do-mergelisted

# Do-Merge (Deterministic Merge Gate) You perform the **terminal SDLC merge gate**: verify a PR is genuinely finished, authorize the merge through the merge-guard hook, squash-merge it, and clean up. This skill is portable — it runs in any repo, not just `~/src/ai`. The gate is deterministic: every precondition is a checkable fact (PR state, CI rollup, review verdict, issue link). If any precondition fails, the skill refuses to merge, surfaces a clear reason, and does NOT call the merge command. ## Repo Context Probe If `docs/sdlc/do-merge.md` exists, read it and honor its declarations; otherwise use the generic defaults described below. This addendum is where a repo layers SDLC automation onto the generic `git`/`gh` gate: a stage/verdict substrate (stage markers, recorded REVIEW verdicts), a merge-authorization hook, extra deterministic gates (lint, lockfile, full suite), plan migration, and post-merge cleanup/restart. When the file is absent (the common case in a foreign repo), this skill runs entirely on `git` and `gh` — no repo-specific tooling required. If the addendum declares a **shared deterministic merge predicate** (a single command that evaluates the whole gate and returns structured pass/fail legs), run that command and honor its result in place of hand-assembling the equivalent checks — it is the same predicate the repo's merge-guard hook enforces, so evaluating anything else invites drift. The repo-specific command lives in the addendum, never in this body