typescript-security

Validate user input, hash passwords, and implement JWT authentication in TypeScript.

Updated Jun 25, 2026

Search Tags:#typescript #security #authentication #input validation #xss prevention

Ready to run

npx skills add https://github.com/VSF-QC-TTS/vf-qc-copilot --skill typescript-security-vsf-qc-tts

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: typescript-security
Source: https://github.com/VSF-QC-TTS/vf-qc-copilot/tree/main/.agents/skills/typescript/typescript-security
Command: npx skills add https://github.com/VSF-QC-TTS/vf-qc-copilot --skill typescript-security-vsf-qc-tts

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires zod, dompurify, argon2id, jsonwebtoken, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps developers secure their TypeScript applications by validating input, securing authentication tokens, and preventing injection attacks.

Core Features & Use Cases

Input Validation: Validates user input to prevent SQL injection and XSS attacks.
Authentication: Implements secure password hashing and JWT authentication.
XSS Prevention: Sanitizes HTML to prevent Cross-Site Scripting.
Use Case: Use this Skill in a web application to ensure that user input is safely handled and to protect against common security vulnerabilities.

Quick Start

Run the TypeScript Security Skill on your project to automatically validate inputs and secure your authentication tokens.

Frequently Asked Questions about typescript-security

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

FAQPage Schema

How do I validate user input in TypeScript to prevent SQL injection and XSS attacks?▼

You can validate user input in TypeScript using Zod to enforce schema constraints, which prevents SQL injection and XSS attacks by ensuring only sanitized, correctly typed data enters your application logic.

What is the best way to implement secure password hashing and JWT authentication in TypeScript?▼

The best way to implement secure authentication is using Argon2id for password hashing and jsonwebtoken for JWT authentication, ensuring tokens are securely signed and passwords are resistant to brute-force attacks.

How does DOMPurify prevent Cross-Site Scripting in TypeScript web applications?▼

DOMPurify prevents Cross-Site Scripting by sanitizing HTML inputs, stripping malicious scripts and unsafe tags before rendering, ensuring that user-provided content remains static text within the DOM.

Do I need Zod and DOMPurify to secure my TypeScript application?▼

Yes, you need Zod and DOMPurify to secure your application, as Zod handles structural input validation to prevent command injection, while DOMPurify specifically sanitizes HTML to block XSS vulnerabilities.

Can I use this approach to prevent command injection alongside XSS in my web app?▼

Yes, you can prevent command injection alongside XSS by applying strict input validation with Zod to reject malformed shell commands, combined with DOMPurify to sanitize any HTML rendered to the client.