AgentSkillsCN

backend-design

设计健壮的后端系统和API。当用户要求规划或实施服务、数据模型或集成时使用。

SKILL.md
--- frontmatter
name: backend-design
description: Design robust backend systems and APIs. Use when users ask to plan or implement services, data models, or integrations.
allowed-tools:
  - Read
  - Grep
  - Glob
  - Bash

Backend Design Skill

This skill guides the design of reliable backend systems, APIs, and data models with clear trade-offs, strong correctness guarantees, and operational readiness.

Design Thinking

  • •Scope: Identify core use cases, data flows, and integration points.
  • •Constraints: Latency, throughput, availability, compliance, and deployment limits.
  • •Data: Define entities, relationships, invariants, and lifecycle.
  • •Reliability: Error handling, retries, idempotency, and consistency model.

Architecture Guidelines

  • •API Design: Explicit contracts, versioning, validation, and error shape.
  • •Storage: Choose stores based on access patterns and durability needs.
  • •Performance: Indexing, caching, batching, and async processing.
  • •Security: AuthN/AuthZ, least privilege, secrets handling, auditability.
  • •Observability: Logging, metrics, tracing, and alerting signals.
  • •Scalability: Stateless services where possible, clear scaling boundaries.

Output Requirements

Provide a clear backend plan or implementation that includes:

  • •Data model and key invariants
  • •API endpoints or service interfaces
  • •Failure modes and recovery strategy
  • •Performance and scaling considerations
  • •Security and observability notes

Response Checklist

markdown
Backend Design Checklist

- [ ] Confirm requirements and constraints
- [ ] Define data model and invariants
- [ ] Specify API contracts and error shape
- [ ] Address failure modes and consistency
- [ ] Cover performance, scaling, and caching
- [ ] Include security and observability plans