VSDD Integrates VDD TDD and SDD

The article proposes Verified Spec-Driven Development (VSDD), a methodology that fuses Spec-Driven, Test-Driven, and Verification-Driven Development into an AI-orchestrated pipeline. It outlines roles (Architect, Builder, Adversary, Tracker), phases from spec crystallization to test-first implementation, and recommends early formal verification tooling (Kani, Dafny, TLA+) to ensure provable, auditable modules. The process emphasizes purity boundaries, exhaustive edge-case tests, and adversarial review to reduce runtime failures.