design-core

Guide system design with decomposition protocols and architecture decision trees.

Updated Feb 19, 2026
One-click install
npx skills add https://github.com/kunallimaye/lib-agents --skill design-core
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: design-core
Source: https://github.com/kunallimaye/lib-agents/tree/main/skills/design-core
Command: npx skills add https://github.com/kunallimaye/lib-agents --skill design-core

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a foundational understanding of system design principles, helping users make better architectural decisions and avoid common pitfalls.

Core Features & Use Cases

  • First-Principles Decomposition: Breaks down complex system design problems into manageable, atomic components.
  • Mental Models & Principles: Offers established frameworks and guiding principles for robust system design.
  • Architecture Decision Trees: Provides guidance on selecting appropriate data stores, communication patterns, and deployment topologies.
  • Design Review Checklist: Equips users with a structured checklist to evaluate the quality of system designs.
  • Anti-Pattern Identification: Highlights common design mistakes and suggests better alternatives.
  • Use Case: When starting a new project, use this Skill to establish a solid architectural foundation by decomposing the problem, understanding trade-offs, and selecting appropriate technologies before diving into implementation.

Quick Start

Decompose the system design problem for a real-time chat application using first principles.

Frequently Asked Questions about design-core

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

FAQPage Schema
How do I decompose a complex system design problem using first principles?

First-principles decomposition breaks complex system design problems into manageable, atomic components to establish a solid architectural foundation. This approach helps you understand fundamental trade-offs and select appropriate technologies before implementation.

What are common system design anti-patterns and how do I avoid them?

System design anti-patterns are common architectural mistakes that undermine scalability and robustness. Identifying them early through structured design review checklists helps you replace flawed patterns with better, established alternatives.

How do I choose the right data store and communication patterns for scalable architecture?

Choosing the right data store and communication patterns for scalable architecture requires using architecture decision trees. These decision frameworks guide you through evaluating trade-offs to select appropriate data stores and communication topologies.

What should be included in a system design review checklist?

A system design review checklist should include structural criteria to evaluate architectural quality, decomposition protocols, and anti-pattern identification. It provides a structured framework to validate that your design supports robust and scalable system architectures.

When do I need to establish a system architecture foundation before starting implementation?

You need to establish a system architecture foundation before starting implementation when beginning a new project. Applying foundational knowledge and mental models early ensures you make better architectural decisions and avoid common pitfalls.

What mental models help with making better architectural decisions?

Mental models that help with architectural decisions include first-principles thinking, evolution stages, and decision frameworks. These established frameworks provide guiding principles for robust system design and evaluating trade-offs.