feat: Support AgentExectuor enqueue of a Task object.#960
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guglielmo-san merged 1 commit into1.0-devfrom Apr 10, 2026
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feat: Support AgentExectuor enqueue of a Task object.#960guglielmo-san merged 1 commit into1.0-devfrom
guglielmo-san merged 1 commit into1.0-devfrom
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🧪 Code Coverage (vs
|
| Base | PR | Delta | |
|---|---|---|---|
| src/a2a/server/agent_execution/active_task.py | 95.51% | 95.57% | 🟢 +0.06% |
| src/a2a/server/request_handlers/default_request_handler_v2.py | 92.24% | 92.67% | 🟢 +0.43% |
| Total | 92.47% | 92.49% | 🟢 +0.02% |
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This pull request modifies the task execution logic to prevent existing tasks from being overwritten and updates integration tests to utilize the DefaultRequestHandler. A new test case was added to ensure that duplicate task enqueues are handled correctly. Review feedback identifies a critical issue where the initial message history is lost when a Task event is processed, along with suggestions to eliminate redundant assignments and improve code conciseness.
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🤖 I have created a release *beep* *boop* --- ## [1.0.0-alpha.1](v1.0.0-alpha.0...v1.0.0-alpha.1) (2026-04-10) ### ⚠ BREAKING CHANGES * **client:** make ClientConfig.push_notification_config singular ([#955](#955)) * **client:** reorganize ClientFactory API ([#947](#947)) * **server:** add build_user function to DefaultContextBuilder to allow A2A user creation customization ([#925](#925)) * **client:** remove `ClientTaskManager` and `Consumers` from client ([#916](#916)) * **server:** migrate from Application wrappers to Starlette route-based endpoints for rest ([#892](#892)) * **server:** migrate from Application wrappers to Starlette route-based endpoints for jsonrpc ([#873](#873)) ### Features * A2A Version Header validation on server side. ([#865](#865)) ([b261ceb](b261ceb)) * Add GetExtendedAgentCard Support to RequestHandlers ([#919](#919)) ([2159140](2159140)) * Add support for more Task Message and Artifact fields in the Vertex Task Store ([#936](#936)) ([605fa49](605fa49)) * Create EventQueue interface and make tap() async. ([#914](#914)) ([9ccf99c](9ccf99c)), closes [#869](#869) * EventQueue - unify implementation between python versions ([#877](#877)) ([7437b88](7437b88)), closes [#869](#869) * EventQueue is now a simple interface with single enqueue_event method. ([#944](#944)) ([f0e1d74](f0e1d74)) * Implementation of DefaultRequestHandlerV2 ([#933](#933)) ([462eb3c](462eb3c)), closes [#869](#869) * InMemoryTaskStore creates a copy of Task by default to make it consistent with database task stores ([#887](#887)) ([8c65e84](8c65e84)), closes [#869](#869) * merge metadata of new and old artifact when append=True ([#945](#945)) ([cc094aa](cc094aa)) * **server:** add async context manager support to EventQueue ([#743](#743)) ([f68b22f](f68b22f)) * **server:** validate presence according to `google.api.field_behavior` annotations ([#870](#870)) ([4586c3e](4586c3e)) * Simplify ActiveTask.subscribe() ([#958](#958)) ([62e5e59](62e5e59)) * Support AgentExectuor enqueue of a Task object. ([#960](#960)) ([12ce017](12ce017)) * Support Message-only simplified execution without creating Task ([#956](#956)) ([354fdfb](354fdfb)) * Unhandled exception in AgentExecutor marks task as failed ([#943](#943)) ([4fc6b54](4fc6b54)) ### Bug Fixes * Add `packaging` to base dependencies ([#897](#897)) ([7a9aec7](7a9aec7)) * **client:** do not mutate SendMessageRequest in BaseClient.send_message ([#949](#949)) ([94537c3](94537c3)) * fix `athrow()` RuntimeError on streaming responses ([#912](#912)) ([ca7edc3](ca7edc3)) * fix docstrings related to `CallContextBuilder` args in constructors and make ServerCallContext mandatory in `compat` folder ([#907](#907)) ([9cade9b](9cade9b)) * fix error handling for gRPC and SSE streaming ([#879](#879)) ([2b323d0](2b323d0)) * fix JSONRPC error handling ([#957](#957)) ([6c807d5](6c807d5)) * fix REST error handling ([#893](#893)) ([405be3f](405be3f)) * handle SSE errors occurred after stream started ([#894](#894)) ([3a68d8f](3a68d8f)) * remove the use of deprecated types from VertexTaskStore ([#889](#889)) ([6d49122](6d49122)) * Remove unconditional SQLAlchemy dependency from SDK core ([#898](#898)) ([ab762f0](ab762f0)), closes [#883](#883) * remove unused import and request for FastAPI in pyproject ([#934](#934)) ([fe5de77](fe5de77)) * replace stale entry in a2a.types.__all__ with actual import name ([#902](#902)) ([05cd5e9](05cd5e9)) * wrong method name for ExtendedAgentCard endpoint in JsonRpc compat version ([#931](#931)) ([5d22186](5d22186)) ### Documentation * add Database Migration Documentation ([#864](#864)) ([fd12dff](fd12dff)) ### Miscellaneous Chores * release 1.0.0-alpha.1 ([a61f6d4](a61f6d4)) ### Code Refactoring * **client:** make ClientConfig.push_notification_config singular ([#955](#955)) ([be4c5ff](be4c5ff)) * **client:** remove `ClientTaskManager` and `Consumers` from client ([#916](#916)) ([97058bb](97058bb)), closes [#734](#734) * **client:** reorganize ClientFactory API ([#947](#947)) ([01b3b2c](01b3b2c)) * **server:** add build_user function to DefaultContextBuilder to allow A2A user creation customization ([#925](#925)) ([2648c5e](2648c5e)) * **server:** migrate from Application wrappers to Starlette route-based endpoints for jsonrpc ([#873](#873)) ([734d062](734d062)) * **server:** migrate from Application wrappers to Starlette route-based endpoints for rest ([#892](#892)) ([4be2064](4be2064)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
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Fixes Task object handling when using new DefaultRequestHandlerV2.
Fixes #869🦕