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- OpenClaw
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- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub Β· AI
Nestjs Best Practices
NestJS best practices and architecture patterns for building production-ready applications. This skill should be used when writing, reviewing, or refactoring...
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NestJS best practices and architecture patterns for building production-ready applications. This skill should be used when writing, reviewing, or refactoring...
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Documentation
NestJS Best Practices
Comprehensive best practices guide for NestJS applications. Contains 40 rules across 10 categories, prioritized by impact to guide automated refactoring and code generation.
When to Apply
Reference these guidelines when: Writing new NestJS modules, controllers, or services Implementing authentication and authorization Reviewing code for architecture and security issues Refactoring existing NestJS codebases Optimizing performance or database queries Building microservices architectures
Rule Categories by Priority
PriorityCategoryImpactPrefix1ArchitectureCRITICALarch-2Dependency InjectionCRITICALdi-3Error HandlingHIGHerror-4SecurityHIGHsecurity-5PerformanceHIGHperf-6TestingMEDIUM-HIGHtest-7Database & ORMMEDIUM-HIGHdb-8API DesignMEDIUMapi-9MicroservicesMEDIUMmicro-10DevOps & DeploymentLOW-MEDIUMdevops-
1. Architecture (CRITICAL)
arch-avoid-circular-deps - Avoid circular module dependencies arch-feature-modules - Organize by feature, not technical layer arch-module-sharing - Proper module exports/imports, avoid duplicate providers arch-single-responsibility - Focused services over "god services" arch-use-repository-pattern - Abstract database logic for testability arch-use-events - Event-driven architecture for decoupling
2. Dependency Injection (CRITICAL)
di-avoid-service-locator - Avoid service locator anti-pattern di-interface-segregation - Interface Segregation Principle (ISP) di-liskov-substitution - Liskov Substitution Principle (LSP) di-prefer-constructor-injection - Constructor over property injection di-scope-awareness - Understand singleton/request/transient scopes di-use-interfaces-tokens - Use injection tokens for interfaces
3. Error Handling (HIGH)
error-use-exception-filters - Centralized exception handling error-throw-http-exceptions - Use NestJS HTTP exceptions error-handle-async-errors - Handle async errors properly
4. Security (HIGH)
security-auth-jwt - Secure JWT authentication security-validate-all-input - Validate with class-validator security-use-guards - Authentication and authorization guards security-sanitize-output - Prevent XSS attacks security-rate-limiting - Implement rate limiting
5. Performance (HIGH)
perf-async-hooks - Proper async lifecycle hooks perf-use-caching - Implement caching strategies perf-optimize-database - Optimize database queries perf-lazy-loading - Lazy load modules for faster startup
6. Testing (MEDIUM-HIGH)
test-use-testing-module - Use NestJS testing utilities test-e2e-supertest - E2E testing with Supertest test-mock-external-services - Mock external dependencies
7. Database & ORM (MEDIUM-HIGH)
db-use-transactions - Transaction management db-avoid-n-plus-one - Avoid N+1 query problems db-use-migrations - Use migrations for schema changes
8. API Design (MEDIUM)
api-use-dto-serialization - DTO and response serialization api-use-interceptors - Cross-cutting concerns api-versioning - API versioning strategies api-use-pipes - Input transformation with pipes
9. Microservices (MEDIUM)
micro-use-patterns - Message and event patterns micro-use-health-checks - Health checks for orchestration micro-use-queues - Background job processing
10. DevOps & Deployment (LOW-MEDIUM)
devops-use-config-module - Environment configuration devops-use-logging - Structured logging devops-graceful-shutdown - Zero-downtime deployments
How to Use
Read individual rule files for detailed explanations and code examples: rules/arch-avoid-circular-deps.md rules/security-validate-all-input.md rules/_sections.md Each rule file contains: Brief explanation of why it matters Incorrect code example with explanation Correct code example with explanation Additional context and references
Full Compiled Document
For the complete guide with all rules expanded: AGENTS.md
Category context
Agent frameworks, memory systems, reasoning layers, and model-native orchestration.
Source: Tencent SkillHub
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Package contents
Included in package
1 Docs
- SKILL.md