core/skills/versor-coherence-guardian.md

name	description	triggers	auto_invoke
versor-coherence-guardian	Enforce Versor Coherence Guardian Protocol + exact algebraic closure before any change in algebra/, field/, vault/, or generate/. Auto-triggers on relevant paths.	pre_edit:algebra/ pre_edit:field/ pre_edit:vault/ pre_edit:generate/ manual	true

Before any edit or proposal in the triggered paths, execute the Versor Coherence Guardian Protocol from GROK.md:

1. Confirm ||F * reverse(F) - 1||_F < 1e-6 holds for affected FieldState(s).
2. Verify that versor_apply(V, F) and cga_inner(X, Y) paths remain exact.
3. Re-run relevant checks from tests/test_versor_closure.py (or current equivalent).
4. Only proceed if all checks pass. Block or surface any violation immediately.

This skill is non-bypassable for the listed modules. It is the primary enforcement mechanism for CORE's core algebraic invariant.