The cold test worked as an experiment: a fresh agent with Skill(wiki) cited it first, refused to hand-edit body frontmatter, knew the corp regen-db stamp trap, and knew corp_specialization is missing from its own template. It also found four things the skill had wrong or missing, all verified before folding in: body frontmatter is a MIDDLE layer (atlas CLI -> systems.db -> scaffold writes the page -> import_economics reads it back), not the origin GOVERNANCE.md implies; the four empty categories are Q-118, an open scope question rather than an invitation; some bodies are visual-regression goldens and nothing in wiki/ says so; and status is editorial, not an import gate. Also: check current state before editing, since the test's own task described a change that was already true.
T-1244 corrected in the same pass — tectonics is derived from planet_class via a lookup (body_definition_parser.py:563), so the measured 68% 'low' is a projection of the class distribution, not an authoring choice. The ticket's question changed accordingly.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>