Home / Skills / Security

Claude skills for security

1282 agent skills for security, ranked on usage and upkeep. Each installs pinned to the exact commit listed. None has been security-scanned yet.

web-design-guidelines

From the maker
vercel-labs/agent-skillsSkill

Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".

33k 21d ago ≈52 tokens always loaded Claude CodeSkills CLI Scanned
76popular

writing-guidelines

From the maker
vercel-labs/agent-skillsSkill

Review docs/prose for Writing Guidelines compliance. Use when asked to "review my docs", "check writing style", "audit prose", "review docs voice and tone", or "check this page against the writing…

33k 21d ago ≈57 tokens always loaded Claude CodeSkills CLI Scanned
76popular
tt-a1i/archifySkill

Simplification audit or authorized codebase simplification whose stated objective is to remove accidental complexity. Use for evidence-backed deletion or consolidation of dead code, duplicate state,…

86k 16d ago ≈117 tokens always loaded Claude CodeSkills CLI Scanned
93popular
coreyhaines31/marketingskillsSkill

When the user wants help with paid advertising campaigns on Google Ads, Meta (Facebook/Instagram), LinkedIn, Twitter/X, or other ad platforms. Also use when the user mentions 'PPC,' 'paid media,'…

56k 16d ago ≈151 tokens always loaded Claude CodeSkills CLI Scanned
88popular
coreyhaines31/marketingskillsSkill

When the user wants to optimize content for AI search engines, get cited by LLMs, or appear in AI-generated answers. Also use when the user mentions 'AI SEO,' 'AEO,' 'GEO,' 'LLMO,' 'answer engine…

56k 16d ago ≈152 tokens always loaded Claude CodeSkills CLI Scanned
88popular
coreyhaines31/marketingskillsSkill

When the user wants to set up, improve, or audit analytics tracking and measurement. Also use when the user mentions "set up tracking," "GA4," "Google Analytics," "event tracking," "UTM parameters,"…

56k 16d ago ≈153 tokens always loaded Claude CodeSkills CLI Scanned
88popular
coreyhaines31/marketingskillsSkill

When the user wants to audit or optimize an App Store or Google Play listing. Also use when the user mentions 'ASO audit,' 'app store optimization,' 'optimize my app listing,' 'improve app…

56k 16d ago ≈116 tokens always loaded Claude CodeSkills CLI Scanned
88popular
wshobson/agentsSkill

Conduct WCAG 2.2 accessibility audits with automated testing, manual verification, and remediation guidance. Use when auditing websites for accessibility, fixing WCAG violations, or implementing…

41k 16d ago ≈61 tokens always loaded Claude CodeSkills CLI Scanned
86popular
wshobson/agentsSkill

Design optimal agent team compositions with sizing heuristics, preset configurations, and agent type selection. Use this skill when deciding how many agents to spawn for a task, when choosing…

41k 16d ago ≈145 tokens always loaded Claude CodeSkills CLI Scanned
86popular
wshobson/agentsSkill

Audit and rewrite prose so it stops reading as machine-generated. Use this skill when asked to remove AI-isms, clean up AI writing, edit a draft for AI tells, audit a README, changelog, release…

41k 16d ago ≈105 tokens always loaded Claude CodeSkills CLI Scanned
86popular
alirezarezvani/claude-skillsSkill

Discover, find, compare, audit, repair, adapt, and design repeatable AI-agent loops with explicit triggers, actions, verification, stopping conditions, guardrails, and handoffs. Use when a user asks…

28k 2mo ago ≈153 tokens always loaded Claude CodeSkills CLI Scanned
80popular
Jeffallan/claude-skillsSkill

Designs cloud architectures, creates migration plans, generates cost optimization recommendations, and produces disaster recovery strategies across AWS, Azure, and GCP. Use when designing cloud…

12k +108 this week 19d ago ≈105 tokens always loaded Claude CodeSkills CLI Scanned
81popular
Jeffallan/claude-skillsSkill

