build(deps): bump pydantic-ai from 1.107.0 to 2.22.0

[dependabot]

Bumps pydantic-ai from 1.107.0 to 2.22.0.

Release notes

Sourced from pydantic-ai's releases.

v2.22.0 (2026-07-31)

What's Changed

🚀 Features

• Allow MCPToolset clients to skip optional MCP tasks via prefer_tasks by @​adtyavrdhn in pydantic/pydantic-ai#6851
• Default Gemini VALIDATED tool mode on supported models by @​hramezani in pydantic/pydantic-ai#6353
• Stop advertising tool search for capability-owned deferred tools on Anthropic by @​DouweM in pydantic/pydantic-ai#6770
• Send mid-conversation system prompts as native system messages on Anthropic by @​DouweM in pydantic/pydantic-ai#6765
• Add RunContext.is_tool_available by @​DouweM in pydantic/pydantic-ai#7011

🐛 Bug Fixes

• Handle closed event loops in synchronous APIs by @​adtyavrdhn in pydantic/pydantic-ai#6850
• Compare full origin, not just hostname, when dropping credentials on safe_download redirects by @​pydanty[bot] in pydantic/pydantic-ai#6811
• Fix Temporal workflow livelock when anyio scope cancellation hits an in-flight activity await by @​DouweM in pydantic/pydantic-ai#6892
• Copy extra_headers before setdefault in OpenAI chat and Groq models by @​pydanty[bot] in pydantic/pydantic-ai#6868
• Support requesting approval or deferring a call from a tool's args_validator by @​DouweM in pydantic/pydantic-ai#6897
• Use the workflow-prepared tool_def in Temporal function-tool activities instead of re-running prepare by @​DouweM in pydantic/pydantic-ai#6890
• Raise a UserError instead of hanging when run_sync() is called on an event loop it cannot drive by @​DouweM in pydantic/pydantic-ai#6905
• Fix Prefect tool-call cache keys: replay tool results on flow retry and stop colliding on RunContext fields a tool can read by @​DouweM in pydantic/pydantic-ai#6944
• Run after_tool_validate when an args_validator defers the call by @​DouweM in pydantic/pydantic-ai#6961
• Preserve the host's Logfire configuration in the Temporal LogfirePlugin by @​DouweM in pydantic/pydantic-ai#6962
• Fail the workflow instead of retrying forever when a Temporal activity argument can't be serialized by @​DouweM in pydantic/pydantic-ai#6893
• Install the EnqueueGuard on the DBOS/Prefect model-request and cancel_suspended_response units by @​DouweM in pydantic/pydantic-ai#6943
• Restore typed values in a dynamic tool's Temporal ActivityConfig after the activity round trip by @​DouweM in pydantic/pydantic-ai#6947
• Reject unregistered Model instances in durable runs instead of re-inferring them from model_id by @​DouweM in pydantic/pydantic-ai#6898
• Heartbeat in tool, MCP, dynamic-toolset, and event-stream Temporal activities by @​DouweM in pydantic/pydantic-ai#6965
• Rehydrate sets, carry conversation_id, and hard-error on omitted fields in TemporalRunContext by @​DouweM in pydantic/pydantic-ai#6891
• Allow ApprovalRequired/CallDeferred from post-validation tool hooks, UserError from pre-validation ones by @​DouweM in pydantic/pydantic-ai#6951
• Raise a UserError when a history processor or fallback_on handler has unresolvable type annotations by @​DouweM in pydantic/pydantic-ai#6958
• Raise ModelAPIError for OpenRouter responses with null choices and no error envelope by @​ZacharyHampton in pydantic/pydantic-ai#6901
• Inline every $ref to a union $def, not just the first one by @​DouweM in pydantic/pydantic-ai#6960
• Reject unknown ActivityConfig keys in TemporalDurability by @​DouweM in pydantic/pydantic-ai#6964
• Honor per-tool TaskConfig on Prefect MCP tools and add PydanticUserError to its non-retryable set by @​DouweM in pydantic/pydantic-ai#6952
• Pass the unprepared request to the wrapped model in InstrumentedModel by @​DouweM in pydantic/pydantic-ai#6982
• fix(mcp): inherit agent retries in MCPToolset.tool_for_tool_def by @​hramezani in pydantic/pydantic-ai#6449
• Fail the workflow on HookTimeoutError and FallbackExceptionGroup instead of retrying forever by @​DouweM in pydantic/pydantic-ai#6978
• Keep thinking alive by not forcing tool_choice on OpenRouter anthropic/ models by @​DouweM in pydantic/pydantic-ai#6957
• Add configurable max_retries to ToolSearchToolset by @​pydanty[bot] in pydantic/pydantic-ai#6740
• Fix Temporal ActivityConfig validation on Python 3.10 and 3.11 by @​DouweM in pydantic/pydantic-ai#6989
• Pass pydantic_graph through Temporal workflow sandboxes by @​DouweM in pydantic/pydantic-ai#6990
• Memoize Temporal payload TypeAdapters by @​DouweM in pydantic/pydantic-ai#7001
• Preserve SystemPromptPart semantics across caching and Temporal by @​dsfaccini in pydantic/pydantic-ai#6984

