claude-code - 💡(How to fix) Fix [BUG] API Error: 400 messages: text content blocks must be non-empty [1 comments, 2 participants]

API Error: 400 messages: text content blocks must be non-empty

TL;DR

Check and ensure that all text content blocks in the request have non-empty text to resolve the API Error 400.

Guidance

• Review the request payload to identify any empty text blocks and remove or populate them with relevant text.
• Verify that the cache_control setting is not being applied to empty text blocks, as this is explicitly disallowed.
• Test the request with a minimal payload containing only non-empty text blocks to isolate the issue.
• If the issue persists, try resetting the request payload to its default state or seeking assistance from the API support team.

Example

No code snippet is provided as the issue is related to the request payload and API interaction, which is not explicitly shown in the issue body.

Notes

The issue seems to be related to a regression in the Claude Code version v2.0.73+, and the exact cause may require further investigation or support from the API team.

Recommendation

Apply workaround: Ensure all text content blocks have non-empty text, as this is the most direct way to address the API Error 400 messages provided.