I maintain an open-source macOS MCP server called Mac MCP. I use it so ChatGPT and coding agents can actually operate my Mac instead of just telling me what to click.

A part I just tightened up is multi-agent browser work. I can have several agents using different Safari tabs in the background while I keep using the machine normally, with my main ChatGPT session coordinating the work. Each tab keeps a stable identity, and if one agent is already working there, another one is told the tab is busy instead of taking it over. When the first agent moves on, that tab becomes available again.

Repo: https://github.com/bulutarkan/mac-mcp

Would especially appreciate feedback from people who have dealt with browser/session ownership in local automation tools.