gt-merge

## What It Does Merges the pull requests associated with every branch from trunk up to the current branch, in one Graphite operation (`gt merge`). Graphite's own merge queue processes the merge; this skill previews what would merge, gets explicit confirmation, then runs it. ## When to Use - User says "merge my stack", "land these PRs", or "ship the whole stack". - The stack is fully reviewed, CI-green, and ready to land — this is a landing operation, not a submit or a sync. ## Usage ### Step 1: Preview ```bash gt log short gt merge --dry-run ``` `--dry-run` reports which PRs would merge and makes no changes. If it reports nothing to merge (no PRs in the chain are mergeable yet — not approved, CI not green, or already merged), report that and stop. ### Step 2: Confirm Show the exact PR list from Step 1's dry run. Use `AskUserQuestion`: "Merge these PRs via Graphite?" with options "Merge" and "Cancel". Never proceed without an explicit yes — this lands code. On "Cancel", stop. Nothing has run. ### Step 3: Merge ```bash gt merge -c ``` `-c`/`--confirm` asks for confirmation itself if local branches differ from remote — treat any such in-terminal prompt this produces as a second, independent safety check, not a redundant one to suppress. If it fails, report the exact error output and stop. Do not retry with a different merge method, do not fall back to `gh pr merge`, and do not attempt a partial merge by hand. ### Step 4: Report ```bash gt log short ``` Report the resulting stack state: which PRs merged, which (if any) remain open above the merge point, and the current branch's status. If Graphite's merge queue can only land the stack in consecutive groups rather than atomically (visible as PRs still open above the merged point after the operation completes), report that plainly — do not claim the whole stack landed if part of it is still queued. ## Boundaries - Never calls `gh pr merge` for a stack — Graphite owns the merge. - Never merges without the Step 2 confirmation. - Never retries a failed merge automatically.