chore(deps): bump pydantic-ai from 2.54.0 to 2.55.0

[dependabot]

Bumps pydantic-ai from 2.54.0 to 2.55.0.

Release notes

Sourced from pydantic-ai's releases.

v2.55.0 (2026-10-09)

What's Changed

⚠️ Compatibility Notes

• Require Python 3.11 or newer in every package; Python 3.10 installs resolve to 2.54.0 and earlier by @​Kludex in pydantic/pydantic-ai#9526
• Record the tool requests of ExaSearch, YouSearch, LocalStack and other harness capabilities under durable execution by @​DouweM in pydantic/pydantic-ai#9705
• Bound retained realtime audio like retained images with retain_audio_max_seconds by @​DouweM in pydantic/pydantic-ai#9702
• Prefix LogfireMCP tool names with logfire_ by @​mpfaffenberger in pydantic/pydantic-ai#9868
• Serialize FileUrl.media_type as null for extensionless URLs instead of raising by @​pydanty in pydantic/pydantic-ai#8405
• Take realtime history, usage, and reply waits from the session core on OpenAI, Azure OpenAI, and xAI by @​DouweM in pydantic/pydantic-ai#9612
• Keep default run_id and conversation_id stable when a durable run is re-executed by @​DouweM in pydantic/pydantic-ai#9701
• Record each failed FallbackModel attempt with its model, timing, error and usage, and count rejected responses in RunUsage by @​DouweM in pydantic/pydantic-ai#8745

🚀 Features

• Add an OpenAIDecisionsModel backend with image input by @​DenysMoskalenko in pydantic/pydantic-ai#9634
• Halve import pydantic_ai time by loading pydantic_ai.mcp only when an MCP capability needs it by @​DouweM in pydantic/pydantic-ai#10046
• Add Conversation to carry and store a conversation between runs, accepted as conversation= by every entry point by @​DouweM in pydantic/pydantic-ai#8337
• Record prompt cache diagnostics in provider_details: on by default for OpenAI Responses, anthropic_cache_diagnostics opt-in by @​DouweM in pydantic/pydantic-ai#9406
• Report prompt-cache health per conversation via pydantic_ai.cache.* span attributes and collapse events by @​DouweM in pydantic/pydantic-ai#6534
• Default Azure AI Voice Live to API version 2026-07-15 and apply parallel_tool_calls=False there by @​DouweM in pydantic/pydantic-ai#9409
• Raise Azure AI Voice Live warning events as Python warnings instead of dropping them by @​DouweM in pydantic/pydantic-ai#9420
• Add openai_cache_instructions to place a prompt cache breakpoint on the instructions by @​adtyavrdhn in pydantic/pydantic-ai#7559
• Add hang_up() to end a WebRTC call from the server on gpt-realtime and GPT-Live by @​DouweM in pydantic/pydantic-ai#9342
• Add PostgresStepStore and PostgresMediaStore, the hosted Postgres backends for messages and media by @​rscholz98 in pydantic/pydantic-ai#9899
• Add unified cache setting and Caching capability for cross-provider prompt caching by @​adtyavrdhn in pydantic/pydantic-ai#7560
• Add support for claude-haiku-5-5 by @​dsfaccini in pydantic/pydantic-ai#9998
• Seed message_history into a WebRTC call through answer_webrtc_offer by @​DouweM in pydantic/pydantic-ai#9338
• Configure Azure AI Voice Live semantic VAD, end-of-utterance detection, noise suppression and echo cancellation by @​DouweM in pydantic/pydantic-ai#9414
• Cache the instructions and tool definitions too when cache=True uses Anthropic's automatic caching by @​DouweM in pydantic/pydantic-ai#10047
• Turn on prompt caching by default in harness Coder by @​DouweM in pydantic/pydantic-ai#10040
• Add openai_live_idle_audio so text-only GPT-Live sessions work without a microphone by @​DouweM in pydantic/pydantic-ai#9295

🐛 Bug Fixes

• Read Codex CLI auth.json as UTF-8 regardless of platform locale by @​pydanty in pydantic/pydantic-ai#8254
• Avoid false WarnOnCacheBusts warnings after native tool calls by @​aweis89 in pydantic/pydantic-ai#9746
• Run a capability durable_operation inline when it is called from inside a durable unit by @​DouweM in pydantic/pydantic-ai#9700
• End an xAI realtime session on a max_duration error instead of reconnecting into the same limit by @​DouweM in pydantic/pydantic-ai#9415
• Attach a leading CachePoint to the previous message on OpenAI instead of raising by @​DouweM in pydantic/pydantic-ai#9582
• Keep the run state recoverable when Ctrl-C interrupts run_stream_sync() mid-output by @​DouweM in pydantic/pydantic-ai#9709
• Raise BedrockEmbeddingModel errors as ModelHTTPError/ModelAPIError instead of an ExceptionGroup, and map botocore transport errors by @​DouweM in pydantic/pydantic-ai#9314
• Record GPT-Live's final usage on close by ending the session with session.close by @​DouweM in pydantic/pydantic-ai#9403
• Stop a numeric request timeout from lengthening the connect and pool timeouts of Pydantic AI-created HTTP clients by @​DouweM in pydantic/pydantic-ai#9599
• Don't record an OpenAI realtime idle_timeout_ms follow-up as an empty user turn by @​DouweM in pydantic/pydantic-ai#9396
• Close out interrupted tool calls when resuming a sub-agent with delegate_task(resume=...) by @​DouweM in pydantic/pydantic-ai#9783
• Publish AgentRunResult's public shape in its validation JSON schema by @​DouweM in pydantic/pydantic-ai#9791
• Record Planning's plan store calls under durable execution, so recovery doesn't repeat its writes by @​DouweM in pydantic/pydantic-ai#9789
• Report malformed GPT-Live events as recoverable errors instead of dropping them by @​DouweM in pydantic/pydantic-ai#9393
• Record each Memory tool call under durable execution, so a forked DBOS workflow doesn't repeat its writes by @​DouweM in pydantic/pydantic-ai#9832
• Replay a spoken realtime turn without a transcript as a marker on reconnect instead of dropping it by @​DouweM in pydantic/pydantic-ai#9782
• Don't let openai_prompt_cache_retention widen the cache-health window on GPT-5.6+ by @​DouweM in pydantic/pydantic-ai#9851
• Hide MCP Apps tools whose _meta.ui.visibility leaves out "model" from the model in MCPToolset by @​adtyavrdhn in pydantic/pydantic-ai#9862

... (truncated)

Commits

• 7db7a4d Add an OpenAIDecisionsModel backend with image input (#9634)
• 4e9d555 Raise earlier Anthropic cache breakpoints to a later, longer TTL so requests ...
• 352b198 Raise ModelAPIError for transport errors that escaped Google, Mistral, Cohe...
• 1040a5a Charge FallbackModel attempts once in SpendLimits when a failed continuat...
• 3bcf631 Record errors clai2 handles as exceptions in Logfire (#9797)
• 3742e5c Fix TextOutput JSON schema to infer the wrapped function's return annotatio...
• 943ade7 Add openai_live_idle_audio so text-only GPT-Live sessions work without a mi...
• a24f76e Turn on prompt caching by default in harness Coder (#10040)
• 299bd60 Charge SpendLimits budgets for responses a FallbackModel rejected (#9792)
• 90051ef Fix merge_json_schema_defs corrupting branch schemas on transitive def-name...
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@dependabot rebase

[dependabot]

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