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Scope is the set of knowledge Chief draws on to answer you. The Using: toolbar in the prompt bar shows what is in scope right now and lets you add or remove Files, Labels, Collections, and Concepts for the chat.

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Open the Using: toolbar

Chief: scope — the Using toolbar chip showing files in scope
  1. In the prompt bar, find the Using: toolbar beside the + button. Collapsed, it shows a compact summary (for example “12 files, 2 labels”).
  2. Click the chevron at the left of the toolbar. The toolbar expands to show chips for Expert Voice:, Intelligence:, Using: (your files and knowledge), and Public Data.

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Add Files, Labels, Collections, or Concepts

Chief: scope — the Add to chat picker with Files Labels Concepts tabs
  1. Click the + button at the left of the action bar. The command menu opens.
  2. Choose Add from Library. A picker opens with tabs for library items, Labels, Collections, and Concepts.
  3. Select the items you want. Each selection is added to the chat’s scope and appears in the Using: chip.
  4. Type your prompt and send. Chief answers using exactly what is in scope.
💡 Good to know: Add Labels — several at once — or Collections instead of picking files one by one. A Label or Collection brings in every file it covers, and stays current as files move in and out of it.

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Use your whole Library, or none of it

When the Using: chip shows the Library icon, Chief is drawing on every file in the Project. When it reads None of my files, Chief answers from the prompt and any Public Data only.

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Clear the scope

  1. Expand the Using: toolbar.
  2. Click the × on the Using: chip. This removes all scoped files and knowledge and resets the chip to None of my files.

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FAQ

Scope set through the Using: toolbar is standing context for the chat. An @-mention pulls a specific item into a single prompt inline. Both feed the same answer — mentions merge into scope when you send.
Check that the files finished processing — a spinner on the Using: chip means work is still pending. Also confirm the files you expected are actually listed in the expanded toolbar and not removed — see Chief can’t see / isn’t using my document if it persists.
Spreadsheets are counted separately and shown as their own count. The file count covers your other documents; the spreadsheet count is listed beside it.