Commit Local Term Effects Together

Context

Coverage changes also affect chapter connections, grants, organizational people, events and attention. The local write paths group those effects under holding locks.

Decision

A supported term write takes the membership lock and commits its local dependent effects in the same transaction.

Alternatives Considered

Write the term, then fan out asynchronously: Post-commit fan-out would expose partial coverage and require repair of each dependent record.

Lock the owner for every term write: Owner-wide locking would protect cross-program conflicts but also serialize otherwise independent holdings.

Consequences

Local failure rolls back the complete dependent write. Membership locking leaves the known cross-program exclusivity race for concurrent additions. Large organizational derivations lengthen the writer’s transaction.