iRehab Brief Schema v0.1 went public today. It defines 'how to author a structured pre-consult symptom questionnaire' — not a product, not a platform, not a medical device. Just a structured blueprint. This piece records how we walked from a stakeholder mapping exercise to the conclusion 'format can be open, logic stays closed forever' — why we picked Apache-2.0 + CC BY 4.0 dual licensing, why Republic of China (Taiwan) law as the governing law, what 26 lawyer-confirmed pre-draft conclusions signal to integrators, and finally a direct workflow for clinicians: hand the GitHub URL to your AI assistant and have it design a specialty-specific brief for your practice.