About
Ruzzy is a coverage-guided fuzzer for Ruby that enables fuzzing both pure Ruby code and Ruby C extensions. It's built on libFuzzer and provides sanitizer support for detecting memory corruption and undefined behavior. Use it when you need production-ready fuzzing for Ruby applications, libraries, or gems with native extensions.
Quick Install
Claude Code
Recommendednpx skills add trailofbits/skills -a claude-code/plugin add https://github.com/trailofbits/skillsgit clone https://github.com/trailofbits/skills.git ~/.claude/skills/ruzzyCopy and paste this command in Claude Code to install this skill
GitHub Repository
Frequently asked questions
What is the ruzzy skill?
ruzzy is a Claude Skill by trailofbits. Skills package instructions and resources that Claude loads on demand, so Claude can perform ruzzy-related tasks without extra prompting.
How do I install ruzzy?
Use the install commands on this page: add ruzzy to Claude Code as a plugin, or clone its repository into your skills directory, then restart Claude so it picks up the skill.
What category does ruzzy belong to?
ruzzy is in the Design category, tagged ai and design.
Is ruzzy free to use?
Yes. ruzzy is listed on AIMCP and free to install. It runs inside Claude, so no separate service account is required to use the skill itself.
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