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Agent Tool Design

Skill

Write tool descriptions, schemas and error messages that agents can actually use well

by Muratcan KoylanCoding & Dev ToolsAgents & Automation Listed Dec 21, 2025

Clone or download it from github.com, then drop the folder into ~/.claude/skills/ (Claude Code) or your agent's skills directory.

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About Agent Tool Design

Focused on the tool layer of an agent system. Your agent gets guidance on writing tool descriptions it can pick the right tool from, designing input schemas and response formats, naming things, and writing error messages that say how to recover.

It also covers MCP server design, merging overlapping tools, and when to add or remove one. If you're building your own MCP server or agent tools, this helps your model stop picking the wrong one.

Part of the Agent Skills for Context Engineering pack by Muratcan Koylan.

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