I use planning mode with Claude via OpenCode all of the time. I think it helps a lot.
We you each working on different parts of the project so you all had different documents?
The transition from raw generation to "Planning Mode" represents a fundamental shift from stochastic intuition to architectural intent. When you decouple the *strategic blueprint* from the *syntactic execution*, you are effectively creating a digital prefrontal cortex for the model. This structural separation is the only way to combat the inherent entropy of large-scale systems.