2 Commits

• Python: [BREAKING] Migrate agent-framework-a2a to a2a-sdk v1.0 (#5752)

  * Python: Migrate agent-framework-a2a to a2a-sdk v1.0
  
  Upgrade the a2a-sdk dependency from v0.3.x to v1.0.0 and migrate all
  source, tests, samples, and documentation to the v1.0 API.
  
  Key changes:
  - Dependency: a2a-sdk>=1.0.0,<2 (was >=0.3.5,<0.3.24)
  - Types are now protobuf-based: Part replaces TextPart/FilePart/DataPart
  - Enums use SCREAMING_SNAKE_CASE (e.g. TaskState.TASK_STATE_COMPLETED)
  - Roles: Role.ROLE_AGENT, Role.ROLE_USER
  - Client: SendMessageRequest wrapper, subscribe() replaces resubscribe()
  - Server: A2AStarletteApplication replaced by Starlette + route factories
  - DefaultRequestHandler now requires agent_card parameter
  - TaskUpdater: final parameter removed, add_artifact gains last_chunk
  - AgentCard.url removed; use supported_interfaces with AgentInterface
  - Stream yields StreamResponse with WhichOneof('payload')
  
  Closes #5661
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  * Address PR review: validate fallback URL, remove unused task_id vars
  
  - Raise ValueError with clear message when transport negotiation fails
    and no fallback URL is available (neither url arg nor supported_interfaces)
  - Remove unused task_id local in status_update branch
  - Inline artifact_event.task_id directly in artifact_update branch
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
  
  ---------
  
  Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

  Giles Odigwe · 2026-05-11 22:46:12 +00:00
  4ad96b64e7
• Python: feat: Add Agent Framework to A2A bridge support (#2403)

  * feat: Add Agent Framework to A2A bridge support
  
  - Implement A2A event adapter for converting agent messages to A2A protocol
  - Add A2A execution context for managing agent execution state
  - Implement A2A executor for running agents in A2A environment
  - Add comprehensive unit tests for event adapter, execution context, and executor
  - Update agent framework core A2A module exports and type stubs
  - Integrate thread management utilities for async execution
  - Add getting started sample for A2A agent framework integration
  - Update dependencies in uv.lock
  
  This integration enables agent framework agents to communicate and execute within the A2A (Agent to Agent) infrastructure.
  
  * fix: Update references from agent_thread_storage to _agent_thread_storage in A2A executor tests
  
  * Refactor A2A agent framework and improve code structure
  
  - Reordered imports in various files for consistency and clarity.
  - Updated `__all__` definitions to maintain a consistent order across modules.
  - Simplified method signatures by removing unnecessary line breaks.
  - Enhanced readability by adjusting formatting in several sections.
  - Removed redundant comments and example scenarios in the execution context.
  - Improved handling of agent messages in the event adapter.
  - Added type hints for better clarity and type checking.
  - Cleaned up test cases for better organization and readability.
  
  * fix: Lint fix new line added
  
  * test: Add unit tests for AgentThreadStorage and InMemoryAgentThreadStorage
  
  * refactor: Update type hints to use new syntax for Union and List
  
  * fix: Validate RequestContext for context_id and message before execution
  
  * Refactor tests and remove A2aExecutionContext references
  
  - Deleted the test file for A2aExecutionContext as it is no longer needed.
  - Updated A2aExecutor tests to remove dependencies on A2aExecutionContext and adjusted method calls accordingly.
  - Modified event adapter tests to use ChatMessage instead of AgentRunResponseUpdate.
  - Removed A2aExecutionContext from imports in agent_framework.a2a module and updated type hints accordingly.
  
  * Refactor A2AExecutor tests and remove event adapter
  
  - Updated test cases to use A2AExecutor instead of A2aExecutor for consistency.
  - Removed mock_event_adapter fixture and related tests as A2aEventAdapter is deprecated.
  - Consolidated event handling tests into TestA2AExecutorEventAdapter.
  - Adjusted imports in various files to reflect the removal of deprecated components.
  - Ensured all references to A2aExecutor are updated to A2AExecutor across the codebase.
  
  * refactor: Remove AgentThreadStorage and InMemoryAgentThreadStorage classes from threads and tests
  
  * feat: A2AExecutor to have its own override able save and get threads methods for persistent storage.
  
  * fix: linter bugs
  
  * removed unnecessary changes form core package
  
  * new line added
  
  * Refactor A2AExecutor tests and update imports
  
  - Consolidated mock agent fixtures in test_a2a_executor.py to simplify agent mocking.
  - Removed redundant tests related to thread storage and agent types, focusing on A2AExecutor's core functionality.
  - Updated test assertions to reflect changes in message handling with new Message and Content classes.
  - Enhanced integration tests to ensure compatibility with the new agent framework structure.
  - Added A2AExecutor to the module exports in __init__.py and __init__.pyi for better accessibility.
  
  * Update A2A documentation: enhance usage examples for A2AAgent and A2AExecutor
  
  * Updated uv lock
  
  * Fix metadata assertion in TestA2AExecutorHandleEvents and reorder load_dotenv call in agent_framework_to_a2a.py
  
  * Update agent card configuration: add default input and output modes, and fix agent creation method
  
  * Fix assertion for metadata in TestA2AExecutorHandleEvents
  
  * Fix formatting issues in TestA2AExecutorExecute and TestA2AExecutorIntegration
  
  * Enhance A2AExecutor documentation with examples and clarify agent execution process
  
  * Revert uv lock to main
  
  * Refactor A2AExecutor: Improve formatting and streamline constructor parameters
  
  * Apply suggestions from code review
  
  Co-authored-by: Eduard van Valkenburg <eavanvalkenburg@users.noreply.github.com>
  
  * Refactor A2AExecutor to use SupportsAgentRun and enhance logging; update agent framework sample for flight and hotel booking capabilities
  
  * Enhance A2AExecutor with streaming support and custom run arguments; update tests for initialization and execution scenarios
  
  * Enhance A2AExecutor event handling with streamed artifact tracking; update tests for new behavior
  
  * Refactor A2AExecutor to enforce type hints for stream and run_kwargs attributes
  
  * Refactor A2AExecutor and tests: replace AsyncMock with MagicMock for response stream handling; clean up imports in agent_framework_to_a2a.py
  
  * refactor: streamline imports and improve code readability across multiple files
  
  * feat: enhance A2AExecutor cancel method with context validation and fixed review comments
  
  * feat: implement get_uri_data utility function for extracting base64 data from data URIs and update references
  
  * fix: update import path for get_uri_data utility function in A2AExecutor and A2AAgent
  
  * fix: correct error message handling in A2AExecutor and update test assertions
  
  ---------
  
  Co-authored-by: Eduard van Valkenburg <eavanvalkenburg@users.noreply.github.com>

  Shubham Kumar · 2026-04-24 08:35:40 +00:00
  b00465d7be