AI Research Atlas

Writing effective tools for agents with agents

Anthropic · 11 September 2025

Anthropic's engineers share how to write and evaluate agent tools, and how to have Claude itself optimize tool descriptions.

Argues agents are only as good as their tools and walks through building a prototype, running evaluations, and using Claude to analyze transcripts and improve tools for MCP servers with hundreds of tools.

Date
Thursday, 11 September 2025
Lab
Anthropic
Kind
paper
Access
paper only

Only the opening of the post was read.

Sources

  1. www.anthropic.com/engineering/writing-tools-for-agents

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