Okay, this is slightly horrifying to me but also a bit genius...

But I guess Anthropic models are trained for Claude Code's tool call shape (i.e. the edit tool). Does it deal well enough with the MCP tools that Deepseek harness gives the model instead?

I don't think that "Anthropic models are trained for Claude Code's tool call shape". It's all about system prompt and model description (which is part of that prompt).

I observe that most models can deal well with the tools you provide.

Form time to time I analyze my sessions to see which tools could improve my (or my agent's) work. E.g. a background timer/watcher is on my todo list, so that I can chat with the agent session while its waiting for some shell response.

> Okay, this is slightly horrifying to me but also a bit genius...

If you're old enough to remember CGI web services, originally every request to a web server for non-static content launched a binary. Most of the web ran on that approach for a long time, later optimized with things like FCGI.