PHASE 6
Integrations
AGENTS
Stark (lead)
WHAT HAPPENS
External services: payments, email, file storage, APIs. Each gets a client wrapper, test mode, and error handling.
Skip condition: This phase is skipped when the PRD frontmatter sets payments: none, workers: no, email: none.
VERIFICATION GATE
This phase must pass its gate before proceeding to the next. Both manual verification and automated checks are required. Gate failure stops the build — no exceptions.