Enforce RED → GREEN → REFACTOR. Write a failing test before any production code; make it pass with the minimum change; then refactor. Refuses to start with a broken baseline.
$npx -y skills add ethosagent/ethos --skill tddInstalls into the current project.
Run `npx skills use "https://github.com/ethosagent/ethos" --skill "ethosagent/ethos/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/ethosagent/ethos" that are relevant to the current task. Run `npx skills add "https://github.com/ethosagent/ethos"` and select the relevant skills, then follow their instructions.