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Anthropic publishes Writing Effective Tools for Agents

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Writing Effective Tools for Agents published — choosing which tools to build, namespacing, returning meaningful context, token efficiency, and prompt-engineering tool descriptions

Why it matters

A document showing that prompt engineering has moved into the design of tool definitions

Source — Primary sources first; secondary reports are labelled “Press”

Officialanthropic.comhttps://www.anthropic.com/engineering/writing-tools-for-agents

Added in Week 35, 2026 · See that week

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