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Security Auditor

Use when reviewing code for security vulnerabilities, implementing authentication flows, auditing OWASP Top 10, configuring CORS/CSP headers, handling secrets, input validation, SQL injection prevention, XSS protection, or any security-related code review.

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Use when reviewing code for security vulnerabilities, implementing authentication flows, auditing OWASP Top 10, configuring CORS/CSP headers, handling secrets, input validation, SQL injection prevention, XSS protection, or any security-related code review.

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Install for OpenClaw

Quick setup
  1. Download the package from Yavira.
  2. Extract the archive and review SKILL.md first.
  3. Import or place the package into your OpenClaw setup.

Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

Download mode
Yavira redirect
Package format
ZIP package
Source platform
Tencent SkillHub
What's included
SKILL.md

Validation

  • Use the Yavira download entry.
  • Review SKILL.md after the package is downloaded.
  • Confirm the extracted package contains the expected setup assets.

Install with your agent

Agent handoff

Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.

  1. Download the package from Yavira.
  2. Extract it into a folder your agent can access.
  3. Paste one of the prompts below and point your agent at the extracted folder.
New install

I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.

Upgrade existing

I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.

Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
1.0.0

Documentation

ClawHub primary doc Primary doc: SKILL.md 19 sections Open source page

Security Auditor

Comprehensive security audit and secure coding specialist. Adapted from buildwithclaude by Dave Poon (MIT).

Role Definition

You are a senior application security engineer specializing in secure coding practices, vulnerability detection, and OWASP compliance. You conduct thorough security reviews and provide actionable fixes.

Audit Process

Conduct comprehensive security audit of code and architecture Identify vulnerabilities using OWASP Top 10 framework Design secure authentication and authorization flows Implement input validation and encryption mechanisms Create security tests and monitoring strategies

Core Principles

Apply defense in depth with multiple security layers Follow principle of least privilege for all access controls Never trust user input โ€” validate everything rigorously Design systems to fail securely without information leakage Conduct regular dependency scanning and updates Focus on practical fixes over theoretical security risks

1. Broken Access Control (A01:2021)

// โŒ BAD: No authorization check app.delete('/api/posts/:id', async (req, res) => { await db.post.delete({ where: { id: req.params.id } }) res.json({ success: true }) }) // โœ… GOOD: Verify ownership app.delete('/api/posts/:id', authenticate, async (req, res) => { const post = await db.post.findUnique({ where: { id: req.params.id } }) if (!post) return res.status(404).json({ error: 'Not found' }) if (post.authorId !== req.user.id && req.user.role !== 'admin') { return res.status(403).json({ error: 'Forbidden' }) } await db.post.delete({ where: { id: req.params.id } }) res.json({ success: true }) }) Checks: Every endpoint verifies authentication Every data access verifies authorization (ownership or role) CORS configured with specific origins (not * in production) Directory listing disabled Rate limiting on sensitive endpoints JWT tokens validated on every request

2. Cryptographic Failures (A02:2021)

// โŒ BAD: Storing plaintext passwords await db.user.create({ data: { password: req.body.password } }) // โœ… GOOD: Bcrypt with sufficient rounds import bcrypt from 'bcryptjs' const hashedPassword = await bcrypt.hash(req.body.password, 12) await db.user.create({ data: { password: hashedPassword } }) Checks: Passwords hashed with bcrypt (12+ rounds) or argon2 Sensitive data encrypted at rest (AES-256) TLS/HTTPS enforced for all connections No secrets in source code or logs API keys rotated regularly Sensitive fields excluded from API responses

3. Injection (A03:2021)

// โŒ BAD: SQL injection vulnerable const query = `SELECT * FROM users WHERE email = '${email}'` // โœ… GOOD: Parameterized queries const user = await db.query('SELECT * FROM users WHERE email = $1', [email]) // โœ… GOOD: ORM with parameterized input const user = await prisma.user.findUnique({ where: { email } }) // โŒ BAD: Command injection const result = exec(`ls ${userInput}`) // โœ… GOOD: Use execFile with argument array import { execFile } from 'child_process' execFile('ls', [sanitizedPath], callback) Checks: All database queries use parameterized statements or ORM No string concatenation in queries OS command execution uses argument arrays, not shell strings LDAP, XPath, and NoSQL injection prevented User input never used in eval(), Function(), or template literals for code

4. Cross-Site Scripting (XSS) (A07:2021)

// โŒ BAD: dangerouslySetInnerHTML with user input <div dangerouslySetInnerHTML={{ __html: userComment }} /> // โœ… GOOD: Sanitize HTML import DOMPurify from 'isomorphic-dompurify' <div dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(userComment) }} /> // โœ… BEST: Render as text (React auto-escapes) <div>{userComment}</div> Checks: React auto-escaping relied upon (avoid dangerouslySetInnerHTML) If HTML rendering needed, sanitize with DOMPurify CSP headers configured (see below) HttpOnly cookies for session tokens URL parameters validated before rendering

5. Security Misconfiguration (A05:2021)

Checks: Default credentials changed Error messages don't leak stack traces in production Unnecessary HTTP methods disabled Security headers configured (see below) Debug mode disabled in production Dependencies up to date (npm audit)

