# Business Context

> Search decisions, rules and capabilities across your vaults in one scope, by words, without a model.

Business Context searches the notes of your vaults. Ask about a capability, a business rule or an architecture decision, and it returns the notes that answer, with the vault and the path of each.

## When to use it

- You want the reason behind a decision, or the rule, before you change something.
- You want to put the right notes in front of an agent. Add a result to [AI Context](/devhub/features/ai-context/index.md) with one click.

Agents search the same notes through the `knowledge_search` tool.

[Screenshot: The Business Context screen with a question in the search box, the scope set to one organization and a list of results with the vault, path and score of each note. The sample data shown is made up.]

## Search

1. Open **Business Context** in the sidebar.
2. If it says "No index yet", click **Build the index**. It reads every vault DevHub knows about.
3. Choose the organization and the project. The **Active scope** shows what is searched. "All organizations + All projects" cannot be searched, because Business Context never mixes organizations.
4. Type your question and click **Search**.
5. Each result shows its source (vault, path, score) and a label: **canonical**, **reviewed working**, **working** or **superseded**. Click **Add to context** to queue a note for an agent.

If there are no results, try other words or a wider scope.

## How it finds notes

Business Context works by text: it matches the words of your question against the words of the notes. It needs no model. The line under the search box shows the state of the index, such as "text" mode and the number of documents.

Settings > MCP Server has **Knowledge and RAG**. If you set an embedding model there, DevHub also compares meaning, and the mode reads "hybrid". When no model is available, search falls back to text.

> **Caution:** Which embedding models work, and how much the hybrid mode adds, is not described here yet. Text
> search is the mode these pages document.

## Related

- [Vaults](/devhub/features/vaults/index.md)
- [AI Context](/devhub/features/ai-context/index.md)
- [Knowledge and code](/devhub/concepts/knowledge-vs-code/index.md)