How does this skill help with system design interviews?

It provides a timed, structured framework covering requirements, high-level design, deep dives, and wrap-ups to ensure you cover all critical evaluation criteria during a 45-60 minute session.

Can I use this for real-world architectural planning?

Yes, while optimized for interviews, the methodology is highly effective for structuring any architectural discussion, documenting design decisions, or leading whiteboard sessions with engineering teams.

Does it include help with capacity estimation?

Yes, the skill includes guidance for back-of-envelope calculations to estimate requests per second, storage requirements, and bandwidth based on user scale.

What are the four steps included in the methodology?

The framework consists of: 1. Requirements Gathering (5-10m), 2. High-Level Design (10-15m), 3. Deep Dive (15-20m), and 4. Wrap-up (5-10m).

System Design Interview Framework

Name: System Design Interview Framework
Author: melodic-software

bymelodic-software

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Learning & Documentation

Provides a structured 4-step methodology for tackling system design interviews and architectural whiteboard sessions.

This skill equips Claude with a comprehensive framework for navigating complex system design interviews and technical discussions. It guides users through a proven 4-step process—requirements gathering, high-level design, deep-dive analysis, and final wrap-up—ensuring that critical architectural aspects like scalability, availability, and trade-offs are systematically addressed. Ideal for candidates preparing for FAANG-style interviews or senior engineers leading architectural reviews, it provides the scaffolding needed to demonstrate structured thinking and technical depth.

Key Features

0112 GitHub stars

02Detailed requirements checklist for functional and non-functional requirements

03Guided component selection for load balancers, databases, caches, and queues

04Structured 4-step framework covering requirements, HLD, deep dives, and wrap-ups

05Trade-off analysis patterns to identify bottlenecks and scaling limitations

06Back-of-envelope estimation templates for capacity and storage planning

Use Cases

01Structuring professional whiteboard sessions and architectural discussions with stakeholders

02Preparing for technical system design interviews at major technology companies

03Practicing system design exercises with AI-guided feedback and critique

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add melodic-software/claude-code-plugins design-interview-methodology

For use in Claude.ai and ChatGPT

Download Skill