# Tool Base Classes

Core base classes and data structures for the tools framework.

## Tool

The base class for all tools that provides a common interface for both synchronous and asynchronous tool execution.

::: rllm.tools.tool_base.Tool

## ToolCall

Data structure representing a tool call with name and arguments.

::: rllm.tools.tool_base.ToolCall

## ToolOutput

Data structure representing the output of a tool execution, including results, errors, and metadata.

::: rllm.tools.tool_base.ToolOutput