#:schema ../../../schema/clause.schema.json

[govctl]
id = "C-DOWNSTREAM-CONTRACT"
title = "Downstream contract"
kind = "normative"
status = "active"
since = "0.1.0"

[content]
text = """
After successful W2 allocation, downstream CP shared-KV direct-write consumers MAY assume that newly allocated logical pages satisfy the owner-lane invariant for their corresponding request-local page positions.

W2 MUST NOT introduce a new planner collective.

W2 MUST NOT require W3, W4, W6, or W7 consumers to recompute request-local page owners from raw prefix and extend lengths when the allocation result and batch plan metadata are already available.

**Rationale:** W2 exists to establish a stable allocation boundary. Later workstreams should validate and consume the contract instead of re-deriving allocation ownership independently."""