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

# Data sources

> Documents, URLs, and how retrieval grounds answers

Open **Sources > Documents** in the sidebar. The page has four tabs: **Website**, **Files**, **Text**, and **Navigation**.

<Frame caption="The Documents page under Sources, on the Website tab.">
  <img src="https://mintcdn.com/chatropic/_18Jl2ZJrxyA8Ge2/images/Screenshot-2026-07-02-at-7.26.59-PM.png?fit=max&auto=format&n=_18Jl2ZJrxyA8Ge2&q=85&s=bc70b15b411f96425dec38c1f5d06245" alt="Documents sources page" lightAlt="Documents sources page" darkAlt="Documents sources page" className="dark:hidden" width="3840" height="1830" data-path="images/Screenshot-2026-07-02-at-7.26.59-PM.png" />

  <img src="https://mintcdn.com/chatropic/_18Jl2ZJrxyA8Ge2/images/Screenshot-2026-07-02-at-7.26.59-PM-1.png?fit=max&auto=format&n=_18Jl2ZJrxyA8Ge2&q=85&s=7bca9702ad93671347aeddd433c98d45" alt="Documents sources page" lightAlt="Documents sources page" darkAlt="Documents sources page" className="hidden dark:block" width="3840" height="1830" data-path="images/Screenshot-2026-07-02-at-7.26.59-PM-1.png" />
</Frame>

## Source types

| Tab            | Use case                                          | Maturity   |
| -------------- | ------------------------------------------------- | ---------- |
| **Website**    | Crawl a domain or fetch a single URL              | **Stable** |
| **Files**      | Upload PDFs, markdown, text                       | **Stable** |
| **Text**       | Paste FAQs or policies inline                     | **Stable** |
| **Navigation** | Register in-app deeplink routes for the web embed | **Stable** |

Related under **Sources**:

| Page                           | Purpose                                                                                         |
| ------------------------------ | ----------------------------------------------------------------------------------------------- |
| **Inventory**                  | Product/catalog sync (when configured)                                                          |
| **Navigation** (Documents tab) | Deeplink routes; see [Navigation routes](/developer-guides/navigation-routes/navigation-routes) |

<Steps>
  <Step title="Add a source">
    On **Documents**, pick the **Website**, **Files**, or **Text** tab, add your content, and save.
  </Step>

  <Step title="Wait for indexing">
    The summary bar shows file, text, and website counts. Re-add or re-crawl when content changes.
  </Step>

  <Step title="Test retrieval">
    Open **Playground**, start a **New test session**, and ask questions that only appear in your docs.
  </Step>
</Steps>

## How retrieval works

```mermaid theme={null}
flowchart TD
    S[Sources] --> I[Index chunks + embeddings]
    Q[User question] --> R[Retrieve top-K chunks]
    I --> R
    R --> C[Compose answer with context]
```

The agent retrieves relevant passages **per turn**. For Customer Support, Playground instructions are generated from these sources.

For in-app destinations ("take me to billing"), add routes on the **Navigation** tab in **Documents**, or see [Navigation routes](/developer-guides/navigation-routes/navigation-routes).

<CardGroup cols={2}>
  <Card title="Navigation routes" icon="route" href="/developer-guides/navigation-routes/navigation-routes">
    Deeplink customers to pages on your site.
  </Card>

  <Card title="Skills" icon="wand-magic-sparkles" href="/user-guides/agent-management/skills">
    Teach the agent complete features step by step.
  </Card>

  <Card title="Actions overview" icon="bolt" href="/user-guides/actions/overview">
    Live API data beyond static docs.
  </Card>
</CardGroup>