Wymcp tool references — the registry of pointers at where knowledge lives.

A thin boundary over YmerNode.References: bare-verb actions over a single entity, with this module wiring only the framework's callbacks. What the registry is, and why a reference is a pointer and never content, live in the context's own moduledoc.

Destructive, because remove hard-deletes a stored reference. Closed-world all the same: the tool touches nothing but this node's own database — it is the RESULTS that point outward, and following one is the caller's own call to make.