WP Abilities API When to use Use this skill when the task involves: - registering abilities or ability categories in PHP, - exposing abilities to clients via REST ( ), - consuming abilities in JS (notably ), - diagnosing “ability doesn’t show up” / “client can’t see ability” / “REST returns empty”. Inputs required - Repo root (run first if you haven’t). - Target WordPress version(s) and whether this is WP core or a plugin/theme. - Where the change should live (plugin vs theme vs mu-plugin). Procedure Before deciding what to register, read — abilities live at the domain capability layer; MCP /…