Ask user middleware for interactive question-answering during agent execution.
A single choice option for a multiple choice question.
A question to ask the user.
Request payload sent via interrupt when asking the user questions.
Widget result when the user submits answers.
Widget result when the user cancels the prompt.
Middleware that provides an ask_user tool for interactive questioning.
This middleware adds an ask_user tool that allows agents to ask the user
questions during execution. Questions can be free-form text or multiple choice.
The tool uses LangGraph interrupts to pause execution and wait for user input.
