Ruzzy

Sets up and runs Ruzzy, Trail of Bits' coverage-guided Ruby fuzzer and the only production-ready one for the language. Covers harness structure, fuzzing pure Ruby and the native C extensions in gems, and sanitizer builds. Use when fuzzing a Ruby library or gem, testing a Ruby C extension for memory safety, or asking...

Overview

Ruzzy is a SKILL.md-based agent skill sourced from trailofbits/skills. It is categorized under security and is listed for Claude Code, Claude. The source description focuses on: Ruzzy is a coverage-guided Ruby fuzzer by Trail of Bits. Use for fuzzing pure Ruby code and Ruby C extensions. AIToolly summarizes this page as a directory entry rather than copying the full third-party skill content, so users can evaluate the source, compatibility, and practical fit before installing it.

Use Cases

Evaluate Ruzzy before adding it to an AI agent workflow.
Use Ruzzy as a starting point for repeatable security tasks.
Compare Ruzzy with related skills from skills and other GitHub repositories.

Install Notes

# Review source first
open https://github.com/trailofbits/skills/blob/main/plugins/testing-handbook-skills/skills/ruzzy/SKILL.md

Copy or clone the skill folder into your agent skills directory after reviewing its instructions and scripts.

Security Notes

Review the source SKILL.md, referenced scripts, permissions, and external services before installing Ruzzy. Treat third-party skills like code dependencies, especially when they can read files, call APIs, or run commands.

Related Skills

Security And Hardening

addyosmani/agent-skills

Security

Hardens code against vulnerabilities. Use when auditing an input handler for vulnerabilities, when handling user input, authentication, data storage, or external integrations, or when checking a login flow is safe against the OWASP Top Ten. Use when building any feature that accepts untrusted data, manages user sess...

typescriptjavascript
94,159 StarsMIT

Trailmark Summary

trailofbits/skills

Security

Runs a Trailmark summary analysis on a codebase. Returns auto-detected languages, entry point count, and dependency list. Use when vivisect or galvanize needs a quick structural overview. Triggers: trailmark summary, code summary, structural overview.

Claude CodeClaude
pythonsecurity
7,069 StarsSource linked

Sarif Parsing

trailofbits/skills

Security

Parses and processes SARIF files from static analysis tools like CodeQL, Semgrep, or other scanners. Triggers on "parse sarif", "read scan results", "aggregate findings", "deduplicate alerts", or "process sarif output". Handles filtering, deduplication, format conversion, and CI/CD integration of SARIF data. Does NO...

Claude CodeClaude
pythonsecurity
7,069 StarsSource linked

Trailmark Structural

trailofbits/skills

Security

Runs full Trailmark structural analysis by building a graph, running `preanalysis()`, and reporting hotspots, taint, blast radius, privilege boundaries, attack surface, and version-gated Trailmark 0.4+/0.5+ data such as proxy counts, subgraph edges, type/reference summaries, and entrypoint attributes. Use when vivis...

Claude CodeClaude
pythonsecurity
7,069 StarsSource linked

Mermaid To Proverif

trailofbits/skills

Security

Translates Mermaid sequenceDiagrams describing cryptographic protocols into ProVerif formal verification models (.pv files). Use when generating a ProVerif model, formally verifying a protocol, converting a Mermaid diagram to ProVerif, verifying protocol security properties (secrecy, authentication, forward secrecy)...

Claude CodeClaude
securityresearch
7,069 StarsSource linked

Ossfuzz

trailofbits/skills

Security

Enrolls a project in OSS-Fuzz, Google's free continuous fuzzing service for open source, and drives it locally. Covers project.yaml, Dockerfile and build.sh setup, the helper scripts, reproducing OSS-Fuzz crash reports, and the acceptance criteria. Use when setting up continuous fuzzing for an open-source project, r...

Claude CodeClaude
pythonsecurity
7,069 StarsSource linked