Auto-sync generation failure (d33af89)

Auto-sync generation failed for docs SHA `d33af897d1454e39241391f9b7ead48e69c37789`.

Opened automatically by `.github/workflows/generate.yaml`. Check the [workflow run](https://github.com/HarperFast/skills/actions/runs/34849842987) for the full error.

**Common causes and fixes (Story 4 in docs/plans-archive/docs-driven-skills.md):**
- Source file renamed or moved — update `sources[].path` in `rules.manifest.yaml`.
- Section heading renamed or removed — update `sources[].section`.
- Must-cover assertion no longer in source — update `must_cover` or the section changed.
- Regeneration dropped a fact its sources still document — the model restructured a
rule and lost content. Re-run generation, or if the removal is correct, record it
under `rules[].allow_dropped` in the manifest.

After fixing, regenerate locally (`npm run generate -- --docs-path `) and open a fix PR.

Start with .github/workflows/generate.yaml and the linked workflow run, then inspect rules.manifest.yaml alongside the affected documentation sources. Check paths, sections, must_cover, and allow_dropped entries described in docs/plans-archive/docs-driven-skills.md; run npm run generate -- --docs-path and confirm generation succeeds before opening a fix PR.

Written by the indexing model from the issue text.