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JavaScript@langchain/coremessagesRemoveMessageFields
Interfaceā—Since v0.3

RemoveMessageFields

Copy
interface RemoveMessageFields

Bases

Omit<BaseMessageFields, "content">

Properties

property
contentBlocks: Standard[]
property
id: string

The ID of the message to remove.

property
name: string

An optional name for the message participant.

This property is primarily used to:

  1. Identify agent roles in multi-agent systems: When multiple agents collaborate, setting name helps distinguish which agent produced a message, preventing confusion about who said what.

  2. Pass participant names to model providers: Some providers (notably OpenAI, e.g. see OpenAI Chat Completions API) use this field to differentiate between participants with the same role. For example, when using OpenAI's Chat Completions API, the name is included in the message payload sent to the model.

Copy
// Setting name on an AIMessage to identify the agent
const message = new AIMessage({
  content: "I'll handle the calendar scheduling.",
  name: "calendar_agent"
});

// In a multi-agent system, this helps track message origins
const researcherMessage = new AIMessage({
  content: "Here are the findings...",
  name: "researcher"
});
const writerMessage = new AIMessage({
  content: "I've drafted the report.",
  name: "writer"
});
property
response_metadata: Partial<unknown>
deprecatedproperty
additional_kwargs: __type
View source on GitHub