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…chatHookContentPart.ts Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Pull request overview
This PR introduces a new chat progress “hook” part so hook execution results can be streamed from extensions, persisted in chat sessions, and rendered in the chat UI.
Changes:
- Adds proposed API surface for
ChatResponseHookPartand ahookProgress(...)helper onChatResponseStream. - Extends the internal chat model/progress unions and session operation log schema to recognize the new
kind: 'hook'part. - Implements a new UI content part (
ChatHookContentPart) and wires it into the chat list renderer.
Reviewed changes
Copilot reviewed 10 out of 11 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts | Adds proposed API types + stream method for reporting hook execution results. |
| src/vs/workbench/contrib/chat/common/model/chatSessionOperationLog.ts | Updates persistence equality logic to account for the new hook part kind. |
| src/vs/workbench/contrib/chat/common/model/chatModel.ts | Adds hook to response/history unions and response stringification ignore list. |
| src/vs/workbench/contrib/chat/common/chatService/chatService.ts | Defines ChatHookType, ChatHookOutcome, and IChatHookPart and includes it in IChatProgress. |
| src/vs/workbench/contrib/chat/browser/widget/chatListRenderer.ts | Routes kind: 'hook' content to a dedicated renderer content part. |
| src/vs/workbench/contrib/chat/browser/widget/chatContentParts/media/chatHookContentPart.css | Styles hook outcome icon and hook detail display. |
| src/vs/workbench/contrib/chat/browser/widget/chatContentParts/chatHookContentPart.ts | Implements the collapsible hook result UI component. |
| src/vs/workbench/api/common/extHostTypes.ts | Adds ext host-side ChatResponseHookPart type for the API implementation. |
| src/vs/workbench/api/common/extHostTypeConverters.ts | Adds DTO conversions and part detection for ChatResponseHookPart. |
| src/vs/workbench/api/common/extHostChatAgents2.ts | Adds hookProgress(...) streaming method implementation in the ext host response stream. |
| src/vs/workbench/api/common/extHost.api.impl.ts | Exposes ChatResponseHookPart constructor on the proposed API object. |
justschen
commented
Feb 6, 2026
justschen
commented
Feb 6, 2026
pwang347
reviewed
Feb 6, 2026
pwang347
reviewed
Feb 6, 2026
pwang347
reviewed
Feb 6, 2026
pwang347
reviewed
Feb 6, 2026
pwang347
previously approved these changes
Feb 6, 2026
dmitrivMS
previously approved these changes
Feb 6, 2026
pwang347
previously approved these changes
Feb 6, 2026
pwang347
approved these changes
Feb 6, 2026
daviddossett
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Feb 7, 2026
* hooks streaming first pass * Update src/vs/workbench/contrib/chat/browser/widget/chatContentParts/chatHookContentPart.ts Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * update styling * modify api shape * address some comments + do not render for now * new icons + no more continue * make sure we render right, some comments addressed * uncomment that stuffs --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
pwang347
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that referenced
this pull request
Feb 10, 2026
* hooks streaming first pass * Update src/vs/workbench/contrib/chat/browser/widget/chatContentParts/chatHookContentPart.ts Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * update styling * modify api shape * address some comments + do not render for now * new icons + no more continue * make sure we render right, some comments addressed * uncomment that stuffs --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
sbatten
pushed a commit
that referenced
this pull request
Feb 11, 2026
* Add initial hooks support (#292699) * Restructure hook execution to always go through the renderer process (#292763) * Restructure hook execution to always go through the renderer process Add output channel * cleanup * Fixes * Hooks format cleanup (#292928) * Add diagnostics for hooks (#292912) * preToolUse hook supporting "deny" (#292890) * preToolUse hook supporting "deny" * Fix tests * Simplify tests * Fix test * Add common output hook types and reorganize related code (#292961) * Add common output hook types, reorganize a bit more * test fixes * Fix extHostHooks for web (#292968) * Rename and clarify internal vs external chat hook types (#292979) * Make explicit chat hook "internal" vs "external" types * Renames * Avoid types re-export * Move to hooks/ * This * Updates for chat extension hooks (#292991) * Enhance preToolUse hook and clean up code (#293265) * Flesh out preToolUse hook * Cleanup * cleanups * Cleanup * String update (#293298) * PostToolUse hook (#293282) * Add onDidExecuteHook event to HooksExecutionService (#293279) * Add onDidExecuteHook event to HooksExecutionService * Fix MockHooksExecutionService to include onDidExecuteHook event * Extend Disposable instead of using DisposableStore * Fire onDidExecuteHook event even when no hooks are registered * Fixes * Handle multiple post/preToolUse hooks more correctly (#293517) * Improve tests * Handle multiple post/preToolUse hooks more correctly * Support OS-specific commands for hooks (#293530) * hook streaming first pass (#293514) * hooks streaming first pass * Update src/vs/workbench/contrib/chat/browser/widget/chatContentParts/chatHookContentPart.ts Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * update styling * modify api shape * address some comments + do not render for now * new icons + no more continue * make sure we render right, some comments addressed * uncomment that stuffs --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Support transcript_path on hooks (#293567) * updatedInput for PreToolUse (#293575) * Support PreCompact hook (#293581) * Support PreCompact hook * add this * Handle remote OS for hook detection (#293596) * Add common blocking behaviour for hooks (#293543) * Add /hooks slash command (#293583) * Add /hooks slash command * await * Build fix * Update configure hooks flow and supported paths (#293643) * update * updates * Update src/vs/workbench/contrib/chat/browser/promptSyntax/hookActions.ts Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * update handling * PR * test * fix test * cleanup * nit * cleanup * clean --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Don't fail hooks when missing token (#293811) * Make chatHooks proposal self contained * Add support for continue, stopReason and systemMessage for tool hooks (#294016) * Add back button to configure hooks menu (#294043) * Move PreToolUse to extension (#294042) * Move PreToolUse to extension * Migrate PostToolUse * Update handling of claude hooks config (#294187) * Add more configuration slash commands (#294231) * Move hook execution to extension (#294215) * Refactor hook execution * Fix compilation: add IExtHostHooks import, remove unused IHookResult, inline ChatRequestHooks type * Move hooks property to chatHooks proposal, sync DTS * cleanup * Remove dead hook execution code: proxy, RPC, output channel, progress events All hook execution now happens in the extension via NodeHookExecutor. HooksExecutionService is now a pure registry (registerHooks/getHooksForSession). Removed: - executeHook, setProxy, onDidHookProgress from service - IHooksExecutionProxy, IHookProgressEvent, HookAbortError, formatHookErrorMessage - hooksCommandTypes.ts, hooksTypes.ts (dead type files) - mainThreadHooks proxy setup - extHostHooksNode., extHostHooksWorker. - ExtHostHooksShape. protocol - IExtHostHooks DI registrations - ChatHooksProgressContribution - All associated test files * Remove HooksExecutionService entirely The service was only a registry for session hooks, but hooks are already passed directly on the chat request DTO. The registerHooks/getHooksForSession pattern was redundant. * Restore modelName support in chatSubagentContentPart that was accidentally removed during merge * Revert unrelated tabIndex change on chatSubagentContentPart * Remove empty hooks ext host infrastructure Delete IExtHostHooks, NodeExtHostHooks, WorkerExtHostHooks, MainThreadHooks, ExtHostHooksShape, MainThreadHooksShape - all were empty stubs after hook execution moved to extension. * Remove mainThreadHooks import from extensionHost.contribution * Fix DTS comments: env and timeoutSec are values, not implementation promises * Update hook timeout format (#294266) * Add support for disabling all hooks and use JSONC (#294234) * fix for moving hooks to extension (#294441) * fix for moving hooks to extension * fix hygiene * address comments --------- Co-authored-by: Rob Lourens <roblourens@gmail.com> Co-authored-by: Justin Chen <54879025+justschen@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Matt Bierner <12821956+mjbvz@users.noreply.github.com>
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adds specific hook part for rendering
cc @pwang347 @roblourens