Stephen Deslate

Software engineer and researcher. I founded SJD Labs to answer a question most of the industry treats as settled: can AI-generated code be systematically reliable?

The answer required building 30 enterprise applications across 10 controlled trials, tracking every failure mode, and iterating the methodology until it converged. The result is Spec-Driven Development (SDD) v11.0 — a terminal methodology that produces consistent 9.83-10.0 quality scores across any NestJS + Prisma + PostgreSQL application.

The research data is public — every trial, every score, every convergence curve. The full methodology is available on request. SJD Labs exists to continue this research — extending SDD to new stacks, publishing findings, and building production software that demonstrates the approach works.