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Skill · .md packageTrail of Bits/10 trustVerified

fuzzing-dictionary

Builds and applies fuzzing dictionaries so a fuzzer can produce the keywords, magic bytes, and tokens a target expects.

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About

Builds and applies fuzzing dictionaries so a fuzzer can produce the keywords, magic bytes, and tokens a target expects. Covers extracting tokens from source, headers, binaries, and specifications, dictionary syntax, and wiring one into libFuzzer or AFL++. Use when fuzzing a parser, protocol, or file format, when coverage stalls at input validation, or when a target compares against fixed strings.

What it can do

  • Builds and applies fuzzing dictionaries so a fuzzer can produce the keywords, magic bytes, and tokens a target expects. Covers extracting tokens from source, headers, binaries, and specifications, dictionary syntax, and wiring one into libFuzzer or AFL++. Use when fuzzing a parser, protocol, or file format, when coverage stalls at input validation, or when a target compares against fixed strings.

Setup

  1. Install: npx skills add trailofbits/skills --all
  2. The skill auto-loads when relevant, or invoke it by name in your agent.

Prerequisites

A compatible AI coding agent (Claude Code, Cursor, etc.).

Use cases

designsecurity

Works with

Claude CodeAny agent (.md)

Trust score — 9/10

/10 trustVerified

Trail of Bits is a top-tier security research firm; their skills are professional-grade auditing and fuzzing playbooks used by their own engineers. Open source.

Sources

Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.