Why Isn't n8n's AI Agent Forwarding JSON Data to the HTTP Request Node?

Initial Content:

Problem Description:
I am using the AI Agent in n8n to collect user input and pass it to the HTTP Request node. However, when mapping the output from the AI Agent to {{$fromAI('json')}}, the HTTP Request node fails with errors.

• Sometimes the request receives an empty body (query: {}) instead of the expected JSON.
• Manually inputting data works fine.
• Authorization (Bearer Token) is properly set in the headers.
• I also tried using {{$json}} instead of {{$fromAI('json')}}, but the issue persists.

Describe the problem/error/question
What steps should I take to ensure the JSON data from the AI Agent is correctly passed to the HTTP Request node?

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