tdd-bug-fix

Reproduce software bugs with failing unit tests and apply minimal fixes.

114|8|Updated Mar 4, 2025
One-click install
npx skills add https://github.com/gustavscirulis/snapgrid --skill tdd-bug-fix-gustavscirulis
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tdd-bug-fix
Source: https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/testing/tdd-bug-fix
Command: npx skills add https://github.com/gustavscirulis/snapgrid --skill tdd-bug-fix-gustavscirulis

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill ensures bugs are fixed correctly and permanently by enforcing the Test-Driven Development (TDD) methodology for bug fixes, preventing future regressions.

Core Features & Use Cases

  • Reproduce Bugs: Write failing tests to definitively prove a bug exists.
  • Targeted Fixes: Apply minimal code changes to make tests pass.
  • Regression Prevention: The added test acts as a permanent safeguard against the bug recurring.
  • Use Case: When a user reports that a discount calculation is sometimes incorrect, this skill guides the process of writing a test that fails for that specific incorrect calculation, then fixing the code, and ensuring the test now passes and all other tests remain green.

Quick Start

Use the tdd-bug-fix skill to fix the bug by writing a failing test, then applying the fix.

Frequently Asked Questions about tdd-bug-fix

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

FAQPage Schema
How do I fix software bugs and prevent regressions using TDD?

Fix bugs using TDD by writing a failing unit test to reproduce the defect, applying minimal code changes to pass the test, and optionally refactoring while tests remain green to prevent regressions.

What is the best way to reproduce a reported bug before fixing it?

The best way to reproduce a bug is to write a dedicated failing unit test that definitively proves the defect exists, ensuring the issue is verifiable before applying any code changes to fix it.

How do I apply the red-green-refactor cycle to bug fixes?

Apply the red-green-refactor cycle by first writing a failing test for the bug, making minimal code changes to pass the test, and then refactoring the code while ensuring all tests remain passing.

Does writing tests for bug fixes permanently stop regressions?

Yes, writing a dedicated failing test for a bug fix permanently safeguards against regressions because the added test case continuously verifies the fix and prevents the defect from recurring.

Can I use this TDD bug fix approach without prior testing experience?

Using this TDD bug fix approach requires understanding the red-green-refactor cycle, but it guides you through writing failing unit tests and applying minimal code changes to pass them.

When should I not use TDD for bug fixes?

You should avoid TDD for bug fixes when you cannot isolate the defect into a reproducible unit test, as the methodology strictly relies on reproducing the bug with a failing test before altering code.