PROJECT FIVE - MULTI-AGENT AND PRODUCTION HARDENING

PRACTICE LAB CONNECTION Stage 5 deliverables. A supervisor, a matcher on a cheap tier, a writer on a strong tier, model routing with a cost ledger, backoff retries, step limits on both subagents, and a completed readiness checklist. Acceptance criteria for Stage 5. First, the full batch runs end to end through the supervisor and subagents without budget or step-limit violations. Second, the deliberately reintroduced repeated-failure bug is stopped by the retry safeguard within four attempts. Third, your checklist is filled out honestly, with remaining gaps listed. Wrap-up. You now own a complete, runnable harness, built stage by stage, that touches all seven layers. Keep it as your sandbox for the prompts in every chapter, as Appendix G describes. Make a final version-control save labeled stage5.