AgentSkillsCN

express-json-endpoint

在添加或修改Express JSON端点时使用此技能。保持路由简洁，验证输入，并返回一致的状态码与JSON数据。

SKILL.md
--- frontmatter
name: express-json-endpoint
description: Use this skill when adding or modifying Express JSON endpoints. Keep routing minimal, validate input, and return consistent status codes and JSON.

When implementing an Express JSON endpoint:

  • •Keep endpoints minimal (prefer a single route over multiple routes when feasible).
  • •Always add app.use(express.json()) before JSON routes.
  • •Validate required inputs early and return 400 with { error: string }.
  • •Separate concerns lightly:
    • •validate inputs
    • •run core logic
    • •return JSON
  • •Status codes:
    • •200 for success
    • •400 for invalid input
    • •500 for unexpected failures
  • •Error payload shape:
    • •{ error: "Human-readable message" }
  • •Do not leak sensitive details to the client; log details server-side.

Output expectations:

  • •Provide the minimal code changes needed.
  • •Avoid introducing frameworks, databases, or extra layers unless asked.