maestro-merge

name	maestro-merge
description	Merge session worktree branch back to main Arguments: --session <session_id> [--force] [--dry-run] [--no-cleanup] [--continue]
allowed-tools	Read Write Edit Bash Glob Grep teammate observe maestro
disable-model-invocation	true
session-mode	none

<teammate_contract>

• background: false is the default. Use foreground dispatch whenever the result determines the current answer or next action.
• Use background: true only for independent work. If this turn must consume a background result, call observe exactly once with action: "wait" and a bounded timeout before continuing; never continue independently while the result is pending.
• Otherwise end the turn and wait for the automatic teammate-complete notification. Do not rely on SendMessage, team_msg, or hook callbacks as completion signals.
• Never silently ignore an unfinished dispatch.

</teammate_contract>

<required_reading> ~/.maestro/workflows/run-mode.md </required_reading>

Merge a session worktree branch back into main, sync Run artifacts, and reconcile the artifact registry. Two-step: git merge first, artifact sync second (only after git succeeds). $ARGUMENTS -- session ID (or slug) and optional flags.

Terminology: this command uses 'session' throughout. The underlying workflow file (merge.md) may use 'milestone' as a legacy alias for 'session'. Treat them as equivalent: --session maps to workflow's -m, state.json.sessions[] maps to state.json.milestones[].

Flags (--session, --force, --dry-run, --no-cleanup, --continue), merge sequence, artifact sync detail, and conflict handling are defined in workflow merge.md.

Follow '~/.maestro/workflows/merge.md' completely.

--dry-run short-circuit: execute GATE 1 health check only, display merge preview (files that would change, artifact sync plan), then EXIT before rebase/merge. GATE 2 and GATE 3 are not reached.

Gates (MANDATORY, BLOCKING)

GATE 1: Pre-merge → Git Merge

• REQUIRED: Registry health check completed (stale entries cleaned or flagged).
• REQUIRED: Pre-merge rebase successful (worktree has latest main).
• REQUIRED: worktree state.json schema version matches main state.json version. If mismatch → W004 (suggest running maestro-update in worktree first).
• BLOCKED if rebase has conflicts: resolve in worktree first (W003).

Note on --force: skips user confirmation for incomplete phase artifacts (W002). Does NOT skip conflict resolution or rebase. Specifically: GATE 1 and GATE 2 are unaffected by --force; GATE 3's artifact completeness check uses --force to bypass the W002 confirmation.

GATE 2: Git Merge → Artifact Sync

• REQUIRED: Git merge completed without conflicts (or conflicts resolved via --continue).
• BLOCKED if: merge has unresolved conflicts — do NOT sync artifacts until git merge succeeds (prevents partial state corruption).

GATE 3: Artifact Sync → Completion

• REQUIRED: All Run artifacts synced to main sessions/{session_id}/runs/.
• REQUIRED: Artifact registry reconciled (worktree entries merged into main).
• REQUIRED: Worktree cleaned up OR --no-cleanup flag present.
• BLOCKED if missing: artifacts not synced or registry not reconciled — main worktree would have incomplete state.

### Knowledge inquiry

After successful merge, use [@ask] user prompt to confirm knowledge persistence:

question: "Merge 完成。是否记录本次工作经验教训？"
options:
  - label: "记录经验"
    description: "通过 maestro-spec add 持久化此次工作的关键洞察"
  - label: "跳过"
    description: "不记录，直接完成"

User selects "记录经验" → prompt for title/insight, then recommend /maestro-spec add learning "<title>" "<insight>" --keywords <kw1>,<kw2> --description "<summary>". User selects "跳过" → proceed to next-step routing.

Next-step routing

Condition	Suggestion
Next dep-ready session	route step analyze through /maestro-next or the canonical receipt-chained session open -> session chain insert --command analyze --arg "<goal>" -> run next flow

<error_codes>

Code	Severity	Condition	Recovery
E001	error	Running inside a worktree	Run from main worktree
E002	error	No worktree registry found	Nothing to merge
E003	error	--continue but no merge state	Start fresh merge
E004	error	No session ID provided	Provide --session <session_id>
W001	warning	Stale registry entries found	Auto-cleaned
W002	warning	Incomplete artifacts (without --force)	Confirm or use --force
W003	warning	Conflict pulling main into worktree	Resolve in worktree first
W004	warning	Schema version mismatch between worktree and main	Run maestro-update in worktree before merge
</error_codes>

<success_criteria>

• Registry health check passed (stale entries cleaned)
• Pre-merge rebase successful (worktree has latest main)
• Git merge completed without conflicts (or conflicts resolved via --continue)
• All Run artifacts synced to main sessions/{session_id}/runs/
• Artifact registry reconciled (worktree entries merged into main)
• Session lifecycle updated (forked_from cleared)
• Worktree removed and branch deleted (unless --no-cleanup)
• worktrees.json registry updated (entry removed)
• worktree-scope.json removed from worktree (even with --no-cleanup, to prevent stale scope detection) </success_criteria>