# Libfuzzer

> Fuzzing with libFuzzer for finding vulnerabilities in code.

- Skill: `plurigrid/libfuzzer` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add plurigrid/libfuzzer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/plurigrid/libfuzzer/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: AGPL-3.0
- Author: plurigrid (https://skillmd.com/u/plurigrid)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/plurigrid/libfuzzer

---


# Libfuzzer Skill

**Trit**: -1 (MINUS)
**Category**: testing-handbook-skills
**Author**: Trail of Bits
**Source**: trailofbits/skills
**License**: AGPL-3.0

## Description

Fuzzing with libFuzzer for finding vulnerabilities in code.

## When to Use

This is a Trail of Bits security skill. Refer to the original repository for detailed usage guidelines and examples.

See: https://github.com/trailofbits/skills

## Related Skills

- audit-context-building
- codeql
- semgrep
- variant-analysis


## SDF Interleaving

This skill connects to **Software Design for Flexibility** (Hanson & Sussman, 2021):

### Primary Chapter: 9. Generic Procedures

**Concepts**: dispatch, multimethod, predicate dispatch, generic

### GF(3) Balanced Triad

```
libfuzzer (+) + SDF.Ch9 (○) + [balancer] (−) = 0
```

**Skill Trit**: 1 (PLUS - generation)


### Connection Pattern

Generic procedures dispatch on predicates. This skill selects implementations dynamically.