Claude Code skills and plugins

Official

Anthropic Directory

Built in, so there is no marketplace to add.

Plugins:

• claude-code-setup: recommends hooks, subagents, skills and MCP servers for a codebase
• code-simplifier: simplifies and tidies recently changed code
• frontend-design: guidance for distinctive, intentional UI design
• security-guidance: security reminders while coding
• superpowers: a skill-driven workflow covering brainstorming, planning, TDD, debugging and review
• marketing: content, SEO and campaign skills

claude-plugins-official

Repo: https://github.com/anthropics/claude-plugins-official 

Install the marketplace:

/plugin marketplace add anthropics/claude-plugins-official

Plugins:

• claude-md-management: audit and update CLAUDE.md files
• playwright: browser automation and testing

knowledge-work-plugins

Repo: https://github.com/anthropics/knowledge-work-plugins 

Install the marketplace:

/plugin marketplace add anthropics/knowledge-work-plugins

Plugins:

• engineering: code review, debugging, system design, architecture decision records (ADRs) and more

Community

pstack-claude

Repo: https://github.com/michael-denyer/pstack-claude 

Install:

/plugin marketplace add michael-denyer/pstack-claude
/plugin install pstack@pstack-claude

Impeccable UI/UX

Repo: https://github.com/pbakaus/impeccable 

Install the plugin:

/plugin marketplace add pbakaus/impeccable

Or install it with the CLI:

npx impeccable install