The 10 Most Installed Claude Code Skills in 2026
Install counts don't lie. These are the Claude Code skills that developers keep coming back to — not because they're hyped, but because they actually improve output. Here's the ranked list, with an honest take on each.
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01superpowers:test-driven-development Automate
The single highest-impact skill in the ecosystem. It enforces the red-green-refactor loop by writing failing tests before any implementation code exists — a discipline most developers intend to follow but rarely do without structural help. Teams that adopt it consistently report fewer regression bugs and faster code reviews. It's also the most-forked skill pattern: dozens of language-specific variants are built on its template.
Installnpx skills add anthropics/skills@test-driven-development -g -y -
02frontend-design:frontend-design Generate
Produces production-grade UI components and pages without the generic "AI look" — no default blue buttons, no Tailwind boilerplate that looks like every other project. It covers 13 frameworks (React, Next.js, Vue, Svelte, SwiftUI, and more), ships with 67 named design styles, and generates accessible markup by default. If you build front-ends with Claude, this is the first skill to install.
Installnpx skills add anthropics/skills@frontend-design -g -y -
03superpowers:systematic-debugging Audit
Replaces random trial-and-error with a structured, evidence-first debugging process. It walks Claude through isolating the faulty component, forming a falsifiable hypothesis, and confirming the fix before closing the loop — rather than just throwing patches at the wall. Particularly effective on intermittent bugs and race conditions where symptoms are misleading.
Installnpx skills add anthropics/skills@systematic-debugging -g -y -
04superpowers:brainstorming Generate
Explores requirements, edge cases, and design tradeoffs before a single line of code is written. It prevents the most expensive kind of waste: building the wrong thing correctly. Developers describe it as the skill that makes Claude feel like a thoughtful collaborator rather than a fast typist — it asks the questions you forgot to ask yourself.
Installnpx skills add anthropics/skills@brainstorming -g -y -
05find-skills Automate
A meta-skill: it helps you find other skills from inside a Claude session. Ask "is there a skill for X?" and it searches the ecosystem and returns install commands. High install count makes sense — it's usually one of the first skills people pick up, then use to bootstrap the rest of their setup. Think of it as the package-manager UI for your AI toolchain.
Installnpx skills add anthropics/skills@find-skills -g -y -
06seo Analyze
Covers the full SEO stack in one skill: technical audits (crawl issues, Core Web Vitals, robots/sitemap), on-page optimization, structured data markup, and content strategy. It runs against your actual codebase rather than a URL, so it catches issues that external scanners miss — like misconfigured canonical tags buried in layout components or missing JSON-LD in server-rendered pages.
Installnpx skills add anthropics/skills@seo -g -y -
07superpowers:writing-plans Automate
Produces structured implementation plans — with explicit steps, file targets, acceptance criteria, and risk notes — before any code is touched. Works well as a pre-commit ritual on larger features: you get a reviewable artifact before anything changes, and Claude has a shared mental model to navigate back to when it gets lost mid-task. Pairs naturally with the brainstorming skill.
Installnpx skills add anthropics/skills@writing-plans -g -y -
08claude-api Generate
Builds Anthropic SDK applications with prompt caching baked in from the start — not as an afterthought. It handles boilerplate for tool use, streaming, batch requests, and the Files API, and it applies model-version best practices automatically so you don't ship deprecated patterns. Indispensable if you're building Claude-powered features into products rather than just using Claude interactively.
Installnpx skills add anthropics/skills@claude-api -g -y -
09superpowers:security-review Audit
Runs an OWASP-aligned security review on the diff of your current branch — not the whole codebase, just the code you changed. It flags injection vectors, credential leaks, insecure defaults, and broken access control patterns, then explains each finding with enough context to fix it correctly. Developers who ship to production treat this as a pre-PR ritual, not an optional step.
Installnpx skills add anthropics/skills@security-review -g -y -
10simplify Audit
Reviews recently changed code for reuse opportunities, unnecessary complexity, and efficiency issues — then fixes what it finds. Best used right after you've shipped a working feature: it's the difference between code that works and code you're not embarrassed by in six months. It catches duplicated logic, oversized functions, and missed built-in APIs that are easy to overlook when you're in implementation mode.
Installnpx skills add anthropics/skills@simplify -g -y
How to install any of these
All 10 skills install the same way. One command, globally, and they're available in every Claude session on your machine — in the CLI, VS Code, Cursor, Windsurf, and 55+ other Claude-compatible agents.
# Replace skill-name with the skill you want
npx skills add anthropics/skills@skill-name -g -y
# Install all 10 at once
npx skills add anthropics/skills@test-driven-development -g -y
npx skills add anthropics/skills@frontend-design -g -y
npx skills add anthropics/skills@systematic-debugging -g -y
npx skills add anthropics/skills@brainstorming -g -y
npx skills add anthropics/skills@find-skills -g -y
npx skills add anthropics/skills@seo -g -y
npx skills add anthropics/skills@writing-plans -g -y
npx skills add anthropics/skills@claude-api -g -y
npx skills add anthropics/skills@security-review -g -y
npx skills add anthropics/skills@simplify -g -y