How plugins work, in one minute
- A plugin is a folder with a
.claude-plugin/plugin.jsonmanifest and any mix of skills, slash commands, subagents, hooks, MCP servers and tools (Claude Code docs: plugins). - A marketplace is a repository that lists plugins. Anthropic’s official one,
claude-plugins-official, is added for you; its plugins come from Anthropic, its partners and vendors (Discover plugins). - Install with
/plugin install <name>@<marketplace>in a session, or browse with/plugin. For another marketplace, add it first:/plugin marketplace add owner/repo.
/plugin install code-review@claude-plugins-official
Review your code
Before you ship, a second reader catches what you stopped seeing.
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code-review
Anthropic
A /code-review command: several agents review a pull request and score their confidence, so weak findings are filtered out.
/plugin install code-review@claude-plugins-official -
pr-review-toolkit
Anthropic
/review-pr plus six focused reviewers: silent failures, tests, types, comments, simplification.
/plugin install pr-review-toolkit@claude-plugins-official -
coderabbit
CodeRabbit
A second-opinion review backed by 40+ static analyzers.
/plugin install coderabbit@claude-plugins-official -
compound-engineering
Every
A whole workflow — brainstorm, plan, work, review, then write down what you learned — as /ce- commands. Add its marketplace first: /plugin marketplace add EveryInc/compound-engineering-plugin.
/plugin install compound-engineering@compound-engineering-plugin
Keep it secure
Cheap insurance before strangers start using it.
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security-guidance
Anthropic
Hooks only: warns on risky edits and reviews your diff for injection, XSS, SSRF, leaked secrets and more.
/plugin install security-guidance@claude-plugins-official -
claude-security
Anthropic
A deep vulnerability scan whose findings are challenged before you see them, with verified patches.
/plugin install claude-security@claude-plugins-official -
semgrep
Semgrep
Real-time security scanning with Semgrep’s rules.
/plugin install semgrep@claude-plugins-official
Build the front end
So the launch screenshots look like a product, not a template.
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frontend-design
Anthropic
A skill for distinctive, non-generic UI.
/plugin install frontend-design@claude-plugins-official -
figma
Figma
Figma’s MCP server and skills: designs and tokens into code.
/plugin install figma@claude-plugins-official -
playwright
Microsoft (listed by Anthropic)
Drives a real browser for end-to-end tests and screenshots.
/plugin install playwright@claude-plugins-official -
chrome-devtools-mcp
Google
Live Chrome: performance traces, network and console, to find what’s slow before visitors do.
/plugin install chrome-devtools-mcp@claude-plugins-official
Deploy and host it
Pick the one for your stack.
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vercel
Vercel
Deploys, logs and domains.
/plugin install vercel@claude-plugins-official -
cloudflare
Cloudflare
Skills for Workers, Durable Objects, Wrangler and web performance, plus Cloudflare’s MCP.
/plugin install cloudflare@claude-plugins-official -
railway
Railway
Deploys and environments.
/plugin install railway@claude-plugins-official -
render
Render
Deploys, with a hook that validates render.yaml.
/plugin install render@claude-plugins-official -
netlify-skills
Netlify
Netlify platform skills.
/plugin install netlify-skills@claude-plugins-official -
supabase
Supabase
Supabase’s hosted MCP and two skills.
/plugin install supabase@claude-plugins-official
Take payments
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stripe
Stripe
Stripe’s MCP server plus skills for best practices, docs and API upgrades.
/plugin install stripe@claude-plugins-official
See what breaks and what people do
Launch day traffic finds the bugs your tests didn’t.
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sentry
Sentry
Sentry’s MCP: issues, traces and Seer’s root-cause analysis, from the terminal.
/plugin install sentry@claude-plugins-official -
posthog
PostHog
Analytics, feature flags, experiments and error tracking.
/plugin install posthog@claude-plugins-official
Docs and email
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mintlify
Mintlify
Docs sites in MDX.
/plugin install mintlify@claude-plugins-official -
resend
Resend
Transactional email skills plus Resend’s MCP.
/plugin install resend@claude-plugins-official -
context7
Upstash
Up-to-date library docs, so the agent stops guessing at APIs.
/plugin install context7@claude-plugins-official
Market it
Not code, but part of shipping.
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marketing
Anthropic
SEO audits, content drafts, campaign plans and competitive briefs. Add its marketplace first: /plugin marketplace add anthropics/knowledge-work-plugins.
/plugin install marketing@knowledge-work-plugins
Launch it
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launchdog
Launchdog (us)
Launchdog’s MCP server and a launch skill: your agent drafts the listing from your site, books a free or paid week on our board and adds the badge. Add its marketplace first: /plugin marketplace add DevStarks/launchdog-agent-plugin.
/plugin install launchdog@launchdog
Before you install one
- A plugin can run code on your machine with your user’s permissions. Its hooks, MCP servers and tools run outside Claude Code’s sandbox and permission rules; its skills and agents go into Claude’s context as instructions (Plugin security).
- Anthropic doesn’t review third-party marketplaces. Read the “Will install” pane, and for anything unfamiliar its
hooks/hooks.jsonand.mcp.json. - Every enabled plugin costs context on every turn. Keep the ones you use;
claude plugin details <name>shows what each one adds. - Updates: official marketplace plugins update automatically; third-party ones don’t until you refresh their marketplace.
Then launch it
Shipped? The launch checklist covers the run-up, and where to launch compares the boards. If you’d rather your agent did the listing, Launchdog works from Claude Code with or without the plugin.