Vibe Index is a real-time directory that collects and ranks every tool in the Claude Code ecosystem: skills, plugins, MCP servers, and marketplaces. Data syncs with GitHub hourly, dead links are automatically cleaned up, and security scans detect malicious code and prompt injection. Each resource includes an AI-written summary to help you evaluate it quickly.

A skill is a SKILL.md file that contains coding rules for a specific framework or tool. Place it in your project and Claude Code reads it automatically, then follows those rules when writing code. For example, install a Next.js skill and Claude Code generates code that follows Next.js conventions. You can install multiple skills and Claude Code follows all of them.

The quickest way is the CLI: npx vibeindex add <owner/repo>. This downloads the SKILL.md into your project automatically. For manual installation, copy the SKILL.md content and save it to .claude/skills/<skill-name>/SKILL.md. Either way, Claude Code recognizes it from the next session onward.

MCP (Model Context Protocol) is an open standard that lets Claude Code communicate with external services. Without MCP, it only works with files in your project. With an MCP server, Claude Code can query a PostgreSQL database, browse the web, read GitHub issues, call REST APIs, and more. Each MCP server connects it to one specific service.

In Claude Code, run: claude mcp add <server-name>. For Claude Desktop, add the server config to your claude_desktop_config.json. Each MCP server page on Vibe Index provides the exact command or JSON configuration needed, ready to copy and paste.

Skills work in the background: Claude Code reads them automatically and applies the knowledge when relevant. Plugins are commands you trigger yourself with a slash command like /commit or /review-pr. In short, skills are always-on knowledge; plugins are on-demand actions.

All resources listed here are open-source with code publicly available on GitHub, so you can review the source before installing. We also run automated security scans powered by Cisco that check for prompt injection, malicious code, and data exfiltration across 17 threat categories. Scan results are shown on each resource's detail page.

Resources are ranked by popularity within each category: skills by install count, MCP servers, plugins, and marketplaces by GitHub stars. Scores are normalized across categories so they can be compared fairly in a single unified ranking. Rankings update daily.

Yes. Click "Submit Resource" in the top menu, sign in with GitHub, and enter your repository URL. After review, your tool will be added to the directory and start appearing in the rankings.

Vibe Index was built alongside the book “Vibe Coding with Claude Code” (Hanbit Media) to help readers put what they learn into practice. The book covers prompt fundamentals, Claude Code setup and usage, AI sub-agents, MCP servers, and deployment. Visit the About page to learn more about the project.