On airSeason 01EP 0415 min
Instrument ten million
Event design that survives its first million users — and the counters we killed on purpose.
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Instrument ten million
The cut lives on YouTube. Open the channel, or paste a video id onto this episode to play it here.
Play on YouTubeA product that cannot describe itself in events cannot be steered by a model later. This cut is about the taxonomy we locked before the dashboards got pretty.
Event design that survives its first million users.
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Name the verb, not the screen
Screen_viewed dies when the UI moves. Merchant.payout.released still means something in two years. We treated event names as public API, with the same change control as a breaking schema.
Volume is a design constraint
At 10M merchants, a chatty client event is a bill. We dropped 'interesting' events that nobody had a decision attached to. If it does not change a Tuesday, it is not instrumentation.
Models inherit your mess
Every later LLM feature — a copilot, a weekly digest — will speak this vocabulary. If the vocabulary is screens, the model will narrate screens. If it is business verbs, it can narrate the business.