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fix(server): allow recovery after status event validation fails - #1365
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Iwaniukooo11 merged 5 commits intoOct 26, 2026
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🧪 Code Coverage (vs
|
| Base | PR | Delta | |
|---|---|---|---|
| src/a2a/server/tasks/task_updater.py | 94.83% | 98.31% | 🟢 +3.48% |
| Total | 93.01% | 93.03% | 🟢 +0.02% |
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HowieYin
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Iwaniukooo11
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🤖 I have created a release *beep* *boop* --- ## [1.3.0](v1.2.3...v1.3.0) (2026-10-27) ### Features * **server:** release parked interrupted tasks after a configurable timeout ([#1338](#1338)) ([b22a68d](b22a68d)) ### Bug Fixes * **client:** Create separate httpx per client when none configured ([#1358](#1358)) ([d316d0e](d316d0e)) * **client:** raise A2A errors for malformed JSON-RPC responses ([#1375](#1375)) ([7e55413](7e55413)) * **client:** rejections from unrecognized fields ([#1354](#1354)) ([91929cd](91929cd)) * **compat:** keep an unset v0.3 status message and provider as None ([#1362](#1362)) ([cdb4799](cdb4799)), closes [#1361](#1361) * **compat:** return A2A error codes from the v0.3 JSON-RPC adapter ([#1369](#1369)) ([8e32d53](8e32d53)) * **compat:** set last_updated when storing a task in v0.3 format ([#1372](#1372)) ([30b6d50](30b6d50)), closes [#1371](#1371) * **core:** restore structured __repr__ on A2A exceptions ([#1348](#1348)) ([79a6f45](79a6f45)) * **server:** allow recovery after status event validation fails ([#1365](#1365)) ([ca3ef0d](ca3ef0d)) * **server:** apply history_length to legacy streaming sends ([#1364](#1364)) ([261c074](261c074)) * **server:** include legacy task states in database list filters ([#1337](#1337)) ([e12d494](e12d494)) * **server:** record executor failures through the event consumer ([#1366](#1366)) ([ad85806](ad85806)) * **server:** reject boolean JSON-RPC request IDs ([#1350](#1350)) ([05392b3](05392b3)) * skip malformed agent card signature headers ([#1335](#1335)) ([b21a144](b21a144)) ### Documentation * **helpers:** note that whole numbers in a data Part come back as floats ([#1373](#1373)) ([654774f](654774f)) ### Miscellaneous Chores * release 1.3.0 ([#1389](#1389)) ([fb6373f](fb6373f)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: mykytanetipa <mykytanetipa@google.com>
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Problem
TaskUpdater.update_status()sets the terminal flag before constructing the status event. An invalid timestamp, message, or metadata can then raise an exception before anything reaches the queue.For example, after a
COMPLETEDupdate with an invalid timestamp, callingfailed()to report the error raises aRuntimeErrorsaying the task is already terminal. The updater never published the completion event.Fix
Construct the complete
TaskStatusUpdateEventbefore setting the terminal flag, so a construction error leaves the updater able to report a failure. The flag is still set under the existing lock, before enqueueing.Tests
DefaultRequestHandlerV2returns and stores aFAILEDtask after the agent catches a status validation error.Local validation on Python 3.10:
./scripts/lint.shpasses (Ruff, formatting, and ty).UV_OFFLINE=1 uv run pytest --cov=a2a --cov-report=term --cov-fail-under=88: 2,312 passed, 183 skipped, 3 xfailed, 1 xpassed, with 92.95% coverage.The 183 skips are 182 PostgreSQL/MySQL tests without configured test databases and one SQLite row-lock test. The existing xfail/xpass cases reference #869. The first online runs hit the cross-version fixture's three-second startup timeout while uv downloaded or resolved legacy SDK dependencies; the full run passes with those dependencies cached and offline mode enabled.
GitHub CI for the updated commit is pending.