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Language Server Protocol

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

QUICK START

How to use this skill

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  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
Prompt to paste
I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/a5c-ai/babysitter/blob/HEAD/library/specializations/programming-languages/skills/lsp-protocol/SKILL.md

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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" }
    }
  }
}