Writing

Field notes from the platform.

Architecture case studies from the work — enterprise RAG platforms, agentic AI, micro-frontends, and platform consolidation. Each one starts with a failure, then the fix. RSS →

TOGAF, applied for real. When the method is load-bearing, not decoration.

One tailored pass through the TOGAF 10 ADM, run on an agentic audit platform built solo inside a 48-hour window. Interactive: every phase, principle and governance step opens. The argument is not that the documents impressed anyone — it is that the method caught its own architect being wrong three times, on the record.

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The arithmetic decides. Where the model may not go in a money-moving agent system.

Four bounded agents, hybrid RAG with a citation guard checked in C#, fourteen deterministic invariants and a hash-chained ledger — and the design line the whole thing stands on: the model reads, retrieves and explains; the arithmetic decides.

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Making enterprise RAG a platform, not a project. What broke when every team built their own.

The retrieval framework behind 20+ production AI workflows at a Fortune 500 enterprise — hybrid retrieval that survives identifier queries, entitlement filtering pushed inside the query, a semantic cache that knows when it’s lying, and the workflow registry that turned a library into a platform. Closes on why an FMCG promotion peak — Black Friday — is the honest test of whether any of it holds.

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Building agentic AI for healthcare: lessons from HealthQCopilot.

Why a hallucination guard against FHIR became the most important agent in the system, what the work taught us about prior-auth, and the orchestration patterns that survived contact with real clinicians.

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Shipping a micro-frontend shell on Module Federation. The contracts that kept it sane.

Why the registry and design-system packages matter more than the remotes themselves, the runtime errors that nearly killed the rollout, and the team-topology pattern that made independent deploys actually safe.

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Collapsing a fragmented REST surface into one GraphQL gateway. Here’s what broke first.

Consolidating an enterprise platform onto HotChocolate behind Azure APIM — including the directive design that finally made field-level authorization survive a security audit.

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