# libafl

> Builds custom fuzzers with LibAFL, the modular Rust fuzzing library.

Builds custom fuzzers with LibAFL, the modular Rust fuzzing library. Covers composing observers, feedbacks, mutators, schedulers, and executors into a fuzzer for targets the standard tools do not fit. Use when writing a bespoke fuzzer or mutator, fuzzing a non-standard target or architecture, implementing a fuzzing research idea, or when libFuzzer and AFL++ lack the control you need.

- Type: Skill
- Made by: trailofbits
- Category: Security
- Formats: Skills
- Version: a959c2a
- Source: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl
- Page: https://pluginboard.ai/skills/libafl-trailofbits

## Works with

- ChatGPT
- Claude
- Gemini
- GitHub Copilot
- Cursor
- Claude Code
- Codex
- Antigravity
- Gemini CLI
- Replit
- OpenClaw
- OpenCode
- Hermes Agent

## Install

### ChatGPT

In ChatGPT: Download the libafl folder and zip it, then Plugins → Skills → Create → Upload from your computer. Business and Enterprise plans.

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Claude

In Claude (web or desktop): Download the libafl folder and zip the folder itself, then upload it in Customize → Skills.

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Gemini

In Gemini: Download the libafl folder, then at gemini.google.com click Customize → Skills → Create → Upload and pick the folder (or a .zip of it).

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### GitHub Copilot

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.copilot/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Cursor

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.cursor/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Claude Code

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.claude/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

Or all of Testing Handbook Skills, in Claude Code:

```text
/plugin marketplace add trailofbits/skills
/plugin install testing-handbook-skills@trailofbits
```

### Codex

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.agents/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Antigravity

In Antigravity: Copy the libafl folder into ~/.gemini/config/skills (Antigravity app and IDE) or ~/.gemini/antigravity-cli/skills (Antigravity CLI).

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Gemini CLI

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.gemini/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Replit

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl .agents/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### OpenClaw

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.openclaw/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### OpenCode

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.config/opencode/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

### Hermes Agent

Run in your terminal:

```shell
npx -y degit trailofbits/skills/plugins/testing-handbook-skills/skills/libafl ~/.hermes/skills/libafl
```

View the folder on GitHub: https://github.com/trailofbits/skills/tree/HEAD/plugins/testing-handbook-skills/skills/libafl

---
From Pluginboard (https://pluginboard.ai).