feat: upgrade a2a-sdk dependency to v1.0.0-alpha.0 (A2A 1.0 spec)#5160
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feat: upgrade a2a-sdk dependency to v1.0.0-alpha.0 (A2A 1.0 spec)#5160Sravan1011 wants to merge 1 commit intogoogle:mainfrom
Sravan1011 wants to merge 1 commit intogoogle:mainfrom
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- Bump a2a-sdk from 0.3.x to >=1.0.0a0 - Migrate from Pydantic models to Protocol Buffer messages - Replace TextPart/DataPart with unified Part proto - Update all enums to proto naming (Role.ROLE_USER, TaskState.TASK_STATE_SUBMITTED, etc.) - Replace deprecated AgentCard.url with supported_interfaces - Switch to MessageToDict for proto serialization - Remove deprecated request_metadata from send_message - Fix (update, task) tuple unpacking for streaming responses All 426 tests pass (315 a2a + 94 remote agent + 17 agent registry).
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Title: feat: upgrade a2a-sdk dependency to v1.0.0-alpha.0 (A2A 1.0 spec)
Description:
Summary
Closes #5056
Upgrades the a2a-sdk dependency from 0.3.x to >=1.0.0a0 to support the A2A 1.0 specification with proto-based types.
Changes
Dependency:
Bumped a2a-sdk from >=0.3.4,<0.4.0 to >=1.0.0a0 in both [a2a] and [test] extras
Proto Migration (18 source files):
Replaced TextPart/DataPart with unified Part proto (.text, .inline_data fields)
Updated all enums to proto naming (Role.ROLE_USER, TaskState.TASK_STATE_SUBMITTED, etc.)
Replaced deprecated AgentCard.url with supported_interfaces
Switched to MessageToDict from google.protobuf.json_format for proto serialization
Removed deprecated request_metadata parameter from send_message
Fixed (update, task) tuple unpacking for A2A 1.0 streaming responses
Updated ClientCallContext import from a2a.client (previously a2a.client.middleware)
Updated AgentRegistry to dynamically migrate legacy url fields to supported_interfaces
Tests (17 test files):
Updated all test mocks to use proto-based types instead of Pydantic models
Replaced Mock(spec=TextPart) with real Part() proto instances
Updated all enum references and tuple argument ordering in test assertions