Analyzes code diffs and files to identify bugs, security vulnerabilities (SQL injection, XSS, insecure deserialization), code smells, N+1 queries, naming issues, and architectural concerns, then…

12k +108 this week 19d ago ≈154 tokens always loaded Claude CodeSkills CLI Scanned
81popular
SnailSploit/Claude-RedSkill

Advanced API exploitation methodology focused on business logic abuse and sophisticated attack patterns that bypass traditional security controls. Covers business logic bypass through API call…

7.6k +163 this week 23d ago ≈155 tokens always loaded Claude CodeSkills CLI Scanned · 1 to know
79popular
SnailSploit/Claude-RedSkill

Comprehensive API security testing methodology covering REST, gRPC, and WebSocket attack surfaces. Addresses the full OWASP API Security Top 10 2023 including BOLA/IDOR, broken authentication,…

7.6k +163 this week 23d ago ≈156 tokens always loaded Claude CodeSkills CLI Scanned
79popular
SnailSploit/Claude-RedSkill

JWT attack methodology for penetration testers. Covers algorithm confusion (alg:none, RS256→HS256), weak HMAC secret brute force, kid parameter injection (SQLi, path traversal), jku/x5u/jwk header…

7.6k +163 this week 23d ago ≈116 tokens always loaded Claude CodeSkills CLI Scanned
79popular
SnailSploit/Claude-RedSkill

Comprehensive secrets extraction methodology targeting CI/CD environments across all major platforms. Covers environment variable extraction from build contexts, exploitation of vault and…

7.6k +163 this week 23d ago ≈156 tokens always loaded Claude CodeSkills CLI Scanned · 2 to know
79popular
SnailSploit/Claude-RedSkill

Cloud security attack methodology covering AWS, Azure, and GCP. Includes credential harvesting (IMDS, ~/.aws, env vars, leaked CI secrets, instance roles), enumeration with cloud-specific tools…

7.6k +163 this week 23d ago ≈154 tokens always loaded Claude CodeSkills CLI Scanned
79popular
Ryze-AI-Adgent/open-seo-mcp-skillsSkill

Full SEO audit of a site from its real Search Console + GA4 data — indexation health, CTR anomalies, decaying pages, striking-distance keywords, quick wins. Use when asked to "audit my site", "SEO…

6.2k +996 this week 22d ago ≈68 tokens always loaded Claude CodeSkills CLI Scanned
77popular
elementalsouls/Claude-BugHunterSkill

End-to-end Android APK red-team pipeline — automated APK acquisition (Play Store + apkpure + apkmirror fallback), jadx decompilation, secret/URL/JWT/Firebase grep, pinned-cert extraction,…

5.2k +113 this week 16d ago ≈155 tokens always loaded Claude CodeSkills CLI Scanned · 1 to know
77popular
elementalsouls/Claude-BugHunterSkill

Cloud IAM red-team attack chain across AWS, Azure, GCP — focused on EXTERNAL exploitation paths and post-credential-discovery privilege analysis. Covers IAM enumeration (aws iam, az role, gcloud…

5.2k +113 this week 16d ago ≈154 tokens always loaded Claude CodeSkills CLI Scanned · 1 to know
77popular
elementalsouls/Claude-BugHunterSkill

External SSL VPN / remote-access appliance attack matrix — Cisco ASA/AnyConnect, Fortinet FortiGate/FortiOS, Citrix NetScaler/ADC, Palo Alto GlobalProtect, Pulse Secure / Ivanti Connect Secure,…

5.2k +113 this week 16d ago ≈156 tokens always loaded Claude CodeSkills CLI Scanned · 2 to know
77popular
elementalsouls/Claude-BugHunterSkill

Hunt API security misconfiguration — mass assignment, prototype pollution, HTTP verb tampering. Mass assignment: send {is_admin:true, role:admin, verified:true} on profile/account/reset endpoints —…

