lsp-implementation

Implement Language Server Protocol features for the Lea language server.

4|Updated Dec 8, 2025

Search Tags:#diagnostics #lsp #definition #hover #completions

Ready to run

npx skills add https://github.com/mcclowes/lea --skill lsp-implementation

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: lsp-implementation
Source: https://github.com/mcclowes/lea/tree/main/.claude/skills/lsp-implementation
Command: npx skills add https://github.com/mcclowes/lea --skill lsp-implementation

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Providing LSP capabilities for Lea language support, including completions, hover, diagnostics, and navigation.

Core Features & Use Cases

Completions: Context-aware suggestions
Hover: Rich inline documentation for builtins
Diagnostics: Real-time syntax and type checks

Quick Start

Add a basic LSP server skeleton and connect a client.

Frequently Asked Questions about lsp-implementation

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I add Language Server Protocol features to a language server?▼

Language Server Protocol (LSP) is a standardized way to implement IDE features like completions, hover information, and diagnostics. You configure server capabilities (textDocumentSync, completionProvider, hoverProvider, definitionProvider) and register handlers (onInitialize, onCompletion, onHover, onDidChangeContent, onDefinition) using the vscode-languageserver APIs in a TypeScript/Node.js environment.

Can I implement LSP completions and hover in TypeScript?▼

Yes. The vscode-languageserver library provides TypeScript support for implementing LSP handlers. You define onCompletion and onHover handlers to deliver context-aware suggestions and inline documentation, then connect them to a client that sends textDocument requests.

What environment do I need to set up an LSP server?▼

An LSP server requires a TypeScript/Node.js environment with the vscode-languageserver package. You'll also need a client connection (typically via stdio or TCP) and handlers for core LSP requests like onInitialize and onDidChangeContent for real-time diagnostics.

How do I report syntax and type errors in an LSP server?▼

Diagnostics reporting in LSP involves hooking the onDidChangeContent handler to analyze document changes, then publishing diagnostics back to the client. The vscode-languageserver APIs let you send diagnostic messages for syntax and type violations as the user edits.

Does LSP support definition navigation and cross-file references?▼

Yes. LSP includes definitionProvider and referencesProvider capabilities. You implement onDefinition handlers to resolve symbol locations and use the references component to find all usages, enabling IDE "go to definition" and "find references" features.

What's the quickest way to start with LSP server development?▼

Begin with a basic LSP server skeleton using vscode-languageserver, connect a client, and incrementally add handlers: start with onInitialize and textDocumentSync, then layer in onCompletion, onHover, and onDefinition for richer IDE integration.