Dan Guido 43d16a56d8 zeroize-audit: give SKILL.md a run entry point and link the Rust patterns reference (#267)
* zeroize-audit: give SKILL.md a run entry point, link Rust patterns

SKILL.md described what the skill finds but never told the model how to
start a run: prompts/task.md, which holds the phase loop the whole
pipeline hangs off, appeared only as a parenthetical in a table caption.
Add a "How to Run" section that maps a user request onto collecting the
inputs, reading task.md and system.md, executing the phase loop over
workflows/phase-{N}-*.md, and returning final-report.md, plus the
orchestrator-state.json resume path.

references/rust-zeroization-patterns.md had no inbound reference from
anywhere in the plugin. Link it from SKILL.md's detection strategy and
from the two Rust analyzer agents, each pointing at the section covering
the patterns that agent's scripts match: Section A/B from
2b-rust-source-analyzer, Section C from 3b-rust-compiler-analyzer, with
Section D flagged there as a coverage gap a clean run does not rule out.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Correct the completeness claims in the new reference links

Review found the link text overstated what the pattern reference covers,
in a way that risks suppressing real findings. Verified against the
scripts and corrected:

- Section C documents 12 patterns, not every pattern the three scripts
  match: check_mir_patterns.py defines 8 detectors against 3 entries, and
  check_llvm_patterns.py emits classes for secret return values and
  by-value aggregate arguments with no entry at all. The 3b agent now
  says Section C is a subset and that a pattern with no entry is still a
  valid finding carrying the script's own evidence, so a missing entry
  cannot read as "not a real pattern".
- Section A is not a 1:1 map of the 2b bullet list: the
  missing-zeroize-dependency check has no entry, and A6 (ManuallyDrop<T>
  field) has no bullet. Counts coincide at 12; contents do not.
- 34 of the 40 patterns are detected; Section D's 6 are known gaps, so
  SKILL.md no longer calls all 40 "what the tooling looks for".
- C-ASM3 and C-ASM4 carry no snippet, so "each entry gives a reproducing
  snippet" is now "most also give".

Also fill in the max_tus and mcp_timeout_ms defaults from
schemas/input.json, which the new "leave other fields at their defaults"
step depends on, and add the three reference files missing from the
README index, including the one this branch de-orphaned.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* zeroize-audit: register the agent dispatches and route coverage gaps to the report

The run path this PR documents dispatches every agent by bare name — twelve
sites across the phase workflows, none carrying a subagent_type — so the first
thing a user hits after following the new "How to Run" section is an
unregistered dispatch. Namespace all twelve as `zeroize-audit:<agent>`, matching
rust-review and the names the agent files actually declare.

The Section D paragraph told 3b to record unaudited patterns in notes.md, but
the report assembler reads only the *-findings.json files, so a crate using
`Arc<SecretKey>` or a `static LazyLock<MasterKey>` produced a final report
indistinguishable from a crate using neither. Write them to coverage-gaps.json
instead, have the assembler read it, and require Analysis Coverage to state
either the gaps or that none were reported — a missing line reads as full
coverage.

2b told the agent to use a Section A snippet to judge whether a flagged type "is
a false positive", with nothing in the file permitting or recording a drop; 3b
already carries a "never drop or downgrade" guard. Give 2b the same guard: a
weak match is a needs_review finding whose evidence says how the code differs,
never an omission.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014UFqJu1ada7gXjD9peo1rX

* zeroize-audit: drop the duplicated merge paragraph in the assembler

The Step 1 collection section carried the same instruction twice, the second
copy predating the rust-compiler-analysis directory it omits.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014UFqJu1ada7gXjD9peo1rX

* zeroize-audit: arm the dispatch check and make the coverage survey real

The namespaced dispatches were written as `` `subagent_type: zeroize-audit:X` ``,
which matches neither validator extractor — both need a quote or backtick
immediately after the colon — so validate_subagent_dispatch inspected zero sites
in this plugin and a regression back to a bare name would have passed CI. Quote
the values; the validator now sees all twelve, and reverting one to a bare name
fails the build.

coverage-gaps.json was read as item 4 of Step 1, but Mode Branching runs Step 1
in interim mode only while Analysis Coverage is Step 6, final-only — so the file
was read, discarded, and the report still said "no coverage gaps were reported".
Read it where it is used instead.

Nothing told 3b to perform the Section D survey: the paragraph sat above Step 1,
the numbered steps never looked, and the agent reads only MIR/IR/assembly while
five of the six D patterns are source constructs. Add Step 6 with the grep
markers and the sensitive-type filter, require the file unconditionally so an
empty survey is distinguishable from no survey, and declare it in the phase-2
workflow, the always-write list, system.md's layout, and the report template.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014UFqJu1ada7gXjD9peo1rX

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: kz-tob <kara.zaffarano@trailofbits.com>
2026-08-24 09:27:02 -04:00

Trail of Bits Skills Marketplace

A Claude Code plugin marketplace from Trail of Bits providing skills to enhance AI-assisted security analysis, testing, and development workflows. Codex can load this marketplace through its Claude marketplace compatibility.

Also see: claude-code-config · codex-config · skills-curated · claude-code-devcontainer · dropkit · coop

Installation

Claude Code Marketplace

/plugin marketplace add trailofbits/skills

Browse and Install Plugins

/plugin menu

Codex

Codex supports Claude plugin marketplaces directly, so this repository does not need Codex-specific sidecar metadata.

