LogicTrail
  • Trails
  • Check my app
  • Pricing
  • Sign in
  1. Trails
  2. /
  3. Keeping it running

Keeping it running

Launch is the start, not the end. After it, apps break in quieter ways: errors only customers see, an AI feature whose credits ran out, a domain that lapsed on an expired card, a debug line that logged passwords, an update that broke the deploy, a model the provider switched off. This trail teaches you to notice and prevent each one.

Scenarios
6
Total time
23 minutes
Free to try
The first one

6 scenarios on this trail

  1. Next up · Free · 4 minThe error nobody sawSign-ups halved this week. No alert, no error on your screen. Then a customer writes: 'your form just says Something went wrong'.
  2. Stop 2 · Pro · 4 minThe AI that went quietYour app's Summarise button worked for months. Since Saturday it spins, then shows nothing. You haven't changed a line.
  3. Stop 3 · Pro · 4 minThe site that vanishedMonday morning your site shows a page of ads, and emails to your support address bounce. Your code and hosting haven't changed.
  4. Stop 4 · Pro · 4 minThe password in the logsTo debug a sign-in bug, your AI added a log line. Weeks later you open your hosting logs and see customers' passwords in plain text.
  5. Stop 5 · Pro · 4 minUpdate everything, deploy nothingYou asked your AI to 'update everything to the latest versions'. The app runs on your laptop, but the deploy fails and the live site is stuck on the old version.
  6. Stop 6 · Pro · 3 minThe model that retiredYour chatbot stops answering overnight. The logs say the AI model 'does not exist'. It existed yesterday.

Other trails

  • Who may see what

    Sign-in, permissions, and the leaks AI-built apps ship most often.

  • The life of a click

    Follow one button press from the browser to the database and back.

  • Money and secrets

    Keys, payments, webhooks, and reading what your AI changed.

  • Data you can lose

    Agents that reset production, backups that are a day old, rollbacks that break.

  • Bills that explode

    Open AI endpoints, bot traffic, fake signups and functions that loop forever.

  • Working with your AI agent

    Dangerous commands, fix loops, deleted tests, prompt injection and invented packages.

  • Launch day

    Emails that never arrive, sign-in errors, timeouts, stale prices and connection limits.

  • Accounts and privacy

    Login codes, reset links, email changes, account deletion and customer data sent to AI.

  • Don't trust the browser

    Prices, webhooks, uploads, form limits and coupons: what visitors can change, and what your server must decide.

  • Teams and sharing

    Removed members who keep access, invites anyone can use, exports that leak other customers, guessable share links.

  • Into the app stores

    Keys inside phone apps, store rejections, review sign-ins, old versions, deep links and over-the-air updates.

Sign in
  1. Next up · Free · 4 minThe error nobody sawSign-ups halved this week. No alert, no error on your screen. Then a customer writes: 'your form just says Something went wrong'.
  2. Stop 2 · Pro · 4 minThe AI that went quietYour app's Summarise button worked for months. Since Saturday it spins, then shows nothing. You haven't changed a line.
  3. Stop 3 · Pro · 4 minThe site that vanishedMonday morning your site shows a page of ads, and emails to your support address bounce. Your code and hosting haven't changed.
  4. Stop 4 · Pro · 4 minThe password in the logsTo debug a sign-in bug, your AI added a log line. Weeks later you open your hosting logs and see customers' passwords in plain text.
  5. Stop 5 · Pro · 4 minUpdate everything, deploy nothingYou asked your AI to 'update everything to the latest versions'. The app runs on your laptop, but the deploy fails and the live site is stuck on the old version.
  6. Stop 6 · Pro · 3 minThe model that retiredYour chatbot stops answering overnight. The logs say the AI model 'does not exist'. It existed yesterday.