hashbrown

AssistantMessage

API

interface AssistantMessage<Output, ToolUnion extends AnyTool>  {
content?: Output;
encryptedValue?: string;
metadata?: Metadata;
reasoning?: string;
readonly reasoningDetails?: readonly Readonly<ReasoningMessage>[];
role: "assistant";
toolCalls:  ToolCall  < ToolUnion > [];
}
AssistantMessage
@typeOutput
@typeToolUnion
AnyTool
content
Output
encryptedValue
string

Opaque provider continuation data preserved across AG-UI runs. Hashbrown does not inspect or display this value.

metadata
Metadata

Provider metadata preserved across AG-UI runs.

reasoning
string

Human-readable reasoning. When reasoningDetails is present, this value is derived from the ordered records' nonempty content.

reasoningDetails
readonly Readonly<ReasoningMessage>[]

Ordered AG-UI reasoning records, including opaque continuation data such as encrypted values, subagent run IDs, and metadata. When present, these records take precedence over reasoning.

role
'assistant'
toolCalls
ToolCall<ToolUnion>[]