Case Studies
Every project documented here is a full five-stratum STRATA build — classification, derivation, authority chain, execution loop, and artifact trail, run end to end. What differs is the class, the stack, the domain, and the era, not the discipline: these span Class 1.1 (Greenfield MVP), Class 1.2 (Expansionary), and Class 1.3 (Platformization) across VueJS, NestJS, n8n, and Nuxt/Docus. Three of them — Fractal OSI, One Verse Daily, and AI9GM — were built before the protocol was formally specified: they followed the same layered governance independently, and their convergence is what revealed STRATA as a protocol worth extracting. StrataProtocol.org is the result, documented and built with the protocol itself. Together they serve as onboarding material, architectural reference, and proof that the governed approach works — even in its earliest, unpolished form. These narratives will be expanded progressively.
Three Categories of Evidence
These case studies establish the framework three different ways:
- Self-referential proof — StrataProtocol.org, the premier, fully formal application: the protocol documented, built with the protocol it documents. Its governance artifacts are inspectable on this site.
- Formal early adoption — Fractal OSI, One Verse Daily, and AI9GM each converged on the same five-stratum discipline before the protocol had a name, governed by engineering rigor rather than a named specification.
- Diverse stacks — from VueJS and NestJS to n8n AI workflows and Nuxt/Docus, the same five strata held across unrelated technology choices. STRATA is not stack-specific.
Fractal OSI, One Verse Daily, and AI9GM were developed before the formal STRATA specification. They are documented here because they informally applied STRATA's core principles through engineering discipline, and their inclusion demonstrates that the methodology emerged from real practice.
Available Case Studies
StrataProtocol.org
Fractal OSI
One Verse Daily
AI9GM
Implementation Patterns Across the Strata
Every case study runs the same five-stratum sequence end to end — what differs is the stack, the domain, and the era. Three were built before the protocol was named; that they followed the same path independently is the strongest evidence the path is real:
- Classify the project — choose the right product category before any specification begins.
- Derive the document hierarchy — Vision, BRD, PRD, and Engineering Standards in dependency order.
- Establish the authority chain — a constitutional mandate for AI coding tools and human contributors.
- Execute in governed phases — requirement analysis, phase planning, AI-assisted delivery, and human sign-off.
- Preserve the artifact trail — maintain the living governance record across the full project lifecycle.
The complete framework documentation covers each stratum in depth. The case studies show what those strata look like when applied to real shipping projects.
See the Platform Roadmap for the case study publication timeline, and the Marketplace for practitioners available to guide implementations.
Introduction
What the AI Playbook covers — how to work with AI copilots inside the STRATA governance framework.
Overview
Case Study — AI9GM, a Class 1.3 project on the same Nuxt Content and Docus stack as StrataProtocol.org. An early adoption of the full five-stratum STRATA sequence for AI-assisted delivery, predating the protocol's formal specification.

