SkillEvaluator: An open-source tool that checks AI agent skills and measures their effect on task results.
What problem it solves
AI agent skills need to be checked for quality, security, duplication, and their actual effect on agent behavior. Static checks alone cannot establish whether guidance improves task results, so evaluation must also support live comparison with and without a skill.
Key features
Three-tier evaluation pipeline — Independent tiers validate skill safety and structure, detect overlapping guidance, and evaluate skill impact through live agent runs.
Source: README
CI quality gates — Repository teams can run quality checks, security scanning, and reporting in GitHub or GitLab without importing evaluator code.
Source: README, ci
Semantic overlap detection — The deduplication tier can examine repetition within a skill and compare guidance across a skill catalog.
Source: README
Live agent evaluation — The live tier runs supported agents in a sandbox and compares task outcomes to determine whether a skill helps the agent.
Source: README
Evaluation dataset generation — Broader live coverage can be created with generated evaluation cases, including fuller datasets for teams reviewing their tests.
Source: README, src
Quick start
Copied verbatim from the project's README.
pip install --upgrade skillevaluator
skillevaluator ci inituv run --python 3.13 skillevaluator quality-check \
src/skillevaluator/tier3/reference_skills/text-analyzer \
-r cli -r json -o reports/first-qualityuv run --python 3.13 --extra tier3 skillevaluator tier3 create-eval-dataset ./my-skill --fullWho it may suit
This may suit teams that maintain AI agent skills and want repository-level quality checks, as well as evaluators studying how skill guidance changes agent behavior.
Topics to discuss
Which quality gates should be mandatory in a shared skill repository?
How should semantic overlap be measured across related agent skills?
What live evaluation cases provide useful coverage without making maintenance excessive?
Written by ReadmeX AI from the project's README, source and public GitHub data; it may contain mistakes.
Read the original README https://github.com/NVIDIA/SkillEvaluator#readme
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