Enforces the RED-GREEN-REFACTOR cycle: write failing test, make it pass, improve design. Use when writing production code, when the user mentions TDD, test-first, or wants verified behavior.
$npx -y skills add madappgang/magus --skill test-driven-developmentInstalls into the current project.
Run `npx skills use "https://github.com/madappgang/magus" --skill "madappgang/magus/test-driven-development"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/madappgang/magus" that are relevant to the current task. Run `npx skills add "https://github.com/madappgang/magus"` and select the relevant skills, then follow their instructions.