Agents no longer commit task files, so when an agent safe-exits:
- Agent notifies coordinator with detailed blocking message (what happened, what was tried, suggested fix)
- Agent commits any partial source code progress and pushes
- Coordinator updates task file on main with status: blocked and the reason
- Coordinator attempts resolution, spawns new agent if resolved
Also removed stale 'task file conflicts' from merge workflow since
agents no longer commit task files.
Agents no longer commit task files (tasks/*.md) to their feature branches.
This eliminates the highest-frequency merge conflict category (parallel
agents committing metadata to the same file set). The coordinator updates
task status on main after merging source code changes.
Implementation specialist changes:
- Removed 'Update Task' workflow step (status/summary updates)
- Completion summary now included in worktree notify message
- Simplified Safe Exit (no task file commit step)
- Added 'do not commit task files' instruction to commit step
Coordinator changes:
- Added Task File Handling section with coordinator ownership model
- Updated spawn prompt template to include task file convention
- Added post-merge task status update step
