10 picks · ranked by GitHub stars

Best Claude Code skills

The best Claude Code skills are Systematic Debugging, Improve Codebase Architecture and Frontend Design; Systematic Debugging leads with 306,774 GitHub stars.

The list covers 1,000 agent skills in the appsgit catalog, one entry per repository.

Updated Oct 28, 2026 · data from GitHub, refreshed daily

Rank 1:
Systematic Debugging
obra/superpowers
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
Active · last commit Oct 21, 2026
Testing & QAShell
Stands out for the most GitHub stars. Systematic Debugging has 306,774 GitHub stars, has 306,946 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Cursor.
Rank 2:
Improve Codebase Architecture
mattpocock/skills
Scan a codebase for deepening opportunities, present them as a visual HTML report, then grill through whichever one you pick.
Active · last commit Oct 27, 2026
CodingShell
Stands out for the most installs on skills.sh (1,167,664). Improve Codebase Architecture has 305,150 GitHub stars, has 1,167,664 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Cursor.
Rank 3:
Frontend Design
anthropics/skills
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one.
Maintained · last commit Oct 9, 2026
OfficialDesign & frontendPython
Stands out for being published by the vendor itself. Frontend Design has 184,344 GitHub stars, is published by the vendor itself, has 1,029,618 installs on skills.sh, runs without an API key and works with Claude Code.

At a glance

Claude Code skills compared

Ranked by GitHub stars (installs on skills.sh break ties), at most one entry per repository so one project cannot fill the list.

Top 10 picks compared, data as of Oct 28, 2026
App	Stands out for	License	GitHub stars	Last commit	API key
Systematic Debugging	the most GitHub stars	MIT	306,774	Oct 21, 2026	Not needed
Improve Codebase Architecture	the most installs on skills.sh (1,167,664)	MIT	305,150	Oct 27, 2026	Not needed
Frontend Design	being published by the vendor itself	Apache-2.0	184,344	Oct 9, 2026	Not needed
Ponytail	a permissive MIT license	MIT	178,476	Oct 18, 2026	Not needed
Next Cache Components Adoption	the most recent release (v16.4.3, October 2026)	MIT	143,173	Oct 27, 2026	Not needed
Design System	–	MIT	141,758	Oct 26, 2026	Not needed
Shadcn	–	MIT	126,769	Oct 27, 2026	Not needed
Browser Use	–	MIT	119,344	Oct 26, 2026	Needed
Safe Refactor	–	Apache-2.0	115,623	Oct 25, 2026	Not needed
Code Review And Quality	–	MIT	111,265	Oct 13, 2026	Not needed

Full ranking

All 10 picks, ranked

Ranked by GitHub stars (installs on skills.sh break ties), at most one entry per repository so one project cannot fill the list.

1
Systematic Debuggingobra/superpowers
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.
Shell
Stands out for the most GitHub stars. Systematic Debugging has 306,774 GitHub stars, has 306,946 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Cursor.
2
Improve Codebase Architecturemattpocock/skills
Scan a codebase for deepening opportunities, present them as a visual HTML report, then grill through whichever one you pick.
Shell
Stands out for the most installs on skills.sh (1,167,664). Improve Codebase Architecture has 305,150 GitHub stars, has 1,167,664 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Cursor.
3
Frontend Designanthropics/skills
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one.
Python
Stands out for being published by the vendor itself. Frontend Design has 184,344 GitHub stars, is published by the vendor itself, has 1,029,618 installs on skills.sh, runs without an API key and works with Claude Code.
4
PonytailDietrichGebert/ponytail
Lazy senior dev mode: the smallest change that fully solves the task, and a reply a busy human understands in one read.
JavaScript
Stands out for a permissive MIT license. Ponytail has 178,476 GitHub stars, has 104,938 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Cursor.
5
Next Cache Components Adoptionvercel/next.js
Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces.
JavaScript
Stands out for the most recent release (v16.4.3, October 2026). Next Cache Components Adoption has 143,173 GitHub stars, is published by the vendor itself, has 4 installs on skills.sh, runs without an API key and works with Claude Code.
6
Design Systemnextlevelbuilder/ui-ux-pro-max-skill
Token architecture, component specifications, and slide generation.
Python
Design System has 141,758 GitHub stars, has 480 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Cursor.
7
Shadcnshadcn-ui/ui
Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI, including chat interfaces.
TypeScript
Shadcn has 126,769 GitHub stars, has 122,024 installs on skills.sh, runs without an API key and works with Claude Code.
8
Browser Usebrowser-use/browser-use
Direct browser control via CDP for web interaction: automation, scraping, testing, screenshots, and site/app work.
Python
Browser Use has 119,344 GitHub stars, is published by the vendor itself, has 98,125 installs on skills.sh, needs an API key or token and works with Claude Code, Codex and Cursor.
9
Safe RefactorJuliusBrussee/caveman
Restructure code while preserving behavior.
Go
Safe Refactor has 115,623 GitHub stars, has 105,479 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Gemini CLI.
10
Code Review And Qualityaddyosmani/agent-skills
Conducts multi-axis code review. Use before merging any change.
JavaScript
Code Review And Quality has 111,265 GitHub stars, has 72,431 installs on skills.sh, runs without an API key and works with Claude Code, Codex and Cursor.

How we ranked

Ordering rule: Ranked by GitHub stars (installs on skills.sh break ties), at most one entry per repository so one project cannot fill the list.

Every skill on appsgit (1,000) works with Claude Code, so this ranking covers the whole collection.
The catalog itself only lists skills with a valid SKILL.md, a license and a commit in the last six months, from repositories with 100+ stars or a skills.sh listing.

No pick on this page is sponsored.

Questions and answers

Still curious? Email info@appsgit.com.

Do these agent skills need an API key?

1 of the 10 picks need an API key or token, for example Browser Use; 9 run without one. Each page on appsgit lists the environment variables a agent skill expects.

Which coding agents work with these skills?

Claude Code (all), Codex (7 of 10), Cursor (6 of 10) and GitHub Copilot (6 of 10). The client list comes from each project's published compatibility data; appsgit does not guess it.

Are any of these agent skills official?

Yes: Frontend Design, Next Cache Components Adoption and Browser Use are published by the vendor themselves.

How do I install an agent skill?

A skill is a folder with a SKILL.md file that you copy into your agent's skills directory, or install from a plugin marketplace when the repository is one. Every skill page on appsgit shows the install command.

How is this list ranked?

Ranked by GitHub stars (installs on skills.sh break ties), at most one entry per repository so one project cannot fill the list.

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Best Claude Code skills

Top picks

Systematic Debugging

Improve Codebase Architecture

Frontend Design

Claude Code skills compared

All 10 picks, ranked

Questions and answers

Do these agent skills need an API key?

Which coding agents work with these skills?

Are any of these agent skills official?

How do I install an agent skill?

How is this list ranked?

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