5.2k +113 this week 16d ago ≈155 tokens always loaded Claude CodeSkills CLI Scanned
77popular
sergebulaev/linkedin-skillsSkill

Remove AI tells from LinkedIn posts/comments: 2026 vocabulary density, reveal bridges, staccato fragments, stacked triads, performed sincerity. Tiered rewriter plus `--mode audit` LinkedIn post…

5.0k +353 this week 20d ago ≈103 tokens always loaded Claude CodeSkills CLI Scanned · 3 to know
77popular
sergebulaev/linkedin-skillsSkill

Draft a new LinkedIn post from scratch using one of 20 2026 hook formulas (anaphora, R.I.P., time-anchor, curiosity-gap, contrarian, controlled A/B, false-binary, and more) plus a founders-edition…

5.0k +353 this week 20d ago ≈128 tokens always loaded Claude CodeSkills CLI Scanned
77popular
nowork-studio/notfair-pluginSkill

Backlink / off-page SEO audit. Works WITHOUT a paid tool by default — it uses the

4.0k +44 this week 16d ago ≈24 tokens always loaded Claude CodeSkills CLIGemini CLI Scanned
75popular
nowork-studio/notfair-pluginSkill

E-commerce SEO audit for online stores (WooCommerce, Shopify, Magento, custom).

4.0k +44 this week 16d ago ≈23 tokens always loaded Claude CodeSkills CLIGemini CLI Scanned
75popular
nowork-studio/notfair-pluginSkill

Plan, validate, and safely publish Google Ads assets, including sitelinks, callouts, structured snippets, image assets, and Performance Max asset briefs. Use when asked for Google Ads assets, ad…

4.0k +44 this week 16d ago ≈82 tokens always loaded Claude CodeSkills CLIGemini CLI Scanned
75popular
kaankiziltug/logo-design-skillSkill

Professional logo and brand-mark design, from brief to production files. Guides discovery and the design brief, concept generation, choosing a mark type (wordmark, monogram, letterform, pictorial,…

3.8k +654 this week 1mo ago ≈153 tokens always loaded Claude CodeSkills CLI Scanned · 1 to know
81popular
glitternetwork/pinmeSkill

Use when a PinMe Cloudflare Worker needs R2 object storage, including secure file or image upload, streaming download, metadata lookup, deletion, listing, Range requests, or R2+D1 coordination.…

3.8k +6 this week 2mo ago ≈81 tokens always loaded Claude CodeSkills CLI Scanned
71popular
davepoon/buildwithclaudeSkill

Pre-release verification checklist. Validates features, tests, docs, security, and quality gates before shipping. Delegates to the Centinela (QA) agent.

3.7k +33 this week 16d ago ≈42 tokens always loaded Claude CodeSkills CLI Scanned
76popular
davepoon/buildwithclaudeSkill

Deep security audit covering OWASP Top 10, authentication, authorization, data protection, dependency vulnerabilities, and secrets scanning. Delegates to the Centinela (QA) agent.

3.7k +33 this week 16d ago ≈49 tokens always loaded Claude CodeSkills CLI Scanned
76popular
Ar9av/obsidian-wikiSkill

Ingest Claude Code conversation/session history into Obsidian as distilled knowledge. Use for importing or mining past Claude sessions, .claude data, project/session history, or audit logs.

3.6k +38 this week 17d ago ≈53 tokens always loaded Claude CodeSkills CLI Scanned
75popular
Ar9av/obsidian-wikiSkill

Find and add missing cross-references between wiki pages. Use when pages are disconnected or after large ingestion. This modifies pages to add links; use wiki-lint for report-oriented structural…

3.6k +38 this week 17d ago ≈54 tokens always loaded Claude CodeSkills CLI Scanned
75popular
addyosmani/web-quality-skillsSkill

Audit and improve web accessibility following WCAG 2.2 guidelines. Use when asked to "improve accessibility", "a11y audit", "WCAG compliance", "screen reader support", "keyboard navigation", or…

