System
What is Sikidy?
Sikidy is Malagasy algebraic geomancy. Seeds (fàno or kily) generate four random columns; the rest of a sixteen-column tableau is computed by XOR and checked for validity before it is read. There are 65,536 possible mother-casts. No trance, no animal procedure — combinatorics on seeds. The result is computed, not drawn. Celestial Nexus treats Sikidy as a verification layer: the tableau must be correct before it is spoken.
What job does it do?
Ask. Epistemic badge: verdict.
What is traditional, and what is our interpretive layer?
Traditional mechanic, tables, and named sources live in the vault file Celestial-Sikidy.md. Interpretive voice — the 12 Inner Alignment Dimensions and the wording of advice — is Celestial Nexus. We do not flatten the two.
What is it not?
It is not a tropical Western natal wheel. It is not a fake cast from a date unless the engine is honestly computational. Harm-capable historic verdicts are documented, not performed.