JetBrains Brings IntelliJ IDEA Intelligence to VS Code and Cursor via LSP Preview
Key Takeaways
- ▸JetBrains makes IntelliJ IDEA's Java and Kotlin intelligence available as a free LSP extension for VS Code, Cursor, and other editors during preview
- ▸The extension is optimized for agentic workflows, with internal trials showing improved performance and reduced token consumption compared to existing solutions
- ▸Feature set includes smart completion, navigation, refactoring, code analysis, and support for major build systems
Summary
JetBrains announced a public preview of its Java & Kotlin by IntelliJ IDEA extension, bringing the company's sophisticated language intelligence to VS Code, Cursor, and other LSP-capable editors. The extension includes smart code completion, navigation, refactoring, and code analysis features, with support for Maven, Gradle, and Bazel build systems.
Designed with agentic workflows in mind, JetBrains reports that internal trials show the LSP implementation significantly improves performance in terminal-based AI agent workflows like Claude Code, with reduced token consumption. The extension is free during its preview phase with biweekly builds and 30-day evaluation periods, and will require an IntelliJ IDEA Ultimate subscription after general availability.
- Post-preview availability will require IntelliJ IDEA Ultimate subscription, though the same license works across desktop IDE and LSP-based environments
Editorial Opinion
JetBrains' embrace of LSP is a pragmatic acknowledgment that the IDE landscape has fragmented and that agentic development is reshaping how code gets written. By bringing IntelliJ's sophisticated language analysis to VS Code and Cursor, they're positioning themselves as essential infrastructure for AI-assisted development workflows. However, the eventual paywall creates an interesting tension—free tools and open-source alternatives may capture mind-share during the preview period, making conversion to paid tiers challenging.
