PR Swarm — Parallel Own-PR-to-Green Loops

Parallelizes two or more independent "own PR to green" loops for a single repository using isolated git worktrees and separate headless Claude Code sessions per PR — resolving merge conflicts, clearing review feedback, and watching CI to completion without one PR's diff or feedback leaking into another's context. Triggers on: "parallelize these PRs", "drive PR #123 and #456 to green in parallel", "own-PR-to-green fleet", "run these PRs concurrently", "isolated worktree loops for my PRs", "pr-swarm". Use this skill when a user has two or more already-open, file-disjoint pull requests in the same repository that each need conflict resolution, review-feedback triage, and CI …