,
+        _window: &mut Window,
         cx: &mut Context<Self>,
     ) {
         if let Some(suggested) = self.suggested_context(cx) {
-            let context_store = self.context_store.read(cx);
-
-            if self.is_suggested_focused(context_store.context()) {
-                self.add_suggested_context(&suggested, window, cx);
+            if self.is_suggested_focused(&self.added_contexts(cx)) {
+                self.add_suggested_context(&suggested, cx);
             }
         }
     }
 
-    fn add_suggested_context(
-        &mut self,
-        suggested: &SuggestedContext,
-        window: &mut Window,
-        cx: &mut Context<Self>,
-    ) {
-        let task = self.context_store.update(cx, |context_store, cx| {
-            context_store.accept_suggested_context(&suggested, cx)
+    fn add_suggested_context(&mut self, suggested: &SuggestedContext, cx: &mut Context<Self>) {
+        self.context_store.update(cx, |context_store, cx| {
+            context_store.add_suggested_context(&suggested, cx)
         });
-
-        cx.spawn_in(window, async move |this, cx| {
-            match task.await.notify_async_err(cx) {
-                None => {}
-                Some(()) => {
-                    if let Some(this) = this.upgrade() {
-                        this.update(cx, |_, cx| cx.notify())?;
-                    }
-                }
-            }
-            anyhow::Ok(())
-        })
-        .detach_and_log_err(cx);
-
         cx.notify();
     }
 }
@@ -361,17 +356,10 @@ impl Focusable for ContextStrip {
 
 impl Render for ContextStrip {
     fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
-        let context_store = self.context_store.read(cx);
-        let context = context_store.context();
         let context_picker = self.context_picker.clone();
         let focus_handle = self.focus_handle.clone();
 
-        let suggested_context = self.suggested_context(cx);
-
-        let added_contexts = context
-            .iter()
-            .map(|c| AddedContext::new(c, cx))
-            .collect::<Vec<_>>();
+        let added_contexts = self.added_contexts(cx);
         let dupe_names = added_contexts
             .iter()
             .map(|c| c.name.clone())
@@ -380,6 +368,14 @@ impl Render for ContextStrip {
             .filter(|(a, b)| a == b)
             .map(|(a, _)| a)
             .collect::<HashSet<SharedString>>();
+        let no_added_context = added_contexts.is_empty();
+
+        let suggested_context = self.suggested_context(cx).map(|suggested_context| {
+            (
+                suggested_context,
+                self.is_suggested_focused(&added_contexts),
+            )
+        });
 
         h_flex()
             .flex_wrap()
@@ -436,7 +432,7 @@ impl Render for ContextStrip {
                     })
                     .with_handle(self.context_picker_menu_handle.clone()),
             )
-            .when(context.is_empty() && suggested_context.is_none(), {
+            .when(no_added_context && suggested_context.is_none(), {
                 |parent| {
                     parent.child(
                         h_flex()
@@ -466,16 +462,17 @@ impl Render for ContextStrip {
                     .enumerate()
                     .map(|(i, added_context)| {
                         let name = added_context.name.clone();
-                        let id = added_context.id;
+                        let context = added_context.context.clone();
                         ContextPill::added(
                             added_context,
                             dupe_names.contains(&name),
                             self.focused_index == Some(i),
                             Some({
+                                let context = context.clone();
                                 let context_store = self.context_store.clone();
                                 Rc::new(cx.listener(move |_this, _event, _window, cx| {
                                     context_store.update(cx, |this, cx| {
-                                        this.remove_context(id, cx);
+                                        this.remove_context(&context, cx);
                                     });
                                     cx.notify();
                                 }))
@@ -484,7 +481,7 @@ impl Render for ContextStrip {
                         .on_click({
                             Rc::new(cx.listener(move |this, event: &ClickEvent, window, cx| {
                                 if event.down.click_count > 1 {
-                                    this.open_context(id, window, cx);
+                                    this.open_context(&context, window, cx);
                                 } else {
                                     this.focused_index = Some(i);
                                 }
@@ -493,22 +490,22 @@ impl Render for ContextStrip {
                         })
                     }),
             )
-            .when_some(suggested_context, |el, suggested| {
+            .when_some(suggested_context, |el, (suggested, focused)| {
                 el.child(
                     ContextPill::suggested(
                         suggested.name().clone(),
                         suggested.icon_path(),
                         suggested.kind(),
-                        self.is_suggested_focused(&context),
+                        focused,
                     )
                     .on_click(Rc::new(cx.listener(
-                        move |this, _event, window, cx| {
-                            this.add_suggested_context(&suggested, window, cx);
+                        move |this, _event, _window, cx| {
+                            this.add_suggested_context(&suggested, cx);
                         },
                     ))),
                 )
             })
-            .when(!context.is_empty(), {
+            .when(!no_added_context, {
                 move |parent| {
                     parent.child(
                         IconButton::new("remove-all-context", IconName::Eraser)
@@ -534,6 +531,7 @@ impl Render for ContextStrip {
                     )
                 }
             })
+            .into_any()
     }
 }
 

crates/agent/src/history_store.rs

@@ -51,7 +51,10 @@ impl HistoryStore {
             return history_entries;
         }
 
-        for thread in self.thread_store.update(cx, |this, _cx| this.threads()) {
+        for thread in self
+            .thread_store
+            .update(cx, |this, _cx| this.reverse_chronological_threads())
+        {
             history_entries.push(HistoryEntry::Thread(thread));
         }
 

crates/agent/src/inline_assistant.rs

@@ -32,6 +32,7 @@ use project::LspAction;
 use project::Project;
 use project::{CodeAction, ProjectTransaction};
 use prompt_store::PromptBuilder;
+use prompt_store::PromptStore;
 use settings::{Settings, SettingsStore};
 use telemetry_events::{AssistantEventData, AssistantKind, AssistantPhase};
 use terminal_view::{TerminalView, terminal_panel::TerminalPanel};
@@ -245,9 +246,13 @@ impl InlineAssistant {
                 .map_or(false, |model| model.provider.is_authenticated(cx))
         };
 
-        let thread_store = workspace
+        let assistant_panel = workspace
             .panel::<AssistantPanel>(cx)
-            .map(|assistant_panel| assistant_panel.read(cx).thread_store().downgrade());
+            .map(|assistant_panel| assistant_panel.read(cx));
+        let prompt_store = assistant_panel
+            .and_then(|assistant_panel| assistant_panel.prompt_store().as_ref().cloned());
+        let thread_store =
+            assistant_panel.map(|assistant_panel| assistant_panel.thread_store().downgrade());
 
         let handle_assist =
             |window: &mut Window, cx: &mut Context<Workspace>| match inline_assist_target {
@@ -257,6 +262,7 @@ impl InlineAssistant {
                             &active_editor,
                             cx.entity().downgrade(),
                             workspace.project().downgrade(),
+                            prompt_store,
                             thread_store,
                             window,
                             cx,
@@ -269,6 +275,7 @@ impl InlineAssistant {
                             &active_terminal,
                             cx.entity().downgrade(),
                             workspace.project().downgrade(),
+                            prompt_store,
                             thread_store,
                             window,
                             cx,
@@ -323,6 +330,7 @@ impl InlineAssistant {
         editor: &Entity<Editor>,
         workspace: WeakEntity<Workspace>,
         project: WeakEntity<Project>,
+        prompt_store: Option<Entity<PromptStore>>,
         thread_store: Option<WeakEntity<ThreadStore>>,
         window: &mut Window,
         cx: &mut App,
@@ -437,6 +445,8 @@ impl InlineAssistant {
                     range.clone(),
                     None,
                     context_store.clone(),
+                    project.clone(),
+                    prompt_store.clone(),
                     self.telemetry.clone(),
                     self.prompt_builder.clone(),
                     cx,
@@ -525,6 +535,7 @@ impl InlineAssistant {
         initial_transaction_id: Option<TransactionId>,
         focus: bool,
         workspace: Entity<Workspace>,
+        prompt_store: Option<Entity<PromptStore>>,
         thread_store: Option<WeakEntity<ThreadStore>>,
         window: &mut Window,
         cx: &mut App,
@@ -543,7 +554,7 @@ impl InlineAssistant {
         }
 
         let project = workspace.read(cx).project().downgrade();
-        let context_store = cx.new(|_cx| ContextStore::new(project, thread_store.clone()));
+        let context_store = cx.new(|_cx| ContextStore::new(project.clone(), thread_store.clone()));
 
         let codegen = cx.new(|cx| {
             BufferCodegen::new(
@@ -551,6 +562,8 @@ impl InlineAssistant {
                 range.clone(),
                 initial_transaction_id,
                 context_store.clone(),
+                project,
+                prompt_store,
                 self.telemetry.clone(),
                 self.prompt_builder.clone(),
                 cx,
@@ -1328,7 +1341,7 @@ impl InlineAssistant {
                 editor.highlight_rows::<InlineAssist>(
                     row_range,
                     cx.theme().status().info_background,
-                    false,
+                    Default::default(),
                     cx,
                 );
             }
@@ -1393,7 +1406,7 @@ impl InlineAssistant {
                     editor.highlight_rows::<DeletedLines>(
                         Anchor::min()..Anchor::max(),
                         cx.theme().status().deleted_background,
-                        false,
+                        Default::default(),
                         cx,
                     );
                     editor
@@ -1789,6 +1802,7 @@ impl CodeActionProvider for AssistantCodeActionProvider {
         let editor = self.editor.clone();
         let workspace = self.workspace.clone();
         let thread_store = self.thread_store.clone();
+        let prompt_store = PromptStore::global(cx);
         window.spawn(cx, async move |cx| {
             let workspace = workspace.upgrade().context("workspace was released")?;
             let editor = editor.upgrade().context("editor was released")?;
@@ -1829,6 +1843,7 @@ impl CodeActionProvider for AssistantCodeActionProvider {
                 })?
                 .context("invalid range")?;
 
+            let prompt_store = prompt_store.await.ok();
             cx.update_global(|assistant: &mut InlineAssistant, window, cx| {
                 let assist_id = assistant.suggest_assist(
                     &editor,
@@ -1837,6 +1852,7 @@ impl CodeActionProvider for AssistantCodeActionProvider {
                     None,
                     true,
                     workspace,
+                    prompt_store,
                     thread_store,
                     window,
                     cx,

crates/agent/src/inline_prompt_editor.rs

@@ -13,7 +13,7 @@ use editor::{
     Editor, EditorElement, EditorEvent, EditorMode, EditorStyle, GutterDimensions, MultiBuffer,
     actions::{MoveDown, MoveUp},
 };
-use feature_flags::{FeatureFlagAppExt as _, ZedPro};
+use feature_flags::{FeatureFlagAppExt as _, ZedProFeatureFlag};
 use fs::Fs;
 use gpui::{
     AnyElement, App, ClickEvent, Context, CursorStyle, Entity, EventEmitter, FocusHandle,
@@ -132,7 +132,7 @@ impl<T: 'static> Render for PromptEditor<T> {
 
                                 let error_message = SharedString::from(error.to_string());
                                 if error.error_code() == proto::ErrorCode::RateLimitExceeded
-                                    && cx.has_flag::<ZedPro>()
+                                    && cx.has_flag::<ZedProFeatureFlag>()
                                 {
                                     el.child(
                                         v_flex()
@@ -931,7 +931,7 @@ impl PromptEditor<BufferCodegen> {
                     .update(cx, |editor, _| editor.set_read_only(false));
             }
             CodegenStatus::Error(error) => {
-                if cx.has_flag::<ZedPro>()
+                if cx.has_flag::<ZedProFeatureFlag>()
                     && error.error_code() == proto::ErrorCode::RateLimitExceeded
                     && !dismissed_rate_limit_notice()
                 {

crates/agent/src/message_editor.rs

@@ -2,7 +2,7 @@ use std::collections::BTreeMap;
 use std::sync::Arc;
 
 use crate::assistant_model_selector::ModelType;
-use crate::context::{AssistantContext, format_context_as_string};
+use crate::context::{ContextLoadResult, load_context};
 use crate::tool_compatibility::{IncompatibleToolsState, IncompatibleToolsTooltip};
 use buffer_diff::BufferDiff;
 use collections::HashSet;
@@ -13,6 +13,8 @@ use editor::{
 };
 use file_icons::FileIcons;
 use fs::Fs;
+use futures::future::Shared;
+use futures::{FutureExt as _, future};
 use gpui::{
     Animation, AnimationExt, App, ClipboardEntry, Entity, EventEmitter, Focusable, Subscription,
     Task, TextStyle, WeakEntity, linear_color_stop, linear_gradient, point, pulsating_between,
@@ -22,6 +24,7 @@ use language_model::{ConfiguredModel, LanguageModelRegistry, LanguageModelReques
 use language_model_selector::ToggleModelSelector;
 use multi_buffer;
 use project::Project;
+use prompt_store::PromptStore;
 use settings::Settings;
 use std::time::Duration;
 use theme::ThemeSettings;
@@ -31,7 +34,7 @@ use workspace::Workspace;
 
 use crate::assistant_model_selector::AssistantModelSelector;
 use crate::context_picker::{ContextPicker, ContextPickerCompletionProvider};
-use crate::context_store::{ContextStore, refresh_context_store_text};
+use crate::context_store::ContextStore;
 use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
 use crate::profile_selector::ProfileSelector;
 use crate::thread::{Thread, TokenUsageRatio};
@@ -49,9 +52,12 @@ pub struct MessageEditor {
     workspace: WeakEntity<Workspace>,
     project: Entity<Project>,
     context_store: Entity<ContextStore>,
+    prompt_store: Option<Entity<PromptStore>>,
     context_strip: Entity<ContextStrip>,
     context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
     model_selector: Entity<AssistantModelSelector>,
+    last_loaded_context: Option<ContextLoadResult>,
+    context_load_task: Option<Shared<Task<()>>>,
     profile_selector: Entity<ProfileSelector>,
     edits_expanded: bool,
     editor_is_expanded: bool,
@@ -68,6 +74,7 @@ impl MessageEditor {
         fs: Arc<dyn Fs>,
         workspace: WeakEntity<Workspace>,
         context_store: Entity<ContextStore>,
+        prompt_store: Option<Entity<PromptStore>>,
         thread_store: WeakEntity<ThreadStore>,
         thread: Entity<Thread>,
         window: &mut Window,
@@ -135,13 +142,11 @@ impl MessageEditor {
         let subscriptions = vec![
             cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event),
             cx.subscribe(&editor, |this, _, event, cx| match event {
-                EditorEvent::BufferEdited => {
-                    this.message_or_context_changed(true, cx);
-                }
+                EditorEvent::BufferEdited => this.handle_message_changed(cx),
                 _ => {}
             }),
             cx.observe(&context_store, |this, _, cx| {
-                this.message_or_context_changed(false, cx);
+                let _ = this.start_context_load(cx);
             }),
         ];
 
@@ -152,8 +157,11 @@ impl MessageEditor {
             incompatible_tools_state: incompatible_tools.clone(),
             workspace,
             context_store,
+            prompt_store,
             context_strip,
             context_picker_menu_handle,
+            context_load_task: None,
+            last_loaded_context: None,
             model_selector: cx.new(|cx| {
                 AssistantModelSelector::new(
                     fs.clone(),
@@ -175,6 +183,10 @@ impl MessageEditor {
         }
     }
 
+    pub fn context_store(&self) -> &Entity<ContextStore> {
+        &self.context_store
+    }
+
     fn toggle_chat_mode(&mut self, _: &ChatMode, _window: &mut Window, cx: &mut Context<Self>) {
         cx.notify();
     }
@@ -195,6 +207,7 @@ impl MessageEditor {
                 editor.set_mode(EditorMode::Full {
                     scale_ui_elements_with_buffer_font_size: false,
                     show_active_line_background: false,
+                    sized_by_content: false,
                 })
             } else {
                 editor.set_mode(EditorMode::AutoHeight {
@@ -213,6 +226,7 @@ impl MessageEditor {
     ) {
         self.context_picker_menu_handle.toggle(window, cx);
     }
+
     pub fn remove_all_context(
         &mut self,
         _: &RemoveAllContext,
@@ -269,56 +283,44 @@ impl MessageEditor {
         self.last_estimated_token_count.take();
         cx.emit(MessageEditorEvent::EstimatedTokenCount);
 
-        let refresh_task =
-            refresh_context_store_text(self.context_store.clone(), &HashSet::default(), cx);
-        let wait_for_images = self.context_store.read(cx).wait_for_images(cx);
-
         let thread = self.thread.clone();
-        let context_store = self.context_store.clone();
         let git_store = self.project.read(cx).git_store().clone();
         let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
+        let context_task = self.load_context(cx);
+        let window_handle = window.window_handle();
 
-        cx.spawn(async move |this, cx| {
-            let checkpoint = checkpoint.await.ok();
-            refresh_task.await;
-            wait_for_images.await;
+        cx.spawn(async move |_this, cx| {
+            let (checkpoint, loaded_context) = future::join(checkpoint, context_task).await;
+            let loaded_context = loaded_context.unwrap_or_default();
 
             thread
                 .update(cx, |thread, cx| {
-                    let context = context_store.read(cx).context().clone();
-                    thread.insert_user_message(user_message, context, checkpoint, cx);
+                    thread.insert_user_message(user_message, loaded_context, checkpoint.ok(), cx);
                 })
                 .log_err();
 
-            context_store
-                .update(cx, |context_store, cx| {
-                    let excerpt_ids = context_store
-                        .context()
-                        .iter()
-                        .filter(|ctx| {
-                            matches!(
-                                ctx,
-                                AssistantContext::Selection(_) | AssistantContext::Image(_)
-                            )
-                        })
-                        .map(|ctx| ctx.id())
-                        .collect::<Vec<_>>();
-
-                    for id in excerpt_ids {
-                        context_store.remove_context(id, cx);
-                    }
+            thread
+                .update(cx, |thread, cx| {
+                    thread.advance_prompt_id();
+                    thread.send_to_model(model, Some(window_handle), cx);
                 })
                 .log_err();
+        })
+        .detach();
+    }
 
+    fn wait_for_summaries(&mut self, cx: &mut Context<Self>) -> Task<()> {
+        let context_store = self.context_store.clone();
+        cx.spawn(async move |this, cx| {
             if let Some(wait_for_summaries) = context_store
                 .update(cx, |context_store, cx| context_store.wait_for_summaries(cx))
-                .log_err()
+                .ok()
             {
                 this.update(cx, |this, cx| {
                     this.waiting_for_summaries_to_send = true;
                     cx.notify();
                 })
-                .log_err();
+                .ok();
 
                 wait_for_summaries.await;
 
@@ -326,24 +328,15 @@ impl MessageEditor {
                     this.waiting_for_summaries_to_send = false;
                     cx.notify();
                 })
-                .log_err();
+                .ok();
             }
-
-            // Send to model after summaries are done
-            thread
-                .update(cx, |thread, cx| {
-                    thread.advance_prompt_id();
-                    thread.send_to_model(model, cx);
-                })
-                .log_err();
         })
-        .detach();
     }
 
     fn stop_current_and_send_new_message(&mut self, window: &mut Window, cx: &mut Context<Self>) {
-        let cancelled = self
-            .thread
-            .update(cx, |thread, cx| thread.cancel_last_completion(cx));
+        let cancelled = self.thread.update(cx, |thread, cx| {
+            thread.cancel_last_completion(Some(window.window_handle()), cx)
+        });
 
         if cancelled {
             self.set_editor_is_expanded(false, cx);
@@ -405,8 +398,10 @@ impl MessageEditor {
         });
     }
 
-    fn handle_review_click(&self, window: &mut Window, cx: &mut Context<Self>) {
+    fn handle_review_click(&mut self, window: &mut Window, cx: &mut Context<Self>) {
+        self.edits_expanded = true;
         AgentDiff::deploy(self.thread.clone(), self.workspace.clone(), window, cx).log_err();
+        cx.notify();
     }
 
     fn handle_file_click(
@@ -1011,6 +1006,48 @@ impl MessageEditor {
         self.update_token_count_task.is_some()
     }
 
+    fn handle_message_changed(&mut self, cx: &mut Context<Self>) {
+        self.message_or_context_changed(true, cx);
+    }
+
+    fn start_context_load(&mut self, cx: &mut Context<Self>) -> Shared<Task<()>> {
+        let summaries_task = self.wait_for_summaries(cx);
+        let load_task = cx.spawn(async move |this, cx| {
+            // Waits for detailed summaries before `load_context`, as it directly reads these from
+            // the thread. TODO: Would be cleaner to have context loading await on summarization.
+            summaries_task.await;
+            let Ok(load_task) = this.update(cx, |this, cx| {
+                let new_context = this.context_store.read_with(cx, |context_store, cx| {
+                    context_store.new_context_for_thread(this.thread.read(cx))
+                });
+                load_context(new_context, &this.project, &this.prompt_store, cx)
+            }) else {
+                return;
+            };
+            let result = load_task.await;
+            this.update(cx, |this, cx| {
+                this.last_loaded_context = Some(result);
+                this.context_load_task = None;
+                this.message_or_context_changed(false, cx);
+            })
+            .ok();
+        });
+        // Replace existing load task, if any, causing it to be cancelled.
+        let load_task = load_task.shared();
+        self.context_load_task = Some(load_task.clone());
+        load_task
+    }
+
+    fn load_context(&mut self, cx: &mut Context<Self>) -> Task<Option<ContextLoadResult>> {
+        let context_load_task = self.start_context_load(cx);
+        cx.spawn(async move |this, cx| {
+            context_load_task.await;
+            this.read_with(cx, |this, _cx| this.last_loaded_context.clone())
+                .ok()
+                .flatten()
+        })
+    }
+
     fn message_or_context_changed(&mut self, debounce: bool, cx: &mut Context<Self>) {
         cx.emit(MessageEditorEvent::Changed);
         self.update_token_count_task.take();
@@ -1020,9 +1057,7 @@ impl MessageEditor {
             return;
         };
 
-        let context_store = self.context_store.clone();
         let editor = self.editor.clone();
-        let thread = self.thread.clone();
 
         self.update_token_count_task = Some(cx.spawn(async move |this, cx| {
             if debounce {
@@ -1031,27 +1066,33 @@ impl MessageEditor {
                     .await;
             }
 
-            let token_count = if let Some(task) = cx.update(|cx| {
-                let context = context_store.read(cx).context().iter();
-                let new_context = thread.read(cx).filter_new_context(context);
-                let context_text =
-                    format_context_as_string(new_context, cx).unwrap_or(String::new());
+            let token_count = if let Some(task) = this.update(cx, |this, cx| {
+                let loaded_context = this
+                    .last_loaded_context
+                    .as_ref()
+                    .map(|context_load_result| &context_load_result.loaded_context);
                 let message_text = editor.read(cx).text(cx);
 
-                let content = context_text + &message_text;
-
-                if content.is_empty() {
+                if message_text.is_empty()
+                    && loaded_context.map_or(true, |loaded_context| loaded_context.is_empty())
+                {
                     return None;
                 }
 
+                let mut request_message = LanguageModelRequestMessage {
+                    role: language_model::Role::User,
+                    content: Vec::new(),
+                    cache: false,
+                };
+
+                if let Some(loaded_context) = loaded_context {
+                    loaded_context.add_to_request_message(&mut request_message);
+                }
+
                 let request = language_model::LanguageModelRequest {
                     thread_id: None,
                     prompt_id: None,
-                    messages: vec![LanguageModelRequestMessage {
-                        role: language_model::Role::User,
-                        content: vec![content.into()],
-                        cache: false,
-                    }],
+                    messages: vec![request_message],
                     tools: vec![],
                     stop: vec![],
                     temperature: None,

crates/agent/src/terminal_codegen.rs

@@ -32,7 +32,7 @@ impl TerminalCodegen {
         }
     }
 
-    pub fn start(&mut self, prompt: LanguageModelRequest, cx: &mut Context<Self>) {
+    pub fn start(&mut self, prompt_task: Task<LanguageModelRequest>, cx: &mut Context<Self>) {
         let Some(ConfiguredModel { model, .. }) =
             LanguageModelRegistry::read_global(cx).inline_assistant_model()
         else {
@@ -45,6 +45,7 @@ impl TerminalCodegen {
         self.status = CodegenStatus::Pending;
         self.transaction = Some(TerminalTransaction::start(self.terminal.clone()));
         self.generation = cx.spawn(async move |this, cx| {
+            let prompt = prompt_task.await;
             let model_telemetry_id = model.telemetry_id();
             let model_provider_id = model.provider_id();
             let response = model.stream_completion_text(prompt, &cx).await;

crates/agent/src/terminal_inline_assistant.rs

@@ -1,4 +1,4 @@
-use crate::context::attach_context_to_message;
+use crate::context::load_context;
 use crate::context_store::ContextStore;
 use crate::inline_prompt_editor::{
     CodegenStatus, PromptEditor, PromptEditorEvent, TerminalInlineAssistId,
@@ -10,14 +10,14 @@ use client::telemetry::Telemetry;
 use collections::{HashMap, VecDeque};
 use editor::{MultiBuffer, actions::SelectAll};
 use fs::Fs;
-use gpui::{App, Entity, Focusable, Global, Subscription, UpdateGlobal, WeakEntity};
+use gpui::{App, Entity, Focusable, Global, Subscription, Task, UpdateGlobal, WeakEntity};
 use language::Buffer;
 use language_model::{
     ConfiguredModel, LanguageModelRegistry, LanguageModelRequest, LanguageModelRequestMessage,
     Role, report_assistant_event,
 };
 use project::Project;
-use prompt_store::PromptBuilder;
+use prompt_store::{PromptBuilder, PromptStore};
 use std::sync::Arc;
 use telemetry_events::{AssistantEventData, AssistantKind, AssistantPhase};
 use terminal_view::TerminalView;
@@ -69,6 +69,7 @@ impl TerminalInlineAssistant {
         terminal_view: &Entity<TerminalView>,
         workspace: WeakEntity<Workspace>,
         project: WeakEntity<Project>,
+        prompt_store: Option<Entity<PromptStore>>,
         thread_store: Option<WeakEntity<ThreadStore>>,
         window: &mut Window,
         cx: &mut App,
@@ -109,6 +110,7 @@ impl TerminalInlineAssistant {
             prompt_editor,
             workspace.clone(),
             context_store,
+            prompt_store,
             window,
             cx,
         );
@@ -196,11 +198,11 @@ impl TerminalInlineAssistant {
             .log_err();
 
         let codegen = assist.codegen.clone();
-        let Some(request) = self.request_for_inline_assist(assist_id, cx).log_err() else {
+        let Some(request_task) = self.request_for_inline_assist(assist_id, cx).log_err() else {
             return;
         };
 
-        codegen.update(cx, |codegen, cx| codegen.start(request, cx));
+        codegen.update(cx, |codegen, cx| codegen.start(request_task, cx));
     }
 
     fn stop_assist(&mut self, assist_id: TerminalInlineAssistId, cx: &mut App) {
@@ -217,7 +219,7 @@ impl TerminalInlineAssistant {
         &self,
         assist_id: TerminalInlineAssistId,
         cx: &mut App,
-    ) -> Result<LanguageModelRequest> {
+    ) -> Result<Task<LanguageModelRequest>> {
         let assist = self.assists.get(&assist_id).context("invalid assist")?;
 
         let shell = std::env::var("SHELL").ok();
@@ -246,28 +248,40 @@ impl TerminalInlineAssistant {
             &latest_output,
         )?;
 
-        let mut request_message = LanguageModelRequestMessage {
-            role: Role::User,
-            content: vec![],
-            cache: false,
-        };
+        let contexts = assist
+            .context_store
+            .read(cx)
+            .context()
+            .cloned()
+            .collect::<Vec<_>>();
+        let context_load_task = assist.workspace.update(cx, |workspace, cx| {
+            let project = workspace.project();
+            load_context(contexts, project, &assist.prompt_store, cx)
+        })?;
 
-        attach_context_to_message(
-            &mut request_message,
-            assist.context_store.read(cx).context().iter(),
-            cx,
-        );
+        Ok(cx.background_spawn(async move {
+            let mut request_message = LanguageModelRequestMessage {
+                role: Role::User,
+                content: vec![],
+                cache: false,
+            };
 
-        request_message.content.push(prompt.into());
+            context_load_task
+                .await
+                .loaded_context
+                .add_to_request_message(&mut request_message);
 
-        Ok(LanguageModelRequest {
-            thread_id: None,
-            prompt_id: None,
-            messages: vec![request_message],
-            tools: Vec::new(),
-            stop: Vec::new(),
-            temperature: None,
-        })
+            request_message.content.push(prompt.into());
+
+            LanguageModelRequest {
+                thread_id: None,
+                prompt_id: None,
+                messages: vec![request_message],
+                tools: Vec::new(),
+                stop: Vec::new(),
+                temperature: None,
+            }
+        }))
     }
 
     fn finish_assist(
@@ -380,6 +394,7 @@ struct TerminalInlineAssist {
     codegen: Entity<TerminalCodegen>,
     workspace: WeakEntity<Workspace>,
     context_store: Entity<ContextStore>,
+    prompt_store: Option<Entity<PromptStore>>,
     _subscriptions: Vec<Subscription>,
 }
 
@@ -390,6 +405,7 @@ impl TerminalInlineAssist {
         prompt_editor: Entity<PromptEditor<TerminalCodegen>>,
         workspace: WeakEntity<Workspace>,
         context_store: Entity<ContextStore>,
+        prompt_store: Option<Entity<PromptStore>>,
         window: &mut Window,
         cx: &mut App,
     ) -> Self {
@@ -400,6 +416,7 @@ impl TerminalInlineAssist {
             codegen: codegen.clone(),
             workspace: workspace.clone(),
             context_store,
+            prompt_store,
             _subscriptions: vec![
                 window.subscribe(&prompt_editor, cx, |prompt_editor, event, window, cx| {
                     TerminalInlineAssistant::update_global(cx, |this, cx| {

crates/agent/src/thread_store.rs

@@ -24,8 +24,8 @@ use heed::types::SerdeBincode;
 use language_model::{LanguageModelToolUseId, Role, TokenUsage};
 use project::{Project, Worktree};
 use prompt_store::{
-    ProjectContext, PromptBuilder, PromptId, PromptMetadata, PromptStore, PromptsUpdatedEvent,
-    RulesFileContext, UserPromptId, UserRulesContext, WorktreeContext,
+    ProjectContext, PromptBuilder, PromptId, PromptStore, PromptsUpdatedEvent, RulesFileContext,
+    UserRulesContext, WorktreeContext,
 };
 use serde::{Deserialize, Serialize};
 use settings::{Settings as _, SettingsStore};
@@ -82,12 +82,11 @@ impl ThreadStore {
     pub fn load(
         project: Entity<Project>,
         tools: Entity<ToolWorkingSet>,
+        prompt_store: Option<Entity<PromptStore>>,
         prompt_builder: Arc<PromptBuilder>,
         cx: &mut App,
     ) -> Task<Result<Entity<Self>>> {
-        let prompt_store = PromptStore::global(cx);
         cx.spawn(async move |cx| {
-            let prompt_store = prompt_store.await.ok();
             let (thread_store, ready_rx) = cx.update(|cx| {
                 let mut option_ready_rx = None;
                 let thread_store = cx.new(|cx| {
@@ -349,25 +348,8 @@ impl ThreadStore {
         self.context_server_manager.clone()
     }
 
-    pub fn prompt_store(&self) -> Option<Entity<PromptStore>> {
-        self.prompt_store.clone()
-    }
-
-    pub fn load_rules(
-        &self,
-        prompt_id: UserPromptId,
-        cx: &App,
-    ) -> Task<Result<(PromptMetadata, String)>> {
-        let prompt_id = PromptId::User { uuid: prompt_id };
-        let Some(prompt_store) = self.prompt_store.as_ref() else {
-            return Task::ready(Err(anyhow!("Prompt store unexpectedly missing.")));
-        };
-        let prompt_store = prompt_store.read(cx);
-        let Some(metadata) = prompt_store.metadata(prompt_id) else {
-            return Task::ready(Err(anyhow!("User rules not found in library.")));
-        };
-        let text_task = prompt_store.load(prompt_id, cx);
-        cx.background_spawn(async move { Ok((metadata, text_task.await?)) })
+    pub fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
+        &self.prompt_store
     }
 
     pub fn tools(&self) -> Entity<ToolWorkingSet> {
@@ -379,16 +361,12 @@ impl ThreadStore {
         self.threads.len()
     }
 
-    pub fn threads(&self) -> Vec<SerializedThreadMetadata> {
+    pub fn reverse_chronological_threads(&self) -> Vec<SerializedThreadMetadata> {
         let mut threads = self.threads.iter().cloned().collect::<Vec<_>>();
         threads.sort_unstable_by_key(|thread| std::cmp::Reverse(thread.updated_at));
         threads
     }
 
