I don't think so. there is a lot of tools with similar usage, some harness even bring their own internal tools for accurately manipulation.

also, even if some models claim that they have full 1M context window, some only work effective with the head or tail of the window, a proper harness tool will know about the limitation of the model and act accordingly.

then also the output format, the tool calling syntax, the quirks and gotchas of each model.

it is not simple as just throwing everything at the model, especially when your project has hundred of files or so.