fix: sanitize Anthropic messages - strip trailing whitespace and filter empty content#4620
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Anandesh-Sharma wants to merge 1 commit intocrewAIInc:mainfrom
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Anthropic's API rejects messages where the final assistant content ends with trailing whitespace, and requires all messages to have non-empty content. This fix: 1. Strips trailing whitespace from the final assistant message content (both string and list/block formats) 2. Filters out user messages with empty string content Fixes crewAIInc#4413 Fixes crewAIInc#4427 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
_format_messages_for_anthropic()to prevent Anthropic's400 BadRequestErrorFixes #4413
Fixes #4427
Test plan
"Say: "are sanitized{"role": "user", "content": ""}are filtered out🤖 Generated with Claude Code