Supercharging Claude Code: Plugins, MCP Servers & Skills

Agentic AI
Developer Tools
Claude Code
Author

Suraj Jaiswal

Published

May 6, 2026

Supercharging Claude Code: Plugins, MCP Servers & Skills

Claude Code is Anthropic’s official CLI for interacting with Claude directly in your terminal. Out of the box it’s powerful — but the real magic comes from extending it with plugins, MCP servers, and skills. This post walks through exactly what I set up and how to replicate it on any machine.

What’s the difference?

Type What it is How to use
Plugin Bundles skills + agents + hooks into one installable package /plugin install <name>@claude-plugins-official
MCP Server External tool Claude can call (browser, Drive, DB, APIs) claude mcp add <name> -- <command>
Skill A slash command that loads specific workflow instructions /skill-name in the prompt
Agent A specialized sub-agent Claude can spawn for a task @agent-name in the prompt

Prerequisites

# Install Claude Code
npm install -g @anthropic-ai/claude-code

# Verify
claude --version

1. Install Node.js (required for MCP servers)

Most MCP servers run via npx. Check first:

which node && node --version

If not found, install via Homebrew (macOS):

brew install node

2. Add Context7 MCP — Live Library Docs

Context7 by Upstash fetches up-to-date documentation for any library on demand. Instead of Claude guessing from training data, it pulls current docs.

claude mcp add context7 -- npx -y @upstash/context7-mcp

Verify it’s connected:

claude mcp list

Usage: Just mention the library in your prompt:

how do I use useQuery in TanStack Query v5? use context7

3. Install ralph-loop Plugin — Autonomous Dev Loops

ralph-loop implements the Ralph Wiggum technique — an iterative loop where Claude keeps working on a task until it’s done or hits a max iteration limit. Great for “fix all failing tests” type tasks.

Inside Claude Code:

/plugin install ralph-loop@claude-plugins-official
/reload-plugins

Usage:

/ralph-loop "fix all failing tests" --max-iterations 10 --completion-promise "ALL TESTS PASS"
/cancel-ralph   ← to stop the loop early

ralph-loop vs /loop skill:

/loop /ralph-loop
Trigger Time-based (every N minutes) Completion-based
Stops when You cancel it Promise met or max iterations hit
Context Fresh each run Preserves file changes + git history
Best for Polling / monitoring Autonomous task completion

4. Install agent-browser — Browser Automation

agent-browser by Vercel Labs is a native Rust CLI for browser automation. It lets Claude navigate websites, fill forms, click buttons, extract data, and take screenshots — all from the terminal.

# Step 1: Install CLI
npm install -g agent-browser

# Step 2: Download Chrome for Testing
agent-browser install

# Step 3: Register as Claude Code skill (run inside Claude Code)
npx skills add https://github.com/vercel-labs/agent-browser --skill agent-browser -y

Usage — just describe the task naturally:

open linkedin.com and search for AI Engineer jobs in India
take a screenshot of the results
find salary data for Amazon ML Engineer roles in Canada

Note: The skill installs at the project level by default. For global access across all projects, add the -g flag:

npx skills add https://github.com/vercel-labs/agent-browser --skill agent-browser -y -g

5. Install superpowers Plugin — Dev Workflow Skills

The superpowers plugin adds a full suite of structured development workflow skills:

/plugin install superpowers@claude-plugins-official
/reload-plugins

Skills included:

Skill When to use
/brainstorming Before any feature work — explores intent first
/writing-plans Plan multi-step implementation before touching code
/executing-plans Execute a written plan with review checkpoints
/systematic-debugging Structured bug fixing workflow
/test-driven-development TDD before writing implementation code
/dispatching-parallel-agents Run 2+ independent tasks in parallel
/verification-before-completion Verify before claiming anything is “done”
/finishing-a-development-branch Guided merge/PR/cleanup after implementation
/using-git-worktrees Isolated feature branches with safety checks

6. Install feature-dev Plugin — Feature Development Agents

/plugin install feature-dev@claude-plugins-official
/reload-plugins

Adds 3 specialized agents:

Agent What it does
@code-architect Designs architecture and implementation blueprints
@code-explorer Deep-dives into existing codebase to map patterns
@code-reviewer Reviews for bugs, security, and code quality

Usage:

@code-architect design a FastAPI authentication system with JWT
@code-explorer how does the data pipeline work in this repo?
@code-reviewer check my last commit for issues

7. Install code-simplifier Plugin

/plugin install code-simplifier@claude-plugins-official
/reload-plugins

Adds @code-simplifier agent — reviews recently changed code for reuse, quality, and efficiency, then fixes issues found.

Checking what’s installed

Inside Claude Code, run /context to see everything loaded:

/context     ← shows MCP tools, skills, agents, memory, token usage
/mcp         ← manage MCP server connections
/skills      ← browse available skills
/agents      ← browse available agents
/plugin list ← list installed plugins

Full setup checklist

# Terminal (outside Claude Code)
brew install node
npm install -g agent-browser
agent-browser install
claude mcp add context7 -- npx -y @upstash/context7-mcp

# Inside Claude Code prompt
/plugin install ralph-loop@claude-plugins-official
/plugin install superpowers@claude-plugins-official
/plugin install feature-dev@claude-plugins-official
/plugin install code-simplifier@claude-plugins-official
/reload-plugins

# Add agent-browser skill
npx skills add https://github.com/vercel-labs/agent-browser --skill agent-browser -y -g

Replicating on a new machine

Everything except agent-browser skill (project-local) is stored in ~/.claude.json and ~/.claude/ — so it follows your user account. On a new machine:

  1. Install Claude Code + Node.js
  2. Re-run claude mcp add for each MCP server
  3. Re-run /plugin install for each plugin inside Claude Code
  4. Re-run npx skills add for agent-browser

Tip: Keep this checklist bookmarked — it takes under 5 minutes to fully replicate your setup on any machine.

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