Merge
Merge the winning agent's branch into base, archive losers, and clean up worktrees. Use when the user runs /hub:merge or asks to land the winning AgentHub result and tidy the session.
SkillSpector
MEDIUM
1 security finding detected
HIGH Memory Poisoning · Memory Manipulation 80% confidence
Match: clear history
Line 78
Skill manipulates agent memory, state, or stored context. Memory corruption can alter personality, override safety rules, or cause unpredictable behavior.
## Safety - **Confirm with user** before merging — show the diff summary first - **Never force-push** — merge is always `--no-ff` for clear history - **Archive, don't delete** — losing agents' commits are preserved via tags - **Clean worktrees** — don't leave orphan directories on disk
Protect agent memory and state from modification by untrusted content. Use read-only memory for critical instructions and validate all state changes.
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SKILL.md
# /hub:merge — Merge Winner
Merge the best agent's branch into the base branch, archive losing branches via git tags, and clean up worktrees.
## Usage
```
/hub:merge # Merge winner of latest session
/hub:merge 20260317-143022 # Merge winner of specific session
/hub:merge 20260317-143022 --agent agent-2 # Explicitly choose winner
```
## What It Does
### 1. Identify Winner
If `--agent` specified, use that. Otherwise, use the #1 ranked agent from the most recent `/hub:eval`.
### 2. Merge Winner
```bash
git checkout {base_branch}
git merge --no-ff hub/{session-id}/{winner}/attempt-1 \
-m "hub: merge {winner} from session {session-id}
Task: {task}
Winner: {winner}
Session: {session-id}"
```
### 3. Archive Losers
For each non-winning agent:
```bash
# Create archive tag (preserves commits forever)
git tag hub/archive/{session-id}/{agent-id} hub/{session-id}/{agent-id}/attempt-1
# Delete branch ref (commits preserved via tag)
git branch -D hub/{session-id}/{agent-id}/attempt-1
```
### 4. Clean Up Worktrees
```bash
python {skill_path}/scripts/session_manager.py --cleanup {session-id}
```
### 5. Post Merge Summary
Write `.agenthub/board/results/merge-summary.md`:
```markdown
---
author: coordinator
timestamp: {now}
channel: results
---
## Merge Summary
- **Session**: {session-id}
- **Winner**: {winner}
- **Merged into**: {base_branch}
- **Archived**: {loser-1}, {loser-2}, ...
- **Worktrees cleaned**: {count}
```
### 6. Update State
```bash
python {skill_path}/scripts/session_manager.py --update {session-id} --state merged
```
## Safety
- **Confirm with user** before merging — show the diff summary first
- **Never force-push** — merge is always `--no-ff` for clear history
- **Archive, don't delete** — losing agents' commits are preserved via tags
- **Clean worktrees** — don't leave orphan directories on disk
## After Merge
Tell the user:
- Winner merged into `{base_branch}`
- Losers archived with tags `hub/archive/{session-id}/agent-{N}`
- Worktrees cleaned up
- Session state: `merged`