Can I use this for bug fixing?

Yes, the skill includes a specific workflow for bug fixes: starting with a failing test to reproduce the issue before implementing the fix.

Does it work with existing test suites?

Absolutely. For projects with existing tests, the workflow can start at the Refactor stage after confirming that all current tests pass.

What programming languages does this TDD skill support?

The TDD Field Guide is specifically optimized for TypeScript (using the Bun runtime) and Rust, providing specific code patterns and CLI commands for both.

What quality metrics does this skill enforce?

It targets at least 80% line coverage (90% for critical paths) and a mutation score of 75% or higher to ensure test effectiveness.

How does Claude track the TDD stages?

The skill integrates with the 'maintain-tasks' capability to create and advance through Red, Green, Refactor, and Verify stages as the session progresses.

TDD Field Guide

Name: TDD Field Guide
Author: outfitter-dev

byoutfitter-dev

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보안 및 테스팅

Implements disciplined Red-Green-Refactor cycles for TypeScript and Rust development using standardized TDD methodologies.

The TDD Field Guide skill equips Claude with a structured workflow for Test-Driven Development, ensuring high code quality and reliability from the first line of code. By enforcing strict Red-Green-Refactor stages, the skill guides developers through writing failing tests first, implementing minimal passing code, and systematically refactoring for optimal design. It provides domain-specific patterns for Bun-based TypeScript and Rust environments, including support for API design, bug fixes, and complex business logic, all while tracking progress via integrated task management and quality metrics like mutation scores.

주요 기능

01Defined quality targets for line coverage and mutation testing

02Strict Red-Green-Refactor cycle enforcement with stage tracking

032 GitHub stars

04Automated task formatting for TDD workflow transparency

05Standardized project organization and test co-location patterns

06Multi-language support for TypeScript (Bun) and Rust tooling

사용 사례

01Reproducing and fixing bugs by starting with a failing test case

02Implementing new features with behavior-first test coverage

03Safely refactoring complex business logic while preserving behavior

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add outfitter-dev/outfitter tdd-fieldguide

For use in Claude.ai and ChatGPT

Download Skill