Initial: Claude config with agents, skills, commands, rules and scripts

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+---
+name: security-review
+description: Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides comprehensive security checklist and patterns.
+---
+
+# Security Review Skill
+
+This skill ensures all code follows security best practices and identifies potential vulnerabilities.
+
+## When to Activate
+
+- Implementing authentication or authorization
+- Handling user input or file uploads
+- Creating new API endpoints
+- Working with secrets or credentials
+- Implementing payment features
+- Storing or transmitting sensitive data
+- Integrating third-party APIs
+
+## Security Checklist
+
+### 1. Secrets Management
+
+#### ❌ NEVER Do This
+```typescript
+const apiKey = "sk-proj-xxxxx"  // Hardcoded secret
+const dbPassword = "password123" // In source code
+```
+
+#### ✅ ALWAYS Do This
+```typescript
+const apiKey = process.env.OPENAI_API_KEY
+const dbUrl = process.env.DATABASE_URL
+
+// Verify secrets exist
+if (!apiKey) {
+  throw new Error('OPENAI_API_KEY not configured')
+}
+```
+
+#### Verification Steps
+- [ ] No hardcoded API keys, tokens, or passwords
+- [ ] All secrets in environment variables
+- [ ] `.env.local` in .gitignore
+- [ ] No secrets in git history
+- [ ] Production secrets in hosting platform (Vercel, Railway)
+
+### 2. Input Validation
+
+#### Always Validate User Input
+```typescript
+import { z } from 'zod'
+
+// Define validation schema
+const CreateUserSchema = z.object({
+  email: z.string().email(),
+  name: z.string().min(1).max(100),
+  age: z.number().int().min(0).max(150)
+})
+
+// Validate before processing
+export async function createUser(input: unknown) {
+  try {
+    const validated = CreateUserSchema.parse(input)
+    return await db.users.create(validated)
+  } catch (error) {
+    if (error instanceof z.ZodError) {
+      return { success: false, errors: error.errors }
+    }
+    throw error
+  }
+}
+```
+
+#### File Upload Validation
+```typescript
+function validateFileUpload(file: File) {
+  // Size check (5MB max)
+  const maxSize = 5 * 1024 * 1024
+  if (file.size > maxSize) {
+    throw new Error('File too large (max 5MB)')
+  }
+
+  // Type check
+  const allowedTypes = ['image/jpeg', 'image/png', 'image/gif']
+  if (!allowedTypes.includes(file.type)) {
+    throw new Error('Invalid file type')
+  }
+
+  // Extension check
+  const allowedExtensions = ['.jpg', '.jpeg', '.png', '.gif']
+  const extension = file.name.toLowerCase().match(/\.[^.]+$/)?.[0]
+  if (!extension || !allowedExtensions.includes(extension)) {
+    throw new Error('Invalid file extension')
+  }
+
+  return true
+}
+```
+
+#### Verification Steps
+- [ ] All user inputs validated with schemas
+- [ ] File uploads restricted (size, type, extension)
+- [ ] No direct use of user input in queries
+- [ ] Whitelist validation (not blacklist)
+- [ ] Error messages don't leak sensitive info
+
+### 3. SQL Injection Prevention
+
+#### ❌ NEVER Concatenate SQL
+```typescript
+// DANGEROUS - SQL Injection vulnerability
+const query = `SELECT * FROM users WHERE email = '${userEmail}'`
+await db.query(query)
+```
+
+#### ✅ ALWAYS Use Parameterized Queries
+```typescript
+// Safe - parameterized query
+const { data } = await supabase
+  .from('users')
+  .select('*')
+  .eq('email', userEmail)
+
+// Or with raw SQL
+await db.query(
+  'SELECT * FROM users WHERE email = $1',
+  [userEmail]
+)
+```
+
+#### Verification Steps
+- [ ] All database queries use parameterized queries
+- [ ] No string concatenation in SQL
+- [ ] ORM/query builder used correctly
+- [ ] Supabase queries properly sanitized
+
+### 4. Authentication & Authorization
+
+#### JWT Token Handling
+```typescript
+// ❌ WRONG: localStorage (vulnerable to XSS)
+localStorage.setItem('token', token)
+
+// ✅ CORRECT: httpOnly cookies
+res.setHeader('Set-Cookie',
+  `token=${token}; HttpOnly; Secure; SameSite=Strict; Max-Age=3600`)
+```
+
+#### Authorization Checks
+```typescript
+export async function deleteUser(userId: string, requesterId: string) {
+  // ALWAYS verify authorization first
