Loading skill
Install any skill in seconds. Free to start, no credit card required.
Get Started Free →gotalab/skill-evaluator
Evaluates agent skills against Anthropic's best practices.
Passed 18 of 22 test cases with the skill, and 10 of 22 without it.
and 9 more in the full report
9 fixed9 passed either way3 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
If a supplementary reference file in a skill repository exceeds a certain length, what structural organization requirement is triggered?
| Checked | Without skill | With skill |
|---|---|---|
| Requires a table of contents for reference files exceeding 100 lines. | Missed | Passed |
The instructions your model reads when the skill loads.
Evaluates skills against Anthropic's official best practices for agent skill authoring. Produces structured evaluation reports with scores and actionable recommendations.
scripts/validate_skill.py <skill-path>Run the validation script first:
scripts/validate_skill.py <path/to/skill>
This checks:
Evaluate each dimension and assign a score (1-5):
| Score | Criteria |
|---|---|
| 5 | Gerund form (-ing), clear purpose, memorable |
| 4 | Descriptive, follows conventions |
| 3 | Acceptable but could be clearer |
| 2 | Vague or misleading |
test cases passed, vs 10 / 22 without
Published skills whose descriptions closely match this one, with their headline benchmark lift.
More skills from the same source and nearby in the registry, with their headline benchmark lift.