Dart CLI
skillscore
Score your AI agent's SKILL.md, 0 to 100.
A command-line tool that lints and scores AI agent skills (SKILL.md files) against the official authoring guides from Anthropic, Google, and OpenAI. Offline, deterministic, and built to run in CI.
dart pub global activate skillscore 
198
downloads / 30 days
160/160
pub points
3
platforms
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A score and a grade
0 to 100, A to F.
Static analysis turns a SKILL.md into one quality score with a letter grade and a per-category breakdown.
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Against the real guides
Claude, Codex, and Antigravity.
Findings are checked against the official skill authoring guides from Anthropic, Google, and OpenAI, not a generic linter's opinion.
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Offline and deterministic
Same input, same score.
No network and no model calls, so it runs the same on your laptop and in CI. A passing score stays passing.
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Built for pipelines
Pretty, JSON, or SARIF.
A readable report for humans, JSON for scripts, and SARIF to surface findings in your code host, plus token-cost estimates for skill descriptions.
Get started
Add it, then call it.
dart pub global activate skillscore # Score one skill
skillscore path/to/SKILL.md
# Gate a whole folder in CI
skillscore skills/ --min-score 80 --format sarifskillscore is open source under the Apache-2.0 license.