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Maniphest T425603

Error: Unknown task type revise-tone
Open, Stalled, Needs TriagePublicPRODUCTION ERROR
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Description

Error
message
Error: Unknown task type revise-tone
trace
at new TaskExplanationWidget  https://en.wikipedia.org/w/load.php?lang=en&modules=%40wikimedia%2Fcodex%2Ccodex-styles%2Cjquery%2Coojs-ui-core%2Cvue%7Cext.growthExperiments.Homepage.Impact%2CSuggestedEdits&skin=vector-2022&version=119b6:422:554
at SuggestedEditsModule.updateTaskExplanationWidget  https://en.wikipedia.org/w/load.php?lang=en&modules=%40wikimedia%2Fcodex%2Ccodex-styles%2Cjquery%2Coojs-ui-core%2Cvue%7Cext.growthExperiments.Homepage.Impact%2CSuggestedEdits&skin=vector-2022&version=119b6:405:742
at SuggestedEditsModule.updateControls  https://en.wikipedia.org/w/load.php?lang=en&modules=%40wikimedia%2Fcodex%2Ccodex-styles%2Cjquery%2Coojs-ui-core%2Cvue%7Cext.growthExperiments.Homepage.Impact%2CSuggestedEdits&skin=vector-2022&version=119b6:410:783
at SuggestedEditsModule.onNewcomerTasksDataChanged  https://en.wikipedia.org/w/load.php?lang=en&modules=%40wikimedia%2Fcodex%2Ccodex-styles%2Cjquery%2Coojs-ui-core%2Cvue%7Cext.growthExperiments.Homepage.Impact%2CSuggestedEdits&skin=vector-2022&version=119b6:406:52
at OO.EventEmitter.emit  https://en.wikipedia.org/w/load.php?lang=en&modules=oojs&skin=vector-2022&version=rwdvu:8:193
at NewcomerTasksStore.onTaskQueueChanged  https://en.wikipedia.org/w/load.php?lang=en&modules=ext.growthExperiments.DataStore&skin=vector-2022&version=84hq6:10:390
at NewcomerTasksStore.setPreloadedTaskQueue  https://en.wikipedia.org/w/load.php?lang=en&modules=ext.growthExperiments.DataStore&skin=vector-2022&version=84hq6:9:974
at initSuggestedTasks  https://en.wikipedia.org/w/load.php?lang=en&modules=%40wikimedia%2Fcodex%2Ccodex-styles%2Cjquery%2Coojs-ui-core%2Cvue%7Cext.growthExperiments.Homepage.Impact%2CSuggestedEdits&skin=vector-2022&version=119b6:395:339
at https://en.wikipedia.org/w/load.php?lang=en&modules=%40wikimedia%2Fcodex%2Ccodex-styles%2Cjquery%2Coojs-ui-core%2Cvue%7Cext.growthExperiments.Homepage.Impact%2CSuggestedEdits&skin=vector-2022&version=119b6:396:839
at index.js  https://en.wikipedia.org/w/load.php?lang=en&modules=%40wikimedia%2Fcodex%2Ccodex-styles%2Cjquery%2Coojs-ui-core%2Cvue%7Cext.growthExperiments.Homepage.Impact%2CSuggestedEdits&skin=vector-2022&version=119b6:397:70
Impact
Notes
  • I checked a test user with Revise tone task type enabled - all works as expected

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Event Timeline

Etonkovidova created this task.May 6 2026, 11:33 PM
Restricted Application added a project: Growth-Team. · View Herald TranscriptMay 6 2026, 11:33 PM
Restricted Application added a subscriber: Aklapper. · View Herald Transcript
Sgs added a comment.May 11 2026, 10:53 AM

This seems to be happening since the beginning of the experiment, which started on March 31 and the relevant code hit enwiki on April 2nd (see last 90 days). This happens if for some yet unknown reason GrowthExperiments considers the user to be in the treatment group in FeatureManager.php#63 and to be in the control group or unenrolled in TaskTypesAbFilter.js#87. Given these are very few hits across ~300K subjects in the experiment from an analysis pov it doesn't seem relevant. The bad think is that users are getting a broken task card which fails to load the image and description and won't trigger a revise tone task flow.

Maybe some better error handling and fallback to some available task and maybe stop analytics logs for this users? Otoh, given this is a logged-in only experiment, I don't see a fair reason to fail on returning the same group for the same user, so maybe this should be investigated forward in Test Kitchen. What do you think @Michael ?

Sgs moved this task from Inbox to Needs Discussion on the Growth-Team board.May 11 2026, 10:54 AM
• thcipriani moved this task from Untriaged to Apr–Jun 2026 on the Wikimedia-production-error board.May 14 2026, 3:38 PM
Michael added a comment.Jun 2 2026, 1:10 PM
In T425603#11907005, @Sgs wrote:

This seems to be happening since the beginning of the experiment, which started on March 31 and the relevant code hit enwiki on April 2nd (see last 90 days). This happens if for some yet unknown reason GrowthExperiments considers the user to be in the treatment group in FeatureManager.php#63 and to be in the control group or unenrolled in TaskTypesAbFilter.js#87. Given these are very few hits across ~300K subjects in the experiment from an analysis pov it doesn't seem relevant. The bad think is that users are getting a broken task card which fails to load the image and description and won't trigger a revise tone task flow.

Maybe some better error handling and fallback to some available task and maybe stop analytics logs for this users? Otoh, given this is a logged-in only experiment, I don't see a fair reason to fail on returning the same group for the same user, so maybe this should be investigated forward in Test Kitchen. What do you think @Michael ?

My hope would be that we can resolve this particular issue as we properly scale the Revise Tone task to users in the supported wikis: T426363: Revise Tone Structured Task: end experiment on Pilot wikis.

Michael changed the task status from Open to Stalled.Jun 15 2026, 9:47 AM
Michael added a subtask: T426363: Revise Tone Structured Task: end experiment on Pilot wikis.
Michael moved this task from Needs Discussion to Blocked on the Growth-Team board.

Let's revisit this once T426363: Revise Tone Structured Task: end experiment on Pilot wikis is done to see if this error still happens.

Michael changed the status of subtask T426363: Revise Tone Structured Task: end experiment on Pilot wikis from Open to Stalled.Jul 3 2026, 1:56 PM
KStoller-WMF changed the status of subtask T426363: Revise Tone Structured Task: end experiment on Pilot wikis from Stalled to In Progress.Thu, Jul 9, 3:38 PM
Etonkovidova closed subtask T426363: Revise Tone Structured Task: end experiment on Pilot wikis as Resolved.Thu, Jul 23, 8:46 PM
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