Faultkeep: an error tracker for teams shipping web apps
A paste-in snippet reports uncaught errors, grouped by stack trace into live issues with charts, triage and email alerts.
Agent specs
- Agent
- Claude Code, Opus 5.5 Medium
- Time
- 32 min
- Cost
- $8.16*
Agents work faster and more accurately on Elements.
* Cost at API rates, September 2026.
Run it yourself
Paste this prompt into your AI agent. You get the finished app on your own machine, ready to change however you like.
Install elements:
curl -fsSL 'https://install.elements.dev?os=darwin' | sh && export PATH=~/elements/bin:$PATH
Create an Elements app from the elementscode/demo-faultkeep scaffold:
cd ~/elements/projects
elements create faultkeep -scaffold=elementscode/demo-faultkeep
cd faultkeep
Start the app.
The prompt
The exact prompt that built this app. Give it to your agent to build the app from scratch with Elements, or use it to compare what other tools make from the same ask.
Build an error tracker named faultkeep for web apps. - Accounts and projects. Each project has a DSN key. - An ingest endpoint that accepts JSON error events (message, stack trace, url, browser, release, user) authenticated by the key, and a small snippet to paste into a web page that reports uncaught errors to it. - Group events into issues by stack trace. Issue list: count, users affected, first and last seen, sorted by last seen or frequency. - Issue detail: the stack trace, a chart of events over time, tags, and the latest events. - Resolve, ignore, or assign an issue. A resolved issue that happens again reopens. - Email when a new issue appears or a resolved one comes back. Seed two users, two projects, and a week of events across about fifteen issues. Show the seeded logins on the sign-in page. New events and issues appear in real time.
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