Designing Systems

designing-systems

Design scalable, reliable software systems. Use when planning new systems, major features, or architecture changes. Covers C4 diagrams, trade-off analysis, and system decomposition.

majiayu000/claude-skill-registry·0installs663starsDevOps & CI/CD

SKILL.md

Full skill instructions

Designing Systems

Workflows

Requirements: Gather functional and non-functional requirements
Diagrams: Create C4 diagrams (Context, Container)
Data: Define data model and storage strategy
API: Define interfaces and contracts
Risks: Identify single points of failure
Document: Save to ./artifacts/adr_[topic].md

Feedback Loops

Draft design document
Review with stakeholders
Create POC for risky components
Refine design based on POC
Finalize ADR

Blueprint Template

Every system design should include:

High-Level Diagram: Mermaid graph showing components
Component Boundaries: Clear responsibility definitions
API Definitions: OpenAPI or GraphQL specs
Data Models: Schema definitions
Trade-off Analysis: Rationale for key decisions

C4 Model Levels

Level 1: Context

Who uses the system? What external systems does it interact with?

Level 2: Container

What are the major deployable units? (APIs, databases, queues)

Level 3: Component

What are the major building blocks within each container?

Level 4: Code

Class/function level (usually not needed in architecture docs)

Trade-off Analysis

For major decisions, explicitly document:

Decision	Option A	Option B
Pros	...	...
Cons	...	...
When to Choose	...	...

Non-Functional Requirements

Always consider:

Scalability: Expected load, growth rate
Availability: SLA targets, failure modes
Latency: P50, P95, P99 requirements
Security: Authentication, authorization, data protection
Cost: Infrastructure, operational overhead

Resources

Install skill

Copy and run in your terminal

npx -y skills add https://github.com/majiayu000/claude-skill-registry --skill designing-systems-dralgorhythm-claude-agentic-frame

View on GitHub

skills/data/designing-systems-dralgorhythm-claude-agentic-frame/SKILL.md

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