Trail of Bits Skills
Security research, vulnerability detection, and audit skills for Claude Code
About
A Claude Code plugin marketplace from security firm Trail of Bits: 44 plugins of security-focused agent skills covering code auditing (C/C++ and Rust review, differential review, variant analysis, Semgrep/CodeQL/static-analysis toolkits, supply-chain auditing), smart-contract security (vulnerability scanners for 6 blockchains), verification (constant-time analysis, mutation testing, property-based testing, Lean proofs), malware analysis (YARA authoring), reverse engineering (DWARF), mobile security, and dev workflows.
Each plugin ships real SKILL.md files with YAML frontmatter — many with dedicated subagents, scripts, and hooks — and the repo keeps a public trophy case of bugs found with the skills (e.g. a timing side-channel in ML-DSA signing reported to RustCrypto). A separate, staff-vetted trailofbits/skills-curated marketplace exists for third-party plugins. Note the CC-BY-SA-4.0 license (share-alike) rather than a permissive software license.
What it can do
- • 44 security plugins: C/C++ and Rust security review, differential and variant analysis
- • Smart-contract scanners for 6 blockchains (Solana, Cairo, Cosmos, Substrate, Algorand, TON)
- • Static analysis tooling: CodeQL, Semgrep, SARIF parsing
- • Verification: constant-time analysis, mutation testing, property-based testing, Lean 4 proofs
- • Supply-chain auditing for npm, PyPI, and Go dependencies
- • Malware analysis (YARA authoring), DWARF reverse engineering, Firebase APK scanning
- • Subagent-orchestrated audit workflows with dedup and false-positive judges
- • Works in Claude Code and Codex via marketplace compatibility
Setup
- Open Claude Code and add the marketplace:
/plugin marketplace add trailofbits/skills. - Browse and install plugins with
/plugin menu. - Invoke a skill by its slash command, e.g.
/rust-review:rust-reviewruns the Rust security review orchestrator. - Codex: the marketplace is loaded via Claude marketplace compatibility —
codex plugin marketplace add trailofbits/skills, thencodex plugin add <plugin-name>@trailofbits. - Install any third-party tooling the skill you use needs (e.g. Semgrep, CodeQL, Burp Suite) — the plugin READMEs document their prerequisites.
- Review findings carefully: agentic audits produce leads with false positives; the repo's own
fp-checkskill exists for systematic false-positive verification.
Prerequisites
Claude Code (or Codex with plugin support). Individual skills may require third-party tools: Semgrep, CodeQL, Burp Suite, YARA, Ghidra, Lean 4, etc. — check each plugin's README.
Use cases
Works with
Trust score — 8/10
Scored 8/10 (verified tier, metrics-v1). Evidence: 7,493 GitHub stars (log-scaled vs catalog peers); last push 3d ago; 0 releases/12mo; 39 open issues. Manual review: real verified skills (44 plugins); workflows grant Bash/Write by design; trophy case documents real found vuln. License: CC-BY-SA-4.0 (copyleft share-alike).
★ 7,493 GitHub stars
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 7.4/10
- Maintenance · recency, releases, issue load
- 7.7/10
- Openness · license + docs
- 8.6/10
- Manual review · sanity read + red-flag check
- 9.0/10
- · 7,493 GitHub stars (log-scaled vs catalog peers)
- · last push 3d ago; 0 releases/12mo; 39 open issues
- · manual review: real verified skills (44 plugins); workflows grant Bash/Write by design; trophy case documents real found vuln
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.