How does this skill help with architecture diagrams?

It uses the C4 model framework to help you define System Context, Container, and Component diagrams within your technical documentation using standardized notation.

Can it estimate cloud infrastructure costs?

Yes, it provides a structured approach to capacity planning, calculating server, database, and CDN requirements based on expected user traffic and data throughput.

Does it support Architecture Decision Records (ADRs)?

Absolutely; the skill emphasizes documenting the rationale behind design choices, helping teams maintain a clear history of architectural trade-offs and decisions.

Is this skill useful for technical interview preparation?

Yes, the skill follows industry-standard patterns and best practices used in high-level system design interviews at major technology companies.

System Design Architect

Name: System Design Architect
Author: spjoshis

byspjoshis

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API Development

Architects scalable, production-ready systems using C4 modeling, capacity planning, and rigorous trade-off analysis.

The System Design skill empowers developers and architects to build robust, enterprise-grade applications by providing structured frameworks for architecture visualization and decision-making. It guides users through the C4 model for multi-level diagramming, assists in detailed capacity planning—including traffic, storage, and cloud cost estimations—and facilitates objective trade-off analysis for critical technology choices. Whether you are refactoring a monolith or designing a high-traffic distributed system, this skill ensures best practices like loose coupling and fault tolerance are integrated into your development workflow.

Key Features

01C4 Model architecture diagramming (Context to Code levels)

02Detailed trade-off analysis for Monolith vs. Microservices

03Scalability planning for high-concurrency enterprise applications

04Automated capacity planning and infrastructure cost estimation

05Architecture Decision Record (ADR) generation and documentation

061 GitHub stars

Use Cases

01Modernizing legacy monolithic systems into scalable cloud-native services

02Preparing for technical system design interviews and architecture reviews

03Planning and documenting new microservices architectures

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add spjoshis/claude-code-plugins system-design

For use in Claude.ai and ChatGPT

Download Skill