Why can some models write and modify files while others can't?

Discussions
1

Just trying to understand why some models like Deepseek r1 can’t write files but others like Sonnnet 3.7 can. Is this a setting somewhere, or a prompt I need to provide the AI so it knows?

2

some models are trained better for tool usage or specifically work better in the cursor environment. you can always attempt to write rules, but at baseline, it may make absolutely zero difference.

you’ll have to settle with the models that are specifically recommended for agentic mode in the environment.

happy hunting

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3

it depends on what the modal was made for

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4

Here you can see that agent is supported and can be edited deepseek is not supported and can only ask

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5

DeepSeek can definitely write files, but it may not work great in the Agent mode, as it has to function in a certain way to work in Agent mode, and the DeepSeek models have not had the right training to work well in this way.

In manual mode, they should work great!

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6

This ^
You can rely on raw command or powershell scripting outside of agent mode, and DeepSeek can manage that way decently. Its just not good with Cursors native tool usage as of yet.