IntelliJ Platform
Plugins
What if one part of your plugin should load only when a specific IDE functionality is available? Plugin Model v2 is now available as an experimental way to structure, package, and build plugins, and to support such scenarios in a future-proof way. Its primary use case is in Split Mode (Remote Development) plugins.
In this post, let’s create a plugin that moves the CSS PSI-related functionality into an optional plugin content module.
The IDE includes a bundled plugin content module that provides CSS support, and our optional plugin content module depends on it. In IntelliJ IDEA 2026.1, where CSS PSI became available for free, without a subscription, this content module will be automatically available. In IntelliJ IDEA 2025.3, it is loaded only when the user has a subscription.
