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DuncanandWill Pfleger
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Phase 2 (revised) of the cross-workspace agent library: the read side of the definition-instance relation resolver and the inbound kind:30177 canonical-linkage rule, with the interim fail-closed new-link posture. No instance-removal/insertion coordinator (that is Phase 4b). Relation resolver: MutationRoute::for_linked_definition resolves an instance's persona_id against the raw keyless definition store to classify its linkage (persona_id IS the linked definition's slug). This is the one canonical join every library mechanism uses; nothing re-derives the persona_id join ad hoc. Inbound 30177 canonical linkage: apply_inbound_managed_agent now consults the resolver and freezes two linkage-authorship cases, applying only safe per-instance fields (name, parallelism, respond_to, respond_to_allowlist): - OwnedByLibrary: the matched instance is linked to a projected definition and the event would clear or re-point persona_id. - InadmissibleNewLink: the event would newly link a plain instance to a projected definition (only the Phase-4b coordinator may admit). A frozen linkage re-retains the local record at a monotonically newer created_at (via retain_agent_record) so the relay head converges back to the library-authoritative linkage, mirroring the 30175 rule. Plain-to-plain relinks and no-op events apply exactly as at head. The round-2 projected persona preflights stay intact in front of this. Co-authored-by: Will Pfleger <pfleger.will@gmail.com> Signed-off-by: Will Pfleger <pfleger.will@gmail.com>