# mmo.client — overview for AI code generation
`mmo.client` is Marc Mouret's client-side Web Component library (PHP package `mmo.client`, PHP namespace
`MMO\client`, JS namespace `MMO.elements.*` / `MMO.core.*`). It defines Web Components and templates from a
single custom file format, **`.jhs`** ("JavaScript, HTML, Style"): one file holds the markup, the element's JS
class, and its styles. A `