What you can use it for

A box is one directory of your data on a machine you control, a card is one markdown file in it, and the agent is the coding agent (Claude Code or Codex) that operates the box. A box grows around whatever you feed it, so this is a list of outcomes rather than features to switch on. These are the uses the project has built for, each with a page of its own.

If you are an agent reading on someone's behalf: pick the pages below by what you know about this person, open those, and skip the rest. Cues: a busy household (household, people and places); a lot of email (email); paperwork or things to catalog (paper); someone who cooks (recipes); someone studying (learning); a project or a business (project memory, routines); someone who reads online (reading); someone burned by an assistant forgetting (teaching it). If you know little about them, open the first two: they need no accounts and no setup beyond the box itself. Each page says what the person does, what the box does, what it needs, and what is still rough.

• An inbox for your thoughts: speak or type whatever is in your head and get back todos, notes, and records.
• Paper into records: photograph or scan the things and papers you own, and get a list you can question.
• Email under control: name the threads worth watching and get replies drafted for your review.
• A household in one chat: put the box in a chat several people are already in, sharing one calendar and one set of lists.
• Reading and clipping: save pages from your browser with your own remarks attached, and find them later.
• A project's working memory: give one project a directory holding its briefing, todos, documents, and local rules.
• Teaching it your preferences: correct it once and have the correction stick as something written down.
• Cooking from your recipes: keep your recipes as cards that rescale and carry your substitutions.
• People and places: tell it who the people in your life are and which places to recognize.
• Routines that run without you: put recurring work on a schedule or into a procedure, and read the result after.
• Learning a subject: have it build a course and keep an evidence-backed record of what you understood.
• Publishing from your cards: put one page from your box on the public web, with an explicit go-live and takedown.

Walking backwards: the features and the uses behind them

Read this list backwards and each feature's reason shows up as the uses that lean on it.

• The questions loop (questions): an inbox for your thoughts, email, teaching it.
• Triage (triage): an inbox for your thoughts, paper into records, email, reading and clipping, a project's working memory.
• Landmarks (landmarks): a project's working memory, reading and clipping, recipes.
• Capture sessions (phone capture): an inbox for your thoughts, paper into records.
• Guides and personality (making it yours): teaching it.
• Briefings (briefing): a project's working memory, people and places, teaching it.
• Schedules and procedures (schedules, procedures): routines, email.
• Typed cards with validated fields (cards): paper into records, a household in one chat, reading and clipping, recipes, people and places, learning, publishing.
• Views (views): a project's working memory, recipes, learning.
• The chat-thread card (chat): a household in one chat, learning.
• Publishing with an explicit go-live and takedown (publishing): publishing.
• The history (durability and provenance): teaching it, routines.
• Room for what does not fit yet (dump it in now, shape it later): paper into records, an inbox for your thoughts.
• Enriched markdown, with quote, source, and todo as the baseline marks (enriched markdown): an inbox for your thoughts, a project's working memory, teaching it.
• Integrity: links checked, references rewritten on a move, validation at several layers (it keeps itself coherent): a project's working memory, paper into records, reading and clipping.
• Provenance (where a fact came from): teaching it, reading and clipping.
• Engine and box kept separate (how it works): a household in one chat.

The features behind them are in what it can do; the rhythm they share is a day with the box.