Which programming languages are supported by the TDD skill?

The skill currently provides optimized workflows and code snippets for TypeScript using the Bun runtime and Rust using Cargo.

Can I use this skill to fix existing bugs?

Yes, it includes a dedicated bug-fix workflow that starts by writing a failing test to reproduce the issue before implementing the fix.

What testing tools does it integrate with?

It integrates with Bun's native test runner and Stryker for TypeScript, as well as Cargo test, Tarpaulin for coverage, and Cargo Mutants for Rust.

How does the skill track development progress?

It utilizes the 'maintain-tasks' skill to advance through four specific stages: Red (writing failing tests), Green (implementing code), Refactor (improving code quality), and Verify (final checks).

Test-Driven Development (TDD)

Name: Test-Driven Development (TDD)
Author: outfitter-dev

byoutfitter-dev

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Security & Testing

Implements a disciplined Red-Green-Refactor workflow for TypeScript and Rust projects within Claude Code.

About

The TDD skill provides a rigorous framework for building software by writing tests before implementation, ensuring high code quality and behavior-driven design. It guides Claude through the standard Red-Green-Refactor cycle with specific tooling support for TypeScript/Bun and Rust, including automated stage tracking and performance metrics. By enforcing small, 5-15 minute cycles, it helps developers maintain momentum while building robust features, critical business logic, and reliable bug fixes with full regression coverage.

Key Features

Automated Red-Green-Refactor cycle management and tracking
Language-specific test patterns for TypeScript/Bun and Rust
Integrated bug-fix workflow utilizing failing test reproduction
Quality metric enforcement for line coverage and mutation scores
Standardized project organization for unit and integration tests
18 GitHub stars

Use Cases

Refactoring complex modules while ensuring behavior preservation
Developing critical business logic requiring high reliability and data integrity
Fixing production bugs with verifiable, test-first reproduction steps

About

Key Features

Automated Red-Green-Refactor cycle management and tracking
Language-specific test patterns for TypeScript/Bun and Rust
Integrated bug-fix workflow utilizing failing test reproduction
Quality metric enforcement for line coverage and mutation scores
Standardized project organization for unit and integration tests
18 GitHub stars

Use Cases

Refactoring complex modules while ensuring behavior preservation
Developing critical business logic requiring high reliability and data integrity
Fixing production bugs with verifiable, test-first reproduction steps