Files
Lixin2026 d5fe2e6a78 feat(codex): add UI metadata for skills (#175)
* feat(codex): add skill UI metadata

* Use official Trail of Bits logo

* fix: resolve code review findings for PR #175

Codex silently drops the icons as authored: its loader
(codex-rs/core-skills resolve_asset_path) requires icon paths
containing '..' to resolve under <plugin_root>/assets/, and the
repo-root .codex/assets location fails that containment check.
Verified empirically via codex app-server plugin/read: every
iconSmall/iconLarge came back null; only brand_color applied.

P1 fixed:
- Vendor trail-of-bits-mark.svg into plugins/<name>/assets/ for
  all 38 plugins with skills and point every openai.yaml at
  ../../assets/trail-of-bits-mark.svg (the supported plugin-level
  shared asset pattern). Icons now resolve for marketplace
  installs too, since nothing escapes the plugin root.
- Drop the .codex/ additions: .codex/skills/gh-cli/agents/
  openai.yaml resolved nowhere (.codex/skills is not a Codex
  discovery root) and PR #173 removes the whole .codex/ tree

P2 fixed:
- Patch-bump all 38 touched plugins in plugin.json and
  marketplace.json so installed clients pick up the metadata

Verified:
- Static check replicating Codex's resolution algorithm: all 73
  yaml files resolve under their plugin assets/ and exist
- Live codex app-server probe: 71/72 loadable skills report
  resolved iconSmall/iconLarge and brand_color #D83A34
  (claude-in-chrome-troubleshooting fails to load on main due to
  a pre-existing 64-char qualified-name limit, fixed by #173's
  rename; zeroize-audit's manifest mcpServers object is likewise
  a pre-existing Codex incompatibility fixed by #173)
- validate_codex_skills.py, validate_plugin_metadata.py, prek all
  pass

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(codex): use skill-local icon assets

---------

Co-authored-by: Dan Guido <dan@trailofbits.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-05 12:28:41 -04:00
..

agentic-actions-auditor

Audits GitHub Actions workflows for security vulnerabilities in AI agent integrations. Detects misconfigurations and attack vectors specific to Claude Code Action, Gemini CLI, OpenAI Codex, and GitHub AI Inference when used in CI/CD pipelines.

What It Does

This plugin provides a security audit skill that analyzes GitHub Actions workflow YAML files for vulnerabilities arising from AI agent integrations. It focuses on scenarios where attacker-controlled input (pull request titles, branch names, issue bodies, comments, commit messages, file contents, environment variables) can reach an AI agent running with elevated permissions in CI.

Attack Vectors Detected

The skill checks for nine categories of security issues:

  • A. Env Var Intermediary -- Attacker data flows through env: blocks to AI prompt fields with no visible ${{ }} expressions
  • B. Direct Expression Injection -- ${{ github.event.* }} expressions embedded directly in AI prompt fields
  • C. CLI Data Fetch -- gh CLI commands in prompts fetch attacker-controlled content at runtime
  • D. PR Target + Checkout -- pull_request_target trigger combined with checkout of PR head code
  • E. Error Log Injection -- CI error output or build logs fed to AI prompts carry attacker payloads
  • F. Subshell Expansion -- Restricted tools like echo allow subshell expansion (echo $(env)) bypass
  • G. Eval of AI Output -- AI response flows to eval, exec, or unquoted $() in subsequent steps
  • H. Dangerous Sandbox Configs -- danger-full-access, Bash(*), --yolo disable safety protections
  • I. Wildcard Allowlists -- allowed_non_write_users: "*" or allow-users: "*" permit any user to trigger

Supported AI Actions

Action Repository Notes
Claude Code Action anthropics/claude-code-action
Gemini CLI google-github-actions/run-gemini-cli Primary
Gemini CLI (legacy) google-gemini/gemini-cli-action Archived
OpenAI Codex openai/codex-action
GitHub AI Inference actions/ai-inference

Installation

From a project with the Trail of Bits internal marketplace configured:

/plugin menu

Select agentic-actions-auditor from the Security Tooling section.

Skills Included

Skill Description
agentic-actions-auditor Audits GitHub Actions workflow files for AI agent security vulnerabilities

Target Audience

  • Security auditors reviewing repositories that use AI agents in CI/CD
  • Developers configuring Claude Code Action, Gemini CLI, OpenAI Codex, or GitHub AI Inference in their workflows
  • DevSecOps engineers establishing secure defaults for AI-assisted code review pipelines

Usage

Once installed, the skill activates automatically when Claude detects GitHub Actions workflow files (.github/workflows/*.yml) containing AI agent action references. You can also invoke it directly:

Audit the GitHub Actions workflows in this repository for AI agent security issues.

The skill produces a structured findings report covering each applicable attack vector with severity ratings and remediation guidance.

License

Creative Commons Attribution-ShareAlike 4.0 International