practicing-tdd

Enforce the Test-Driven Development cycle with mandatory failing tests before implementation.

4|1|Updated Oct 29, 2025

Search Tags:#code quality #testing #tdd #debugging #development workflow #refactoring

Ready to run

npx skills add https://github.com/bacchus-labs/wrangler --skill practicing-tdd-bacchus-labs

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: practicing-tdd
Source: https://github.com/bacchus-labs/wrangler/tree/main/skills/practicing-tdd
Command: npx skills add https://github.com/bacchus-labs/wrangler --skill practicing-tdd-bacchus-labs

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) and assets (resource) components.

What problem does it solve?

This Skill enforces Test-Driven Development (TDD) to ensure code quality by mandating that tests are written and observed to fail before any implementation code is written.

Core Features & Use Cases

Mandatory Test-First: Guarantees that tests are written and verified to fail before implementation.
Red-Green-Refactor Cycle: Guides users through the TDD cycle with strict verification steps.
Use Case: When developing a new feature, this Skill ensures you write a test that fails, then write the minimal code to pass it, and finally refactor, preventing bugs and ensuring testability from the outset.

Quick Start

Follow the TDD workflow to implement new code, starting with writing a failing test.

Frequently Asked Questions about practicing-tdd

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

FAQPage Schema

How does test-driven development prevent bugs in new code?▼

Test-driven development prevents bugs by requiring you to write and verify a failing test before writing any implementation code. This ensures code is verifiable and testable from the outset, guiding you through the Red-Green-Refactor cycle.

How do I start writing code using the Red-Green-Refactor cycle?▼

To start the Red-Green-Refactor cycle, write a failing test first. Then, write the minimal implementation code required to make that test pass. Finally, refactor the code for quality while ensuring the test continues to succeed.

What is the best way to enforce a test-first workflow in software engineering?▼

The best way to enforce a test-first workflow is using a development process that mandates evidence submission for test failures and successes. This guarantees tests are written and observed to fail before any implementation code is created.

Do I need to submit test results when refactoring code?▼

Yes, you must submit test results when refactoring code. The workflow requires mandatory evidence submission for both test failures and successes throughout the entire Red-Green-Refactor cycle to ensure continuous verification.

Can I use this TDD workflow for any software development task?▼

Yes, you can use this TDD workflow for any software development task requiring robust, verifiable code. It is broadly applicable to all development tasks, ensuring code quality and preventing bugs across different contexts.

When should I not use a strict test-first development approach?▼

A strict test-first development approach may not suit exploratory programming or rapid prototyping where requirements are highly unstable. It is designed for tasks requiring robust, verifiable code and strict quality enforcement from the outset.