The rules read Module.Needs from the indexer's modules value and each node's stated reads from its record in
`<node>.node` of the haves; an engine stating none is read as the baseline, so the node-engine's own new build, whose
manifest uses only the baseline's words, is not held. The hold is rule 7 (no rule of its own is numbered in this
release, ADR 0614 F2) with words naming the node's engine and each capability, which the want tools and view_tiers
already show.
Claude-Session: https://claude.ai/code/session_01JG73KG7AfSdh6FP8VrBqCn
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