[wp-trac] [WordPress Trac] #64483: Core Abilities getting error when execution

WordPress Trac noreply at wordpress.org
Mon Jan 19 22:55:12 UTC 2026


#64483: Core Abilities getting error when execution
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 Reporter:  arkenon                              |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  Awaiting
                                                 |  Review
Component:  AI                                   |     Version:  6.9
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch needs-testing needs-unit-  |     Focuses:
  tests                                          |
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Comment (by jason_the_adams):

 Hi @hbhalodia!

 One of the PHP/WP AI Client maintainers here. 👋

 I agree with @justlevine. This looks like an issue in the client, not
 something wrong with the Abilities API itself.

 I dug into this enough to determine that it's a bug happening in the PHP
 AI Client in how we convert the model payload into a `Message`, in
 particular how the arguments are turned into a `FunctionCall`. It's likely
 misinterpreting an empty JSON object as an empty array, not realizing it
 should be `null`.

 Can you please tell me which provider you're testing with?

 Thank you!

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Ticket URL: <https://core.trac.wordpress.org/ticket/64483#comment:14>
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