Skip to content
cccskills
FreePublished on GitHub

nestjs-security

Implement JWT authentication, RBAC guards, Helmet hardening, and Argon2 hashing in NestJS. Use when adding auth strategies, role-based access control, CSRF protection, or security headers.

The English summary is being prepared. Showing the original description.

Works withRedis

Run score Not tested

See how to install

Files included (3)

  • SKILL.md3.1 KB
  • evals/evals.json2.2 KB
  • references/implementation.md3.8 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

NestJS Security Standards

Priority: P0 (CRITICAL)

Workflow: Secure NestJS Application

  1. Add Helmet — app.use(helmet()) in main.ts for HSTS, CSP headers.
  2. Configure JWT strategy — Use passport-jwt with RS256; validate iss and aud claims.
  3. Bind global AuthGuard — Register as APP_GUARD; use @Public() for open routes.
  4. Add throttling — Enable @nestjs/throttler with Redis store for rate limiting.
  5. Hash with Argon2id — Replace bcrypt with argon2.hash(password, { type: argon2.argon2id }).
  6. Verify — Run npm audit --prod and test that unauthenticated requests return 401.

Global Auth Guard Example

See implementation examples

Argon2id Hashing Example

See implementation examples

Authentication (JWT)

  • Strategy: Use @nestjs/passport with passport-jwt.
  • Algorithm: Enforce RS256 (preferred) or HS256. Reject none.
  • Claims: Validate iss and aud.
  • Tokens: Short access (15m), Long httponly refresh (7d).
  • MFA: Require 2FA for admin panels.

Authorization (RBAC)

  • Deny by default: Bind AuthGuard globally (APP_GUARD).
  • Bypass: Create @Public() decorator for open routes.
  • Roles: Use Reflector.getAllAndOverride for Method/Class merge.

Cryptography

Hardening

  • Helmet: Mandatory. Enable HSTS, CSP.
  • CORS: Explicit origins only. No *.
  • Throttling: Use Redis-backed @nestjs/throttler in production.
  • CSRF: Required for cookie-based auth. See implementation.

Data Protection

  • Sanitization: Use ClassSerializerInterceptor + @Exclude().
  • Validation: ValidationPipe({ whitelist: true }) to prevent mass assignment.
  • Audit: Log mutations (Who, What, When). See implementation.

Secrets Management

  • CI/CD: Run npm audit --prod in pipelines.
  • Runtime: Inject via vault (AWS Secrets Manager / HashiCorp Vault), not .env.

Anti-Patterns

  • No Shadow APIs: Audit routes regularly; disable /docs in production.
  • No SSRF: Allowlist domains for all outgoing HTTP requests.
  • No SQLi: Use ORM; avoid raw query() with string concatenation.
  • No XSS: Sanitize HTML input with dompurify.

References

Reviews

No reviews yet. Tell others what you thought.

Comments

No login needed. Share how it worked for you, ask a question, or note where it did not run.

No comments yet. Be the first to write one.

Comments are published right away. Do not include personal information such as email addresses or phone numbers. Up to 2 URLs.

0 / 1,000 characters

This form is protected by reCAPTCHA, and the Google Privacy Policy and Terms of Service apply.

More skills from this repository

Upgrade an Android project to Android Gradle Plugin (AGP) 9. Use when migrating to AGP 9, updating Gradle build files, migrating to built-in Kotlin, or adopting the new AGP DSL.

The English summary is being prepared. Showing the original description.

HoangNguyen0403/agent-skills-standard581Updated Oct 24, 2026

Apply Clean Architecture layering, modularization, and Unidirectional Data Flow in Android projects. Use when setting up project structure, placing code in layers, configuring feature/core modules, or implementing UDF patterns; defer Compose state and ViewModel/StateFlow implementation to their specific skills.

The English summary is being prepared. Showing the original description.

HoangNguyen0403/agent-skills-standard581Updated Oct 24, 2026

Implement WorkManager and background processing correctly on Android. Use when creating Worker classes, scheduling tasks, choosing between WorkManager and Foreground Services, or setting up Hilt in workers; defer FCM and notification delivery to android-notifications.

The English summary is being prepared. Showing the original description.

HoangNguyen0403/agent-skills-standard581Updated Oct 24, 2026

Build high-performance declarative UI with Jetpack Compose. Use when writing Composable functions, optimizing recomposition, hoisting state, or working with LazyColumn and side effects; defer deep-link and navigation routing to android-navigation.

The English summary is being prepared. Showing the original description.

HoangNguyen0403/agent-skills-standard581Updated Oct 24, 2026

Migrate an Android XML View to Jetpack Compose following a structured 10-step workflow. Use when converting XML layouts to Compose, setting up Compose in an existing View-based project, or incrementally adopting Compose.

The English summary is being prepared. Showing the original description.

HoangNguyen0403/agent-skills-standard581Updated Oct 24, 2026

Write correct coroutine scopes, lifecycle collection, and dispatcher injection in Android production code. Use for suspend functions, coroutine scopes, and dispatcher mechanics; defer ViewModel StateFlow/LiveData architecture, Fragment lifecycle recipes, persistence/notifications, and unit-test recipes to their specific skills.

The English summary is being prepared. Showing the original description.

HoangNguyen0403/agent-skills-standard581Updated Oct 24, 2026

See all skills by HoangNguyen0403

Report a problem with this skill