Why is error message design important for agents?

Well-designed error messages allow agents to recover autonomously. Instead of generic errors, you should provide specific reasons and suggestions so the agent can fix its input and retry.

Does this skill support the Model Context Protocol (MCP)?

Yes, it provides specific guidance on using fully qualified names and best practices for implementing tools within the MCP ecosystem.

What is the Consolidation Principle in tool design?

The Consolidation Principle suggests that if a human cannot definitively choose between two tools, an agent cannot either. It involves merging overlapping tools into single, context-aware functions to reduce model confusion.

How should I structure my tool descriptions for AI agents?

Effective tool descriptions should answer four key questions: What does the tool do? When should it be used? What inputs does it accept? And what exactly does it return?

Agent Tool Design Expert

Name: Agent Tool Design Expert
Author: eyadsibai

byeyadsibai

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API 개발

Optimizes AI agent performance by implementing high-quality tool descriptions, function calling patterns, and Model Context Protocol (MCP) standards.

The Tool Design skill provides a comprehensive framework for creating efficient interfaces between AI agents and deterministic systems. It helps developers move beyond vague tool descriptions by enforcing the Consolidation Principle—reducing ambiguity for the model—and standardizing documentation around the 'What, When, Inputs, and Returns' framework. By focusing on architectural reduction and error-recovery design, this skill ensures that Claude can reliably use external functions, navigate MCP naming conventions, and provide variable-verbosity responses based on the task context. It is essential for developers building robust, production-grade agentic workflows that require precise tool interaction.

주요 기능

01Standardized tool description framework covering purpose, usage, inputs, and returns

02Architectural reduction strategies to improve reasoning by simplifying tool scaffolding

03Error message design patterns optimized for autonomous agent self-correction

040 GitHub stars

05Implementation of the Consolidation Principle to eliminate agent decision ambiguity

06Guidance on Model Context Protocol (MCP) fully qualified naming conventions

사용 사례

01Implementing standardized MCP tools for Claude Code and other agentic environments

02Designing robust function calling interfaces for custom AI agents and plugins

03Refactoring complex multi-tool architectures into streamlined, high-performance patterns

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add eyadsibai/ltk tool-design

For use in Claude.ai and ChatGPT

Download Skill