Best agent skills for Cursor, Claude Code and Copilot

Independent curation of agent skills (SKILL.md) for Cursor, Claude Code, GitHub Copilot and Windsurf. Compare open source skills, check compatibility and get direct GitHub links.

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The best agent skills in 2026 depend on the task: Design Taste Frontend for UI, Humanize Writing for copy, Web App Testing for QA and anthropics/skills as the official library. Skills are SKILL.md packages on GitHub — different from SaaS tools like ChatGPT (see Best AI).

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1. Design Taste Frontend

4.8

Anti-slop skill for landing pages and UI that do not look templated

Tem versão grátis Destaque Open source Open source (MIT/CC0)

SKILL.md package from the taste-skill repo: the agent infers the brief, avoids generic UI, and applies design systems with an audit-first approach to redesigns.

  • Cursor (.cursor/skills/) and Claude Code
  • Built for landing pages and portfolios
  • Audit before changing in redesign workflows
  • MIT — Leonxlnx/taste-skill repository

Redesign existing projects with an audit before you code

Tem versão grátis Destaque Open source Open source (MIT/CC0)

Second skill in taste-skill: maps what to preserve, proposes a visual direction, and avoids blind CSS refactors.

  • Audit-first
  • Cursor-compatible
  • Pairs with design-taste-frontend

3. Humanize Writing

4.5

Remove text patterns that scream AI-generated

Tem versão grátis Destaque Open source Open source (MIT/CC0)

Skill to rewrite copy with a natural voice: detects formulaic phrases, artificial transitions, and empty corporate tone.

  • Cursor and Claude
  • Dictionary of AI patterns
  • Good for blogs and landing pages

Official Anthropic skill for web interfaces

Tem versão grátis Destaque Open source Open source (MIT/CC0)

Part of the anthropics/skills repository: instructions for Claude to build frontend with solid layout, typography, and component practices.

  • Official Anthropic
  • Claude Code plugin
  • Agent Skills standard

5. Web App Testing

4.5

Agent-guided E2E tests and QA

Tem versão grátis Destaque Open source Open source (MIT/CC0)

Official skill to validate web applications: Playwright flows, assertions, and UI debugging with Claude or Cursor.

  • Playwright-friendly
  • Official Anthropic
  • Good for local CI

6. Deploy to Vercel

4.5

Deploy projects to Vercel with your agent

Tem versão grátis Destaque Open source Open source (MIT/CC0)

Skill from vercel-labs/agent-skills to guide deploys, previews, and production checklists on Vercel.

  • Official Vercel
  • Cursor / Claude
  • Deploy + review

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Perguntas frequentes

What is an agent skill?

A folder with SKILL.md (YAML + instructions) that teaches the agent to perform a task — for example testing a site or humanizing text. Different from a SaaS tool like ChatGPT.

How do I install skills in Cursor?

Copy the skill folder to .cursor/skills/skill-name/ in your project (or ~/.cursor/skills/ globally). The agent uses the description field in the frontmatter to decide when to load it.

Are third-party skills safe?

Read SKILL.md and any scripts in scripts/ before installing. Prefer anthropics/skills, vercel-labs/agent-skills and trailofbits/skills; avoid repos without a clear license.

Does this work in Claude Code?

Yes. Many skills use .claude/skills/ or plugins (/plugin marketplace add anthropics/skills). The SKILL.md format follows the same Agent Skills standard.