Agent skills you can check before you install
Public SKILL.md skills from GitHub repositories with 50+ stars and from the vendors themselves, scanned and scored. Install any of them with one command in Claude Code, Cursor, Codex, GitHub Copilot or Gemini CLI.
49,492 skills from 2,391 repositories · updated 15 hours ago
48,451 skills
- mcp-mocked-markeralibaba/skill-upMCP mocked marker smoke skill used by skill-up e2e tests.TestingNo warnings★ 1.4K↓ —
- cmmc-readinessalirezarezvani/claude-skillsUse when a defense contractor or subcontractor is preparing for a CMMC 2.0 Level 2 self-assessment or C3PAO assessment, calculating or checking an SPRS score against NIST SP 800-171 Rev 2, deciding what can go on a POA&M, tracking POA&M closeout before Conditional status expires, or scoping assets, enclaves and cloud providers that handle CUI. Scores all 110 requirements with the 32 CFR 170.24 weights, blocks gaps that can never be deferred, and classifies the asset inventory into CMMC asset categories.PlanningNo warnings★ 29.3K↓ —
- influencer-prospectingScrapeCreators/social-media-research-skillsUse when the user wants to find creators, influencers, affiliates, or social accounts in a niche for outreach, partnerships, sponsorships, UGC, seeding, or competitive research. Produces scored prospect lists from public social data.ScienceNo warnings★ 5.5K↓ —
- outlier-post-finderScrapeCreators/social-media-research-skillsUse when the user wants to find posts, videos, reels, shorts, tweets, or social content that overperformed versus a creator, brand, or competitor baseline. Finds outliers, explains why they worked, extracts hooks and formats, and produces a practical swipe file.OtherNo warnings★ 5.5K↓ —
- cpp-testinghashgraph-online/awesome-codex-pluginsUse only when writing/updating/fixing C++ tests, configuring GoogleTest/CTest, diagnosing failing or flaky tests, or adding coverage/sanitizers.TestingNo warnings★ 1.5K↓ —
- ad-library-teardownScrapeCreators/social-media-research-skillsUse when the user wants to analyze active ads from Meta/Facebook, Google, or LinkedIn ad libraries; tear down a competitor's messaging; extract hooks, offers, CTAs, video transcripts, landing page claims, and test ideas from public ads.MarketingNo warnings★ 5.5K↓ —
- corl-experimentsbrycewang-stanford/Awesome-Journal-SkillsUse when designing or auditing experiments for a CoRL robot-learning paper — seeds and evaluation-episode counts, task-suite breadth, real-robot versus simulation evidence, sim-to-real gap measurement, baseline fairness across BC/RL/VLA families, generalization splits, and statistics for success-rate claims.ScienceNo warnings★ 1.4K↓ —
- inithashgraph-online/awesome-codex-pluginsInitialize KERNEL links and AgentDB in a confirmed Vaults directory.OtherNo warnings★ 1.5K↓ —
- githubkostja94/marketing-skillsWhen the user wants to use GitHub for SEO, parasite SEO, GEO, open source marketing, README optimization, or curated Awesome lists. Also use when the user mentions "GitHub," "GitHub SEO," "GitHub parasite SEO," "GitHub GEO," "awesome list," "GitHub README," "profile README," "pinned repositories," "Trending," "Explore," "repository name," "About section," "GitHub description," "GitHub topics," "Website field," "GitHub Pages," "github.io," "user site," "project site," "GitHub gist," "curated list," or "navigation list." Not for Medium or other non-GitHub platforms—use parasite-seo or medium-posts. For OSS business model, use open-source-strategy.MarketingNo warnings★ 1.1K↓ —
- marketing-opsalirezarezvani/claude-skillsUse when a marketing request spans several skills (a campaign across content, SEO, CRO and channels) or it is unclear which skill fits. Routes and sequences the work and tracks it with campaign_tracker.py.MarketingNo warnings★ 29.3K↓ —
- usability-testingrampstackco/claude-skillsPlan and run usability tests on existing or prototype designs including test design, task scripts, moderation, observation, and findings synthesis. Use this skill whenever the user wants to test usability, run a moderated test, run an unmoderated test, validate a design, find usability issues, or improve task completion. Triggers on usability test, usability testing, moderated test, unmoderated test, task script, think aloud, prototype testing, user testing, design validation, task completion. Also triggers when the user has built something and wants to know if real users can use it before shipping.TestingNo warnings★ 1K↓ —
- article-contentkostja94/marketing-skillsWhen the user wants to write, generate, or create article body content—blog post body, long-form content, how-to guide, listicle. Also use when the user mentions "write article," "article content," "blog post content," "article body," "long-form content creation," "generate article," "article draft," "how-to guide content," "listicle content," "information gain," or "content density." For single post page structure, schema, and SEO metadata, use article-page-generator. For blog index/listing page, use blog-page-generator. For short ad, landing, or email copy, use copywriting.WritingNo warnings★ 1.1K↓ —
