Skills

Source Code Scanning

Security-focused source code review and SAST.

Install

npx skills add transilienceai/communitytools --skill source-code-scanning -g -a claude-code -y
Category
Security
Updated
3mo ago
License
MIT
Context cost
Lightabout 1,060 tokens
Runs scripts
No, instructions only

What it does

Security-focused source code review and SAST. Scans for vulnerabilities (OWASP Top 10, CWE Top 25), CVEs in third-party dependencies/packages, hardcoded secrets, malicious code, and insecure patterns. Use when given source code, a repo path, or asked to "audit", "scan", "review" code security, or "check dependencies for CVEs".

Source Code Security Review

Quick Start

  1. Identify - languages, frameworks, package managers present
  2. Automated SAST - run tools appropriate to the stack
  3. Dependency CVEs - scan lockfiles/manifests for known CVEs
  4. Secrets scan - detect hardcoded credentials/tokens
  5. Manual review - trace high-risk sinks (exec, eval, query, deserialize)
  6. Malicious code - check for backdoors, obfuscation, suspicious network calls
  7. Report - findings with CWE/CVE refs, severity, PoC, remediation

Workflow

Phase 1: Enumerate

- Languages: ls **/*.{py,js,ts,java,go,rb,php,cs,rs}
- Packages: find package.json, requirements.txt, go.mod, pom.xml, Gemfile, composer.json, Cargo.toml
- Entry points: main(), index.*, app.*, server.*
- Config files: .env*, config.*, settings.*, *.yaml, *.toml

Phase 2: Automated SAST

See sast-tools.md for commands per language.

Key tools:

  • Multi-language: Semgrep (semgrep --config=auto .)
  • Python: Bandit (bandit -r . -f json)
  • JavaScript/TS: ESLint security plugin, njsscan
  • Java: SpotBugs + FindSecBugs
  • Go: gosec (gosec ./...)
  • PHP: PHPCS Security Audit
  • Ruby: Brakeman (brakeman -o report.json)
  • All: CodeQL (via gh codeql)

Phase 3: Dependency CVE Scan

See dependency-cve-scanning.md for commands.

EcosystemCommand
npm/yarnnpm audit --json / yarn audit
Pythonpip-audit -r requirements.txt
Javadependency-check --scan .
Gogovulncheck ./...
Rubybundle audit
Generictrivy fs . / grype dir:.

Phase 4: Secrets Detection

See secrets-detection.md.

trufflehog filesystem . --json
gitleaks detect --source . -v
Read the whole SKILL.md on GitHub

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