Node.js Fastify

Purpose

Build Fastify applications with schema-first validation, plugin encapsulation, request/response serialization, and lifecycle hooks.

Agent Protocol

Trigger

User request includes: fastify, fastify server, fastify plugin, fastify schema, fastify hooks, fastify validation, fastify serializer, TypeBox, @fastify/swagger.

Input Context

• Fastify version (4.x, 5.x)
• Validation approach (JSON Schema, TypeBox, Zod)
• Plugin set (swagger, cors, jwt, rate-limit)
• Database (TypeORM, Prisma, Knex)

Output Artifact

Server setup, plugin registration, schema definitions, hook pipeline, route patterns.