- reddit-postskostja94/marketing-skillsWhen the user wants to create Reddit post copy, comments, or optimize for Reddit. Also use when the user mentions "Reddit post," "subreddit," "r/," "Reddit marketing," "post to Reddit," "Reddit thread," "Reddit comment," "Reddit copy," "Reddit content," or "Reddit engagement." For Reddit ads, use reddit-ads.MarketingNo warnings★ 1.1K↓ —
- upgrade-stripefcakyon/claude-codex-settingsGuide for upgrading Stripe API versions, webhook endpoints, server-side SDKs, Stripe.js, and mobile SDKsEngineeringNo warnings★ 1.2K↓ —
- add-cameramicrosoft/power-platform-skillsInternal implementation skill invoked by /add-native for camera, image picker, barcode scanner, QR scanner, and camera/gallery Dataverse artifact workflows.MediaNo warnings★ 1.1K↓ —
- vitestjezweb/claude-skillsSet up Vitest testing in any project — detects type (Cloudflare Workers, React, Node, library), generates vitest.config.ts, test setup, utilities, and a sample test. Covers mocking patterns, coverage config, workspace setup, Jest migration. Use whenever the user mentions adding tests, setting up Vitest, configuring tests, migrating from Jest, fixing testing infrastructure, or asks 'how do I test this'.TestingNo warnings★ 1.1K↓ —
- chaos-engineeringalirezarezvani/claude-skillsUse before running a chaos experiment, gameday or fault injection, or after one to write it up. Designs it with steady state and abort criteria in experiment_designer.py, sizes the blast radius with blast_radius_calculator.py and drafts the postmortem.WritingNo warnings★ 29.3K↓ —
- security-baselinerampstackco/claude-skillsEstablish a security baseline for a website or web app. Use this skill when configuring HTTPS and TLS, setting security headers, planning secrets management, evaluating CSP policies, doing a basic security audit, or hardening a site before launch. Triggers on security headers, HTTPS, TLS, CSP, content security policy, HSTS, secrets management, vulnerability scan, security audit, harden, OWASP, security baseline. Also triggers when a security review is required for compliance or before going live.SecurityNo warnings★ 1K↓ —
- gentle-ai-cognitive-doc-designGentleman-Programming/gentle-shellDesign docs that reduce cognitive load. Trigger: writing guides, READMEs, RFCs, onboarding, architecture, or review-facing docs.DesignNo warnings★ 1.6K↓ —
- rendererdzhng/skillsArchitecture rules for GPU rendering with TypeGPU/WebGPU. Use when adding or changing render passes, shaders, frame orchestration, GPU resources, culling, terrain, shadows, or visual performance work.MediaNo warnings★ 1.4K↓ —
- make-static-ads-concept-gridgooseworks-ai/goose-skillsStep of make-static-ads: turns the chosen angles into messages, visual ideas and a template per ad, checks each against the brand profile and recent ads, writes the concept board and has a fresh critic attack it before any copy, prompt or spend. Run make-static-ads instead; not for direct use.MarketingNo warnings★ 1.3K↓ —
- orchestratehashgraph-online/awesome-codex-pluginsCoordinate several workers: what idle agents do next, which finished work gets checked first, how to recover a dead one. Use when: managing multiple agents.OtherNo warnings★ 1.5K↓ —Also in 2 other repos
- audience-researchScrapeCreators/social-media-research-skillsUse when the user wants to evaluate a creator, influencer, or brand audience using public profile signals, TikTok audience demographics, follower/following data, comments, geography, language, and content fit. Helps judge sponsorship and market fit.ScienceNo warnings★ 5.5K↓ —
- find-quoteshashgraph-online/awesome-codex-pluginsFinds exact spoken quotes and clip-ready moments on podcasts and YouTube: verbatim words, speaker, date, a timestamped link, clip start and end. Uses arcmira.OtherNo warnings★ 1.5K↓ —
cell-fit
brycewang-stanford/Awesome-Journal-Skills
From the author
Use when triaging a study before any writing — stress-tests whether it clears Cell's bar (a complete, mechanistic, hypothesis-driven story with multiple converging lines of evidence) or belongs at a sibling. Use this first to decide Cell vs Molecular Cell vs Cell Reports vs Cell Reports Medicine before investing in framing or figures.
Install
npx skills add brycewang-stanford/Awesome-Journal-Skills --skill cell-fit -a claude-code
Installs to .claude/skills/cell-fit/ · Each command fetches the skill straight from GitHub with the open skills CLI.
Byte-identical to the scanned commit, with the repository’s licence and a SOURCE.txt.
What it can touch
Safety checks on SKILL.md
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- SKILL.md