Review product directions before building, launching or automating. UX3 connects User Flow, Evidence Flow and Business Flow, returning continue, verify or reframe with evidence gaps and bounded next actions. Includes briefs, schemas, handoffs, illustrative examples and local Python validators. MIT; keep all 89 files. Python 3 and jsonschema support local validation; host permissions and human approvals remain required. Source: https://github.com/cis2042/ux3-product-design-harness Overview: https://cis2042.github.io/ux3-product-design-harness/ Adoption inquiries: describe your team and a real product decision at https://www.linkedin.com/in/cis2042/