> ## Documentation Index
> Fetch the complete documentation index at: https://www.getmaxim.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Tool Selection

> Evaluates whether an agent selected and used appropriate tools for each step in a task, including parameter configuration.

## Input

* **Required Inputs:**
  * **`session`**: Complete interaction log showing tool usage

## Output

* **`Result`**: Value in the continuous range \[0, 1]
* **`Reasoning`**: Detailed explanation of tool selection assessment

$$
\mathrm{ToolSelection} = \frac{\text{Sum of Individual Tool Scores}}{\text{Total Number of Tool Calls}}
$$

<Note>
  Where each tool call is scored as:- **1**: Tool was correctly selected and **0**: Tool selection was incorrectly selected
</Note>

## Interpretation

* **Higher score (closer to 1)**: More tool calls were correctly selected and used
* **Lower score (closer to 0)**: More tool calls were incorrectly selected or used