m05-type-driven

Name: m05-type-driven
Availability: InStock
Author: FlexiSuite

Guide type-driven design with newtypes, type states, and sealed traits.

1|Updated Nov 27, 2025

Search Tags:#type safety #design patterns #rust #type system #newtype #compile-time validation #type state

Ready to run

npx skills add https://github.com/flexisuite-org/FlexiSuite_Kernel --skill m05-type-driven-flexisuite-org

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: m05-type-driven
Source: https://github.com/flexisuite-org/FlexiSuite_Kernel/tree/main/.agents/skills/m05-type-driven
Command: npx skills add https://github.com/flexisuite-org/FlexiSuite_Kernel --skill m05-type-driven-flexisuite-org

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers leverage the type system to prevent invalid states and enforce constraints at compile time, reducing runtime errors and improving code robustness.

Core Features & Use Cases

Type Safety: Use patterns like newtypes and sealed traits to ensure data integrity.
Compile-time Validation: Design code where invalid states are unrepresentable.
Use Case: When building a state machine, use the type state pattern to ensure transitions only occur between valid states, preventing accidental misuse.

Quick Start

Use the m05-type-driven skill to understand how to use newtypes for better type safety.

Frequently Asked Questions about m05-type-driven

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

FAQPage Schema

How do I use the type state pattern in Rust to prevent invalid state transitions?▼

The type state pattern in Rust prevents invalid state transitions by encoding states as distinct types, ensuring that state machine transitions only occur between valid states at compile time. This eliminates accidental misuse.

What is the best way to make invalid states unrepresentable in Rust?▼

To make invalid states unrepresentable, apply type-driven design using newtypes, sealed traits, and Zero-Sized Types (ZSTs). This approach enforces data invariants directly within the type system for robust compile-time validation.

When should I use the newtype pattern for compile-time validation?▼

Use the newtype pattern for compile-time validation when you need to ensure data integrity by distinguishing primitive values. It wraps primitive types in distinct structs to prevent mixing incompatible data and enforce constraints.

How do PhantomData and marker traits improve type safety in Rust?▼

PhantomData and marker traits improve type safety by allowing you to encode compile-time constraints without runtime overhead. They act as logical markers to track ownership or type relationships within the type system.

Does the builder pattern work with sealed traits to enforce invariants?▼

Yes, the builder pattern combines with sealed traits to enforce invariants by ensuring only valid configurations can be constructed. Sealed traits restrict implementation to the defining crate, securing the builder's state transitions.