+  const requester = await db.users.findUnique({
+    where: { id: requesterId }
+  })
+
+  if (requester.role !== 'admin') {
+    return NextResponse.json(
+      { error: 'Unauthorized' },
+      { status: 403 }
+    )
+  }
+
+  // Proceed with deletion
+  await db.users.delete({ where: { id: userId } })
+}
+```
+
+#### Row Level Security (Supabase)
+```sql
+-- Enable RLS on all tables
+ALTER TABLE users ENABLE ROW LEVEL SECURITY;
+
+-- Users can only view their own data
+CREATE POLICY "Users view own data"
+  ON users FOR SELECT
+  USING (auth.uid() = id);
+
+-- Users can only update their own data
+CREATE POLICY "Users update own data"
+  ON users FOR UPDATE
+  USING (auth.uid() = id);
+```
+
+#### Verification Steps
+- [ ] Tokens stored in httpOnly cookies (not localStorage)
+- [ ] Authorization checks before sensitive operations
+- [ ] Row Level Security enabled in Supabase
+- [ ] Role-based access control implemented
+- [ ] Session management secure
+
+### 5. XSS Prevention
+
+#### Sanitize HTML
+```typescript
+import DOMPurify from 'isomorphic-dompurify'
+
+// ALWAYS sanitize user-provided HTML
+function renderUserContent(html: string) {
+  const clean = DOMPurify.sanitize(html, {
+    ALLOWED_TAGS: ['b', 'i', 'em', 'strong', 'p'],
+    ALLOWED_ATTR: []
+  })
+  return <div dangerouslySetInnerHTML={{ __html: clean }} />
+}
+```
+
+#### Content Security Policy
+```typescript
+// next.config.js
+const securityHeaders = [
+  {
+    key: 'Content-Security-Policy',
+    value: `
+      default-src 'self';
+      script-src 'self' 'unsafe-eval' 'unsafe-inline';
+      style-src 'self' 'unsafe-inline';
+      img-src 'self' data: https:;
+      font-src 'self';
+      connect-src 'self' https://api.example.com;
+    `.replace(/\s{2,}/g, ' ').trim()
+  }
+]
+```
+
+#### Verification Steps
+- [ ] User-provided HTML sanitized
+- [ ] CSP headers configured
+- [ ] No unvalidated dynamic content rendering
+- [ ] React's built-in XSS protection used
+
+### 6. CSRF Protection
+
+#### CSRF Tokens
+```typescript
+import { csrf } from '@/lib/csrf'
+
+export async function POST(request: Request) {
+  const token = request.headers.get('X-CSRF-Token')
+
+  if (!csrf.verify(token)) {
+    return NextResponse.json(
+      { error: 'Invalid CSRF token' },
+      { status: 403 }
+    )
+  }
+
+  // Process request
+}
+```
+
+#### SameSite Cookies
+```typescript
+res.setHeader('Set-Cookie',
+  `session=${sessionId}; HttpOnly; Secure; SameSite=Strict`)
+```
+
+#### Verification Steps
+- [ ] CSRF tokens on state-changing operations
+- [ ] SameSite=Strict on all cookies
+- [ ] Double-submit cookie pattern implemented
+
+### 7. Rate Limiting
+
+#### API Rate Limiting
+```typescript
+import rateLimit from 'express-rate-limit'
+
+const limiter = rateLimit({
+  windowMs: 15 * 60 * 1000, // 15 minutes
+  max: 100, // 100 requests per window
+  message: 'Too many requests'
+})
+
+// Apply to routes
+app.use('/api/', limiter)
+```
+
+#### Expensive Operations
+```typescript
+// Aggressive rate limiting for searches
+const searchLimiter = rateLimit({
+  windowMs: 60 * 1000, // 1 minute
+  max: 10, // 10 requests per minute
+  message: 'Too many search requests'
+})
+
+app.use('/api/search', searchLimiter)
+```
+
+#### Verification Steps
+- [ ] Rate limiting on all API endpoints
+- [ ] Stricter limits on expensive operations
+- [ ] IP-based rate limiting
+- [ ] User-based rate limiting (authenticated)
+
+### 8. Sensitive Data Exposure
+
+#### Logging
+```typescript
+// ❌ WRONG: Logging sensitive data
+console.log('User login:', { email, password })
+console.log('Payment:', { cardNumber, cvv })
+
+// ✅ CORRECT: Redact sensitive data
+console.log('User login:', { email, userId })
+console.log('Payment:', { last4: card.last4, userId })
+```
+
+#### Error Messages
+```typescript
+// ❌ WRONG: Exposing internal details
+catch (error) {
+  return NextResponse.json(
+    { error: error.message, stack: error.stack },
+    { status: 500 }
+  )
+}
+
+// ✅ CORRECT: Generic error messages
+catch (error) {
+  console.error('Internal error:', error)
+  return NextResponse.json(
+    { error: 'An error occurred. Please try again.' },
