Option A ("ask inline, session stays open") described a path where the
errand agent could ask questions without writing signal.json, which broke
the server's completion detection (checkAgentCompletionResult polls for
done|questions|error status). Remove the Option A/B distinction and make
signal.json with questions status the single mechanism for all user-input
requests, consistent with how other agents handle blocking questions.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The errand agent can now write { "status": "questions", ... } to
signal.json to pause mid-task and ask the user for clarification.
The session ends cleanly; the user answers via UI or CLI; the system
resumes the agent with their answers via sendUserMessage.
Two changes:
- buildErrandPrompt: adds "Option B" explaining the questions signal
format and the resume-on-answer lifecycle, alongside the existing
inline-question approach.
- sendUserMessage: extends allowed statuses from running|idle to also
include waiting_for_input, so agents paused on a questions signal
can be resumed when the user replies.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add a dedicated "Asking questions" section to the errand prompt so the
agent knows it can pause, ask for clarification, and wait for the user
to reply via the UI chat input or `cw errand chat`. Previously the
prompt said "work interactively" with no guidance on the mechanism,
leaving the agent to guess.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Implements three primitives needed before errand tRPC procedures can be wired up:
- agentManager.sendUserMessage(agentId, message): resumes an errand agent with a
raw user message, bypassing the conversations table and conversationResumeLocks.
Throws on missing agent, invalid status, or absent sessionId.
- writeErrandManifest(options): writes .cw/input/errand.md (YAML frontmatter),
.cw/input/manifest.json (errandId/agentId/agentName/mode, no files/contextFiles),
and .cw/expected-pwd.txt to an agent workdir.
- buildErrandPrompt(description): minimal prompt for errand agents; exported from
prompts/errand.ts and re-exported from prompts/index.ts.
Also fixes a pre-existing TypeScript error in lifecycle/controller.test.ts (missing
backoffMs property in RetryPolicy mock introduced by a concurrent agent commit).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
