The Best Free Claude Skills on GitHub

Every Agent Skill on findskills.co is free. All 370+ of them — MIT or Apache 2.0 licensed, hosted on GitHub, installable with one command. There’s no subscription, no skill marketplace, no paywall.

Here are the best ones organized by what they do.

For engineers

Senior DevOps Engineer — CI/CD architecture, Kubernetes decisions, IaC patterns, and infrastructure tradeoffs from a senior engineering perspective.

npx skills add alirezarezvani/claude-skills --skill engineering-team/senior-devops

CI/CD Pipeline Builder — production pipeline configs for GitHub Actions, GitLab CI, and CircleCI. Tell it your stack and deployment target, get a working pipeline back.

npx skills add alirezarezvani/claude-skills --skill engineering/ci-cd-pipeline-builder

Dependency Auditor — audit dependencies for CVEs, outdated packages, and license risks with a prioritised fix list.

npx skills add alirezarezvani/claude-skills --skill engineering/dependency-auditor

Engineering Incident Response — structured incident workflow: triage, communicate, write postmortem. Triggers on “we have an incident” or “production is down”.

npx skills add anthropics/knowledge-work-plugins --skill engineering

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For data and analytics

Data toolkit (Analyze + SQL Queries + Build Dashboard) — one install brings three skills: ad-hoc analysis with trend decomposition, cross-dialect SQL generation in plain English, and interactive HTML dashboards with charts and filters. No BI tool required.

npx skills add anthropics/knowledge-work-plugins --skill data

A/B Test Setup — hypothesis writing, sample size calculation, variant design, and results interpretation. Ensures experiments are designed correctly before you run them.

npx skills add alirezarezvani/claude-skills --skill marketing-skill/ab-test-setup

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For founders and business operators

CEO Advisor — strategic decision-making, organizational development, and board-level thinking from a senior leadership perspective.

npx skills add alirezarezvani/claude-skills --skill c-level-advisor/ceo-advisor

Pricing Strategy Advisor — pricing tiers, value metrics, packaging, and willingness-to-pay research. Covers both initial pricing and pricing changes.

npx skills add alirezarezvani/claude-skills --skill marketing-skill/pricing-strategy

Competitive Intelligence Tracker — structured competitor research with a comparison matrix. Trigger with a competitor name or “competitive intel”.

npx skills add anthropics/knowledge-work-plugins --skill research

Operations Status Report — weekly or milestone status reports with KPIs, risks, and next steps. Format-consistent output ready to send.

npx skills add anthropics/knowledge-work-plugins --skill operations

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For marketers and content teams

Marketing Strategy & PMM — positioning, ICP definition, competitive differentiation, and go-to-market strategy.

npx skills add alirezarezvani/claude-skills --skill marketing-skill/marketing-strategy-pmm

Page CRO Optimizer — conversion rate analysis for any marketing page. Structured output with specific, prioritised improvements.

npx skills add alirezarezvani/claude-skills --skill marketing-skill/page-cro

Cold Email Writer — B2B outreach sequences that get replies. Subject lines, opening lines, body copy, and multi-touch follow-up.

npx skills add alirezarezvani/claude-skills --skill marketing-skill/cold-email

AI SEO Optimizer — optimize content to get cited by ChatGPT, Perplexity, and AI Overviews alongside traditional search ranking.

npx skills add alirezarezvani/claude-skills --skill marketing-skill/ai-seo

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For freelancers and consultants

Contract & Proposal Writer — professional contracts, RFP responses, and business proposals. Clear terms, proper structure, covers both fixed-price and retainer engagements.

npx skills add alirezarezvani/claude-skills --skill business-growth/contract-and-proposal-writer

Sales Call Prep — account context, attendee research, and a suggested agenda before any client call.

npx skills add anthropics/knowledge-work-plugins --skill sales

Invoice Organizer — sort invoices and receipts into a cleaner bookkeeping workflow.

npx skills add ComposioHQ/awesome-claude-skills --skill invoice-organizer

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Where these come from

All skills on findskills.co are sourced from public GitHub repositories:

• anthropics/knowledge-work-plugins — 108 skills covering engineering, data, operations, HR, sales, legal, and productivity. Built by Anthropic.
• alirezarezvani/claude-skills — 143 skills across marketing, engineering, finance, and business. The largest community collection.
• ComposioHQ/awesome-claude-skills — 17 community skills for specific use cases.
• anthropics/skills — 17 official Anthropic skills including brand guidelines, PPTX, and internal comms.

→ Browse all skills

→ Full install guide

→ All major Claude skills GitHub repositories and awesome lists