PR and MR Workflows

Primary skill for pull request and merge request workflows across GitHub and GitLab. Covers the full lifecycle: creation, review queries, comment handling, line-specific comments, and merging. All recipes use minimal field sets for token efficiency.

Verified against gh v2.103.2 (2026-10-27): every gh subcommand and flag used here, against its --help on v2.102.0 (2026-09-30), then the pkg/cmd sources of v2.102.0 and v2.103.2 diffed (2026-10-27), since --help is generated from them: no flag of a subcommand used here changed. glab: not verified -- no pinned version yet; check glab <cmd> --help before relying on a glab flag. If gh --version is newer, read the release notes since v2.103.2 before relying on flag details. The CodeRabbit CLI pin lives in the coderabbit skill.

Context Check (Do This First)

Before starting any PR workflow, detect the current state. This determines the right action:

# Check if a PR exists for the current branch (allowlisted, zero approval)
gh pr view --json number,state,reviewDecision,reviewRequests,title 2>/dev/null