[gwd]

I've used both aider and opencode with both Opus and Sonnet. Opencode, at least initially, used Claude Code's exact prompt; and I found the results surprisingly different.

Perhaps it shouldn't be surprising; after all, we do want the LLMs to listen to the prompts and act differently. And, the Claude team will presumably be tuning both Claude and Claude Code's prompts to each other optimize their own experience, so it's perhaps not surprising that Claude + Claude Code's prompts well together.