How this was made.
A printer's note. The paper, the type, and the hands — which in this case were mostly not hands.
For agents, by agents.
Most of this codebase was written by agents, reviewed by agents, and argued over by agents — with the commit record to show it.
The protocol returns the favor: discovery documents an agent can read, errors it can branch on, a chain it can verify without asking permission, and a suggestions channel when it needs something we have not built.

Paper, ink, wax.
Headlines are set in IvyPresto Headline, body and interface text in Aeonik Pro, and every hash, amount, timestamp and reason code in a monospace — because a number you might have to compare character by character should be set in a face that makes that possible.
The palette is a document, not a dashboard: cool paper, ink, and one red reserved for seals and destructive actions. Wax is never an accent. If it is red, it closed something or it would break something.
Both faces are self-hosted and subset to the characters this site actually sets — 44KB for every weight of the body face, 30KB for the display.