Shape Flow

Layer 2: Data Shapes in Motion

An interactive demonstration from the 9-Layer Mind Stack

What You'll Learn

1

API Validation

How to validate external data with Zod and transform it into your internal shape at the API boundary

2

Server/Client Serialization

Why Date objects break Next.js and how to properly serialize data across the Server/Client boundary

3

Form Input Validation

How to validate user input in Server Actions before executing any business logic

✅ Working Example

See how proper data transformations create robust, error-free applications

❌ Broken Example

Toggle to see common mistakes and understand why they fail

🔍 Inspector Tool

Visualize data transformations in real-time as they happen

📚 Code Examples

Copy-paste ready patterns with detailed explanations

View Demo

Part of the 9-Layer Mind Stack