Methodology
The Tu Vi method
The calculation steps and reading principles behind a traceable Tu Vi experience.
Current scope
The adapter is pinned to iztro 2.6.0 with ruleSetId ziwei.default. It maps raw palace, branch, star, brightness, and mutagen fields into canonical identifiers used by the shared contract.
How to inspect it
Fixtures cover calendar conversion, leap months, early and late Zi, branch transitions, and timezone provenance. They document tested current behavior; they do not validate every school or unsupported correction.
Limitations
This material describes product behavior, data, and public scope only. It is not a certain forecast, diagnosis, or substitute for professional advice.
