# M07-L04 exercise

Starting checkpoint: CP08. Figures: SS16-01, SS16-02, SS16-03.

Run defect, clean, and unrelated review cases with actual evidence. Use CP08 for skill discovery and the bundle's CP07→FAULT-stale diff for the supplied defect. Write a concise handoff for the negative-infinity test task. Submit the skill version, prompts, results, and handoff. A static lint is not a skill behavior pass.

Record source identity, changed files, exact commands, actual outcomes, and open limitations. Preserve the original exercise copy and review the final diff. Expected results are criteria, not evidence of execution.