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Stream tool calls and structured output from Anthropic as it's received instead of in one go #1669

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Merged
merged 3 commits into from
May 21, 2025
Merged

Stream tool calls and structured output from Anthropic as it's received instead of in one go #1669

merged 3 commits into from
May 21, 2025

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DouweM
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@DouweM DouweM commented May 8, 2025 •
edited by Kludex
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  • Partial JSON is already handled properly by the PartsManager and ToolCallPartDelta.
  • In testing, the RawContentBlockStartEvent with ToolUseBlock always has input {}.

@DouweM DouweM mentioned this pull request May 8, 2025
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@DouweM DouweM requested a review from Kludex May 8, 2025 12:57
@DouweM DouweM changed the title Fix streaming partial tool call responses from Anthropic Fix streaming partial tool calls from Anthropic May 8, 2025
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commit: 1306f44
Preview URL: https://86b2ed45-pydantic-ai-previews.pydantic.workers.dev

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DouweM commented May 8, 2025

CI failures are the same as in #1668 so unrelated to this PR.

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Kludex commented May 8, 2025

"Fix streaming partial tool calls from Anthropic" = "Don't parse partial JSON delta on Anthropic streaming"?

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Kludex commented May 8, 2025

"Fix streaming partial tool calls from Anthropic" = "Don't parse partial JSON delta on Anthropic streaming"?

Please make the title a bit more specific before merging it, if it makes sense.

@DouweM DouweM changed the title Fix streaming partial tool calls from Anthropic Stream tool calls and structured output from Anthropic as parts instead of one final chunk May 8, 2025
@DouweM DouweM changed the title Stream tool calls and structured output from Anthropic as parts instead of one final chunk Stream tool calls and structured output from Anthropic as it's received instead of in one go May 8, 2025
@DouweM DouweM enabled auto-merge (squash) May 8, 2025 14:51
@DouweM DouweM merged commit 0810eed into main May 21, 2025
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@DouweM DouweM deleted the anthropic-tool-call-streaming branch May 21, 2025 23:09
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Structured streaming doesn't work with claude (Stream Whale example) Anthropic streaming returns in single chunk when agent result_type is specified
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