fix(providers): fix duplicate tool use in anthropic - #4596
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chrarnoldus merged 3 commits intoDec 20, 2025
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chrarnoldus
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chrarnoldus
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This was referenced Dec 19, 2025
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Context
Fixes duplicate tool_use emissions in Anthropic tool streaming. The current flow produces both
tool_call_partialand a fulltool_call, which results in the same id being emitted twice and API provider rejecting the request with "tool_useids must be unique". This shows up easily with tools likeask_followup_question.Implementation
Removed the Anthropic
ToolCallAccumulatorAnthropicoutput so we rely solely ontool_call_partial, lettingNativeToolCallParserhandle streaming assembly and completion.Screenshots
How to Test
Configure the provider without changing nothing, then start a new chat, let AI ask your some question, 100% repeation.
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