Round 20 Audit — April 2, 2026 — Elementor 4.0.0 STABLE

WordPress & Elementor Pro
Claude AI Skill

A modular prompt engineering framework that turns Claude into a Senior WordPress & Elementor developer — with strict security, modern APIs, and 20 live-source audit rounds behind it.

44
Files in skill
35
Widget boilerplates
20
Audit rounds
60+
Bugs fixed
STABLE

Elementor 4.0.0 released March 30, 2026 (free + Pro simultaneously). Atomic Editor is now the default for new installs. V3 Widget_Base remains fully supported — all skill code is production-safe on any site. Pro changelog → wordpress.org →

Why Use This Skill?

Generic AI models output outdated WordPress code, reach for deprecated jQuery, skip nonce verification, and miss HPOS requirements. This skill enforces strict modern SOPs — verified against official live sources every audit round.

Smart Context Routing

A SKILL.md router loads only the docs relevant to each task — widget boilerplate, REST rules, HPOS patterns — keeping responses fast and context lean.

Ironclad Security

Enforces wp_unslash() before every sanitizer, WP 6.8+ bcrypt/BLAKE2b hashing, nonce verification on every AJAX action, and WP_Error on REST permission failures.

Live-Source Verified

Every audit round fetches live data from official changelogs and APIs. Round 20 caught the Elementor 4.0.0 stable release on March 30 and updated every stale claim immediately.

What’s Inside

35 Widget Boilerplate Files

Elementor 4.0 ready

Every Elementor native widget type has a dedicated boilerplate — correct control IDs, selectors, render logic, content_template(), has_widget_inner_wrapper(): false, and is_dynamic_content() — all verified against Elementor's own source. Button, Image, Carousel, Accordion, Tabs, Video, Maps, Rating, and 27 more.

Mandatory: No Hardcoded Visuals

Golden Rule #6 and SKILL.md ยง5 enforce that every visual property (color, font, spacing, border, shadow, alignment) must be an Elementor control with selectors. A full controls checklist covers Typography, Background, Border, Box Shadow, Padding, Margin, Hover state, and more.

PHP & JS/CSS Mastery

Complete WP_Error handling, transient caching with 172-char key guard, ES6+ IIFE patterns, secure PHP-to-JS data passing via wp_add_inline_script(). Zero jQuery unless forced by WP core. No deprecated wp_localize_script() for data passing.

WooCommerce HPOS-Ready

Full HPOS compatibility declaration, HPOS-native order API (wc_get_order(), get_meta(), update_meta_data()), and WC 10.7 “sync on read” deprecation guidance with source code citation — ready before the April 14 release.

Accessibility & Performance Built In

WCAG 2.2 AA checklist, accessible off-canvas panels with inert and --hidden in HTML markup (not only JS), focus trap, iOS scroll lock. Full frontend checklist: LCP, Speculative Loading, WP 6.9+ IE conditional comment removal, WP 7.0+ wp_sync_storage exclusion.

Environment Targets

All code patterns validated against these versions. Verified from official live sources every audit round.

Component Version Notes
WordPress 6.9.4 WP 7.0 ships April 9, 2026 (RC2 released). PHP 7.2/7.3 dropped; new minimum PHP 7.4.
PHP 8.3+ Officially recommended. PHP 8.4 & 8.5 carry a “beta support” label.
Elementor (free) 4.0.0 STABLE Released March 30, 2026. Atomic Editor default for new installs. V3 Widget_Base fully supported.
Elementor Pro 4.0.0 STABLE Released March 30, 2026. Adds Atomic Forms, Pro Interactions, Component creation & detach.
WooCommerce 10.6.2 min: 8.2+ HPOS default-on since 8.2. WC 10.7 (April 14, 2026) disables “sync on read” — HPOS Order API required.

44-File Knowledge Base

9 core reference files + 35 widget boilerplates. Claude loads only what each task needs.

9 Core Reference Files

  • SKILL.mdRouter, 6 golden rules (incl. no hardcoded visuals), Elementor 4.0 status, widget map
  • scaffolding.mdPlugin scaffold, singleton, CPT + taxonomy, AJAX, child theme, widget reminder
  • php-standards.mdSanitize/escape, nonces, WP_Error, transients, bcrypt/BLAKE2b hashing
  • js-css-standards.mdES6+ IIFE, enqueue defer/async, BEM, design tokens, Elementor 4.0 selector rules
  • elementor-patterns.mdV4 stable rules, widgets, mandatory controls rule, Dynamic Tags, Loop Grid, Form actions
  • woocommerce.mdHPOS, order API, WC 10.7 migration with source code citation
  • rest-api.mdREST endpoints, JSON Schema draft-04, nonce auth + 24-hour refresh pattern
  • offcanvas-ui.mdOff-canvas: inert + --hidden in HTML, focus trap, scroll lock
  • performance.mdLCP, Speculative Loading, cache keys, wp_sync_storage, WCAG 2.2 AA

35 Widget Boilerplates

Verified against Elementor native widget source. Every file has has_widget_inner_wrapper(), is_dynamic_content(), content_template(), and correct Group Controls.

Button Container Image Heading Text Editor Video Elementor Template PHP Template Divider Spacer Icon Icon Box Image Box Image Gallery Image Carousel Icon List Counter Progress Bar Testimonial Tabs Accordion Toggle Social Icons Alert Audio Shortcode HTML Menu Anchor Sidebar Read More Google Maps Star Rating Rating (Schema) + 2 extended variants

20 Rounds of Audits

Every round verifies official live sources only. No blog posts, no third-party tutorials.

Rounds 1–13

Monolithic SKILL.md — 56 bugs fixed across all rounds.

Round 14

Split into 9-file core bundle + 35 widget boilerplates. Elementor 3.35.6 → 3.35.7.

Rounds 15–16

WordPress 6.9.4, WP 7.0 Beta 5, wp_kces_post typo fix, full verification pass.

Round 17

Fixed missing inert on off-canvas panel HTML. JSON Schema draft-04 comment. WP 7.0 Beta 6 / RC1 sync.

Round 18

Fixed backdrop overlay visible before JS load. WP AI API pre-stable caveat. WooCommerce filter source citation. Full 46-file scan.

Round 19

Live-source audit: Elementor 4.0 Beta status synced across 4 files. V3 Widget_Base confirmed fully supported.

Round 20 — Latest (April 2, 2026)

Elementor 4.0.0 shipped March 30, 2026 (free + Pro simultaneously). Updated version numbers from 3.35.9/3.35.1 โ†’ 4.0.0 across SKILL.md and elementor-patterns.md. Atomic Editor is now Stable and the default for new installs. V4 PHP extension API is Stable in 4.0 โ€” but third-party extension docs still being finalized; skill continues targeting V3 Widget_Base. WC 10.7 confirmed still upcoming (April 14). WP 7.0 on track for April 9. Full scan โ€” all other patterns clean. Sources: official changelogs + wordpress.org.

Official Sources Only

Every fact verified against the canonical source. Round 20 fetched live changelogs to confirm Elementor 4.0.0 release date.