Agent skill · Testing & QA

skill-tester

Validate, test, and score the quality of skills within the claude-skills ecosystem. Comprehensive meta-skill: structure validation, Python script testing (syntax + imports + runtime + output format), multi-dimensional quality scoring with letter grades and tier classification (BASIC/STANDARD/POWERFUL). Use when authoring a new skill, auditing existing skills for tier promotion, setting up pre-commit hooks for skill quality, or integrating skill QA into CI.

Alireza Rezvani23,369★ · +428/wk · 1 repos on radarProfile →
claude-codecodexcursorships scriptsMIT
Install
npx skills add alirezarezvani/claude-skills --skill skill-tester --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 18
SKILL.md size: 5 KB
Bundled scripts: yes
Path: engineering/skills/skill-tester/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 23,791 · +422 this week
Language: Python
Read our review of the source →

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Skill Tester **Tier**: POWERFUL · **Category**: Engineering Quality Assurance · **Dependencies**: None (Python stdlib only) Meta-skill that validates, tests, and scores skills in this repository. Four tools, run from the **repo root** with full paths: 1. **`scripts/skill_validator.py`** — structure + documentation compliance 2. **`scripts/script_tester.py`** — Python script syntax/imports/runtime/output testing 3. **`scripts/quality_scorer.py`** — multi-dimensional scoring with letter grade 4. **`scripts/security_scorer.py`** — security posture scoring (also available via `quality_scorer.py --include-security`) > **Scope note:** this skill's tier line-count minimums measure *legacy* skills. For authoring *new* skills, `engineering/write-a-skill` (SKILL.md under ~100 lines, Matt Pocock doctrine) is the binding standard — do not pad a new skill to satisfy a tier minimum here. ## Quick Start (exact, runnable from repo root) ```bash # 1. Validate structure (exit non-zero on failure — usable as a gate) python3 engineering/skills/skill-tester/scripts/skill_validator.py engineering/skills/self-eval --json # 2. Test the skill's Python scripts (30s default timeout per script) python3 engi

What's inside
Steps it walks through
  1. Quick Start (exact, runnable from repo root)
  2. What Each Tool Checks
  3. skillvalidator.py
  4. scripttester.py
  5. qualityscorer.py
  6. Tier Classification
  7. CI Integration
  8. Verification Loop
  9. Troubleshooting
Ships with 17 files
  • README.md
  • assets/sample-skill/README.md
  • assets/sample-skill/SKILL.md
  • assets/sample-skill/assets/sample_text.txt
  • assets/sample-skill/assets/test_data.csv
  • assets/sample-skill/expected_outputs/sample_text_analysis.json
  • assets/sample-skill/references/api-reference.md
  • assets/sample-skill/scripts/text_processor.py
  • expected_outputs/sample_validation_report.json
  • references/quality-scoring-rubric.md
  • references/skill-structure-specification.md
  • references/tier-requirements-matrix.md
  • scripts/quality_scorer.py
  • scripts/script_tester.py
  • scripts/security_scorer.py
  • scripts/skill_validator.py
  • tests/test_security_scorer.py
Commands it runs
python3 engineering/skills/skill-tester/scripts/skill_validator.py engineering/skills/self-eval --json
python3 engineering/skills/skill-tester/scripts/script_tester.py engineering/skills/self-eval --json
python3 engineering/skills/skill-tester/scripts/quality_scorer.py engineering/skills/self-eval --json --detailed --minimum-score 75
More from claude-skills
All skills →
About this skill
What does the skill-tester skill do?

Validate, test, and score the quality of skills within the claude-skills ecosystem. Comprehensive meta-skill: structure validation, Python script testing (syntax + imports + runtime + output format), multi-dimensional quality scoring with letter grades and tier classification (BASIC/STANDARD/POWERFUL). Use when authoring a new skill, auditing existing skills for tier promotion, setting up pre-commit hooks for skill quality, or integrating skill QA into CI.

How do I install it?

Run `npx skills add alirezarezvani/claude-skills --skill skill-tester --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From alirezarezvani/claude-skills, a repository with 23,791 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

Keep going