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Pydantic AI Updates: August 1, 2026

pydantic-ai release mcp gemini

1. Pydantic AI v2.22.0 Adds Tool Availability Checks and Gemini Validated Mode

Pydantic AI. Pydantic AI released v2.22.0, adding a RunContext.is_tool_available helper that lets MCP clients skip optional tasks, and defaulting Gemini to its VALIDATED tool mode. The release also bumps the genai-prices dependency to 0.1.0 and includes fixes for event-loop handling, Temporal workflows, and tool validation hooks. Source