Prompt Engineering | Anthropic Just Killed Tool Calling

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Prompt Engineering | Anthropic Just Killed Tool Calling

Anthropic's latest Sonnet 4.6 release quietly introduced programmatic tool calling; a feature that lets AI agents write code instead of JSON to invoke tools, slashing token usage by up to 98% while improving accuracy.

I break down why this "code mode" approach outperforms traditional tool calling, how companies like Cloudflare and Anthropic are already implementing it, and why this could become the new industry standard just like MCP did.

If you're building AI agents, this might be the most important under-the-radar upgrade of the year.

Prompt Engineering

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Prompt Engineering | Anthropic Just Killed Tool Calling

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