> However, for some reason, both Gemini and ChatGPT tend to argue with me

The trick here is: "Be succinct. No commentary."

And sometimes a healthy dose of expressing frustration or anger (cursing, berating, threatening) also gets them to STFU and do the thing. As in literally: "I don't give a fuck about your stupid fucking opinions on the matter. Do it exactly as I specified"

Also generally the very first time it expresses any of that weird shit, your context is toast. So even correcting it is reinforcing. Just regenerate the response.