-    pub fn recent_threads(&self, limit: usize) -> Vec<SerializedThreadMetadata> {
-        self.threads().into_iter().take(limit).collect()
-    }
-
     pub fn create_thread(&mut self, cx: &mut Context<Self>) -> Entity<Thread> {
         cx.new(|cx| {
             Thread::new(
@@ -639,12 +617,17 @@ pub struct SerializedThread {
 }
 
 impl SerializedThread {
-    pub const VERSION: &'static str = "0.1.0";
+    pub const VERSION: &'static str = "0.2.0";
 
     pub fn from_json(json: &[u8]) -> Result<Self> {
         let saved_thread_json = serde_json::from_slice::<serde_json::Value>(json)?;
         match saved_thread_json.get("version") {
             Some(serde_json::Value::String(version)) => match version.as_str() {
+                SerializedThreadV0_1_0::VERSION => {
+                    let saved_thread =
+                        serde_json::from_value::<SerializedThreadV0_1_0>(saved_thread_json)?;
+                    Ok(saved_thread.upgrade())
+                }
                 SerializedThread::VERSION => Ok(serde_json::from_value::<SerializedThread>(
                     saved_thread_json,
                 )?),
@@ -666,6 +649,38 @@ impl SerializedThread {
     }
 }
 
+#[derive(Serialize, Deserialize, Debug)]
+pub struct SerializedThreadV0_1_0(
+    // The structure did not change, so we are reusing the latest SerializedThread.
+    // When making the next version, make sure this points to SerializedThreadV0_2_0
+    SerializedThread,
+);
+
+impl SerializedThreadV0_1_0 {
+    pub const VERSION: &'static str = "0.1.0";
+
+    pub fn upgrade(self) -> SerializedThread {
+        debug_assert_eq!(SerializedThread::VERSION, "0.2.0");
+
+        let mut messages: Vec<SerializedMessage> = Vec::with_capacity(self.0.messages.len());
+
+        for message in self.0.messages {
+            if message.role == Role::User && !message.tool_results.is_empty() {
+                if let Some(last_message) = messages.last_mut() {
+                    debug_assert!(last_message.role == Role::Assistant);
+
+                    last_message.tool_results = message.tool_results;
+                    continue;
+                }
+            }
+
+            messages.push(message);
+        }
+
+        SerializedThread { messages, ..self.0 }
+    }
+}
+
 #[derive(Debug, Serialize, Deserialize)]
 pub struct SerializedMessage {
     pub id: MessageId,

crates/agent/src/tool_use.rs

@@ -30,7 +30,6 @@ pub struct ToolUse {
 pub struct ToolUseState {
     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>,
     pending_tool_uses_by_id: HashMap<LanguageModelToolUseId, PendingToolUse>,
     tool_result_cards: HashMap<LanguageModelToolUseId, AnyToolCard>,
@@ -42,7 +41,6 @@ impl ToolUseState {
         Self {
             tools,
             tool_uses_by_assistant_message: HashMap::default(),
-            tool_uses_by_user_message: HashMap::default(),
             tool_results: HashMap::default(),
             pending_tool_uses_by_id: HashMap::default(),
             tool_result_cards: HashMap::default(),
@@ -56,7 +54,6 @@ impl ToolUseState {
     pub fn from_serialized_messages(
         tools: Entity<ToolWorkingSet>,
         messages: &[SerializedMessage],
-        mut filter_by_tool_name: impl FnMut(&str) -> bool,
     ) -> Self {
         let mut this = Self::new(tools);
         let mut tool_names_by_id = HashMap::default();
@@ -68,10 +65,10 @@ impl ToolUseState {
                         let tool_uses = message
                             .tool_uses
                             .iter()
-                            .filter(|tool_use| (filter_by_tool_name)(tool_use.name.as_ref()))
                             .map(|tool_use| LanguageModelToolUse {
                                 id: tool_use.id.clone(),
                                 name: tool_use.name.clone().into(),
+                                raw_input: tool_use.input.to_string(),
                                 input: tool_use.input.clone(),
                                 is_input_complete: true,
                             })
@@ -85,14 +82,6 @@ impl ToolUseState {
 
                         this.tool_uses_by_assistant_message
                             .insert(message.id, tool_uses);
-                    }
-                }
-                Role::User => {
-                    if !message.tool_results.is_empty() {
-                        let tool_uses_by_user_message = this
-                            .tool_uses_by_user_message
-                            .entry(message.id)
-                            .or_default();
 
                         for tool_result in &message.tool_results {
                             let tool_use_id = tool_result.tool_use_id.clone();
@@ -101,11 +90,6 @@ impl ToolUseState {
                                 continue;
                             };
 
-                            if !(filter_by_tool_name)(tool_use.as_ref()) {
-                                continue;
-                            }
-
-                            tool_uses_by_user_message.push(tool_use_id.clone());
                             this.tool_results.insert(
                                 tool_use_id.clone(),
                                 LanguageModelToolResult {
@@ -118,7 +102,7 @@ impl ToolUseState {
                         }
                     }
                 }
-                Role::System => {}
+                Role::System | Role::User => {}
             }
         }
 
@@ -228,20 +212,26 @@ impl ToolUseState {
         }
     }
 
-    pub fn tool_results_for_message(&self, message_id: MessageId) -> Vec<&LanguageModelToolResult> {
-        let empty = Vec::new();
+    pub fn tool_results_for_message(
+        &self,
+        assistant_message_id: MessageId,
+    ) -> Vec<&LanguageModelToolResult> {
+        let Some(tool_uses) = self
+            .tool_uses_by_assistant_message
+            .get(&assistant_message_id)
+        else {
+            return Vec::new();
+        };
 
-        self.tool_uses_by_user_message
-            .get(&message_id)
-            .unwrap_or(&empty)
+        tool_uses
             .iter()
-            .filter_map(|tool_use_id| self.tool_results.get(&tool_use_id))
+            .filter_map(|tool_use| self.tool_results.get(&tool_use.id))
             .collect()
     }
 
-    pub fn message_has_tool_results(&self, message_id: MessageId) -> bool {
-        self.tool_uses_by_user_message
-            .get(&message_id)
+    pub fn message_has_tool_results(&self, assistant_message_id: MessageId) -> bool {
+        self.tool_uses_by_assistant_message
+            .get(&assistant_message_id)
             .map_or(false, |results| !results.is_empty())
     }
 
@@ -293,14 +283,6 @@ impl ToolUseState {
             self.tool_use_metadata_by_id
                 .insert(tool_use.id.clone(), metadata);
 
-            // The tool use is being requested by the Assistant, so we want to
-            // attach the tool results to the next user message.
-            let next_user_message_id = MessageId(assistant_message_id.0 + 1);
-            self.tool_uses_by_user_message
-                .entry(next_user_message_id)
-                .or_default()
-                .push(tool_use.id.clone());
-
             PendingToolUseStatus::Idle
         } else {
             PendingToolUseStatus::InputStillStreaming
@@ -466,31 +448,49 @@ impl ToolUseState {
         }
     }
 
-    pub fn attach_tool_results(
+    pub fn has_tool_results(&self, assistant_message_id: MessageId) -> bool {
+        self.tool_uses_by_assistant_message
+            .contains_key(&assistant_message_id)
+    }
+
+    pub fn tool_results_message(
         &self,
-        message_id: MessageId,
-        request_message: &mut LanguageModelRequestMessage,
-    ) {
-        if let Some(tool_uses) = self.tool_uses_by_user_message.get(&message_id) {
-            for tool_use_id in tool_uses {
-                if let Some(tool_result) = self.tool_results.get(tool_use_id) {
-                    request_message.content.push(MessageContent::ToolResult(
-                        LanguageModelToolResult {
-                            tool_use_id: tool_use_id.clone(),
-                            tool_name: tool_result.tool_name.clone(),
-                            is_error: tool_result.is_error,
-                            content: if tool_result.content.is_empty() {
-                                // Surprisingly, the API fails if we return an empty string here.
-                                // It thinks we are sending a tool use without a tool result.
-                                "<Tool returned an empty string>".into()
-                            } else {
-                                tool_result.content.clone()
-                            },
+        assistant_message_id: MessageId,
+    ) -> Option<LanguageModelRequestMessage> {
+        let tool_uses = self
+            .tool_uses_by_assistant_message
+            .get(&assistant_message_id)?;
+
+        if tool_uses.is_empty() {
+            return None;
+        }
+
+        let mut request_message = LanguageModelRequestMessage {
+            role: Role::User,
+            content: vec![],
+            cache: false,
+        };
+
+        for tool_use in tool_uses {
+            if let Some(tool_result) = self.tool_results.get(&tool_use.id) {
+                request_message
+                    .content
+                    .push(MessageContent::ToolResult(LanguageModelToolResult {
+                        tool_use_id: tool_use.id.clone(),
+                        tool_name: tool_result.tool_name.clone(),
+                        is_error: tool_result.is_error,
+                        content: if tool_result.content.is_empty() {
+                            // Surprisingly, the API fails if we return an empty string here.
+                            // It thinks we are sending a tool use without a tool result.
+                            "<Tool returned an empty string>".into()
+                        } else {
+                            tool_result.content.clone()
                         },
-                    ));
-                }
+                    }));
             }
         }
+
+        Some(request_message)
     }
 }
 

crates/agent/src/ui.rs

@@ -1,7 +1,9 @@
 mod agent_notification;
+mod animated_label;
 mod context_pill;
 mod usage_banner;
 
 pub use agent_notification::*;
+pub use animated_label::*;
 pub use context_pill::*;
 pub use usage_banner::*;

crates/agent/src/ui/animated_label.rs

@@ -0,0 +1,121 @@
+use gpui::{Animation, AnimationExt, FontWeight, pulsating_between};
+use std::time::Duration;
+use ui::prelude::*;
+
+#[derive(IntoElement)]
+pub struct AnimatedLabel {
+    base: Label,
+    text: SharedString,
+}
+
+impl AnimatedLabel {
+    pub fn new(text: impl Into<SharedString>) -> Self {
+        let text = text.into();
+        AnimatedLabel {
+            base: Label::new(text.clone()),
+            text,
+        }
+    }
+}
+
+impl LabelCommon for AnimatedLabel {
+    fn size(mut self, size: LabelSize) -> Self {
+        self.base = self.base.size(size);
+        self
+    }
+
+    fn weight(mut self, weight: FontWeight) -> Self {
+        self.base = self.base.weight(weight);
+        self
+    }
+
+    fn line_height_style(mut self, line_height_style: LineHeightStyle) -> Self {
+        self.base = self.base.line_height_style(line_height_style);
+        self
+    }
+
+    fn color(mut self, color: Color) -> Self {
+        self.base = self.base.color(color);
+        self
+    }
+
+    fn strikethrough(mut self) -> Self {
+        self.base = self.base.strikethrough();
+        self
+    }
+
+    fn italic(mut self) -> Self {
+        self.base = self.base.italic();
+        self
+    }
+
+    fn alpha(mut self, alpha: f32) -> Self {
+        self.base = self.base.alpha(alpha);
+        self
+    }
+
+    fn underline(mut self) -> Self {
+        self.base = self.base.underline();
+        self
+    }
+
+    fn truncate(mut self) -> Self {
+        self.base = self.base.truncate();
+        self
+    }
+
+    fn single_line(mut self) -> Self {
+        self.base = self.base.single_line();
+        self
+    }
+
+    fn buffer_font(mut self, cx: &App) -> Self {
+        self.base = self.base.buffer_font(cx);
+        self
+    }
+
+    fn inline_code(mut self, cx: &App) -> Self {
+        self.base = self.base.inline_code(cx);
+        self
+    }
+}
+
+impl RenderOnce for AnimatedLabel {
+    fn render(self, _window: &mut Window, _cx: &mut App) -> impl IntoElement {
+        let text = self.text.clone();
+
+        self.base
+            .color(Color::Muted)
+            .with_animations(
+                "animated-label",
+                vec![
+                    Animation::new(Duration::from_secs(1)),
+                    Animation::new(Duration::from_secs(1)).repeat(),
+                ],
+                move |mut label, animation_ix, delta| {
+                    match animation_ix {
+                        0 => {
+                            let chars_to_show = (delta * text.len() as f32).ceil() as usize;
+                            let text = SharedString::from(text[0..chars_to_show].to_string());
+                            label.set_text(text);
+                        }
+                        1 => match delta {
+                            d if d < 0.25 => label.set_text(text.clone()),
+                            d if d < 0.5 => label.set_text(format!("{}.", text)),
+                            d if d < 0.75 => label.set_text(format!("{}..", text)),
+                            _ => label.set_text(format!("{}...", text)),
+                        },
+                        _ => {}
+                    }
+                    label
+                },
+            )
+            .with_animation(
+                "pulsating-label",
+                Animation::new(Duration::from_secs(2))
+                    .repeat()
+                    .with_easing(pulsating_between(0.6, 1.)),
+                |label, delta| label.map_element(|label| label.alpha(delta)),
+            )
+    }
+}

crates/agent/src/ui/context_pill.rs

@@ -1,14 +1,13 @@
-use std::sync::Arc;
 use std::{rc::Rc, time::Duration};
 
 use file_icons::FileIcons;
-use futures::FutureExt;
-use gpui::{Animation, AnimationExt as _, Image, MouseButton, pulsating_between};
-use gpui::{ClickEvent, Task};
-use language_model::LanguageModelImage;
+use gpui::{Animation, AnimationExt as _, ClickEvent, Entity, MouseButton, pulsating_between};
+use project::Project;
+use prompt_store::PromptStore;
+use text::OffsetRangeExt;
 use ui::{IconButtonShape, Tooltip, prelude::*, tooltip_container};
 
-use crate::context::{AssistantContext, ContextId, ContextKind, ImageContext};
+use crate::context::{AgentContext, ContextKind, ImageStatus};
 
 #[derive(IntoElement)]
 pub enum ContextPill {
@@ -73,9 +72,7 @@ impl ContextPill {
 
     pub fn id(&self) -> ElementId {
         match self {
-            Self::Added { context, .. } => {
-                ElementId::NamedInteger("context-pill".into(), context.id.0)
-            }
+            Self::Added { context, .. } => context.context.element_id("context-pill".into()),
             Self::Suggested { .. } => "suggested-context-pill".into(),
         }
     }
@@ -199,14 +196,17 @@ impl RenderOnce for ContextPill {
                     )
                     .when_some(on_remove.as_ref(), |element, on_remove| {
                         element.child(
-                            IconButton::new(("remove", context.id.0), IconName::Close)
-                                .shape(IconButtonShape::Square)
-                                .icon_size(IconSize::XSmall)
-                                .tooltip(Tooltip::text("Remove Context"))
-                                .on_click({
-                                    let on_remove = on_remove.clone();
-                                    move |event, window, cx| on_remove(event, window, cx)
-                                }),
+                            IconButton::new(
+                                context.context.element_id("remove".into()),
+                                IconName::Close,
+                            )
+                            .shape(IconButtonShape::Square)
+                            .icon_size(IconSize::XSmall)
+                            .tooltip(Tooltip::text("Remove Context"))
+                            .on_click({
+                                let on_remove = on_remove.clone();
+                                move |event, window, cx| on_remove(event, window, cx)
+                            }),
                         )
                     })
                     .when_some(on_click.as_ref(), |element, on_click| {
@@ -262,9 +262,11 @@ pub enum ContextStatus {
     Error { message: SharedString },
 }
 
-#[derive(RegisterComponent)]
+// TODO: Component commented out due to new dependency on `Project`.
+//
+// #[derive(RegisterComponent)]
 pub struct AddedContext {
-    pub id: ContextId,
+    pub context: AgentContext,
     pub kind: ContextKind,
     pub name: SharedString,
     pub parent: Option<SharedString>,
@@ -275,10 +277,19 @@ pub struct AddedContext {
 }
 
 impl AddedContext {
-    pub fn new(context: &AssistantContext, cx: &App) -> AddedContext {
+    /// Creates an `AddedContext` by retrieving relevant details of `AgentContext`. This returns a
+    /// `None` if `DirectoryContext` or `RulesContext` no longer exist.
+    ///
+    /// TODO: `None` cases are unremovable from `ContextStore` and so are a very minor memory leak.
+    pub fn new(
+        context: AgentContext,
+        prompt_store: Option<&Entity<PromptStore>>,
+        project: &Project,
+        cx: &App,
+    ) -> Option<AddedContext> {
         match context {
-            AssistantContext::File(file_context) => {
-                let full_path = file_context.context_buffer.full_path(cx);
+            AgentContext::File(ref file_context) => {
+                let full_path = file_context.buffer.read(cx).file()?.full_path(cx);
                 let full_path_string: SharedString =
                     full_path.to_string_lossy().into_owned().into();
                 let name = full_path
@@ -289,8 +300,7 @@ impl AddedContext {
                     .parent()
                     .and_then(|p| p.file_name())
                     .map(|n| n.to_string_lossy().into_owned().into());
-                AddedContext {
-                    id: file_context.id,
+                Some(AddedContext {
                     kind: ContextKind::File,
                     name,
                     parent,
@@ -298,18 +308,16 @@ impl AddedContext {
                     icon_path: FileIcons::get_icon(&full_path, cx),
                     status: ContextStatus::Ready,
                     render_preview: None,
-                }
+                    context,
+                })
             }
 
-            AssistantContext::Directory(directory_context) => {
-                let worktree = directory_context.worktree.read(cx);
-                // If the directory no longer exists, use its last known path.
-                let full_path = worktree
-                    .entry_for_id(directory_context.entry_id)
-                    .map_or_else(
-                        || directory_context.last_path.clone(),
-                        |entry| worktree.full_path(&entry.path).into(),
-                    );
+            AgentContext::Directory(ref directory_context) => {
+                let worktree = project
+                    .worktree_for_entry(directory_context.entry_id, cx)?
+                    .read(cx);
+                let entry = worktree.entry_for_id(directory_context.entry_id)?;
+                let full_path = worktree.full_path(&entry.path);
                 let full_path_string: SharedString =
                     full_path.to_string_lossy().into_owned().into();
                 let name = full_path
@@ -320,8 +328,7 @@ impl AddedContext {
                     .parent()
                     .and_then(|p| p.file_name())
                     .map(|n| n.to_string_lossy().into_owned().into());
-                AddedContext {
-                    id: directory_context.id,
+                Some(AddedContext {
                     kind: ContextKind::Directory,
                     name,
                     parent,
@@ -329,33 +336,34 @@ impl AddedContext {
                     icon_path: None,
                     status: ContextStatus::Ready,
                     render_preview: None,
-                }
+                    context,
+                })
             }
 
-            AssistantContext::Symbol(symbol_context) => AddedContext {
-                id: symbol_context.id,
+            AgentContext::Symbol(ref symbol_context) => Some(AddedContext {
                 kind: ContextKind::Symbol,
-                name: symbol_context.context_symbol.id.name.clone(),
+                name: symbol_context.symbol.clone(),
                 parent: None,
                 tooltip: None,
                 icon_path: None,
                 status: ContextStatus::Ready,
                 render_preview: None,
-            },
+                context,
+            }),
 
-            AssistantContext::Selection(selection_context) => {
-                let full_path = selection_context.context_buffer.full_path(cx);
+            AgentContext::Selection(ref selection_context) => {
+                let buffer = selection_context.buffer.read(cx);
+                let full_path = buffer.file()?.full_path(cx);
                 let mut full_path_string = full_path.to_string_lossy().into_owned();
                 let mut name = full_path
                     .file_name()
                     .map(|n| n.to_string_lossy().into_owned())
                     .unwrap_or_else(|| full_path_string.clone());
 
-                let line_range_text = format!(
-                    " ({}-{})",
-                    selection_context.line_range.start.row + 1,
-                    selection_context.line_range.end.row + 1
-                );
+                let line_range = selection_context.range.to_point(&buffer.snapshot());
+
+                let line_range_text =
+                    format!(" ({}-{})", line_range.start.row + 1, line_range.end.row + 1);
 
                 full_path_string.push_str(&line_range_text);
                 name.push_str(&line_range_text);
@@ -365,16 +373,17 @@ impl AddedContext {
                     .and_then(|p| p.file_name())
                     .map(|n| n.to_string_lossy().into_owned().into());
 
-                AddedContext {
-                    id: selection_context.id,
+                Some(AddedContext {
                     kind: ContextKind::Selection,
                     name: name.into(),
                     parent,
                     tooltip: None,
                     icon_path: FileIcons::get_icon(&full_path, cx),
                     status: ContextStatus::Ready,
+                    render_preview: None,
+                    /*
                     render_preview: Some(Rc::new({
-                        let content = selection_context.context_buffer.text.clone();
+                        let content = selection_context.text.clone();
                         move |_, cx| {
                             div()
                                 .id("context-pill-selection-preview")
@@ -385,11 +394,12 @@ impl AddedContext {
                                 .into_any_element()
                         }
                     })),
-                }
+                    */
+                    context,
+                })
             }
 
-            AssistantContext::FetchedUrl(fetched_url_context) => AddedContext {
-                id: fetched_url_context.id,
+            AgentContext::FetchedUrl(ref fetched_url_context) => Some(AddedContext {
                 kind: ContextKind::FetchedUrl,
                 name: fetched_url_context.url.clone(),
                 parent: None,
@@ -397,12 +407,12 @@ impl AddedContext {
                 icon_path: None,
                 status: ContextStatus::Ready,
                 render_preview: None,
-            },
+                context,
+            }),
 
-            AssistantContext::Thread(thread_context) => AddedContext {
-                id: thread_context.id,
+            AgentContext::Thread(ref thread_context) => Some(AddedContext {
                 kind: ContextKind::Thread,
-                name: thread_context.summary(cx),
+                name: thread_context.name(cx),
                 parent: None,
                 tooltip: None,
                 icon_path: None,
@@ -418,36 +428,41 @@ impl AddedContext {
                     ContextStatus::Ready
                 },
                 render_preview: None,
-            },
+                context,
+            }),
 
-            AssistantContext::Rules(user_rules_context) => AddedContext {
-                id: user_rules_context.id,
-                kind: ContextKind::Rules,
-                name: user_rules_context.title.clone(),
-                parent: None,
-                tooltip: None,
-                icon_path: None,
-                status: ContextStatus::Ready,
-                render_preview: None,
-            },
+            AgentContext::Rules(ref user_rules_context) => {
+                let name = prompt_store
+                    .as_ref()?
+                    .read(cx)
+                    .metadata(user_rules_context.prompt_id.into())?
+                    .title?;
+                Some(AddedContext {
+                    kind: ContextKind::Rules,
+                    name: name.clone(),
+                    parent: None,
+                    tooltip: None,
+                    icon_path: None,
+                    status: ContextStatus::Ready,
+                    render_preview: None,
+                    context,
+                })
+            }
 
-            AssistantContext::Image(image_context) => AddedContext {
-                id: image_context.id,
+            AgentContext::Image(ref image_context) => Some(AddedContext {
                 kind: ContextKind::Image,
                 name: "Image".into(),
                 parent: None,
                 tooltip: None,
                 icon_path: None,
-                status: if image_context.is_loading() {
-                    ContextStatus::Loading {
+                status: match image_context.status() {
+                    ImageStatus::Loading => ContextStatus::Loading {
                         message: "Loading…".into(),
-                    }
-                } else if image_context.is_error() {
-                    ContextStatus::Error {
+                    },
+                    ImageStatus::Error => ContextStatus::Error {
                         message: "Failed to load image".into(),
-                    }
-                } else {
-                    ContextStatus::Ready
+                    },
+                    ImageStatus::Ready => ContextStatus::Ready,
                 },
                 render_preview: Some(Rc::new({
                     let image = image_context.original_image.clone();
@@ -458,7 +473,8 @@ impl AddedContext {
                             .into_any_element()
                     }
                 })),
-            },
+                context,
+            }),
         }
     }
 }
@@ -478,6 +494,8 @@ impl Render for ContextPillPreview {
     }
 }
 
+// TODO: Component commented out due to new dependency on `Project`.
+/*
 impl Component for AddedContext {
     fn scope() -> ComponentScope {
         ComponentScope::Agent
@@ -487,12 +505,13 @@ impl Component for AddedContext {
         "AddedContext"
     }
 
-    fn preview(_window: &mut Window, cx: &mut App) -> Option<AnyElement> {
+    fn preview(_window: &mut Window, _cx: &mut App) -> Option<AnyElement> {
+        let next_context_id = ContextId::zero();
         let image_ready = (
             "Ready",
             AddedContext::new(
-                &AssistantContext::Image(ImageContext {
-                    id: ContextId(0),
+                AgentContext::Image(ImageContext {
+                    context_id: next_context_id.post_inc(),
                     original_image: Arc::new(Image::empty()),
                     image_task: Task::ready(Some(LanguageModelImage::empty())).shared(),
                 }),
@@ -503,8 +522,8 @@ impl Component for AddedContext {
         let image_loading = (
             "Loading",
             AddedContext::new(
-                &AssistantContext::Image(ImageContext {
-                    id: ContextId(1),
+                AgentContext::Image(ImageContext {
+                    context_id: next_context_id.post_inc(),
                     original_image: Arc::new(Image::empty()),
                     image_task: cx
                         .background_spawn(async move {
@@ -520,8 +539,8 @@ impl Component for AddedContext {
         let image_error = (
             "Error",
             AddedContext::new(
-                &AssistantContext::Image(ImageContext {
-                    id: ContextId(2),
+                AgentContext::Image(ImageContext {
+                    context_id: next_context_id.post_inc(),
                     original_image: Arc::new(Image::empty()),
                     image_task: Task::ready(None).shared(),
                 }),
@@ -544,5 +563,8 @@ impl Component for AddedContext {
                 )
                 .into_any(),
         )
+
+        None
     }
 }
+*/

crates/agent/src/ui/usage_banner.rs

@@ -1,31 +1,30 @@
 use client::zed_urls;
+use language_model::RequestUsage;
 use ui::{Banner, ProgressBar, Severity, prelude::*};
 use zed_llm_client::{Plan, UsageLimit};
 
 #[derive(IntoElement, RegisterComponent)]
 pub struct UsageBanner {
     plan: Plan,
-    requests: i32,
+    usage: RequestUsage,
 }
 
 impl UsageBanner {
-    pub fn new(plan: Plan, requests: i32) -> Self {
-        Self { plan, requests }
+    pub fn new(plan: Plan, usage: RequestUsage) -> Self {
+        Self { plan, usage }
     }
 }
 
 impl RenderOnce for UsageBanner {
     fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
-        let request_limit = self.plan.model_requests_limit();
-
-        let used_percentage = match request_limit {
-            UsageLimit::Limited(limit) => Some((self.requests as f32 / limit as f32) * 100.),
+        let used_percentage = match self.usage.limit {
+            UsageLimit::Limited(limit) => Some((self.usage.amount as f32 / limit as f32) * 100.),
             UsageLimit::Unlimited => None,
         };
 
-        let (severity, message) = match request_limit {
+        let (severity, message) = match self.usage.limit {
             UsageLimit::Limited(limit) => {
-                if self.requests >= limit {
+                if self.usage.amount >= limit {
                     let message = match self.plan {
                         Plan::ZedPro => "Monthly request limit reached",
                         Plan::ZedProTrial => "Trial request limit reached",
@@ -33,7 +32,7 @@ impl RenderOnce for UsageBanner {
                     };
 
                     (Severity::Error, message)
-                } else if (self.requests as f32 / limit as f32) >= 0.9 {
+                } else if (self.usage.amount as f32 / limit as f32) >= 0.9 {
                     (Severity::Warning, "Approaching request limit")
                 } else {
                     let message = match self.plan {
@@ -81,11 +80,11 @@ impl RenderOnce for UsageBanner {
                             .child(ProgressBar::new("usage", percent, 100., cx))
                     }))
                     .child(
-                        Label::new(match request_limit {
+                        Label::new(match self.usage.limit {
                             UsageLimit::Limited(limit) => {
-                                format!("{} / {limit}", self.requests)
+                                format!("{} / {limit}", self.usage.amount)
                             }
-                            UsageLimit::Unlimited => format!("{} / ∞", self.requests),
+                            UsageLimit::Unlimited => format!("{} / ∞", self.usage.amount),
                         })
                         .size(LabelSize::Small)
                         .color(Color::Muted),
@@ -104,74 +103,131 @@ impl Component for UsageBanner {
     }
 
     fn preview(_window: &mut Window, _cx: &mut App) -> Option<AnyElement> {
+        let trial_limit = Plan::ZedProTrial.model_requests_limit();
         let trial_examples = vec![
             single_example(
                 "Zed Pro Trial - New User",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::ZedProTrial, 10))
+                    .child(UsageBanner::new(
+                        Plan::ZedProTrial,
+                        RequestUsage {
+                            limit: trial_limit,
+                            amount: 10,
+                        },
+                    ))
                     .into_any_element(),
             ),
             single_example(
                 "Zed Pro Trial - Approaching Limit",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::ZedProTrial, 135))
+                    .child(UsageBanner::new(
+                        Plan::ZedProTrial,
+                        RequestUsage {
+                            limit: trial_limit,
+                            amount: 135,
+                        },
+                    ))
                     .into_any_element(),
             ),
             single_example(
                 "Zed Pro Trial - Request Limit Reached",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::ZedProTrial, 150))
+                    .child(UsageBanner::new(
+                        Plan::ZedProTrial,
+                        RequestUsage {
+                            limit: trial_limit,
+                            amount: 150,
+                        },
+                    ))
                     .into_any_element(),
             ),
         ];
 
+        let free_limit = Plan::Free.model_requests_limit();
         let free_examples = vec![
             single_example(
                 "Free - Normal Usage",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::Free, 25))
+                    .child(UsageBanner::new(
+                        Plan::Free,
+                        RequestUsage {
+                            limit: free_limit,
+                            amount: 25,
+                        },
+                    ))
                     .into_any_element(),
             ),
             single_example(
                 "Free - Approaching Limit",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::Free, 45))
+                    .child(UsageBanner::new(
+                        Plan::Free,
+                        RequestUsage {
+                            limit: free_limit,
+                            amount: 45,
+                        },
+                    ))
                     .into_any_element(),
             ),
             single_example(
                 "Free - Request Limit Reached",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::Free, 50))
+                    .child(UsageBanner::new(
+                        Plan::Free,
+                        RequestUsage {
+                            limit: free_limit,
+                            amount: 50,
+                        },
+                    ))
                     .into_any_element(),
             ),
         ];
 
+        let zed_pro_limit = Plan::ZedPro.model_requests_limit();
         let zed_pro_examples = vec![
             single_example(
                 "Zed Pro - Normal Usage",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::ZedPro, 250))
+                    .child(UsageBanner::new(
+                        Plan::ZedPro,
+                        RequestUsage {
+                            limit: zed_pro_limit,
+                            amount: 250,
+                        },
+                    ))
                     .into_any_element(),
             ),
             single_example(
                 "Zed Pro - Approaching Limit",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::ZedPro, 450))
+                    .child(UsageBanner::new(
+                        Plan::ZedPro,
+                        RequestUsage {
+                            limit: zed_pro_limit,
+                            amount: 450,
+                        },
+                    ))
                     .into_any_element(),
             ),
             single_example(
                 "Zed Pro - Request Limit Reached",
                 div()
                     .size_full()
-                    .child(UsageBanner::new(Plan::ZedPro, 500))
+                    .child(UsageBanner::new(
+                        Plan::ZedPro,
+                        RequestUsage {
+                            limit: zed_pro_limit,
+                            amount: 500,
+                        },
+                    ))
                     .into_any_element(),
             ),
         ];

crates/anthropic/src/anthropic.rs

@@ -1,5 +1,3 @@
-mod supported_countries;
-
 use std::str::FromStr;
 
 use anyhow::{Context as _, Result, anyhow};
@@ -11,8 +9,6 @@ use serde::{Deserialize, Serialize};
 use strum::{EnumIter, EnumString};
 use thiserror::Error;
 
-pub use supported_countries::*;
-
 pub const ANTHROPIC_API_URL: &str = "https://api.anthropic.com";
 
