You really have to use the exact prompts and agent scaffolding that you RL trained with. If you try Cline or Codex CLI with Devstral 2507, you'll be reasonably impressed, but then try OpenHands, and it's just a whole different ballgame. Convinced this is why Claude Code is beating cursor. My conclusion: Cursor needs a model, Claude needs an IDE, and they are definitely direct competitors.
@ericflo 💯 this.
Otherwise you make the agent being constantly confused about what's going on and fighting its own training.
