Read repos and inspect GitHub Actions through the Platform MCP, read-only, via the user's org VCS link: vcs_* (list_vcs_links, vcs_list_repos/refs/files, byte-paginated vcs_read_file) and github_actions_* (list_workflows/list_runs/get_run/list_run_jobs/get_job_logs). Covers selecting a VCS link, reading historical workflow YAML at a run's commit_sha, byte-paginated log reads, and self-hosted-runner cross-correlation into the cluster. Trigger on "why did the CI run fail", "read the workflow YAML", "get job logs", "what ran at that commit", "list the repo's branches/files", "self-hosted runner died", or repo/CI inspection without local git.