WordPress development is entering a new era with Agent Skills — version-controlled, filesystem-based knowledge packages that give AI coding assistants expert-level WordPress context. Combined with WordPress Playground (a full WP stack running in WebAssembly in ~10 seconds) and the new Abilities API shipping in WordPress 6.9, AI agents can now write, deploy, test, and autonomously fix WordPress code in a live sandbox before it ever touches production. The article covers the full skill catalog (block development, plugin architecture, REST API, performance, FSE themes, etc.), explains the recursive test-and-repair loop, details the Abilities API's capability-gated security model, and warns about real threat vectors including supply chain attacks (26.1% of analyzed skills contained vulnerabilities), prompt injection, and credential exposure.
