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

# Persona

> Language, knowledge, behaviors, voice and the chat widget of an agent.

Open an agent and click **Persona** in its toolbar. Changes save automatically.

## General

| Setting | What it does |
| - | - |
| **Language** | The agent replies in this language, whichever language it's written to in: **English**, **Spanish** or **French**. |
| **Temperature** | How varied the answers are (0–2). Keep it low for support. |
| **Top K** | How many word choices the model considers (1–100). Leave the default unless you know you need it. |
| **Conversation idle timeout** | Minutes of inactivity before a conversation is completed (5–1440, default 30). |
| **Voice and calls** | Voice agents only. **Agent speaks first** sends a greeting when the call connects. |

## Knowledge base

Tick the folders and files this agent may answer from. Ticking a folder includes all its files. See [Drive](/jen-studio/drive).

## Behaviors

Rules your organization has written, such as *always confirm before cancelling*. Tick the ones this agent follows. Expand a behavior to read, edit or delete it.

## Voices

Voice agents only. Preview each voice with the play button and select the one your agent uses.

## Widget

Chat agents only. Sets how the chat looks and what it asks on your website. See [Add chat to your website](/grio-cx/web-chat#customize-the-chat).


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