fullstack-guardian

Build security-focused full-stack web applications with layered frontend and backend protections.

Updated Jun 16, 2026
One-click install
npx skills add https://github.com/Design-System-ET/genexus-dev-opencode --skill fullstack-guardian-design-system-et
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: fullstack-guardian
Source: https://github.com/Design-System-ET/genexus-dev-opencode/tree/main/skills/fullstack-guardian
Command: npx skills add https://github.com/Design-System-ET/genexus-dev-opencode --skill fullstack-guardian-design-system-et

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill solves the challenge of maintaining security and architectural consistency across the entire development stack, preventing common vulnerabilities like SQL injection and XSS while ensuring frontend and backend components are perfectly aligned.

Core Features & Use Cases

  • Three-Perspective Design: Enforces a workflow that simultaneously addresses Frontend, Backend, and Security requirements for every feature.
  • Security-First Implementation: Provides a comprehensive checklist for authentication, authorization, input validation, and output encoding.
  • Use Case: When building a new authenticated user dashboard, use this Skill to generate a technical design that includes secure API endpoints, parameterized database queries, and a corresponding frontend component with robust error handling.

Quick Start

Invoke the fullstack-guardian skill to create a technical design document for a new authenticated user profile feature that includes frontend, backend, and security considerations.

Frequently Asked Questions about fullstack-guardian

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

FAQPage Schema
How do I build a full-stack TypeScript app with integrated frontend and backend security?

Build a full-stack TypeScript app with integrated security by enforcing a three-perspective workflow that simultaneously addresses frontend, backend, and security requirements for every feature. This ensures components are perfectly aligned and prevents vulnerabilities like SQL injection and XSS.

What's the best way to prevent XSS and SQL injection across my full-stack web application?

Prevent XSS and SQL injection across your full-stack app by enforcing layered security at every level, from database to UI. This includes implementing authentication, input validation, output encoding, and parameterized queries across all layers within a single implementation workflow.

How do I design a secure API endpoint with a corresponding frontend component?

Design a secure API endpoint with a corresponding frontend component by addressing frontend, backend, and security perspectives simultaneously. This workflow generates technical designs that include secure endpoints, parameterized database queries, and robust frontend error handling.

Does this approach support building secure microservices and authenticated user dashboards?

Yes, this approach supports building secure microservices and authenticated user dashboards by generating technical designs that cover the complete stack from database to UI, enforcing auth, input validation, and output encoding across all layers.

How do I maintain architectural consistency between frontend and backend components?

Maintain architectural consistency between frontend and backend components by using a single implementation workflow that addresses security and architecture at every level, ensuring all integrated components are perfectly aligned and preventing common vulnerabilities.

When do I need a security-first implementation workflow for full-stack development?

You need a security-first implementation workflow for full-stack development when building new authenticated features, APIs, or microservices, ensuring that auth, input validation, and parameterized queries are enforced across all layers from database to UI.