Skill Catalog Validator
Paste one SKILL.md, or several separated by a line of ===. It checks frontmatter completeness, flags descriptions that don't name a trigger, and (with more than one skill pasted) flags name collisions and description overlap high enough to cause an agent to pick the wrong skill. Nothing is uploaded.
Paste, then run. Findings appear here.
A preview of a Tessera pack
This browser demo runs a handful of checks client-side. The full skills pack catalogs a whole skills/ directory and extracts each skill's bash, MCP, and skill-to-skill dependencies too. It is one of 24 job packs in Tessera, an offline toolkit that turns a repository into a single reviewable HTML report.
Every pack follows one contract: normalize, validate, generate artifacts. No services, no API keys, no network calls, nothing executed against your code.
$ pip install tesserakit-skills
$ pipx install tesserakit-skills # isolated CLI install
$ uv tool install tesserakit-skills
$ tessera run --input . --output run
# then open run/index.html