[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M7AF4RPMSZY7KVFFDSFE7FSG":3,"skill-same:01M7AF4RPMSZY7KVFFDSFE7FSG":53},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":16,"categories":17,"keywords":18,"publishedAt":19,"linkOnly":20,"markdownContent":21,"markdownBody":22,"frontMatter":23,"refName":24,"commitSha":25,"skillDirectory":26,"forksCount":27,"repositoryHtmlUrl":28,"repositoryHomepageUrl":6,"ownerHtmlUrl":29,"ownerBlogUrl":30,"ownerDescription":31,"updatedAt":32,"install":33,"resources":46},"01M7AF4RPMSZY7KVFFDSFE7FSG","security-review",null,"Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment\u002Fsensitive features. Provides comprehensive security checklist and patterns.","Cyrilthetecchieee\u002Fcyril-code-","Cyrilthetecchieee","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F219787998?v=4","01M7AF0MMMKRAA0H61XMJPV92H","Julian Cyril D ","01M7AF0MQ10AVG6QJQ1C2BC0F5",2,"MIT","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002F.agents\u002Fskills\u002Fsecurity-review\u002FSKILL.md",[],[],"2026-11-15 14:19:17",false,"---\nname: security-review\ndescription: Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment\u002Fsensitive features. Provides comprehensive security checklist and patterns.\n---\n\n# Security Review Skill\n\nThis skill ensures all code follows security best practices and identifies potential vulnerabilities.\n\n## When to Activate\n\n- Implementing authentication or authorization\n- Handling user input or file uploads\n- Creating new API endpoints\n- Working with secrets or credentials\n- Implementing payment features\n- Storing or transmitting sensitive data\n- Integrating third-party APIs\n\n## Security Checklist\n\n### 1. Secrets Management\n\n#### FAIL: NEVER Do This\n```typescript\nconst apiKey = \"sk-proj-xxxxx\"  \u002F\u002F Hardcoded secret\nconst dbPassword = \"password123\" \u002F\u002F In source code\n```\n\n#### PASS: ALWAYS Do This\n```typescript\nconst apiKey = process.env.OPENAI_API_KEY\nconst dbUrl = process.env.DATABASE_URL\n\n\u002F\u002F Verify secrets exist\nif (!apiKey) {\n  throw new Error('OPENAI_API_KEY not configured')\n}\n```\n\n#### Verification Steps\n- [ ] No hardcoded API keys, tokens, or passwords\n- [ ] All secrets in environment variables\n- [ ] `.env.local` in .gitignore\n- [ ] No secrets in git history\n- [ ] Production secrets in hosting platform (Vercel, Railway)\n\n### 2. Input Validation\n\n#### Always Validate User Input\n```typescript\nimport { z } from 'zod'\n\n\u002F\u002F Define validation schema\nconst CreateUserSchema = z.object({\n  email: z.string().email(),\n  name: z.string().min(1).max(100),\n  age: z.number().int().min(0).max(150)\n})\n\n\u002F\u002F Validate before processing\nexport async function createUser(input: unknown) {\n  try {\n    const validated = CreateUserSchema.parse(input)\n    return await db.users.create(validated)\n  } catch (error) {\n    if (error instanceof z.ZodError) {\n      return { success: false, errors: error.errors }\n    }\n    throw error\n  }\n}\n```\n\n#### File Upload Validation\n```typescript\nfunction validateFileUpload(file: File) {\n  \u002F\u002F Size check (5MB max)\n  const maxSize = 5 * 1024 * 1024\n  if (file.size > maxSize) {\n    throw new Error('File too large (max 5MB)')\n  }\n\n  \u002F\u002F Type check\n  const allowedTypes = ['image\u002Fjpeg', 'image\u002Fpng', 'image\u002Fgif']\n  if (!allowedTypes.includes(file.type)) {\n    throw new Error('Invalid file type')\n  }\n\n  \u002F\u002F Extension check\n  const allowedExtensions = ['.jpg', '.jpeg', '.png', '.gif']\n  const extension = file.name.toLowerCase().match(\u002F\\.[^.]+$\u002F)?.