Imported from skillscatalog/registry (
skills/skill-safety-scanner/SKILL.md). Install upstream withnpx skills add skillscatalog/registry --skill skill-safety-scanner. Copyright stays with the author (MIT).
Instructions
Use this skill to run safety scans on any Agent Skill directory before publishing. The scanner detects:
- Secrets - Hardcoded API keys, tokens, passwords, private keys
- Dangerous Code - eval(), exec(), command injection, XSS patterns
- Permissions - Required capabilities (filesystem, network, subprocess, etc.)
When to Use
- Before submitting a skill for publication
- To preview what the catalog safety scan will find
- To identify and fix security issues early
- As part of CI/CD pipelines
How to Use
Scan a skill directory:
Scan the skill at /path/to/my-skill for safety issues
Get detailed output:
python3 safety_scan.py /path/to/my-skill --verbose
Get JSON output for CI integration:
python3 safety_scan.py /path/to/my-skill --json
Output
Safety Scan Report
Skill: my-skill
Grade: B (85/100)
Scores:
Secrets: 100/100
Dangerous Code: 70/100
Permissions Detected:
- filesystem
- network
Findings (1):
[medium] Potential command injection
File: scripts/main.py:42
Code: subprocess.run(cmd, shell=True)
Recommendation: Review the finding above before publishing.
Examples
Basic scan:
User: Scan my skill at ./document-tools for safety issues
Agent: Running safety scan on ./document-tools...
Grade: A (95/100)
No critical issues found.
Finding secrets:
User: Check ./my-api-client for security issues
Agent: Running safety scan...
Grade: F (0/100)
Findings:
[critical] Hardcoded API key detected
File: config.py:5
Code: API_KEY = "sk-ant-..."
You must remove this secret before publishing.
Limitations
- Does not scan dependencies (use npm audit / pip-audit separately)
- Pattern-based detection may have false positives
- Cannot detect all security issues (not a replacement for security review)
- Scans local files only (not GitHub URLs)
Dependencies
- Python 3.9+
- No external dependencies (uses Python stdlib)