+    { status: 500 }
+  )
+}
+```
+
+#### Verification Steps
+- [ ] No passwords, tokens, or secrets in logs
+- [ ] Error messages generic for users
+- [ ] Detailed errors only in server logs
+- [ ] No stack traces exposed to users
+
+### 9. Blockchain Security (Solana)
+
+#### Wallet Verification
+```typescript
+import { verify } from '@solana/web3.js'
+
+async function verifyWalletOwnership(
+  publicKey: string,
+  signature: string,
+  message: string
+) {
+  try {
+    const isValid = verify(
+      Buffer.from(message),
+      Buffer.from(signature, 'base64'),
+      Buffer.from(publicKey, 'base64')
+    )
+    return isValid
+  } catch (error) {
+    return false
+  }
+}
+```
+
+#### Transaction Verification
+```typescript
+async function verifyTransaction(transaction: Transaction) {
+  // Verify recipient
+  if (transaction.to !== expectedRecipient) {
+    throw new Error('Invalid recipient')
+  }
+
+  // Verify amount
+  if (transaction.amount > maxAmount) {
+    throw new Error('Amount exceeds limit')
+  }
+
+  // Verify user has sufficient balance
+  const balance = await getBalance(transaction.from)
+  if (balance < transaction.amount) {
+    throw new Error('Insufficient balance')
+  }
+
+  return true
+}
+```
+
+#### Verification Steps
+- [ ] Wallet signatures verified
+- [ ] Transaction details validated
+- [ ] Balance checks before transactions
+- [ ] No blind transaction signing
+
+### 10. Dependency Security
+
+#### Regular Updates
+```bash
+# Check for vulnerabilities
+npm audit
+
+# Fix automatically fixable issues
+npm audit fix
+
+# Update dependencies
+npm update
+
+# Check for outdated packages
+npm outdated
+```
+
+#### Lock Files
+```bash
+# ALWAYS commit lock files
+git add package-lock.json
+
+# Use in CI/CD for reproducible builds
+npm ci  # Instead of npm install
+```
+
+#### Verification Steps
+- [ ] Dependencies up to date
+- [ ] No known vulnerabilities (npm audit clean)
+- [ ] Lock files committed
+- [ ] Dependabot enabled on GitHub
+- [ ] Regular security updates
+
+## Security Testing
+
+### Automated Security Tests
+```typescript
+// Test authentication
+test('requires authentication', async () => {
+  const response = await fetch('/api/protected')
+  expect(response.status).toBe(401)
+})
+
+// Test authorization
+test('requires admin role', async () => {
+  const response = await fetch('/api/admin', {
+    headers: { Authorization: `Bearer ${userToken}` }
+  })
+  expect(response.status).toBe(403)
+})
+
+// Test input validation
+test('rejects invalid input', async () => {
+  const response = await fetch('/api/users', {
+    method: 'POST',
+    body: JSON.stringify({ email: 'not-an-email' })
+  })
+  expect(response.status).toBe(400)
+})
+
+// Test rate limiting
+test('enforces rate limits', async () => {
+  const requests = Array(101).fill(null).map(() =>
+    fetch('/api/endpoint')
+  )
+
+  const responses = await Promise.all(requests)
+  const tooManyRequests = responses.filter(r => r.status === 429)
+
+  expect(tooManyRequests.length).toBeGreaterThan(0)
+})
+```
+
+## Pre-Deployment Security Checklist
+
+Before ANY production deployment:
+
+- [ ] **Secrets**: No hardcoded secrets, all in env vars
+- [ ] **Input Validation**: All user inputs validated
+- [ ] **SQL Injection**: All queries parameterized
+- [ ] **XSS**: User content sanitized
+- [ ] **CSRF**: Protection enabled
+- [ ] **Authentication**: Proper token handling
+- [ ] **Authorization**: Role checks in place
+- [ ] **Rate Limiting**: Enabled on all endpoints
+- [ ] **HTTPS**: Enforced in production
+- [ ] **Security Headers**: CSP, X-Frame-Options configured
+- [ ] **Error Handling**: No sensitive data in errors
+- [ ] **Logging**: No sensitive data logged
+- [ ] **Dependencies**: Up to date, no vulnerabilities
+- [ ] **Row Level Security**: Enabled in Supabase
+- [ ] **CORS**: Properly configured
+- [ ] **File Uploads**: Validated (size, type)
+- [ ] **Wallet Signatures**: Verified (if blockchain)
+
+## Resources
+
+- [OWASP Top 10](https://owasp.org/www-project-top-ten/)
+- [Next.js Security](https://nextjs.org/docs/security)