📦 Dependencies

• Require genai-prices>=0.1.0 for detailed usage by @​alexmojaki in pydantic/pydantic-ai#6933
• Declare anyio as a direct dependency of pydantic-ai-slim and pydantic-graph by @​DouweM in pydantic/pydantic-ai#7008

New Contributors

• @​ZacharyHampton made their first contribution in pydantic/pydantic-ai#6901
• @​vgrozdanic made their first contribution in pydantic/pydantic-ai#6942
• @​rscholz98 made their first contribution in pydantic/pydantic-ai#6858

... (truncated)

Changelog

Sourced from pydantic-ai's changelog.

Upgrade Guide

In September 2025, Pydantic AI reached V1 and committed to API stability: no changes that break your code until V2. V2 is now available, collecting the breaking and behavior changes that stability guarantee didn't allow. This guide is the canonical place to learn what's in V2, how to install it, and how to upgrade; for the guarantees behind these version numbers, see the Version Policy.

Breaking Changes

Here's a filtered list of the breaking changes for each version to help you upgrade Pydantic AI.

v2.0.0 (2026-06-23)

The stable V2.0 release. There are no new breaking or behavior changes since the betas; the full breaking-change list and recommended upgrade path are in the v2.0.0b1 entry below. Install it with:

uv add pydantic-ai

v2.0.0b7 (2026-06-10)

The seventh V2 beta, forked from v1.107.0. There are no new V2 breaking or behavior changes since v2.0.0b6 below — everything in that entry applies unchanged — but this beta picks up the latest V1 release on top, which adds Claude Fable 5 / Mythos 5 model support and OpenRouter prompt caching (CachePoint), plus known_model_names() and Anthropic fixes; see the v1.107.0 release notes for the full list.

Install it the same way, pinning the exact pre-release version:

pip/uv-add "pydantic-ai==2.0.0b7"

For the full breaking-change list and the recommended upgrade path, see the v2.0.0b1 entry below; the only difference is that the latest V1 to upgrade through first is now v1.107.0.

v2.0.0b6 (2026-06-04)

The sixth V2 beta, forked from v1.106.0. There are no new V2 breaking or behavior changes since v2.0.0b5 below — everything in that entry applies unchanged — but this beta picks up the latest V1 release on top, which adds api_host/timeout configuration and base seed mapping for the xAI provider, plus streaming and data-URI handling fixes; see the v1.106.0 release notes for the full list.

Install it the same way, pinning the exact pre-release version:

pip/uv-add "pydantic-ai==2.0.0b6"

For the full breaking-change list and the recommended upgrade path, see the v2.0.0b1 entry below; the only difference is that the latest V1 to upgrade through first is now v1.106.0.

v2.0.0b5 (2026-06-02)

The fifth V2 beta, forked from v1.105.0. There are no new V2 breaking or behavior changes since v2.0.0b4 below — everything in that entry (including the prepare-callbacks change) still applies — but this beta picks up the latest V1 release on top, which adds on-demand (deferred-loading) capabilities and Grok 4.3 reasoning_effort support, plus GoogleModelSettings.google_cached_content and Temporal gateway/ fixes; see the v1.105.0 release notes for the full list.

Install it the same way, pinning the exact pre-release version:

pip/uv-add "pydantic-ai==2.0.0b5"

... (truncated)

Commits

• d9b4b25 Add RunContext.is_tool_available (#7011)
• 08d6405 Require ctx in tool_for_tool_def and fix the FunctionToolset retry budg...
• 74fc8f7 Unify AG-UI interrupt resume payload via a _ResumePayload Pydantic model (#...
• 3b9ab98 Preserve SystemPromptPart semantics across caching and Temporal (#6984)
• 0928b3a Declare anyio as a direct dependency of pydantic-ai-slim and `pydantic-gr...
• b46fba8 Memoize Temporal payload TypeAdapters (#7001)
• 9f83a64 Pass pydantic_graph through Temporal workflow sandboxes (#6990)
• ac914d1 Fix Temporal ActivityConfig validation on Python 3.10 and 3.11 (#6989)
• 703883c Route issue attention to its first maintainer in the triage channel (#6996)
• 6e96a74 docs: Add Sentry to alternative observability backends (#6942)
• Additional commits viewable in compare view

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

[mwbrooks]

This is a breaking change and related to #135 - we will need to fix the breaking changes to the MCP Server support.

[dependabot]

A newer version of pydantic-ai exists, but since this PR has been edited by someone other than Dependabot I haven't updated it. You'll get a PR for the updated version as normal once this PR is merged.

[zimeg]

@dependabot recreate