Wp Abilities Api

If you're working with WordPress 6.9+ and need to register abilities, expose them via REST, or consume them in JavaScript using @wordpress/abilities, this skill walks you through the whole flow. It covers PHP registration with wp_register_ability, REST endpoint verification under wp-abilities/v1, and client-side consumption. The debug section is genuinely helpful because "ability doesn't show up" usually means you missed show_in_rest in meta or hooked registration at the wrong time. It assumes you're comfortable with filesystem agents, WP-CLI, and can run wp-project-triage first. Honestly, it's narrow but thorough, exactly what you want when adopting a newer core API.

skills.sh installs: 300
GitHub stars: 211
last updated: Jun 3, 2026

View on GitHub

Install

$ npx -y skills add automattic/agent-skills --skill wp-abilities-api --agent claude-code

Installs into .claude/skills of the current project.

Files

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 (wp-abilities/v1),
consuming abilities in JS (notably @wordpress/abilities),
diagnosing “ability doesn’t show up” / “client can’t see ability” / “REST returns empty”.

Inputs required

Repo root (run wp-project-triage 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

1) Confirm availability and version constraints

If this is WP core work, check signals.isWpCoreCheckout and versions.wordpress.core.
If the project targets WP < 6.9, you may need the Abilities API plugin/package rather than relying on core.