+- [Supabase Security](https://supabase.com/docs/guides/auth)
+- [Web Security Academy](https://portswigger.net/web-security)
+
+---
+
+**Remember**: Security is not optional. One vulnerability can compromise the entire platform. When in doubt, err on the side of caution.
--- a/skills/security-review/cloud-infrastructure-security.md
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@@ -0,0 +1,361 @@
+| name | description |
+|------|-------------|
+| cloud-infrastructure-security | Use this skill when deploying to cloud platforms, configuring infrastructure, managing IAM policies, setting up logging/monitoring, or implementing CI/CD pipelines. Provides cloud security checklist aligned with best practices. |
+
+# Cloud & Infrastructure Security Skill
+
+This skill ensures cloud infrastructure, CI/CD pipelines, and deployment configurations follow security best practices and comply with industry standards.
+
+## When to Activate
+
+- Deploying applications to cloud platforms (AWS, Vercel, Railway, Cloudflare)
+- Configuring IAM roles and permissions
+- Setting up CI/CD pipelines
+- Implementing infrastructure as code (Terraform, CloudFormation)
+- Configuring logging and monitoring
+- Managing secrets in cloud environments
+- Setting up CDN and edge security
+- Implementing disaster recovery and backup strategies
+
+## Cloud Security Checklist
+
+### 1. IAM & Access Control
+
+#### Principle of Least Privilege
+
+```yaml
+# ✅ CORRECT: Minimal permissions
+iam_role:
+  permissions:
+    - s3:GetObject  # Only read access
+    - s3:ListBucket
+  resources:
+    - arn:aws:s3:::my-bucket/*  # Specific bucket only
+
+# ❌ WRONG: Overly broad permissions
+iam_role:
+  permissions:
+    - s3:*  # All S3 actions
+  resources:
+    - "*"  # All resources
+```
+
+#### Multi-Factor Authentication (MFA)
+
+```bash
+# ALWAYS enable MFA for root/admin accounts
+aws iam enable-mfa-device \
+  --user-name admin \
+  --serial-number arn:aws:iam::123456789:mfa/admin \
+  --authentication-code1 123456 \
+  --authentication-code2 789012
+```
+
+#### Verification Steps
+
+- [ ] No root account usage in production
+- [ ] MFA enabled for all privileged accounts
+- [ ] Service accounts use roles, not long-lived credentials
+- [ ] IAM policies follow least privilege
+- [ ] Regular access reviews conducted
+- [ ] Unused credentials rotated or removed
+
+### 2. Secrets Management
+
+#### Cloud Secrets Managers
+
+```typescript
+// ✅ CORRECT: Use cloud secrets manager
+import { SecretsManager } from '@aws-sdk/client-secrets-manager';
+
+const client = new SecretsManager({ region: 'us-east-1' });
+const secret = await client.getSecretValue({ SecretId: 'prod/api-key' });
+const apiKey = JSON.parse(secret.SecretString).key;
+
+// ❌ WRONG: Hardcoded or in environment variables only
+const apiKey = process.env.API_KEY; // Not rotated, not audited
+```
+
+#### Secrets Rotation
+
+```bash
+# Set up automatic rotation for database credentials
+aws secretsmanager rotate-secret \
+  --secret-id prod/db-password \
+  --rotation-lambda-arn arn:aws:lambda:region:account:function:rotate \
+  --rotation-rules AutomaticallyAfterDays=30
+```
+
+#### Verification Steps
+
+- [ ] All secrets stored in cloud secrets manager (AWS Secrets Manager, Vercel Secrets)
+- [ ] Automatic rotation enabled for database credentials
+- [ ] API keys rotated at least quarterly
+- [ ] No secrets in code, logs, or error messages
+- [ ] Audit logging enabled for secret access
+
+### 3. Network Security
+
+#### VPC and Firewall Configuration
+
+```terraform
+# ✅ CORRECT: Restricted security group
+resource "aws_security_group" "app" {
+  name = "app-sg"
+  
+  ingress {
+    from_port   = 443
+    to_port     = 443
+    protocol    = "tcp"
+    cidr_blocks = ["10.0.0.0/16"]  # Internal VPC only
+  }
+  
+  egress {
+    from_port   = 443
+    to_port     = 443
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]  # Only HTTPS outbound
+  }
+}
+
+# ❌ WRONG: Open to the internet
+resource "aws_security_group" "bad" {
+  ingress {
+    from_port   = 0
+    to_port     = 65535
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]  # All ports, all IPs!
