Tool Input Examples Beta (tool-examples-2025-10-29)

What: New beta feature enabling tool definitions to include example inputs.

How to use: This feature is automatically enabled for first-party deployments when the tool_use_examples feature flag is active. Tool definitions can now include an input_examples field that gets passed to the Anthropic API.

Details:

• Beta flag: tool-examples-2025-10-29
• Only active when tool_use_examples feature flag is enabled
• Restricted to first-party deployments
• Helps Claude better understand tool usage through few-shot style examples
• Evidence: dBQ constant at line 216168, feature check in FP1() at line 216221-216222, implementation in _aA() at line 320476-320477