My addition to this RLM discourse is this reply from Omar in Jan
At the time the paper came out some of us were questioning whether RLMs were just what harnesses like Claude Code were already doing but Omar had an important point that they were missing recursion. With Dynamic Workflows Claude Code finally has built in recursion, albeit only one level. That's great news for us practitioners because we can now coin new terms like RLM 2.0, GraphRLM, Hybrid RLM, Agentic RLM and so on.