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Fix: strip tool_search messages from summarization to prevent tool_reference errors#4999
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bhavyaus merged 1 commit intoApr 6, 2026
Conversation
…ference errors The summarization call uses ChatLocation.Other but createMessagesRequestBody still converts custom tool_search results to tool_reference blocks because customToolSearchEnabled isn't gated by isAllowedConversationAgent. Without tool search enabled in the summarization request, Anthropic rejects tool_reference content blocks. Strip tool_search tool_use/tool_result pairs from messages before sending the summarization request.
eleanorjboyd
approved these changes
Apr 6, 2026
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Cherry-pick of #4993 into release/0.43.
Problem
Full mode summarization fails on Anthropic models with:
Input tag 'tool_reference' found using 'type' does not match any of the expected tags: 'document', 'image', 'search_result'Fix
Strip custom
tool_searchtool_use/tool_result pairs from the summarization messages before they reachmakeChatRequest2→createMessagesRequestBody. This preventstryParseToolReferencesfrom converting the JSON text content totool_referenceblocks that Anthropic rejects.