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

# How to Restrict Chat to Specific Workspaces, Documents, or Tags

> Learn how to limit your chat interactions to specific workspaces, documents, or tags, ensuring the model only works with content relevant to your selected scope.

## Using Scope to Focus Your Chat

From the chat interface, you can define the scope of your interaction in three ways:

* **Workspace scope**: select one or more workspaces (folders) to restrict the model to all documents within them. Best when you want to explore or analyze all content in a specific domain.
* **Document scope**: attach specific files to focus on precise documents. Best when you need pinpoint accuracy.
* **Tag scope**: filter by one or more tags to restrict the model to documents matching those tags, across all your accessible workspaces. Best when you want to target a topic or category that spans multiple workspaces. *\<!-- NEW -->*

**Recommendation**: Choose your scope strategy at the start of your session — workspace-based for broad exploration, document-based for precision, or tag-based for topic-driven filtering.

## How to Set the Scope in Chat

1. Open the Chat interface.
2. Locate the Scope / Context settings.
3. Choose your scoping method:
   * Select one or more **workspaces**, or
   * Attach specific **documents**, or
   * Select one or more **tags** to filter by topic. *\<!-- NEW -->*
4. Start your query: the model will only work with content matching your selected scope.

You can combine **workspaces and tags** together to further narrow your scope (e.g., select a workspace *and* a tag to only target tagged documents within that workspace). *\<!-- NEW -->*

## Limitations

You can scope your chat using one of the following combinations:

* ✅ Workspaces only
* ✅ Tags only
* ✅ Workspaces + Tags
* ✅ Documents only
* ❌ Documents + Workspaces
* ❌ Documents + Tags
* ❌ Documents + Workspaces + Tags

In short: attaching specific documents is an exclusive mode — it cannot be combined with workspace or tag filters.