What problem does it solve? Wrapping up a finished development phase often loses decisions, follow-ups, and test evidence in chat scrollback, and half-finished work gets merged without verification. This Skill enforces a gated close-out: every story must be done, a retrospective is compiled from artefacts, follow-ups are filed, and the phase branch merges to main only after all gates pass. ## Core Features & Use Cases - Hard done-gate: Verifies every story in the target phase is marked done, aborting with a list of gaps if any are incomplete. - Artefact-derived retrospective: Compiles what shipped, what went well, metrics (bugs, ADRs, lanes), plus a recalled section from the retro ledger via retro-report.js. - Follow-up capture: Files BACKLOG items for tech debt and backstops missing ADRs so no decision is lost. - Gated integration: Detects already-merged branches via git ancestry, enforces a four-item merge gate (stories done, lint green, tests green, clean tree), then opens a PR or performs a gated direct merge, logging the approval to APPROVALS.md. - Use Case: After an execute-batch run finishes all stories in EPIC-12, ask to close the phase; the Skill writes the phase report to 41-Reports/phases/, updates MONITOR.md and the dashboard, and surfaces a PR link for the merge to main. ## Quick Start Close the phase for EPIC-12 now that all its stories are done, including the retrospective, board update, and gated merge to main.