Ruzzy is a coverage-guided Ruby fuzzer by Trail of Bits. Use for fuzzing pure Ruby code and Ruby C extensions.
Installation
$skills install @trailofbits/ruzzy
Claude Code
Cursor
Copilot
Codex
Antigravity
Details
Repositorytrailofbits/skills
Pathplugins/testing-handbook-skills/skills/ruzzy/SKILL.md
Branchmain
Scoped Name@trailofbits/ruzzy
Usage
After installing, this skill will be available to your AI coding assistant.
Verify installation:
skills listMore by trailofbits
View allfuzzing-dictionary
1,280Fuzzing dictionaries guide fuzzers with domain-specific tokens. Use when fuzzing parsers, protocols, or format-specific code.
fuzzing-obstacles
1,280Techniques for patching code to overcome fuzzing obstacles. Use when checksums, global state, or other barriers block fuzzer progress.
harness-writing
1,280Techniques for writing effective fuzzing harnesses across languages. Use when creating new fuzz targets or improving existing harness code.
coverage-analysis
1,280Coverage analysis measures code exercised during fuzzing. Use when assessing harness effectiveness or identifying fuzzing blockers.