[0]\n  if (!extension || !allowedExtensions.includes(extension)) {\n    throw new Error('Invalid file extension')\n  }\n\n  return true\n}\n```\n\n#### Verification Steps\n- [ ] All user inputs validated with schemas\n- [ ] File uploads restricted (size, type, extension)\n- [ ] No direct use of user input in queries\n- [ ] Whitelist validation (not blacklist)\n- [ ] Error messages don't leak sensitive info\n\n### 3. SQL Injection Prevention\n\n#### FAIL: NEVER Concatenate SQL\n```typescript\n\u002F\u002F DANGEROUS - SQL Injection vulnerability\nconst query = `SELECT * FROM users WHERE email = '${userEmail}'`\nawait db.query(query)\n```\n\n#### PASS: ALWAYS Use Parameterized Queries\n```typescript\n\u002F\u002F Safe - parameterized query\nconst { data } = await supabase\n  .from('users')\n  .select('*')\n  .eq('email', userEmail)\n\n\u002F\u002F Or with raw SQL\nawait db.query(\n  'SELECT * FROM users WHERE email = $1',\n  [userEmail]\n)\n```\n\n#### Verification Steps\n- [ ] All database queries use parameterized queries\n- [ ] No string concatenation in SQL\n- [ ] ORM\u002Fquery builder used correctly\n- [ ] Supabase queries properly sanitized\n\n### 4. Authentication & Authorization\n\n#### JWT Token Handling\n```typescript\n\u002F\u002F FAIL: WRONG: localStorage (vulnerable to XSS)\nlocalStorage.setItem('token', token)\n\n\u002F\u002F PASS: CORRECT: httpOnly cookies\nres.setHeader('Set-Cookie',\n  `token=${token}; HttpOnly; Secure; SameSite=Strict; Max-Age=3600`)\n```\n\n#### Authorization Checks\n```typescript\nexport async function deleteUser(userId: string, requesterId: string) {\n  \u002F\u002F ALWAYS verify authorization first\n  const requester = await db.users.findUnique({\n    where: { id: requesterId }\n  })\n\n  if (requester.role !== 'admin') {\n    return NextResponse.json(\n      { error: 'Unauthorized' },\n      { status: 403 }\n    )\n  }\n\n  \u002F\u002F Proceed with deletion\n  await db.users.delete({ where: { id: userId } })\n}\n```\n\n#### Row Level Security (Supabase)\n```sql\n-- Enable RLS on all tables\nALTER TABLE users ENABLE ROW LEVEL SECURITY;\n\n-- Users can only view their own data\nCREATE POLICY \"Users view own data\"\n  ON users FOR SELECT\n  USING (auth.uid() = id);\n\n-- Users can only update their own data\nCREATE POLICY \"Users update own data\"\n  ON users FOR UPDATE\n  USING (auth.uid() = id);\n```\n\n#### Verification Steps\n- [ ] Tokens stored in httpOnly cookies (not localStorage)\n- [ ] Authorization checks before sensitive operations\n- [ ] Row Level Security enabled in Supabase\n- [ ] Role-based access control implemented\n- [ ] Session management secure\n\n### 5. XSS Prevention\n\n#### Sanitize HTML\n```typescript\nimport DOMPurify from 'isomorphic-dompurify'\n\n\u002F\u002F ALWAYS sanitize user-provided HTML\nfunction renderUserContent(html: string) {\n  const clean = DOMPurify.sanitize(html, {\n    ALLOWED_TAGS: ['b', 'i', 'em', 'strong', 'p'],\n    ALLOWED_ATTR: []\n  })\n  return \u003Cdiv dangerouslySetInnerHTML={{ __html: clean }} \u002F>\n}\n```\n\n#### Content Security Policy\n```typescript\n\u002F\u002F next.config.js\nconst securityHeaders = [\n  {\n    key: 'Content-Security-Policy',\n    value: `\n      default-src 'self';\n      script-src 'self' 'unsafe-eval' 'unsafe-inline';\n      style-src 'self' 'unsafe-inline';\n      img-src 'self' data: https:;\n      font-src 'self';\n      connect-src 'self' https:\u002F\u002Fapi.example.com;\n    `.replace(\u002F\\s{2,}\u002Fg, ' ').trim()\n  }\n]\n```\n\n#### Verification Steps\n- [ ] User-provided HTML sanitized\n- [ ] CSP headers configured\n- [ ] No unvalidated dynamic content rendering\n- [ ] React's built-in XSS protection used\n\n### 6. CSRF Protection\n\n#### CSRF Tokens\n```typescript\nimport { csrf } from '@\u002Flib\u002Fcsrf'\n\nexport async function POST(request: Request) {\n  const token = request.headers.get('X-CSRF-Token')\n\n  if (!csrf.verify(token)) {\n    return NextResponse.json(\n      { error: 'Invalid CSRF token' },\n      { status: 403 }\n    )\n  }\n\n  \u002F\u002F Process request\n}\n```\n\n#### SameSite Cookies\n```typescript\nres.setHeader('Set-Cookie',\n  `session=${sessionId}; HttpOnly; Secure; SameSite=Strict`)\n```\n\n#### Verification Steps\n- [ ] CSRF tokens on state-changing operations\n- [ ] SameSite=Strict on all cookies\n- [ ] Double-submit cookie pattern implemented\n\n### 7. Rate Limiting\n\n#### API Rate Limiting\n```typescript\nimport rateLimit from 'express-rate-limit'\n\nconst limiter = rateLimit({\n  windowMs: 15 * 60 * 1000, \u002F\u002F 15 minutes\n  max: 100, \u002F\u002F 100 requests per window\n  message: 'Too many requests'\n})\n\n\u002F\u002F Apply to routes\napp.use('\u002Fapi\u002F', limiter)\n```\n\n#### Expensive Operations\n```typescript\n\u002F\u002F Aggressive rate limiting for searches\nconst searchLimiter = rateLimit({\n  windowMs: 60 * 1000, \u002F\u002F 1 minute\n  max: 10, \u002F\u002F 10 requests per minute\n  message: 'Too many search requests'\n})\n\napp.use('\u002Fapi\u002Fsearch', searchLimiter)\n```\n\n#### Verification Steps\n- [ ] Rate limiting on all API endpoints\n- [ ] Stricter limits on expensive operations\n- [ ] IP-based rate limiting\n- [ ] User-based rate limiting (authenticated)\n\n### 8. Sensitive Data Exposure\n\n#### Logging\n```typescript\n\u002F\u002F FAIL: WRONG: Logging sensitive data\nconsole.log('User login:', { email, password })\nconsole.log('Payment:', { cardNumber, cvv })\n\n\u002F\u002F PASS: CORRECT: Redact sensitive data\nconsole.log('User login:', { email, userId })\nconsole.log('Payment:', { last4: card.last4, userId })\n```\n\n#### Error Messages\n```typescript\n\u002F\u002F FAIL: WRONG: Exposing internal details\ncatch (error) {\n  return NextResponse.json(\n    { error: error.message, stack: error.stack },\n    { status: 500 }\n  )\n}\n\n\u002F\u002F PASS: CORRECT: Generic error messages\ncatch (error) {\n  console.error('Internal error:', error)\n  return NextResponse.json(\n    { error: 'An error occurred. Please try again.' },\n    { status: 500 }\n  )\n}\n```\n\n#### Verification Steps\n- [ ] No passwords, tokens, or secrets in logs\n- [ ] Error messages generic for users\n- [ ] Detailed errors only in server logs\n- [ ] No stack traces exposed to users\n\n### 9. Blockchain Security (Solana)\n\n#### Wallet Verification\n```typescript\nimport { verify } from '@solana\u002Fweb3.js'\n\nasync function verifyWalletOwnership(\n  publicKey: string,\n  signature: string,\n  message: string\n) {\n  try {\n    const isValid = verify(\n      Buffer.from(message),\n      Buffer.from(signature, 'base64'),\n      Buffer.from(publicKey, 'base64')\n    )\n    return isValid\n  } catch (error) {\n    return false\n  }\n}\n```\n\n#### Transaction Verification\n```typescript\nasync function verifyTransaction(transaction: Transaction) {\n  \u002F\u002F Verify recipient\n  if (transaction.to !== expectedRecipient) {\n    throw new Error('Invalid recipient')\n  }\n\n  \u002F\u002F Verify amount\n  if (transaction.amount > maxAmount) {\n    throw new Error('Amount exceeds limit')\n  }\n\n  \u002F\u002F Verify user has sufficient balance\n  const balance = await getBalance(transaction.from)\n  if (balance \u003C transaction.amount) {\n    throw new Error('Insufficient balance')\n  }\n\n  return true\n}\n```\n\n#### Verification Steps\n- [ ] Wallet signatures verified\n- [ ] Transaction details validated\n- [ ] Balance checks before transactions\n- [ ] No blind transaction signing\n\n### 10. Dependency Security\n\n#### Regular Updates\n```bash\n# Check for vulnerabilities\nnpm audit\n\n# Fix automatically fixable issues\nnpm audit fix\n\n# Update dependencies\nnpm update\n\n# Check for outdated packages\nnpm outdated\n```\n\n#### Lock Files\n```bash\n# ALWAYS commit lock files\ngit add package-lock.json\n\n# Use in CI\u002FCD for reproducible builds\nnpm ci  # Instead of npm install\n```\n\n#### Verification Steps\n- [ ] Dependencies up to date\n- [ ] No known vulnerabilities (npm audit clean)\n- [ ] Lock files committed\n- [ ] Dependabot enabled on GitHub\n- [ ] Regular security updates\n\n## Security Testing\n\n### Automated Security Tests\n```typescript\n\u002F\u002F Test authentication\ntest('requires authentication', async () => {\n  const