flow-debug

One-command debugging pipeline: debug-root-cause → [checkpoint: confirm the diagnosis] → build-tdd (regression test proves the fix) → review-adversarial → review-gate when configured → ratchet the escape. One checkpoint at the confirmed root cause — a wrong diagnosis reviewed and shipped is the expensive failure mode. Never declares fixed without the repro flipping from fail to pass; artifacts (repro command, causal chain, test, verdicts) hand forward between stages. Also installs: debug-root-cause, build-tdd, review-adversarial, review-ratchet, efficient-orchestration.