securing-applications

Secure FastAPI and Next.js apps with headers, CSP, LLM safeguards, and dependency scanning.

Updated Dec 17, 2025
One-click install
npx skills add https://github.com/ionmidori/SYDBioedilizia --skill securing-applications-ionmidori
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: securing-applications
Source: https://github.com/ionmidori/SYDBioedilizia/tree/main/.gemini/skills/securing-applications
Command: npx skills add https://github.com/ionmidori/SYDBioedilizia --skill securing-applications-ionmidori

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the critical need for robust security in modern web applications, protecting against common vulnerabilities and emerging threats in AI-driven systems.

Core Features & Use Cases

  • Web Security: Implement essential security headers and Content Security Policy (CSP) for FastAPI and Next.js.
  • LLM Security: Mitigate prompt injection and validate LLM outputs to prevent malicious AI behavior.
  • Supply Chain Security: Ensure the integrity of your project's dependencies.
  • Use Case: A developer needs to harden their new FastAPI backend and Next.js frontend against common web attacks and ensure their integrated LLM agent is safe from prompt injection before deploying to production.

Quick Start

Apply the securing-applications skill to implement secure headers and CSP for your FastAPI and Next.js applications.

Frequently Asked Questions about securing-applications

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

FAQPage Schema
How do I implement secure headers and CSP in FastAPI and Next.js?

To mitigate prompt injection in LLM agents, apply targeted security measures that validate LLM outputs and sanitize inputs. This prevents malicious AI behavior by enforcing strict validation rules on integrated LLM agent responses before production deployment.

What is the best way to secure a full-stack application against OWASP Top 10 vulnerabilities?

Securing a full-stack application against OWASP Top 10 vulnerabilities involves implementing enterprise-grade security standards. This includes configuring secure headers, enforcing CSP, and scanning dependencies to ensure production deployments resist common web attacks.

Does this security guidance cover supply chain vulnerabilities and dependency scanning?

Yes, this security guidance covers supply chain vulnerabilities through dependency scanning. It ensures the integrity of your project's dependencies, protecting FastAPI and Next.js applications from compromised external packages in production environments.

Can I use this to harden my FastAPI backend before production deployment?

Yes, you can use this to harden your FastAPI backend before production deployment. It addresses enterprise-grade security standards, providing comprehensive guidance on implementing secure headers and mitigating common web vulnerabilities for production-ready applications.

Why does my Next.js application need Content Security Policy implementation?

Your Next.js application needs Content Security Policy implementation to prevent cross-site scripting and data injection attacks. CSP adds a robust security layer by defining approved content sources, ensuring enterprise-grade protection for production deployments.