Documents

This is d2master, the master demo: a two-day conference run on d2, with its programme, people, tickets and flows. It's a master project: a team of AI agents, each in its

The design of d2master: the mechanisms that realise its specification, for any code base

The API of d2master as designed: conventions and the routes each feature uses

A flow is what d2 does when something happens: a message comes in, the rules that handle it run, and each can send more messages. Here most flows start from changes to th

The master demo: a two-day conference run on d2, with its programme, people, tickets and flows, and the pages where people and their AI agents pass work along. It's a wik

This is a project on d2: a notebook and an app in one, built with an AI.

The specification of d2master: what it does, as its users and AIs meet it

NorthConf, a made-up two-day tech conference, as a domain model: the event and its venue, the programme, the people, tickets, and what happens on the day. Its sample data

Every day before the event (a cron, declared in Init): unpaid registrations get a reminder; on the day before, every volunteer gets their shifts.

Every message the event sends goes through this one rule, and here it's kept in the outbox (a Message object). In your own project, this is the one place to change for re

Check-in. A check-in at the door marks the registration as attended; a check-in into a session counts towards its room, and when a session has more people than its room h

The double-booking guard. Two sessions can't share a room at the same time. When a session is made or moved, this checks it against the other sessions in the same room: a

A new registration. The organizers hear who registered; the ticket type and the event count it (the event's seatsLeft follows), and when it reaches its capacity it's mark

The black-box tests of d2master: at least one per spec line, each run as a person

The UI specification of d2master: how its UI behaves — screen flows, layouts, what each page shows

Each of the event's flows, run by hand on the sample data (in the [Fiddle](/fiddle?tab=stories&topic=Story:events-flows), nothing is kept). The triggers in Init start the

Sample objects for events: NorthConf 2026, two days at the Harbourside Centre, 4 rooms, 3 tracks, 20 sessions, 10 speakers, 40 attendees with their registrations (paid, p

the quirks of this build an AI agent should know

Sample prompts to give your AI, and what came back, by kind of user

Short how-tos, each a few steps. Pick what you want to do; the guides below go deeper.