Vulnerability Scanning Skill for Claude

Automated security scanning for dependencies, code, containers with Trivy, Snyk, npm audit. Use for CI/CD security gates, pre-deployment audits, compliance requirements, or encountering CVE detection, outdated packages, license compliance, SBOM generation errors.

799 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

202

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/secondsky/claude-skills --skill vulnerability-scanning

The instruction itself

8 sections, as written by the author

Vulnerability Scanning

Automate security vulnerability detection across code, dependencies, and containers.

Dependency Scanning

# npm audit
npm audit --audit-level=high

# Snyk
snyk test --severity-threshold=high

# Safety (Python)
safety check --full-report

Container Scanning (Trivy)

# Scan container image
trivy image myapp:latest --severity HIGH,CRITICAL

# Scan filesystem
trivy fs --scanners vuln,secret .

GitHub Actions Integration

name: Security Scan

on: [push, pull_request]

jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          scan-type: 'fs'
          severity: 'CRITICAL,HIGH'
          exit-code: '1'

      - name: Run Snyk
        uses: snyk/actions/node@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
        with:
          args: --severity-threshold=high

      - name: npm audit
        run: npm audit --audit-level=high

Code Analysis (Bandit for Python)

bandit -r src/ -ll -ii

Node.js Scanner

const { execSync } = require('child_process');

function runScan(command) {
  try {
    return JSON.parse(execSync(command, { stdio: ['pipe', 'pipe', 'ignore'] }).toString());
  } catch (err) {
    // A tool may be missing, exit non-zero, or print non-JSON output (e.g.
    // trivy progress text when not on a TTY). Treat that as "no parseable
    // result" rather than crashing the scanner.
    console.warn(`Scan command failed or returned non-JSON: ${command}`);
    return null;
  }
}

function runSecurityScan() {
  const results = {
    npm: runScan('npm audit --json'),
    trivy: runScan('trivy fs --quiet --format json .')
  };

  if (!results.npm || !results.npm.metadata) {
    console.warn('npm audit produced no metadata; skipping npm checks');
  } else {
    const critical = results.npm.metadata?.vulnerabilities?.critical || 0;
    if (critical > 0) {
      console.error(`Found ${critical} critical vulnerabilities`);
      process.exit(1);
    }
  }
}

Best Practices

Integrate scanning in CI/CD pipeline
Fail builds on high/critical findings
Scan dependencies and containers
Track vulnerabilities over time
Document accepted false positives

Tools

Trivy (containers, filesystem)
Snyk (dependencies, code)
npm audit / yarn audit
Bandit (Python)
OWASP Dependency-Check

Other skills for the same job

different authors, same section of the catalogue

Backend Security Coder

by ComeOnOliver

×2

Expert in secure backend coding practices specializing in input validation, authentication, and API security. Use PROACTIVELY for backend security implementations or security code reviews.

5k tokens

Cloud Penetration Testing

by ComeOnOliver

×2

This skill should be used when the user asks to "perform cloud penetration testing", "assess Azure or AWS or GCP security", "enumerate cloud resources", "exploit cloud misconfigurations", "test O365 security", "extract secrets from cloud environments", or "audit cloud infrastructure". It provides comprehensive techniques for security assessment across major cloud platforms.

16k tokens

Codebase Cleanup Deps Audit

by ComeOnOliver

×2

You are a dependency security expert specializing in vulnerability scanning, license compliance, and supply chain security. Analyze project dependencies for known vulnerabilities, licensing issues, outdated packages, and provide actionable remediation strategies.

Comprehensive Flow Nexus platform management - authentication, sandboxes, app deployment, payments, and challenges

14k tokens

Linux Privilege Escalation

by ComeOnOliver

×2

This skill should be used when the user asks to "escalate privileges on Linux", "find privesc vectors on Linux systems", "exploit sudo misconfigurations", "abuse SUID binaries", "exploit cron jobs for root access", "enumerate Linux systems for privilege escalation", or "gain root access from low-privilege shell". It provides comprehensive techniques for identifying and exploiting privilege escalation paths on Linux systems.

Expert malware analyst specializing in defensive malware research, threat intelligence, and incident response. Masters sandbox analysis, behavioral analysis, and malware family identification. Handles static/dynamic analysis, unpacking, and IOC extraction. Use PROACTIVELY for malware triage, threat hunting, incident response, or security research.

This skill should be used when the user asks to "use Metasploit for penetration testing", "exploit vulnerabilities with msfconsole", "create payloads with msfvenom", "perform post-exploitation", "use auxiliary modules for scanning", or "develop custom exploits". It provides comprehensive guidance for leveraging the Metasploit Framework in security assessments.

7k tokens

Mobile Security Coder

by ComeOnOliver

×2

Expert in secure mobile coding practices specializing in input validation, WebView security, and mobile-specific security patterns. Use PROACTIVELY for mobile security implementations or mobile security code reviews.

6k tokens

How to use it

Copy the folder

Take secondsky/vulnerability-scanning from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.