5 bite-sized tasks: SKILL.md measurement half (L1-L2) + decision half (L3-L4/verdict), gsc_signal_delta.py helper with TDD tests, marketplace registration + spec-layout reconcile, and a genesis-case smoke test that asserts the JHR "호텔" claim resolves to ARTIFACT. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KuT3W81t88QQFaxY2ruWv2