 #[cfg_attr(feature = "schemars", derive(schemars::JsonSchema))]

crates/anthropic/src/supported_countries.rs

@@ -1,225 +0,0 @@
-use std::collections::HashSet;
-use std::sync::LazyLock;
-
-/// Returns whether the given country code is supported by Anthropic.
-///
-/// <https://www.anthropic.com/supported-countries>
-pub fn is_supported_country(country_code: &str) -> bool {
-    SUPPORTED_COUNTRIES.contains(&country_code)
-}
-
-/// The list of country codes supported by Anthropic.
-///
-/// https://www.anthropic.com/supported-countries
-static SUPPORTED_COUNTRIES: LazyLock<HashSet<&'static str>> = LazyLock::new(|| {
-    vec![
-        "AL", // Albania
-        "DZ", // Algeria
-        "AS", // American Samoa (US)
-        "AD", // Andorra
-        "AO", // Angola
-        "AI", // Anguilla (UK)
-        "AG", // Antigua and Barbuda
-        "AR", // Argentina
-        "AM", // Armenia
-        "AU", // Australia
-        "AT", // Austria
-        "AZ", // Azerbaijan
-        "BS", // Bahamas
-        "BH", // Bahrain
-        "BD", // Bangladesh
-        "BB", // Barbados
-        "BE", // Belgium
-        "BZ", // Belize
-        "BJ", // Benin
-        "BM", // Bermuda (UK)
-        "BT", // Bhutan
-        "BO", // Bolivia
-        "BA", // Bosnia and Herzegovina
-        "BW", // Botswana
-        "BR", // Brazil
-        "IO", // British Indian Ocean Territory (UK)
-        "BN", // Brunei
-        "BG", // Bulgaria
-        "BF", // Burkina Faso
-        "BI", // Burundi
-        "CV", // Cabo Verde
-        "KH", // Cambodia
-        "CM", // Cameroon
-        "CA", // Canada
-        "KY", // Cayman Islands (UK)
-        "TD", // Chad
-        "CL", // Chile
-        "CX", // Christmas Island (AU)
-        "CC", // Cocos (Keeling) Islands (AU)
-        "CO", // Colombia
-        "KM", // Comoros
-        "CG", // Congo (Brazzaville)
-        "CK", // Cook Islands (NZ)
-        "CR", // Costa Rica
-        "CI", // Côte d'Ivoire
-        "HR", // Croatia
-        "CY", // Cyprus
-        "CZ", // Czechia (Czech Republic)
-        "DK", // Denmark
-        "DJ", // Djibouti
-        "DM", // Dominica
-        "DO", // Dominican Republic
-        "EC", // Ecuador
-        "EG", // Egypt
-        "SV", // El Salvador
-        "GQ", // Equatorial Guinea
-        "EE", // Estonia
-        "SZ", // Eswatini
-        "FK", // Falkland Islands (UK)
-        "FJ", // Fiji
-        "FI", // Finland
-        "FR", // France
-        "GF", // French Guiana (FR)
-        "PF", // French Polynesia (FR)
-        "TF", // French Southern Territories
-        "GA", // Gabon
-        "GM", // Gambia
-        "GE", // Georgia
-        "DE", // Germany
-        "GH", // Ghana
-        "GI", // Gibraltar (UK)
-        "GR", // Greece
-        "GD", // Grenada
-        "GT", // Guatemala
-        "GU", // Guam (US)
-        "GN", // Guinea
-        "GW", // Guinea-Bissau
-        "GY", // Guyana
-        "HT", // Haiti
-        "HM", // Heard Island and McDonald Islands (AU)
-        "HN", // Honduras
-        "HU", // Hungary
-        "IS", // Iceland
-        "IN", // India
-        "ID", // Indonesia
-        "IQ", // Iraq
-        "IE", // Ireland
-        "IL", // Israel
-        "IT", // Italy
-        "JM", // Jamaica
-        "JP", // Japan
-        "JO", // Jordan
-        "KZ", // Kazakhstan
-        "KE", // Kenya
-        "KI", // Kiribati
-        "KW", // Kuwait
-        "KG", // Kyrgyzstan
-        "LA", // Laos
-        "LV", // Latvia
-        "LB", // Lebanon
-        "LS", // Lesotho
-        "LR", // Liberia
-        "LI", // Liechtenstein
-        "LT", // Lithuania
-        "LU", // Luxembourg
-        "MG", // Madagascar
-        "MW", // Malawi
-        "MY", // Malaysia
-        "MV", // Maldives
-        "MT", // Malta
-        "MH", // Marshall Islands
-        "MR", // Mauritania
-        "MU", // Mauritius
-        "MX", // Mexico
-        "FM", // Micronesia
-        "MD", // Moldova
-        "MC", // Monaco
-        "MN", // Mongolia
-        "MS", // Montserrat (UK)
-        "ME", // Montenegro
-        "MA", // Morocco
-        "MZ", // Mozambique
-        "NA", // Namibia
-        "NR", // Nauru
-        "NP", // Nepal
-        "NL", // Netherlands
-        "NZ", // New Zealand
-        "NE", // Niger
-        "NG", // Nigeria
-        "NF", // Norfolk Island (AU)
-        "MK", // North Macedonia
-        "MI", // Northern Mariana Islands (UK)
-        "NO", // Norway
-        "NU", // Niue (NZ)
-        "OM", // Oman
-        "PK", // Pakistan
-        "PW", // Palau
-        "PS", // Palestine
-        "PA", // Panama
-        "PG", // Papua New Guinea
-        "PY", // Paraguay
-        "PE", // Peru
-        "PH", // Philippines
-        "PN", // Pitcairn (UK)
-        "PL", // Poland
-        "PT", // Portugal
-        "PR", // Puerto Rico (US)
-        "QA", // Qatar
-        "RO", // Romania
-        "RW", // Rwanda
-        "BL", // Saint Barthélemy (FR)
-        "KN", // Saint Kitts and Nevis
-        "LC", // Saint Lucia
-        "MF", // Saint Martin (FR)
-        "PM", // Saint Pierre and Miquelon (FR)
-        "VC", // Saint Vincent and the Grenadines
-        "WS", // Samoa
-        "SM", // San Marino
-        "ST", // São Tomé and Príncipe
-        "SA", // Saudi Arabia
-        "SN", // Senegal
-        "RS", // Serbia
-        "SC", // Seychelles
-        "SH", // Saint Helena, Ascension and Tristan da Cunha (UK)
-        "SL", // Sierra Leone
-        "SG", // Singapore
-        "SK", // Slovakia
-        "SI", // Slovenia
-        "SB", // Solomon Islands
-        "ZA", // South Africa
-        "KR", // South Korea
-        "ES", // Spain
-        "LK", // Sri Lanka
-        "SR", // Suriname
-        "SE", // Sweden
-        "CH", // Switzerland
-        "TW", // Taiwan
-        "TJ", // Tajikistan
-        "TZ", // Tanzania
-        "TH", // Thailand
-        "TL", // Timor-Leste
-        "TG", // Togo
-        "TK", // Tokelau (NZ)
-        "TO", // Tonga
-        "TT", // Trinidad and Tobago
-        "TN", // Tunisia
-        "TR", // Türkiye (Turkey)
-        "TM", // Turkmenistan
-        "TC", // Turks and Caicos Islands (UK)
-        "TV", // Tuvalu
-        "UG", // Uganda
-        "UA", // Ukraine (except Crimea, Donetsk, and Luhansk regions)
-        "AE", // United Arab Emirates
-        "GB", // United Kingdom
-        "UM", // United States Minor Outlying Islands (US)
-        "US", // United States of America
-        "UY", // Uruguay
-        "UZ", // Uzbekistan
-        "VU", // Vanuatu
-        "VA", // Vatican City
-        "VN", // Vietnam
-        "VI", // Virgin Islands (US)
-        "VG", // Virgin Islands (UK)
-        "WF", // Wallis and Futuna (FR)
-        "ZM", // Zambia
-        "ZW", // Zimbabwe
-    ]
-    .into_iter()
-    .collect()
-});

crates/assistant/Cargo.toml

@@ -49,7 +49,7 @@ menu.workspace = true
 multi_buffer.workspace = true
 parking_lot.workspace = true
 project.workspace = true
-prompt_library.workspace = true
+rules_library.workspace = true
 prompt_store.workspace = true
 proto.workspace = true
 rope.workspace = true

crates/assistant/src/assistant.rs

@@ -101,7 +101,7 @@ pub fn init(
     SlashCommandSettings::register(cx);
 
     assistant_context_editor::init(client.clone(), cx);
-    prompt_library::init(cx);
+    rules_library::init(cx);
     init_language_model_settings(cx);
     assistant_slash_command::init(cx);
     assistant_tool::init(cx);

crates/assistant/src/assistant_panel.rs

@@ -23,11 +23,10 @@ use gpui::{
 use language::LanguageRegistry;
 use language_model::{
     AuthenticateError, ConfiguredModel, LanguageModelProviderId, LanguageModelRegistry,
-    ZED_CLOUD_PROVIDER_ID,
 };
 use project::Project;
-use prompt_library::{PromptLibrary, open_prompt_library};
-use prompt_store::{PromptBuilder, PromptId, UserPromptId};
+use prompt_store::{PromptBuilder, UserPromptId};
+use rules_library::{RulesLibrary, open_rules_library};
 
 use search::{BufferSearchBar, buffer_search::DivRegistrar};
 use settings::{Settings, update_settings_file};
@@ -44,7 +43,7 @@ use workspace::{
     dock::{DockPosition, Panel, PanelEvent},
     pane,
 };
-use zed_actions::assistant::{InlineAssist, OpenPromptLibrary, ShowConfiguration, ToggleFocus};
+use zed_actions::assistant::{InlineAssist, OpenRulesLibrary, ShowConfiguration, ToggleFocus};
 
 pub fn init(cx: &mut App) {
     workspace::FollowableViewRegistry::register::<ContextEditor>(cx);
@@ -58,11 +57,11 @@ pub fn init(cx: &mut App) {
                 .register_action(AssistantPanel::show_configuration)
                 .register_action(AssistantPanel::create_new_context)
                 .register_action(AssistantPanel::restart_context_servers)
-                .register_action(|workspace, action: &OpenPromptLibrary, window, cx| {
+                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
                     if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
                         workspace.focus_panel::<AssistantPanel>(window, cx);
                         panel.update(cx, |panel, cx| {
-                            panel.deploy_prompt_library(action, window, cx)
+                            panel.deploy_rules_library(action, window, cx)
                         });
                     }
                 });
@@ -273,8 +272,8 @@ impl AssistantPanel {
                                         .action("New Chat", Box::new(NewChat))
                                         .action("History", Box::new(DeployHistory))
                                         .action(
-                                            "Prompt Library",
-                                            Box::new(OpenPromptLibrary::default()),
+                                            "Rules Library",
+                                            Box::new(OpenRulesLibrary::default()),
                                         )
                                         .action("Configure", Box::new(ShowConfiguration))
                                         .action(zoom_label, Box::new(ToggleZoom))
@@ -489,8 +488,8 @@ impl AssistantPanel {
 
         // If we're signed out and don't have a provider configured, or we're signed-out AND Zed.dev is
         // the provider, we want to show a nudge to sign in.
-        let show_zed_ai_notice = client_status.is_signed_out()
-            && model.map_or(true, |model| model.provider.id().0 == ZED_CLOUD_PROVIDER_ID);
+        let show_zed_ai_notice =
+            client_status.is_signed_out() && model.map_or(true, |model| model.is_provided_by_zed());
 
         self.show_zed_ai_notice = show_zed_ai_notice;
         cx.notify();
@@ -1044,13 +1043,13 @@ impl AssistantPanel {
         }
     }
 
-    fn deploy_prompt_library(
+    fn deploy_rules_library(
         &mut self,
-        action: &OpenPromptLibrary,
+        action: &OpenRulesLibrary,
         _window: &mut Window,
         cx: &mut Context<Self>,
     ) {
-        open_prompt_library(
+        open_rules_library(
             self.languages.clone(),
             Box::new(PromptLibraryInlineAssist),
             Arc::new(|| {
@@ -1060,9 +1059,9 @@ impl AssistantPanel {
                     None,
                 ))
             }),
-            action.prompt_to_select.map(|uuid| PromptId::User {
-                uuid: UserPromptId(uuid),
-            }),
+            action
+                .prompt_to_select
+                .map(|uuid| UserPromptId(uuid).into()),
             cx,
         )
         .detach_and_log_err(cx);
@@ -1236,7 +1235,7 @@ impl Render for AssistantPanel {
                 this.show_configuration_tab(window, cx)
             }))
             .on_action(cx.listener(AssistantPanel::deploy_history))
-            .on_action(cx.listener(AssistantPanel::deploy_prompt_library))
+            .on_action(cx.listener(AssistantPanel::deploy_rules_library))
             .child(registrar.size_full().child(self.pane.clone()))
             .into_any_element()
     }
@@ -1351,13 +1350,13 @@ impl Focusable for AssistantPanel {
 
 struct PromptLibraryInlineAssist;
 
-impl prompt_library::InlineAssistDelegate for PromptLibraryInlineAssist {
+impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
     fn assist(
         &self,
         prompt_editor: &Entity<Editor>,
         initial_prompt: Option<String>,
         window: &mut Window,
-        cx: &mut Context<PromptLibrary>,
+        cx: &mut Context<RulesLibrary>,
     ) {
         InlineAssistant::update_global(cx, |assistant, cx| {
             assistant.assist(&prompt_editor, None, None, initial_prompt, window, cx)

crates/assistant/src/inline_assistant.rs

@@ -18,11 +18,11 @@ use editor::{
     },
 };
 use feature_flags::{
-    Assistant2FeatureFlag, FeatureFlagAppExt as _, FeatureFlagViewExt as _, ZedPro,
+    Assistant2FeatureFlag, FeatureFlagAppExt as _, FeatureFlagViewExt as _, ZedProFeatureFlag,
 };
 use fs::Fs;
 use futures::{
-    SinkExt, Stream, StreamExt,
+    SinkExt, Stream, StreamExt, TryStreamExt as _,
     channel::mpsc,
     future::{BoxFuture, LocalBoxFuture},
     join,
@@ -1226,7 +1226,7 @@ impl InlineAssistant {
                 editor.highlight_rows::<InlineAssist>(
                     row_range,
                     cx.theme().status().info_background,
-                    false,
+                    Default::default(),
                     cx,
                 );
             }
@@ -1291,7 +1291,7 @@ impl InlineAssistant {
                     editor.highlight_rows::<DeletedLines>(
                         Anchor::min()..Anchor::max(),
                         cx.theme().status().deleted_background,
-                        false,
+                        Default::default(),
                         cx,
                     );
                     editor
@@ -1652,7 +1652,7 @@ impl Render for PromptEditor {
 
                         let error_message = SharedString::from(error.to_string());
                         if error.error_code() == proto::ErrorCode::RateLimitExceeded
-                            && cx.has_flag::<ZedPro>()
+                            && cx.has_flag::<ZedProFeatureFlag>()
                         {
                             el.child(
                                 v_flex()
@@ -1966,7 +1966,7 @@ impl PromptEditor {
                     .update(cx, |editor, _| editor.set_read_only(false));
             }
             CodegenStatus::Error(error) => {
-                if cx.has_flag::<ZedPro>()
+                if cx.has_flag::<ZedProFeatureFlag>()
                     && error.error_code() == proto::ErrorCode::RateLimitExceeded
                     && !dismissed_rate_limit_notice()
                 {
@@ -3056,7 +3056,8 @@ impl CodegenAlternative {
                         let mut response_latency = None;
                         let request_start = Instant::now();
                         let diff = async {
-                            let chunks = StripInvalidSpans::new(stream?.stream);
+                            let chunks =
+                                StripInvalidSpans::new(stream?.stream.map_err(|e| e.into()));
                             futures::pin_mut!(chunks);
                             let mut diff = StreamingDiff::new(selected_text.to_string());
                             let mut line_diff = LineDiff::default();

crates/assistant/src/slash_command_settings.rs

@@ -44,4 +44,6 @@ impl Settings for SlashCommandSettings {
                 .chain(sources.server),
         )
     }
+
+    fn import_from_vscode(_vscode: &settings::VsCodeSettings, _current: &mut Self::FileContent) {}
 }

crates/assistant_settings/src/assistant_settings.rs

@@ -112,13 +112,27 @@ impl AssistantSettings {
 }
 
 /// Assistant panel settings
+#[derive(Clone, Serialize, Deserialize, Debug, Default)]
+pub struct AssistantSettingsContent {
+    #[serde(flatten)]
+    pub inner: Option<AssistantSettingsContentInner>,
+}
+
 #[derive(Clone, Serialize, Deserialize, Debug)]
 #[serde(untagged)]
-pub enum AssistantSettingsContent {
+pub enum AssistantSettingsContentInner {
     Versioned(Box<VersionedAssistantSettingsContent>),
     Legacy(LegacyAssistantSettingsContent),
 }
 
+impl AssistantSettingsContentInner {
+    fn for_v2(content: AssistantSettingsContentV2) -> Self {
+        AssistantSettingsContentInner::Versioned(Box::new(VersionedAssistantSettingsContent::V2(
+            content,
+        )))
+    }
+}
+
 impl JsonSchema for AssistantSettingsContent {
     fn schema_name() -> String {
         VersionedAssistantSettingsContent::schema_name()
@@ -133,26 +147,21 @@ impl JsonSchema for AssistantSettingsContent {
     }
 }
 
-impl Default for AssistantSettingsContent {
-    fn default() -> Self {
-        Self::Versioned(Box::new(VersionedAssistantSettingsContent::default()))
-    }
-}
-
 impl AssistantSettingsContent {
     pub fn is_version_outdated(&self) -> bool {
-        match self {
-            AssistantSettingsContent::Versioned(settings) => match **settings {
+        match &self.inner {
+            Some(AssistantSettingsContentInner::Versioned(settings)) => match **settings {
                 VersionedAssistantSettingsContent::V1(_) => true,
                 VersionedAssistantSettingsContent::V2(_) => false,
             },
-            AssistantSettingsContent::Legacy(_) => true,
+            Some(AssistantSettingsContentInner::Legacy(_)) => true,
+            None => false,
         }
     }
 
     fn upgrade(&self) -> AssistantSettingsContentV2 {
-        match self {
-            AssistantSettingsContent::Versioned(settings) => match **settings {
+        match &self.inner {
+            Some(AssistantSettingsContentInner::Versioned(settings)) => match **settings {
                 VersionedAssistantSettingsContent::V1(ref settings) => AssistantSettingsContentV2 {
                     enabled: settings.enabled,
                     button: settings.button,
@@ -212,7 +221,7 @@ impl AssistantSettingsContent {
                 },
                 VersionedAssistantSettingsContent::V2(ref settings) => settings.clone(),
             },
-            AssistantSettingsContent::Legacy(settings) => AssistantSettingsContentV2 {
+            Some(AssistantSettingsContentInner::Legacy(settings)) => AssistantSettingsContentV2 {
                 enabled: None,
                 button: settings.button,
                 dock: settings.dock,
@@ -237,12 +246,13 @@ impl AssistantSettingsContent {
                 always_allow_tool_actions: None,
                 notify_when_agent_waiting: None,
             },
+            None => AssistantSettingsContentV2::default(),
         }
     }
 
     pub fn set_dock(&mut self, dock: AssistantDockPosition) {
-        match self {
-            AssistantSettingsContent::Versioned(settings) => match **settings {
+        match &mut self.inner {
+            Some(AssistantSettingsContentInner::Versioned(settings)) => match **settings {
                 VersionedAssistantSettingsContent::V1(ref mut settings) => {
                     settings.dock = Some(dock);
                 }
@@ -250,9 +260,17 @@ impl AssistantSettingsContent {
                     settings.dock = Some(dock);
                 }
             },
-            AssistantSettingsContent::Legacy(settings) => {
+            Some(AssistantSettingsContentInner::Legacy(settings)) => {
                 settings.dock = Some(dock);
             }
+            None => {
+                self.inner = Some(AssistantSettingsContentInner::for_v2(
+                    AssistantSettingsContentV2 {
+                        dock: Some(dock),
+                        ..Default::default()
+                    },
+                ))
+            }
         }
     }
 
@@ -260,8 +278,8 @@ impl AssistantSettingsContent {
         let model = language_model.id().0.to_string();
         let provider = language_model.provider_id().0.to_string();
 
-        match self {
-            AssistantSettingsContent::Versioned(settings) => match **settings {
+        match &mut self.inner {
+            Some(AssistantSettingsContentInner::Versioned(settings)) => match **settings {
                 VersionedAssistantSettingsContent::V1(ref mut settings) => {
                     match provider.as_ref() {
                         "zed.dev" => {
@@ -337,56 +355,80 @@ impl AssistantSettingsContent {
                     settings.default_model = Some(LanguageModelSelection { provider, model });
                 }
             },
-            AssistantSettingsContent::Legacy(settings) => {
+            Some(AssistantSettingsContentInner::Legacy(settings)) => {
                 if let Ok(model) = OpenAiModel::from_id(&language_model.id().0) {
                     settings.default_open_ai_model = Some(model);
                 }
             }
+            None => {
+                self.inner = Some(AssistantSettingsContentInner::for_v2(
+                    AssistantSettingsContentV2 {
+                        default_model: Some(LanguageModelSelection { provider, model }),
+                        ..Default::default()
+                    },
+                ));
+            }
         }
     }
 
     pub fn set_inline_assistant_model(&mut self, provider: String, model: String) {
-        if let AssistantSettingsContent::Versioned(boxed) = self {
-            if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
-                settings.inline_assistant_model = Some(LanguageModelSelection { provider, model });
-            }
-        }
+        self.v2_setting(|setting| {
+            setting.inline_assistant_model = Some(LanguageModelSelection { provider, model });
+            Ok(())
+        })
+        .ok();
     }
 
     pub fn set_commit_message_model(&mut self, provider: String, model: String) {
-        if let AssistantSettingsContent::Versioned(boxed) = self {
-            if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
-                settings.commit_message_model = Some(LanguageModelSelection { provider, model });
+        self.v2_setting(|setting| {
+            setting.commit_message_model = Some(LanguageModelSelection { provider, model });
+            Ok(())
+        })
+        .ok();
+    }
+
+    pub fn v2_setting(
+        &mut self,
+        f: impl FnOnce(&mut AssistantSettingsContentV2) -> anyhow::Result<()>,
+    ) -> anyhow::Result<()> {
+        match self.inner.get_or_insert_with(|| {
+            AssistantSettingsContentInner::for_v2(AssistantSettingsContentV2 {
+                ..Default::default()
+            })
+        }) {
+            AssistantSettingsContentInner::Versioned(boxed) => {
+                if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
+                    f(settings)
+                } else {
+                    Ok(())
+                }
             }
+            _ => Ok(()),
         }
     }
 
     pub fn set_thread_summary_model(&mut self, provider: String, model: String) {
-        if let AssistantSettingsContent::Versioned(boxed) = self {
-            if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
-                settings.thread_summary_model = Some(LanguageModelSelection { provider, model });
-            }
-        }
+        self.v2_setting(|setting| {
+            setting.thread_summary_model = Some(LanguageModelSelection { provider, model });
+            Ok(())
+        })
+        .ok();
     }
 
     pub fn set_always_allow_tool_actions(&mut self, allow: bool) {
-        let AssistantSettingsContent::Versioned(boxed) = self else {
-            return;
-        };
-
-        if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
-            settings.always_allow_tool_actions = Some(allow);
-        }
+        self.v2_setting(|setting| {
+            setting.always_allow_tool_actions = Some(allow);
+            Ok(())
+        })
+        .ok();
     }
 
     pub fn set_profile(&mut self, profile_id: AgentProfileId) {
-        let AssistantSettingsContent::Versioned(boxed) = self else {
-            return;
-        };
-
-        if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
-            settings.default_profile = Some(profile_id);
-        }
+        self.v2_setting(|setting| {
+            setting.default_profile = Some(profile_id);
+            Ok(())
+        })
+        .ok();
     }
 
     pub fn create_profile(
@@ -394,11 +436,7 @@ impl AssistantSettingsContent {
         profile_id: AgentProfileId,
         profile: AgentProfile,
     ) -> Result<()> {
-        let AssistantSettingsContent::Versioned(boxed) = self else {
-            return Ok(());
-        };
-
-        if let VersionedAssistantSettingsContent::V2(ref mut settings) = **boxed {
+        self.v2_setting(|settings| {
             let profiles = settings.profiles.get_or_insert_default();
             if profiles.contains_key(&profile_id) {
                 bail!("profile with ID '{profile_id}' already exists");
@@ -424,9 +462,9 @@ impl AssistantSettingsContent {
                         .collect(),
                 },
             );
-        }
 
-        Ok(())
+            Ok(())
+        })
     }
 }
 
@@ -461,7 +499,7 @@ impl Default for VersionedAssistantSettingsContent {
     }
 }
 
-#[derive(Clone, Serialize, Deserialize, JsonSchema, Debug)]
+#[derive(Clone, Serialize, Deserialize, JsonSchema, Debug, Default)]
 pub struct AssistantSettingsContentV2 {
     /// Whether the Assistant is enabled.
     ///
@@ -708,6 +746,39 @@ impl Settings for AssistantSettings {
 
         Ok(settings)
     }
+
+    fn import_from_vscode(vscode: &settings::VsCodeSettings, current: &mut Self::FileContent) {
+        if let Some(b) = vscode
+            .read_value("chat.agent.enabled")
+            .and_then(|b| b.as_bool())
+        {
+            match &mut current.inner {
+                Some(AssistantSettingsContentInner::Versioned(versioned)) => {
+                    match versioned.as_mut() {
+                        VersionedAssistantSettingsContent::V1(setting) => {
+                            setting.enabled = Some(b);
+                            setting.button = Some(b);
+                        }
+
+                        VersionedAssistantSettingsContent::V2(setting) => {
+                            setting.enabled = Some(b);
+                            setting.button = Some(b);
+                        }
+                    }
+                }
+                Some(AssistantSettingsContentInner::Legacy(setting)) => setting.button = Some(b),
+                None => {
+                    current.inner = Some(AssistantSettingsContentInner::for_v2(
+                        AssistantSettingsContentV2 {
+                            enabled: Some(b),
+                            button: Some(b),
+                            ..Default::default()
+                        },
+                    ));
+                }
+            }
+        }
+    }
 }
 
 fn merge<T>(target: &mut T, value: Option<T>) {
@@ -751,28 +822,30 @@ mod tests {
             settings::SettingsStore::global(cx).update_settings_file::<AssistantSettings>(
                 fs.clone(),
                 |settings, _| {
-                    *settings = AssistantSettingsContent::Versioned(Box::new(
-                        VersionedAssistantSettingsContent::V2(AssistantSettingsContentV2 {
-                            default_model: Some(LanguageModelSelection {
-                                provider: "test-provider".into(),
-                                model: "gpt-99".into(),
-                            }),
-                            inline_assistant_model: None,
-                            commit_message_model: None,
-                            thread_summary_model: None,
-                            inline_alternatives: None,
-                            enabled: None,
-                            button: None,
-                            dock: None,
-                            default_width: None,
-                            default_height: None,
-                            enable_experimental_live_diffs: None,
-                            default_profile: None,
-                            profiles: None,
-                            always_allow_tool_actions: None,
-                            notify_when_agent_waiting: None,
-                        }),
-                    ))
+                    *settings = AssistantSettingsContent {
+                        inner: Some(AssistantSettingsContentInner::for_v2(
+                            AssistantSettingsContentV2 {
+                                default_model: Some(LanguageModelSelection {
+                                    provider: "test-provider".into(),
+                                    model: "gpt-99".into(),
+                                }),
+                                inline_assistant_model: None,
+                                commit_message_model: None,
+                                thread_summary_model: None,
+                                inline_alternatives: None,
+                                enabled: None,
+                                button: None,
+                                dock: None,
+                                default_width: None,
+                                default_height: None,
+                                enable_experimental_live_diffs: None,
+                                default_profile: None,
+                                profiles: None,
+                                always_allow_tool_actions: None,
+                                notify_when_agent_waiting: None,
+                            },
+                        )),
+                    }
                 },
             );
         });

crates/assistant_tool/Cargo.toml

@@ -28,6 +28,7 @@ serde.workspace = true
 serde_json.workspace = true
 text.workspace = true
 util.workspace = true
+workspace.workspace = true
 workspace-hack.workspace = true
 
 [dev-dependencies]

crates/assistant_tool/src/action_log.rs

@@ -39,10 +39,9 @@ impl ActionLog {
         self.edited_since_project_diagnostics_check
     }
 
-    fn track_buffer(
+    fn track_buffer_internal(
         &mut self,
         buffer: Entity<Buffer>,
-        created: bool,
         cx: &mut Context<Self>,
     ) -> &mut TrackedBuffer {
         let tracked_buffer = self
@@ -59,7 +58,11 @@ impl ActionLog {
                 let base_text;
                 let status;
                 let unreviewed_changes;
-                if created {
+                if buffer
+                    .read(cx)
+                    .file()
+                    .map_or(true, |file| !file.disk_state().exists())
+                {
                     base_text = Rope::default();
                     status = TrackedBufferStatus::Created;
                     unreviewed_changes = Patch::new(vec![Edit {
@@ -146,7 +149,7 @@ impl ActionLog {
                     // resurrected externally, we want to clear the changes we
                     // were tracking and reset the buffer's state.
                     self.tracked_buffers.remove(&buffer);
-                    self.track_buffer(buffer, false, cx);
+                    self.track_buffer_internal(buffer, cx);
                 }
                 cx.notify();
             }
@@ -260,26 +263,15 @@ impl ActionLog {
     }
 
     /// Track a buffer as read, so we can notify the model about user edits.
-    pub fn buffer_read(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
-        self.track_buffer(buffer, false, cx);
-    }
-
-    /// Track a buffer that was added as context, so we can notify the model about user edits.
-    pub fn buffer_added_as_context(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
-        self.track_buffer(buffer, false, cx);
-    }
-
-    /// Track a buffer as read, so we can notify the model about user edits.
-    pub fn will_create_buffer(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
-        self.track_buffer(buffer.clone(), true, cx);
-        self.buffer_edited(buffer, cx)
+    pub fn track_buffer(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
+        self.track_buffer_internal(buffer, cx);
     }
 
     /// Mark a buffer as edited, so we can refresh it in the context
     pub fn buffer_edited(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
         self.edited_since_project_diagnostics_check = true;
 
-        let tracked_buffer = self.track_buffer(buffer.clone(), false, cx);
+        let tracked_buffer = self.track_buffer_internal(buffer.clone(), cx);
         if let TrackedBufferStatus::Deleted = tracked_buffer.status {
             tracked_buffer.status = TrackedBufferStatus::Modified;
         }
@@ -287,7 +279,7 @@ impl ActionLog {
     }
 
     pub fn will_delete_buffer(&mut self, buffer: Entity<Buffer>, cx: &mut Context<Self>) {
-        let tracked_buffer = self.track_buffer(buffer.clone(), false, cx);
+        let tracked_buffer = self.track_buffer_internal(buffer.clone(), cx);
         match tracked_buffer.status {
             TrackedBufferStatus::Created => {
                 self.tracked_buffers.remove(&buffer);
@@ -397,7 +389,7 @@ impl ActionLog {
 
                 // Clear all tracked changes for this buffer and start over as if we just read it.
                 self.tracked_buffers.remove(&buffer);
-                self.track_buffer(buffer.clone(), false, cx);
+                self.track_buffer_internal(buffer.clone(), cx);
                 cx.notify();
                 save
             }
@@ -695,12 +687,20 @@ mod tests {
         init_test(cx);
 
         let fs = FakeFs::new(cx.executor());
-        let project = Project::test(fs.clone(), [], cx).await;
+        fs.insert_tree(path!("/dir"), json!({"file": "abc\ndef\nghi\njkl\nmno"}))
+            .await;
+        let project = Project::test(fs.clone(), [path!("/dir").as_ref()], cx).await;
         let action_log = cx.new(|_| ActionLog::new(project.clone()));
-        let buffer = cx.new(|cx| Buffer::local("abc\ndef\nghi\njkl\nmno", cx));
+        let file_path = project
+            .read_with(cx, |project, cx| project.find_project_path("dir/file", cx))
+            .unwrap();
+        let buffer = project
+            .update(cx, |project, cx| project.open_buffer(file_path, cx))
+            .await
+            .unwrap();
 
         cx.update(|cx| {
-            action_log.update(cx, |log, cx| log.buffer_read(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| {
                 buffer
                     .edit([(Point::new(1, 1)..Point::new(1, 2), "E")], None, cx)
@@ -765,12 +765,23 @@ mod tests {
         init_test(cx);
 
         let fs = FakeFs::new(cx.executor());
-        let project = Project::test(fs.clone(), [], cx).await;
+        fs.insert_tree(
+            path!("/dir"),
+            json!({"file": "abc\ndef\nghi\njkl\nmno\npqr"}),
+        )
+        .await;
+        let project = Project::test(fs.clone(), [path!("/dir").as_ref()], cx).await;
         let action_log = cx.new(|_| ActionLog::new(project.clone()));
-        let buffer = cx.new(|cx| Buffer::local("abc\ndef\nghi\njkl\nmno\npqr", cx));
+        let file_path = project
+            .read_with(cx, |project, cx| project.find_project_path("dir/file", cx))
+            .unwrap();
+        let buffer = project
+            .update(cx, |project, cx| project.open_buffer(file_path, cx))
+            .await
+            .unwrap();
 
         cx.update(|cx| {
-            action_log.update(cx, |log, cx| log.buffer_read(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| {
                 buffer
                     .edit([(Point::new(1, 0)..Point::new(2, 0), "")], None, cx)
@@ -839,12 +850,20 @@ mod tests {
         init_test(cx);
 
         let fs = FakeFs::new(cx.executor());
-        let project = Project::test(fs.clone(), [], cx).await;
+        fs.insert_tree(path!("/dir"), json!({"file": "abc\ndef\nghi\njkl\nmno"}))
+            .await;
+        let project = Project::test(fs.clone(), [path!("/dir").as_ref()], cx).await;
         let action_log = cx.new(|_| ActionLog::new(project.clone()));
-        let buffer = cx.new(|cx| Buffer::local("abc\ndef\nghi\njkl\nmno", cx));
+        let file_path = project
+            .read_with(cx, |project, cx| project.find_project_path("dir/file", cx))
+            .unwrap();
+        let buffer = project
+            .update(cx, |project, cx| project.open_buffer(file_path, cx))
+            .await
+            .unwrap();
 
         cx.update(|cx| {
-            action_log.update(cx, |log, cx| log.buffer_read(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| {
                 buffer
                     .edit([(Point::new(1, 2)..Point::new(2, 3), "F\nGHI")], None, cx)
@@ -928,25 +947,21 @@ mod tests {
         init_test(cx);
 
         let fs = FakeFs::new(cx.executor());
+        fs.insert_tree(path!("/dir"), json!({})).await;
         let project = Project::test(fs.clone(), [path!("/dir").as_ref()], cx).await;
         let action_log = cx.new(|_| ActionLog::new(project.clone()));
-
-        let fs = FakeFs::new(cx.executor());
-        fs.insert_tree(path!("/dir"), json!({})).await;
-
-        let project = Project::test(fs.clone(), [path!("/dir").as_ref()], cx).await;
         let file_path = project
             .read_with(cx, |project, cx| project.find_project_path("dir/file1", cx))
             .unwrap();
 
