68kMLA Classic Interface

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AgentBridge: Let an AI agent control your Classic Mac
Posted by: physics32 on 2026-04-20 05:56:11
AgentBridge lets an AI agent like Claude control a Classic Mac through a shared folder. Drop the app in a folder alongside inbox/ and outbox/ directories, launch it, and the AI can list windows, open apps, type text, read the clipboard, navigate menus, click, drag, all through the Mac Toolbox.

I built it to control my classic Mac connected to a Synology NAS via AFP. It works on real hardware and BasiliskII. There's a 68k binary and a PPC binary.

The transport is intentionally agnostic, the protocol is just text files in a folder. AFP, SMB, emulator shared folders, anything that lets both sides read and write files works. Someone's already looking at replacing the file I/O with RS-422 serial, which would bring it to Macs that predate AppleTalk networking including the 128k.

Built with Retro68.

GitHub: https://github.com/SeanFDZ/agentbridge
Posted by: adespoton on 2026-04-29 16:17:38
So this should work to let an actual person control a Classic Mac as well, shouldn't it? But unlike leaning on Apple Events, it uses the toolbox, so should work on older OSes and apps with no published dictionaries.
Posted by: physics32 on 2026-04-29 16:26:04
Right, a human could drive it the same way, the AI is just one client. Toolbox-level input injection doesn’t care whether an app supports Apple Events at all. If it accepts keyboard and mouse input, it works.
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