write-tech-design-doc

What problem does it solve?

This skill helps engineers produce a complete and reasoned technical design document (TDD) that explains the rationale behind architectural decisions, boundaries, and non-functional considerations, reducing ambiguity and rework.

Core Features & Use Cases

• Step-by-step design workflow covering identification, context gathering, requirements, architecture, domain modeling, transactions, errors, concurrency, and documentation.
• Generates a structured TDD with decisions, alternatives, and rationale, suitable for feature development or system maintenance.
• Use Case: When starting a new feature, generate a TDD to capture design decisions, constraints, and testing strategies.

Quick Start

Provide a complete technical design document for the requested feature, including architecture decisions, domain model, and a concrete implementation plan.