Method loop
Spec → data card → Medical Gate → patch pack — an illustrative closed loop.
Contracting entity: Beijing Langhui Technology Co., Ltd. (brand LumeSage). Not a medical-device promotion; no clinical efficacy claims.
Use failure categories and new task specifications as feedback. Do not automatically return private holdout questions or answers to training. Where one provider performs production and evaluation, disclose roles and agree personnel, access and test-set separation, including independence limitations. Evaluation supports development decisions; it does not replace clinical validation or regulatory approval.