harness-writing
No security findings. Scanned 1 time, most recently 2026-02-08.
Second scanner: NVIDIA SkillSpector
SkillSpector found no issues but could not fully inspect the package, usually because SKILL.md refers to a file that is not present, so it fails closed to CAUTION instead of SAFE. Read it as "not fully checked", not as a finding. How the two scanners compare across the whole corpus: Two scanners, one corpus.
What this skill does
Techniques for writing effective fuzzing harnesses across languages. Use when creating new fuzz targets or improving existing harness code.
- Package
- 1 file, 20 KB
- SKILL.md
- 2708 words, 12+ sections
- Code
- None. Instructions only.
SKILL.md covers: Writing Fuzzing Harnesses · Overview · Key Concepts · When to Apply · Quick Reference · Step-by-Step · Step 1: Identify Entry Points · Step 2: Write Minimal Harness · Step 3: Add Input Validation · Step 4: Structure the Input · Step 5: Test and Iterate · Common Patterns
Findings
No findings. SAFE
What is in the package
| File | Kind | Size |
|---|---|---|
SKILL.md | doc | 20 KB |
External hosts referenced
github.com llvm.org rust-fuzz.github.io www.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.
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-harness-writing-scan.json
- Badge for your README:
- Request a re-scan