Checked other resources

• This is a feature request, not a bug report or usage question.
• I added a clear and descriptive title that summarizes the feature request.
• I used the GitHub search to find a similar feature request and didn't find it.
• I checked the LangChain documentation and API reference to see if this feature already exists.
• This is not related to the langchain-community package.

Package (Required)

• langchain
• langchain-openai
• langchain-anthropic
• langchain-classic
• langchain-core
• langchain-cli
• langchain-model-profiles
• langchain-tests
• langchain-text-splitters
• langchain-chroma
• langchain-deepseek
• langchain-exa
• langchain-fireworks
• langchain-groq
• langchain-huggingface
• langchain-mistralai
• langchain-nomic
• langchain-ollama
• langchain-perplexity
• langchain-prompty
• langchain-qdrant
• langchain-xai
• Other / not sure / general

Feature Description

It would be very useful if there were a middleware capable of determining which tools to invoke and prompting the user to provide any missing information required by those tools.
It would be even better if recursive calls between multiagents were possible.

Use Case

I'm building a multi-agent system, but deeper agents tend to lack information when invoking tools. Therefore, I hope to add a middleware that can ask the user for missing information.

Proposed Solution

No response

Alternatives Considered

No response

Additional Context

No response