Maniphest T413943

Callbacks: Create Z16K3 to indicate that a code block has callbacks
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	DMartin-WMF
	Jan 7 2026, 2:56 AM

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Description

Description

When the orchestrator is processing a function call, and using an evaluated implementation, it should know whether the implementation contains any reentrant calls, so it can set up a web socket for that purpose, and also pass the information along to the evaluator.

Two possible approaches (Not necessarily the only options):

Add an additional Z40/Boolean field to Z14 / Implementation
Add an additional Z40/Boolean field to Z16 / Code

Completion checklist

Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Back-end_Task/Bug_completion_checklist

Details

Related Changes in Gerrit:

	Subject	Repo	Branch	Lines +/-
	wikifunctions: Upgrade orchestrator from 2026-01-21-135031 to 2026-01-28-071101	operations/deployment-charts	master	+1 -1
	wikifunctions: Upgrade evaluators from 2026-01-15-194836 to 2026-01-27-063404	operations/deployment-charts	master	+2 -2
	Update function-schemata sub-module to HEAD (79a1bf3)	mediawiki/extensions/WikiLambda	master	+1 -1

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		Status	Subtype	Assigned	Task
		Open		None	T359566 Support re-entrancy
		In Progress		DMartin-WMF	T412952 Increase capabilities and usage of evaluated implementations to improve performance
		Open		None	T415474 WikiLambda: Support the use of Z16K3 / 'has callbacks to the orchestrator'
		Resolved		DMartin-WMF	T413943 Callbacks: Create Z16K3 to indicate that a code block has callbacks

Event Timeline

DMartin-WMF created this task.Jan 7 2026, 2:56 AM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 7 2026, 2:56 AM

DMartin-WMF triaged this task as Medium priority.Jan 7 2026, 2:58 AM

DMartin-WMF added a parent task: T412952: Increase capabilities and usage of evaluated implementations to improve performance.

DMartin-WMF moved this task from Incoming to Ready on the Abstract Wikipedia team (26Q3 (Jan–Mar)) board.

DMartin-WMF added a project: OKR-Work.

DMartin-WMF changed the task status from Open to In Progress.Jan 22 2026, 4:55 AM

DMartin-WMF claimed this task.

DMartin-WMF moved this task from Ready to In Engineering on the Abstract Wikipedia team (26Q3 (Jan–Mar)) board.

dmartin opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-schemata/-/merge_requests/315

definitions: Add new error type Z566 and new key Z16K3

Change #1230994 had a related patch set uploaded (by Jforrester; author: Jforrester):

[mediawiki/extensions/WikiLambda@master] Update function-schemata sub-module to HEAD (79a1bf3)

https://gerrit.wikimedia.org/r/1230994

Jdforrester-WMF mentioned this in rMSFEd1beaa653f76: Update function-schemata sub-module to HEAD (79a1bf3).Jan 23 2026, 7:24 PM

jforrester opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-orchestrator/-/merge_requests/525

Update function-schemata sub-module to HEAD (79a1bf3)

jforrester opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-evaluator/-/merge_requests/463

Update function-schemata sub-module to HEAD (79a1bf3)

jforrester opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/wikilambda-cli/-/merge_requests/101

Update function-schemata sub-module to HEAD (79a1bf3)

apine merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/wikilambda-cli/-/merge_requests/101

Update function-schemata sub-module to HEAD (79a1bf3)

apine merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-orchestrator/-/merge_requests/525

Update function-schemata sub-module to HEAD (79a1bf3)

Change #1230994 merged by jenkins-bot:

[mediawiki/extensions/WikiLambda@master] Update function-schemata sub-module to HEAD (79a1bf3)

https://gerrit.wikimedia.org/r/1230994

apine merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-evaluator/-/merge_requests/463

Update function-schemata sub-module to HEAD (79a1bf3)

cmassaro mentioned this in rMSFE473196affae2: Update function-schemata sub-module to HEAD (79a1bf3).Jan 24 2026, 12:22 AM

DMartin-WMF moved this task from In Engineering to Ready to deploy on the Abstract Wikipedia team (26Q3 (Jan–Mar)) board.Jan 24 2026, 12:33 AM

DMartin-WMF mentioned this in T415474: WikiLambda: Support the use of Z16K3 / 'has callbacks to the orchestrator'.Jan 26 2026, 1:47 AM

DMartin-WMF mentioned this in T321866: Support Evaluator-Orchestrator Callbacks in Wikifunctions Backend Components.Jan 26 2026, 2:27 AM

DMartin-WMF edited parent tasks, added: T321866: Support Evaluator-Orchestrator Callbacks in Wikifunctions Backend Components; removed: T412952: Increase capabilities and usage of evaluated implementations to improve performance.Jan 26 2026, 4:31 AM

DMartin-WMF renamed this task from Reentrancy: Provide a way to inform the orchestrator that an implementation is reentrant to Reentrancy: Create Z16K3 to indicate that a code block has callbacks.Jan 26 2026, 5:40 AM

DMartin-WMF edited parent tasks, added: T412952: Increase capabilities and usage of evaluated implementations to improve performance; removed: T321866: Support Evaluator-Orchestrator Callbacks in Wikifunctions Backend Components.

DMartin-WMF edited parent tasks, added: T415474: WikiLambda: Support the use of Z16K3 / 'has callbacks to the orchestrator'; removed: T412952: Increase capabilities and usage of evaluated implementations to improve performance.Jan 26 2026, 5:44 AM

DMartin-WMF renamed this task from Reentrancy: Create Z16K3 to indicate that a code block has callbacks to Callbacks: Create Z16K3 to indicate that a code block has callbacks.Jan 26 2026, 11:59 PM

Change #1234427 had a related patch set uploaded (by Jforrester; author: Jforrester):

[operations/deployment-charts@master] wikifunctions: Upgrade evaluators from 2026-01-15-194836 to 2026-01-27-063404

https://gerrit.wikimedia.org/r/1234427

Change #1234428 had a related patch set uploaded (by Jforrester; author: Jforrester):

[operations/deployment-charts@master] wikifunctions: Upgrade orchestrator from 2026-01-21-135031 to 2026-01-28-071101

https://gerrit.wikimedia.org/r/1234428

Change #1234427 merged by jenkins-bot:

[operations/deployment-charts@master] wikifunctions: Upgrade evaluators from 2026-01-15-194836 to 2026-01-27-063404

https://gerrit.wikimedia.org/r/1234427

Jdforrester-WMF moved this task from Ready to deploy to Needs Sign-off on the Abstract Wikipedia team (26Q3 (Jan–Mar)) board.Jan 28 2026, 3:05 PM

Change #1234428 merged by jenkins-bot:

[operations/deployment-charts@master] wikifunctions: Upgrade orchestrator from 2026-01-21-135031 to 2026-01-28-071101

https://gerrit.wikimedia.org/r/1234428

cmassaro merged a task: T321858: Pass doValidate and useReentrance at the Per-Request Level.Jan 29 2026, 1:55 PM

cmassaro mentioned this in T321858: Pass doValidate and useReentrance at the Per-Request Level.

cmassaro subscribed.

Jdforrester-WMF closed this task as Resolved.Feb 9 2026, 12:48 PM