Ruzzy

**[Fuzzing pure Ruby code](https://github.com/trailofbits/ruzzy#fuzzing-pure-ruby-code)**

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LLM Evaluation

Evaluated by: xiaomi/mimo-v2-flash:free

Last evaluated: March 29, 2026

Prompt Quality

3.0 /5

Evaluation error: RetryError[]

Usefulness

3.0 /5

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Overall Rating

3.0 /5

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---
name: ruzzy
type: fuzzer
description: >
  Ruzzy is a coverage-guided Ruby fuzzer by Trail of Bits.
  Use for fuzzing pure Ruby code and Ruby C extensions.
---

# Ruzzy

Ruzzy is a coverage-guided fuzzer for Ruby built on libFuzzer. It enables fuzzing both pure Ruby code and Ruby C extensions with sanitizer support for detecting memory corruption and undefined behavior.

## When to Use

Ruzzy is currently the only production-ready coverage-guided fuzzer for Ruby.

**Choose Ruzzy when:**
- Fuz...

Full prompt length: 11936 characters

Tools & Technologies

• Ruby
• ruby