Install the marketplace with:

codex plugin marketplace add trailofbits/skills
codex plugin list
codex plugin add <plugin-name>@trailofbits

Local Development

To add the marketplace locally (e.g., for testing or development), navigate to the parent directory of this repository:

cd /path/to/parent  # e.g., if repo is at ~/projects/skills, be in ~/projects
/plugins marketplace add ./skills

Available Plugins

Smart Contract Security

Plugin Description
building-secure-contracts Smart contract security toolkit with vulnerability scanners for 6 blockchains
entry-point-analyzer Identify state-changing entry points in smart contracts for security auditing

Code Auditing

Plugin Description
agentic-actions-auditor Audit GitHub Actions workflows for AI agent security vulnerabilities
audit-context-building Understand a codebase before looking for bugs in it, one function at a time
burpsuite-project-parser Search and extract data from Burp Suite project files
c-review Comprehensive C/C++ security review with clustered parallel workers and SARIF output
differential-review Security-focused differential review of code changes with git history analysis
dimensional-analysis Annotate codebases with dimensional analysis comments to detect unit mismatches and formula bugs
fp-check Systematic false positive verification for security bug analysis with mandatory gate reviews
insecure-defaults Parallel audit workflow for fail-open insecure defaults, with a refuting verifier per candidate file
rust-review Comprehensive Rust security review covering safe/unsafe boundary, memory safety, concurrency, panic-DoS, FFI, and async runtime with SARIF output
semgrep-rule-creator Create and refine Semgrep rules for custom vulnerability detection
semgrep-rule-variant-creator Port existing Semgrep rules to new target languages with test-driven validation
sharp-edges Identify error-prone APIs, dangerous configurations, and footgun designs
static-analysis Static analysis toolkit with CodeQL, Semgrep, and SARIF parsing
supply-chain-risk-auditor Audit npm, PyPI, and Go dependencies for version-matched advisories, abandoned upstreams, publisher concentration, and install scripts
testing-handbook-skills Skills from the Testing Handbook: fuzzers, static analysis, sanitizers, coverage
trailmark Code graph analysis, bounded subagent context slicing, Mermaid diagrams, mutation testing triage, and protocol verification
variant-analysis Find similar vulnerabilities across codebases using pattern-based analysis
vulnerability-triage-brocards Triage vulnerability reports using 7 brocards to accept, dismiss, or request more info before deeper analysis

Malware Analysis

Plugin Description
yara-authoring YARA detection rule authoring with linting, atom analysis, and best practices

Verification

Plugin Description
constant-time-analysis Detect compiler-induced timing side-channels in cryptographic code
mutation-testing Configure mewt/muton mutation testing campaigns — scope targets, tune timeouts, optimize long runs
property-based-testing Write, review, and triage property-based tests — Hypothesis, fast-check, proptest, and Echidna or Medusa for Solidity invariants
spec-to-code-compliance Check code against the documentation that specifies it, across contracts, C/C++, services, and firmware
writing-lean-proofs Write structured Lean 4 proofs and design Lean libraries following Mathlib conventions
zeroize-audit Detect missing or compiler-eliminated zeroization of secrets in C/C++ and Rust

Reverse Engineering

Plugin Description
dwarf-expert Analyze DWARF debug info: parse and search DIEs, verify integrity, write DWARF parsing code

Mobile Security

Plugin Description
firebase-apk-scanner Scan Android APKs for Firebase security misconfigurations

Development

Plugin Description
devcontainer-setup Create pre-configured devcontainers with Claude Code and language-specific tooling
gh-cli Intercept GitHub URL fetches and redirect to the authenticated gh CLI
git-cleanup Safely clean up git worktrees and local branches with gated confirmation workflow
goal-prompt Draft /goal commands for goal mode in Claude Code and Codex — verifiable completion conditions formatted to a copy-ready single line
github-triage Triage open GitHub issues and PRs: merge ready bot/approved PRs, review unreviewed ones via subagents, close resolved issues with cited comments, cross-link pending fixes, and score the rest with local-only priority and change-size estimates
let-fate-decide Draw Tarot cards using cryptographic randomness to add entropy to vague planning
modern-cpp Modern C++ best practices (C++20/23/26) with compiler hardening and safe idioms
modern-python Modern Python tooling and best practices with uv, ruff, and pytest
open-sourcing Prepare a repository for public release: secrets hygiene, licensing, CI readiness, and release automation
second-opinion Run code reviews using external LLM CLIs (OpenAI Codex, Google Gemini) on changes, diffs, or commits. Bundles Codex's built-in MCP server.
skill-improver Iterative skill refinement loop using automated fix-review cycles

Team Management

Plugin Description
culture-index Interpret Culture Index survey results for individuals and teams

Tooling

Plugin Description
claude-in-chrome-troubleshooting Diagnose and fix Claude in Chrome MCP extension connectivity issues

Trophy Case

Bugs discovered using Trail of Bits Skills. Found something? Let us know!

When reporting bugs you've found, feel free to mention:

Found using Trail of Bits Skills

Skill Bug
constant-time-analysis Timing side-channel in ML-DSA signing

Contributing

We welcome contributions! See AGENTS.md for skill authoring guidelines, and run make check before you push — it runs most of CI locally (see AGENTS.md for what it does not cover).

License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Made by Trail of Bits.

S
Description
semgrep: Runs a Semgrep security scan over a codebase: detects languages, selects rulesets, presents the plan for explicit approval, then runs every approved ruleset…; modern-python: Configures Python projects with modern tooling (uv, ruff, ty). Use when creating projects, writing standalone scripts, or migrating from pip/Poetry/mypy/black.; codeql: Scans a codebase for security vulnerabilities using CodeQL's interprocedural data flow and taint tracking analysis. Triggers on "run codeql", "code…
Readme CC-BY-SA-4.0 14 MiB
Languages
Python 64.6%
JavaScript 18.8%
Shell 12.6%
YARA 0.6%
C 0.5%
Other 2.6%