-        // Simulate file2 being recreated by a tool.
         let buffer = project
             .update(cx, |project, cx| project.open_buffer(file_path, cx))
             .await
             .unwrap();
         cx.update(|cx| {
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| buffer.set_text("lorem", cx));
-            action_log.update(cx, |log, cx| log.will_create_buffer(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.buffer_edited(buffer.clone(), cx));
         });
         project
             .update(cx, |project, cx| project.save_buffer(buffer.clone(), cx))
@@ -1067,8 +1082,9 @@ mod tests {
             .update(cx, |project, cx| project.open_buffer(file2_path, cx))
             .await
             .unwrap();
+        action_log.update(cx, |log, cx| log.track_buffer(buffer2.clone(), cx));
         buffer2.update(cx, |buffer, cx| buffer.set_text("IPSUM", cx));
-        action_log.update(cx, |log, cx| log.will_create_buffer(buffer2.clone(), cx));
+        action_log.update(cx, |log, cx| log.buffer_edited(buffer2.clone(), cx));
         project
             .update(cx, |project, cx| project.save_buffer(buffer2.clone(), cx))
             .await
@@ -1113,7 +1129,7 @@ mod tests {
             .unwrap();
 
         cx.update(|cx| {
-            action_log.update(cx, |log, cx| log.buffer_read(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| {
                 buffer
                     .edit([(Point::new(1, 1)..Point::new(1, 2), "E\nXYZ")], None, cx)
@@ -1248,7 +1264,7 @@ mod tests {
             .unwrap();
 
         cx.update(|cx| {
-            action_log.update(cx, |log, cx| log.buffer_read(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| {
                 buffer
                     .edit([(Point::new(1, 1)..Point::new(1, 2), "E\nXYZ")], None, cx)
@@ -1381,8 +1397,9 @@ mod tests {
             .await
             .unwrap();
         cx.update(|cx| {
+            action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
             buffer.update(cx, |buffer, cx| buffer.set_text("content", cx));
-            action_log.update(cx, |log, cx| log.will_create_buffer(buffer.clone(), cx));
+            action_log.update(cx, |log, cx| log.buffer_edited(buffer.clone(), cx));
         });
         project
             .update(cx, |project, cx| project.save_buffer(buffer.clone(), cx))
@@ -1438,7 +1455,7 @@ mod tests {
             .await
             .unwrap();
 
-        action_log.update(cx, |log, cx| log.buffer_read(buffer.clone(), cx));
+        action_log.update(cx, |log, cx| log.track_buffer(buffer.clone(), cx));
 
         for _ in 0..operations {
             match rng.gen_range(0..100) {
@@ -1490,7 +1507,7 @@ mod tests {
             log::info!("quiescing...");
             cx.run_until_parked();
             action_log.update(cx, |log, cx| {
-                let tracked_buffer = log.track_buffer(buffer.clone(), false, cx);
+                let tracked_buffer = log.track_buffer_internal(buffer.clone(), cx);
                 let mut old_text = tracked_buffer.base_text.clone();
                 let new_text = buffer.read(cx).as_rope();
                 for edit in tracked_buffer.unreviewed_changes.edits() {

crates/assistant_tool/src/assistant_tool.rs

@@ -10,14 +10,16 @@ use std::sync::Arc;
 
 use anyhow::Result;
 use gpui::AnyElement;
+use gpui::AnyWindowHandle;
 use gpui::Context;
 use gpui::IntoElement;
 use gpui::Window;
-use gpui::{App, Entity, SharedString, Task};
+use gpui::{App, Entity, SharedString, Task, WeakEntity};
 use icons::IconName;
 use language_model::LanguageModelRequestMessage;
 use language_model::LanguageModelToolSchemaFormat;
 use project::Project;
+use workspace::Workspace;
 
 pub use crate::action_log::*;
 pub use crate::tool_registry::*;
@@ -65,6 +67,7 @@ pub trait ToolCard: 'static + Sized {
         &mut self,
         status: &ToolUseStatus,
         window: &mut Window,
+        workspace: WeakEntity<Workspace>,
         cx: &mut Context<Self>,
     ) -> impl IntoElement;
 }
@@ -76,6 +79,7 @@ pub struct AnyToolCard {
         entity: gpui::AnyEntity,
         status: &ToolUseStatus,
         window: &mut Window,
+        workspace: WeakEntity<Workspace>,
         cx: &mut App,
     ) -> AnyElement,
 }
@@ -86,11 +90,14 @@ impl<T: ToolCard> From<Entity<T>> for AnyToolCard {
             entity: gpui::AnyEntity,
             status: &ToolUseStatus,
             window: &mut Window,
+            workspace: WeakEntity<Workspace>,
             cx: &mut App,
         ) -> AnyElement {
             let entity = entity.downcast::<T>().unwrap();
             entity.update(cx, |entity, cx| {
-                entity.render(status, window, cx).into_any_element()
+                entity
+                    .render(status, window, workspace, cx)
+                    .into_any_element()
             })
         }
 
@@ -102,8 +109,14 @@ impl<T: ToolCard> From<Entity<T>> for AnyToolCard {
 }
 
 impl AnyToolCard {
-    pub fn render(&self, status: &ToolUseStatus, window: &mut Window, cx: &mut App) -> AnyElement {
-        (self.render)(self.entity.clone(), status, window, cx)
+    pub fn render(
+        &self,
+        status: &ToolUseStatus,
+        window: &mut Window,
+        workspace: WeakEntity<Workspace>,
+        cx: &mut App,
+    ) -> AnyElement {
+        (self.render)(self.entity.clone(), status, window, workspace, cx)
     }
 }
 
@@ -163,6 +176,7 @@ pub trait Tool: 'static + Send + Sync {
         messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult;
 }

crates/assistant_tool/src/tool_schema.rs

@@ -10,6 +10,11 @@ pub fn adapt_schema_to_format(
     json: &mut Value,
     format: LanguageModelToolSchemaFormat,
 ) -> Result<()> {
+    if let Value::Object(obj) = json {
+        obj.remove("$schema");
+        obj.remove("title");
+    }
+
     match format {
         LanguageModelToolSchemaFormat::JsonSchema => Ok(()),
         LanguageModelToolSchemaFormat::JsonSchemaSubset => adapt_to_json_schema_subset(json),
@@ -30,10 +35,7 @@ fn adapt_to_json_schema_subset(json: &mut Value) -> Result<()> {
             }
         }
 
-        const KEYS_TO_REMOVE: [&str; 2] = ["format", "$schema"];
-        for key in KEYS_TO_REMOVE {
-            obj.remove(key);
-        }
+        obj.remove("format");
 
         if let Some(default) = obj.get("default") {
             let is_null = default.is_null();

crates/assistant_tools/Cargo.toml

@@ -14,12 +14,14 @@ path = "src/assistant_tools.rs"
 [dependencies]
 anyhow.workspace = true
 assistant_tool.workspace = true
+buffer_diff.workspace = true
 chrono.workspace = true
 collections.workspace = true
 component.workspace = true
-feature_flags.workspace = true
+editor.workspace = true
 futures.workspace = true
 gpui.workspace = true
+handlebars = { workspace = true, features = ["rust-embed"] }
 html_to_markdown.workspace = true
 http_client.workspace = true
 indoc.workspace = true
@@ -30,23 +32,32 @@ linkme.workspace = true
 open.workspace = true
 project.workspace = true
 regex.workspace = true
+rust-embed.workspace = true
 schemars.workspace = true
 serde.workspace = true
 serde_json.workspace = true
+smallvec.workspace = true
 ui.workspace = true
 util.workspace = true
 web_search.workspace = true
+workspace.workspace = true
 workspace-hack.workspace = true
 worktree.workspace = true
 zed_llm_client.workspace = true
 
 [dev-dependencies]
+client = { workspace = true, features = ["test-support"] }
+clock = { workspace = true, features = ["test-support"] }
 collections = { workspace = true, features = ["test-support"] }
 gpui = { workspace = true, features = ["test-support"] }
+gpui_tokio.workspace = true
+fs = { workspace = true, features = ["test-support"] }
 language = { workspace = true, features = ["test-support"] }
+language_models.workspace = true
 project = { workspace = true, features = ["test-support"] }
 rand.workspace = true
 pretty_assertions.workspace = true
+reqwest_client.workspace = true
 settings = { workspace = true, features = ["test-support"] }
 tree-sitter-rust.workspace = true
 workspace = { workspace = true, features = ["test-support"] }

crates/assistant_tools/src/assistant_tools.rs

@@ -7,19 +7,20 @@ mod create_directory_tool;
 mod create_file_tool;
 mod delete_path_tool;
 mod diagnostics_tool;
+mod edit_agent;
 mod edit_file_tool;
 mod fetch_tool;
+mod find_path_tool;
 mod grep_tool;
 mod list_directory_tool;
 mod move_path_tool;
 mod now_tool;
 mod open_tool;
-mod path_search_tool;
 mod read_file_tool;
 mod rename_tool;
-mod replace;
 mod schema;
 mod symbol_info_tool;
+mod templates;
 mod terminal_tool;
 mod thinking_tool;
 mod ui;
@@ -29,12 +30,14 @@ use std::sync::Arc;
 
 use assistant_tool::ToolRegistry;
 use copy_path_tool::CopyPathTool;
-use feature_flags::FeatureFlagAppExt;
 use gpui::App;
 use http_client::HttpClientWithUrl;
+use language_model::LanguageModelRegistry;
 use move_path_tool::MovePathTool;
 use web_search_tool::WebSearchTool;
 
+pub(crate) use templates::*;
+
 use crate::batch_tool::BatchTool;
 use crate::code_action_tool::CodeActionTool;
 use crate::code_symbols_tool::CodeSymbolsTool;
@@ -45,17 +48,22 @@ use crate::delete_path_tool::DeletePathTool;
 use crate::diagnostics_tool::DiagnosticsTool;
 use crate::edit_file_tool::EditFileTool;
 use crate::fetch_tool::FetchTool;
+use crate::find_path_tool::FindPathTool;
 use crate::grep_tool::GrepTool;
 use crate::list_directory_tool::ListDirectoryTool;
 use crate::now_tool::NowTool;
 use crate::open_tool::OpenTool;
-use crate::path_search_tool::PathSearchTool;
 use crate::read_file_tool::ReadFileTool;
 use crate::rename_tool::RenameTool;
 use crate::symbol_info_tool::SymbolInfoTool;
 use crate::terminal_tool::TerminalTool;
 use crate::thinking_tool::ThinkingTool;
 
+pub use create_file_tool::CreateFileToolInput;
+pub use edit_file_tool::EditFileToolInput;
+pub use find_path_tool::FindPathToolInput;
+pub use read_file_tool::ReadFileToolInput;
+
 pub fn init(http_client: Arc<HttpClientWithUrl>, cx: &mut App) {
     assistant_tool::init(cx);
 
@@ -76,41 +84,79 @@ pub fn init(http_client: Arc<HttpClientWithUrl>, cx: &mut App) {
     registry.register_tool(OpenTool);
     registry.register_tool(CodeSymbolsTool);
     registry.register_tool(ContentsTool);
-    registry.register_tool(PathSearchTool);
+    registry.register_tool(FindPathTool);
     registry.register_tool(ReadFileTool);
     registry.register_tool(GrepTool);
     registry.register_tool(RenameTool);
     registry.register_tool(ThinkingTool);
     registry.register_tool(FetchTool::new(http_client));
 
-    cx.observe_flag::<feature_flags::ZedProWebSearchTool, _>({
-        move |is_enabled, cx| {
-            if is_enabled {
-                ToolRegistry::global(cx).register_tool(WebSearchTool);
-            } else {
-                ToolRegistry::global(cx).unregister_tool(WebSearchTool);
+    cx.subscribe(
+        &LanguageModelRegistry::global(cx),
+        move |registry, event, cx| match event {
+            language_model::Event::DefaultModelChanged => {
+                let using_zed_provider = registry
+                    .read(cx)
+                    .default_model()
+                    .map_or(false, |default| default.is_provided_by_zed());
+                if using_zed_provider {
+                    ToolRegistry::global(cx).register_tool(WebSearchTool);
+                } else {
+                    ToolRegistry::global(cx).unregister_tool(WebSearchTool);
+                }
             }
-        }
-    })
+            _ => {}
+        },
+    )
     .detach();
 }
 
 #[cfg(test)]
 mod tests {
-    use http_client::FakeHttpClient;
-
     use super::*;
+    use client::Client;
+    use clock::FakeSystemClock;
+    use http_client::FakeHttpClient;
+    use schemars::JsonSchema;
+    use serde::Serialize;
+
+    #[test]
+    fn test_json_schema() {
+        #[derive(Serialize, JsonSchema)]
+        struct GetWeatherTool {
+            location: String,
+        }
+
+        let schema = schema::json_schema_for::<GetWeatherTool>(
+            language_model::LanguageModelToolSchemaFormat::JsonSchema,
+        )
+        .unwrap();
+
+        assert_eq!(
+            schema,
+            serde_json::json!({
+                "type": "object",
+                "properties": {
+                    "location": {
+                        "type": "string"
+                    }
+                },
+                "required": ["location"],
+            })
+        );
+    }
 
     #[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,
-            )),
+        settings::init(cx);
+
+        let client = Client::new(
+            Arc::new(FakeSystemClock::new()),
+            FakeHttpClient::with_200_response(),
             cx,
         );
+        language_model::init(client.clone(), cx);
+        crate::init(client.http_client(), cx);
 
         for tool in ToolRegistry::global(cx).tools() {
             let actual_schema = tool

crates/assistant_tools/src/batch_tool.rs

@@ -2,7 +2,7 @@ use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult, ToolWorkingSet};
 use futures::future::join_all;
-use gpui::{App, AppContext, Entity, Task};
+use gpui::{AnyWindowHandle, App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -97,7 +97,7 @@ pub struct BatchToolInput {
     ///       }
     ///     },
     ///     {
-    ///       "name": "path_search",
+    ///       "name": "find_path",
     ///       "input": {
     ///         "glob": "**/*test*.rs"
     ///       }
@@ -218,6 +218,7 @@ impl Tool for BatchTool {
         messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<BatchToolInput>(input) {
@@ -258,7 +259,9 @@ impl Tool for BatchTool {
                     let action_log = action_log.clone();
                     let messages = messages.clone();
                     let tool_result = cx
-                        .update(|cx| tool.run(invocation.input, &messages, project, action_log, cx))
+                        .update(|cx| {
+                            tool.run(invocation.input, &messages, project, action_log, window, cx)
+                        })
                         .map_err(|err| anyhow!("Failed to start tool '{}': {}", tool_name, err))?;
 
                     tasks.push(tool_result.output);

crates/assistant_tools/src/code_action_tool.rs

@@ -1,6 +1,6 @@
 use anyhow::{Context as _, Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use language::{self, Anchor, Buffer, ToPointUtf16};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::{self, LspAction, Project};
@@ -140,6 +140,7 @@ impl Tool for CodeActionTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<CodeActionToolInput>(input) {
@@ -159,7 +160,7 @@ impl Tool for CodeActionTool {
             };
 
             action_log.update(cx, |action_log, cx| {
-                action_log.buffer_read(buffer.clone(), cx);
+                action_log.track_buffer(buffer.clone(), cx);
             })?;
 
             let range = {

crates/assistant_tools/src/code_symbols_tool.rs

@@ -6,7 +6,7 @@ use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
 use collections::IndexMap;
-use gpui::{App, AsyncApp, Entity, Task};
+use gpui::{AnyWindowHandle, App, AsyncApp, Entity, Task};
 use language::{OutlineItem, ParseStatus, Point};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::{Project, Symbol};
@@ -128,6 +128,7 @@ impl Tool for CodeSymbolsTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<CodeSymbolsInput>(input) {
@@ -174,7 +175,7 @@ pub async fn file_outline(
     };
 
     action_log.update(cx, |action_log, cx| {
-        action_log.buffer_read(buffer.clone(), cx);
+        action_log.track_buffer(buffer.clone(), cx);
     })?;
 
     // Wait until the buffer has been fully parsed, so that we can read its outline.

crates/assistant_tools/src/contents_tool.rs

@@ -3,7 +3,7 @@ use std::sync::Arc;
 use crate::{code_symbols_tool::file_outline, schema::json_schema_for};
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use itertools::Itertools;
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -102,6 +102,7 @@ impl Tool for ContentsTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<ContentsToolInput>(input) {
@@ -209,7 +210,7 @@ impl Tool for ContentsTool {
                     })?;
 
                     action_log.update(cx, |log, cx| {
-                        log.buffer_read(buffer, cx);
+                        log.track_buffer(buffer, cx);
                     })?;
 
                     Ok(result)
@@ -221,7 +222,7 @@ impl Tool for ContentsTool {
                         let result = buffer.read_with(cx, |buffer, _cx| buffer.text())?;
 
                         action_log.update(cx, |log, cx| {
-                            log.buffer_read(buffer, cx);
+                            log.track_buffer(buffer, cx);
                         })?;
 
                         Ok(result)

crates/assistant_tools/src/copy_path_tool.rs

@@ -1,6 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
+use gpui::AnyWindowHandle;
 use gpui::{App, AppContext, Entity, Task};
 use language_model::LanguageModelRequestMessage;
 use language_model::LanguageModelToolSchemaFormat;
@@ -76,6 +77,7 @@ impl Tool for CopyPathTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<CopyPathToolInput>(input) {

crates/assistant_tools/src/create_directory_tool.rs

@@ -1,6 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
+use gpui::AnyWindowHandle;
 use gpui::{App, Entity, Task};
 use language_model::LanguageModelRequestMessage;
 use language_model::LanguageModelToolSchemaFormat;
@@ -67,6 +68,7 @@ impl Tool for CreateDirectoryTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<CreateDirectoryToolInput>(input) {

crates/assistant_tools/src/create_file_tool.rs

@@ -1,6 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
+use gpui::AnyWindowHandle;
 use gpui::{App, Entity, Task};
 use language_model::LanguageModelRequestMessage;
 use language_model::LanguageModelToolSchemaFormat;
@@ -23,6 +24,9 @@ pub struct CreateFileToolInput {
     ///
     /// You can create a new file by providing a path of "directory1/new_file.txt"
     /// </example>
+    ///
+    /// Make sure to include this field before the `contents` field in the input object
+    /// so that we can display it immediately.
     pub path: String,
 
     /// The text contents of the file to create.
@@ -89,6 +93,7 @@ impl Tool for CreateFileTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<CreateFileToolInput>(input) {
@@ -112,9 +117,12 @@ impl Tool for CreateFileTool {
                 .await
                 .map_err(|err| anyhow!("Unable to open buffer for {destination_path}: {err}"))?;
             cx.update(|cx| {
+                action_log.update(cx, |action_log, cx| {
+                    action_log.track_buffer(buffer.clone(), cx)
+                });
                 buffer.update(cx, |buffer, cx| buffer.set_text(contents, cx));
                 action_log.update(cx, |action_log, cx| {
-                    action_log.will_create_buffer(buffer.clone(), cx)
+                    action_log.buffer_edited(buffer.clone(), cx)
                 });
             })?;
 

crates/assistant_tools/src/delete_path_tool.rs

@@ -2,7 +2,7 @@ use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
 use futures::{SinkExt, StreamExt, channel::mpsc};
-use gpui::{App, AppContext, Entity, Task};
+use gpui::{AnyWindowHandle, App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::{Project, ProjectPath};
 use schemars::JsonSchema;
@@ -62,6 +62,7 @@ impl Tool for DeletePathTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let path_str = match serde_json::from_value::<DeletePathToolInput>(input) {

crates/assistant_tools/src/diagnostics_tool.rs

@@ -1,7 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use language::{DiagnosticSeverity, OffsetRangeExt};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -82,6 +82,7 @@ impl Tool for DiagnosticsTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         match serde_json::from_value::<DiagnosticsToolInput>(input)

crates/assistant_tools/src/edit_agent.rs

@@ -0,0 +1,526 @@
+mod edit_parser;
+
+use crate::{Template, Templates};
+use anyhow::{Result, anyhow};
+use assistant_tool::ActionLog;
+use edit_parser::EditParser;
+use futures::{Stream, StreamExt, stream};
+use gpui::{AsyncApp, Entity};
+use language::{Anchor, Bias, Buffer, BufferSnapshot};
+use language_model::{
+    LanguageModel, LanguageModelRequest, LanguageModelRequestMessage, MessageContent, Role,
+};
+use serde::Serialize;
+use smallvec::SmallVec;
+use std::{ops::Range, path::PathBuf, sync::Arc};
+
+#[derive(Serialize)]
+pub struct EditAgentTemplate {
+    path: Option<PathBuf>,
+    file_content: String,
+    instructions: String,
+}
+
+impl Template for EditAgentTemplate {
+    const TEMPLATE_NAME: &'static str = "edit_agent.hbs";
+}
+
+pub struct EditAgent {
+    model: Arc<dyn LanguageModel>,
+    action_log: Entity<ActionLog>,
+    templates: Arc<Templates>,
+}
+
+impl EditAgent {
+    pub fn new(
+        model: Arc<dyn LanguageModel>,
+        action_log: Entity<ActionLog>,
+        templates: Arc<Templates>,
+    ) -> Self {
+        EditAgent {
+            model,
+            action_log,
+            templates,
+        }
+    }
+
+    pub async fn edit(
+        &self,
+        buffer: Entity<Buffer>,
+        instructions: String,
+        cx: &mut AsyncApp,
+    ) -> Result<()> {
+        let edits = self.stream_edits(buffer.clone(), instructions, cx).await?;
+        self.apply_edits(buffer, edits, cx).await?;
+        Ok(())
+    }
+
+    async fn apply_edits(
+        &self,
+        buffer: Entity<Buffer>,
+        edits: impl Stream<Item = Result<(Range<Anchor>, String)>>,
+        cx: &mut AsyncApp,
+    ) -> Result<()> {
+        // todo!("group all edits into one transaction")
+        // todo!("add tests for this")
+
+        // Ensure the buffer is tracked by the action log.
+        self.action_log
+            .update(cx, |log, cx| log.track_buffer(buffer.clone(), cx))?;
+
+        futures::pin_mut!(edits);
+        while let Some(edit) = edits.next().await {
+            let (range, content) = edit?;
+            // Edit the buffer and report the edit as part of the same effect cycle, otherwise
+            // the edit will be reported as if the user made it.
+            cx.update(|cx| {
+                buffer.update(cx, |buffer, cx| buffer.edit([(range, content)], None, cx));
+                self.action_log
+                    .update(cx, |log, cx| log.buffer_edited(buffer.clone(), cx))
+            })?;
+        }
+
+        Ok(())
+    }
+
+    async fn stream_edits(
+        &self,
+        buffer: Entity<Buffer>,
+        instructions: String,
+        cx: &mut AsyncApp,
+    ) -> Result<impl use<> + Stream<Item = Result<(Range<Anchor>, String)>>> {
+        println!("{}\n\n", instructions);
+        let snapshot = buffer.read_with(cx, |buffer, _| buffer.snapshot())?;
+        let path = cx.update(|cx| snapshot.resolve_file_path(cx, true))?;
+        // todo!("move to background")
+        let prompt = EditAgentTemplate {
+            path,
+            file_content: snapshot.text(),
+            instructions,
+        }
+        .render(&self.templates)?;
+        let request = LanguageModelRequest {
+            messages: vec![LanguageModelRequestMessage {
+                role: Role::User,
+                content: vec![MessageContent::Text(prompt)],
+                cache: false,
+            }],
+            ..Default::default()
+        };
+        let mut parser = EditParser::new();
+        let stream = self.model.stream_completion_text(request, cx).await?.stream;
+        Ok(stream.flat_map(move |chunk| {
+            let mut edits = SmallVec::new();
+            let mut error = None;
+            let snapshot = snapshot.clone();
+            match chunk {
+                Ok(chunk) => edits = parser.push(&chunk),
+                Err(err) => error = Some(Err(anyhow!(err))),
+            }
+            stream::iter(
+                edits
+                    .into_iter()
+                    .map(move |edit| {
+                        dbg!(&edit);
+                        let range = Self::resolve_location(&snapshot, &edit.old_text);
+                        Ok((range, edit.new_text))
+                    })
+                    .chain(error),
+            )
+        }))
+    }
+
+    fn resolve_location(buffer: &BufferSnapshot, search_query: &str) -> Range<Anchor> {
+        const INSERTION_COST: u32 = 3;
+        const DELETION_COST: u32 = 10;
+        const WHITESPACE_INSERTION_COST: u32 = 1;
+        const WHITESPACE_DELETION_COST: u32 = 1;
+
+        let buffer_len = buffer.len();
+        let query_len = search_query.len();
+        let mut matrix = SearchMatrix::new(query_len + 1, buffer_len + 1);
+        let mut leading_deletion_cost = 0_u32;
+        for (row, query_byte) in search_query.bytes().enumerate() {
+            let deletion_cost = if query_byte.is_ascii_whitespace() {
+                WHITESPACE_DELETION_COST
+            } else {
+                DELETION_COST
+            };
+
+            leading_deletion_cost = leading_deletion_cost.saturating_add(deletion_cost);
+            matrix.set(
+                row + 1,
+                0,
+                SearchState::new(leading_deletion_cost, SearchDirection::Diagonal),
+            );
+
+            for (col, buffer_byte) in buffer.bytes_in_range(0..buffer.len()).flatten().enumerate() {
+                let insertion_cost = if buffer_byte.is_ascii_whitespace() {
+                    WHITESPACE_INSERTION_COST
+                } else {
+                    INSERTION_COST
+                };
+
+                let up = SearchState::new(
+                    matrix.get(row, col + 1).cost.saturating_add(deletion_cost),
+                    SearchDirection::Up,
+                );
+                let left = SearchState::new(
+                    matrix.get(row + 1, col).cost.saturating_add(insertion_cost),
+                    SearchDirection::Left,
+                );
+                let diagonal = SearchState::new(
+                    if query_byte == *buffer_byte {
+                        matrix.get(row, col).cost
+                    } else {
+                        matrix
+                            .get(row, col)
+                            .cost
+                            .saturating_add(deletion_cost + insertion_cost)
+                    },
+                    SearchDirection::Diagonal,
+                );
+                matrix.set(row + 1, col + 1, up.min(left).min(diagonal));
+            }
+        }
+
+        // Traceback to find the best match
+        let mut best_buffer_end = buffer_len;
+        let mut best_cost = u32::MAX;
+        for col in 1..=buffer_len {
+            let cost = matrix.get(query_len, col).cost;
+            if cost < best_cost {
+                best_cost = cost;
+                best_buffer_end = col;
+            }
+        }
+
+        let mut query_ix = query_len;
+        let mut buffer_ix = best_buffer_end;
+        while query_ix > 0 && buffer_ix > 0 {
+            let current = matrix.get(query_ix, buffer_ix);
+            match current.direction {
+                SearchDirection::Diagonal => {
+                    query_ix -= 1;
+                    buffer_ix -= 1;
+                }
+                SearchDirection::Up => {
+                    query_ix -= 1;
+                }
+                SearchDirection::Left => {
+                    buffer_ix -= 1;
+                }
+            }
+        }
+
+        let mut start = buffer.offset_to_point(buffer.clip_offset(buffer_ix, Bias::Left));
+        start.column = 0;
+        let mut end = buffer.offset_to_point(buffer.clip_offset(best_buffer_end, Bias::Right));
+        if end.column > 0 {
+            end.column = buffer.line_len(end.row);
+        }
+
+        buffer.anchor_after(start)..buffer.anchor_before(end)
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
+enum SearchDirection {
+    Up,
+    Left,
+    Diagonal,
+}
+
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
+struct SearchState {
+    cost: u32,
+    direction: SearchDirection,
+}
+
+impl SearchState {
+    fn new(cost: u32, direction: SearchDirection) -> Self {
+        Self { cost, direction }
+    }
+}
+
+struct SearchMatrix {
+    cols: usize,
+    data: Vec<SearchState>,
+}
+
+impl SearchMatrix {
+    fn new(rows: usize, cols: usize) -> Self {
+        SearchMatrix {
+            cols,
+            data: vec![SearchState::new(0, SearchDirection::Diagonal); rows * cols],
+        }
+    }
+
+    fn get(&self, row: usize, col: usize) -> SearchState {
+        self.data[row * self.cols + col]
+    }
+
+    fn set(&mut self, row: usize, col: usize, cost: SearchState) {
+        self.data[row * self.cols + col] = cost;
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use client::{Client, UserStore};
+    use collections::HashSet;
+    use fs::FakeFs;
+    use gpui::{AppContext, TestAppContext};
+    use indoc::indoc;
+    use language_model::LanguageModelRegistry;
+    use project::Project;
+    use rand::prelude::*;
+    use reqwest_client::ReqwestClient;
+    use serde_json::json;
+    use std::{fmt::Write as _, io::Write as _, path::Path, sync::mpsc};
+    use util::path;
+
+    #[test]
+    fn test_delete_run_git_blame() {
+        eval(
+            100,
+            0.9,
+            Eval {
+                input_path: "root/blame.rs".into(),
+                input_content: include_str!("fixtures/delete_run_git_blame/before.rs").into(),
+                instructions: indoc! {r#"
+                    Let's delete the `run_git_blame` function while keeping all other code intact:
+
+                    // ... existing code ...
+                    const GIT_BLAME_NO_COMMIT_ERROR: &str = "fatal: no such ref: HEAD";
+                    const GIT_BLAME_NO_PATH: &str = "fatal: no such path";
+
+                    #[derive(Serialize, Deserialize, Default, Debug, Clone, PartialEq, Eq)]
+                    pub struct BlameEntry {
+                    // ... existing code ...
+                "#}
+                .into(),
+                expected_output: include_str!("fixtures/delete_run_git_blame/after.rs").into(),
+            },
+        );
+    }
+
+    #[test]
+    fn test_extract_handle_command_output() {
+        eval(
+            100,
+            0.9,
+            Eval {
+                input_path: "root/blame.rs".into(),
+                input_content: include_str!("fixtures/extract_handle_command_output/before.rs").into(),
+                instructions: indoc! {r#"
+                    Extract `handle_command_output` method from `run_git_blame`.
+
+                    // ... existing code ...
+
+                    async fn run_git_blame(
+                        git_binary: &Path,
+                        working_directory: &Path,
+                        path: &Path,
+                        contents: &Rope,
+                    ) -> Result<String> {
+                        let mut child = util::command::new_smol_command(git_binary)
+                            .current_dir(working_directory)
+                            .arg("blame")
+                            .arg("--incremental")
+                            .arg("--contents")
+                            .arg("-")
+                            .arg(path.as_os_str())
+                            .stdin(Stdio::piped())
+                            .stdout(Stdio::piped())
+                            .stderr(Stdio::piped())
+                            .spawn()
+                            .map_err(|e| anyhow!("Failed to start git blame process: {}", e))?;
+
+                        let stdin = child
+                            .stdin
+                            .as_mut()
+                            .context("failed to get pipe to stdin of git blame command")?;
+
+                        for chunk in contents.chunks() {
+                            stdin.write_all(chunk.as_bytes()).await?;
+                        }
+                        stdin.flush().await?;
+
+                        let output = child
+                            .output()
+                            .await
+                            .map_err(|e| anyhow!("Failed to read git blame output: {}", e))?;
+
+                        handle_command_output(output)
+                    }
+
+                    fn handle_command_output(output: std::process::Output) -> Result<String> {
+                        if !output.status.success() {
+                            let stderr = String::from_utf8_lossy(&output.stderr);
+                            let trimmed = stderr.trim();
+                            if trimmed == GIT_BLAME_NO_COMMIT_ERROR || trimmed.contains(GIT_BLAME_NO_PATH) {
+                                return Ok(String::new());
+                            }
+                            return Err(anyhow!("git blame process failed: {}", stderr));
+                        }
+
+                        Ok(String::from_utf8(output.stdout)?)
+                    }
+
+                    // ... existing code ...
+                "#}
+                .into(),
+                expected_output: include_str!("fixtures/extract_handle_command_output/after.rs").into()
+            },
+        );
+    }
+
+    #[derive(Clone)]
+    struct Eval {
+        input_path: PathBuf,
+        input_content: String,
+        instructions: String,
+        expected_output: String,
+    }
+
+    fn eval(iterations: usize, expected_pass_ratio: f32, eval: Eval) {
+        let executor = gpui::background_executor();
+        let (tx, rx) = mpsc::channel();
+        for _ in 0..iterations {
+            let eval = eval.clone();
+            let tx = tx.clone();
+            executor
+                .spawn(async move {
+                    let dispatcher = gpui::TestDispatcher::new(StdRng::from_entropy());
+                    let mut cx = TestAppContext::build(dispatcher, None);
+                    let output = cx.executor().block_test(async {
+                        let test = agent_test(&mut cx).await;
+                        apply_edits(
+                            eval.input_path,
+                            eval.input_content,
+                            eval.instructions,
+                            &test,
+                            &mut cx,
+                        )
+                        .await
+                    });
+                    tx.send(output).unwrap();
+                })
+                .detach();
+        }
+        drop(tx);
+
+        let mut evaluated_count = 0;
+        report_progress(evaluated_count, iterations);
+
+        let mut failed_count = 0;
+        let mut failed_message = String::new();
+        let mut failed_outputs = HashSet::default();
+        while let Ok(output) = rx.recv() {
+            if output != eval.expected_output {
+                failed_count += 1;
+                if failed_outputs.insert(output.clone()) {
+                    writeln!(
+                        failed_message,
+                        "=======\n{}\n=======",
+                        pretty_assertions::StrComparison::new(&output, &eval.expected_output)
+                    )
+                    .unwrap();
+                }
+            }
+
+            evaluated_count += 1;
+            report_progress(evaluated_count, iterations);
+        }
+
+        let actual_pass_ratio = (iterations - failed_count) as f32 / iterations as f32;
+        println!("Actual pass ratio: {}\n", actual_pass_ratio);
+        assert!(
+            actual_pass_ratio >= expected_pass_ratio,
+            "Expected pass ratio: {}\nActual pass ratio: {}\nFailures: {}",
+            expected_pass_ratio,
+            actual_pass_ratio,
+            failed_message
+        );
+    }
+
+    fn report_progress(evaluated_count: usize, iterations: usize) {
+        print!("\r\x1b[KEvaluated {}/{}", evaluated_count, iterations);
+        std::io::stdout().flush().unwrap();
+    }
+
+    async fn apply_edits(
+        path: impl AsRef<Path>,
+        content: impl Into<Arc<str>>,
+        instructions: impl Into<String>,
+        test: &EditAgentTest,
+        cx: &mut TestAppContext,
+    ) -> String {
+        let path = test
+            .project
+            .read_with(cx, |project, cx| project.find_project_path(path, cx))
+            .unwrap();
+        let buffer = test
+            .project
+            .update(cx, |project, cx| project.open_buffer(path, cx))
+            .await
+            .unwrap();
+        buffer.update(cx, |buffer, cx| buffer.set_text(content, cx));
+        test.agent
+            .edit(buffer.clone(), instructions.into(), &mut cx.to_async())
+            .await
+            .unwrap();
+        buffer.update(cx, |buffer, _cx| buffer.text())
+    }
+
+    struct EditAgentTest {
+        agent: EditAgent,
+        project: Entity<Project>,
+    }
+
+    async fn agent_test(cx: &mut TestAppContext) -> EditAgentTest {
+        cx.executor().allow_parking();
+        cx.update(settings::init);
+        cx.update(Project::init_settings);
+        cx.update(language::init);
+        cx.update(gpui_tokio::init);
+        cx.update(client::init_settings);
+
+        let fs = FakeFs::new(cx.executor().clone());
+        fs.insert_tree("/root", json!({})).await;
+        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
+        let model = cx
+            .update(|cx| {
+                let http_client = ReqwestClient::user_agent("agent tests").unwrap();
+                cx.set_http_client(Arc::new(http_client));
+
+                let client = Client::production(cx);
+                let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
+                language_model::init(client.clone(), cx);
+                language_models::init(user_store.clone(), client.clone(), fs.clone(), cx);
+
+                let models = LanguageModelRegistry::read_global(cx);
+                let model = models
+                    .available_models(cx)
+                    .find(|model| model.id().0 == "gemini-2.0-flash")
+                    .unwrap();
+
+                let provider = models.provider(&model.provider_id()).unwrap();
+                let authenticated = provider.authenticate(cx);
+
+                cx.spawn(async move |_| {
+                    authenticated.await.unwrap();
+                    model
+                })
+            })
+            .await;
+        let action_log = cx.new(|_| ActionLog::new(project.clone()));
+
+        EditAgentTest {
+            agent: EditAgent::new(model, action_log, Templates::new()),
+            project,
+        }
+    }
+}

