web-security

Identify and remediate web security vulnerabilities across frontend, backend, APIs, and deployment pipelines.

Updated Feb 4, 2026
One-click install
npx skills add https://github.com/logistics00/Claude_Code --skill web-security-logistics00
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: web-security
Source: https://github.com/logistics00/Claude_Code/tree/main/.claude/skills/web-security
Command: npx skills add https://github.com/logistics00/Claude_Code --skill web-security-logistics00

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

We treat web security as a core requirement, not an afterthought. Assume hostile input and untrusted environments by default.

Core Features & Use Cases

  • Principled security posture: Enforces never trust user input, validates and sanitizes at boundaries, and prefers secure defaults.
  • Mitigation guidance: Provides guidance for preventing XSS, injection, improper authentication, and data leakage across web apps, APIs, and services.
  • Compliance and governance: Supports CSP, CORS, and secure cookie usage, while advising on dependency management and supply chain risk.
  • Use cases include secure design reviews, code audits, threat modeling sessions, and incident response playbooks.

Quick Start

Audit your web app for common security issues and implement the recommended mitigations.

Frequently Asked Questions about web-security

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

FAQPage Schema
How do I prevent XSS and injection vulnerabilities during a web app code audit?

To prevent XSS and injection vulnerabilities during a web app code audit, enforce strict input validation and sanitization at trust boundaries. Apply secure defaults and adhere to CSP policies to actively minimize the application's attack surface.

What is the best way to configure CSP and CORS for secure session management?

The best way to configure CSP and CORS for secure session management is to enforce strict content security policies and proper cross-origin resource sharing rules. This approach prevents data leakage and ensures secure cookie usage across web applications and APIs.

How does input validation mitigate web security risks in frontend and backend APIs?

Input validation mitigates web security risks in frontend and backend APIs by treating all user input as hostile by default. Validating and sanitizing data at boundaries prevents improper authentication, data leakage, and injection attacks across services.

Can I use this approach for threat modeling and incident response in deployment pipelines?

Yes, you can apply this approach for threat modeling and incident response in deployment pipelines. It supports secure design reviews and code audits while advising on dependency management and supply chain risk across your deployment lifecycle.

What are the limitations of relying on secure defaults for authorization and authentication?

Relying solely on secure defaults for authorization and authentication can leave gaps if custom application logic bypasses boundaries. You must continuously validate session management and enforce strict policies to mitigate evolving attack vectors.