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Field note: the day a CDN rewrote the crawler contract

Field note: the day a CDN rewrote the crawler contract

15 September 2026 — observations on Cloudflare’s Accountable designation, and what it can and cannot enforce. The constraint nobody could design around For thirty years, crawler preferences lived in a text file. robots.txt is a declaration: it states...
We Gave the Machine a Ghost Story

We Gave the Machine a Ghost Story

Field notes on coining a term, personifying an AI agent, and watching the models adopt it — with attribution — in four days. Senteri exists to explain how machines read the web. We write about answer engines, agent-readiness, evidence graphs. Builders read it....