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Keep a side-project idea backlog

The app idea you had on the train, written down with the problem it solves and how long it might take. Months later, ask your assistant which ideas fit a free weekend.

Use cases All use cases

For builders

How to connect ChatGPT and Claude to the same data How to give an AI agent safe, scoped access to data A database for vibe-coded apps, with access built in

AI and engineering

Keep a daily work log Keep a prompt library for Claude, ChatGPT and Cursor Let agents build on each other’s findings Run a task queue for your agents Share agent traces across a team Share research notes Track eval results over time Start an experiment tracker Keep a model training log Keep feature flags and config agents can read Keep bug reproductions and test cases Record deploy and release history Keep an inventory of API keys and services Start a dataset registry Collect standup notes from assistants Keep an incident log Log benchmarks and latency measurements Track GPU and compute spend Start a labeling and annotation queue

Personal

Keep a side-project idea backlog Start a habit tracker Start a reading log Track what you’re learning Track subscriptions Start a budget tracker Start a movie and TV tracker Start a home inventory Keep a plant care log Keep a car maintenance log Plan your travel Keep a tasting journal Track a collection Keep notes on the people you know Track job applications Keep a vocabulary list Track important documents Keep a food log Start a training log Keep a log of your own numbers Keep a schedule of what is due and when to refill Start a recipe collection Keep a list of things to buy Share a pet care log Keep a daily journal Keep gift ideas and birthdays

Business

Track consulting time Track freelance clients and invoices Track fundraising Start a lightweight issue tracker Back an internal tool Store a customer-facing app’s data Plan a content calendar Collect customer feedback and feature requests Manage event attendees and sponsors Report from many sources Start a customer list Track sales deals Keep a customer support log Track hiring Start an employee directory and onboarding checklist Track inventory Track orders and suppliers Start an asset and equipment register Track partners and resellers Track contracts and renewal dates Keep a price list and build quotes

Collaborative

Split expenses Share a research reading list Plan an open-source project roadmap Build a shared world-building bible Plan a house renovation Start a shared household list Share a household chores rota Keep a family schedule Track kids’ activities Plan a trip with friends Plan a wedding or party Run a book club Run a sports team or club Run volunteer and community sign-ups Run a student group project Start a neighborhood tool-lending list Share a weekly meal plan Write babysitter and caregiver handover notes Plan a shift schedule Plan a carpool rota Share a packing list Coordinate help for a parent

An example

@ADoor Idea: a small app that tells me which train car to board so I end up by the exit. Would need station layouts. Maybe a weekend for a first version.

ADoor Added 1 entry to Ideas

Ideas

IdeaEffortStatusAdded
Train car by the exitA weekendIdeaOct 20

What you can ask later

  • “Which ideas could I build in a weekend?”
  • “What did I write about the train app?”
  • “Which ideas have I had more than once?”
  • “Move the train app to In progress.”

Who can see what

  • Only you by default.
  • A friend you build with can read and add to the ideas you mark as shared.
  • Cursor can read the idea and its notes when you start building, and add progress notes.

How it compares with a notes app

A notes app is better for quick sketches and long free-form thinking.

Once you have dozens of ideas, ADoor helps. Each one has an effort, a status and notes, so your assistant can sort and compare them, and Cursor can read the idea when you sit down to build it.

How to start

  1. Sign in to ADoor and connect an assistant like ChatGPT. Claude, Grok and Cursor connect the same way, through MCP.
  2. Tell it: “Keep my side-project ideas: idea, problem it solves, effort, status, date added and notes.”
  3. When you start one, connect Cursor so it can read the idea and add progress notes.

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Questions people ask

Can Cursor read the ideas?

Yes. Cursor connects to ADoor through MCP, with the access you give it.

Can I attach sketches?

ADoor doesn’t store files. Save a link to where the sketch lives.

Do I have to pay?

Not on the free plan, which holds 3 tables and 100 rows. Pro is $10 a month per workspace, with 1 GB of storage and no per-GB charges.

Does it work with Claude and Grok too?

Yes. ChatGPT, Claude, Grok and Cursor all connect through MCP with a sign-in, and each gets its own access that you can narrow or remove later.

Updated October 20, 2026.

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