Waitwell
Fill the cancelled appointment
Problem
A dental practice loses a few thousand a month to short-notice cancellations. The receptionist would need to ring twenty people to fill a Thursday 3pm, and the reception phone is already ringing, so the slot goes empty.
Why now
Practice management systems finally expose calendars, and patients now expect to be reached by message rather than a call, which is what makes an automatic offer socially acceptable rather than intrusive.
Solution
The waitlist is offered the slot in clinical priority order, one at a time, with a short acceptance window. The receptionist does nothing. The slot fills or it does not, and either way nobody spent an hour on the phone.
Who it is for
A single-site dental, physio, or private GP practice where an empty chair is pure lost margin. The receptionist would have to ring twenty people to fill a Thursday afternoon, and the phone is already ringing, so the slot goes empty every week. Nobody has decided to accept the loss. There has simply never been an hour spare to prevent it.
What you could earn from Waitwell
Say you build Waitwell and charge your own customers $49 a month, the price the score suggests. The numbers below are the revenue that would come from them. This is money you earn, never a fee you pay UpgradIQ, and we never take a cut. It is arithmetic off the price, not a promise the customers arrive on their own.
See what Waitwell produces
The waitlist is offered the slot in clinical priority order, one at a time, with a short acceptance window. The receptionist does nothing. The slot fills or it does not, and either way nobody spent an hour on the phone.
Your build kit for Waitwell
Start the build and the kit opens two steps in, then drip-feeds the rest one phase at a time. Every phase is a copy-paste prompt for your agent with its own verification before the next unlocks, so Waitwell moves from an empty folder to a running MVP without you ever holding the whole plan in your head.
Progress saves across every device, and the workspace always reopens on the exact step you left, so a build that runs over several weeks survives them instead of dying in a browser tab you eventually close.
How you actually build it
Connect your coding agent once. It pulls the current phase straight from your kit over MCP: the exact prompt, the outcome to aim for, and the check to run before it moves on. You review and ship, it does the typing.
No copy-paste juggling, no thread to lose. The kit stays the single source of truth, and your agent works through it one phase at a time, verifying its own work at each step before the next phase is unlocked.
Take the context file, free
This is the AGENTS.md that keeps your coding agent on scope for the entire build: what Waitwell is, who it is for, the stack, the non-goals, and the rules it must follow. Copy it into your project now, no account needed, and your agent is briefed before you write a line.
# Waitwell Fill the cancelled appointment ## What this is The waitlist is offered the slot in clinical priority order, one at a time, with a short acceptance window. The receptionist does nothing. The slot fills or it does not, and either way nobody spent an hour on the phone. ## The problem it solves A dental practice loses a few thousand a month to short-notice cancellations. The receptionist would need to ring twenty people to fill a Thursday 3pm, and the reception phone is already ringing, so the slot goes empty. ## Who it is for A single-site dental, physio, or private GP practice where an empty chair is pure lost margin. The receptionist would have to ring twenty people to fill a Thursday afternoon, and the phone is already ringing, so the slot goes empty every week. Nobody has decided to accept the loss. There has simply never been an hour spare to prevent it. ## Stack Next.js + Supabase ## Non-goals Do not build features outside the core job above. This product exists to do one thing well. Every extra feature is a reason it does not ship. ## Rules for the agent - Build one phase at a time. Do not run ahead into later phases. - Validate input at every boundary where data enters. - Never put a permission or plan check in client code. - Ask before adding a dependency that a few lines would cover. - If something is ambiguous, say so rather than inventing a requirement. --- Context file from UpgradIQ · idea waitwell · prompts kit-v4
Then start free to get the ten-phase kit and run the first prompt.
The path to a running MVP
Foundation
Scaffold the stack, then wire the data model and sign-in. It is the skeleton Waitwell stands on, and it goes up in an evening rather than a lost week of config.
The product
Build the core feature end to end, then wire how it charges. This is where Waitwell finally turns into something that a stranger will actually pay you for.
Ship it
Test and harden, deploy it live, then open the launch-day toolkit that lands the first ten users who prove it.
Is Waitwell for you?
- You want revenue reasonably soon, not a science project
- You can give it evenings and a couple of weekends
- You can reach Small private clinics and dental practices
- You are not ready to talk to a first real customer
- You want it fully passive, with zero maintenance
- You expect it to find its own customers without you
The 3 sections that decide whether you should actually build it, plus the full kit, are one click away.
3 more sections decide whether you build Waitwell
You have the case and the plan. Pro opens how it makes money, the one risk that kills it, and the build notes, plus the 10-phase kit that takes Waitwell to a running MVP, on this idea and all 200.
How it makes money
Main risk
Build notes
What is free here, and what Pro unlocks
Frequently asked
Is Waitwell actually validated?
It scored UIQ 81 with a GO verdict, weighed across eight sub-scores on the same rubric as every idea. GO means 75 and above, so demand and buildability were judged, not guessed.
What stack does it use?
Waitwell is built on Next.js + Supabase, chosen because a coding agent can carry most of it. You are not fighting infrastructure, you are shipping the feature that matters.
How long to a running MVP?
The kit is ten phases, drip-fed one at a time so you always know the single next step. An evening and a weekend for the lighter builds, a few focused weeks for the deeper ones.
What does the $49 a month mean?
It is the price the model suggests Waitwell could charge its own customers, not a fee to us. It is here so the money question is answered before you build, not after.
Which agent do I need?
Any capable coding agent: Claude Code, Cursor, Lovable, or Bolt. Every phase is a copy-paste prompt with its own check, so the agent does the typing and you keep the judgement.
What is free versus Pro?
The whole case above is free: the problem, timing, solution, buyer, and the full score. Pro adds how it makes money, the one risk that could kill it, and the full kit that carries Waitwell from an empty folder to a running MVP.
More like Waitwell
All 10 Health tech ideasBuild Waitwell, not just read about it
You have the problem, the timing, the solution and the buyer. A plan opens how it makes money, the risk that kills it, and the kit that takes it to a running MVP.
Start building Waitwell