MCP servers, extensions, ad-account automation
What an assistant can reach once you connect it to something. MCP servers, extensions and connectors: what each one actually does, which credentials it asks for, and where the API behind it draws the line — including the ad platforms, where a version that expires takes working automation with it.
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GitHub made the Customize tab generally available on August 25. It puts MCP servers, plugins, skills and canvases in one browsable place, with trending and category listings — the shape of an app store, applied to connectors.
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A plug-in in the ChatGPT desktop app reads and searches your iMessage, SMS and RCS threads and sends messages through Messages on your behalf. By default nothing goes out until you approve both the text and the recipients. There is a switch that removes that step, and OpenAI's own documentation argues against using it.
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