In this video, I'll be telling you about Anthropic's new Programmatic Tool Calling capability, or PTC, and how it's changing the way agents handle multi-step tasks while using fewer tokens and delivering better results.

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Key Takeaways:

🧠 Anthropic introduced Programmatic Tool Calling (PTC), a new capability available in Claude Opus and Sonnet 4.6.
⚡ PTC lets Claude write code that orchestrates multiple tool calls inside a container, reducing round-trip overhead.
📉 PTC improved accuracy by 11% on average while using 24% fewer input tokens across benchmarks.
🏆 Opus 4.6 with PTC is currently ranked number one on LMArena's Search Arena benchmark.
🔧 PTC is now built into the web search tool on the API by default, so you get the benefits automatically.
🔄 You still keep full control through tool handlers for logging, inspection, and human approval.
👍 Overall, PTC gives you the best of both worlds: the composability of code and the control surface of tools.

AICodeKing

Anthropic introduced Programmatic Tool Calling (PTC), a new capability in Claude Opus and Sonnet 4.6 that addresses a core inefficiency in agentic tool use. Traditional tool calling forces every intermediate result back into Claude's context window, creating latency and token bloat. PTC lets Claude write code that orchestrates multiple tool calls inside a sandboxed container, keeping intermediate results out of context and only returning the final processed output. This preserves the control surface of tool handlers (for logging, inspection, approval) while gaining the composability of code. Benchmarks show PTC improved accuracy by 11% and reduced input tokens by 24% on search tasks, helping Opus 4.6 reach #1 on LM Arena's search benchmark. PTC is now enabled by default when using the web search tool via the API.

Claude Code Computer: Anthropic just launched Computer PTC Feature & IT'S INSANE!