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

# Create an agent

> How to create a new agent and what each setting does

## Steps

<Steps>
  <Step title="Open the Agents page">
    Select "Agents" in the sidebar and click "**New agent**."
  </Step>

  <Step title="Enter the basics">
    * **Name** (required) — e.g., Sales Analyst
    * **Description** — a one-liner describing this agent's role
    * **Model** — the Claude model used for new chats with this agent
    * **System prompt** (optional) — behavior, tone, and constraints. If left blank, the default system prompt is used

    <Tip>
      Enter a name and press "**Auto-generate**" to have the AI draft a description and system prompt from what you have entered so far.
    </Tip>
  </Step>

  <Step title="Create">
    Press "Create" to create the agent and go to its detail page. Next, attach skills, connectors, and knowledge ([Attach resources](/en/pages/jinba_app_neo/agents/attach)).
  </Step>
</Steps>

## Creating from chat

You can also create an agent without leaving chat. In a chat with no agent selected, just ask — "Create an agent for sales analysis" — and the AI drafts the setup and shows an "**Agent creation proposed**" card.

* Review the name, description, model, and system prompt on the card
* Press "**Create**" to create the agent, or "Dismiss" to pass — nothing is created until you approve
* Use the "**Open**" link on the card to jump to the new agent's detail page and continue setup

## Notes on choosing a model

<Warning>
  Model changes apply to **new chats only**. Existing chats keep running on the model they were created with. To keep the response style consistent, we recommend sticking with the model chosen at creation time.
</Warning>

| Model             | Best for                                       |
| ----------------- | ---------------------------------------------- |
| Claude Opus 4.8   | Complex reasoning and multi-step agentic tasks |
| Claude Sonnet 4.6 | Most business tasks (default)                  |
| Claude Haiku 4.5  | Quick lookups and summaries                    |

## Writing a system prompt

Put in the system prompt anything you always want the agent to follow.

* **Role**: "You are an analyst responsible for sales data analysis"
* **Tone and language**: "Always respond in polite, formal Japanese"
* **Constraints**: "Always cite a source for every number"
* **Procedures**: routine workflows

<Tip>
  For concrete procedures you want to reuse, register them as a [skill](/en/pages/jinba_app_neo/skills/overview) rather than writing them into the system prompt. Skills can be shared across agents and can receive update suggestions from chat.
</Tip>

## Setting an avatar

From the Settings tab on the agent detail page, you can upload an avatar image (PNG / JPEG / GIF / WebP, up to 2 MB). It helps you identify the agent in lists and chat screens.

## Built-in document creation skills

Every agent supports creating PowerPoint (.pptx), Word (.docx), Excel (.xlsx), and PDF documents out of the box. No extra setup is required.