Input error: text content blocks must not be empty.

To fix the HTTP 400 Bad Request error with the message "messages: text content blocks must be non-empty" from the Anthropic API, you need to ensure that all message blocks in your request contain non-empty text content.

Here are the key steps to resolve this issue:

• Verify that each message block has a content field.

• Ensure the content field is not empty.

• Remove any empty or null text content blocks from the request.

• Double-check the request payload for any formatting errors that might lead to empty content blocks.