[dependabot]

Bumps pydantic-ai-slim from 2.55.0 to 2.56.0.

Release notes

Sourced from pydantic-ai-slim's releases.

v2.56.0 (2026-10-13)

What's Changed

⚠️ Compatibility Notes

• Run BrowserUse on the host model by default and make browser-use telemetry opt-in by @​mpfaffenberger in pydantic/pydantic-ai#9506

🚀 Features

• Let Skills layer project and personal libraries, name each skill's directory, and render a skill for a host command by @​DouweM in pydantic/pydantic-ai#9802
• Add base_url argument to ZaiProvider by @​aisk in pydantic/pydantic-ai#10099
• Adds PGTaskDurability based on pgtask by @​adtyavrdhn in pydantic/pydantic-ai#10174
• Adds Render Workflows Integration for Durable Execution engines by @​ojusave in pydantic/pydantic-ai#9439
• Remove WarnNearLimits from the harness Coder capability by @​adtyavrdhn in pydantic/pydantic-ai#9969
• Add SmolSandbox: a workspace that runs harness capabilities in a local smolvm microVM by @​mpfaffenberger in pydantic/pydantic-ai#10148
• Support Gemini 4 Argon (gemini-4-argon) on GoogleModel with long decode past the per-request output cap, and raise the Google providers' default timeout to 20 minutes by @​dsfaccini in pydantic/pydantic-ai#10202
• Support Python 3.15 by @​adtyavrdhn in pydantic/pydantic-ai#10064

🐛 Bug Fixes

• Keep a send_audio() chunk whose send fails out of the realtime SpeechPart.audio recorded while it was sending by @​DouweM in pydantic/pydantic-ai#10058
• Explain the Bedrock data retention opt-in when Claude Fable 5 / 5.1 reject the default mode by @​DouweM in pydantic/pydantic-ai#10050
• Apply auth to requests through MCPToolset(http_client=...) and stop closing the user-supplied client by @​DouweM in pydantic/pydantic-ai#10051
• Allow list-form tool_choice to name output tools, and accept static lists that include one by @​adtyavrdhn in pydantic/pydantic-ai#8565
• Raise ModelAPIError when a 200 response from OpenAI Responses, Anthropic, Groq or OpenAI images has a text/plain body by @​DouweM in pydantic/pydantic-ai#10065
• Stop sending explicit prompt caching fields to the openai-codex backend by @​aisk in pydantic/pydantic-ai#10103
• Use openai-decisions pricing before matching the shared OpenAI base URL by @​dsfaccini in pydantic/pydantic-ai#10122
• Unwrap decorated partials when inferring evaluation task names by @​pydanty in pydantic/pydantic-ai#10121
• Stop harness context estimates double-counting changed instructions and tool-returned files by @​mpfaffenberger in pydantic/pydantic-ai#9929
• Support adjustable reasoning on mistral-large-4 and mistral-large-4-0 by @​pydanty in pydantic/pydantic-ai#9967
• Map every UsageLimits field to an explicit ACP stop reason by @​mpfaffenberger in pydantic/pydantic-ai#9497
• Record native tool events in gh-aw sessions by @​dsfaccini in pydantic/pydantic-ai#10000
• Retry stale thinking blocks with drop_block when Bedrock rejects them by @​mpfaffenberger in pydantic/pydantic-ai#9486
• Fix import pydantic_ai.models on Pyodide by skipping the eager httpcore2 import on Emscripten by @​adtyavrdhn in pydantic/pydantic-ai#10134
• Replay xAI server-side tool results as tool turns paired with their calls by @​kevinwmerritt in pydantic/pydantic-ai#10043
• Keep one summary, receipt and system prompt copy across repeated SummarizingCompaction runs by @​aweis89 in pydantic/pydantic-ai#9716
• Run gathered CodeMode calls concurrently under parallel_ordered_events by @​mpfaffenberger in pydantic/pydantic-ai#10137
• Keep the Memory snapshot with the latest user prompt instead of after tool results by @​mpfaffenberger in pydantic/pydantic-ai#10192
• Stop AnthropicModel picking native structured output that Bedrock rejects on AsyncAnthropicBedrock by @​dsfaccini in pydantic/pydantic-ai#10207
• Propagate Exa 402 payment-required errors instead of retrying them by @​pydanty in pydantic/pydantic-ai#9816
• Raise WorkspaceUnavailableError when a Sprite is deleted during a command, whatever its exit code by @​mpfaffenberger in pydantic/pydantic-ai#10193

📦 Dependencies

• Bump genai-prices to 0.1.10 and keep tests passing on rich 15, dbos 3 and e2b 2.55 by @​dsfaccini in pydantic/pydantic-ai#10077

New Contributors

• @​kevinwmerritt made their first contribution in pydantic/pydantic-ai#10043
• @​ojusave made their first contribution in pydantic/pydantic-ai#9439
• @​sharosoo made their first contribution in pydantic/pydantic-ai#9965
• @​ninglinLiu made their first contribution in pydantic/pydantic-ai#10171

Full Changelog: pydantic/pydantic-ai@v2.55.0...v2.56.0

Commits

• 4cd8281 Support Gemini 4 Argon (gemini-4-argon) on GoogleModel with long decode p...
• 5f4450b Use postgres:16 for the test-all-extras service (#10216)
• 9347cef Leave prompts and files out of clai2 observability traces unless `include...
• f05831a Add SmolSandbox: a workspace that runs harness capabilities in a local smol...
• 40e8faf Raise WorkspaceUnavailableError when a Sprite is deleted during a command, ...
• c2028dc Propagate Exa 402 payment-required errors instead of retrying them (#9816)
• 9d3a0d5 Let clai2's observability plugin read Logfire managed variables with a `/...
• a6dd855 Skip Dependabot pull_request completions in Agent Provider Health (#10213)
• ca7487f Stop AnthropicModel picking native structured output that Bedrock rejects o...
• b8c1850 Use the result.usage property in the SystemReminders docs (#10171)
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