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 
293
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 sarifVersions
Release history
- 0.10.0 latest Jul 15, 2026
- 0.9.0 Jul 11, 2026
- 0.8.0 Jul 4, 2026
- 0.6.0 Jun 29, 2026
- 0.3.0 Jun 15, 2026
- 0.2.0 Jun 13, 2026
- 0.1.1 Jun 12, 2026
- 0.1.0 Jun 12, 2026
Refreshed from pub.dev on each deploy. Full changelog on pub.dev .
skillscore is open source under the Apache-2.0 license.