Описание тега intellij-plugin
Plugin Development for IntelliJ-based IDEs
The IntelliJ Platform SDK is an OSS platform developed by JetBrains for creating language-aware developer tools, plugins, and custom IDEs.
The API provides support for custom languages and frameworks, including syntax highlighting, navigation, code completion, inspections, intentions, refactorings, a debugger, test runners, tool windows, actions, and more, as well as general lexers and parsers.