wordpress-performance-best-practices

Comprehensive performance optimization guide for WordPress development, designed for AI agents and LLMs. Contains 34 rules across 8 categories, prioritized by impact to guide code review and generation. Reference these guidelines when: Read individual rule files for detailed explanations and code examples: Each rule file contains: For the complete guide with all rules expanded: AGENTS.md - Writing WordPress plugins or themes - Working with WP_Query or database operations - Implementing caching (transients, object cache) - Optimizing asset loading (scripts, styles) - Reviewing WordPress code for performance issues - Working with REST API or AJAX handlers - db-prepared-statements - Always use $wpdb->prepare() for queries - db-avoid-post-not-in - Avoid post__not_in, filter in PHP instead - db-use-wp-query - Use WP_Query/get_posts instead of direct DB queries - db-limit-query-results - Never use posts_per_page => -1 - db-meta-query-indexing - Optimize meta queries, consider taxonomies - db-fields-optimization - Use fields => 'ids' when only IDs needed - cache-transients-proper-use - Use transients for external API calls - cache-object-cache - Use wp_cache_* with cache groups - cache-remote-requests - Always cache wp_remote_get responses - cache-invalidation - Implement precise, event-driven invalidation - cache-fragment-caching - Cache expensive template fragments -...