vscode-extension-development

Develop, debug, and publish Visual Studio Code extensions using the Extension API and Language Server Protocol.

6|1|Updated Feb 27, 2026
One-click install
npx skills add https://github.com/RepairYourTech/cfsa-antigravity --skill vscode-extension-development
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: vscode-extension-development
Source: https://github.com/RepairYourTech/cfsa-antigravity/tree/main/.agent/skill-library/surface/extension/vscode-extension-development
Command: npx skills add https://github.com/RepairYourTech/cfsa-antigravity --skill vscode-extension-development

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a comprehensive guide to developing, debugging, and publishing extensions for Visual Studio Code, enabling users to enhance the IDE's functionality.

Core Features & Use Cases

  • Extension API: Learn to leverage VS Code's rich APIs for commands, UI elements, and language features.
  • LSP Integration: Implement Language Server Protocol for advanced code intelligence.
  • Webview Development: Create custom UI panels and editors within VS Code.
  • Publishing: Package and distribute your extensions to the Visual Studio Marketplace.
  • Use Case: Develop a VS Code extension that adds custom code snippets and linting rules for a specific programming language.

Quick Start

Use the vscode-extension-development skill to create a basic VS Code extension that registers a new command.

Frequently Asked Questions about vscode-extension-development

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

FAQPage Schema
How do I build and publish a VS Code extension from scratch?

VS Code extension development involves using the Extension API to register commands and UI elements, configuring activation events, debugging the code, and packaging the final output for publishing to the Visual Studio Marketplace.

How does the Language Server Protocol (LSP) work in VS Code extensions?

The Language Server Protocol (LSP) in VS Code extensions works by separating language intelligence into a dedicated server, enabling advanced code features like linting and autocomplete without embedding the logic directly into the extension client.

Can I use TypeScript to create custom Webview panels in VS Code?

Yes, TypeScript is used to create custom Webview panels in VS Code, allowing you to build custom UI editors and interactive visual elements within the IDE using standard web technologies.

What are activation events and when do I need them for VS Code extension development?

Activation events are specific triggers that load your VS Code extension only when needed, such as opening a specific file type or running a command, optimizing IDE performance by preventing unnecessary background processing.

Do I need to implement language support separately when developing VS Code extensions?

You need to implement language support separately if your extension requires advanced code intelligence, which is typically achieved by integrating the Language Server Protocol (LSP) rather than relying solely on basic Extension API snippets.

What is the best way to debug a VS Code extension during development?

The best way to debug a VS Code extension during development is to use the built-in debugging tools provided by the Extension API, allowing you to test commands, TreeViews, and Webviews within a dedicated Extension Development Host instance.