hono-dev

Develop type-safe Hono REST APIs with Zod OpenAPI and testClient.

28|1|Updated Aug 30, 2025
One-click install
npx skills add https://github.com/outfitter-dev/agents --skill hono-dev
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: hono-dev
Source: https://github.com/outfitter-dev/agents/tree/main/baselayer/skills/hono-dev
Command: npx skills add https://github.com/outfitter-dev/agents --skill hono-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill codifies type-safe API development with the Hono framework, including route chaining, factory patterns, Zod OpenAPI integration, error handling, RPC clients, and testing patterns.

Core Features & Use Cases

  • Route chaining: Preserve type inference across routes.
  • Factory pattern: Typed middleware and handlers.
  • Zod OpenAPI integration: Auto OpenAPI documentation with Zod schemas.
  • Error handling patterns: Centralized error management.

Quick Start

Use Hono patterns to build typed routes, OpenAPI docs, and test clients with Hono testing utilities.

Frequently Asked Questions about hono-dev

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build type-safe REST APIs with Hono?

Type-safe REST APIs with Hono use route chaining to preserve type inference across endpoints, factory patterns for typed middleware and handlers, and Zod validation schemas. This ensures request and response types are checked at compile time, catching errors before runtime.

Can I generate OpenAPI documentation automatically from Hono routes?

Yes. Zod OpenAPI integration with Hono automatically generates OpenAPI documentation from your Zod validation schemas. Define schemas once and documentation is produced without manual maintenance.

How do I create a type-safe RPC client for Hono endpoints?

Use hono/client to build a typed RPC client that mirrors your route definitions. The client inherits route types from your server, eliminating manual type duplication and catching mismatches at compile time.

What's the best way to handle errors consistently across Hono routes?

Centralized error handling with factory patterns enforces consistent error responses across all routes. Define error schemas once in a factory and reuse them, ensuring uniform error structure and type safety throughout your API.

How do I test Hono APIs with type safety?

Use testClient with Hono's testing utilities to write typed tests that verify routes and responses. testClient preserves route types, allowing compile-time validation of test assertions against actual endpoint signatures.

Do I need to maintain separate type definitions for my API client and server?

No. Type-safe RPC patterns eliminate duplication by deriving client types directly from server routes. A single source of truth ensures client and server types stay synchronized automatically.