Real AI agent use cases, with sources and setup prompts

Turn your air conditioner's app into a switch in the Mac menu bar

A builder shared a Claude Code prompt that has Opus 5.5 check for an official API or Home Assistant integration first, and only if none exists analyze how the AC's own phone app talks to the unit, then build a power and temperature switch for the Mac menu bar. It warns to only do this with devices you own and to check the vendor's terms.

$17/mo1 hourAdvancedSource linked

Source

@Voxyz_ai on X · 2026-10-13

Written in our own words. Credit to the original author. Link checked 2026-10-22.

What they did

A builder shared a Claude Code prompt that has Opus 5.5 check for an official API or Home Assistant integration first, and only if none exists analyze how the AC's own phone app talks to the unit, then build a power and temperature switch for the Mac menu bar. It warns to only do this with devices you own and to check the vendor's terms.

Result (as claimed)

One person's AC got a working menu bar switch from one prompt and was later controlled from AR glasses (417 likes).

Tools they used

Cost: Claude Code: from $17/mo; Claude Opus 5.5: from $4 in / $20 out per 1M tokens.

Set it up

  1. Define the job

    Say exactly what you want done and what the agent may and may not do on your behalf.

  2. Share only what is needed

    Give Claude Code the minimum files or access required. Avoid sharing passwords in chat when a safer login flow exists.

  3. Review the plan

    Ask the agent to show its plan or draft before it acts, and approve each step that has real consequences.

  4. Check the result

    Confirm the outcome yourself (order placed, request sent, document understood) and keep a record.

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: Turn your air conditioner's app into a switch in the Mac menu bar
What the original author did: A builder shared a Claude Code prompt that has Opus 5.5 check for an official API or Home Assistant integration first, and only if none exists analyze how the AC's own phone app talks to the unit, then build a power and temperature switch for the Mac menu bar. It warns to only do this with devices you own and to check the vendor's terms.
Reported result (as claimed by the author): One person's AC got a working menu bar switch from one prompt and was later controlled from AR glasses (417 likes).
Source: https://x.com/Voxyz_ai/status/2110113349857943747
Tools they used: Claude Code, Claude Opus 5.5, macOS
Category: Personal & life

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.

The Daily 5

Get five new use cases tomorrow morning

Free. Real sources. Unsubscribe any time.

Guides for this use case

How to vibe code an app with Claude Code · How to build a Mac menu bar app with AI · How to fix Wi-Fi and secure your home network with AI · How to build a smart home and voice assistant with AI agents

Related use cases