Collection

Best Cross-Agent Skills

Skills verified to work across at least 4 of: Claude Code, Cursor, Codex, Gemini CLI, Antigravity.

7 skills · ranked by composite score

What to pick from Best Cross-Agent Skills

The Skills worth installing if you switch agents are frontend-design, remotion-best-practices and composio — each verified working on Claude Code plus at least two independent third-party clients, not merely assumed to work because SKILL.md is a plain-text format. That distinction is the whole point of this page: the characteristic cross-agent failure is a Skill that loads and quietly does less, which is exactly what assumed compatibility hides.

Curated

Best Cross-Agent Skills

Escape generic AI-generated UIs. Forces a bold, distinctive design direction before any code is written.

ReactTailwindDesign
All surfaces
Low1 min

1,000+ SaaS integrations as one skill. OAuth lifecycle, scoped credentials, structured actions.

OAuthSaaSAction-taking
All surfaces
Medium5 min
Official

Extract, fill, merge. PDF manipulation with bundled scripts so Claude does not waste tokens generating them.

PDFFormsRead-write
All surfaces
Low1 min

20 SEO + GEO skills in one bundle. Keyword research, audits, rank tracking, AI search optimization.

SEOGEOContent
Code
Medium5 min

32+ marketing skills in one bundle. CRO, copywriting, SEO, analytics, email, growth.

CROCopywritingEmail
Code
Low4 min