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168 tools
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Test-Driven Development
Write the failing test first, then the code.
Open sourceTesting & QA228.7K installs · 287.9K starsWeb Design Guidelines
Check your UI against Vercel's interface guidelines.
FreeFrontend642.7K installs · 31.3K starsWriting for Agents
Write skills, AGENTS.md and CLAUDE.md that agents actually follow.
Open sourceDocs & writing274.6K installs · 264K starsExcel (xlsx)
Read, fix and build spreadsheets with formulas and charts.
FreeData & analysis169.7K installs · 176.8K starsDeploy to Vercel
Ask your agent to deploy, and get the live link back.
FreeDevOps & deployCoding agents onlyOfficialVercel130.1K installs · 31.3K starsDiagnosing Bugs
A diagnosis loop for hard bugs and slowdowns.
Open sourceDebugging618.5K installs · 264K starsDifferential Review
A security-focused review of every change, from Trail of Bits.
Open sourceSecurity6.6K installs · 7.1K starsDoc Co-authoring
Write specs, proposals and docs with your agent, step by step.
FreeDocs & writing84.6K installs · 176.8K starsCode Review
Review pull requests the way Sentry's engineers do.
Open sourceCode review4.8K installs · 994 starsPostgres Best Practices
Supabase's rules for schemas, migrations and queries.
Open sourceBackend & APIsOfficialSupabasePostgres405.1K installs · 2.6K starsReact Best Practices
Vercel's React and Next.js performance rules for your agent.
FreeFrontendReactNext.js721.4K installs · 31.3K starsWebapp Testing
Test your local web app in a real browser with Playwright.
Open sourceTesting & QACoding agents onlyPython158.3K installs · 176.8K starsAnthropic Skills
Anthropic's own skills, from frontend design to documents.
Open sourceDocuments & office3.2M installs · 176.8K starsAwesome Claude Skills
A long, curated GitHub list of skills and skill resources.
Open sourceSkills ecosystemAwesome Skills
A skills marketplace with a risk score on every entry.
FreeSkills ecosystemSecurity checks
