The content of the message. Contains the raw text or param of the message, used in history storage or processing.
OptionalimagesOptional array of images associated with the message, represented as binary data or base64 strings. Likely used for messages involving visual content (e.g., user-uploaded images or tool-generated visuals). Supports Uint8Array for raw binary data or string for encoded formats (e.g., base64). Undefined if no images are included in the message.
The role of the message sender, either user, assistant, or system. Determines the context or source of the message in the outline history.
Optionaltool_Optional ID of the tool call associated with the message. Used to link the message to a specific tool execution request.
Optionaltool_The name of the agent associated with the message. Allow to attach tool call request to specific message
Interface representing a message in the outline system. Used to structure messages stored in the outline history, typically for user, assistant, or system interactions. IOutlineMessage