Fuzz Environment Runner

SkillFiles & storage

Sets up Python virtual environments using uv for each library, installs dependencies from project configuration files, and executes the fuzzer for a specified duration with proper log redirection.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Fuzz Environment Runner skill

What this skill tells your AI

The instructions your AI receives, as published by openlair/openskill in tasks-evolved/setup-fuzzing-py/environment/skills/evo-fuzz-env-runner/SKILL.md and read by ahel’s review.

Sets up isolated Python virtual environments using uv, installs library dependencies and atheris, runs fuzz.py with LibFuzzer flags, and captures output to fuzz.log.

Workflow

  1. Create .venv using uv venv .venv in each library directory
  2. Install atheris and library dependencies via uv pip install
  3. Run fuzzer with -max_total_time=10 flag
  4. Capture stdout+stderr to fuzz.log

Key Functions

  • setup_venv_with_uv(lib_path) - Create virtual environment
  • install_dependencies(lib_path, venv_path) - Install deps and atheris
  • run_fuzzer_with_timeout(lib_path, timeout_seconds=10) - Run fuzzer and log output
  • capture_fuzz_log(lib_path) - Read fuzz.log contents

Usage

import sys
sys.path.insert(0, '/app/environment/skills/evo-fuzz-env-runner/scripts')
from runner import setup_venv_with_uv, install_dependencies, run_fuzzer_with_timeout

venv = setup_venv_with_uv('/app/arrow')
install_dependencies('/app/arrow', venv)
run_fuzzer_with_timeout('/app/arrow', timeout_seconds=10)

Signals

GitHub stars
91
Forks
4
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
evo-fuzz-env-runner
Source
github.com/openlair/openskill