[wp-trac] [WordPress Trac] #64955: Add schema compiler for AI tool calling compatibility

[WordPress Trac]

#64955: Add schema compiler for AI tool calling compatibility
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 Reporter:  gziolo                    |       Owner:  gziolo
     Type:  enhancement               |      Status:  assigned
 Priority:  normal                    |   Milestone:  7.1
Component:  Abilities API             |     Version:  6.9
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  rest-api
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Comment (by gziolo):

 The preparatory work is complete. Ability input and output schemas sent
 through the REST API are now aligned with how they're validated on the
 client in the `@wordpress/abilities` package: the `required` keyword is
 normalized to the standard draft-04 array form, and only the properties
 recognized by the REST API's own validation are returned from the server
 (WordPress-internal keys and unsupported keywords are stripped). This
 keeps the published schema consistent with what the server enforces and
 ensures it also passes the stricter validation applied on the client.
 Behavior is now covered by an additional set of unit tests on both the
 server and the client.

 With this in place, we're in a good position to address the feedback
 raised by @jorgefilipecosta in https://github.com/WordPress/wordpress-
 develop/pull/12013#discussion_r3335149882 and start generalizing the
 schema handling so it's applied during ability registration as outlined in
 the ticket. Handling it universally means it would work seamlessly with
 the WP AI Client and the MCP adapter.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64955#comment:23>
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