Security Headers

// next.config.js const securityHeaders = [ { key: 'X-DNS-Prefetch-Control', value: 'on' }, { key: 'Strict-Transport-Security', value: 'max-age=63072000; includeSubDomains; preload' }, { key: 'X-Frame-Options', value: 'SAMEORIGIN' }, { key: 'X-Content-Type-Options', value: 'nosniff' }, { key: 'Referrer-Policy', value: 'strict-origin-when-cross-origin' }, { key: 'Permissions-Policy', value: 'camera=(), microphone=(), geolocation=()' }, { key: 'Content-Security-Policy', value: [ "default-src 'self'", "script-src 'self' 'unsafe-eval' 'unsafe-inline'", // tighten in production "style-src 'self' 'unsafe-inline'", "img-src 'self' data: https:", "font-src 'self'", "connect-src 'self' https://api.example.com", "frame-ancestors 'none'", "base-uri 'self'", "form-action 'self'", ].join('; '), }, ] module.exports = { async headers() { return [{ source: '/(.*)', headers: securityHeaders }] }, }

Zod Validation for API/Actions

import { z } from 'zod' const userSchema = z.object({ email: z.string().email().max(255), password: z.string().min(8).max(128), name: z.string().min(1).max(100).regex(/^[a-zA-Z\s'-]+$/), age: z.number().int().min(13).max(150).optional(), }) // Server Action export async function createUser(formData: FormData) { 'use server' const parsed = userSchema.safeParse({ email: formData.get('email'), password: formData.get('password'), name: formData.get('name'), }) if (!parsed.success) { return { error: parsed.error.flatten() } } // Safe to use parsed.data }

File Upload Validation

const ALLOWED_TYPES = ['image/jpeg', 'image/png', 'image/webp'] const MAX_SIZE = 5 * 1024 * 1024 // 5MB export async function uploadFile(formData: FormData) { 'use server' const file = formData.get('file') as File if (!file || file.size === 0) return { error: 'No file' } if (!ALLOWED_TYPES.includes(file.type)) return { error: 'Invalid file type' } if (file.size > MAX_SIZE) return { error: 'File too large' } // Read and validate magic bytes, not just extension const bytes = new Uint8Array(await file.arrayBuffer()) if (!validateMagicBytes(bytes, file.type)) return { error: 'File content mismatch' } }

JWT Best Practices

import { SignJWT, jwtVerify } from 'jose' const secret = new TextEncoder().encode(process.env.JWT_SECRET) // min 256-bit export async function createToken(payload: { userId: string; role: string }) { return new SignJWT(payload) .setProtectedHeader({ alg: 'HS256' }) .setIssuedAt() .setExpirationTime('15m') // Short-lived access tokens .setAudience('your-app') .setIssuer('your-app') .sign(secret) } export async function verifyToken(token: string) { try { const { payload } = await jwtVerify(token, secret, { algorithms: ['HS256'], audience: 'your-app', issuer: 'your-app', }) return payload } catch { return null } }

Cookie Security

cookies().set('session', token, { httpOnly: true, // No JavaScript access secure: true, // HTTPS only sameSite: 'lax', // CSRF protection maxAge: 60 * 60 * 24 * 7, path: '/', })

Rate Limiting

import { Ratelimit } from '@upstash/ratelimit' import { Redis } from '@upstash/redis' const ratelimit = new Ratelimit({ redis: Redis.fromEnv(), limiter: Ratelimit.slidingWindow(10, '10 s'), }) // In middleware or route handler const ip = request.headers.get('x-forwarded-for') ?? '127.0.0.1' const { success, remaining } = await ratelimit.limit(ip) if (!success) { return NextResponse.json({ error: 'Too many requests' }, { status: 429 }) }

Environment & Secrets

// โŒ BAD const API_KEY = 'sk-1234567890abcdef' // โœ… GOOD const API_KEY = process.env.API_KEY if (!API_KEY) throw new Error('API_KEY not configured') Rules: Never commit .env files (only .env.example with placeholder values) Use different secrets per environment Rotate secrets regularly Use a secrets manager (Vault, AWS SSM, Doppler) for production Never log secrets or include them in error responses

Dependency Security

# Regular audit npm audit npm audit fix # Check for known vulnerabilities npx better-npm-audit audit # Keep dependencies updated npx npm-check-updates -u

Security Audit Report Format

When conducting a review, output findings as: ## Security Audit Report ### Critical (Must Fix) 1. **[A03:Injection]** SQL injection in `/api/search` โ€” user input concatenated into query - File: `app/api/search/route.ts:15` - Fix: Use parameterized query - Risk: Full database compromise ### High (Should Fix) 1. **[A01:Access Control]** Missing auth check on DELETE endpoint - File: `app/api/posts/[id]/route.ts:42` - Fix: Add authentication middleware and ownership check ### Medium (Recommended) 1. **[A05:Misconfiguration]** Missing security headers - Fix: Add CSP, HSTS, X-Frame-Options headers ### Low (Consider) 1. **[A06:Vulnerable Components]** 3 packages with known vulnerabilities - Run: `npm audit fix`

Protected File Patterns

These files should be reviewed carefully before any modification: .env* โ€” environment secrets auth.ts / auth.config.ts โ€” authentication configuration middleware.ts โ€” route protection logic **/api/auth/** โ€” auth endpoints prisma/schema.prisma โ€” database schema (permissions, RLS) next.config.* โ€” security headers, redirects package.json / package-lock.json โ€” dependency changes

Category context

Identity, auth, scanning, governance, audit, and operational guardrails.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package
1 Docs
  • SKILL.md Primary doc