+  }
+}
+```
+
+#### Verification Steps
+
+- [ ] Database not publicly accessible
+- [ ] SSH/RDP ports restricted to VPN/bastion only
+- [ ] Security groups follow least privilege
+- [ ] Network ACLs configured
+- [ ] VPC flow logs enabled
+
+### 4. Logging & Monitoring
+
+#### CloudWatch/Logging Configuration
+
+```typescript
+// ✅ CORRECT: Comprehensive logging
+import { CloudWatchLogsClient, CreateLogStreamCommand } from '@aws-sdk/client-cloudwatch-logs';
+
+const logSecurityEvent = async (event: SecurityEvent) => {
+  await cloudwatch.putLogEvents({
+    logGroupName: '/aws/security/events',
+    logStreamName: 'authentication',
+    logEvents: [{
+      timestamp: Date.now(),
+      message: JSON.stringify({
+        type: event.type,
+        userId: event.userId,
+        ip: event.ip,
+        result: event.result,
+        // Never log sensitive data
+      })
+    }]
+  });
+};
+```
+
+#### Verification Steps
+
+- [ ] CloudWatch/logging enabled for all services
+- [ ] Failed authentication attempts logged
+- [ ] Admin actions audited
+- [ ] Log retention configured (90+ days for compliance)
+- [ ] Alerts configured for suspicious activity
+- [ ] Logs centralized and tamper-proof
+
+### 5. CI/CD Pipeline Security
+
+#### Secure Pipeline Configuration
+
+```yaml
+# ✅ CORRECT: Secure GitHub Actions workflow
+name: Deploy
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read  # Minimal permissions
+      
+    steps:
+      - uses: actions/checkout@v4
+      
+      # Scan for secrets
+      - name: Secret scanning
+        uses: trufflesecurity/trufflehog@main
+        
+      # Dependency audit
+      - name: Audit dependencies
+        run: npm audit --audit-level=high
+        
+      # Use OIDC, not long-lived tokens
+      - name: Configure AWS credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: arn:aws:iam::123456789:role/GitHubActionsRole
+          aws-region: us-east-1
+```
+
+#### Supply Chain Security
+
+```json
+// package.json - Use lock files and integrity checks
+{
+  "scripts": {
+    "install": "npm ci",  // Use ci for reproducible builds
+    "audit": "npm audit --audit-level=moderate",
+    "check": "npm outdated"
+  }
+}
+```
+
+#### Verification Steps
+
+- [ ] OIDC used instead of long-lived credentials
+- [ ] Secrets scanning in pipeline
+- [ ] Dependency vulnerability scanning
+- [ ] Container image scanning (if applicable)
+- [ ] Branch protection rules enforced
+- [ ] Code review required before merge
+- [ ] Signed commits enforced
+
+### 6. Cloudflare & CDN Security
+
+#### Cloudflare Security Configuration
+
+```typescript
+// ✅ CORRECT: Cloudflare Workers with security headers
+export default {
+  async fetch(request: Request): Promise<Response> {
+    const response = await fetch(request);
+    
+    // Add security headers
+    const headers = new Headers(response.headers);
+    headers.set('X-Frame-Options', 'DENY');
+    headers.set('X-Content-Type-Options', 'nosniff');
+    headers.set('Referrer-Policy', 'strict-origin-when-cross-origin');
+    headers.set('Permissions-Policy', 'geolocation=(), microphone=()');
+    
+    return new Response(response.body, {
+      status: response.status,
+      headers
+    });
+  }
+};
+```
+
+#### WAF Rules
+
+```bash
+# Enable Cloudflare WAF managed rules
+# - OWASP Core Ruleset
