> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/ai-evals/guides/overview.md).

# Multi-Turn & Agentic Evals

Evaluate multi-turn conversations and agentic systems, including HITL scripts and tool-use trajectories.

Agentic evals cover systems that reason across multiple turns, invoke tools, or require human-in-the-loop scripts to drive the conversation.

***

## What you will learn

* How to define a multi-turn eval with a HITL script.
* How trajectory scorers evaluate tool-use sequences.
* Patterns for evaluating Harness Agent V3 and similar systems.