What problem does it solve? Coordinating a release that spans multiple repositories is error-prone: PRs must open in dependency order, merges must respect upstream changes, and a failed downstream integration can silently break the train. This Skill provides the OpenCode entry point to the phase-loop run-train coordinator, which automates that entire cross-repo release flow. ## Core Features & Use Cases - Topo-ordered draft PRs: Opens draft pull requests across all train nodes in dependency order after a preflight check, stopping before any PR is opened if preflight fails. - Governed merge phase: With the --governed flag, runs train-level review, then merges upstream nodes first and re-verifies each downstream node against the upstream merged SHA before merging it. - Crash-resumable ledger: Inspects and resumes state via phase-loop train-status, skipping merged nodes, re-verifying partially merged ones, and retrying blocked nodes. - Use Case: A platform team shipping a breaking API change across five service repos defines a train roadmap with Nodes, Depends on, and Channel fields, then runs the coordinator to open all draft PRs, gather train-level review, and merge sequentially with downstream re-verification. ## Quick Start Ask the assistant to run the release train by invoking phase-loop run-train with your train roadmap file, adding the governed flag when you are ready to review and merge.
