I do something very similar for the planning phase, as well as for the code-review after a task is complete. I like to switch between opus in claude code and g

I do something very similar for the planning phase, as well as for the code-review after a task is complete. I like to switch between opus in claude code and gemini cli, so I can work from the same files rather than copying and pasting things. One tip I picked up from a video recently to avoid sycophancy was to take the resulting spec and instead of telling the reviewing LLM "I wrote this spec", tell it "an engineer on my team wrote this spec". When it doesn't think it's insulting you, it tends to be a bit more critical.