Explain the internal working of the Gateway's node.invoke frame routing?

Internally, OpenClaw's Gateway communicates with the Agent Runtime and Local Execution processes using a message format referred to as node.invoke frames.

• The Gateway receives an incoming request, whether from a chat channel or a control client, and wraps it as a frame directed at the appropriate Agent Runtime instance
• The Agent Runtime processes that frame, and when a tool call is needed, the Gateway routes a corresponding frame to the Local Execution process responsible for actually carrying out that action
• Results flow back through the same frame-based routing, letting the Gateway broker the entire round trip of a single agent run

This framing is what lets the Gateway act as a genuine broker rather than a simple pass-through, every agent run on an OpenClaw instance flows through this same routing mechanism, which is also why the Gateway's health is central to the whole platform's reliability.

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