Language Server Protocol Skill

The Language Server Protocol (LSP) is an open standard that defines the protocol used between an editor or IDE and a language server that provides language features like auto-complete, go to definition, find all references, and more. Think of LSP as "USB-C for code intelligence" - a standardized interface that allows any language server to work with any compatible editor.

Core Value Proposition: Build once, integrate everywhere. A single language server implementation works across VS Code, Neovim, Emacs, Sublime Text, and dozens of other editors without modification.

When to Use This Skill

This skill should be triggered when:

• Building language servers for programming languages or DSLs
• Implementing LSP client support in editors or IDEs
• Understanding LSP protocol architecture and message flow
• Adding code intelligence features (completion, diagnostics, navigation)
• Debugging LSP communication issues
• Integrating existing language servers into tools
• Extending language server capabilities

Protocol Overview