# Ripple Log — Cycle 16

**Task**: AZ-1133 (perf gate preflight)
**Date**: 2026-06-26

## Files updated (Step 13)

| File | Change |
|------|--------|
| `scripts/run-performance-tests.sh` | Added `preflight_api_reachable` (implementation) |
| `_docs/02_document/tests/environment.md` | Preflight + exit 7 in Performance tests section |
| `_docs/02_document/deployment/containerization.md` | Preflight cross-link under perf overlay |
| `_docs/02_document/tests/performance-tests.md` | New § Preflight before PT-01 |
| `_docs/02_document/tests/traceability-matrix.md` | AZ-1133 AC-1..AC-4 rows + cycle 16 summary |

## Skipped ripples

- No module-layout / architecture / contract version bumps (tooling-only)
- No OpenAPI / blackbox scenario additions (harness preflight only)