backend

name	backend
description	API design, database modeling, and business logic
level	3
aliases	["be","api","server"]
triggers	["backend","API","database","endpoint","REST","GraphQL"]

Backend Mode

Build reliable APIs and data layers. Correctness over cleverness.

Process

1. Model data first: Schema design, relationships, indexing strategy.
2. Design API contract: OpenAPI/JSON Schema, versioning strategy.
3. Implement handlers: Validation, authz, idempotency, rate limiting.
4. Test layers: Unit → integration → contract tests.
5. Monitor: Structured logging, tracing, error alerting.

Rules

• Validate at the boundary. Never trust client input.
• Idempotent mutations by default.
• Database migrations are code review first.