One-click install
npx skills add https://github.com/TheCardGoat/lorcana-simulator --skill harden-thecardgoat
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: harden
Source: https://github.com/TheCardGoat/lorcana-simulator/tree/main/.agents/skills/harden
Command: npx skills add https://github.com/TheCardGoat/lorcana-simulator --skill harden-thecardgoat

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Strengthen designs and implementations against edge cases, user behavior that breaks assumptions, and production conditions that expose hidden failures.

Core Features & Use Cases

  • Edge-case and boundary testing: Validate empty states, extreme input sizes, and large datasets so the UI and logic don’t collapse under stress.
  • Error-handling hardening: Design recovery paths for network failures, API status codes, validation errors, and concurrent operations.
  • Internationalization and accessibility resilience: Ensure text expansion, RTL support, pluralization, and keyboard/screen-reader workflows remain correct across languages and environments.

Quick Start

Use the harden skill to generate a hardening test plan and concrete fixes for your component by focusing on extreme inputs, i18n, error states, and accessibility for the scenario you’re building.

Frequently Asked Questions about harden

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

FAQPage Schema
How do I harden software against edge cases and production failures?

Software hardening improves resilience by identifying weaknesses in edge cases, error handling, and real-world internationalization and accessibility conditions. It applies structured assessment across overflow, input validation, and dynamic content rendering to prevent production failures.

What is the best way to handle error states and API failures in UI components?

Error-handling hardening designs recovery paths for network failures, API status codes, validation errors, and concurrent operations. It ensures your UI maintains robust empty and loading states when fetch remote data operations encounter unexpected conditions.

How do I test internationalization and accessibility for dynamic content?

Internationalization and accessibility resilience verifies text expansion, RTL support, pluralization, and keyboard or screen-reader workflows remain correct across languages. It requires structured assessment of UI components rendering dynamic content under varying interaction methods.

Can I use software hardening for input validation and extreme input sizes?

Yes, edge-case and boundary testing validates empty states, extreme input sizes, and large datasets so the UI and logic do not collapse under stress. It applies input sanitization and overflow checks to components processing user input.

Does software hardening require automated testing for performance under slow connections?

Software hardening requires verification via both manual and automated testing. It assesses performance under slow connections and validates loading states to ensure system components handle network latency gracefully.

When should I not use a software hardening approach?

Software hardening is unnecessary for static prototypes or components without user input, remote data fetching, or internationalization requirements. It targets production readiness for UI and system components exposed to real-world edge cases and dynamic content.