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WordPress Performance Review

A severity-ranked code review skill that scans WordPress themes and plugins for performance anti-patterns.

Dev & CodingIntermediate22417AI score 9/10Last updated: Nov 29, 2025

What it does

Reviews WordPress PHP/JS code by file type and reports performance problems with line numbers and severity.

  • Critical: unbounded queries (posts_per_page => -1), query_posts(), frontend session_start() (kills full-page cache), N+1 queries in loops, JS setInterval polling (self-DDoS), long-running WP-Cron jobs
  • Warning: unindexed meta_query value scans, leading-wildcard LIKE '%term%', uncached wp_remote_get, dynamic transient keys bloating wp_options, globally enqueued assets
  • Info: missing no_found_rows, batch cache lookups, script versioning and defer strategy

It also ships quick-detection grep commands, hosting-aware guidance (managed vs. self-hosted vs. shared), a severity table, and a report template with a findings summary.

Who it's for

  • WordPress developers reviewing theme/plugin pull requests
  • Teams auditing a site before a launch, sale, or traffic spike
  • Operators tracking down 500 errors, timeouts, or memory exhaustion
  • Freelancers trimming queries and assets on WooCommerce-heavy sites

Example uses

  1. "Run a performance review on this plugin folder" → unbounded queries and cache-bypassing code listed by severity with line numbers
  2. "The cart page keeps timing out, find why" → checks templates for external HTTP calls, N+1 queries, and AJAX polling
  3. "Prep this site for Black Friday traffic" → flags transient misuse, oversized autoloaded options, and long cron callbacks

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/elvismdev/claude-wordpress-skills/HEAD/skills/wp-performance-review/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/wp-performance-review folder from the GitHub repo elvismdev/claude-wordpress-skills into my ~/.claude/skills/wp-performance-review/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/elvismdev/claude-wordpress-skills.git && mkdir -p ~/.claude/skills && cp -r claude-wordpress-skills/skills/wp-performance-review ~/.claude/skills/

This is a third-party skill. Check the source repository before installing.

  1. Open a terminal (Terminal on macOS, Git Bash or WSL on Windows).
  2. Clone the skills repo: git clone https://github.com/elvismdev/claude-wordpress-skills.git
  3. Create the skills directory if needed: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r claude-wordpress-skills/skills/wp-performance-review ~/.claude/skills/
  5. Confirm the references/ folder came along: ls ~/.claude/skills/wp-performance-review
  6. Restart Claude Code, open your WordPress project, and ask "review this theme for performance issues" to trigger the skill.