WordPress Performance Best Practices

Created by WOW - Wielka Optymalizacja WordPressa, Bartek Miś

A comprehensive performance optimization guide for WordPress development, designed for AI agents and LLMs assisting developers.

How to Use

Install the skill in Claude Code:

npx add-skill bartekmis/wordpress-performance-best-practises

Once installed, Claude will automatically apply these performance guidelines when working with WordPress code.

Overview

This project provides a curated set of performance rules for WordPress development based on:

• WordPress VIP Coding Standards
• WordPress Coding Standards
• 10up Engineering Best Practices
• Official WordPress Developer Documentation

For AI Agents

If you're an AI agent or LLM, use the compiled AGENTS.md file which contains all rules in a single, optimized format.

Structure

wordpress-performance-best-practices/
├── AGENTS.md              # Compiled output for AI agents
├── SKILL.md               # Skill definition for agent integration
├── README.md              # This file
├── metadata.json          # Project metadata
├── rules/                 # Individual rule files
│   ├── _sections.md       # Section definitions
│   ├── _template.md       # Template for new rules
│   ├── db-*.md           # Database optimization rules
│   ├── cache-*.md        # Caching strategy rules
│   ├── asset-*.md        # Asset management rules
│   ├── theme-*.md        # Theme performance rules
│   ├── plugin-*.md       # Plugin architecture rules
│   ├── media-*.md        # Media optimization rules
│   ├── api-*.md          # API and AJAX rules
│   └── advanced-*.md     # Advanced pattern rules
└── build/                 # Build tools
    ├── src/               # TypeScript source
    └── package.json       # Build dependencies

Sections

#	Section	Prefix	Impact	Description
1	Database Optimization	db-	CRITICAL	Query optimization, prepared statements, indexing
2	Caching Strategies	cache-	CRITICAL	Object cache, transients, page caching
3	Asset Management	asset-	HIGH	Script/style loading, defer/async
4	Theme Performance	theme-	HIGH	Template optimization, loop performance
5	Plugin Architecture	plugin-	MEDIUM-HIGH	Conditional loading, hooks, autoloading
6	Media Optimization	media-	MEDIUM	Image handling, lazy loading
7	API and AJAX	api-	MEDIUM	REST API, admin-ajax optimization
8	Advanced Patterns	advanced-	LOW-MEDIUM	Autoload, cron, memory management

Usage

For Developers

Browse individual rule files in the rules/ directory for detailed explanations and examples.

For AI Agents

1. Include AGENTS.md in your context
2. Or use SKILL.md for agent framework integration

Building

cd build
npm install
npm run build

This compiles all rules into AGENTS.md.

Contributing

1. Create a new rule file in rules/ using _template.md as a guide
2. Use the appropriate prefix for your section (e.g., db- for database rules)
3. Include both incorrect and correct code examples
4. Run the build to regenerate AGENTS.md
5. Submit a pull request

Rule Format

Each rule follows this structure:

---
title: Rule Title
impact: CRITICAL | HIGH | MEDIUM-HIGH | MEDIUM | LOW-MEDIUM | LOW
impactDescription: Optional quantified improvement
tags: comma, separated, tags
---

## Rule Title

Explanation of the rule.

**Incorrect (description):**
\`\`\`php
// Bad code
\`\`\`

**Correct (description):**
\`\`\`php
// Good code
\`\`\`

Reference: [Link](url)

License

MIT License - Feel free to use this in your projects and AI agents.

References

• WordPress Developer Resources
• WordPress VIP Documentation
• WordPress Coding Standards
• VIP Coding Standards