Various reference documents are stored here, particularly for Hoon, but also for other parts of the system.

    The Glossary

    Urbit is known for introducing a great deal of new terminology. The glossary will help demystify our jargon.

    The Cheat Sheet

    The cheat sheet is a compact document for looking up Hoon runes.

    Hoon Expressions

    This section contains more comprehensive reference materials for Hoon runes and other expressions, describing their exact semantics and syntax.

    Standard Library

    This section documents the gates and mold-builders of the Hoon standard library.


    When your Hoon produces an error, check what it means here.