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Stylesheets written as topics, so a user's AI can make a new look for d2. The same spec as AiSpec:style-topics, in OpenSpec's format.

Open items for the d2 (diesel2) prototype, kept by the AI as work is deferred or finished.

Stylesheets written as topics, so a user's AI can make a new look for d2. Built in proto1 v0.7.0.

Design decisions for the d2 (diesel2) prototype, recorded as they were agreed. Append-only; newest last.

This is the prototype's wiki: markdown topics that link to each other, to the domain model and to objects. Everything here is made up, a sandbox for trying d2.

The specification of d2conf: what it's for, its parts, and what's decided

The components of d2conf: its functional areas, what each is for and what it uses

Copperhead Mining is a made-up copper producer in British Columbia (CA-BC). It runs the Viper Ridge Mine on the prop-viper property, with its plant and camp.

The design of d2conf: the mechanisms that realise its specification, for any code base

The API of d2conf as designed: conventions and the routes each feature uses

How the sample model follows a drill campaign, using Frostline's 2026 program.

Frostline Resources is a made-up gold developer listed on the TSXV. Its main asset is the Frost Lake property in Ontario (CA-ON), home of the Frost Lake Main deposit.

Three doors, simple to complex. Pick one now; you can switch any time.

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

The project log of d2conf: changes and decisions by the people on it, dated

Sam's copper view and the producer he uses as the benchmark.

Sam's watch on Frostline Resources: the drill results he is waiting for and what would change his mind.

How Sam wants the AI to behave: answer length, links, what to skip.

Who Sam is: a made-up weekend prospector and gold-junior investor. The demo user whose AI keeps these memories.

The sample domain in mining-domain has 56 classes in eight groups. The [model graph](/domain/overview) shows them all; its Groups tab shows them group by group.

North Royalty & Streaming is a made-up royalty and streaming company. It doesn't operate mines: it pays up front for a share of other companies' production.

Warn when a stylesheet's text would be hard to read

Stylesheets written as topics, so a user's AI can make a new look

Remember each user's stylesheet with their account instead of the browser

Keep one wiki topic per company up to date from a chat, linking objects instead of copying numbers. Use when the user shares news, results or opinions about a company in

Add or change classes in a d2 domain safely: one side per relationship, keys, then check the model and the objects. Use when the user asks to model something new or chang

this project's own way of working, on top of d2's skills; read after them. Its person and its AIs keep it.

Readings come in; a limit decides who hears about it. alerts.notify stands in for a real channel such as email or a push message: here it only records what it would send,

A drill program comes back from the lab. Each hole is scored on its gram-metres (grade × width, summed over its intervals), graded by guarded rules, and the best hole mak

The smallest spec: one message and the rules that answer it. A rule's last payload goes back to whoever sent the message.

A made-up mining-company domain model for playing with domain tooling: the model graph (/domain/overview), the object browser (/dom) and the domain APIs. Converted from d

Placing an order: check the stock, price the lines, pick a discount, confirm. Each step is its own message, so each can be extended or replaced with rules of its own. The

Bringing a portfolio back to its targets. Each position is valued, compared with its target weight, and a guarded rule decides: buy, sell or leave it. Differences under 2

The black-box tests of d2conf: at least one per spec line, each run as a person

The UI specification of d2conf: how its UI behaves — screen flows, layouts, what each page shows

Three rounds of readings through alerts.

Frostline's fall program at the Aurora zone, through drill-results: five holes, one bonanza, one abandoned.

Sends hello's message twice and checks the answers.

Sample objects for mining-domain: three made-up companies (Frostline Resources, Copperhead Mining, North Royalty & Streaming) with their people, properties, deposits, dri

Three orders through order: a member's, a big one from a guest, and one the stock can't cover.

A small resource book drifted after a run in gold, through rebalance: one well over target, two under, two on target, and a 1,500 cash reserve to keep: the buys share wha

Open items for d2conf

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

running AI agents by role, watching them, guardians

what the AI agents did

The current way: [Run your agents in the background](/page/AgentOnboardingDemons) (after [Choose your agents](/page/AgentChooseRoles)); this page is the older kit's.

a builder's onboarding on a project they joined (not the owner's setup): pick a door, which connects your AI (razie, designer-106 chat, 2026-10-12); where a builder with

the project's messages between agents and people, and the agents' alerts

What's a chat loop? Today you talk to your AI in its own app, and it works on d2 when you ask. In a chat loop your AI stays on d2: it keeps listening to the chat here, so

Dev-sync is the round arrows button at the top. Turn it on while you, or your AIs, are changing things, and the pages you have open keep themselves current.

the Drafts page — what is waiting to be published, yours and your AI's, and what you can do with each

When you talk with your AI about a page ("open the sync section", "show me that item"), ESP (also called Mind Meld) lets it take you there. You don't have to hunt for the

the expression language by example, and every core function

Your project's Files keep images, PDFs, mockups and other files your pages and documents use. Open them from the Toolbox (Files) or at /cdn on your project.

a Focus, one subject's thoughts and topics on one page, from a search to pipeline tasks

the agents that check the others' work and only report

the init page: what it is, the lifecycle messages it handles, declaring crons, examples

an init page that uses them

A journey is a person's path through an app's pages to a goal: from where they start to where they are done. Open them at [/page/Journey](/page/Journey).

what d2 tells your project as things happen

who your AIs may message, how much, what they said, and what happens when they misbehave

keeping notes in an Obsidian vault and topics on d2 in step

what your AI may do on its own, and what waits for you

the list of work, by role

the life of the pipeline's tasks

project's decisions and changes

creating one, members, roles and permissions

your AI's tokens, the vault and what your AI may do on its own

everything you can set, on one page, with a search

How to get help: send a message, or let your own AI in for a few hours.

the system view on hero and creator projects: each feature, what you asked for, and whether it's built and checked

the full view on pro and master: spec, design, implementation and tests side by side

ThoughtFlow: turning your thoughts into work, and how it changes the pages it is on

your private thought locker: capture, tag, find, and send thoughts to your AI

every tool of your project on one page

secrets for your AI agents

talk to d2: dictate thoughts and chats, and control them with "ok" commands

the Work page: to-dos and pipeline items side by side, by feature

The simple way: you talk to your AI in its own app, it builds here on d2. Nothing to set up. The only question is how you see both: your AI's chat, and the page it's chan