Delta: Closing the Specification Gap — A Prompt Engineering Framework for Enterprise Software Teams (Acuity Press, July 25, 2026). A free, Creative-Commons-licensed book on specification-first AI-assisted development: the Ten Laws, the Specification Frame, and 100+ recipes for code that survives regulated production — money, security, compliance, concurrency. PDF & EPUB, no signup, no payment — and no reader, store, or library ever pays.
Context not provided is context invented by the model — incorrectly.
4 6 Every public-facing AI feature is an injection surface until proven otherwise.
Short (50w): Sandeep Dhuri is a technology lead with two decades of enterprise software experience across financial services, healthcare, and insurance. Delta distills that experience into a specification-first discipline for AI-assisted development. He publishes at acuity.press.
Longer (120w): Sandeep Dhuri has spent twenty years building and reviewing enterprise software in regulated industries — the systems where "almost right" code fails audits, loses money, or leaks data. As AI assistants moved into professional development, he watched the same failure pattern repeat at machine speed: fluent code, missing constraints. Delta names that pattern the specification gap and offers a working discipline against it — ten laws, one repeatable Frame, and a hundred field recipes. The book is free and openly licensed because the discipline matters more than the margin. He writes in a personal capacity; the views are his own.
ISBN (ebook) 979-8-9964807-1-5 · ISBN (print, reserved) 979-8-9964807-0-8 · DOI 10.5281/zenodo.21584309 · License CC BY-NC-ND 4.0 · Formats: PDF, EPUB (36-page HTML edition on this site) · Library availability: OverDrive & Vivlio Libraries at $0 · Also archived: Internet Archive · Open Library.
Cover (1600×2399): download · Social card: 1200×630 · All text quotable under the license with attribution. Press & permissions: permissions@acuity.press.