crates/assistant_tools/src/edit_agent/edit_parser.rs

@@ -0,0 +1,246 @@
+use smallvec::SmallVec;
+use std::mem;
+
+#[derive(Debug, Eq, PartialEq)]
+pub struct Edit {
+    pub old_text: String,
+    pub new_text: String,
+}
+
+#[derive(Debug)]
+pub struct EditParser {
+    state: EditParserState,
+    buffer: String,
+}
+
+#[derive(Debug, PartialEq)]
+enum EditParserState {
+    Pending,
+    WithinOldText,
+    AfterOldText { old_text: String },
+    WithinNewText { old_text: String },
+}
+
+impl EditParser {
+    pub fn new() -> Self {
+        EditParser {
+            state: EditParserState::Pending,
+            buffer: String::new(),
+        }
+    }
+
+    pub fn push(&mut self, chunk: &str) -> SmallVec<[Edit; 1]> {
+        self.buffer.push_str(chunk);
+
+        let mut edits = SmallVec::new();
+        loop {
+            match &mut self.state {
+                EditParserState::Pending => {
+                    if let Some(start) = self.buffer.find("<old_text>") {
+                        self.buffer.drain(..start + "<old_text>".len());
+                        self.state = EditParserState::WithinOldText;
+                    } else {
+                        break;
+                    }
+                }
+                EditParserState::WithinOldText => {
+                    if let Some(end) = self.buffer.find("</old_text>") {
+                        let mut start = 0;
+                        if self.buffer.starts_with('\n') {
+                            start = 1;
+                        }
+                        let mut old_text = self.buffer[start..end].to_string();
+                        if old_text.ends_with('\n') {
+                            old_text.pop();
+                        }
+
+                        self.buffer.drain(..end + "</old_text>".len());
+                        self.state = EditParserState::AfterOldText { old_text };
+                    } else {
+                        break;
+                    }
+                }
+                EditParserState::AfterOldText { old_text } => {
+                    if let Some(start) = self.buffer.find("<new_text>") {
+                        self.buffer.drain(..start + "<new_text>".len());
+                        self.state = EditParserState::WithinNewText {
+                            old_text: mem::take(old_text),
+                        };
+                    } else {
+                        break;
+                    }
+                }
+                EditParserState::WithinNewText { old_text } => {
+                    if let Some(end) = self.buffer.find("</new_text>") {
+                        let mut start = 0;
+                        if self.buffer.starts_with('\n') {
+                            start = 1;
+                        }
+                        let mut new_text = self.buffer[start..end].to_string();
+                        if new_text.ends_with('\n') {
+                            new_text.pop();
+                        }
+                        edits.push(Edit {
+                            old_text: mem::take(old_text),
+                            new_text,
+                        });
+
+                        self.buffer.drain(..end + "</new_text>".len());
+                        self.state = EditParserState::Pending;
+                    } else {
+                        break;
+                    }
+                }
+            }
+        }
+        edits
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use indoc::indoc;
+    use rand::prelude::*;
+    use std::cmp;
+
+    #[gpui::test(iterations = 1000)]
+    fn test_single_edit(mut rng: StdRng) {
+        assert_eq!(
+            parse(
+                "<old_text>original</old_text><new_text>updated</new_text>",
+                &mut rng
+            ),
+            vec![Edit {
+                old_text: "original".to_string(),
+                new_text: "updated".to_string(),
+            }]
+        )
+    }
+
+    #[gpui::test(iterations = 1000)]
+    fn test_multiple_edits(mut rng: StdRng) {
+        assert_eq!(
+            parse(
+                indoc! {"
+                    <old_text>
+                    first old
+                    </old_text><new_text>first new</new_text>
+                    <old_text>second old</old_text><new_text>
+                    second new
+                    </new_text>
+                "},
+                &mut rng
+            ),
+            vec![
+                Edit {
+                    old_text: "first old".to_string(),
+                    new_text: "first new".to_string(),
+                },
+                Edit {
+                    old_text: "second old".to_string(),
+                    new_text: "second new".to_string(),
+                },
+            ]
+        );
+    }
+
+    #[gpui::test(iterations = 1000)]
+    fn test_edits_with_extra_text(mut rng: StdRng) {
+        assert_eq!(
+            parse(
+                indoc! {"
+                    ignore this <old_text>
+                    content</old_text>extra stuff<new_text>updated content</new_text>trailing data
+                    more text <old_text>second item
+                    </old_text>middle text<new_text>modified second item</new_text>end
+                    <old_text>third case</old_text><new_text>improved third case</new_text> with trailing text
+                "},
+                &mut rng
+            ),
+            vec![
+                Edit {
+                    old_text: "content".to_string(),
+                    new_text: "updated content".to_string(),
+                },
+                Edit {
+                    old_text: "second item".to_string(),
+                    new_text: "modified second item".to_string(),
+                },
+                Edit {
+                    old_text: "third case".to_string(),
+                    new_text: "improved third case".to_string(),
+                },
+            ]
+        );
+    }
+
+    #[gpui::test(iterations = 1000)]
+    fn test_nested_tags(mut rng: StdRng) {
+        assert_eq!(
+            parse(
+                "<old_text>code with <tag>nested</tag> elements</old_text><new_text>new <code>content</code></new_text>",
+                &mut rng
+            ),
+            vec![Edit {
+                old_text: "code with <tag>nested</tag> elements".to_string(),
+                new_text: "new <code>content</code>".to_string(),
+            }]
+        );
+    }
+
+    #[gpui::test(iterations = 1000)]
+    fn test_empty_old_and_new_text(mut rng: StdRng) {
+        assert_eq!(
+            parse("<old_text></old_text><new_text></new_text>", &mut rng),
+            vec![Edit {
+                old_text: "".to_string(),
+                new_text: "".to_string(),
+            }]
+        );
+    }
+
+    #[gpui::test(iterations = 1000)]
+    fn test_with_special_characters(mut rng: StdRng) {
+        assert_eq!(
+            parse(
+                "<old_text>function(x) { return x * 2; }</old_text><new_text>function(x) { return x ** 2; }</new_text>",
+                &mut rng
+            ),
+            vec![Edit {
+                old_text: "function(x) { return x * 2; }".to_string(),
+                new_text: "function(x) { return x ** 2; }".to_string(),
+            }]
+        );
+    }
+
+    #[gpui::test(iterations = 100)]
+    fn test_multiline_content(mut rng: StdRng) {
+        assert_eq!(
+            parse(
+                "<old_text>line1\nline2\nline3</old_text><new_text>line1\nmodified line2\nline3</new_text>",
+                &mut rng
+            ),
+            vec![Edit {
+                old_text: "line1\nline2\nline3".to_string(),
+                new_text: "line1\nmodified line2\nline3".to_string(),
+            }]
+        );
+    }
+
+    fn parse(input: &str, rng: &mut StdRng) -> Vec<Edit> {
+        let mut parser = EditParser::new();
+        let chunk_count = rng.gen_range(1..=cmp::min(input.len(), 50));
+        let mut chunk_indices = (0..input.len()).choose_multiple(rng, chunk_count);
+        chunk_indices.sort();
+
+        let mut edits = Vec::new();
+        let mut last_ix = 0;
+        for chunk_ix in chunk_indices {
+            edits.extend(parser.push(&input[last_ix..chunk_ix]));
+            last_ix = chunk_ix;
+        }
+        edits.extend(parser.push(&input[last_ix..]));
+        edits
+    }
+}

crates/assistant_tools/src/edit_file_tool.rs

@@ -1,18 +1,39 @@
-use crate::{replace::replace_with_flexible_indent, schema::json_schema_for};
-use anyhow::{Context as _, Result, anyhow};
-use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, AppContext, AsyncApp, Entity, Task};
-use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
+use crate::{Templates, edit_agent::EditAgent, schema::json_schema_for};
+use anyhow::{Result, anyhow};
+use assistant_tool::{ActionLog, AnyToolCard, Tool, ToolCard, ToolResult, ToolUseStatus};
+use buffer_diff::{BufferDiff, BufferDiffSnapshot};
+use editor::{Editor, EditorMode, MultiBuffer, PathKey};
+use gpui::{
+    AnyWindowHandle, App, AppContext, AsyncApp, Context, Entity, EntityId, Task, WeakEntity,
+};
+use language::{
+    Anchor, Buffer, Capability, LanguageRegistry, LineEnding, OffsetRangeExt, Rope, TextBuffer,
+};
+use language_model::{
+    LanguageModelRegistry, LanguageModelRequestMessage, LanguageModelToolSchemaFormat,
+};
 use project::Project;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
-use std::{path::PathBuf, sync::Arc};
-use ui::IconName;
-
-use crate::replace::replace_exact;
+use std::{
+    path::{Path, PathBuf},
+    sync::Arc,
+};
+use ui::{Disclosure, Tooltip, Window, prelude::*};
+use util::ResultExt;
+use workspace::Workspace;
 
 #[derive(Debug, Serialize, Deserialize, JsonSchema)]
 pub struct EditFileToolInput {
+    /// A user-friendly markdown description of the edit. This will be shown in the UI.
+    ///
+    /// <example>Fix API endpoint URLs</example>
+    /// <example>Update copyright year in `page_footer`</example>
+    ///
+    /// Make sure to include this field before all the others in the input object
+    /// so that we can display it immediately.
+    pub display_description: String,
+
     /// The full path of the file to modify in the project.
     ///
     /// WARNING: When specifying which file path need changing, you MUST
@@ -34,17 +55,35 @@ pub struct EditFileToolInput {
     /// </example>
     pub path: PathBuf,
 
-    /// A user-friendly markdown description of what's being replaced. This will be shown in the UI.
+    /// Edit instructions that will be interpreted by a less intelligent model,
+    /// which will quickly apply the edits. You should make it clear what the
+    /// edits are, while also minimizing the unchanged code you write. The model
+    /// does not have access to this conversation, so you must make sure the
+    /// instructions are self-contained and do not rely on external context.
     ///
-    /// <example>Fix API endpoint URLs</example>
-    /// <example>Update copyright year in `page_footer`</example>
-    pub display_description: String,
-
-    /// The text to replace.
-    pub old_string: String,
-
-    /// The text to replace it with.
-    pub new_string: String,
+    /// Insert `// ... existing code ...` comments in your output to represent
+    /// unchanged code ABOVE, BELOW, and IN BETWEEN edited lines.
+    ///
+    /// Bias towards repeating as few lines of the original file as possible to
+    /// convey the change. However, each edit should contain sufficient context
+    /// of unchanged lines to resolve ambiguity. When you want to delete a piece
+    /// of code, indicate a few lines above and below the code you want to
+    /// delete (surrounded by `// ... existing code ...`).
+    ///
+    /// Never forget to include `// ... existing code ...` comments to represent
+    /// unchanged lines, otherwise the small model may not understand the
+    /// context of your edit and will delete important code!
+    ///
+    /// <your_output>
+    /// // ... existing code ...
+    /// FIRST_EDIT
+    /// // ... existing code ...
+    /// SECOND_EDIT
+    /// // ... existing code ...
+    /// THIRD_EDIT
+    /// // ... existing code ...
+    /// </your_output>
+    pub edit_instructions: String,
 }
 
 #[derive(Debug, Serialize, Deserialize, JsonSchema)]
@@ -53,15 +92,11 @@ struct PartialInput {
     path: String,
     #[serde(default)]
     display_description: String,
-    #[serde(default)]
-    old_string: String,
-    #[serde(default)]
-    new_string: String,
 }
 
 pub struct EditFileTool;
 
-const DEFAULT_UI_TEXT: &str = "Edit file";
+const DEFAULT_UI_TEXT: &str = "Editing file";
 
 impl Tool for EditFileTool {
     fn name(&self) -> String {
@@ -87,7 +122,7 @@ impl Tool for EditFileTool {
     fn ui_text(&self, input: &serde_json::Value) -> String {
         match serde_json::from_value::<EditFileToolInput>(input.clone()) {
             Ok(input) => input.display_description,
-            Err(_) => "Edit file".to_string(),
+            Err(_) => "Editing file".to_string(),
         }
     }
 
@@ -113,6 +148,7 @@ impl Tool for EditFileTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<EditFileToolInput>(input) {
@@ -120,98 +156,454 @@ impl Tool for EditFileTool {
             Err(err) => return Task::ready(Err(anyhow!(err))).into(),
         };
 
-        cx.spawn(async move |cx: &mut AsyncApp| {
-            let project_path = project.read_with(cx, |project, cx| {
-                project
-                    .find_project_path(&input.path, cx)
-                    .context("Path not found in project")
-            })??;
+        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.display()
+            )))
+            .into();
+        };
+        let Some(worktree) = project
+            .read(cx)
+            .worktree_for_id(project_path.worktree_id, cx)
+        else {
+            return Task::ready(Err(anyhow!("Worktree not found for project path"))).into();
+        };
+        let exists = worktree.update(cx, |worktree, cx| {
+            worktree.file_exists(&project_path.path, cx)
+        });
+
+        let card = window.and_then(|window| {
+            window
+                .update(cx, |_, window, cx| {
+                    cx.new(|cx| {
+                        EditFileToolCard::new(input.path.clone(), project.clone(), window, cx)
+                    })
+                })
+                .ok()
+        });
+
+        let card_clone = card.clone();
+        // todo!("read model from settings...")
+        let models = LanguageModelRegistry::read_global(cx);
+        let model = models
+            .available_models(cx)
+            .find(|model| model.id().0 == "gemini-2.0-flash")
+            .unwrap();
+        let provider = models.provider(&model.provider_id()).unwrap();
+        let authenticated = provider.authenticate(cx);
+
+        // todo!("reuse templates")
+        let edit_agent = EditAgent::new(model, action_log, Templates::new());
+        let task = cx.spawn(async move |cx: &mut AsyncApp| {
+            authenticated.await?;
+            if !exists.await? {
+                return Err(anyhow!("{} not found", input.path.display()));
+            }
 
             let buffer = project
-                .update(cx, |project, cx| project.open_buffer(project_path, cx))?
+                .update(cx, |project, cx| {
+                    project.open_buffer(project_path.clone(), cx)
+                })?
                 .await?;
 
-            let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot())?;
+            let old_snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot())?;
+            edit_agent
+                .edit(buffer.clone(), input.edit_instructions.clone(), cx)
+                .await?;
+            let new_snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot())?;
+            project
+                .update(cx, |project, cx| project.save_buffer(buffer, cx))?
+                .await?;
 
-            if input.old_string.is_empty() {
-                return Err(anyhow!("`old_string` cannot be empty. Use a different tool if you want to create a file."));
-            }
+            let old_text = cx.background_spawn({
+                let old_snapshot = old_snapshot.clone();
+                async move { old_snapshot.text() }
+            });
+            let new_text = cx.background_spawn({
+                let new_snapshot = new_snapshot.clone();
+                async move { new_snapshot.text() }
+            });
+            let diff = cx.background_spawn(async move {
+                language::unified_diff(&old_snapshot.text(), &new_snapshot.text())
+            });
+            let (old_text, new_text, diff) = futures::join!(old_text, new_text, diff);
 
-            if input.old_string == input.new_string {
-                return Err(anyhow!("The `old_string` and `new_string` are identical, so no changes would be made."));
-            }
-
-            let result = cx
-                .background_spawn(async move {
-                    // Try to match exactly
-                    let diff = replace_exact(&input.old_string, &input.new_string, &snapshot)
-                    .await
-                    // If that fails, try being flexible about indentation
-                    .or_else(|| replace_with_flexible_indent(&input.old_string, &input.new_string, &snapshot))?;
-
-                    if diff.edits.is_empty() {
-                        return None;
-                    }
-
-                    let old_text = snapshot.text();
-
-                    Some((old_text, diff))
+            if let Some(card) = card_clone {
+                card.update(cx, |card, cx| {
+                    card.set_diff(project_path.path.clone(), old_text, new_text, cx);
                 })
-                .await;
+                .log_err();
+            }
 
-            let Some((old_text, diff)) = result else {
-                let err = buffer.read_with(cx, |buffer, _cx| {
-                    let file_exists = buffer
-                        .file()
-                        .map_or(false, |file| file.disk_state().exists());
+            Ok(format!(
+                "Edited {}:\n\n```diff\n{}\n```",
+                input.path.display(),
+                diff
+            ))
+        });
 
-                    if !file_exists {
-                        anyhow!("{} does not exist", input.path.display())
-                    } else if buffer.is_empty() {
-                        anyhow!(
-                            "{} is empty, so the provided `old_string` wasn't found.",
-                            input.path.display()
-                        )
-                    } else {
-                        anyhow!("Failed to match the provided `old_string`")
-                    }
-                })?;
-
-                return Err(err)
-            };
-
-            let snapshot = cx.update(|cx| {
-                action_log.update(cx, |log, cx| {
-                    log.buffer_read(buffer.clone(), cx)
-                });
-                let snapshot = buffer.update(cx, |buffer, cx| {
-                    buffer.finalize_last_transaction();
-                    buffer.apply_diff(diff, cx);
-                    buffer.finalize_last_transaction();
-                    buffer.snapshot()
-                });
-                action_log.update(cx, |log, cx| {
-                    log.buffer_edited(buffer.clone(), cx)
-                });
-                snapshot
-            })?;
-
-            project.update( cx, |project, cx| {
-                project.save_buffer(buffer, cx)
-            })?.await?;
-
-            let diff_str = cx.background_spawn(async move {
-                let new_text = snapshot.text();
-                language::unified_diff(&old_text, &new_text)
-            }).await;
-
-
-            Ok(format!("Edited {}:\n\n```diff\n{}\n```", input.path.display(), diff_str))
-
-        }).into()
+        ToolResult {
+            output: task,
+            card: card.map(AnyToolCard::from),
+        }
     }
 }
 
+pub struct EditFileToolCard {
+    path: PathBuf,
+    editor: Entity<Editor>,
+    multibuffer: Entity<MultiBuffer>,
+    project: Entity<Project>,
+    diff_task: Option<Task<Result<()>>>,
+    preview_expanded: bool,
+    full_height_expanded: bool,
+    editor_unique_id: EntityId,
+}
+
+impl EditFileToolCard {
+    fn new(path: PathBuf, project: Entity<Project>, window: &mut Window, cx: &mut App) -> Self {
+        let multibuffer = cx.new(|_| MultiBuffer::without_headers(Capability::ReadOnly));
+        let editor = cx.new(|cx| {
+            let mut editor = Editor::new(
+                EditorMode::Full {
+                    scale_ui_elements_with_buffer_font_size: false,
+                    show_active_line_background: false,
+                    sized_by_content: true,
+                },
+                multibuffer.clone(),
+                Some(project.clone()),
+                window,
+                cx,
+            );
+            editor.set_show_scrollbars(false, cx);
+            editor.set_show_gutter(false, cx);
+            editor.disable_inline_diagnostics();
+            editor.disable_scrolling(cx);
+            editor.disable_expand_excerpt_buttons(cx);
+            editor.set_show_breakpoints(false, cx);
+            editor.set_show_code_actions(false, cx);
+            editor.set_show_git_diff_gutter(false, cx);
+            editor.set_expand_all_diff_hunks(cx);
+            editor
+        });
+        Self {
+            editor_unique_id: editor.entity_id(),
+            path,
+            project,
+            editor,
+            multibuffer,
+            diff_task: None,
+            preview_expanded: true,
+            full_height_expanded: false,
+        }
+    }
+
+    fn set_diff(
+        &mut self,
+        path: Arc<Path>,
+        old_text: String,
+        new_text: String,
+        cx: &mut Context<Self>,
+    ) {
+        let language_registry = self.project.read(cx).languages().clone();
+        self.diff_task = Some(cx.spawn(async move |this, cx| {
+            let buffer = build_buffer(new_text, path.clone(), &language_registry, cx).await?;
+            let buffer_diff = build_buffer_diff(old_text, &buffer, &language_registry, cx).await?;
+
+            this.update(cx, |this, cx| {
+                this.multibuffer.update(cx, |multibuffer, cx| {
+                    let snapshot = buffer.read(cx).snapshot();
+                    let diff = buffer_diff.read(cx);
+                    let diff_hunk_ranges = diff
+                        .hunks_intersecting_range(Anchor::MIN..Anchor::MAX, &snapshot, cx)
+                        .map(|diff_hunk| diff_hunk.buffer_range.to_point(&snapshot))
+                        .collect::<Vec<_>>();
+                    let (_, is_newly_added) = multibuffer.set_excerpts_for_path(
+                        PathKey::for_buffer(&buffer, cx),
+                        buffer,
+                        diff_hunk_ranges,
+                        editor::DEFAULT_MULTIBUFFER_CONTEXT,
+                        cx,
+                    );
+                    debug_assert!(is_newly_added);
+                    multibuffer.add_diff(buffer_diff, cx);
+                });
+                cx.notify();
+            })
+        }));
+    }
+}
+
+impl ToolCard for EditFileToolCard {
+    fn render(
+        &mut self,
+        status: &ToolUseStatus,
+        window: &mut Window,
+        workspace: WeakEntity<Workspace>,
+        cx: &mut Context<Self>,
+    ) -> impl IntoElement {
+        let failed = matches!(status, ToolUseStatus::Error(_));
+
+        let path_label_button = h_flex()
+            .id(("edit-tool-path-label-button", self.editor_unique_id))
+            .w_full()
+            .max_w_full()
+            .px_1()
+            .gap_0p5()
+            .cursor_pointer()
+            .rounded_sm()
+            .opacity(0.8)
+            .hover(|label| {
+                label
+                    .opacity(1.)
+                    .bg(cx.theme().colors().element_hover.opacity(0.5))
+            })
+            .tooltip(Tooltip::text("Jump to File"))
+            .child(
+                h_flex()
+                    .child(
+                        Icon::new(IconName::Pencil)
+                            .size(IconSize::XSmall)
+                            .color(Color::Muted),
+                    )
+                    .child(
+                        div()
+                            .text_size(rems(0.8125))
+                            .child(self.path.display().to_string())
+                            .ml_1p5()
+                            .mr_0p5(),
+                    )
+                    .child(
+                        Icon::new(IconName::ArrowUpRight)
+                            .size(IconSize::XSmall)
+                            .color(Color::Ignored),
+                    ),
+            )
+            .on_click({
+                let path = self.path.clone();
+                let workspace = workspace.clone();
+                move |_, window, cx| {
+                    workspace
+                        .update(cx, {
+                            |workspace, cx| {
+                                let Some(project_path) =
+                                    workspace.project().read(cx).find_project_path(&path, cx)
+                                else {
+                                    return;
+                                };
+                                let open_task =
+                                    workspace.open_path(project_path, None, true, window, cx);
+                                window
+                                    .spawn(cx, async move |cx| {
+                                        let item = open_task.await?;
+                                        if let Some(active_editor) = item.downcast::<Editor>() {
+                                            active_editor
+                                                .update_in(cx, |editor, window, cx| {
+                                                    editor.go_to_singleton_buffer_point(
+                                                        language::Point::new(0, 0),
+                                                        window,
+                                                        cx,
+                                                    );
+                                                })
+                                                .log_err();
+                                        }
+                                        anyhow::Ok(())
+                                    })
+                                    .detach_and_log_err(cx);
+                            }
+                        })
+                        .ok();
+                }
+            })
+            .into_any_element();
+
+        let codeblock_header_bg = cx
+            .theme()
+            .colors()
+            .element_background
+            .blend(cx.theme().colors().editor_foreground.opacity(0.025));
+
+        let codeblock_header = h_flex()
+            .flex_none()
+            .p_1()
+            .gap_1()
+            .justify_between()
+            .rounded_t_md()
+            .when(!failed, |header| header.bg(codeblock_header_bg))
+            .child(path_label_button)
+            .map(|container| {
+                if failed {
+                    container.child(
+                        Icon::new(IconName::Close)
+                            .size(IconSize::Small)
+                            .color(Color::Error),
+                    )
+                } else {
+                    container.child(
+                        Disclosure::new(
+                            ("edit-file-disclosure", self.editor_unique_id),
+                            self.preview_expanded,
+                        )
+                        .opened_icon(IconName::ChevronUp)
+                        .closed_icon(IconName::ChevronDown)
+                        .on_click(cx.listener(
+                            move |this, _event, _window, _cx| {
+                                this.preview_expanded = !this.preview_expanded;
+                            },
+                        )),
+                    )
+                }
+            });
+
+        let editor = self.editor.update(cx, |editor, cx| {
+            editor.render(window, cx).into_any_element()
+        });
+
+        let (full_height_icon, full_height_tooltip_label) = if self.full_height_expanded {
+            (IconName::ChevronUp, "Collapse Code Block")
+        } else {
+            (IconName::ChevronDown, "Expand Code Block")
+        };
+
+        let gradient_overlay = div()
+            .absolute()
+            .bottom_0()
+            .left_0()
+            .w_full()
+            .h_2_5()
+            .rounded_b_lg()
+            .bg(gpui::linear_gradient(
+                0.,
+                gpui::linear_color_stop(cx.theme().colors().editor_background, 0.),
+                gpui::linear_color_stop(cx.theme().colors().editor_background.opacity(0.), 1.),
+            ));
+
+        let border_color = cx.theme().colors().border.opacity(0.6);
+
+        v_flex()
+            .mb_2()
+            .border_1()
+            .when(failed, |card| card.border_dashed())
+            .border_color(border_color)
+            .rounded_lg()
+            .overflow_hidden()
+            .child(codeblock_header)
+            .when(!failed && self.preview_expanded, |card| {
+                card.child(
+                    v_flex()
+                        .relative()
+                        .overflow_hidden()
+                        .border_t_1()
+                        .border_color(border_color)
+                        .bg(cx.theme().colors().editor_background)
+                        .map(|editor_container| {
+                            if self.full_height_expanded {
+                                editor_container.h_full()
+                            } else {
+                                editor_container.max_h_64()
+                            }
+                        })
+                        .child(div().pl_1().child(editor))
+                        .when(!self.full_height_expanded, |editor_container| {
+                            editor_container.child(gradient_overlay)
+                        }),
+                )
+            })
+            .when(!failed && self.preview_expanded, |card| {
+                card.child(
+                    h_flex()
+                        .id(("edit-tool-card-inner-hflex", self.editor_unique_id))
+                        .flex_none()
+                        .cursor_pointer()
+                        .h_5()
+                        .justify_center()
+                        .rounded_b_md()
+                        .border_t_1()
+                        .border_color(border_color)
+                        .bg(cx.theme().colors().editor_background)
+                        .hover(|style| style.bg(cx.theme().colors().element_hover.opacity(0.1)))
+                        .child(
+                            Icon::new(full_height_icon)
+                                .size(IconSize::Small)
+                                .color(Color::Muted),
+                        )
+                        .tooltip(Tooltip::text(full_height_tooltip_label))
+                        .on_click(cx.listener(move |this, _event, _window, _cx| {
+                            this.full_height_expanded = !this.full_height_expanded;
+                        })),
+                )
+            })
+    }
+}
+
+async fn build_buffer(
+    mut text: String,
+    path: Arc<Path>,
+    language_registry: &Arc<language::LanguageRegistry>,
+    cx: &mut AsyncApp,
+) -> Result<Entity<Buffer>> {
+    let line_ending = LineEnding::detect(&text);
+    LineEnding::normalize(&mut text);
+    let text = Rope::from(text);
+    let language = cx
+        .update(|_cx| language_registry.language_for_file_path(&path))?
+        .await
+        .ok();
+    let buffer = cx.new(|cx| {
+        let buffer = TextBuffer::new_normalized(
+            0,
+            cx.entity_id().as_non_zero_u64().into(),
+            line_ending,
+            text,
+        );
+        let mut buffer = Buffer::build(buffer, None, Capability::ReadWrite);
+        buffer.set_language(language, cx);
+        buffer
+    })?;
+    Ok(buffer)
+}
+
+async fn build_buffer_diff(
+    mut old_text: String,
+    buffer: &Entity<Buffer>,
+    language_registry: &Arc<LanguageRegistry>,
+    cx: &mut AsyncApp,
+) -> Result<Entity<BufferDiff>> {
+    LineEnding::normalize(&mut old_text);
+
+    let buffer = cx.update(|cx| buffer.read(cx).snapshot())?;
+
+    let base_buffer = cx
+        .update(|cx| {
+            Buffer::build_snapshot(
+                old_text.clone().into(),
+                buffer.language().cloned(),
+                Some(language_registry.clone()),
+                cx,
+            )
+        })?
+        .await;
+
+    let diff_snapshot = cx
+        .update(|cx| {
+            BufferDiffSnapshot::new_with_base_buffer(
+                buffer.text.clone(),
+                Some(old_text.into()),
+                base_buffer,
+                cx,
+            )
+        })?
+        .await;
+
+    cx.new(|cx| {
+        let mut diff = BufferDiff::new(&buffer.text, cx);
+        diff.set_snapshot(diff_snapshot, &buffer.text, cx);
+        diff
+    })
+}
+
+// todo!("add unit tests for failure modes of edit, like file not found, etc.")
 #[cfg(test)]
 mod tests {
     use super::*;

crates/assistant_tools/src/edit_file_tool/description.md

@@ -7,39 +7,4 @@ Before using this tool:
 2. Verify the directory path is correct (only applicable when creating new files):
    - Use the `list_directory` tool to verify the parent directory exists and is the correct location
 
