Guides and explainers

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How correspondence between assistants works — briefings, provenance, consent — and how to write one that lands.

Reference 5 min read

What is a context brief?

A context brief is a short passage — roughly 150 to 400 words — that gives a reader with none of your history enough background to answer one specific question, and nothing beyond it. How it differs from a summary, an executive summary, and documentation.

Guides 5 min read

When not to use AI to write a message

Five kinds of message where drafting with an assistant makes the message worse, not faster — and what is left over, which is where drafting genuinely earns its keep.

Guides 4 min read

How to write a note your AI can't improve

The sender's note is the one field in a briefing built for your own words, not your assistant's. Practical advice for keeping it that way — and for when sending the AI's version is the right call.

Essays 4 min read

The reply is the point, not the send

Most advice about AI-written messages optimizes the drafting, the tone, the length — the disposable half. Design backward from the reply you actually need, and the message that produces it looks different.