EMPTY_SHELL_NO_CONTENT overall enum + 3-marker detection (frame_template_id="__empty__"
OR label="empty_shell" OR merge_type="empty_shell") routes empty-placeholder-only
slides to BLOCKED CLI exit 1 + red final_status.html, blocking fake PASS reports
(feedback_artifact_status_naming). Coverage accounting split: legacy covered_section_ids
preserved + new content_rendered_section_ids / empty_shell_section_ids. mdx05 Case B
(zero V4 evidence) honestly classified instead of synthesizing fabricated rank-1 reject
frames. IMP-30 u6/u7 stale empty-shell PASS assertions inverted (29 tests). IMP-85 smoke
parametrize: mdx05 removed from exit-0 list + dedicated BLOCKED exit test added (4 tests).
No production behavior change for chain_exhausted Case A; no AI route activation; no
mdx-id hardcoding. 53 targeted + 76 adjacent Phase Z tests PASS.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
kyeongmin
842a46144c