response = await fetch('\u002Fapi\u002Fprotected')\n  expect(response.status).toBe(401)\n})\n\n\u002F\u002F Test authorization\ntest('requires admin role', async () => {\n  const response = await fetch('\u002Fapi\u002Fadmin', {\n    headers: { Authorization: `Bearer ${userToken}` }\n  })\n  expect(response.status).toBe(403)\n})\n\n\u002F\u002F Test input validation\ntest('rejects invalid input', async () => {\n  const response = await fetch('\u002Fapi\u002Fusers', {\n    method: 'POST',\n    body: JSON.stringify({ email: 'not-an-email' })\n  })\n  expect(response.status).toBe(400)\n})\n\n\u002F\u002F Test rate limiting\ntest('enforces rate limits', async () => {\n  const requests = Array(101).fill(null).map(() =>\n    fetch('\u002Fapi\u002Fendpoint')\n  )\n\n  const responses = await Promise.all(requests)\n  const tooManyRequests = responses.filter(r => r.status === 429)\n\n  expect(tooManyRequests.length).toBeGreaterThan(0)\n})\n```\n\n## Pre-Deployment Security Checklist\n\nBefore ANY production deployment:\n\n- [ ] **Secrets**: No hardcoded secrets, all in env vars\n- [ ] **Input Validation**: All user inputs validated\n- [ ] **SQL Injection**: All queries parameterized\n- [ ] **XSS**: User content sanitized\n- [ ] **CSRF**: Protection enabled\n- [ ] **Authentication**: Proper token handling\n- [ ] **Authorization**: Role checks in place\n- [ ] **Rate Limiting**: Enabled on all endpoints\n- [ ] **HTTPS**: Enforced in production\n- [ ] **Security Headers**: CSP, X-Frame-Options configured\n- [ ] **Error Handling**: No sensitive data in errors\n- [ ] **Logging**: No sensitive data logged\n- [ ] **Dependencies**: Up to date, no vulnerabilities\n- [ ] **Row Level Security**: Enabled in Supabase\n- [ ] **CORS**: Properly configured\n- [ ] **File Uploads**: Validated (size, type)\n- [ ] **Wallet Signatures**: Verified (if blockchain)\n\n## Resources\n\n- [OWASP Top 10](https:\u002F\u002Fowasp.org\u002Fwww-project-top-ten\u002F)\n- [Next.js Security](https:\u002F\u002Fnextjs.org\u002Fdocs\u002Fsecurity)\n- [Supabase Security](https:\u002F\u002Fsupabase.com\u002Fdocs\u002Fguides\u002Fauth)\n- [Web Security Academy](https:\u002F\u002Fportswigger.net\u002Fweb-security)\n\n---\n\n**Remember**: Security is not optional. One vulnerability can compromise the entire platform. When in doubt, err on the side of caution.\n","# Security Review Skill\n\nThis skill ensures all code follows security best practices and identifies potential vulnerabilities.\n\n## When to Activate\n\n- Implementing authentication or authorization\n- Handling user input or file uploads\n- Creating new API endpoints\n- Working with secrets or credentials\n- Implementing payment features\n- Storing or transmitting sensitive data\n- Integrating third-party APIs\n\n## Security Checklist\n\n### 1. Secrets Management\n\n#### FAIL: NEVER Do This\n```typescript\nconst apiKey = \"sk-proj-xxxxx\"  \u002F\u002F Hardcoded secret\nconst dbPassword = \"password123\" \u002F\u002F In source code\n```\n\n#### PASS: ALWAYS Do This\n```typescript\nconst apiKey = process.env.OPENAI_API_KEY\nconst dbUrl = process.env.DATABASE_URL\n\n\u002F\u002F Verify secrets exist\nif (!apiKey) {\n  throw new Error('OPENAI_API_KEY not configured')\n}\n```\n\n#### Verification Steps\n- [ ] No hardcoded API keys, tokens, or passwords\n- [ ] All secrets in environment variables\n- [ ] `.env.local` in .gitignore\n- [ ] No secrets in git history\n- [ ] Production secrets in hosting platform (Vercel, Railway)\n\n### 2. Input Validation\n\n#### Always Validate User Input\n```typescript\nimport { z } from 'zod'\n\n\u002F\u002F Define validation schema\nconst CreateUserSchema = z.object({\n  email: z.string().email(),\n  name: z.string().min(1).max(100),\n  age: z.number().int().min(0).max(150)\n})\n\n\u002F\u002F Validate before processing\nexport async function createUser(input: unknown) {\n  try {\n    const validated = CreateUserSchema.parse(input)\n    return await db.users.create(validated)\n  } catch (error) {\n    if (error instanceof z.ZodError) {\n      return { success: false, errors: error.errors }\n    }\n    throw error\n  }\n}\n```\n\n#### File Upload Validation\n```typescript\nfunction validateFileUpload(file: File) {\n  \u002F\u002F Size check (5MB max)\n  const maxSize = 5 * 1024 * 1024\n  if (file.size > maxSize) {\n    throw new Error('File too large (max 5MB)')\n  }\n\n  \u002F\u002F Type check\n  const allowedTypes = ['image\u002Fjpeg', 'image\u002Fpng', 'image\u002Fgif']\n  if (!allowedTypes.includes(file.type)) {\n    throw new Error('Invalid file type')\n  }\n\n  \u002F\u002F Extension check\n  const allowedExtensions = ['.jpg', '.jpeg', '.png', '.gif']\n  const extension = file.name.toLowerCase().match(\u002F\\.[^.]+$\u002F)?.[0]\n  if (!extension || !allowedExtensions.includes(extension)) {\n    throw new Error('Invalid file extension')\n  }\n\n  return true\n}\n```\n\n#### Verification Steps\n- [ ] All user inputs validated with schemas\n- [ ] File uploads restricted (size, type, extension)\n- [ ] No direct use of user input in queries\n- [ ] Whitelist validation (not blacklist)\n- [ ] Error messages don't leak sensitive info\n\n### 3. SQL Injection Prevention\n\n#### FAIL: NEVER Concatenate SQL\n```typescript\n\u002F\u002F DANGEROUS - SQL Injection vulnerability\nconst query = `SELECT * FROM users WHERE email = '${userEmail}'`\nawait db.query(query)\n```\n\n#### PASS: ALWAYS Use Parameterized Queries\n```typescript\n\u002F\u002F Safe - parameterized query\nconst { data } = await supabase\n  .from('users')\n  .select('*')\n  .eq('email', userEmail)\n\n\u002F\u002F Or with raw SQL\nawait db.query(\n  'SELECT * FROM users WHERE email = $1',\n  [userEmail]\n)\n```\n\n#### Verification Steps\n- [ ] All database queries use parameterized queries\n- [ ] No string concatenation in SQL\n- [ ] ORM\u002Fquery builder used correctly\n- [ ] Supabase queries properly sanitized\n\n### 4. Authentication & Authorization\n\n#### JWT Token Handling\n```typescript\n\u002F\u002F FAIL: WRONG: localStorage (vulnerable to XSS)\nlocalStorage.setItem('token', token)\n\n\u002F\u002F PASS: CORRECT: httpOnly cookies\nres.setHeader('Set-Cookie',\n  `token=${token}; HttpOnly; Secure; SameSite=Strict; Max-Age=3600`)\n```\n\n#### Authorization Checks\n```typescript\nexport async function deleteUser(userId: string, requesterId: string) {\n  \u002F\u002F ALWAYS verify authorization first\n  const requester = await db.users.findUnique({\n    where: { id: requesterId }\n  })\n\n  if (requester.role !== 'admin') {\n    return NextResponse.json(\n      { error: 'Unauthorized' },\n      { status: 403 }\n    )\n  }\n\n  \u002F\u002F Proceed with deletion\n  await db.users.delete({ where: { id: userId } })\n}\n```\n\n#### Row Level Security (Supabase)\n```sql\n-- Enable RLS on all tables\nALTER TABLE users ENABLE ROW LEVEL SECURITY;\n\n-- Users can only view their own data\nCREATE POLICY \"Users view own data\"\n  ON users FOR SELECT\n  USING (auth.uid() = id);\n\n-- Users can only update their own data\nCREATE POLICY \"Users update own data\"\n  ON users FOR UPDATE\n  USING (auth.uid() = id);\n```\n\n#### Verification Steps\n- [ ] Tokens stored in httpOnly cookies (not localStorage)\n- [ ] Authorization checks before sensitive operations\n- [ ] Row Level Security enabled in Supabase\n- [ ] Role-based access control implemented\n- [ ] Session management secure\n\n### 5. XSS Prevention\n\n#### Sanitize HTML\n```typescript\nimport DOMPurify from 'isomorphic-dompurify'\n\n\u002F\u002F ALWAYS sanitize user-provided HTML\nfunction renderUserContent(html: string) {\n  const clean = DOMPurify.sanitize(html, {\n    ALLOWED_TAGS: ['b', 'i', 'em', 'strong', 'p'],\n    ALLOWED_ATTR: []\n  })\n  return \u003Cdiv dangerouslySetInnerHTML={{ __html: clean }} \u002F>\n}\n```\n\n#### Content Security Policy\n```typescript\n\u002F\u002F next.config.js\nconst securityHeaders = [\n  {\n    key: 'Content-Security-Policy',\n    