Ship

Get the branch onto main. Two paths: PR (CI up) or local merge (CI down).

Announce: "Using /ship to integrate this branch."

Prerequisites

1. On a feature branch (not main).
2. /review (Step 6) passed, or user explicitly approved.
3. Worktree path is known (needed for cleanup).
4. No pending tasks. Run TaskList (Claude Code) or check .branch-context.md checklist (Codex). If any step is still pending or in_progress, that step was skipped — go back and complete it before shipping.

If any prerequisite is missing, say which and stop.

Step 1: Validate