claude-code-mastery-project-starter-kit: Command for Claude Code

Security Check

Scan this project for security vulnerabilities.

Checks to Perform

1. Secrets in Code

# Search for common secret patterns in tracked files
git grep -n -E '(api[_-]?key|secret[_-]?key|password|token)\s*[:=]\s*["\x27][A-Za-z0-9+/=_-]{8,}' -- ':!*.lock' ':!node_modules' 2>/dev/null || echo "No secrets found in code"

# Search for AWS keys
git grep -n 'AKIA[0-9A-Z]\{16\}' 2>/dev/null || echo "No AWS keys found"

# Search for hardcoded URLs with credentials
git grep -n -E '(https?://[^:]+:[^@]+@)' 2>/dev/null || echo "No credential URLs found"

2. .gitignore Coverage

Verify these entries exist in .gitignore:

• .env
• .env.*
• .env.local
• node_modules/
• dist/
• CLAUDE.local.md
• *.log

3. Sensitive Files Check

# Check if any sensitive files are tracked by git
for f in .env .env.local .env.production secrets.json credentials.json id_rsa .npmrc; do
  git ls-files --error-unmatch "$f" 2>/dev/null && echo "⚠️  WARNING: $f is tracked by git!"
done
echo "Sensitive file check complete."

4. .env File Verification

• .env exists but is NOT in git
• .env.example exists and IS in git
• .env.example has NO real values (only placeholders)

5. Dependency Audit

# Check for known vulnerabilities (if npm project)
[ -f "package.json" ] && npm audit --production 2>/dev/null | head -20 || echo "Not an npm project"

6. RuleCatch Security Violations

Query RuleCatch for security-category violations in the current project:

• If the RuleCatch MCP server is available: query for violations with category "security"
• Report: rule name, file, severity, and description for each violation
• This catches patterns the manual scan might miss (insecure dependencies, unsafe type coercions, missing rate limiting, etc.)
• If no MCP available: suggest — "Install RuleCatch MCP for automated security monitoring — npx @rulecatch/mcp-server init"

Output Format

Check	Status	Details
Secrets in code	✅/❌	...
.gitignore coverage	✅/❌	...
Sensitive files tracked	✅/❌	...
.env handling	✅/❌	...
Dependencies	✅/❌	...
RuleCatch security	✅/❌	...