Social Proof Notifications
Show visitors that other people are genuinely signing up and buying, without inventing it.
What it adds
A small recurring toast on public pages announcing recent, real signup or purchase activity.
What your agent is told to do
5
What your agent is told to do
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Draw every message from real records the app already stores. Never seed the queue with sample or placeholder activity, and never fabricate a purchase that did not happen.
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Render the toast through the app's existing Toast Notifications region rather than adding a second floating layer, so stacking, dismissal, and screen reader announcement already behave correctly.
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Reduce each event to the least identifying form that still reads as real: a first name or initial, a region no finer than country or state, and a relative time.
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Give the visitor a permanent mute that survives navigation and return visits, and honour it site-wide rather than per page.
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Do not run these on signed-in application screens. They are a landing page device, and inside the product they read as noise interrupting someone trying to work.
Edge cases it handles
8
Edge cases it handles
8- A message must never carry a full name, an email, a street-level location, or an order total that lets a stranger identify the buyer.
- When recent activity is too thin to be honest, suppress the feature entirely rather than recycling the same three events or reaching months back for something to show.
- Cap how often a toast appears and how many appear per session. A reader who sees six in a minute stops trusting the page.
- Pause the rotation while the visitor is typing in a form or has a field focused, and resume only once they stop.
- The mute control must be visible without hovering, reachable by keyboard, and obviously a permanent off switch rather than a dismissal of one message.
- The toast must not sit over the primary call to action, the cookie banner, or a support launcher on small screens.
- Respect reduced-motion preferences: fade rather than slide, and never animate continuously.
- A visitor who has already converted should not be shown proof that other people are converting.
Definition of done
8
Definition of done
8- Every displayed event corresponds to a real record in the database.
- No message exposes a full name, an email address, or a location finer than region.
- The feature disables itself automatically when recent activity falls below the honesty threshold.
- Frequency is capped per session and the rotation pauses during form input.
- A permanent mute persists across pages and across return visits.
- Toasts reuse the existing notification region and never obstruct the primary action on mobile.
- The feature matches the existing design system.
- No existing functionality is broken.
Related features
Quote Calculator
Quote Calculator
Let a visitor answer a few questions and get an honest price estimate on the spot.
What it does
A guided question flow that produces a priced estimate from server-held rules, with a saved copy for follow-up.
How it works
- 1 Build the question flow on the app's existing Multi-Step Form and Conditional Form Fields rather than a new one-off wizard. Showing and hiding questions based on earlier answers is exactly what conditional fields already do.
- 2 Keep every rate, multiplier, minimum, and discount on the server. The browser sends answers and receives a priced breakdown; it never holds the price list and never does the arithmetic that produces the total.
- 3 Show the estimate as itemised lines with a total, not a single number. A visitor who can see which answer added which cost will trust the figure and will adjust an answer instead of leaving.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/quote-calculator
Link Shortener
Link Shortener
Turn long URLs into short branded links and see how many people actually clicked.
What it does
A short-link service with custom or generated slugs, a redirect endpoint, and per-link click counts.
How it works
- 1 The app already has Shareable Deep Links and Signed Share Links. Extend that machinery with a short-slug alias rather than standing up a second, parallel link table that will drift out of sync with it.
- 2 Let a user accept a generated slug or type their own. Validate a custom slug on the server against reserved application routes, existing slugs, and profanity, and say which rule failed rather than silently generating a different one.
- 3 Record a click on the redirect itself: timestamp, referrer, coarse device type, and coarse location. Feed those into the app's existing Event Tracking so the numbers appear beside the rest of the analytics instead of in an isolated counter.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/link-shortener
Waitlist
Waitlist
Capture demand before you're ready to open the doors.
What it does
An email capture that gates access and lets you admit people in batches.
How it works
- 1 Add an email capture on the landing page, storing entries with a timestamp and source.
- 2 Give yourself an admin way to admit people, individually or in batches.
- 3 Send an email when someone is admitted, with a unique access link.
Copy the prompt
No account needed
Add this feature to my app:
https://addthisfeature.com/x/waitlist
How it works
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1
Copy the link
Grab the Markdown instruction URL for this feature.
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2
Give it to your AI
Paste it into Claude Code, Cursor, v0, Lovable — whatever you build with.
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3
It inspects, then implements
Your agent reads your existing app first, then adds the feature to fit it.
Works with your stack
These instructions are written to adapt. They tell the agent to detect your framework, match your existing design system, and reuse what you already have — rather than assuming a particular stack.
Need it tighter than that? Customize the feature and tell it exactly what you're running.