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README.md 2025-07-10 6.8 kB
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1.6.1 (2025-07-09)

Features

  • Add A2A support as experimental features f0183a9
  • Install google-adk with a2a extra: pip install google-adk[a2a]
  • Users can serve agents as A2A agent with --a2a option for adk web and adk api_server
  • Users can run a remote A2A agent with RemoteA2AAgent class

  • Three A2A agent samples are added:

    • contributing/samples/a2a_basic
    • contributing/samples/a2a_auth
    • contributing/samples/a2a_human_in_loop

  • Support agent hot reload.e545e5a Users can add --reload_agents flag to adk web and adk api_server command to reload agents automatically when new changes are detected.

  • Eval features

  • Implement auto rater-based evaluator for responses 75699fb
  • Add Safety evaluator metric 0bd05df

  • Add BaseEvalService declaration and surrounding data models b0d88bf

  • Minor features

  • Add custom_metadata to VertexAiSessionService when adding events a021222
  • Support protected write in BigQuery execute_sql tool dc43d51
  • Added clone() method to BaseAgent to allow users to create copies of an agent [d263afd] (https://github.com/google/adk-python/commit/d263afd91ba4a3444e5321c0e1801c499dec4c68)

Bug Fixes

  • Support project-based gemini model path to use enterprise_web_search_tool e33161b
  • Use inspect.signature() instead of typing.get_type_hints for examining function signatures4ca77bc
  • Replace Event ID generation with UUID4 to prevent SQLite integrity constraint failures e437c7a
  • Remove duplicate options from adk deploy 3fa2ea7
  • Fix scenario where a user can access another users events given the same session id 362fb3f
  • Handle unexpected 'parameters' argument in FunctionTool.run_async 0959b06
  • Make sure each partial event has different timestamp 17d6042
  • Avoid pydantic.ValidationError when the model stream returns empty final chunk 9b75e24
  • Fix google_search_tool.py to support updated Gemini LIVE model naming 77b869f
  • Adding detailed information on each metric evaluation 04de3e1
  • Converts litellm generate config err 3901fad
  • Save output in state via output_key only when the event is authored by current agent 20279d9
  • Treat SQLite database update time as UTC for session's last update time 3f621ae
  • Raise ValueError when sessionId and userId are incorrect combination(#1653) 4e765ae
  • Support API-Key for MCP Tool authentication 045aea9
  • Lock LangGraph version to <= 0.4.10 9029b8a
  • Update the retry logic of create session polling 3d2f13c

Chores

  • Extract mcp client creation logic to a separate method 45d60a1
  • Add tests for live streaming configs bf39c00
  • Update ResponseEvaluator to use newer version of Eval SDK 62c4a85
  • Add util to build our llms.txt and llms-full.txt files a903c54
  • Create an example for multi agent live streaming a58cc3d
  • Refactor the ADK Triaging Agent to make the code easier to read b6c7b5b

Documentation

Source: README.md, updated 2025-07-10