task-finishlisted

# Finish a task (open the PR) Idempotent finish: push the branch, check for an existing PR first, and only then run the **task-finish** recipe as ONE deterministic call. Local git is YOUR job; provider truth is Baron's. ## Steps 1. **Identify the work item + branch**: parse the current branch (`git rev-parse --abbrev-ref HEAD`) as `<prefix>/<id>-<slug>` and extract `<id>`. If the branch doesn't match, ask — never open a PR from a non-work-item branch without confirming. 2. **Preflight local git**: `git status --porcelain` — dirty tree → stop (commit/stash first). Then **push**: `git push -u origin HEAD` (never `--force`; on a non-fast-forward reject, explain the rebase path and stop). 3. **Idempotency check** — call `baron_scm_read op=pr_for_branch` with the branch: - **PR exists** (non-null): do NOT create another. Report its URL, and add a `baron_scm_write op=pr_thread` note only if there is genuinely new context (new commits since). - **null**: continue. 4. **Compose the PR description — never open an empty PR.** A reviewer should not have to reconstruct the change from the diff. Write it from what you actually have: the work item (`baron_issue_read op=get`) plus the real commits/diff on the branch (`git log <base>..HEAD --oneline`, `git diff --stat`). Cover, briefly: - **What changed** — the substance, not a file list. - **Why** — the problem from the item; call out any decision you made along the way. - **How it was verified**