interface:
  display_name: "Shepherd Pull Request"
  short_description: "Guard PR review, updates, stacks, and merge"
  default_prompt: "Use $shepherd-pull-request to publish with an exact lease before local review, run configured independent local passes on the published head, treat canonical remote ACCEPT as authoritative over every local result, handle blockers only when remote review has not accepted that head, and merge only when authorized and all remaining exact-head gates pass."