21 skills you probably shouldn't install — sitting in repos with 1,000+ stars.
D and F-grade SKILL.md files SkillOx has indexed in the public catalog, filtered to popular repos. Updated as the catalog moves. Subscribe via /feed/critical.xml to get every new F-grade in your reader.
The credibility check.
Skills graded D or F living in repos with at least 1,000 stars. These are the cases that matter — "the audit thinks it's bad" lands harder when the repo is the kind your team would install from on a Friday afternoon.
Concentrated failure modes.
Repos shipping multiple skills graded D or F. Often a single author with a consistent anti-pattern across siblings.
Freshly discovered.
F-grade skills scanned in the last seven days. Same data as /feed/critical.xml — newest first.
Skills people actually re-check.
Total scan count across all sources — anonymous web scans + creator re-scans + crawler re-passes. The closest thing the catalog has to a revealed-preference signal.