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Correct answer: B. Metadata that points at packages, which are hosted on the usual package registries.
Explanation
The principle — A metadata registry is an index, and an index is not a warehouse.
Why the key is correct — Package registries — such as npm, PyPI, and Docker Hub — host packages with code and binaries. The MCP Registry hosts metadata that points to those packages. The division is the whole design.
Why the others are wrong — It does not host the code, does not replace publishing a package, and does not run anything.
Remember this — Code lives on the package registry; the record of it lives here.
Sources — MCP first-party documentation.
Sources
“Package registries — such as npm, PyPI, and Docker Hub — host packages with code and binaries.”
“The MCP Registry hosts metadata that points to those packages.”
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