security-guidance

v2.9.0

PreToolUse security reminder hook for Claude Code. Catches 12 common security anti-patterns in Edit/Write/MultiEdit operations BEFORE they happen — command injection (exec, os.system, subprocess shell=True), XSS (innerHTML, dangerouslySetInnerHTML, document.write), SQL injection (f-string queries, .format), unsafe deserialization (pickle, yaml.unsafe_load), code injection (eval, new Function), and GitHub Actions workflow injection. Session-state caching prevents duplicate warnings; 30-day auto-cleanup of stale state files. Disable per-session with ENABLE_SECURITY_REMINDER=0. Ported from David Dworken's MIT-licensed plugin at github.com/alirezarezvani/aeo-box.

Claude Code1 skill

by Alireza RezvaniMIT24.2kupdated 10 hours ago

Source

$ git clone https://github.com/alirezarezvani/claude-skills

Clone the source, then follow the repository's marketplace instructions for your runtime. The plugin root is engineering/security-guidance/ inside the repository.

Layout

engineering/security-guidance/

├── .claude-plugin/plugin.json
└── skills/security-guidance/SKILL.md

Skills1

security-guidanceskills/security-guidance/SKILL.md

PreToolUse security-anti-pattern hook for Claude Code. Catches 12 common security risks (command injection, XSS, SQL injection, unsafe deserialization, GitHub Actions workflow injection, eval/new Function code injection) BEFORE the Edit/Write/MultiEdit operation completes. Session-state caching prevents duplicate warnings on the same file+rule combo. Stdlib only — no dependencies. Use when you want a safety net during Claude Code sessions that touch security-sensitive code (auth, payments, user input handling, IaC). Disable with ENABLE_SECURITY_REMINDER=0 if you need to perform a verified-safe operation that would otherwise trip a pattern. Triggers — "add security hook", "block unsafe code", "detect command injection before write", "prevent SQL injection patterns", "security warning hook".

Manifests1

engineering/security-guidance/.claude-plugin/plugin.json

{
  "name": "security-guidance",
  "description": "PreToolUse security reminder hook for Claude Code. Catches 12 common security anti-patterns in Edit/Write/MultiEdit operations BEFORE they happen — command injection (exec, os.system, subprocess shell=True), XSS (innerHTML, dangerouslySetInnerHTML, document.write), SQL injection (f-string queries, .format), unsafe deserialization (pickle, yaml.unsafe_load), code injection (eval, new Function), and GitHub Actions workflow injection. Session-state caching prevents duplicate warnings; 30-day auto-cleanup of stale state files. Disable per-session with ENABLE_SECURITY_REMINDER=0. Ported from David Dworken's MIT-licensed plugin at github.com/alirezarezvani/aeo-box.",
  "version": "2.9.0",
  "author": {
    "name": "Alireza Rezvani",
    "url": "https://alirezarezvani.com"
  },
  "homepage": "https://github.com/alirezarezvani/claude-skills/tree/main/engineering/security-guidance",
  "repository": "https://github.com/alirezarezvani/claude-skills",
  "license": "MIT",
  "skills": [
    "./skills/security-guidance"
  ],
  "attribution": {
    "upstream": "https://github.com/alirezarezvani/aeo-box/tree/main/.claude/plugins/security-guidance",
    "upstream_author": "David Dworken (dworken@anthropic.com)",
    "upstream_license": "MIT",
    "modifications": "12 patterns preserved verbatim. Added 3 patterns (subprocess shell=True, SQL injection via f-string/.format, yaml.unsafe_load). Debug log moved from /tmp to ~/.claude/security-warnings-log.txt for persistence. Added documentation reference under skills/security-guidance/."
  }
}