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atheris

Atheris is a coverage-guided Python fuzzer based on libFuzzer. Use for fuzzing pure Python code and Python C extensions.

Packaged view

This page reorganizes the original catalog entry around fit, installability, and workflow context first. The original raw source lives below.

Stars
3,676
Hot score
99
Updated
March 20, 2026
Overall rating
A8.3
Composite score
6.9
Best-practice grade
B81.2

Install command

npx @skill-hub/cli install trailofbits-skills-atheris

Repository

trailofbits/skills

Skill path: plugins/testing-handbook-skills/skills/atheris

Atheris is a coverage-guided Python fuzzer based on libFuzzer. Use for fuzzing pure Python code and Python C extensions.

Open repository

Best for

Primary workflow: Ship Full Stack.

Technical facets: Full Stack.

Target audience: Development teams looking for install-ready agent workflows..

License: Unknown.

Original source

Catalog source: SkillHub Club.

Repository owner: trailofbits.

This is still a mirrored public skill entry. Review the repository before installing into production workflows.

What it helps with

  • Install atheris into Claude Code, Codex CLI, Gemini CLI, or OpenCode workflows
  • Review https://github.com/trailofbits/skills before adding atheris to shared team environments
  • Use atheris for development workflows

Works across

Claude CodeCodex CLIGemini CLIOpenCode

Favorites: 0.

Sub-skills: 0.

Aggregator: No.

atheris | SkillHub