agent-tool-builder

从 schema 到错误处理，提供代理工具设计的最佳实践与规范。

帮你把 AI agent 要用的工具设计好，让 agent 能准确调用而不是胡编乱造或悄悄失败。用在你要定义工具接口、写参数 schema、验证输入和处理错误时，能避免浪费 tokens 和排查难题。特别强调 JSON Schema 的写法、对 LLM 有帮助的描述技巧，以及实用的校验与错误处理模式。

# Agent Tool Builder

Tools are how AI agents interact with the world. A well-designed tool is the
difference between an agent that works and one that hallucinates, fails
silently, or costs 10x more tokens than necessary.

This skill covers tool design from schema to error handling. JSON Schema
best practices, description writing that actually helps the LLM, validation,
and the emerging MCP standard that's becoming the lingua franca for AI tools.

Key insight: Tool descriptions are more important than tool implementations.
The LLM never sees your code - it only sees the schema and description.

## Principles

- Description quality > implementation quality for LLM accuracy
- Aim for fewer tha