fix: update chat message API to match current Claude.ai format#137
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thanks for your contribution @sgasser 3 checks are failing so please see the linting error. |
jahwag
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Nov 26, 2025
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@sgasser This works well and I will approve it. First, please amend your commits to have a verified signature:
https://docs.github.com/en/enterprise-cloud@latest/authentication/managing-commit-signature-verification/about-commit-signature-verification
Thank you!
The Claude.ai chat completion API has changed its request/response format. This fix adds the minimal required fields to make it work. Changes: - Add required field to completion API request: - rendering_mode: "messages" (critical - without this the API times out) - Ensure attachments and files arrays are present (even if empty) - Update CLI event handler to process new SSE format: - Handle content_block_delta events with text_delta type - Extract text from delta.text field (was event.completion before) - Maintain backward compatibility with old format Root cause: API was timing out because the rendering_mode field was missing. The API would accept connections but never send response events without it. Tested: Successfully creates chats and sends/receives messages with proper streaming responses from Claude.
Extract event processing logic into process_message_event helper function to reduce complexity from 11 to 5, fixing flake8 C901 error.
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The Claude.ai chat completion API has changed its request/response format. This fix adds the minimal required fields to make it work.
Changes:
Add required field to completion API request:
Ensure attachments and files arrays are present (even if empty)
Update CLI event handler to process new SSE format:
Root cause: API was timing out because the rendering_mode field was missing. The API would accept connections but never send response events without it.
Tested: Successfully creates chats and sends/receives messages with proper streaming responses from Claude.