Coordinates a multi-ticket epic (a Jira/GitLab epic, or a GitHub issue whose child issues are the tickets). Builds the dependency graph and parallel wave schedule, routes each workable ticket to a background agent or its own session, re-verifies what unblocked as tickets finish, and runs the repo's PR merge gate when its CLAUDE.md defines one. Use when the user wants to parallelize an epic without breaking dependencies, asks what is unblocked now, or wants a resident coordinator for the epic. Not for a single ticket (fast-feature) or for picking one best task (best-roi-task).