Type Alias DescriptionFactory

DescriptionFactory: z.infer<typeof DescriptionFunctionSchema>

Function type that dynamically generates a description for a tool call approval request.

Param: toolCall

The tool call being reviewed

Param: state

The current agent state

Param: runtime

The agent runtime context

Returns

A string description or Promise that resolves to a string description

Example

import { type DescriptionFactory, type ToolCall } from "langchain";

const descriptionFactory: DescriptionFactory = (toolCall, state, runtime) => {
  return `Please review: ${toolCall.name}(${JSON.stringify(toolCall.args)})`;
};