langchain-tools

What problem does it solve?

Tools extend what agents can do—letting them fetch real-time data, execute code, query databases, and take actions in the world. Tools are callable functions with well-defined inputs and outputs that models can invoke based on context.

Core Features & Use Cases

• Tools have a name, description, and schema (input parameters)
• Models decide when to call tools and what arguments to provide
• Tools can be functions or coroutines (async)
• Some providers offer built-in server-side tools (web search, code interpreter)

Quick Start

Create a sample tool, bind it to a model, and invoke it to see a tool call.