This plugin creates a custom taxonomy to act as a high-performance alternative to querying posts by their meta data. It is designed for developers and site administrators who need to filter or find posts based on specific criteria but are hindered by the slow performance of standard meta queries. By moving key flags or values into a taxonomy structure, queries that were previously inefficient become fast and scalable.

• Taxonomy-Based Queries: Uses the built-in term relationship tables, which are indexed for speed, making post lookups significantly faster than equivalent meta queries.
• Simple Assignment: Works like any other taxonomy; you assign terms to posts to represent meta states or values, enabling quick filtering in the admin and front-end.
• Customizable Registration: Offers filters to change the taxonomy name, labels, capabilities, and which post types it supports, allowing integration into various site structures.
• Helper Functions: Includes a has_meta_term() function to easily check if a specific post has been assigned a given meta taxonomy term.
• Admin UI Integration: The taxonomy appears in the standard post editing interface, making it straightforward to manage terms without custom code for basic use cases.