One prompt turns your AC into a Mac menu bar switch: reverse-engineer device apps with Opus 5.5

MicahBerkley · x · 2026-10-14

A viral recipe: hand your device's official app to Opus 5.5 in Claude Code, let it reverse-engineer the protocol, and get a native control switch — one person turned their AC into an MCP server and ported it to AR glasses in 15 minutes. Heaters, lights and robot vacuums work the same way; only hack devices you own and check vendor terms.

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