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Implementing FIDO2 WebAuthn Authentication Server

implementing-hardware-security-key-authentication

mukul975/Anthropic-Cybersecurity-Skills

A comprehensive guide for building a FIDO2/WebAuthn relying party server using python-fido2. This skill covers the entire lifecycle of passwordless authentication, including secure credential registration (enrollment of hardware keys like YubiKey and resident passkeys) and robust authentication ceremonies. It is essential for migrating traditional password-based systems to phishing-resistant Multi-Factor Authentication (MFA).

Find and Install Agent Skills

CherryHQ/cherry-studio

This skill helps discover and install capabilities from the open agent skills ecosystem. When users ask for help with tasks like web development, testing, or deployment, this skill searches the marketplace, verifies quality based on install counts and reputation, and installs skills into Cherry's managed library with proper security warnings before installation.

Security Hardening Practices

security-and-hardening

addyosmani/agent-skills

Security-first development practices for web applications. Covers threat modeling with STRIDE, OWASP Top Ten defenses, input validation, parameterized queries, authentication and session hardening, security headers, dependency auditing, and supply-chain risk assessment.

Pentest Command Reference

pentest-commands

zebbern/claude-code-guide

Provides quick reference to penetration testing commands for network scanning, exploitation, password cracking, and web testing workflows, helping security professionals run tools like Nmap, Metasploit, Nikto, and SQLMap during assessments.

Salesforce Component Standards

salesforce-component-standards

github/awesome-copilot

Defines Salesforce Lightning Web Component, Aura, and Visualforce quality/security standards covering SLDS 2 styling, accessibility (WCAG 2.1 AA), data access patterns, component communication rules, XSS/CSRF protections, view state management, and Jest testing requirements for guided UI development and reviews.

Technical SEO Audit and Performance Check

sickn33/antigravity-awesome-skills

Comprehensive audit covering all aspects of web technical SEO, including crawlability (robots.txt, sitemaps), indexability, security headers, and URL structure. It deeply analyzes Core Web Vitals (LCP, INP, CLS) and assesses complex rendering scenarios like JavaScript SEO and structured data implementation for optimal search engine visibility.

Web Coding Mastery

github/awesome-copilot

Transforms you into a 10x web engineer, guiding work across HTML, CSS, JavaScript, web APIs, HTTP/HTTPS, security, performance, accessibility, and infrastructure so you can deliver standards-compliant, high-quality front- and back-end solutions.

Adobe Security Best Practices Guide

adobe-security-basics

jeremylongshore/claude-code-plugins-plus-skills

This comprehensive guide outlines essential security best practices for integrating with Adobe APIs. It covers securing OAuth credentials, implementing least-privilege scoping, managing zero-downtime credential rotation, and verifying I/O Events webhook signatures using cryptographic methods like RSA-SHA256. Essential for building secure, production-ready applications connected to Adobe services.

Best Practices for Apify Security

apify-security-basics

jeremylongshore/claude-code-plugins-plus-skills

This comprehensive guide outlines essential security best practices for users operating within the Apify ecosystem. Learn how to properly manage API tokens, implement environment separation (dev/staging/prod), secure proxy credentials, and sanitize sensitive data (PII) before storage. Essential for hardening data pipelines and ensuring compliance.

Attio API Security Best Practices

attio-security-basics

jeremylongshore/claude-code-plugins-plus-skills

This guide provides essential security controls for integrating with the Attio REST API. It details best practices for managing API tokens, including applying least-privilege scopes, implementing secure secret management across various platforms (AWS, Vercel, etc.), executing proper token rotation, and validating webhook signatures to prevent common security vulnerabilities.

Canva Production Deployment Checklist

canva-prod-checklist

jeremylongshore/claude-code-plugins-plus-skills

Provides a comprehensive checklist for deploying Canva Connect API integrations to a production environment. It covers critical aspects like OAuth configuration, robust security measures (e.g., JWK signature verification, least privilege), rate limit handling, error response management, and final production readiness verification, ensuring a smooth and secure launch.

Canva API Security Best Practices

canva-security-basics

jeremylongshore/claude-code-plugins-plus-skills

This guide details essential security best practices for integrating with the Canva Connect API. It covers securing OAuth 2.0 tokens, implementing least-privilege scopes, ensuring secure token storage (encryption and server-side handling), and verifying webhook signatures using JWK. Essential for building robust and secure Canva integrations.

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