value: `\n      default-src 'self';\n      script-src 'self' 'unsafe-eval' 'unsafe-inline';\n      style-src 'self' 'unsafe-inline';\n      img-src 'self' data: https:;\n      font-src 'self';\n      connect-src 'self' https:\u002F\u002Fapi.example.com;\n    `.replace(\u002F\\s{2,}\u002Fg, ' ').trim()\n  }\n]\n```\n\n#### Verification Steps\n- [ ] User-provided HTML sanitized\n- [ ] CSP headers configured\n- [ ] No unvalidated dynamic content rendering\n- [ ] React's built-in XSS protection used\n\n### 6. CSRF Protection\n\n#### CSRF Tokens\n```typescript\nimport { csrf } from '@\u002Flib\u002Fcsrf'\n\nexport async function POST(request: Request) {\n  const token = request.headers.get('X-CSRF-Token')\n\n  if (!csrf.verify(token)) {\n    return NextResponse.json(\n      { error: 'Invalid CSRF token' },\n      { status: 403 }\n    )\n  }\n\n  \u002F\u002F Process request\n}\n```\n\n#### SameSite Cookies\n```typescript\nres.setHeader('Set-Cookie',\n  `session=${sessionId}; HttpOnly; Secure; SameSite=Strict`)\n```\n\n#### Verification Steps\n- [ ] CSRF tokens on state-changing operations\n- [ ] SameSite=Strict on all cookies\n- [ ] Double-submit cookie pattern implemented\n\n### 7. Rate Limiting\n\n#### API Rate Limiting\n```typescript\nimport rateLimit from 'express-rate-limit'\n\nconst limiter = rateLimit({\n  windowMs: 15 * 60 * 1000, \u002F\u002F 15 minutes\n  max: 100, \u002F\u002F 100 requests per window\n  message: 'Too many requests'\n})\n\n\u002F\u002F Apply to routes\napp.use('\u002Fapi\u002F', limiter)\n```\n\n#### Expensive Operations\n```typescript\n\u002F\u002F Aggressive rate limiting for searches\nconst searchLimiter = rateLimit({\n  windowMs: 60 * 1000, \u002F\u002F 1 minute\n  max: 10, \u002F\u002F 10 requests per minute\n  message: 'Too many search requests'\n})\n\napp.use('\u002Fapi\u002Fsearch', searchLimiter)\n```\n\n#### Verification Steps\n- [ ] Rate limiting on all API endpoints\n- [ ] Stricter limits on expensive operations\n- [ ] IP-based rate limiting\n- [ ] User-based rate limiting (authenticated)\n\n### 8. Sensitive Data Exposure\n\n#### Logging\n```typescript\n\u002F\u002F FAIL: WRONG: Logging sensitive data\nconsole.log('User login:', { email, password })\nconsole.log('Payment:', { cardNumber, cvv })\n\n\u002F\u002F PASS: CORRECT: Redact sensitive data\nconsole.log('User login:', { email, userId })\nconsole.log('Payment:', { last4: card.last4, userId })\n```\n\n#### Error Messages\n```typescript\n\u002F\u002F FAIL: WRONG: Exposing internal details\ncatch (error) {\n  return NextResponse.json(\n    { error: error.message, stack: error.stack },\n    { status: 500 }\n  )\n}\n\n\u002F\u002F PASS: CORRECT: Generic error messages\ncatch (error) {\n  console.error('Internal error:', error)\n  return NextResponse.json(\n    { error: 'An error occurred. Please try again.' },\n    { status: 500 }\n  )\n}\n```\n\n#### Verification Steps\n- [ ] No passwords, tokens, or secrets in logs\n- [ ] Error messages generic for users\n- [ ] Detailed errors only in server logs\n- [ ] No stack traces exposed to users\n\n### 9. Blockchain Security (Solana)\n\n#### Wallet Verification\n```typescript\nimport { verify } from '@solana\u002Fweb3.js'\n\nasync function verifyWalletOwnership(\n  publicKey: string,\n  signature: string,\n  message: string\n) {\n  try {\n    const isValid = verify(\n      Buffer.from(message),\n      Buffer.from(signature, 'base64'),\n      Buffer.from(publicKey, 'base64')\n    )\n    return isValid\n  } catch (error) {\n    return false\n  }\n}\n```\n\n#### Transaction Verification\n```typescript\nasync function verifyTransaction(transaction: Transaction) {\n  \u002F\u002F Verify recipient\n  if (transaction.to !