system-design-prep

Guide system design interview preparation with a 7-phase framework and pattern library.

1|Updated Mar 6, 2026

Search Tags:#scalability #system design #software architecture #trade-offs #interview prep #technical interview

Ready to run

npx skills add https://github.com/chavangorakh1999/sde-skills --skill system-design-prep

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: system-design-prep
Source: https://github.com/chavangorakh1999/sde-skills/tree/main/sde-career/skills/system-design-prep
Command: npx skills add https://github.com/chavangorakh1999/sde-skills --skill system-design-prep

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps users prepare for system design interviews by providing a structured framework, common patterns, and guidance on discussing trade-offs.

Core Features & Use Cases

7-Phase Framework: Guides users through clarifying requirements, estimating scale, designing APIs, high-level and deep-dive design, bottleneck identification, and wrap-up.
Pattern Library: Offers explanations of common system design patterns like read-heavy, write-heavy, fan-out, and rate limiting.
Trade-off Discussion: Teaches how to articulate the pros and cons of different technical choices.
Use Case: A software engineer preparing for a senior role interview can use this Skill to practice walking through a system design problem, ensuring they cover all critical aspects and communicate their thought process effectively.

Quick Start

Use the system-design-prep skill to prepare for a system design interview for a URL shortener.

Frequently Asked Questions about system-design-prep

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

FAQPage Schema

How do I structure my system design interview preparation?▼

System design interview preparation requires a structured 7-phase framework: clarifying requirements, estimating scale, designing APIs, high-level and deep-dive design, bottleneck identification, and wrap-up to effectively communicate your technical thought process.

What are the most common system design patterns for technical interviews?▼

Common system design patterns include read-heavy, write-heavy, fan-out, and rate limiting architectures. Understanding these patterns helps you quickly identify the appropriate structural solutions for scalability and software architecture problems during technical interviews.

How do I discuss trade-offs in a software architecture interview?▼

Discussing trade-offs in a software architecture interview involves articulating the pros and cons of different technical choices. Use bottleneck analysis and capacity estimation data to justify your scalability decisions and demonstrate balanced engineering judgment.

Do I need to know capacity estimation for system design interviews?▼

Yes, capacity estimation is a mandatory phase for system design interviews. Estimating scale, traffic, and storage requirements early ensures your high-level design and component architecture can handle expected loads and identifies potential bottlenecks.

How do I practice system design problems for a senior role interview?▼

Practice system design problems by walking through scenarios like a URL shortener using a 7-phase framework. Cover requirement clarification, API modeling, high-level design, deep-dive components, bottleneck analysis, and trade-off discussions to simulate real senior role interview conditions.

What interviewer signals should I look for during a system design interview?▼

Look for interviewer signals prompting deeper component design, bottleneck analysis, or trade-off discussions. Recognizing these cues helps you pivot from high-level architecture to detailed scalability analysis, ensuring you address the specific software architecture aspects the interviewer evaluates.