> ## 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.

# Step Utility

> Evaluates the usefulness and contribution of each step in an agent's session towards achieving the overall task goal.

<Info>
  The Step Utility evaluator uses three attributes to define the score:

  * **Relevance**: The relevance of the step to the overall task.
  * **Effectiveness**: The effectiveness and contribution of the step to advance the overall objective.
  * **Alignment**: The alignment of the step to match the context of the task.
</Info>

## Input

* **Required Inputs:**
  * **`session`**: Complete interaction log showing all steps

## Output

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

$$
\mathrm{StepUtility} = \frac{\text{Number of Useful Steps}}{\text{Total Number of Steps}}
$$

## Interpretation

* **Higher scores (closer to 1)**: More steps in the session contribute effectively to achieving the task goal
* **Lower scores (closer to 0)**: Fewer steps contribute to task achievement, with many steps being unhelpful