Language Server Protocol

Language Server Protocol Skill

Overview

Expert skill for implementing Language Server Protocol servers with full IDE feature support.

Capabilities

• Implement JSON-RPC transport layer
• Handle document synchronization (full and incremental)
• Implement semantic tokens for syntax highlighting
• Implement completion with resolve
• Implement hover information with type signatures
• Implement go-to-definition/references/implementations
• Implement document symbols and workspace symbols
• Implement rename with cross-file support
• Implement code actions and quick fixes
• Implement signature help

Target Processes

• lsp-server-implementation.js
• debugger-adapter-development.js
• error-message-enhancement.js
• semantic-analysis.js

Dependencies

• LSP specification
• vscode-languageserver libraries
• tower-lsp (Rust)

Usage Guidelines

1. Transport: Start with stdio transport, add TCP/websocket as needed
2. Incremental Sync: Implement incremental document sync for performance
3. Caching: Cache analysis results and invalidate on document changes
4. Error Tolerance: Handle malformed documents gracefully
5. Progress: Report progress for long-running operations

Output Schema

{
  "type": "object",
  "properties": {
    "capabilities": {
      "type": "array",
      "items": { "type": "string" }
    },
    "transportType": {
      "type": "string",
      "enum": ["stdio", "tcp", "websocket"]
    },
    "documentSync": {
      "type": "string",
      "enum": ["full", "incremental"]
    },
    "generatedFiles": {
      "type": "array",
      "items": { "type": "string" }
    }
  }
}