Implements a feature or bug fix test-first: write one failing test, run it and watch it fail, write the minimal code to pass, then refactor with the tests green. Use when a change alters code behavior: a new feature, a bug fix, or a behavior change, whether the request comes alone or through delivery-flow.
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tessl review fix ./02-mutation/versions/current-stubbed/sdlc-implementation/skills/test-driven-development/SKILL.mdThe canonical home for this skill is delivery-flow in tesslio/tessl-eval-demo
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