Layered safety so the Skills Hub at /docs/skills stays in sync without
silent rot. Three pieces:
1. build_skills_index.py — refuses to ship a degenerate index.
EXPECTED_FLOORS per source (skills.sh ≥100, lobehub ≥100, clawhub ≥50,
official ≥50, github ≥30, browse-sh ≥50) and MIN_TOTAL=1500. Any source
collapsing to zero (the silent OpenAI breakage that hid for weeks) now
fails the workflow loud — broken index never reaches the live site.
2. extract-skills.py + the React page — visible freshness signal.
Sidecar website/src/data/skills-meta.json carries the index's
generated_at timestamp, plus per-source counts. Skills Hub renders a
'Catalog refreshed N hours ago · auto-rebuilt twice daily' line under
the hero copy. If the cron stalls, users see the staleness immediately.
3. .github/workflows/skills-index-freshness.yml — watchdog cron.
Every 4 hours, fetches the live /docs/api/skills-index.json, validates
shape, checks age (>26h is stale), checks the same per-source floors,
and opens (or appends to) a GitHub issue when anything is off. The
issue is title-prefixed [skills-index-watchdog] so subsequent failures
append a comment instead of spamming new issues.
Net effect:
- A silent regression like 'OpenAI tap moved its skills' now fails the
build instead of shipping a quietly broken catalog.
- A stuck cron (like the landingpage breakage that ran red for weeks) now
files an issue within 4 hours.
- Users see how fresh the catalog is on the page itself.
Test plan:
- Local: built skills-meta.json from the live index → 'Catalog refreshed
N minutes ago' rendered correctly in the static HTML.
- Probe logic dry-run against the live index: total=2456, all 6 sources
above floor, age 0.1h — issues=NONE.
- Triggered skills-index.yml manually; both jobs green, deploy-site.yml
dispatch fired.
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