Conflict-resolution agents (and any initiative-based agent) can write
.cw/output/signal.json inside a project subdirectory (e.g.
agent-workdirs/<name>/codewalk-district/.cw/output/) rather than the
parent agent workdir. This caused two failures:
1. spawnInternal wrote spawn-diagnostic.json before registering the
agent in activeAgents and starting pollForCompletion. If the .cw/
directory didn't exist (no inputContext provided), the write threw
ENOENT, orphaning the running process with no completion monitoring.
2. resolveAgentCwd in cleanup-manager and output-handler only probed
for a workspace/ subdirectory (standalone agents) but not project
subdirectories, so reconciliation and completion handling couldn't
find signal.json and marked the agent as crashed.
Fixes:
- Move activeAgents registration and pollForCompletion setup before
the diagnostic write; make the write non-fatal with mkdir -p
- Add project subdirectory probing to resolveAgentCwd in both
cleanup-manager.ts and output-handler.ts
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