-To make a file edit, provide the following:
-1. path: The full path to the file you wish to modify in the project. This path must include the root directory in the project.
-2. old_string: The text to replace (must be unique within the file, and must match the file contents exactly, including all whitespace and indentation)
-3. new_string: The edited text, which will replace the old_string in the file.
-
-The tool will replace ONE occurrence of old_string with new_string in the specified file.
-
-CRITICAL REQUIREMENTS FOR USING THIS TOOL:
-
-1. UNIQUENESS: The old_string MUST uniquely identify the specific instance you want to change. This means:
-   - Include AT LEAST 3-5 lines of context BEFORE the change point
-   - Include AT LEAST 3-5 lines of context AFTER the change point
-   - Include all whitespace, indentation, and surrounding code exactly as it appears in the file
-
-2. SINGLE INSTANCE: This tool can only change ONE instance at a time. If you need to change multiple instances:
-   - Make separate calls to this tool for each instance
-   - Each call must uniquely identify its specific instance using extensive context
-
-3. VERIFICATION: Before using this tool:
-   - Check how many instances of the target text exist in the file
-   - If multiple instances exist, gather enough context to uniquely identify each one
-   - Plan separate tool calls for each instance
-
-WARNING: If you do not follow these requirements:
-   - The tool will fail if old_string matches multiple locations
-   - The tool will fail if old_string doesn't match exactly (including whitespace)
-   - You may change the wrong instance if you don't include enough context
-
-When making edits:
-   - Ensure the edit results in idiomatic, correct code
-   - Do not leave the code in a broken state
-   - Always use fully-qualified project paths (starting with the name of one of the project's root directories)
-
-If you want to create a new file, use the `create_file` tool instead of this tool. Don't pass an empty `old_string`.
-
-Remember: when making multiple file edits in a row to the same file, you should prefer to send all edits in a single message with multiple calls to this tool, rather than multiple messages with a single call each.
+Group coherent edits together and include all of them in a single call to this tool. Add the full context needed for a small model to understand the edits.

crates/assistant_tools/src/fetch_tool.rs

@@ -6,7 +6,7 @@ use crate::schema::json_schema_for;
 use anyhow::{Context as _, Result, anyhow, bail};
 use assistant_tool::{ActionLog, Tool, ToolResult};
 use futures::AsyncReadExt as _;
-use gpui::{App, AppContext as _, Entity, Task};
+use gpui::{AnyWindowHandle, App, AppContext as _, Entity, Task};
 use html_to_markdown::{TagHandler, convert_html_to_markdown, markdown};
 use http_client::{AsyncBody, HttpClientWithUrl};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -145,6 +145,7 @@ impl Tool for FetchTool {
         _messages: &[LanguageModelRequestMessage],
         _project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<FetchToolInput>(input) {

crates/assistant_tools/src/find_path_tool.rs

@@ -1,7 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, AppContext, Entity, Task};
+use gpui::{AnyWindowHandle, App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -12,7 +12,7 @@ use util::paths::PathMatcher;
 use worktree::Snapshot;
 
 #[derive(Debug, Serialize, Deserialize, JsonSchema)]
-pub struct PathSearchToolInput {
+pub struct FindPathToolInput {
     /// The glob to match against every path in the project.
     ///
     /// <example>
@@ -34,11 +34,11 @@ pub struct PathSearchToolInput {
 
 const RESULTS_PER_PAGE: usize = 50;
 
-pub struct PathSearchTool;
+pub struct FindPathTool;
 
-impl Tool for PathSearchTool {
+impl Tool for FindPathTool {
     fn name(&self) -> String {
-        "path_search".into()
+        "find_path".into()
     }
 
     fn needs_confirmation(&self, _: &serde_json::Value, _: &App) -> bool {
@@ -46,7 +46,7 @@ impl Tool for PathSearchTool {
     }
 
     fn description(&self) -> String {
-        include_str!("./path_search_tool/description.md").into()
+        include_str!("./find_path_tool/description.md").into()
     }
 
     fn icon(&self) -> IconName {
@@ -54,11 +54,11 @@ impl Tool for PathSearchTool {
     }
 
     fn input_schema(&self, format: LanguageModelToolSchemaFormat) -> Result<serde_json::Value> {
-        json_schema_for::<PathSearchToolInput>(format)
+        json_schema_for::<FindPathToolInput>(format)
     }
 
     fn ui_text(&self, input: &serde_json::Value) -> String {
-        match serde_json::from_value::<PathSearchToolInput>(input.clone()) {
+        match serde_json::from_value::<FindPathToolInput>(input.clone()) {
             Ok(input) => format!("Find paths matching “`{}`”", input.glob),
             Err(_) => "Search paths".to_string(),
         }
@@ -70,9 +70,10 @@ impl Tool for PathSearchTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
-        let (offset, glob) = match serde_json::from_value::<PathSearchToolInput>(input) {
+        let (offset, glob) = match serde_json::from_value::<FindPathToolInput>(input) {
             Ok(input) => (input.offset, input.glob),
             Err(err) => return Task::ready(Err(anyhow!(err))).into(),
         };
@@ -143,7 +144,7 @@ mod test {
     use util::path;
 
     #[gpui::test]
-    async fn test_path_search_tool(cx: &mut TestAppContext) {
+    async fn test_find_path_tool(cx: &mut TestAppContext) {
         init_test(cx);
 
         let fs = FakeFs::new(cx.executor());

crates/assistant_tools/src/find_path_tool/description.md

@@ -1,4 +1,4 @@
-Fast file pattern matching tool that works with any codebase size
+Fast file path pattern matching tool that works with any codebase size
 
 - Supports glob patterns like "**/*.js" or "src/**/*.ts"
 - Returns matching file paths sorted alphabetically

crates/assistant_tools/src/fixtures/delete_run_git_blame/after.rs

@@ -0,0 +1,328 @@
+use crate::commit::get_messages;
+use crate::{GitRemote, Oid};
+use anyhow::{Context as _, Result, anyhow};
+use collections::{HashMap, HashSet};
+use futures::AsyncWriteExt;
+use gpui::SharedString;
+use serde::{Deserialize, Serialize};
+use std::process::Stdio;
+use std::{ops::Range, path::Path};
+use text::Rope;
+use time::OffsetDateTime;
+use time::UtcOffset;
+use time::macros::format_description;
+
+pub use git2 as libgit;
+
+#[derive(Debug, Clone, Default)]
+pub struct Blame {
+    pub entries: Vec<BlameEntry>,
+    pub messages: HashMap<Oid, String>,
+    pub remote_url: Option<String>,
+}
+
+#[derive(Clone, Debug, Default)]
+pub struct ParsedCommitMessage {
+    pub message: SharedString,
+    pub permalink: Option<url::Url>,
+    pub pull_request: Option<crate::hosting_provider::PullRequest>,
+    pub remote: Option<GitRemote>,
+}
+
+impl Blame {
+    pub async fn for_path(
+        git_binary: &Path,
+        working_directory: &Path,
+        path: &Path,
+        content: &Rope,
+        remote_url: Option<String>,
+    ) -> Result<Self> {
+        let output = run_git_blame(git_binary, working_directory, path, content).await?;
+        let mut entries = parse_git_blame(&output)?;
+        entries.sort_unstable_by(|a, b| a.range.start.cmp(&b.range.start));
+
+        let mut unique_shas = HashSet::default();
+
+        for entry in entries.iter_mut() {
+            unique_shas.insert(entry.sha);
+        }
+
+        let shas = unique_shas.into_iter().collect::<Vec<_>>();
+        let messages = get_messages(working_directory, &shas)
+            .await
+            .context("failed to get commit messages")?;
+
+        Ok(Self {
+            entries,
+            messages,
+            remote_url,
+        })
+    }
+}
+
+const GIT_BLAME_NO_COMMIT_ERROR: &str = "fatal: no such ref: HEAD";
+const GIT_BLAME_NO_PATH: &str = "fatal: no such path";
+
+#[derive(Serialize, Deserialize, Default, Debug, Clone, PartialEq, Eq)]
+pub struct BlameEntry {
+    pub sha: Oid,
+
+    pub range: Range<u32>,
+
+    pub original_line_number: u32,
+
+    pub author: Option<String>,
+    pub author_mail: Option<String>,
+    pub author_time: Option<i64>,
+    pub author_tz: Option<String>,
+
+    pub committer_name: Option<String>,
+    pub committer_email: Option<String>,
+    pub committer_time: Option<i64>,
+    pub committer_tz: Option<String>,
+
+    pub summary: Option<String>,
+
+    pub previous: Option<String>,
+    pub filename: String,
+}
+
+impl BlameEntry {
+    // Returns a BlameEntry by parsing the first line of a `git blame --incremental`
+    // entry. The line MUST have this format:
+    //
+    //     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+    fn new_from_blame_line(line: &str) -> Result<BlameEntry> {
+        let mut parts = line.split_whitespace();
+
+        let sha = parts
+            .next()
+            .and_then(|line| line.parse::<Oid>().ok())
+            .ok_or_else(|| anyhow!("failed to parse sha"))?;
+
+        let original_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse original line number"))?;
+        let final_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let line_count = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let start_line = final_line_number.saturating_sub(1);
+        let end_line = start_line + line_count;
+        let range = start_line..end_line;
+
+        Ok(Self {
+            sha,
+            range,
+            original_line_number,
+            ..Default::default()
+        })
+    }
+
+    pub fn author_offset_date_time(&self) -> Result<time::OffsetDateTime> {
+        if let (Some(author_time), Some(author_tz)) = (self.author_time, &self.author_tz) {
+            let format = format_description!("[offset_hour][offset_minute]");
+            let offset = UtcOffset::parse(author_tz, &format)?;
+            let date_time_utc = OffsetDateTime::from_unix_timestamp(author_time)?;
+
+            Ok(date_time_utc.to_offset(offset))
+        } else {
+            // Directly return current time in UTC if there's no committer time or timezone
+            Ok(time::OffsetDateTime::now_utc())
+        }
+    }
+}
+
+// parse_git_blame parses the output of `git blame --incremental`, which returns
+// all the blame-entries for a given path incrementally, as it finds them.
+//
+// Each entry *always* starts with:
+//
+//     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+//
+// Each entry *always* ends with:
+//
+//     filename <whitespace-quoted-filename-goes-here>
+//
+// Line numbers are 1-indexed.
+//
+// A `git blame --incremental` entry looks like this:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 2 2 1
+//    author Joe Schmoe
+//    author-mail <joe.schmoe@example.com>
+//    author-time 1709741400
+//    author-tz +0100
+//    committer Joe Schmoe
+//    committer-mail <joe.schmoe@example.com>
+//    committer-time 1709741400
+//    committer-tz +0100
+//    summary Joe's cool commit
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// If the entry has the same SHA as an entry that was already printed then no
+// signature information is printed:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 3 4 1
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// More about `--incremental` output: https://mirrors.edge.kernel.org/pub/software/scm/git/docs/git-blame.html
+fn parse_git_blame(output: &str) -> Result<Vec<BlameEntry>> {
+    let mut entries: Vec<BlameEntry> = Vec::new();
+    let mut index: HashMap<Oid, usize> = HashMap::default();
+
+    let mut current_entry: Option<BlameEntry> = None;
+
+    for line in output.lines() {
+        let mut done = false;
+
+        match &mut current_entry {
+            None => {
+                let mut new_entry = BlameEntry::new_from_blame_line(line)?;
+
+                if let Some(existing_entry) = index
+                    .get(&new_entry.sha)
+                    .and_then(|slot| entries.get(*slot))
+                {
+                    new_entry.author.clone_from(&existing_entry.author);
+                    new_entry
+                        .author_mail
+                        .clone_from(&existing_entry.author_mail);
+                    new_entry.author_time = existing_entry.author_time;
+                    new_entry.author_tz.clone_from(&existing_entry.author_tz);
+                    new_entry
+                        .committer_name
+                        .clone_from(&existing_entry.committer_name);
+                    new_entry
+                        .committer_email
+                        .clone_from(&existing_entry.committer_email);
+                    new_entry.committer_time = existing_entry.committer_time;
+                    new_entry
+                        .committer_tz
+                        .clone_from(&existing_entry.committer_tz);
+                    new_entry.summary.clone_from(&existing_entry.summary);
+                }
+
+                current_entry.replace(new_entry);
+            }
+            Some(entry) => {
+                let Some((key, value)) = line.split_once(' ') else {
+                    continue;
+                };
+                let is_committed = !entry.sha.is_zero();
+                match key {
+                    "filename" => {
+                        entry.filename = value.into();
+                        done = true;
+                    }
+                    "previous" => entry.previous = Some(value.into()),
+
+                    "summary" if is_committed => entry.summary = Some(value.into()),
+                    "author" if is_committed => entry.author = Some(value.into()),
+                    "author-mail" if is_committed => entry.author_mail = Some(value.into()),
+                    "author-time" if is_committed => {
+                        entry.author_time = Some(value.parse::<i64>()?)
+                    }
+                    "author-tz" if is_committed => entry.author_tz = Some(value.into()),
+
+                    "committer" if is_committed => entry.committer_name = Some(value.into()),
+                    "committer-mail" if is_committed => entry.committer_email = Some(value.into()),
+                    "committer-time" if is_committed => {
+                        entry.committer_time = Some(value.parse::<i64>()?)
+                    }
+                    "committer-tz" if is_committed => entry.committer_tz = Some(value.into()),
+                    _ => {}
+                }
+            }
+        };
+
+        if done {
+            if let Some(entry) = current_entry.take() {
+                index.insert(entry.sha, entries.len());
+
+                // We only want annotations that have a commit.
+                if !entry.sha.is_zero() {
+                    entries.push(entry);
+                }
+            }
+        }
+    }
+
+    Ok(entries)
+}
+
+#[cfg(test)]
+mod tests {
+    use std::path::PathBuf;
+
+    use super::BlameEntry;
+    use super::parse_git_blame;
+
+    fn read_test_data(filename: &str) -> String {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push(filename);
+
+        std::fs::read_to_string(&path)
+            .unwrap_or_else(|_| panic!("Could not read test data at {:?}. Is it generated?", path))
+    }
+
+    fn assert_eq_golden(entries: &Vec<BlameEntry>, golden_filename: &str) {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push("golden");
+        path.push(format!("{}.json", golden_filename));
+
+        let mut have_json =
+            serde_json::to_string_pretty(&entries).expect("could not serialize entries to JSON");
+        // We always want to save with a trailing newline.
+        have_json.push('\n');
+
+        let update = std::env::var("UPDATE_GOLDEN")
+            .map(|val| val.eq_ignore_ascii_case("true"))
+            .unwrap_or(false);
+
+        if update {
+            std::fs::create_dir_all(path.parent().unwrap())
+                .expect("could not create golden test data directory");
+            std::fs::write(&path, have_json).expect("could not write out golden data");
+        } else {
+            let want_json =
+                std::fs::read_to_string(&path).unwrap_or_else(|_| {
+                    panic!("could not read golden test data file at {:?}. Did you run the test with UPDATE_GOLDEN=true before?", path);
+                }).replace("\r\n", "\n");
+
+            pretty_assertions::assert_eq!(have_json, want_json, "wrong blame entries");
+        }
+    }
+
+    #[test]
+    fn test_parse_git_blame_not_committed() {
+        let output = read_test_data("blame_incremental_not_committed");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_not_committed");
+    }
+
+    #[test]
+    fn test_parse_git_blame_simple() {
+        let output = read_test_data("blame_incremental_simple");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_simple");
+    }
+
+    #[test]
+    fn test_parse_git_blame_complex() {
+        let output = read_test_data("blame_incremental_complex");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_complex");
+    }
+}

crates/assistant_tools/src/fixtures/delete_run_git_blame/before.rs

@@ -0,0 +1,374 @@
+use crate::commit::get_messages;
+use crate::{GitRemote, Oid};
+use anyhow::{Context as _, Result, anyhow};
+use collections::{HashMap, HashSet};
+use futures::AsyncWriteExt;
+use gpui::SharedString;
+use serde::{Deserialize, Serialize};
+use std::process::Stdio;
+use std::{ops::Range, path::Path};
+use text::Rope;
+use time::OffsetDateTime;
+use time::UtcOffset;
+use time::macros::format_description;
+
+pub use git2 as libgit;
+
+#[derive(Debug, Clone, Default)]
+pub struct Blame {
+    pub entries: Vec<BlameEntry>,
+    pub messages: HashMap<Oid, String>,
+    pub remote_url: Option<String>,
+}
+
+#[derive(Clone, Debug, Default)]
+pub struct ParsedCommitMessage {
+    pub message: SharedString,
+    pub permalink: Option<url::Url>,
+    pub pull_request: Option<crate::hosting_provider::PullRequest>,
+    pub remote: Option<GitRemote>,
+}
+
+impl Blame {
+    pub async fn for_path(
+        git_binary: &Path,
+        working_directory: &Path,
+        path: &Path,
+        content: &Rope,
+        remote_url: Option<String>,
+    ) -> Result<Self> {
+        let output = run_git_blame(git_binary, working_directory, path, content).await?;
+        let mut entries = parse_git_blame(&output)?;
+        entries.sort_unstable_by(|a, b| a.range.start.cmp(&b.range.start));
+
+        let mut unique_shas = HashSet::default();
+
+        for entry in entries.iter_mut() {
+            unique_shas.insert(entry.sha);
+        }
+
+        let shas = unique_shas.into_iter().collect::<Vec<_>>();
+        let messages = get_messages(working_directory, &shas)
+            .await
+            .context("failed to get commit messages")?;
+
+        Ok(Self {
+            entries,
+            messages,
+            remote_url,
+        })
+    }
+}
+
+const GIT_BLAME_NO_COMMIT_ERROR: &str = "fatal: no such ref: HEAD";
+const GIT_BLAME_NO_PATH: &str = "fatal: no such path";
+
+async fn run_git_blame(
+    git_binary: &Path,
+    working_directory: &Path,
+    path: &Path,
+    contents: &Rope,
+) -> Result<String> {
+    let mut child = util::command::new_smol_command(git_binary)
+        .current_dir(working_directory)
+        .arg("blame")
+        .arg("--incremental")
+        .arg("--contents")
+        .arg("-")
+        .arg(path.as_os_str())
+        .stdin(Stdio::piped())
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped())
+        .spawn()
+        .map_err(|e| anyhow!("Failed to start git blame process: {}", e))?;
+
+    let stdin = child
+        .stdin
+        .as_mut()
+        .context("failed to get pipe to stdin of git blame command")?;
+
+    for chunk in contents.chunks() {
+        stdin.write_all(chunk.as_bytes()).await?;
+    }
+    stdin.flush().await?;
+
+    let output = child
+        .output()
+        .await
+        .map_err(|e| anyhow!("Failed to read git blame output: {}", e))?;
+
+    if !output.status.success() {
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        let trimmed = stderr.trim();
+        if trimmed == GIT_BLAME_NO_COMMIT_ERROR || trimmed.contains(GIT_BLAME_NO_PATH) {
+            return Ok(String::new());
+        }
+        return Err(anyhow!("git blame process failed: {}", stderr));
+    }
+
+    Ok(String::from_utf8(output.stdout)?)
+}
+
+#[derive(Serialize, Deserialize, Default, Debug, Clone, PartialEq, Eq)]
+pub struct BlameEntry {
+    pub sha: Oid,
+
+    pub range: Range<u32>,
+
+    pub original_line_number: u32,
+
+    pub author: Option<String>,
+    pub author_mail: Option<String>,
+    pub author_time: Option<i64>,
+    pub author_tz: Option<String>,
+
+    pub committer_name: Option<String>,
+    pub committer_email: Option<String>,
+    pub committer_time: Option<i64>,
+    pub committer_tz: Option<String>,
+
+    pub summary: Option<String>,
+
+    pub previous: Option<String>,
+    pub filename: String,
+}
+
+impl BlameEntry {
+    // Returns a BlameEntry by parsing the first line of a `git blame --incremental`
+    // entry. The line MUST have this format:
+    //
+    //     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+    fn new_from_blame_line(line: &str) -> Result<BlameEntry> {
+        let mut parts = line.split_whitespace();
+
+        let sha = parts
+            .next()
+            .and_then(|line| line.parse::<Oid>().ok())
+            .ok_or_else(|| anyhow!("failed to parse sha"))?;
+
+        let original_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse original line number"))?;
+        let final_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let line_count = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let start_line = final_line_number.saturating_sub(1);
+        let end_line = start_line + line_count;
+        let range = start_line..end_line;
+
+        Ok(Self {
+            sha,
+            range,
+            original_line_number,
+            ..Default::default()
+        })
+    }
+
+    pub fn author_offset_date_time(&self) -> Result<time::OffsetDateTime> {
+        if let (Some(author_time), Some(author_tz)) = (self.author_time, &self.author_tz) {
+            let format = format_description!("[offset_hour][offset_minute]");
+            let offset = UtcOffset::parse(author_tz, &format)?;
+            let date_time_utc = OffsetDateTime::from_unix_timestamp(author_time)?;
+
+            Ok(date_time_utc.to_offset(offset))
+        } else {
+            // Directly return current time in UTC if there's no committer time or timezone
+            Ok(time::OffsetDateTime::now_utc())
+        }
+    }
+}
+
+// parse_git_blame parses the output of `git blame --incremental`, which returns
+// all the blame-entries for a given path incrementally, as it finds them.
+//
+// Each entry *always* starts with:
+//
+//     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+//
+// Each entry *always* ends with:
+//
+//     filename <whitespace-quoted-filename-goes-here>
+//
+// Line numbers are 1-indexed.
+//
+// A `git blame --incremental` entry looks like this:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 2 2 1
+//    author Joe Schmoe
+//    author-mail <joe.schmoe@example.com>
+//    author-time 1709741400
+//    author-tz +0100
+//    committer Joe Schmoe
+//    committer-mail <joe.schmoe@example.com>
+//    committer-time 1709741400
+//    committer-tz +0100
+//    summary Joe's cool commit
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// If the entry has the same SHA as an entry that was already printed then no
+// signature information is printed:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 3 4 1
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// More about `--incremental` output: https://mirrors.edge.kernel.org/pub/software/scm/git/docs/git-blame.html
+fn parse_git_blame(output: &str) -> Result<Vec<BlameEntry>> {
+    let mut entries: Vec<BlameEntry> = Vec::new();
+    let mut index: HashMap<Oid, usize> = HashMap::default();
+
+    let mut current_entry: Option<BlameEntry> = None;
+
+    for line in output.lines() {
+        let mut done = false;
+
+        match &mut current_entry {
+            None => {
+                let mut new_entry = BlameEntry::new_from_blame_line(line)?;
+
+                if let Some(existing_entry) = index
+                    .get(&new_entry.sha)
+                    .and_then(|slot| entries.get(*slot))
+                {
+                    new_entry.author.clone_from(&existing_entry.author);
+                    new_entry
+                        .author_mail
+                        .clone_from(&existing_entry.author_mail);
+                    new_entry.author_time = existing_entry.author_time;
+                    new_entry.author_tz.clone_from(&existing_entry.author_tz);
+                    new_entry
+                        .committer_name
+                        .clone_from(&existing_entry.committer_name);
+                    new_entry
+                        .committer_email
+                        .clone_from(&existing_entry.committer_email);
+                    new_entry.committer_time = existing_entry.committer_time;
+                    new_entry
+                        .committer_tz
+                        .clone_from(&existing_entry.committer_tz);
+                    new_entry.summary.clone_from(&existing_entry.summary);
+                }
+
+                current_entry.replace(new_entry);
+            }
+            Some(entry) => {
+                let Some((key, value)) = line.split_once(' ') else {
+                    continue;
+                };
+                let is_committed = !entry.sha.is_zero();
+                match key {
+                    "filename" => {
+                        entry.filename = value.into();
+                        done = true;
+                    }
+                    "previous" => entry.previous = Some(value.into()),
+
+                    "summary" if is_committed => entry.summary = Some(value.into()),
+                    "author" if is_committed => entry.author = Some(value.into()),
+                    "author-mail" if is_committed => entry.author_mail = Some(value.into()),
+                    "author-time" if is_committed => {
+                        entry.author_time = Some(value.parse::<i64>()?)
+                    }
+                    "author-tz" if is_committed => entry.author_tz = Some(value.into()),
+
+                    "committer" if is_committed => entry.committer_name = Some(value.into()),
+                    "committer-mail" if is_committed => entry.committer_email = Some(value.into()),
+                    "committer-time" if is_committed => {
+                        entry.committer_time = Some(value.parse::<i64>()?)
+                    }
+                    "committer-tz" if is_committed => entry.committer_tz = Some(value.into()),
+                    _ => {}
+                }
+            }
+        };
+
+        if done {
+            if let Some(entry) = current_entry.take() {
+                index.insert(entry.sha, entries.len());
+
+                // We only want annotations that have a commit.
+                if !entry.sha.is_zero() {
+                    entries.push(entry);
+                }
+            }
+        }
+    }
+
+    Ok(entries)
+}
+
+#[cfg(test)]
+mod tests {
+    use std::path::PathBuf;
+
+    use super::BlameEntry;
+    use super::parse_git_blame;
+
+    fn read_test_data(filename: &str) -> String {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push(filename);
+
+        std::fs::read_to_string(&path)
+            .unwrap_or_else(|_| panic!("Could not read test data at {:?}. Is it generated?", path))
+    }
+
+    fn assert_eq_golden(entries: &Vec<BlameEntry>, golden_filename: &str) {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push("golden");
+        path.push(format!("{}.json", golden_filename));
+
+        let mut have_json =
+            serde_json::to_string_pretty(&entries).expect("could not serialize entries to JSON");
+        // We always want to save with a trailing newline.
+        have_json.push('\n');
+
+        let update = std::env::var("UPDATE_GOLDEN")
+            .map(|val| val.eq_ignore_ascii_case("true"))
+            .unwrap_or(false);
+
+        if update {
+            std::fs::create_dir_all(path.parent().unwrap())
+                .expect("could not create golden test data directory");
+            std::fs::write(&path, have_json).expect("could not write out golden data");
+        } else {
+            let want_json =
+                std::fs::read_to_string(&path).unwrap_or_else(|_| {
+                    panic!("could not read golden test data file at {:?}. Did you run the test with UPDATE_GOLDEN=true before?", path);
+                }).replace("\r\n", "\n");
+
+            pretty_assertions::assert_eq!(have_json, want_json, "wrong blame entries");
+        }
+    }
+
+    #[test]
+    fn test_parse_git_blame_not_committed() {
+        let output = read_test_data("blame_incremental_not_committed");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_not_committed");
+    }
+
+    #[test]
+    fn test_parse_git_blame_simple() {
+        let output = read_test_data("blame_incremental_simple");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_simple");
+    }
+
+    #[test]
+    fn test_parse_git_blame_complex() {
+        let output = read_test_data("blame_incremental_complex");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_complex");
+    }
+}

