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aspnetcore-security

Implement authentication, authorization, and security patterns in ASP.NET Core applications.

Updated Aug 23, 2026
Search Tags:#authorization#security#authentication#jwt#validation#secrets management#asp.net core
One-click install
npx skills add https://github.com/digitalhand/claude-skills-agents --skill aspnetcore-security
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: aspnetcore-security
Source: https://github.com/digitalhand/claude-skills-agents/tree/main/skills/aspnetcore-security
Command: npx skills add https://github.com/digitalhand/claude-skills-agents --skill aspnetcore-security

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides comprehensive guidance and code examples for implementing robust security measures in ASP.NET Core applications, protecting against common vulnerabilities.

Core Features & Use Cases

  • Authentication & Authorization: Implement JWT bearer authentication and policy-based/claims-based authorization.
  • Input Validation: Securely handle user input using Data Annotations or FluentValidation, and prevent XSS attacks.
  • Data Protection: Prevent SQL injection and CSRF attacks, and manage secrets effectively using Azure Key Vault or user secrets.
  • Security Headers & CORS: Configure essential security headers and manage Cross-Origin Resource Sharing policies.
  • Rate Limiting: Implement rate limiting to protect against abuse.
  • Dependency Scanning: Ensure your project is free from known vulnerabilities.
  • Use Case: When deploying an ASP.NET Core application, use this Skill to ensure all security best practices are implemented, from authentication to secure secret management and dependency checks.

Quick Start

Implement JWT bearer authentication in your ASP.NET Core application by adding the provided Program.cs configuration.

Frequently Asked Questions about aspnetcore-security

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I implement JWT authentication in an ASP.NET Core application?▼

To implement JWT bearer authentication in an ASP.NET Core application, you configure the authentication middleware and JWT bearer options within your Program.cs file. This establishes secure token validation for incoming requests.

What is the best way to prevent SQL injection in ASP.NET Core?▼

Preventing SQL injection in ASP.NET Core involves adopting secure data access patterns and robust input validation. The Skill provides guidance on configuring Data Annotations or FluentValidation alongside secure database query practices to block malicious input.

How do I configure CORS and security headers for an ASP.NET Core API?▼

Configuring CORS and security headers in an ASP.NET Core API requires defining Cross-Origin Resource Sharing policies and adding essential HTTP response headers. This mitigates common web vulnerabilities and controls resource sharing.

Can I use FluentValidation for input validation and XSS prevention in ASP.NET Core?▼

Yes, you can use FluentValidation or Data Annotations to securely handle user input and prevent XSS attacks in ASP.NET Core. The Skill provides code examples for implementing these validation strategies effectively.

Do I need Azure Key Vault for secrets management in ASP.NET Core?▼

Azure Key Vault is a supported option for secrets management in ASP.NET Core, but you can also utilize user secrets depending on your environment. The Skill guides you through configuring both approaches for production readiness.

How do I set up policy-based authorization and rate limiting in ASP.NET Core?▼

Setting up policy-based authorization and rate limiting in ASP.NET Core involves defining authorization policies with claims and configuring rate limiting middleware. This protects your application endpoints against unauthorized access and abuse.

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