Ported from oh-my-codex tdd. OMX runtime conventions ($macro invocation, omx CLI, .omx/ state directory) are replaced with WorkBuddy idioms (Skill tool, Agent tool, task list, .workbuddy/memory).

TDD — deprecated

Hard-deprecated as a standalone skill. Do not invoke or route this skill.

Keep test-first discipline inside the active implementation workflow (the plan skill and normal implementation flow). The discipline is the value; here it is for reference:

The Iron Law: NO PRODUCTION CODE WITHOUT A FAILING TEST FIRST. Write code before the test? Delete it and start over.

Red-Green-Refactor cycle:

RED — Write the next failing test; run it; it MUST fail. If it passes, the test is wrong.
GREEN — Write only enough code to pass. No extras. Run; it MUST pass.
REFACTOR — Improve quality; run tests after every change; must stay green.
REPEAT — Next failing test.

Enforcement: code-before-test → stop and write the test; test-passes-first → fix it to fail; multiple features per cycle → one test, one feature; skipping refactor → go back and clean up.

For durable multi-goal execution that should keep this discipline, use ultragoal; for the implementation workflow itself, use plan.