+# - Cloudflare Managed Ruleset
+# - Rate limiting rules
+# - Bot protection
+```
+
+#### Verification Steps
+
+- [ ] WAF enabled with OWASP rules
+- [ ] Rate limiting configured
+- [ ] Bot protection active
+- [ ] DDoS protection enabled
+- [ ] Security headers configured
+- [ ] SSL/TLS strict mode enabled
+
+### 7. Backup & Disaster Recovery
+
+#### Automated Backups
+
+```terraform
+# ✅ CORRECT: Automated RDS backups
+resource "aws_db_instance" "main" {
+  allocated_storage     = 20
+  engine               = "postgres"
+  
+  backup_retention_period = 30  # 30 days retention
+  backup_window          = "03:00-04:00"
+  maintenance_window     = "mon:04:00-mon:05:00"
+  
+  enabled_cloudwatch_logs_exports = ["postgresql"]
+  
+  deletion_protection = true  # Prevent accidental deletion
+}
+```
+
+#### Verification Steps
+
+- [ ] Automated daily backups configured
+- [ ] Backup retention meets compliance requirements
+- [ ] Point-in-time recovery enabled
+- [ ] Backup testing performed quarterly
+- [ ] Disaster recovery plan documented
+- [ ] RPO and RTO defined and tested
+
+## Pre-Deployment Cloud Security Checklist
+
+Before ANY production cloud deployment:
+
+- [ ] **IAM**: Root account not used, MFA enabled, least privilege policies
+- [ ] **Secrets**: All secrets in cloud secrets manager with rotation
+- [ ] **Network**: Security groups restricted, no public databases
+- [ ] **Logging**: CloudWatch/logging enabled with retention
+- [ ] **Monitoring**: Alerts configured for anomalies
+- [ ] **CI/CD**: OIDC auth, secrets scanning, dependency audits
+- [ ] **CDN/WAF**: Cloudflare WAF enabled with OWASP rules
+- [ ] **Encryption**: Data encrypted at rest and in transit
+- [ ] **Backups**: Automated backups with tested recovery
+- [ ] **Compliance**: GDPR/HIPAA requirements met (if applicable)
+- [ ] **Documentation**: Infrastructure documented, runbooks created
+- [ ] **Incident Response**: Security incident plan in place
+
+## Common Cloud Security Misconfigurations
+
+### S3 Bucket Exposure
+
+```bash
+# ❌ WRONG: Public bucket
+aws s3api put-bucket-acl --bucket my-bucket --acl public-read
+
+# ✅ CORRECT: Private bucket with specific access
+aws s3api put-bucket-acl --bucket my-bucket --acl private
+aws s3api put-bucket-policy --bucket my-bucket --policy file://policy.json
+```
+
+### RDS Public Access
+
+```terraform
+# ❌ WRONG
+resource "aws_db_instance" "bad" {
+  publicly_accessible = true  # NEVER do this!
+}
+
+# ✅ CORRECT
+resource "aws_db_instance" "good" {
+  publicly_accessible = false
+  vpc_security_group_ids = [aws_security_group.db.id]
+}
+```
+
+## Resources
+
+- [AWS Security Best Practices](https://aws.amazon.com/security/best-practices/)
+- [CIS AWS Foundations Benchmark](https://www.cisecurity.org/benchmark/amazon_web_services)
+- [Cloudflare Security Documentation](https://developers.cloudflare.com/security/)
+- [OWASP Cloud Security](https://owasp.org/www-project-cloud-security/)
+- [Terraform Security Best Practices](https://www.terraform.io/docs/cloud/guides/recommended-practices/)
+
+**Remember**: Cloud misconfigurations are the leading cause of data breaches. A single exposed S3 bucket or overly permissive IAM policy can compromise your entire infrastructure. Always follow the principle of least privilege and defense in depth.