[Bug] Anthropic API Error: Cannot modify thinking blocks in assistant message

Resolved 💬 4 comments Opened May 28, 2026 by mikejurka Closed Jul 4, 2026

Bug Description
getting a API Error: 400 messages.1.content.6: thinking or redacted_thinking blocks in the latest assistant message cannot be modified. These blocks must remain as they were in the original response.

Environment Info

  • Platform: darwin
  • Terminal: kitty
  • Version: 2.1.156
  • Feedback ID: 6ec58b54-47a3-4b09-a6c2-2df80425582b

Errors

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