== expectedRecipient) {\n    throw new Error('Invalid recipient')\n  }\n\n  \u002F\u002F Verify amount\n  if (transaction.amount > maxAmount) {\n    throw new Error('Amount exceeds limit')\n  }\n\n  \u002F\u002F Verify user has sufficient balance\n  const balance = await getBalance(transaction.from)\n  if (balance \u003C transaction.amount) {\n    throw new Error('Insufficient balance')\n  }\n\n  return true\n}\n```\n\n#### Verification Steps\n- [ ] Wallet signatures verified\n- [ ] Transaction details validated\n- [ ] Balance checks before transactions\n- [ ] No blind transaction signing\n\n### 10. Dependency Security\n\n#### Regular Updates\n```bash\n# Check for vulnerabilities\nnpm audit\n\n# Fix automatically fixable issues\nnpm audit fix\n\n# Update dependencies\nnpm update\n\n# Check for outdated packages\nnpm outdated\n```\n\n#### Lock Files\n```bash\n# ALWAYS commit lock files\ngit add package-lock.json\n\n# Use in CI\u002FCD for reproducible builds\nnpm ci  # Instead of npm install\n```\n\n#### Verification Steps\n- [ ] Dependencies up to date\n- [ ] No known vulnerabilities (npm audit clean)\n- [ ] Lock files committed\n- [ ] Dependabot enabled on GitHub\n- [ ] Regular security updates\n\n## Security Testing\n\n### Automated Security Tests\n```typescript\n\u002F\u002F Test authentication\ntest('requires authentication', async () => {\n  const response = await fetch('\u002Fapi\u002Fprotected')\n  expect(response.status).toBe(401)\n})\n\n\u002F\u002F Test authorization\ntest('requires admin role', async () => {\n  const response = await fetch('\u002Fapi\u002Fadmin', {\n    headers: { Authorization: `Bearer ${userToken}` }\n  })\n  expect(response.status).toBe(403)\n})\n\n\u002F\u002F Test input validation\ntest('rejects invalid input', async () => {\n  const response = await fetch('\u002Fapi\u002Fusers', {\n    method: 'POST',\n    body: JSON.stringify({ email: 'not-an-email' })\n  })\n  expect(response.status).toBe(400)\n})\n\n\u002F\u002F Test rate limiting\ntest('enforces rate limits', async () => {\n  const requests = Array(101).fill(null).map(() =>\n    fetch('\u002Fapi\u002Fendpoint')\n  )\n\n  const responses = await Promise.all(requests)\n  const tooManyRequests = responses.filter(r => r.status === 429)\n\n  expect(tooManyRequests.length).toBeGreaterThan(0)\n})\n```\n\n## Pre-Deployment Security Checklist\n\nBefore ANY production deployment:\n\n- [ ] **Secrets**: No hardcoded secrets, all in env vars\n- [ ] **Input Validation**: All user inputs validated\n- [ ] **SQL Injection**: All queries parameterized\n- [ ] **XSS**: User content sanitized\n- [ ] **CSRF**: Protection enabled\n- [ ] **Authentication**: Proper token handling\n- [ ] **Authorization**: Role checks in place\n- [ ] **Rate Limiting**: Enabled on all endpoints\n- [ ] **HTTPS**: Enforced in production\n- [ ] **Security Headers**: CSP, X-Frame-Options configured\n- [ ] **Error Handling**: No sensitive data in errors\n- [ ] **Logging**: No sensitive data logged\n- [ ] **Dependencies**: Up to date, no vulnerabilities\n- [ ] **Row Level Security**: Enabled in Supabase\n- [ ] **CORS**: Properly configured\n- [ ] **File Uploads**: Validated (size, type)\n- [ ] **Wallet Signatures**: Verified (if blockchain)\n\n## Resources\n\n- [OWASP Top 10](https:\u002F\u002Fowasp.org\u002Fwww-project-top-ten\u002F)\n- [Next.js Security](https:\u002F\u002Fnextjs.org\u002Fdocs\u002Fsecurity)\n- [Supabase Security](https:\u002F\u002Fsupabase.com\u002Fdocs\u002Fguides\u002Fauth)\n- [Web Security Academy](https:\u002F\u002Fportswigger.net\u002Fweb-security)\n\n---\n\n**Remember**: Security is not optional. One vulnerability can compromise the entire platform. When in doubt, err on the side of caution.\n",{"name":5,"description":7},"main","57e7aa6b6e03bce1a7d7862ba9c2ec312f7f19b5","src\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002F.agents\u002Fskills\u002Fsecurity-review",0,"https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee","https:\u002F\u002Fwithcyril.me\u002F","Hi, I’m Julian Cyril D, a Computer Science and Business Systems student at PSNACET.