Claude on the Developer Platform now supports dynamic tool use, allowing agents to discover, learn, and execute tools on-demand instead of loading large tool libraries upfront.

Key features include the Tool Search Tool for efficient tool discovery, Programmatic Tool Calling to orchestrate tools via code while minimizing context pollution, and Tool Use Examples to standardize tool usage guidance. Internal testing shows these capabilities greatly reduce context window usage and improve accuracy when managing complex workflows and large inventories of external tools.