One of the cool aspects of having a dozen different MCP servers connected to Claude are the random serendipitous interactions that emerge.
Yesterday, I was working on a little programming project. Opus 4 was chugging along nicely, reading files on my Mac, deciding how to implement something, checking data against a source I was working on. The usual AI assistant stuff, really.
Then I noticed something unexpected in the logs. Claude had fired a call to the OpenAI MCP server (that little experiment I did to allow Claude to ask questions to OpenAI models). I paused to see what was happening.
Claude had asked GPT-4o how to read the end of a file. Nothing groundbreaking — just a simple technical question. GPT-4o provided an answer, and the process continued seamlessly. If I hadn’t been paying attention to the logs, I would have missed it entirely.
Here’s the thing: I’m fairly certain this information exists in Opus 4’s knowledge base. It’s not like reading the tail of a file is some obscure programming technique. But for some reason, in that moment, Claude decided it wanted a second opinion. Or perhaps it needed some comfort from another model?
It felt a little magic.