Branch Finish Checklist

The gap between 'the code works' and 'this branch is safe to merge' is where teams bleed quality — the migration that wasn't tested against production data size, the edge case the happy path didn't cover, the environment variable nobody added to the deployment docs. This skill runs your branch through a structured pre-merge checklist calibrated to your specific change: tests that need to pass, manual verification steps, deployment considerations, rollback plan, and documentation updates. It doesn't generate a generic checklist — it reads your diff and your context and tells you what this branch specifically needs before it merges. Use it when you're about to open the PR and want to catch what you missed before your reviewer does. Give it your changes, your stack, and what you've already verified; it returns the gaps.