Returns the make Effect of a builtin implementation (provided by ModuleRuntime during assembly, avoiding external code
capturing internal closures/state).
For kernel implementors only (e.g. core-ng) to implement behavior-equivalent replacements or thin wrappers.
Not an app-facing contract; must not be depended on from business Flow/Logic.
Returns the make Effect of a builtin implementation (provided by ModuleRuntime during assembly, avoiding external code capturing internal closures/state).