The seat whose definition delivers a requirement, among those the entry's
catalog graph revision names, is resolved first: its holder from the
placements' holds, as seat-holders keeps them; a delivering seat no
placement holds holds the entry, naming the seat. A hold now names the
requirement, the seat and each candidate {node, module}; an optional
requirement nothing provides is left absent. The catalog entry gains
contributes, filled by the indexer, and requires names every requirement
as Wants lists them, optional ones included (the module graph and the
assigner's halves leave the optional ones out by the entry's manifest).
A contributed requirement gives a contribution edge to the same provider.
Builds: design 47 G §708, §709, §357; lead answers A-167, A-229
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h
The delivery repository's contracts and SDK live under modules/ as
mesh-delivery-contracts and mesh-delivery-sdk, their Go module paths
renamed to match the folders (the TypeScript names already did), and
every importer in mesh-delivery, mesh-catalog, mesh-host, mesh-tools
and mesh-sdk follows in the same group: a design as it should be, one
path per module, checked by the group's check building every importer.
Builds: design 47 G §427, §88
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h
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