| receiver interaction | caller/reader, receiving Work, request, timing, next action |
| interface form | query/view/API/message/schema/report/file and why it fits the Work |
| request semantics | parameters, identifiers/schemes, configuration/effectivity, windows, units/codes, permissions |
| response semantics | claims, grain, scope, interval, units/codes, source IDs, accepted loss, permitted use |
| branch model | qualified, unmatched, incompatible, unresolved identity, conflict, non-comparable, stale, inaccessible, source error, partial |
| provenance/currentness | source/edition, times, rule versions, derivation/trace, freshness status |
| protection/authority | verified and assumed conditions, disclosure limits, action not authorized |
| challenge/return | stable path to source, semantic premise, mapping, implementation, or direct decision owner |
| service/conformance | action-sensitive service conditions, examples, errors, compatibility/deprecation, reopen |