mcp-use TypeScript API
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    Interface LlmToolCallArgsDeltaEvent

    Incremental JSON arguments for a model-requested tool call.

    interface LlmToolCallArgsDeltaEvent {
        argsDelta: string;
        index: number;
        toolCallId: string;
        toolName: string;
        type: "tool-call-args-delta";
    }
    Index
    argsDelta index toolCallId toolName type
    argsDelta: string

    Partial JSON fragment. Concatenate all fragments before parsing.

    index: number

    Stable per-turn index for tracking parallel calls.

    toolCallId: string

    Provider-generated tool call identifier.

    toolName: string

    Tool name exposed to the model.

    type: "tool-call-args-delta"

    Event discriminator.

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