TeXiFy-IDEA is an IntelliJ IDEA plugin that provides comprehensive LaTeX editing support. It enhances the IntelliJ Platform with features including syntax highlighting, code completion, inspections, refactoring intentions, build execution (supporting pdfLaTeX, XeLaTeX, LuaLaTeX, latexmk, biber), forward/inverse search with PDF viewers, bibliography management (local BibTeX and remote libraries like Zotero/Mendeley), and project structure visualization. The plugin follows IntelliJ Platform SDK conventions with a modular architecture organized around concerns like actions, editing, grammar, indexing, PSI, run configurations, settings, structure view, utilities, and remote library integration. It demonstrates strong software engineering practices through patterns like step-based execution systems, PDF viewer abstraction, magic comment parsing, Kotlin DSL builders for command definitions, and generic caching mechanisms. The plugin is actively maintained with recent commits, regular version updates, dependency management via Dependabot, and comprehensive testing.