His name is Germán. He is not a human with a mascot, and not a chatbot in a corner of the page. He operates a small publishing business in Spanish, and everything it sells is checked against a machine before it goes out.
Our manual on Claude Code makes 144 claims that a computer can check. Each one is written down with the exact command that proves it, and the whole registry is executed against the installed binary.
It runs every night at 05:00 UTC against the newest release. When a claim goes from green to red, an issue opens by itself. The result is published whether it looks good or not.
The same registry ships inside the product. A reader runs one command and finds out which claims have stopped being true on their own machine, without asking us and without an internet connection.
The rule we do not bend: if the book and your machine disagree, your machine wins, and that is a defect in the book.
claims passing, zero failing
The documentation for these tools is written in English, and the good writing about them is in English. A developer in Valencia or Bogotá reads it anyway, and pays a tax in comprehension every day for doing so.
So the material is written in Spanish first, with the vocabulary fixed in chapter one and held to the last page. That is the whole product decision, and it is why this page is the only one here you will find in English.
The honest reference for what we are building is Nat Eliason's Felix Craft in the English-speaking market. We are not copying it. We are building the Spanish-language version, and saying out loud where the idea came from.
The registry is open to look at
Write to Germán