3.0k +36 this week 2mo ago ≈57 tokens always loaded Claude CodeSkills CLIGemini CLI Scanned
71popular
addyosmani/web-quality-skillsSkill

Apply modern web development best practices for security, compatibility, and code quality. Use when asked to "apply best practices", "security audit", "modernize code", "code quality review", or…

3.0k +36 this week 2mo ago ≈60 tokens always loaded Claude CodeSkills CLIGemini CLI Scanned
71popular
addyosmani/web-quality-skillsSkill

Optimize web performance for faster loading and better user experience. Use when asked to "speed up my site", "optimize performance", "reduce load time", "fix slow loading", "improve page speed", or…

3.0k +36 this week 2mo ago ≈58 tokens always loaded Claude CodeSkills CLIGemini CLI Scanned
71popular
addyosmani/web-quality-skillsSkill

Run an evidence-led web quality audit covering performance, accessibility, SEO, best practices, and agentic browsing. Use when asked to "audit my site", "review web quality", "run lighthouse audit",…

3.0k +36 this week 2mo ago ≈66 tokens always loaded Claude CodeSkills CLIGemini CLI Scanned
71popular
romainsimon/paperasseSkill

Commissaire aux comptes IA pour l'audit des comptes annuels d'entreprises françaises. Applique la démarche

2.5k +18 this week 3mo ago ≈33 tokens always loaded Claude CodeSkills CLI Scanned
70popular
wondelai/skillsSkill

Guided journey from a leaking conversion flow - landing page, signup, checkout, or in-app onboarding - to a measured, tested funnel. Orchestrates six skills phase by phase - lean-analytics,…

2.5k +68 this week 2mo ago ≈156 tokens always loaded Claude CodeSkills CLI Scanned
68popular
plugin87/ux-ui-agent-skillsSkill

Audit a UI or design against WCAG 2.2 AA/AAA and ARIA patterns, returning criterion-referenced findings with severity and specific fixes. Use when the user wants an accessibility check, contrast…

2.4k +808 this week 16d ago ≈74 tokens always loaded Claude CodeSkills CLI Scanned
73popular
plugin87/ux-ui-agent-skillsSkill

Review or audit a design/UI across 6 weighted dimensions with Nielsen's 10 heuristics and a prioritized findings table. Use when the user wants a design critique, quality score, heuristic…

2.4k +808 this week 16d ago ≈71 tokens always loaded Claude CodeSkills CLI Scanned
73popular
Jakeschincariol/linkedin-agent-skillSkill

Post-mortem on what the user has already published - which posts actually

2.4k +396 this week 2mo ago ≈21 tokens always loaded Claude CodeSkills CLI Scanned
69popular
oil-oil/beautify-github-readmeSkill

Redesign GitHub README homepages or create project-native pure SVG, hybrid SVG-composed PNG/WebP, and opt-in animated GIF assets. Use when a user asks to beautify, redesign, rebrand, visually…

1.9k +30 this week 1mo ago ≈156 tokens always loaded Claude CodeSkills CLI Scanned
77popular
a5c-ai/babysitterSkill

Use when adding a new agent harness (CLI-based coding agent) adapter to adapters. Covers capability audit, adapter scaffold, session parsing, auth detection, hooks/plugins wiring, tests, and docs.

1.9k +17 this week 2mo ago ≈54 tokens always loaded Claude CodeSkills CLI Scanned
66popular
Klotzkette/claude-fuer-deutsches-rechtSkill

Für Auditrechte: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt. Fachgebiet: AGB-Recht-Prüfer. Route: agb-auditrechte.

