Real AI agent use cases, with sources and setup prompts

Build a crane game with narrated fairy tales for your kid

A fire alarm technician with no game dev background built his crane-obsessed 4-year-old a game with Claude Code: build houses, then tap them for a narrated fairy tale. No ads or in-app purchases.

$17/moWeeksIntermediateSource linked

Source

@littlecraneapp on X · 2026-10-17

Written in our own words. Credit to the original author. Link checked 2026-10-18.

What they did

A fire alarm technician with no game dev background built his crane-obsessed 4-year-old a game with Claude Code: build houses, then tap them for a narrated fairy tale. No ads or in-app purchases.

Result (as claimed)

In beta testing.

Tools they used

Claude Code

Cost: Claude Code: from $17/mo.

Set it up

  1. Write a one-page brief

    Describe the app in plain words: who it is for, the 3 core screens or actions, and what "done" looks like.

  2. Start the project with your agent

    Open Claude Code and paste the brief. Ask it to propose a stack and a file plan before writing code.

  3. Build one slice at a time

    Ship the smallest working flow first, run it, then add features one by one. Commit after each working step.

  4. Test it like a user

    Click through on desktop and phone. Ask the agent to add basic tests and fix anything that breaks.

  5. Check security and ship

    Keep keys in environment variables, check auth and database rules, then deploy and share the link.

Copy the full setup prompt

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Build a crane game with narrated fairy tales for your kid
What the original author did: A fire alarm technician with no game dev background built his crane-obsessed 4-year-old a game with Claude Code: build houses, then tap them for a narrated fairy tale. No ads or in-app purchases.
Reported result (as claimed by the author): In beta testing.
Source: https://x.com/littlecraneapp/status/2111543406350528882
Tools they used: Claude Code
Category: Vibe coding & apps

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to vibe code an app with Claude Code · How to build AI agents for SEO and ads · How to make AI video ads and Reels with agents · How to vibe code a game with AI

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