Vertical-slice TDD for any production code. One test → one impl → repeat. Tests verify behavior through public interfaces, not internals. Use when implementing any feature, bugfix, or behavior change.
$npx -y skills add evanklem/evanflow --skill evanflow-tddInstalls into the current project.
Run `npx skills use "https://github.com/evanklem/evanflow" --skill "evanklem/evanflow/evanflow-tdd"` 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/evanklem/evanflow" that are relevant to the current task. Run `npx skills add "https://github.com/evanklem/evanflow"` and select the relevant skills, then follow their instructions.