See the skeleton under any persuasive text: the point it is making, what holds that point up, what it quietly assumes, and where it gives way. Click any part of the text or the film to inspect it.
Made-up texts, each read and mapped by Claude. Those readings are saved in the page.
Your own text, scanned in your browser by a set of hand-written rules. No AI runs on this page, and nothing you paste leaves your device.
Claude wrote the four sample texts and then mapped each one: the thesis, every reason and piece of evidence, the objections the author raises and how they are answered, and the premises the argument needs but never states. Each finding names the problem and says why it matters. Claude also built this page.
For pasted text the page uses plain pattern matching: claim words (“should”, “therefore”), evidence cues (numbers, “according to”), objection openers (“critics say”), and phrases that often signal a fallacy (“everyone knows”, “either… or”, “soon have to”). The first sentence of each paragraph is treated as its point.
Switch any plate to the rule-based scan to compare. Rules catch surface cues quickly. They cannot see that a writer’s own numbers contradict the headline, that a reply dodges the objection, or what a contract leaves unsaid. That gap is what a careful reader, or a capable model, adds.