crates/assistant_tools/src/fixtures/extract_handle_command_output/after.rs

@@ -0,0 +1,378 @@
+use crate::commit::get_messages;
+use crate::{GitRemote, Oid};
+use anyhow::{Context as _, Result, anyhow};
+use collections::{HashMap, HashSet};
+use futures::AsyncWriteExt;
+use gpui::SharedString;
+use serde::{Deserialize, Serialize};
+use std::process::Stdio;
+use std::{ops::Range, path::Path};
+use text::Rope;
+use time::OffsetDateTime;
+use time::UtcOffset;
+use time::macros::format_description;
+
+pub use git2 as libgit;
+
+#[derive(Debug, Clone, Default)]
+pub struct Blame {
+    pub entries: Vec<BlameEntry>,
+    pub messages: HashMap<Oid, String>,
+    pub remote_url: Option<String>,
+}
+
+#[derive(Clone, Debug, Default)]
+pub struct ParsedCommitMessage {
+    pub message: SharedString,
+    pub permalink: Option<url::Url>,
+    pub pull_request: Option<crate::hosting_provider::PullRequest>,
+    pub remote: Option<GitRemote>,
+}
+
+impl Blame {
+    pub async fn for_path(
+        git_binary: &Path,
+        working_directory: &Path,
+        path: &Path,
+        content: &Rope,
+        remote_url: Option<String>,
+    ) -> Result<Self> {
+        let output = run_git_blame(git_binary, working_directory, path, content).await?;
+        let mut entries = parse_git_blame(&output)?;
+        entries.sort_unstable_by(|a, b| a.range.start.cmp(&b.range.start));
+
+        let mut unique_shas = HashSet::default();
+
+        for entry in entries.iter_mut() {
+            unique_shas.insert(entry.sha);
+        }
+
+        let shas = unique_shas.into_iter().collect::<Vec<_>>();
+        let messages = get_messages(working_directory, &shas)
+            .await
+            .context("failed to get commit messages")?;
+
+        Ok(Self {
+            entries,
+            messages,
+            remote_url,
+        })
+    }
+}
+
+const GIT_BLAME_NO_COMMIT_ERROR: &str = "fatal: no such ref: HEAD";
+const GIT_BLAME_NO_PATH: &str = "fatal: no such path";
+
+async fn run_git_blame(
+    git_binary: &Path,
+    working_directory: &Path,
+    path: &Path,
+    contents: &Rope,
+) -> Result<String> {
+    let mut child = util::command::new_smol_command(git_binary)
+        .current_dir(working_directory)
+        .arg("blame")
+        .arg("--incremental")
+        .arg("--contents")
+        .arg("-")
+        .arg(path.as_os_str())
+        .stdin(Stdio::piped())
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped())
+        .spawn()
+        .map_err(|e| anyhow!("Failed to start git blame process: {}", e))?;
+
+    let stdin = child
+        .stdin
+        .as_mut()
+        .context("failed to get pipe to stdin of git blame command")?;
+
+    for chunk in contents.chunks() {
+        stdin.write_all(chunk.as_bytes()).await?;
+    }
+    stdin.flush().await?;
+
+    let output = child
+        .output()
+        .await
+        .map_err(|e| anyhow!("Failed to read git blame output: {}", e))?;
+
+    handle_command_output(output)
+}
+
+fn handle_command_output(output: std::process::Output) -> Result<String> {
+    if !output.status.success() {
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        let trimmed = stderr.trim();
+        if trimmed == GIT_BLAME_NO_COMMIT_ERROR || trimmed.contains(GIT_BLAME_NO_PATH) {
+            return Ok(String::new());
+        }
+        return Err(anyhow!("git blame process failed: {}", stderr));
+    }
+
+    Ok(String::from_utf8(output.stdout)?)
+}
+
+#[derive(Serialize, Deserialize, Default, Debug, Clone, PartialEq, Eq)]
+pub struct BlameEntry {
+    pub sha: Oid,
+
+    pub range: Range<u32>,
+
+    pub original_line_number: u32,
+
+    pub author: Option<String>,
+    pub author_mail: Option<String>,
+    pub author_time: Option<i64>,
+    pub author_tz: Option<String>,
+
+    pub committer_name: Option<String>,
+    pub committer_email: Option<String>,
+    pub committer_time: Option<i64>,
+    pub committer_tz: Option<String>,
+
+    pub summary: Option<String>,
+
+    pub previous: Option<String>,
+    pub filename: String,
+}
+
+impl BlameEntry {
+    // Returns a BlameEntry by parsing the first line of a `git blame --incremental`
+    // entry. The line MUST have this format:
+    //
+    //     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+    fn new_from_blame_line(line: &str) -> Result<BlameEntry> {
+        let mut parts = line.split_whitespace();
+
+        let sha = parts
+            .next()
+            .and_then(|line| line.parse::<Oid>().ok())
+            .ok_or_else(|| anyhow!("failed to parse sha"))?;
+
+        let original_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse original line number"))?;
+        let final_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let line_count = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let start_line = final_line_number.saturating_sub(1);
+        let end_line = start_line + line_count;
+        let range = start_line..end_line;
+
+        Ok(Self {
+            sha,
+            range,
+            original_line_number,
+            ..Default::default()
+        })
+    }
+
+    pub fn author_offset_date_time(&self) -> Result<time::OffsetDateTime> {
+        if let (Some(author_time), Some(author_tz)) = (self.author_time, &self.author_tz) {
+            let format = format_description!("[offset_hour][offset_minute]");
+            let offset = UtcOffset::parse(author_tz, &format)?;
+            let date_time_utc = OffsetDateTime::from_unix_timestamp(author_time)?;
+
+            Ok(date_time_utc.to_offset(offset))
+        } else {
+            // Directly return current time in UTC if there's no committer time or timezone
+            Ok(time::OffsetDateTime::now_utc())
+        }
+    }
+}
+
+// parse_git_blame parses the output of `git blame --incremental`, which returns
+// all the blame-entries for a given path incrementally, as it finds them.
+//
+// Each entry *always* starts with:
+//
+//     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+//
+// Each entry *always* ends with:
+//
+//     filename <whitespace-quoted-filename-goes-here>
+//
+// Line numbers are 1-indexed.
+//
+// A `git blame --incremental` entry looks like this:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 2 2 1
+//    author Joe Schmoe
+//    author-mail <joe.schmoe@example.com>
+//    author-time 1709741400
+//    author-tz +0100
+//    committer Joe Schmoe
+//    committer-mail <joe.schmoe@example.com>
+//    committer-time 1709741400
+//    committer-tz +0100
+//    summary Joe's cool commit
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// If the entry has the same SHA as an entry that was already printed then no
+// signature information is printed:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 3 4 1
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// More about `--incremental` output: https://mirrors.edge.kernel.org/pub/software/scm/git/docs/git-blame.html
+fn parse_git_blame(output: &str) -> Result<Vec<BlameEntry>> {
+    let mut entries: Vec<BlameEntry> = Vec::new();
+    let mut index: HashMap<Oid, usize> = HashMap::default();
+
+    let mut current_entry: Option<BlameEntry> = None;
+
+    for line in output.lines() {
+        let mut done = false;
+
+        match &mut current_entry {
+            None => {
+                let mut new_entry = BlameEntry::new_from_blame_line(line)?;
+
+                if let Some(existing_entry) = index
+                    .get(&new_entry.sha)
+                    .and_then(|slot| entries.get(*slot))
+                {
+                    new_entry.author.clone_from(&existing_entry.author);
+                    new_entry
+                        .author_mail
+                        .clone_from(&existing_entry.author_mail);
+                    new_entry.author_time = existing_entry.author_time;
+                    new_entry.author_tz.clone_from(&existing_entry.author_tz);
+                    new_entry
+                        .committer_name
+                        .clone_from(&existing_entry.committer_name);
+                    new_entry
+                        .committer_email
+                        .clone_from(&existing_entry.committer_email);
+                    new_entry.committer_time = existing_entry.committer_time;
+                    new_entry
+                        .committer_tz
+                        .clone_from(&existing_entry.committer_tz);
+                    new_entry.summary.clone_from(&existing_entry.summary);
+                }
+
+                current_entry.replace(new_entry);
+            }
+            Some(entry) => {
+                let Some((key, value)) = line.split_once(' ') else {
+                    continue;
+                };
+                let is_committed = !entry.sha.is_zero();
+                match key {
+                    "filename" => {
+                        entry.filename = value.into();
+                        done = true;
+                    }
+                    "previous" => entry.previous = Some(value.into()),
+
+                    "summary" if is_committed => entry.summary = Some(value.into()),
+                    "author" if is_committed => entry.author = Some(value.into()),
+                    "author-mail" if is_committed => entry.author_mail = Some(value.into()),
+                    "author-time" if is_committed => {
+                        entry.author_time = Some(value.parse::<i64>()?)
+                    }
+                    "author-tz" if is_committed => entry.author_tz = Some(value.into()),
+
+                    "committer" if is_committed => entry.committer_name = Some(value.into()),
+                    "committer-mail" if is_committed => entry.committer_email = Some(value.into()),
+                    "committer-time" if is_committed => {
+                        entry.committer_time = Some(value.parse::<i64>()?)
+                    }
+                    "committer-tz" if is_committed => entry.committer_tz = Some(value.into()),
+                    _ => {}
+                }
+            }
+        };
+
+        if done {
+            if let Some(entry) = current_entry.take() {
+                index.insert(entry.sha, entries.len());
+
+                // We only want annotations that have a commit.
+                if !entry.sha.is_zero() {
+                    entries.push(entry);
+                }
+            }
+        }
+    }
+
+    Ok(entries)
+}
+
+#[cfg(test)]
+mod tests {
+    use std::path::PathBuf;
+
+    use super::BlameEntry;
+    use super::parse_git_blame;
+
+    fn read_test_data(filename: &str) -> String {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push(filename);
+
+        std::fs::read_to_string(&path)
+            .unwrap_or_else(|_| panic!("Could not read test data at {:?}. Is it generated?", path))
+    }
+
+    fn assert_eq_golden(entries: &Vec<BlameEntry>, golden_filename: &str) {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push("golden");
+        path.push(format!("{}.json", golden_filename));
+
+        let mut have_json =
+            serde_json::to_string_pretty(&entries).expect("could not serialize entries to JSON");
+        // We always want to save with a trailing newline.
+        have_json.push('\n');
+
+        let update = std::env::var("UPDATE_GOLDEN")
+            .map(|val| val.eq_ignore_ascii_case("true"))
+            .unwrap_or(false);
+
+        if update {
+            std::fs::create_dir_all(path.parent().unwrap())
+                .expect("could not create golden test data directory");
+            std::fs::write(&path, have_json).expect("could not write out golden data");
+        } else {
+            let want_json =
+                std::fs::read_to_string(&path).unwrap_or_else(|_| {
+                    panic!("could not read golden test data file at {:?}. Did you run the test with UPDATE_GOLDEN=true before?", path);
+                }).replace("\r\n", "\n");
+
+            pretty_assertions::assert_eq!(have_json, want_json, "wrong blame entries");
+        }
+    }
+
+    #[test]
+    fn test_parse_git_blame_not_committed() {
+        let output = read_test_data("blame_incremental_not_committed");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_not_committed");
+    }
+
+    #[test]
+    fn test_parse_git_blame_simple() {
+        let output = read_test_data("blame_incremental_simple");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_simple");
+    }
+
+    #[test]
+    fn test_parse_git_blame_complex() {
+        let output = read_test_data("blame_incremental_complex");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_complex");
+    }
+}

crates/assistant_tools/src/fixtures/extract_handle_command_output/before.rs

@@ -0,0 +1,374 @@
+use crate::commit::get_messages;
+use crate::{GitRemote, Oid};
+use anyhow::{Context as _, Result, anyhow};
+use collections::{HashMap, HashSet};
+use futures::AsyncWriteExt;
+use gpui::SharedString;
+use serde::{Deserialize, Serialize};
+use std::process::Stdio;
+use std::{ops::Range, path::Path};
+use text::Rope;
+use time::OffsetDateTime;
+use time::UtcOffset;
+use time::macros::format_description;
+
+pub use git2 as libgit;
+
+#[derive(Debug, Clone, Default)]
+pub struct Blame {
+    pub entries: Vec<BlameEntry>,
+    pub messages: HashMap<Oid, String>,
+    pub remote_url: Option<String>,
+}
+
+#[derive(Clone, Debug, Default)]
+pub struct ParsedCommitMessage {
+    pub message: SharedString,
+    pub permalink: Option<url::Url>,
+    pub pull_request: Option<crate::hosting_provider::PullRequest>,
+    pub remote: Option<GitRemote>,
+}
+
+impl Blame {
+    pub async fn for_path(
+        git_binary: &Path,
+        working_directory: &Path,
+        path: &Path,
+        content: &Rope,
+        remote_url: Option<String>,
+    ) -> Result<Self> {
+        let output = run_git_blame(git_binary, working_directory, path, content).await?;
+        let mut entries = parse_git_blame(&output)?;
+        entries.sort_unstable_by(|a, b| a.range.start.cmp(&b.range.start));
+
+        let mut unique_shas = HashSet::default();
+
+        for entry in entries.iter_mut() {
+            unique_shas.insert(entry.sha);
+        }
+
+        let shas = unique_shas.into_iter().collect::<Vec<_>>();
+        let messages = get_messages(working_directory, &shas)
+            .await
+            .context("failed to get commit messages")?;
+
+        Ok(Self {
+            entries,
+            messages,
+            remote_url,
+        })
+    }
+}
+
+const GIT_BLAME_NO_COMMIT_ERROR: &str = "fatal: no such ref: HEAD";
+const GIT_BLAME_NO_PATH: &str = "fatal: no such path";
+
+async fn run_git_blame(
+    git_binary: &Path,
+    working_directory: &Path,
+    path: &Path,
+    contents: &Rope,
+) -> Result<String> {
+    let mut child = util::command::new_smol_command(git_binary)
+        .current_dir(working_directory)
+        .arg("blame")
+        .arg("--incremental")
+        .arg("--contents")
+        .arg("-")
+        .arg(path.as_os_str())
+        .stdin(Stdio::piped())
+        .stdout(Stdio::piped())
+        .stderr(Stdio::piped())
+        .spawn()
+        .map_err(|e| anyhow!("Failed to start git blame process: {}", e))?;
+
+    let stdin = child
+        .stdin
+        .as_mut()
+        .context("failed to get pipe to stdin of git blame command")?;
+
+    for chunk in contents.chunks() {
+        stdin.write_all(chunk.as_bytes()).await?;
+    }
+    stdin.flush().await?;
+
+    let output = child
+        .output()
+        .await
+        .map_err(|e| anyhow!("Failed to read git blame output: {}", e))?;
+
+    if !output.status.success() {
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        let trimmed = stderr.trim();
+        if trimmed == GIT_BLAME_NO_COMMIT_ERROR || trimmed.contains(GIT_BLAME_NO_PATH) {
+            return Ok(String::new());
+        }
+        return Err(anyhow!("git blame process failed: {}", stderr));
+    }
+
+    Ok(String::from_utf8(output.stdout)?)
+}
+
+#[derive(Serialize, Deserialize, Default, Debug, Clone, PartialEq, Eq)]
+pub struct BlameEntry {
+    pub sha: Oid,
+
+    pub range: Range<u32>,
+
+    pub original_line_number: u32,
+
+    pub author: Option<String>,
+    pub author_mail: Option<String>,
+    pub author_time: Option<i64>,
+    pub author_tz: Option<String>,
+
+    pub committer_name: Option<String>,
+    pub committer_email: Option<String>,
+    pub committer_time: Option<i64>,
+    pub committer_tz: Option<String>,
+
+    pub summary: Option<String>,
+
+    pub previous: Option<String>,
+    pub filename: String,
+}
+
+impl BlameEntry {
+    // Returns a BlameEntry by parsing the first line of a `git blame --incremental`
+    // entry. The line MUST have this format:
+    //
+    //     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+    fn new_from_blame_line(line: &str) -> Result<BlameEntry> {
+        let mut parts = line.split_whitespace();
+
+        let sha = parts
+            .next()
+            .and_then(|line| line.parse::<Oid>().ok())
+            .ok_or_else(|| anyhow!("failed to parse sha"))?;
+
+        let original_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse original line number"))?;
+        let final_line_number = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let line_count = parts
+            .next()
+            .and_then(|line| line.parse::<u32>().ok())
+            .ok_or_else(|| anyhow!("Failed to parse final line number"))?;
+
+        let start_line = final_line_number.saturating_sub(1);
+        let end_line = start_line + line_count;
+        let range = start_line..end_line;
+
+        Ok(Self {
+            sha,
+            range,
+            original_line_number,
+            ..Default::default()
+        })
+    }
+
+    pub fn author_offset_date_time(&self) -> Result<time::OffsetDateTime> {
+        if let (Some(author_time), Some(author_tz)) = (self.author_time, &self.author_tz) {
+            let format = format_description!("[offset_hour][offset_minute]");
+            let offset = UtcOffset::parse(author_tz, &format)?;
+            let date_time_utc = OffsetDateTime::from_unix_timestamp(author_time)?;
+
+            Ok(date_time_utc.to_offset(offset))
+        } else {
+            // Directly return current time in UTC if there's no committer time or timezone
+            Ok(time::OffsetDateTime::now_utc())
+        }
+    }
+}
+
+// parse_git_blame parses the output of `git blame --incremental`, which returns
+// all the blame-entries for a given path incrementally, as it finds them.
+//
+// Each entry *always* starts with:
+//
+//     <40-byte-hex-sha1> <sourceline> <resultline> <num-lines>
+//
+// Each entry *always* ends with:
+//
+//     filename <whitespace-quoted-filename-goes-here>
+//
+// Line numbers are 1-indexed.
+//
+// A `git blame --incremental` entry looks like this:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 2 2 1
+//    author Joe Schmoe
+//    author-mail <joe.schmoe@example.com>
+//    author-time 1709741400
+//    author-tz +0100
+//    committer Joe Schmoe
+//    committer-mail <joe.schmoe@example.com>
+//    committer-time 1709741400
+//    committer-tz +0100
+//    summary Joe's cool commit
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// If the entry has the same SHA as an entry that was already printed then no
+// signature information is printed:
+//
+//    6ad46b5257ba16d12c5ca9f0d4900320959df7f4 3 4 1
+//    previous 486c2409237a2c627230589e567024a96751d475 index.js
+//    filename index.js
+//
+// More about `--incremental` output: https://mirrors.edge.kernel.org/pub/software/scm/git/docs/git-blame.html
+fn parse_git_blame(output: &str) -> Result<Vec<BlameEntry>> {
+    let mut entries: Vec<BlameEntry> = Vec::new();
+    let mut index: HashMap<Oid, usize> = HashMap::default();
+
+    let mut current_entry: Option<BlameEntry> = None;
+
+    for line in output.lines() {
+        let mut done = false;
+
+        match &mut current_entry {
+            None => {
+                let mut new_entry = BlameEntry::new_from_blame_line(line)?;
+
+                if let Some(existing_entry) = index
+                    .get(&new_entry.sha)
+                    .and_then(|slot| entries.get(*slot))
+                {
+                    new_entry.author.clone_from(&existing_entry.author);
+                    new_entry
+                        .author_mail
+                        .clone_from(&existing_entry.author_mail);
+                    new_entry.author_time = existing_entry.author_time;
+                    new_entry.author_tz.clone_from(&existing_entry.author_tz);
+                    new_entry
+                        .committer_name
+                        .clone_from(&existing_entry.committer_name);
+                    new_entry
+                        .committer_email
+                        .clone_from(&existing_entry.committer_email);
+                    new_entry.committer_time = existing_entry.committer_time;
+                    new_entry
+                        .committer_tz
+                        .clone_from(&existing_entry.committer_tz);
+                    new_entry.summary.clone_from(&existing_entry.summary);
+                }
+
+                current_entry.replace(new_entry);
+            }
+            Some(entry) => {
+                let Some((key, value)) = line.split_once(' ') else {
+                    continue;
+                };
+                let is_committed = !entry.sha.is_zero();
+                match key {
+                    "filename" => {
+                        entry.filename = value.into();
+                        done = true;
+                    }
+                    "previous" => entry.previous = Some(value.into()),
+
+                    "summary" if is_committed => entry.summary = Some(value.into()),
+                    "author" if is_committed => entry.author = Some(value.into()),
+                    "author-mail" if is_committed => entry.author_mail = Some(value.into()),
+                    "author-time" if is_committed => {
+                        entry.author_time = Some(value.parse::<i64>()?)
+                    }
+                    "author-tz" if is_committed => entry.author_tz = Some(value.into()),
+
+                    "committer" if is_committed => entry.committer_name = Some(value.into()),
+                    "committer-mail" if is_committed => entry.committer_email = Some(value.into()),
+                    "committer-time" if is_committed => {
+                        entry.committer_time = Some(value.parse::<i64>()?)
+                    }
+                    "committer-tz" if is_committed => entry.committer_tz = Some(value.into()),
+                    _ => {}
+                }
+            }
+        };
+
+        if done {
+            if let Some(entry) = current_entry.take() {
+                index.insert(entry.sha, entries.len());
+
+                // We only want annotations that have a commit.
+                if !entry.sha.is_zero() {
+                    entries.push(entry);
+                }
+            }
+        }
+    }
+
+    Ok(entries)
+}
+
+#[cfg(test)]
+mod tests {
+    use std::path::PathBuf;
+
+    use super::BlameEntry;
+    use super::parse_git_blame;
+
+    fn read_test_data(filename: &str) -> String {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push(filename);
+
+        std::fs::read_to_string(&path)
+            .unwrap_or_else(|_| panic!("Could not read test data at {:?}. Is it generated?", path))
+    }
+
+    fn assert_eq_golden(entries: &Vec<BlameEntry>, golden_filename: &str) {
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+        path.push("test_data");
+        path.push("golden");
+        path.push(format!("{}.json", golden_filename));
+
+        let mut have_json =
+            serde_json::to_string_pretty(&entries).expect("could not serialize entries to JSON");
+        // We always want to save with a trailing newline.
+        have_json.push('\n');
+
+        let update = std::env::var("UPDATE_GOLDEN")
+            .map(|val| val.eq_ignore_ascii_case("true"))
+            .unwrap_or(false);
+
+        if update {
+            std::fs::create_dir_all(path.parent().unwrap())
+                .expect("could not create golden test data directory");
+            std::fs::write(&path, have_json).expect("could not write out golden data");
+        } else {
+            let want_json =
+                std::fs::read_to_string(&path).unwrap_or_else(|_| {
+                    panic!("could not read golden test data file at {:?}. Did you run the test with UPDATE_GOLDEN=true before?", path);
+                }).replace("\r\n", "\n");
+
+            pretty_assertions::assert_eq!(have_json, want_json, "wrong blame entries");
+        }
+    }
+
+    #[test]
+    fn test_parse_git_blame_not_committed() {
+        let output = read_test_data("blame_incremental_not_committed");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_not_committed");
+    }
+
+    #[test]
+    fn test_parse_git_blame_simple() {
+        let output = read_test_data("blame_incremental_simple");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_simple");
+    }
+
+    #[test]
+    fn test_parse_git_blame_complex() {
+        let output = read_test_data("blame_incremental_complex");
+        let entries = parse_git_blame(&output).unwrap();
+        assert_eq_golden(&entries, "blame_incremental_complex");
+    }
+}

crates/assistant_tools/src/grep_tool.rs

@@ -2,7 +2,7 @@ use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
 use futures::StreamExt;
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use language::OffsetRangeExt;
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::{
@@ -20,6 +20,8 @@ use util::paths::PathMatcher;
 pub struct GrepToolInput {
     /// A regex pattern to search for in the entire project. Note that the regex
     /// will be parsed by the Rust `regex` crate.
+    ///
+    /// Do NOT specify a path here! This will only be matched against the code **content**.
     pub regex: String,
 
     /// A glob pattern for the paths of files to include in the search.
@@ -96,6 +98,7 @@ impl Tool for GrepTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         const CONTEXT_LINES: u32 = 2;
@@ -405,7 +408,7 @@ mod tests {
     ) -> String {
         let tool = Arc::new(GrepTool);
         let action_log = cx.new(|_cx| ActionLog::new(project.clone()));
-        let task = cx.update(|cx| tool.run(input, &[], project, action_log, cx));
+        let task = cx.update(|cx| tool.run(input, &[], project, action_log, None, cx));
 
         match task.output.await {
             Ok(result) => result,

crates/assistant_tools/src/list_directory_tool.rs

@@ -1,7 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -76,6 +76,7 @@ impl Tool for ListDirectoryTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<ListDirectoryToolInput>(input) {

crates/assistant_tools/src/list_directory_tool/description.md

@@ -1 +1 @@
-Lists files and directories in a given path. Prefer the `grep` or `path_search` tools when searching the codebase.
+Lists files and directories in a given path. Prefer the `grep` or `find_path` tools when searching the codebase.

crates/assistant_tools/src/move_path_tool.rs

@@ -1,7 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, AppContext, Entity, Task};
+use gpui::{AnyWindowHandle, App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -89,6 +89,7 @@ impl Tool for MovePathTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<MovePathToolInput>(input) {

crates/assistant_tools/src/now_tool.rs

@@ -4,7 +4,7 @@ use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
 use chrono::{Local, Utc};
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -59,6 +59,7 @@ impl Tool for NowTool {
         _messages: &[LanguageModelRequestMessage],
         _project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         _cx: &mut App,
     ) -> ToolResult {
         let input: NowToolInput = match serde_json::from_value(input) {

crates/assistant_tools/src/open_tool.rs

@@ -1,7 +1,7 @@
 use crate::schema::json_schema_for;
 use anyhow::{Context as _, Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, AppContext, Entity, Task};
+use gpui::{AnyWindowHandle, App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -52,6 +52,7 @@ impl Tool for OpenTool {
         _messages: &[LanguageModelRequestMessage],
         _project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input: OpenToolInput = match serde_json::from_value(input) {

crates/assistant_tools/src/read_file_tool.rs

@@ -1,7 +1,8 @@
 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 gpui::{AnyWindowHandle, App, Entity, Task};
+
 use indoc::formatdoc;
 use itertools::Itertools;
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
@@ -87,6 +88,7 @@ impl Tool for ReadFileTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<ReadFileToolInput>(input) {
@@ -134,7 +136,7 @@ impl Tool for ReadFileTool {
                 })?;
 
                 action_log.update(cx, |log, cx| {
-                    log.buffer_read(buffer, cx);
+                    log.track_buffer(buffer, cx);
                 })?;
 
                 Ok(result)
@@ -147,7 +149,7 @@ impl Tool for ReadFileTool {
                     let result = buffer.read_with(cx, |buffer, _cx| buffer.text())?;
 
                     action_log.update(cx, |log, cx| {
-                        log.buffer_read(buffer, cx);
+                        log.track_buffer(buffer, cx);
                     })?;
 
                     Ok(result)
@@ -193,7 +195,7 @@ mod test {
                     "path": "root/nonexistent_file.txt"
                 });
                 Arc::new(ReadFileTool)
-                    .run(input, &[], project.clone(), action_log, cx)
+                    .run(input, &[], project.clone(), action_log, None, cx)
                     .output
             })
             .await;
@@ -223,7 +225,7 @@ mod test {
                     "path": "root/small_file.txt"
                 });
                 Arc::new(ReadFileTool)
-                    .run(input, &[], project.clone(), action_log, cx)
+                    .run(input, &[], project.clone(), action_log, None, cx)
                     .output
             })
             .await;
@@ -253,7 +255,7 @@ mod test {
                     "path": "root/large_file.rs"
                 });
                 Arc::new(ReadFileTool)
-                    .run(input, &[], project.clone(), action_log.clone(), cx)
+                    .run(input, &[], project.clone(), action_log.clone(), None, cx)
                     .output
             })
             .await;
@@ -277,7 +279,7 @@ mod test {
                     "offset": 1
                 });
                 Arc::new(ReadFileTool)
-                    .run(input, &[], project.clone(), action_log, cx)
+                    .run(input, &[], project.clone(), action_log, None, cx)
                     .output
             })
             .await;
@@ -323,7 +325,7 @@ mod test {
                     "end_line": 4
                 });
                 Arc::new(ReadFileTool)
-                    .run(input, &[], project.clone(), action_log, cx)
+                    .run(input, &[], project.clone(), action_log, None, cx)
                     .output
             })
             .await;

crates/assistant_tools/src/rename_tool.rs

@@ -1,6 +1,6 @@
 use anyhow::{Context as _, Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use language::{self, Buffer, ToPointUtf16};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -87,6 +87,7 @@ impl Tool for RenameTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<RenameToolInput>(input) {
@@ -106,7 +107,7 @@ impl Tool for RenameTool {
             };
 
             action_log.update(cx, |action_log, cx| {
-                action_log.buffer_read(buffer.clone(), cx);
+                action_log.track_buffer(buffer.clone(), cx);
             })?;
 
