Vowbell: a wedding website with RSVPs and a guest list for the couple
A wedding site with a countdown, RSVPs by invite code with meal choices, CSV guest import, and a live RSVP tracker.
Agent specs
- Agent
- Claude Code, Opus 5.5 Medium
- Time
- 23 min
- Cost
- $7.87*
Agents work faster and more accurately on Elements.
* Cost at API rates, September 2026.
Run it yourself
Paste this prompt into your AI agent. You get the finished app on your own machine, ready to change however you like.
Install elements: curl -fsSL 'https://install.elements.dev?os=darwin' | sh && export PATH=~/elements/bin:$PATH Create an Elements app from the elementscode/demo-vowbell scaffold: cd ~/elements/projects elements create vowbell -scaffold=elementscode/demo-vowbell cd vowbell Start the app.
How it's built
Vowbell needed a public wedding site, RSVPs by invite code with a confirmation email, a guest list the couple can import from a spreadsheet, and a tracker that fills in as replies arrive. Each of those is a part of Elements, so the agent spent its 23 minutes on the wedding itself.
What Elements gave the app
- RSVPs as function calls. The RSVP page finds a party by its invite code and saves every guest's answer and meal choice in one transaction through an
@rpcwritten right in the page's template, then emails a confirmation. - A live tracker. Every RSVP and guest list edit notifies a channel, and the couple's tracker listens on it, so a reply shows up in the counts while they watch. The replies export as CSV.
- Guest import. The guests page sends a CSV file to an rpc that reads the rows into parties and gives each one a six-character invite code from an alphabet chosen to read cleanly off paper.
- Site editing and photos. The couple edits the story, events, hotels and gallery through rpcs. Photo uploads arrive as
Filevalues and are served under their content hash, and the seed photos and display font ship as assets. - Data from SQL files. Two migrations define the wedding and seed the couple, their story and gallery, events, hotels, and 40 parties with 80 guests, about half of whom have replied.
- Sessions. Every admin rpc and the CSV export check that the signed-in user is one of the couple.
What the project server gave the agent
The project server runs alongside the agent and answers as soon as a file is saved: it type-checks the templates, TypeScript and SQL, applies migrations and reruns the tests, so every question came back right away and the agent kept building.
What shipped
The app type-checks with zero errors and all 18 tests pass. Every page works on desktop and phone, and a guest's RSVP shows up on the couple's tracker as it arrives.
The code
Build it from scratch
To watch your agent build this app from an empty project, use the prompt we used instead. It takes longer than starting from the finished app above.
Install elements: curl -fsSL 'https://install.elements.dev?os=darwin' | sh && export PATH=~/elements/bin:$PATH Create an Elements app: cd ~/elements/projects elements create vowbell cd vowbell Start the app, then build this: Build a wedding website named vowbell. GUEST - A beautiful home page: the couple's names, date, a countdown, the story, schedule of events, travel and hotel info, and a photo gallery. - RSVP with a code from the invitation: attending or not for each person in the party, meal choice, dietary notes, and a song request. - A confirmation email. COUPLE (admin account) - Edit the site's content and photos. - Guest list with parties and invite codes; import from CSV. - RSVP tracker: attending, declined, waiting, meal counts, and a CSV export. Seed the couple, the site content with photos, and eighty guests in forty parties, about half responded. Show the admin login on the sign-in page. The RSVP tracker updates in real time.
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