35 Claude Code Add-Ons

Plugins

Bundles of skills, commands, agents, hooks, MCP servers, and mods in one install

MCP servers

Give Claude tools that reach outside systems

Skills

Saved instructions Claude picks up when relevant

Mods

Code that reshapes how Claude Code looks and behaves

Hooks

Scripts that fire on events, such as after an edit

Add only what removes real friction. Every add-on costs some context and some trust.

• 1 · Frontend Design: sharper-looking interfaces
• 2 · Feature Dev: a guided workflow for features
• 3 · Code Review: a review of your changes
• 4 · PR Review Toolkit: reviews for pull requests
• 5 · Security Guidance: warnings about risky code
• 6 · Commit Commands: cleaner, tidier commits
• 7 · Hookify: rules turned into hooks
• 8 · CLAUDE.md Management: tidy project instructions
• 9 · Skill Creator: a builder for new skills

Install them from Anthropic’s plugin marketplace by running /plugin.

• 10 · Productivity: tasks and daily routines
• 11 · Data: SQL, analysis, and dashboard building
• 12 · Product Management: specs and product roadmaps
• 13 · Plugin Management: building and tailoring plugins for your team

These come from Anthropic’s knowledge-work-plugins marketplace and also work in Claude Cowork.

• 14 · GitHub MCP Server: repos, issues, and pull requests
• 15 · Context7: up-to-date library documentation
• 16 · Playwright MCP: testing in the browser
• 17 · Chrome DevTools MCP: debugging performance and the console
• 18 · Sentry: errors from production
• 19 · Linear: issues and projects
• 20 · Figma MCP server: design context for your code
• 21 · Supabase: databases and backends

• 22 · Word document skill
• 23 · Excel spreadsheet skill
• 24 · PowerPoint skill
• 25 · PDF skill
• 26 · Your own project skills, such as a checklist for releases

• 27 · /diff: the built-in diff pane, rebuilt as a mod
• 28 · You Should Know: a built-in mod that flags what you might miss, off by default
• 29 · Token Weather: a sample mod that displays context usage
• 30 · Blast Radius: a sample mod that pauses risky commands

Mods need Claude Code v2.1.287 or later in the terminal. They run without a sandbox, so install them only from trusted sources.

• 31 · A format-on-edit hook that runs your formatter after each change
• 32 · A notification hook that pings you when Claude needs input
• 33 · A custom status line that shows model, branch, and context

• 34 · The VS Code extension
• 35 · The JetBrains plugin

The Claude GitHub app brings Claude into pull requests and issues. Check which GitHub usage it requires before you turn on automations.

• Run /plugin to browse and install both plugins and mods
• Run claude mcp add, or use /mcp, for MCP servers
• Place skills in your project’s .claude/skills folder, or install them through a plugin
• Set up hooks and the status line in your settings

• Start with just three to five add-ons
• Remove anything unused for a month
• Check /context to see what takes up space
• Read the code of every third-party plugin and mod
• Never keep API keys in plugin files