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

# How Do I Sync Only Certain Folders?

When adding a source, under **What to sync** choose **Select what to sync** instead of **Sync everything**, then check exactly what you want. For Slack the options are **Every channel the app is in** or **Only channels I pick**.

The checkboxes nest both ways:

* Checking a folder includes everything inside it, including content added later.
* You can uncheck a specific subfolder or file inside a checked folder to leave it out.
* You can also check a specific child inside an unchecked folder to bring just that item in.

**Sync everything** indexes the whole source, including content added later. **Select what to sync** indexes only what you check — new content appears only if it lands inside something you checked.

## Changing the selection later

Open the source, go to its files, and use **Edit** to adjust the selection, then **Save**. Changes apply on the next sync: newly included content is indexed, and newly excluded content is removed from search. If a sync cannot finish applying a scope change, everything stays searchable and the rest is applied on the following sync.

## FAQ

<AccordionGroup>
  <Accordion title="I excluded a folder but its files still show in search">
    Scope changes apply on the next sync. Run **Re-sync** from the source's menu to apply them now.
  </Accordion>

  <Accordion title="Does narrowing the selection save credits?">
    Yes. Excluded content is never downloaded or indexed, so it costs nothing. Narrowing a source before approving its estimate lowers the estimate too.
  </Accordion>

  <Accordion title="I re-included a folder I had excluded">
    Its content is indexed again on the next sync.
  </Accordion>

  <Accordion title="Can I scope what a single agent sees without changing the source?">
    Yes. An attached knowledge source can be narrowed per agent — see [How do agents use Brain?](/help/brain/how-do-agents-use-brain)
  </Accordion>
</AccordionGroup>

## Related

<CardGroup cols={2}>
  <Card title="What does Pending approval mean?" icon="coins" href="/help/brain/what-does-pending-approval-mean">
    Estimates and credits
  </Card>

  <Card title="Why is a document missing?" icon="file-magnifying-glass" href="/help/brain/why-is-a-document-missing">
    Permission-based reasons
  </Card>
</CardGroup>