testing-handbook-generator
Verdict safe, but 3 findings (2 medium, 1 low), mainly transitive trust abuse, policy violation. Most recent scan 2026-02-08.
Second scanner: NVIDIA SkillSpector
The two scanners disagree: Cisco found nothing and SkillSpector says do not install. One of them has a blind spot here; read the skill before trusting either. How the two scanners compare across the whole corpus: Two scanners, one corpus.
What this skill does
Meta-skill that analyzes the Trail of Bits Testing Handbook (appsec.guide) and generates Claude Code skills for security testing tools and techniques. Use when creating new skills based on handbook content.
- Package
- 8 files, 102 KB
- SKILL.md
- 1820 words, 12+ sections
- Code
- None. Instructions only.
SKILL.md covers: Testing Handbook Skill Generator · When to Use · Handbook Location · Workflow Overview · Scope Restrictions · Quick Reference · Section → Skill Type Mapping · Skill Candidate Signals · Exclusion Signals · Decision Tree · Two-Pass Generation (Phase 3) · Pass 1: Content Generation (Parallel)
Findings
MEDIUM TRANSITIVE TRUST ABUSE detected by YARA Transitive Trust Abusestatic
Detects skills that delegate trust to untrusted external content: run scripts
SKILL.md:238
- [ ] `README.md` Skills Cross-Reference graph updatedMEDIUM TRANSITIVE TRUST ABUSE detected by YARA Transitive Trust Abusestatic
Detects skills that delegate trust to untrusted external content: run scripts
SKILL.md:256
| [testing-handbook-skills](plugins/testing-handbook-skills/) | Meta-skill that generates skills from the Testing Handbook | Paweł Płatek |LOW Skill does not specify a license Policy Violationstatic
Skill manifest does not include a 'license' field. Specifying a license helps users understand usage terms.
SKILL.md
What is in the package
| File | Kind | Size |
|---|---|---|
SKILL.md | doc | 14 KB |
agent-prompt.md | doc | 10.0 KB |
discovery.md | doc | 15 KB |
testing.md | doc | 16 KB |
templates/domain-skill.md | doc | 16 KB |
templates/fuzzer-skill.md | doc | 10 KB |
templates/technique-skill.md | doc | 12 KB |
templates/tool-skill.md | doc | 8.9 KB |
External hosts referenced
github.com semgrep.dev vimeo.com www.youtube.com youtube.com
Hostnames that appear in the skill's files. Referencing a host is not a finding; compare against the findings above and the skill's stated purpose.
Environment variables referenced
SKILL_DIR
Package contents recorded 2026-10-22 at commit a50696e20581. The scan above ran against the version current at scan time; the two can differ if the skill has since been updated.
What we checked
- Static analyzer. Pattern rules over SKILL.md and bundled files: known-bad commands, exfiltration URLs, secrets, obfuscation.
- Llm analyzer. A language model reads the skill and reports intent-level issues the rules cannot express.
- Meta analyzer. A second model pass that validates, deduplicates and re-scores the other analyzers' findings.
What we did not check
- Runtime behaviour. The skill was not executed; findings come from reading its files.
- Anything fetched at install or run time, including remote scripts, package dependencies, and URLs the skill tells the agent to open.
- Content the analyzers cannot read: images, binaries, and some non-English text.
- Known scanner bypass classes. See the methodology and limitations page.
Sources
- Repository: https://github.com/trailofbits/skills
- Raw scan result: plugins-testing-handbook-skills-skills-testing-handbook-generator-scan.json
- Badge for your README:
- Request a re-scan