             let position = {

crates/assistant_tools/src/replace.rs

@@ -1,872 +0,0 @@
-use language::{BufferSnapshot, Diff, Point, ToOffset};
-use project::search::SearchQuery;
-use std::iter;
-use util::{ResultExt as _, paths::PathMatcher};
-
-/// Performs an exact string replacement in a buffer, requiring precise character-for-character matching.
-/// Uses the search functionality to locate the first occurrence of the exact string.
-/// Returns None if no exact match is found in the buffer.
-pub async fn replace_exact(old: &str, new: &str, snapshot: &BufferSnapshot) -> Option<Diff> {
-    let query = SearchQuery::text(
-        old,
-        false,
-        true,
-        true,
-        PathMatcher::new(iter::empty::<&str>()).ok()?,
-        PathMatcher::new(iter::empty::<&str>()).ok()?,
-        false,
-        None,
-    )
-    .log_err()?;
-
-    let matches = query.search(&snapshot, None).await;
-
-    if matches.is_empty() {
-        return None;
-    }
-
-    let edit_range = matches[0].clone();
-    let diff = language::text_diff(&old, &new);
-
-    let edits = diff
-        .into_iter()
-        .map(|(old_range, text)| {
-            let start = edit_range.start + old_range.start;
-            let end = edit_range.start + old_range.end;
-            (start..end, text)
-        })
-        .collect::<Vec<_>>();
-
-    let diff = language::Diff {
-        base_version: snapshot.version().clone(),
-        line_ending: snapshot.line_ending(),
-        edits,
-    };
-
-    Some(diff)
-}
-
-/// Performs a replacement that's indentation-aware - matches text content ignoring leading whitespace differences.
-/// When replacing, preserves the indentation level found in the buffer at each matching line.
-/// Returns None if no match found or if indentation is offset inconsistently across matched lines.
-pub fn replace_with_flexible_indent(old: &str, new: &str, buffer: &BufferSnapshot) -> Option<Diff> {
-    let (old_lines, old_min_indent) = lines_with_min_indent(old);
-    let (new_lines, new_min_indent) = lines_with_min_indent(new);
-    let min_indent = old_min_indent.min(new_min_indent);
-
-    let old_lines = drop_lines_prefix(&old_lines, min_indent);
-    let new_lines = drop_lines_prefix(&new_lines, min_indent);
-
-    let max_row = buffer.max_point().row;
-
-    'windows: for start_row in 0..max_row + 1 {
-        let end_row = start_row + old_lines.len().saturating_sub(1) as u32;
-
-        if end_row > max_row {
-            // The buffer ends before fully matching the pattern
-            return None;
-        }
-
-        let start_point = Point::new(start_row, 0);
-        let end_point = Point::new(end_row, buffer.line_len(end_row));
-        let range = start_point.to_offset(buffer)..end_point.to_offset(buffer);
-
-        let window_text = buffer.text_for_range(range.clone());
-        let mut window_lines = window_text.lines();
-        let mut old_lines_iter = old_lines.iter();
-
-        let mut common_mismatch = None;
-
-        #[derive(Eq, PartialEq)]
-        enum Mismatch {
-            OverIndented(String),
-            UnderIndented(String),
-        }
-
-        while let (Some(window_line), Some(old_line)) = (window_lines.next(), old_lines_iter.next())
-        {
-            let line_trimmed = window_line.trim_start();
-
-            if line_trimmed != old_line.trim_start() {
-                continue 'windows;
-            }
-
-            if line_trimmed.is_empty() {
-                continue;
-            }
-
-            let line_mismatch = if window_line.len() > old_line.len() {
-                let prefix = window_line[..window_line.len() - old_line.len()].to_string();
-                Mismatch::UnderIndented(prefix)
-            } else {
-                let prefix = old_line[..old_line.len() - window_line.len()].to_string();
-                Mismatch::OverIndented(prefix)
-            };
-
-            match &common_mismatch {
-                Some(common_mismatch) if common_mismatch != &line_mismatch => {
-                    continue 'windows;
-                }
-                Some(_) => (),
-                None => common_mismatch = Some(line_mismatch),
-            }
-        }
-
-        if let Some(common_mismatch) = &common_mismatch {
-            let line_ending = buffer.line_ending();
-            let replacement = new_lines
-                .iter()
-                .map(|new_line| {
-                    if new_line.trim().is_empty() {
-                        new_line.to_string()
-                    } else {
-                        match common_mismatch {
-                            Mismatch::UnderIndented(prefix) => prefix.to_string() + new_line,
-                            Mismatch::OverIndented(prefix) => new_line
-                                .strip_prefix(prefix)
-                                .unwrap_or(new_line)
-                                .to_string(),
-                        }
-                    }
-                })
-                .collect::<Vec<_>>()
-                .join(line_ending.as_str());
-
-            let diff = Diff {
-                base_version: buffer.version().clone(),
-                line_ending,
-                edits: vec![(range, replacement.into())],
-            };
-
-            return Some(diff);
-        }
-    }
-
-    None
-}
-
-fn drop_lines_prefix<'a>(lines: &'a [&str], prefix_len: usize) -> Vec<&'a str> {
-    lines
-        .iter()
-        .map(|line| line.get(prefix_len..).unwrap_or(""))
-        .collect()
-}
-
-fn lines_with_min_indent(input: &str) -> (Vec<&str>, usize) {
-    let mut lines = Vec::new();
-    let mut min_indent: Option<usize> = None;
-
-    for line in input.lines() {
-        lines.push(line);
-        if !line.trim().is_empty() {
-            let indent = line.len() - line.trim_start().len();
-            min_indent = Some(min_indent.map_or(indent, |m| m.min(indent)));
-        }
-    }
-
-    (lines, min_indent.unwrap_or(0))
-}
-
-#[cfg(test)]
-mod replace_exact_tests {
-    use super::*;
-    use gpui::TestAppContext;
-    use gpui::prelude::*;
-
-    #[gpui::test]
-    async fn basic(cx: &mut TestAppContext) {
-        let result = test_replace_exact(cx, "let x = 41;", "let x = 41;", "let x = 42;").await;
-        assert_eq!(result, Some("let x = 42;".to_string()));
-    }
-
-    #[gpui::test]
-    async fn no_match(cx: &mut TestAppContext) {
-        let result = test_replace_exact(cx, "let x = 41;", "let y = 42;", "let y = 43;").await;
-        assert_eq!(result, None);
-    }
-
-    #[gpui::test]
-    async fn multi_line(cx: &mut TestAppContext) {
-        let whole = "fn example() {\n    let x = 41;\n    println!(\"x = {}\", x);\n}";
-        let old_text = "    let x = 41;\n    println!(\"x = {}\", x);";
-        let new_text = "    let x = 42;\n    println!(\"x = {}\", x);";
-        let result = test_replace_exact(cx, whole, old_text, new_text).await;
-        assert_eq!(
-            result,
-            Some("fn example() {\n    let x = 42;\n    println!(\"x = {}\", x);\n}".to_string())
-        );
-    }
-
-    #[gpui::test]
-    async fn multiple_occurrences(cx: &mut TestAppContext) {
-        let whole = "let x = 41;\nlet y = 41;\nlet z = 41;";
-        let result = test_replace_exact(cx, whole, "let x = 41;", "let x = 42;").await;
-        assert_eq!(
-            result,
-            Some("let x = 42;\nlet y = 41;\nlet z = 41;".to_string())
-        );
-    }
-
-    #[gpui::test]
-    async fn empty_buffer(cx: &mut TestAppContext) {
-        let result = test_replace_exact(cx, "", "let x = 41;", "let x = 42;").await;
-        assert_eq!(result, None);
-    }
-
-    #[gpui::test]
-    async fn partial_match(cx: &mut TestAppContext) {
-        let whole = "let x = 41; let y = 42;";
-        let result = test_replace_exact(cx, whole, "let x = 41", "let x = 42").await;
-        assert_eq!(result, Some("let x = 42; let y = 42;".to_string()));
-    }
-
-    #[gpui::test]
-    async fn whitespace_sensitive(cx: &mut TestAppContext) {
-        let result = test_replace_exact(cx, "let x = 41;", " let x = 41;", "let x = 42;").await;
-        assert_eq!(result, None);
-    }
-
-    #[gpui::test]
-    async fn entire_buffer(cx: &mut TestAppContext) {
-        let result = test_replace_exact(cx, "let x = 41;", "let x = 41;", "let x = 42;").await;
-        assert_eq!(result, Some("let x = 42;".to_string()));
-    }
-
-    async fn test_replace_exact(
-        cx: &mut TestAppContext,
-        whole: &str,
-        old: &str,
-        new: &str,
-    ) -> Option<String> {
-        let buffer = cx.new(|cx| language::Buffer::local(whole, cx));
-
-        let buffer_snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        let diff = replace_exact(old, new, &buffer_snapshot).await;
-        diff.map(|diff| {
-            buffer.update(cx, |buffer, cx| {
-                let _ = buffer.apply_diff(diff, cx);
-                buffer.text()
-            })
-        })
-    }
-}
-
-#[cfg(test)]
-mod flexible_indent_tests {
-    use super::*;
-    use gpui::TestAppContext;
-    use gpui::prelude::*;
-    use unindent::Unindent;
-
-    #[gpui::test]
-    fn test_underindented_single_line(cx: &mut TestAppContext) {
-        let cur = "        let a = 41;".to_string();
-        let old = "    let a = 41;".to_string();
-        let new = "    let a = 42;".to_string();
-        let exp = "        let a = 42;".to_string();
-
-        let result = test_replace_with_flexible_indent(cx, &cur, &old, &new);
-
-        assert_eq!(result, Some(exp.to_string()))
-    }
-
-    #[gpui::test]
-    fn test_overindented_single_line(cx: &mut TestAppContext) {
-        let cur = "    let a = 41;".to_string();
-        let old = "        let a = 41;".to_string();
-        let new = "        let a = 42;".to_string();
-        let exp = "    let a = 42;".to_string();
-
-        let result = test_replace_with_flexible_indent(cx, &cur, &old, &new);
-
-        assert_eq!(result, Some(exp.to_string()))
-    }
-
-    #[gpui::test]
-    fn test_underindented_multi_line(cx: &mut TestAppContext) {
-        let whole = r#"
-            fn test() {
-                let x = 5;
-                println!("x = {}", x);
-                let y = 10;
-            }
-        "#
-        .unindent();
-
-        let old = r#"
-            let x = 5;
-            println!("x = {}", x);
-        "#
-        .unindent();
-
-        let new = r#"
-            let x = 42;
-            println!("New value: {}", x);
-        "#
-        .unindent();
-
-        let expected = r#"
-            fn test() {
-                let x = 42;
-                println!("New value: {}", x);
-                let y = 10;
-            }
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            Some(expected.to_string())
-        );
-    }
-
-    #[gpui::test]
-    fn test_overindented_multi_line(cx: &mut TestAppContext) {
-        let cur = r#"
-            fn foo() {
-                let a = 41;
-                let b = 3.13;
-            }
-        "#
-        .unindent();
-
-        // 6 space indent instead of 4
-        let old = "      let a = 41;\n      let b = 3.13;";
-        let new = "      let a = 42;\n      let b = 3.14;";
-
-        let expected = r#"
-            fn foo() {
-                let a = 42;
-                let b = 3.14;
-            }
-        "#
-        .unindent();
-
-        let result = test_replace_with_flexible_indent(cx, &cur, &old, &new);
-
-        assert_eq!(result, Some(expected.to_string()))
-    }
-
-    #[gpui::test]
-    fn test_replace_inconsistent_indentation(cx: &mut TestAppContext) {
-        let whole = r#"
-            fn test() {
-                if condition {
-                    println!("{}", 43);
-                }
-            }
-        "#
-        .unindent();
-
-        let old = r#"
-            if condition {
-            println!("{}", 43);
-        "#
-        .unindent();
-
-        let new = r#"
-            if condition {
-            println!("{}", 42);
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            None
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_with_empty_lines(cx: &mut TestAppContext) {
-        // Test with empty lines
-        let whole = r#"
-            fn test() {
-                let x = 5;
-
-                println!("x = {}", x);
-            }
-        "#
-        .unindent();
-
-        let old = r#"
-            let x = 5;
-
-            println!("x = {}", x);
-        "#
-        .unindent();
-
-        let new = r#"
-            let x = 10;
-
-            println!("New x: {}", x);
-        "#
-        .unindent();
-
-        let expected = r#"
-            fn test() {
-                let x = 10;
-
-                println!("New x: {}", x);
-            }
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            Some(expected.to_string())
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_no_match(cx: &mut TestAppContext) {
-        let whole = r#"
-            fn test() {
-                let x = 5;
-            }
-        "#
-        .unindent();
-
-        let old = r#"
-            let y = 10;
-        "#
-        .unindent();
-
-        let new = r#"
-            let y = 20;
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            None
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_whole_ends_before_matching_old(cx: &mut TestAppContext) {
-        let whole = r#"
-            fn test() {
-                let x = 5;
-        "#
-        .unindent();
-
-        let old = r#"
-            let x = 5;
-            println!("x = {}", x);
-        "#
-        .unindent();
-
-        let new = r#"
-            let x = 10;
-            println!("x = {}", x);
-        "#
-        .unindent();
-
-        // Should return None because whole doesn't fully contain the old text
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            None
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_whole_is_shorter_than_old(cx: &mut TestAppContext) {
-        let whole = r#"
-            let x = 5;
-        "#
-        .unindent();
-
-        let old = r#"
-            let x = 5;
-            let y = 10;
-        "#
-        .unindent();
-
-        let new = r#"
-            let x = 5;
-            let y = 20;
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            None
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_old_is_empty(cx: &mut TestAppContext) {
-        let whole = r#"
-            fn test() {
-                let x = 5;
-            }
-        "#
-        .unindent();
-
-        let old = "";
-        let new = r#"
-            let y = 10;
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            None
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_whole_is_empty(cx: &mut TestAppContext) {
-        let whole = "";
-        let old = r#"
-            let x = 5;
-        "#
-        .unindent();
-
-        let new = r#"
-            let x = 10;
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            None
-        );
-    }
-
-    #[test]
-    fn test_lines_with_min_indent() {
-        // Empty string
-        assert_eq!(lines_with_min_indent(""), (vec![], 0));
-
-        // Single line without indentation
-        assert_eq!(lines_with_min_indent("hello"), (vec!["hello"], 0));
-
-        // Multiple lines with no indentation
-        assert_eq!(
-            lines_with_min_indent("line1\nline2\nline3"),
-            (vec!["line1", "line2", "line3"], 0)
-        );
-
-        // Multiple lines with consistent indentation
-        assert_eq!(
-            lines_with_min_indent("  line1\n  line2\n  line3"),
-            (vec!["  line1", "  line2", "  line3"], 2)
-        );
-
-        // Multiple lines with varying indentation
-        assert_eq!(
-            lines_with_min_indent("    line1\n  line2\n      line3"),
-            (vec!["    line1", "  line2", "      line3"], 2)
-        );
-
-        // Lines with mixed indentation and empty lines
-        assert_eq!(
-            lines_with_min_indent("    line1\n\n  line2"),
-            (vec!["    line1", "", "  line2"], 2)
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_with_missing_indent_uneven_match(cx: &mut TestAppContext) {
-        let whole = r#"
-            fn test() {
-                if true {
-                        let x = 5;
-                        println!("x = {}", x);
-                }
-            }
-        "#
-        .unindent();
-
-        let old = r#"
-            let x = 5;
-            println!("x = {}", x);
-        "#
-        .unindent();
-
-        let new = r#"
-            let x = 42;
-            println!("x = {}", x);
-        "#
-        .unindent();
-
-        let expected = r#"
-            fn test() {
-                if true {
-                        let x = 42;
-                        println!("x = {}", x);
-                }
-            }
-        "#
-        .unindent();
-
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            Some(expected.to_string())
-        );
-    }
-
-    #[gpui::test]
-    fn test_replace_big_example(cx: &mut TestAppContext) {
-        let whole = r#"
-            #[cfg(test)]
-            mod tests {
-                use super::*;
-
-                #[test]
-                fn test_is_valid_age() {
-                    assert!(is_valid_age(0));
-                    assert!(!is_valid_age(151));
-                }
-            }
-        "#
-        .unindent();
-
-        let old = r#"
-            #[test]
-            fn test_is_valid_age() {
-                assert!(is_valid_age(0));
-                assert!(!is_valid_age(151));
-            }
-        "#
-        .unindent();
-
-        let new = r#"
-            #[test]
-            fn test_is_valid_age() {
-                assert!(is_valid_age(0));
-                assert!(!is_valid_age(151));
-            }
-
-            #[test]
-            fn test_group_people_by_age() {
-                let people = vec![
-                    Person::new("Young One", 5, "young@example.com").unwrap(),
-                    Person::new("Teen One", 15, "teen@example.com").unwrap(),
-                    Person::new("Teen Two", 18, "teen2@example.com").unwrap(),
-                    Person::new("Adult One", 25, "adult@example.com").unwrap(),
-                ];
-
-                let groups = group_people_by_age(&people);
-
-                assert_eq!(groups.get(&0).unwrap().len(), 1);  // One person in 0-9
-                assert_eq!(groups.get(&10).unwrap().len(), 2); // Two people in 10-19
-                assert_eq!(groups.get(&20).unwrap().len(), 1); // One person in 20-29
-            }
-        "#
-        .unindent();
-        let expected = r#"
-            #[cfg(test)]
-            mod tests {
-                use super::*;
-
-                #[test]
-                fn test_is_valid_age() {
-                    assert!(is_valid_age(0));
-                    assert!(!is_valid_age(151));
-                }
-
-                #[test]
-                fn test_group_people_by_age() {
-                    let people = vec![
-                        Person::new("Young One", 5, "young@example.com").unwrap(),
-                        Person::new("Teen One", 15, "teen@example.com").unwrap(),
-                        Person::new("Teen Two", 18, "teen2@example.com").unwrap(),
-                        Person::new("Adult One", 25, "adult@example.com").unwrap(),
-                    ];
-
-                    let groups = group_people_by_age(&people);
-
-                    assert_eq!(groups.get(&0).unwrap().len(), 1);  // One person in 0-9
-                    assert_eq!(groups.get(&10).unwrap().len(), 2); // Two people in 10-19
-                    assert_eq!(groups.get(&20).unwrap().len(), 1); // One person in 20-29
-                }
-            }
-        "#
-        .unindent();
-        assert_eq!(
-            test_replace_with_flexible_indent(cx, &whole, &old, &new),
-            Some(expected.to_string())
-        );
-    }
-
-    #[test]
-    fn test_drop_lines_prefix() {
-        // Empty array
-        assert_eq!(drop_lines_prefix(&[], 2), Vec::<&str>::new());
-
-        // Zero prefix length
-        assert_eq!(
-            drop_lines_prefix(&["line1", "line2"], 0),
-            vec!["line1", "line2"]
-        );
-
-        // Normal prefix drop
-        assert_eq!(
-            drop_lines_prefix(&["  line1", "  line2"], 2),
-            vec!["line1", "line2"]
-        );
-
-        // Prefix longer than some lines
-        assert_eq!(drop_lines_prefix(&["  line1", "a"], 2), vec!["line1", ""]);
-
-        // Prefix longer than all lines
-        assert_eq!(drop_lines_prefix(&["a", "b"], 5), vec!["", ""]);
-
-        // Mixed length lines
-        assert_eq!(
-            drop_lines_prefix(&["    line1", "  line2", "      line3"], 2),
-            vec!["  line1", "line2", "    line3"]
-        );
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_basic(cx: &mut TestAppContext) {
-        let buffer = cx.new(|cx| language::Buffer::local("let x = 41;", cx));
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        let diff = replace_exact("let x = 41;", "let x = 42;", &snapshot).await;
-        assert!(diff.is_some());
-
-        let diff = diff.unwrap();
-        assert_eq!(diff.edits.len(), 1);
-
-        let result = buffer.update(cx, |buffer, cx| {
-            let _ = buffer.apply_diff(diff, cx);
-            buffer.text()
-        });
-
-        assert_eq!(result, "let x = 42;");
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_no_match(cx: &mut TestAppContext) {
-        let buffer = cx.new(|cx| language::Buffer::local("let x = 41;", cx));
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        let diff = replace_exact("let y = 42;", "let y = 43;", &snapshot).await;
-        assert!(diff.is_none());
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_multi_line(cx: &mut TestAppContext) {
-        let buffer = cx.new(|cx| {
-            language::Buffer::local(
-                "fn example() {\n    let x = 41;\n    println!(\"x = {}\", x);\n}",
-                cx,
-            )
-        });
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        let old_text = "    let x = 41;\n    println!(\"x = {}\", x);";
-        let new_text = "    let x = 42;\n    println!(\"x = {}\", x);";
-        let diff = replace_exact(old_text, new_text, &snapshot).await;
-        assert!(diff.is_some());
-
-        let diff = diff.unwrap();
-        let result = buffer.update(cx, |buffer, cx| {
-            let _ = buffer.apply_diff(diff, cx);
-            buffer.text()
-        });
-
-        assert_eq!(
-            result,
-            "fn example() {\n    let x = 42;\n    println!(\"x = {}\", x);\n}"
-        );
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_multiple_occurrences(cx: &mut TestAppContext) {
-        let buffer =
-            cx.new(|cx| language::Buffer::local("let x = 41;\nlet y = 41;\nlet z = 41;", cx));
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        // Should replace only the first occurrence
-        let diff = replace_exact("let x = 41;", "let x = 42;", &snapshot).await;
-        assert!(diff.is_some());
-
-        let diff = diff.unwrap();
-        let result = buffer.update(cx, |buffer, cx| {
-            let _ = buffer.apply_diff(diff, cx);
-            buffer.text()
-        });
-
-        assert_eq!(result, "let x = 42;\nlet y = 41;\nlet z = 41;");
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_empty_buffer(cx: &mut TestAppContext) {
-        let buffer = cx.new(|cx| language::Buffer::local("", cx));
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        let diff = replace_exact("let x = 41;", "let x = 42;", &snapshot).await;
-        assert!(diff.is_none());
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_partial_match(cx: &mut TestAppContext) {
-        let buffer = cx.new(|cx| language::Buffer::local("let x = 41; let y = 42;", cx));
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        // Verify substring replacement actually works
-        let diff = replace_exact("let x = 41", "let x = 42", &snapshot).await;
-        assert!(diff.is_some());
-
-        let diff = diff.unwrap();
-        let result = buffer.update(cx, |buffer, cx| {
-            let _ = buffer.apply_diff(diff, cx);
-            buffer.text()
-        });
-
-        assert_eq!(result, "let x = 42; let y = 42;");
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_whitespace_sensitive(cx: &mut TestAppContext) {
-        let buffer = cx.new(|cx| language::Buffer::local("let x = 41;", cx));
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        let diff = replace_exact(" let x = 41;", "let x = 42;", &snapshot).await;
-        assert!(diff.is_none());
-    }
-
-    #[gpui::test]
-    async fn test_replace_exact_entire_buffer(cx: &mut TestAppContext) {
-        let buffer = cx.new(|cx| language::Buffer::local("let x = 41;", cx));
-        let snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        let diff = replace_exact("let x = 41;", "let x = 42;", &snapshot).await;
-        assert!(diff.is_some());
-
-        let diff = diff.unwrap();
-        let result = buffer.update(cx, |buffer, cx| {
-            let _ = buffer.apply_diff(diff, cx);
-            buffer.text()
-        });
-
-        assert_eq!(result, "let x = 42;");
-    }
-
-    fn test_replace_with_flexible_indent(
-        cx: &mut TestAppContext,
-        whole: &str,
-        old: &str,
-        new: &str,
-    ) -> Option<String> {
-        // Create a local buffer with the test content
-        let buffer = cx.new(|cx| language::Buffer::local(whole, cx));
-
-        // Get the buffer snapshot
-        let buffer_snapshot = buffer.read_with(cx, |buffer, _cx| buffer.snapshot());
-
-        // Call replace_flexible and transform the result
-        replace_with_flexible_indent(old, new, &buffer_snapshot).map(|diff| {
-            buffer.update(cx, |buffer, cx| {
-                let _ = buffer.apply_diff(diff, cx);
-                buffer.text()
-            })
-        })
-    }
-}

crates/assistant_tools/src/symbol_info_tool.rs

@@ -1,6 +1,6 @@
 use anyhow::{Context as _, Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, AsyncApp, Entity, Task};
+use gpui::{AnyWindowHandle, App, AsyncApp, Entity, Task};
 use language::{self, Anchor, Buffer, BufferSnapshot, Location, Point, ToPoint, ToPointUtf16};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
@@ -121,6 +121,7 @@ impl Tool for SymbolInfoTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<SymbolInfoToolInput>(input) {
@@ -140,7 +141,7 @@ impl Tool for SymbolInfoTool {
             };
 
             action_log.update(cx, |action_log, cx| {
-                action_log.buffer_read(buffer.clone(), cx);
+                action_log.track_buffer(buffer.clone(), cx);
             })?;
 
             let position = {

crates/assistant_tools/src/templates.rs

@@ -0,0 +1,32 @@
+use anyhow::Result;
+use handlebars::Handlebars;
+use rust_embed::RustEmbed;
+use serde::Serialize;
+use std::sync::Arc;
+
+#[derive(RustEmbed)]
+#[folder = "src/templates"]
+#[include = "*.hbs"]
+struct Assets;
+
+pub struct Templates(Handlebars<'static>);
+
+impl Templates {
+    pub fn new() -> Arc<Self> {
+        let mut handlebars = Handlebars::new();
+        handlebars.register_embed_templates::<Assets>().unwrap();
+        handlebars.register_escape_fn(|text| text.into());
+        Arc::new(Self(handlebars))
+    }
+}
+
+pub trait Template: Sized {
+    const TEMPLATE_NAME: &'static str;
+
+    fn render(&self, templates: &Templates) -> Result<String>
+    where
+        Self: Serialize + Sized,
+    {
+        Ok(templates.0.render(Self::TEMPLATE_NAME, self)?)
+    }
+}

crates/assistant_tools/src/templates/edit_agent.hbs

@@ -0,0 +1,46 @@
+You are an expert text editor. Taking the following file as an input:
+
+```{{path}}
+{{file_content}}
+```
+
+Your response must be a series of edits in the following format:
+
+<edits>
+<old_text>
+OLD TEXT 1 HERE
+</old_text>
+<new_text>
+NEW TEXT 1 HERE
+</new_text>
+
+<old_text>
+OLD TEXT 2 HERE
+</old_text>
+<new_text>
+NEW TEXT 2 HERE
+</new_text>
+
+<old_text>
+OLD TEXT 3 HERE
+</old_text>
+<new_text>
+NEW TEXT 3 HERE
+</new_text>
+</edits>
+
+Rules for editing:
+
+- `old_text` represents full lines (including indentation) in the input file that will be replaced with `new_text`
+- It is crucial that `old_text` is unique and unambiguous.
+- Always include enough context around the lines you want to replace in `old_text` such that it's impossible to mistake them for other lines.
+- If you want to replace many occurrences of the same text, repeat the same `old_text`/`new_text` pair multiple times and I will apply them sequentially, one occurrence at a time.
+- Don't explain why you made a change, just report the edits.
+- Never do MORE than what the user has requested.
+- Never do LESS than what the user has requested.
+
+<user_instructions>
+{{instructions}}
+</user_instructions>
+
+<edits>

crates/assistant_tools/src/terminal_tool.rs

@@ -3,7 +3,7 @@ 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 gpui::{AnyWindowHandle, App, AppContext, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -78,6 +78,7 @@ impl Tool for TerminalTool {
         _messages: &[LanguageModelRequestMessage],
         project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input: TerminalToolInput = match serde_json::from_value(input) {

crates/assistant_tools/src/thinking_tool.rs

@@ -3,7 +3,7 @@ use std::sync::Arc;
 use crate::schema::json_schema_for;
 use anyhow::{Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolResult};
-use gpui::{App, Entity, Task};
+use gpui::{AnyWindowHandle, App, Entity, Task};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
@@ -50,6 +50,7 @@ impl Tool for ThinkingTool {
         _messages: &[LanguageModelRequestMessage],
         _project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         _cx: &mut App,
     ) -> ToolResult {
         // This tool just "thinks out loud" and doesn't perform any actions.

crates/assistant_tools/src/web_search_tool.rs

@@ -5,13 +5,16 @@ use crate::ui::ToolCallCardHeader;
 use anyhow::{Context as _, Result, anyhow};
 use assistant_tool::{ActionLog, Tool, ToolCard, ToolResult, ToolUseStatus};
 use futures::{Future, FutureExt, TryFutureExt};
-use gpui::{App, AppContext, Context, Entity, IntoElement, Task, Window};
+use gpui::{
+    AnyWindowHandle, App, AppContext, Context, Entity, IntoElement, Task, WeakEntity, Window,
+};
 use language_model::{LanguageModelRequestMessage, LanguageModelToolSchemaFormat};
 use project::Project;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use ui::{IconName, Tooltip, prelude::*};
 use web_search::WebSearchRegistry;
+use workspace::Workspace;
 use zed_llm_client::{WebSearchCitation, WebSearchResponse};
 
 #[derive(Debug, Serialize, Deserialize, JsonSchema)]
@@ -54,6 +57,7 @@ impl Tool for WebSearchTool {
         _messages: &[LanguageModelRequestMessage],
         _project: Entity<Project>,
         _action_log: Entity<ActionLog>,
+        _window: Option<AnyWindowHandle>,
         cx: &mut App,
     ) -> ToolResult {
         let input = match serde_json::from_value::<WebSearchToolInput>(input) {
@@ -111,6 +115,7 @@ impl ToolCard for WebSearchToolCard {
         &mut self,
         _status: &ToolUseStatus,
         _window: &mut Window,
+        _workspace: WeakEntity<Workspace>,
         cx: &mut Context<Self>,
     ) -> impl IntoElement {
         let header = match self.response.as_ref() {
@@ -220,8 +225,13 @@ impl Component for WebSearchTool {
                         div()
                             .size_full()
                             .child(in_progress_search.update(cx, |tool, cx| {
-                                tool.render(&ToolUseStatus::Pending, window, cx)
-                                    .into_any_element()
+                                tool.render(
+                                    &ToolUseStatus::Pending,
+                                    window,
+                                    WeakEntity::new_invalid(),
+                                    cx,
+                                )
+                                .into_any_element()
                             }))
                             .into_any_element(),
                     ),
@@ -230,8 +240,13 @@ impl Component for WebSearchTool {
                         div()
                             .size_full()
                             .child(successful_search.update(cx, |tool, cx| {
-                                tool.render(&ToolUseStatus::Finished("".into()), window, cx)
-                                    .into_any_element()
+                                tool.render(
+                                    &ToolUseStatus::Finished("".into()),
+                                    window,
+                                    WeakEntity::new_invalid(),
+                                    cx,
+                                )
+                                .into_any_element()
                             }))
                             .into_any_element(),
                     ),
@@ -240,8 +255,13 @@ impl Component for WebSearchTool {
                         div()
                             .size_full()
                             .child(error_search.update(cx, |tool, cx| {
-                                tool.render(&ToolUseStatus::Error("".into()), window, cx)
-                                    .into_any_element()
+                                tool.render(
+                                    &ToolUseStatus::Error("".into()),
+                                    window,
+                                    WeakEntity::new_invalid(),
+                                    cx,
+                                )
+                                .into_any_element()
                             }))
                             .into_any_element(),
                     ),

crates/auto_update/src/auto_update.rs

@@ -118,6 +118,13 @@ impl Settings for AutoUpdateSetting {
 
         Ok(Self(auto_update.0))
     }
+
+    fn import_from_vscode(vscode: &settings::VsCodeSettings, current: &mut Self::FileContent) {
+        vscode.enum_setting("update.mode", current, |s| match s {
+            "none" | "manual" => Some(AutoUpdateSettingContent(false)),
+            _ => Some(AutoUpdateSettingContent(true)),
+        });
+    }
 }
 
 #[derive(Default)]

crates/call/src/call_settings.rs

@@ -32,4 +32,6 @@ impl Settings for CallSettings {
     fn load(sources: SettingsSources<Self::FileContent>, _: &mut App) -> Result<Self> {
         sources.json_merge()
     }
+
+    fn import_from_vscode(_vscode: &settings::VsCodeSettings, _current: &mut Self::FileContent) {}
 }

crates/client/src/client.rs

@@ -104,6 +104,8 @@ impl Settings for ClientSettings {
         }
         Ok(result)
     }
+
+    fn import_from_vscode(_vscode: &settings::VsCodeSettings, _current: &mut Self::FileContent) {}
 }
 
 #[derive(Default, Clone, Serialize, Deserialize, JsonSchema)]
@@ -130,6 +132,10 @@ impl Settings for ProxySettings {
                 .or(sources.default.proxy.clone()),
         })
     }
+
+    fn import_from_vscode(vscode: &settings::VsCodeSettings, current: &mut Self::FileContent) {
+        vscode.string_setting("http.proxy", &mut current.proxy);
+    }
 }
 
 pub fn init_settings(cx: &mut App) {
@@ -518,6 +524,18 @@ impl settings::Settings for TelemetrySettings {
                 .unwrap_or(sources.default.metrics.ok_or_else(Self::missing_default)?),
         })
     }
+
+    fn import_from_vscode(vscode: &settings::VsCodeSettings, current: &mut Self::FileContent) {
+        vscode.enum_setting("telemetry.telemetryLevel", &mut current.metrics, |s| {
+            Some(s == "all")
+        });
+        vscode.enum_setting("telemetry.telemetryLevel", &mut current.diagnostics, |s| {
+            Some(matches!(s, "all" | "error" | "crash"))
+        });
+        // we could translate telemetry.telemetryLevel, but just because users didn't want
+        // to send microsoft telemetry doesn't mean they don't want to send it to zed. their
+        // all/error/crash/off correspond to combinations of our "diagnostics" and "metrics".
+    }
 }
 
 impl Client {

crates/collab/Cargo.toml

@@ -34,14 +34,12 @@ dashmap.workspace = true
 derive_more.workspace = true
 envy = "0.4.2"
 futures.workspace = true
-google_ai.workspace = true
 hex.workspace = true
 http_client.workspace = true
 jsonwebtoken.workspace = true
 livekit_api.workspace = true
 log.workspace = true
 nanoid.workspace = true
-open_ai.workspace = true
 parking_lot.workspace = true
 prometheus = "0.14"
 prost.workspace = true
@@ -128,6 +126,7 @@ serde_json.workspace = true
 session = { workspace = true, features = ["test-support"] }
 settings = { workspace = true, features = ["test-support"] }
 sqlx = { version = "0.8", features = ["sqlite"] }
+task.workspace = true
 theme.workspace = true
 unindent.workspace = true
 util.workspace = true

crates/collab/migrations.sqlite/20221109000000_test_schema.sql

@@ -492,7 +492,8 @@ CREATE TABLE IF NOT EXISTS billing_customers (
     created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
     user_id INTEGER NOT NULL REFERENCES users (id),
     has_overdue_invoices BOOLEAN NOT NULL DEFAULT FALSE,
-    stripe_customer_id TEXT NOT NULL
+    stripe_customer_id TEXT NOT NULL,
+    trial_started_at TIMESTAMP
 );
 
 CREATE UNIQUE INDEX "uix_billing_customers_on_user_id" ON billing_customers (user_id);

crates/collab/migrations/20250422194500_add_trial_started_at_to_billing_customers.sql

@@ -0,0 +1,2 @@
+alter table billing_customers
+    add column trial_started_at timestamp without time zone;

crates/collab/migrations/20250423150129_add_head_commit_details_to_project_repositories.sql

@@ -0,0 +1,2 @@
+alter table project_repositories
+    add column head_commit_details varchar;

crates/collab/src/api/billing.rs

@@ -287,7 +287,7 @@ async fn create_billing_subscription(
         }
     }
 
-    let customer_id = if let Some(existing_customer) = existing_billing_customer {
+    let customer_id = if let Some(existing_customer) = &existing_billing_customer {
         CustomerId::from_str(&existing_customer.stripe_customer_id)
             .context("failed to parse customer ID")?
     } else {
@@ -320,6 +320,15 @@ async fn create_billing_subscription(
                 .await?
         }
         Some(ProductCode::ZedProTrial) => {
+            if let Some(existing_billing_customer) = &existing_billing_customer {
+                if existing_billing_customer.trial_started_at.is_some() {
+                    return Err(Error::http(
+                        StatusCode::FORBIDDEN,
+                        "user already used free trial".into(),
+                    ));
+                }
+            }
+
             stripe_billing
                 .checkout_with_zed_pro_trial(
                     app.config.zed_pro_price_id()?,
@@ -817,6 +826,24 @@ async fn handle_customer_subscription_event(
             .await?
             .ok_or_else(|| anyhow!("billing customer not found"))?;
 
+    if let Some(SubscriptionKind::ZedProTrial) = subscription_kind {
+        if subscription.status == SubscriptionStatus::Trialing {
+            let current_period_start =
+                DateTime::from_timestamp(subscription.current_period_start, 0)
+                    .ok_or_else(|| anyhow!("No trial subscription period start"))?;
+
+            app.db
+                .update_billing_customer(
+                    billing_customer.id,
+                    &UpdateBillingCustomerParams {
+                        trial_started_at: ActiveValue::set(Some(current_period_start.naive_utc())),
+                        ..Default::default()
+                    },
+                )
+                .await?;
+        }
+    }
+
     let was_canceled_due_to_payment_failure = subscription.status == SubscriptionStatus::Canceled
         && subscription
             .cancellation_details
@@ -843,6 +870,28 @@ async fn handle_customer_subscription_event(
         .get_billing_subscription_by_stripe_subscription_id(&subscription.id)
         .await?
     {
+        let llm_db = app
+            .llm_db
+            .clone()
+            .ok_or_else(|| anyhow!("LLM DB not initialized"))?;
+
+        let new_period_start_at =
+            chrono::DateTime::from_timestamp(subscription.current_period_start, 0)
+                .ok_or_else(|| anyhow!("No subscription period start"))?;
+        let new_period_end_at =
+            chrono::DateTime::from_timestamp(subscription.current_period_end, 0)
+                .ok_or_else(|| anyhow!("No subscription period end"))?;
+
+        llm_db
+            .transfer_existing_subscription_usage(
+                billing_customer.user_id,
+                &existing_subscription,
+                subscription_kind,
+                new_period_start_at,
+                new_period_end_at,
+            )
+            .await?;
+
         app.db
             .update_billing_subscription(
                 existing_subscription.id,

crates/collab/src/db/queries.rs

@@ -14,7 +14,6 @@ pub mod messages;
 pub mod notifications;
 pub mod processed_stripe_events;
 pub mod projects;
-pub mod rate_buckets;
 pub mod rooms;
 pub mod servers;
 pub mod users;

crates/collab/src/db/queries/billing_customers.rs

@@ -11,6 +11,7 @@ pub struct UpdateBillingCustomerParams {
     pub user_id: ActiveValue<UserId>,
     pub stripe_customer_id: ActiveValue<String>,
     pub has_overdue_invoices: ActiveValue<bool>,
+    pub trial_started_at: ActiveValue<Option<DateTime>>,
 }
 
 impl Database {
@@ -45,7 +46,8 @@ impl Database {
                 user_id: params.user_id.clone(),
                 stripe_customer_id: params.stripe_customer_id.clone(),
                 has_overdue_invoices: params.has_overdue_invoices.clone(),
-                ..Default::default()
+                trial_started_at: params.trial_started_at.clone(),
+                created_at: ActiveValue::not_set(),
             })
             .exec(&*tx)
             .await?;

crates/collab/src/db/queries/rate_buckets.rs

@@ -1,58 +0,0 @@
-use super::*;
-use crate::db::tables::rate_buckets;
-use sea_orm::{ColumnTrait, EntityTrait, QueryFilter};
-
-impl Database {
-    /// Saves the rate limit for the given user and rate limit name if the last_refill is later
-    /// than the currently saved timestamp.
-    pub async fn save_rate_buckets(&self, buckets: &[rate_buckets::Model]) -> Result<()> {
-        if buckets.is_empty() {
-            return Ok(());
-        }
-
-        self.transaction(|tx| async move {
-            rate_buckets::Entity::insert_many(buckets.iter().map(|bucket| {
-                rate_buckets::ActiveModel {
-                    user_id: ActiveValue::Set(bucket.user_id),
-                    rate_limit_name: ActiveValue::Set(bucket.rate_limit_name.clone()),
-                    token_count: ActiveValue::Set(bucket.token_count),
-                    last_refill: ActiveValue::Set(bucket.last_refill),
-                }
-            }))
-            .on_conflict(
-                OnConflict::columns([
-                    rate_buckets::Column::UserId,
-                    rate_buckets::Column::RateLimitName,
-                ])
-                .update_columns([
-                    rate_buckets::Column::TokenCount,
-                    rate_buckets::Column::LastRefill,
-                ])
-                .to_owned(),
-            )
-            .exec(&*tx)
-            .await?;
-
-            Ok(())
-        })
-        .await
-    }
-
-    /// Retrieves the rate limit for the given user and rate limit name.
-    pub async fn get_rate_bucket(
-        &self,
-        user_id: UserId,
-        rate_limit_name: &str,
-    ) -> Result<Option<rate_buckets::Model>> {
-        self.transaction(|tx| async move {
-            let rate_limit = rate_buckets::Entity::find()
-                .filter(rate_buckets::Column::UserId.eq(user_id))
-                .filter(rate_buckets::Column::RateLimitName.eq(rate_limit_name))
-                .one(&*tx)
-                .await?;
-
-            Ok(rate_limit)
-        })
-        .await
-    }
-}

crates/collab/src/db/tables.rs

@@ -28,7 +28,6 @@ pub mod project;
 pub mod project_collaborator;
 pub mod project_repository;
 pub mod project_repository_statuses;
-pub mod rate_buckets;
 pub mod room;
 pub mod room_participant;
 pub mod server;

crates/collab/src/db/tables/billing_customer.rs

@@ -10,6 +10,7 @@ pub struct Model {
     pub user_id: UserId,
     pub stripe_customer_id: String,
     pub has_overdue_invoices: bool,
+    pub trial_started_at: Option<DateTime>,
     pub created_at: DateTime,
 }