Update an existing handoff document with this session's progress.
Step 1: Resolve the handoff file
Determine which file to update, in this priority order:
- If
$ARGUMENTS[0]was provided, use it as the file path. - If this session was started via
/handoff:resume, look in conversation history for the argument that was passed to it. - If neither is found, fall back to creating a new file:
claudedocs/handoffs/handoff_YYYYMMDD_HHMMSS.md. Inform the user that no existing handoff was found.
Step 2: Read the existing file
Read the resolved file completely. Parse all sections as the baseline for the merge.
Step 3: Apply section merge rules
Rewrite the file with updated content using these merge rules:
| Section | Rule | Notes |
|---|---|---|
| Task | Keep original | Update only if scope fundamentally changed |
| Scope | Keep or refine | Narrow it if new understanding emerged |
| Files | Merge | Add new files touched in this session. Keep originals. Use path:line format |
| Discoveries | Append | Add new findings below existing list. Never remove prior discoveries |
| Work Done | Append only | Add new completed items below existing list. Never remove entries. Include commit hashes |
| Status | Replace | Write the current state: what is done now, what remains, test status |
| Next Steps | Replace | Write the updated actionable checklist |
| Code | Update | Replace with the most relevant snippets from the current state |
The append-only rule for Work Done is strict. Even if a previous entry describes work that was later revised, keep it. The history is the record. Add a new entry describing the revision instead of removing the old one.
Step 4: Confirm
After saving, confirm:
- File path updated
- How many new Work Done items were added
- The updated Status (one line)
- How many Next Steps remain
This command implements the Handoff Triad pattern documented in this guide's Session Handoff Pattern section. Template inspired by Packmind's handoff commands (Apache 2.0).