What is the SDD implementation workflow?

The SDD (Specification-Driven Development) implementation workflow is a structured process that moves from specification loading to TDD cycles, SOLID principle application, and final security verification.

How does this skill handle security?

It includes a mandatory checklist based on the OWASP Top 10, covering critical areas like injection, broken access control, and cryptographic failures.

Does it require specific test coverage?

Yes, the skill defines a 'Definition of Done' that requires a minimum of 80% test coverage before an implementation is considered complete.

Which design principles are supported?

The skill focuses on SOLID principles (Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion) to ensure code maintainability.

How does the TDD cycle work within this skill?

It follows the Red-Green-Refactor pattern: write a failing test first (Red), write minimal code to pass (Green), and then clean up the implementation (Refactor).

SDD Implementation & TDD Guide

Name: SDD Implementation & TDD Guide
Author: yi-john-huang

byyi-john-huang

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Security & Testing

Implements software features using TDD methodology, SOLID principles, and OWASP security standards within an SDD workflow.

This skill streamlines the development phase of the Specification-Driven Development (SDD) workflow by enforcing strict TDD cycles and architectural best practices. It guides Claude through a structured implementation process—from loading context from specification files to executing Red-Green-Refactor cycles and verifying code against the OWASP Top 10 security checklist. By prioritizing SOLID design principles and high test coverage, it ensures that generated code is not only functional but also secure, maintainable, and production-ready.

Key Features

012 GitHub stars

02Comprehensive OWASP Top 10 security verification checklist

03Guided TDD cycles (Red-Green-Refactor) for disciplined feature development

04Strict enforcement of SOLID principles for robust software architecture

05Automated validation of test coverage and code quality standards

06Integration with SDD-specific MCP tools for status and quality checks

Use Cases

01Implementing complex features based on pre-defined design specifications

02Refactoring existing codebases to meet modern security and quality standards

03Onboarding new developers to a standardized, test-driven development workflow

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add yi-john-huang/acmg-amp-classifier-mcp sdd-implement

For use in Claude.ai and ChatGPT

Key Features

012 GitHub stars

02Comprehensive OWASP Top 10 security verification checklist

03Guided TDD cycles (Red-Green-Refactor) for disciplined feature development

04Strict enforcement of SOLID principles for robust software architecture

05Automated validation of test coverage and code quality standards

06Integration with SDD-specific MCP tools for status and quality checks

Use Cases

01Implementing complex features based on pre-defined design specifications

02Refactoring existing codebases to meet modern security and quality standards

03Onboarding new developers to a standardized, test-driven development workflow

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add yi-john-huang/acmg-amp-classifier-mcp sdd-implement

For use in Claude.ai and ChatGPT