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Question tool hangs in ACP mode #17920
Description
Bug Description
When OpenCode runs via ACP (Agent Client Protocol), the question tool hangs indefinitely when the LLM tries to ask the user a question.
Root Cause
In packages/opencode/src/acp/agent.ts, the handleEvent method only handles these event types:
permission.asked- forwarded to client viarequestPermissionmessage.part.updatedmessage.part.delta
The question.asked event is not handled, so when the question tool is invoked:
QuestionService.ask()publishesquestion.askedevent- A
Deferredis created to wait for the answer - No handler forwards this to the ACP client
- The tool blocks forever waiting for a response
Proposed Fix
Add a question.asked event handler in the ACP agent that:
- Converts the question options to ACP
requestPermissionoptions - Calls
connection.requestPermission()to get user input from the client - Maps the response back to question answers
- Calls the SDK's
question.reply()to unblock the tool
Impact
This affects all ACP-compatible editors (Zed, JetBrains, Neovim plugins) when the LLM tries to use the question tool.
Reacted by Toby Harris
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github-actions commentedon Mar 17, 2026
This issue might be a duplicate of existing issues. Please check:
question.askedtorequestPermission.fix(acp): handle question.asked event to prevent hanging
rekram1-node commentedon Jun 23, 2026
Automated: closing question issues.
GitHub Issues are for bug reports and feature requests only — questions / support are no longer tracked here.
If this is a bug or feature request, please open a new issue with the appropriate template.
rekram1-node commentedon Jun 23, 2026
Reopening – this was incorrectly closed by automated question-issue cleanup. Sorry for the noise.
WaterRRabbit commentedon Jun 25, 2026
+1 — we also need this. Happy to help test once #33482 / #20017 lands.
github-actions commentedon Aug 25, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.