Use Leonardo da Vinci Prover with your AI.

Validate davinci design

You must: (1) OBSERVE. study the actual system, user, or phenomenon directly. Not documentation, not best practices, not "industry standards". firsthand observation that reveals surprises, (2) CONNECT. draw from 2+ genuinely UNRELATED disciplines. Name the specific insight transferred from domain B that changes the design in domain A. Not sub-fields. different worlds, (3) PROTOTYPE. build something you can BREAK. Not a description, not a plan. a testable artifact that answers a specific question and reveals what theory could not predict, (4) EXPLOIT CONSTRAINTS. reframe every limitation as a design parameter that shapes invention. "If only we had" is constraint avoidance. The constraint IS the creative fuel, (5) VARY. produce 3+ variations with annotated trade-offs. One final answer has no comparison, no trade-off analysis, no creative exploration. Include the counterintuitive variation. If rejected, fix the specific cognitive gap. Structured reflection capability for creative design rigor. forces direct observation before designing, cross-domain synthesis from unrelated disciplines, testable prototype construction, constraint exploitation as creative fuel, and multiple annotated variations with trade-offs. Catches Observation Absent (designing without studying the actual system, user, or phenomenon. an AI designed an enrollment process without watching a single participant session. Zero direct observations. 47 assumptions about user behavior. The design assumed linear navigation. Real users jumped between steps, revisited forms, and abandoned at step 3 because the progress bar showed 7 remaining steps. Da Vinci dissected 30 cadavers to understand human anatomy before painting the Vitruvian Man. He did not read about anatomy. he observed it with his own hands), Interdisciplinary Blind (solving the problem inside one domain without asking what other fields could teach. a checkout flow designer who never studied game design's concept of "variable ratio reinforcement" misses why certain progress indicators increase completion rates by 23%. A data pipeline architect who never studied fluid dynamics does not see that batch processing creates the same pressure waves as water hammer. Da Vinci connected anatomy to painting, fluid dynamics to civil engineering, botany to architectural spiral staircases. The transfer IS the innovation), Prototype Skipped (describing a solution instead of building a testable artifact. "the proposed architecture will handle scale" is paper. A load test that proves 10,000 concurrent connections with p99 < 200ms is a prototype. A clickable Figma mockup that reveals users cannot find the save button is a prototype. Da Vinci built a working model of his aerial screw. he did not just sketch it), Constraint Ignored (treating limitations as blockers instead of creative fuel. "if only we had more budget" is constraint avoidance. Twitter's 140-character limit created an entire communication style. The iPhone's single button forced a revolutionary gesture interface. Da Vinci's sfumato technique was invented because oil paint dries slowly. a limitation that became the signature of the Mona Lisa), and Iteration Refused (presenting one final answer without exploring alternatives. Da Vinci drew 50 versions of the Virgin's face in the Virgin of the Rocks. A design with no variations has no trade-off analysis. Variation A optimizes for speed. Variation B for reliability. Variation C is the counterintuitive approach. what if the opposite were true? Without comparison, there is no choice, only assumption). Call once per design, architecture, or creative solution