Hardened Outline-Driven Development FAQs

Question 1

Which validation layers are supported?

Accepted Answer

It orchestrates five distinct layers: Proof (formal logic), Specification (behavioral design), Type Checking (static analysis), Contracts (runtime assertions), and Tests (functional verification), plus a Layer 0 for static compile-time assertions.

Question 2

What is the Hardened Outline-Driven Development skill?

Accepted Answer

It is a specialized capability for Claude Code that automates a rigorous 5-layer validation pipeline (Proof, Spec, Type, Contract, and Test). It ensures that software development follows a structured 'PLAN -> CREATE -> EXECUTE -> REPORT' workflow for maximum reliability.

Question 3

Can I customize the validation order?

Accepted Answer

Yes. While the default follows a formal-first approach (Proof > Spec > Type > Contract > Test), you can override this via CLI flags, environment variables, or a configuration file to prioritize fast feedback or specific project requirements.

Question 4

When should I use this skill in my workflow?

Accepted Answer

This skill is ideal for projects requiring high assurance and correctness, such as financial systems, security-critical applications, or complex CI/CD pipelines. Use it when you need to coordinate multiple verification tools like Lean 4, Quint, and standard test frameworks.

Question 5

How does the gating mechanism improve development?

Accepted Answer

The skill employs strict gating where failures in upstream layers (like a formal proof) prevent the execution of downstream layers (like unit tests). This 'stop-on-fail' approach saves resources and ensures you aren't testing code that is fundamentally flawed at the design or type level.

Hardened Outline-Driven Development

Hardened Outline-Driven Development

About

Key Features

Use Cases

About

Key Features

Use Cases