# Lock — 13. Next-step lock

Generated by scan_project.py — edit canon, then re-scan. Do not hand-edit this card as a source of truth.

```storyos-meta
{
  "card": "lock",
  "id": "13-next-step-lock",
  "source": "CHAPTER_30_VALIDATION_2026-09-13.md",
  "source_date": "2026-09-13",
  "authority": "user-locked decision",
  "status": "active"
}
```

Next prose task: **Chapter 31**.