Fabian G. Williams aka Fabs

Fabian G. Williams

Principal Product Manager, Microsoft Subscribe to my YouTube.

Paying Down Supervision Debt: Why the Five Control Points That Decide Whether Your Agent Ships Have Nothing to Do With Your Model

Five infrastructure control points decide whether an agent reaches production. The Agent Reliability Kit sits on one of them: observability. A public, consumer-readable audit-trail receipt that satisfies both the security review and the finance review with the same URL.

Fabian Williams

9-Minute Read

Five-box diagram of the agent infrastructure control points (Runtime, Identity, Data, Tool/Write, Observability) with the Agent Reliability Kit highlighted on the Observability box, plus a multilayer kill-switch strip across the bottom

By the end of this post you will know which of the five infrastructure control points your agent stack is shipping without, and you will have a concrete pattern for paying down the observability piece of that debt: a public, consumer-readable audit-trail receipt that satisfies both your security team and your finance team with the same document. The receipt was already in production when the broader practitioner conversation started naming the gap.

Qui Non Proficit Deficit: Three Months Offline, Two Apps Shipped, and an AI That Runs a Nonprofit

I disappeared from LinkedIn and YouTube for three months. Not burned out — building. Two iOS apps shipped, an autonomous AI assistant running a nonprofit, and a workflow that changed everything. Here's the full story.

Fabian Williams

12-Minute Read

Stale Contacts Cleaner on the App Store

I went heads down for about three months — no LinkedIn, no YouTube, barely any Twitter. In that time I shipped two iOS apps to the App Store, built an autonomous AI assistant that runs a nonprofit’s entire digital presence 247, and developed a workflow where AI agents scale my output 3-5x. This post is the full story: the career pattern that taught me to recognize seismic shifts, what I actually built, and why I’m back.

Agent-First Commerce: I Built a Website That Sells Like a Sales Team

Over a weekend, I built and tested a working Agent-First e-commerce demo with Claude Code, MCP, and conversational checkout. Here's what I learned.

Fabian Williams

3-Minute Read

Agent-First Commerce Flow

Not selling anything here — just sharing what I built over a weekend using Claude Code, the Model Context Protocol (MCP), and Agent-to-Agent (A2A) orchestration.

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