- Property and worker scope are explicit
- Bind tenant, property, team, worker relationship, role, manager, local zone, business date, purpose, allowed data, accessible support, applicable rule set, emergency route and retention before retrieval or routing.
- Publication never substitutes for acceptance
- Version roster drafts and changes, distinguish availability, offer and acknowledgment, preserve decline, call-out and correction, notify through accessible channels and leave unresolved coverage visible to accountable managers.
- Assignment is qualified and minimal
- Use authoritative identity, qualification, access and capacity; apply labor and priority rules deterministically; minimize guest and worker detail; prohibit inference of fitness, willingness, protected traits or sensitive condition.
- Work and handoff states require actors
- Authorize transitions, preserve source and reason, require explicit task acknowledgment and receiver acceptance, expose blockers, reopen unsupported closure and never equate message delivery with responsibility or service.
- Worker and safety authority stay independent
- Support correction, decline, hazard reporting, safe stop, complaint and human review; route urgent incidents outside the ordinary queue; prohibit model-only scheduling, ranking, surveillance, discipline or adverse decisions.
- Tools and outcomes are reconciled
- Refresh eligibility and policy state, use bounded idempotent commands, resolve unknown effects before retry and join schedule, task, service, asset, safety, clock, payroll, dispute and later outcome evidence without collapsing their meanings.