ReAct agent external tools

Reason and act (ReAct) [13] prompting is a paradigm for enabling LLMs to solve complex tasks using natural language reasoning combined with external tools.
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Tools enable Claude to interact with external services and APIs by specifying their exact structure and definition in our API
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It is therefore crucial to design toolsets and their documentation clearly and thoughtfully
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Tools extend your agent’s capabilities by using APIs from underlying applications or systems.
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When implementing agents, we try to follow three core principles: • Carefully craft your agent-computer interface (ACI) through thorough tool documentation and testing.
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[1] anthropic.com