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How machines read the web

The web now has a first reader, and it isn’t human.

Field notes, experiments, and essays on agent-readiness — what AI agents actually do when they reach your site, tested on real pages, reported straight.

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The Agent Trusts Your Data, Not Your Prose

The Agent Trusts Your Data, Not Your Prose

Field report from the Data layer of agent-readiness — and why “add FAQ schema” stopped being the answer in May 2026. Here is a small experiment you can run in your head. Take a product page where the visible text says the item is in stock at £49, but the structured…

The Field Guide to Agent-Readiness

The Field Guide to Agent-Readiness

What an AI agent actually needs from your website — six layers, three starting points, and the parts that will change before the year is out. Most writing about AI agents and the web argues about the future. This is not that. By June 2026, agents are already the thing…

I Built a Trap to Stop an AI Agent. It Walked Straight Through.

I Built a Trap to Stop an AI Agent. It Walked Straight Through.

Two visually identical pages, ten files to download, and Claude in Chrome as the test subject. I assumed JavaScript rendering, onclick handlers, and an iframe would stop the agent cold. None of them did — and that failure turned out to be the most useful result I…

MCP Didn't Win Because It Was Good — It Won Because It Was Math

MCP Didn’t Win Because It Was Good — It Won Because It Was Math

Every few years a technology gets called “the standard that changes everything,” and almost every time it’s marketing. So when Anthropic quietly dropped the Model Context Protocol on GitHub in November 2024 — no fanfare, a modest press note, two SDKs — the safe…

Your robots.txt Is Obsolete — AI Agents Negotiate Access, They Don't Ask for It

Your robots.txt Is Obsolete — AI Agents Negotiate Access, They Don’t Ask for It

For thirty years, the deal was simple. You put a robots.txt at the root of your site, it said allow or disallow, and crawlers obeyed. It was a gentlemen’s agreement: you stated a preference, well-behaved bots respected it, and in exchange…

Prompt Injection Isn’t a Chatbot Problem — It’s a Content Problem on Your Own Website

Prompt Injection Isn’t a Chatbot Problem — It’s a Content Problem on Your Own Website

For two years, the entire conversation about prompt injection has pointed in one direction: the chatbot. We worried about the box where users type. We hardened the input field. We red-teamed the assistant. We were guarding the wrong door. In 2026, the most dangerous…

// what this is

Senteri is about one thing: how machines read the web. As AI agents become the first reader of most pages, the rules of what makes a site legible are being rewritten — and almost nobody is testing them in the open.

This is where that testing gets published, in English. It’s fed by a Polish-language research engine that ships daily threat intelligence, a 270-term agentic-web dictionary, and a working MCP layer — selected, rewritten, and sharpened for a global audience. The experiments are real. The results are reported straight, including the ones that fail.