PR20985 sharedClaude subagent tasks
Heada5d3ec70fcd75f428432a38cce0d43441dc8484f base1451e7cb23034d29774338608368a15d8845df36
286before→286after, oneexistingadaptertestfile. Integratedregressionreplacesoldexclusionexpectation, no newtestcase.
Before: exactmainproduction withdesiredtest fails expected3planupdates got1.
After: full286pass actualbaselineandrestoredgreen. Productionbyte-restored afternegativecontrol.
RootTaskCreate seedslist; childTaskUpdate completesroot; childtext-onlyTaskCreate returnsid/subject andadds pendingtasktosameplan.
RequestedsubjectRequestedChildtask vsreturnedChildtask verifiesreturnedtextwins.
Failed andcancelled-withoutis_error updatesskipped. Threeeventsoneplanid;finalrootcompletedchildpending.
ExistingTaskListreplacement/emptylist/deletion/unknownid/batchmatching tests pass.
Scopedbothfilelint/format+server typecheckpass,1existingunusedlayerwarning/Effectsuggestions.
ActualClaudeCLI2.1.303 Sonnet5.5 disposabletaskflow: childseesparentroot, completesroot, createschild; parentTaskListseesboth. Childresultsplainstringsnostructuredoutput. No T3UI/native/remote rendering verified.
R1rejectedplainTaskUpdatefix: existingintegratedtestextends hookblockedresult withoutis_error. Beforeguard expected3planevents got4; afterguard286green. Only Updated task # successprefixacceptsstringupdates.
NoUIlayoutchange; screenshotwouldnotdemonstrateSDKnormalization.