Let's start

Product documentation explains how a system behaves, and code records what was shipped. Neither always preserves the reasoning that connects an intent to an interface, a runtime decision, a capability or a boundary of authority.

Memos exists to keep that reasoning legible while it is still alive, so an intuition can become something that can be examined, challenged and reused.

The subject is the architecture around useful agents: how an experience hosts intelligence, how runtimes plan and coordinate work, how capabilities connect to the world, how context and memory are composed, and how execution remains observable, durable and governed.

That includes agent harnesses, shared contracts, provider abstractions, MCP, generated interfaces, artifacts, evidence, provenance, approvals and human control. MCP is part of the picture, not the definition of the system.

The writing will separate what exists today from what a system is moving toward. A current constraint, a target model and an open question are useful in different ways, and they should never be presented as the same thing.

A recurring concern will be where responsibilities belong: in the host, the intelligence runtime, the capability fabric, a shared protocol or the interface. Clear boundaries make systems easier to extend without tying them to one model, provider or transport.

The questions collected here come from building, testing and revising real systems. That proximity matters because abstract ideas become useful only when they survive contact with interfaces, constraints and failure.

This is still an independent publication, not a product feed or a changelog. The work is the source of the questions, not the subject of every answer.

Writing in public creates pressure to make every thought sound definitive. This space is meant to resist that. A memo can be provisional without being careless, as long as facts, interpretations and open questions remain distinguishable.

Clarity matters more than cadence. Memos will grow when the work produces something worth keeping, not because a publishing schedule needs to be filled.