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Biyan Desktop
Assistants

Assistants

Assistants are reusable instruction profiles for Biyan conversations. An Assistant can define a name, description, system instructions, and allowed tools; the active remote model is selected separately in the chat.

Create an Assistant

  1. Open the Assistant selector.
  2. Choose Create Assistant.
  3. Add a clear name and instructions.
  4. Enable only the MCP tools needed for its task.
  5. Save and select it in a chat or Project.

The canonical built-in Assistant ID is biyan. During migration, untouched legacy built-in IDs are normalized to biyan. A user-customized legacy Assistant is preserved under a deterministic new ID, and conversation references are updated with it.

Assistant instructions and relevant tool results are included in requests to the selected cloud provider. Never store provider API keys in Assistant instructions.