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B
Usable, but review first — and it is token-heavy
Safety grade
B
76/100 · gate: review
Token cost
6,582
3.2× median
Efficacy
—
Not yet measured
What it claims to do
Use when creating new skills, editing existing skills, or verifying skills work before deployment
What we found · 2
- Bloated: high token costmedium~6,582 tokens on every single call. Compress instructions and trim examples.
- Embedded shell script blockmediumShips runnable command-line scripts. Not necessarily bad, but must be sandboxed and reviewed.
Conflicts with · 8
| xlsx | shadow | edit, exist |
| docx | shadow | edit |
| brainstorming | shadow | work |
| finishing-a-development-branch | shadow | work |
| verification-before-completion | shadow | work |
| skill-creator | overlap | new, exist, edit |
| frontend-design | overlap | new, exist |
| cloudflare-one | overlap | work, deployment |
If you have both installed, they compete for the same triggers — the top cause of an agent picking the wrong skill.
Have you installed writing-skills? Scan everything you run.
One command grades every skill in your Claude Code / Codex — safety, token bloat, and conflicts, 100% locally.
npx skillmoo scan
Grade computed 2026-07-13 · rubric static-v1. Efficacy shown only when measured on a labeled model + task suite — never invented.
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Does this rating match your experience with writing-skills?
Anonymous & aggregate. We watch these as a trend and re-check flagged skills — a single click never moves a grade on its own.
Independent static analysis by SkillMOO — the Consumer Reports for agent skills. Safety, token, and conflict grades are computed, not opinions. Efficacy is only ever claimed when measured. We rate & link to the source; we do not rehost skill content.