\r\nI’m passionate about full-stack development, UI\u002FUX design, and building sma","2026-11-04 23:28:50",{"source":8,"skillName":5,"commands":34,"prompt":44,"zipAvailable":45},[35,38,41],{"tool":36,"command":37},"npx","npx skills add Cyrilthetecchieee\u002Fcyril-code- --skill security-review",{"tool":39,"command":40},"bunx","bunx skills add Cyrilthetecchieee\u002Fcyril-code- --skill security-review",{"tool":42,"command":43},"pnpm","pnpm dlx skills add Cyrilthetecchieee\u002Fcyril-code- --skill security-review","安装技能，技能地址：https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002F.agents\u002Fskills\u002Fsecurity-review\u002FSKILL.md",true,[47],{"path":48,"resourceType":49,"resourceTypeDesc":50,"sizeBytes":51,"sourceHtmlUrl":52},"agents\u002Fopenai.yaml","REFERENCE","参考文档",274,"https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002F.agents\u002Fskills\u002Fsecurity-review\u002Fagents\u002Fopenai.yaml",[54,63,70,78,85,92],{"skillNo":55,"name":56,"nameZh":6,"description":57,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":58,"licenseFileUrl":59,"sourceHtmlUrl":60,"categories":61,"keywords":62,"publishedAt":19},"01M7AQV6CYX8RMC78420V9WZ62","webapp-testing","Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.","Apache-2.0","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Fwebapp-testing\u002FLICENSE.txt","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Fwebapp-testing\u002FSKILL.md",[],[],{"skillNo":64,"name":65,"nameZh":6,"description":66,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":67,"categories":68,"keywords":69,"publishedAt":19},"01M7AQV2895N3S1MEX6K76G6G2","youtube-downloader","Download YouTube videos with customizable quality and format options. Use this skill when the user asks to download, save, or grab YouTube videos. Supports various quality settings (best, 1080p, 720p, 480p, 360p), multiple formats (mp4, webm, mkv), and audio-only downloads as MP3.","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Fvideo-downloader\u002FSKILL.md",[],[],{"skillNo":71,"name":72,"nameZh":6,"description":73,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":58,"licenseFileUrl":74,"sourceHtmlUrl":75,"categories":76,"keywords":77,"publishedAt":19},"01M7AQTRNX62DNKVZ5GXEHRBKB","theme-factory","Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors\u002Ffonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Ftheme-factory\u002FLICENSE.txt","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Ftheme-factory\u002FSKILL.md",[],[],{"skillNo":79,"name":80,"nameZh":6,"description":81,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":82,"categories":83,"keywords":84,"publishedAt":19},"01M7AQTNNVHAAN9H6DA8T6ZVE0","template-skill","Replace with description of the skill and when Claude should use it.","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Ftemplate-skill\u002FSKILL.md",[],[],{"skillNo":86,"name":87,"nameZh":6,"description":88,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":89,"categories":90,"keywords":91,"publishedAt":19},"01M7AQTJ3MQ6AKX152MEX2MYCC","tailored-resume-generator","Analyzes job descriptions and generates tailored resumes that highlight relevant experience, skills, and achievements to maximize interview chances","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Ftailored-resume-generator\u002FSKILL.md",[],[],{"skillNo":93,"name":94,"nameZh":6,"description":95,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":58,"licenseFileUrl":96,"sourceHtmlUrl":97,"categories":98,"keywords":99,"publishedAt":19},"01M7AQTD7D5MYET2YWG7HG9WM3","slack-gif-creator","Toolkit for creating animated GIFs optimized for Slack, with validators for size constraints and composable animation primitives. This skill applies when users request animated GIFs or emoji animations for Slack from descriptions like \"make me a GIF for Slack of X doing Y\".","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Fslack-gif-creator\u002FLICENSE.txt","https:\u002F\u002Fgithub.com\u002FCyrilthetecchieee\u002Fcyril-code-\u002Fblob\u002Fmain\u002Fsrc\u002Fcyril_code\u002Fassets\u002F.skills_repo\u002Fslack-gif-creator\u002FSKILL.md",[],[]]