# Spaces

Spaces are collections of indexed knowledge you can query, share, and revisit. A local Space keeps its index on your device; cloud features are optional.


## Why it exists

A vault answers personal questions. A Space gives a defined body of knowledge a durable thinking surface with retrieval and citations.

## When to use it

Use a Space for a research collection, team handbook, project archive, or any group of notes that benefits from focused questions.

## Workflow

Choose source notes → index the Space → ask a question → inspect sources → improve the source notes when the answer exposes a gap.

## Example

```text
Summarize the decisions made in this project and cite each decision note.
```

> **OpenOnyx tip**
> Create a Space around a real question. “Everything I own” is usually less useful than a focused collection.

> **OpenOnyx common mistake**
> Indexing improves retrieval; it does not make weak source notes reliable. Keep important facts in the vault.

## Continue learning

- [Vault Intelligence](<Vault Intelligence.md>)
- [AI Graph](<AI Graph.md>)
- [Sync](<Sync.md>)