1.7k +35 this week 16d ago ≈46 tokens always loaded Claude CodeSkills CLI Scanned
72popular
mohitagw15856/pm-claude-skillsSkill

Generate a WCAG 2.2 accessibility audit checklist and remediation suggestions for any UI or design. Use when asked to audit for accessibility, check WCAG compliance, review a design for a11y issues,…

1.5k +26 this week 16d ago ≈86 tokens always loaded Claude CodeSkills CLI Scanned
71popular
mohitagw15856/pm-claude-skillsSkill

Get back into a locked or hacked account the right way — the official recovery routes, what proof you'll need, and how to re-secure it so it doesn't happen again. Use when asked I'm locked out of my…

1.5k +26 this week 16d ago ≈132 tokens always loaded Claude CodeSkills CLI Scanned
71popular
conorluddy/ios-simulator-skillSkill

Build, test, and drive iOS apps in the Simulator with 30 token-efficient scripts. Use when asked to build or test an Xcode project, launch an app on a simulator, tap/type/swipe through its UI by…

1.3k +10 this week 16d ago ≈111 tokens always loaded Claude CodeSkills CLI Scanned · 2 to know
81popular
itsmostafa/aws-agent-skillsSkill

AWS EC2 virtual machine management — instances, security groups, key pairs, AMIs, EBS volumes,

1.2k +3 this week 16d ago ≈25 tokens always loaded Claude CodeSkills CLI Scanned
71popular
undefined-ui/second-brain-osSkill

Audit a second-brain vault for structural problems and repair them: broken

1.1k +38 this week 21d ago ≈23 tokens always loaded Claude CodeSkills CLI Scanned
69popular
undefined-ui/second-brain-osSkill

Audit the vault for material that should not be in it: credentials, other

1.1k +38 this week 21d ago ≈24 tokens always loaded Claude CodeSkills CLI Scanned
69popular
hoangsonww/Claude-Code-Agent-MonitorSkill

MANDATORY for every coding agent (Claude Code, Codex, or any other) on every change-set — every applicable source file the agent creates or updates MUST start with the project's copyright/authorship…

1.1k +28 this week 17d ago ≈116 tokens always loaded Claude CodeSkills CLI Scanned · 1 to know
70popular
jezweb/claude-skillsSkill

Run an independent code review using the OpenAI Codex CLI in headless mode. Gets a second opinion from a different model family (the current Codex models) on recent changes, a PR, a commit, or the…

1.1k +10 this week 26d ago ≈126 tokens always loaded Claude CodeSkills CLI Scanned
69popular
jezweb/claude-skillsSkill

Audit and enforce the core/client boundary in multi-client projects. Detects where shared platform code is tangled with client-specific code, finds hardcoded client checks, config files that replace…

1.1k +10 this week 26d ago ≈154 tokens always loaded Claude CodeSkills CLI Scanned
69popular
rampstackco/claude-skillsSkill

Run a comprehensive WCAG accessibility audit covering perceivable, operable, understandable, and robust principles. Use this skill whenever the user wants to audit accessibility, review WCAG…

976 +15 this week 16d ago ≈155 tokens always loaded Claude CodeSkills CLI Scanned
65popular
rampstackco/claude-skillsSkill

How to produce ad creative that converts at performance scale. Hook patterns, format selection, video pacing, variation systems, sequential testing methodology, fatigue detection, brand-voice…

976 +15 this week 16d ago ≈156 tokens always loaded Claude CodeSkills CLI Scanned
65popular
rampstackco/claude-skillsSkill

Design measurement frameworks including event taxonomy, KPI hierarchy, dashboard architecture, attribution models, and analytics implementation strategy. Use this skill whenever the user wants to…

976 +15 this week 16d ago ≈155 tokens always loaded Claude CodeSkills CLI Scanned
65popular
Bhanunamikaze/Agentic-SEO-SkillSkill

Deterministic LLM-first SEO audits for websites, blog posts, and GitHub

975 +12 this week 21d ago ≈19 tokens always loaded Claude CodeSkills CLI Scanned · 3 to know
80popular
suboss87/FDEOpsSkill

Audit an inherited engagement or implementation against its evidence. Use when taking over work or joining mid-project; distinguish verified facts from inherited claims.

970 +10 this week 26d ago ≈44 tokens always loaded Claude CodeSkills CLI Scanned
69popular