# Phase 02 Tasks

## Transition Engine

- [ ] Implement transition guard and mutation logic.
- [ ] Implement optimistic concurrency handling.
- [ ] Implement transition event and audit emission.

## Filtering and Routing

- [ ] Implement deterministic gate-first pipeline.
- [ ] Implement confidence band decision handling.
- [ ] Implement routing rule engine with explainability payloads.

## Assignment

- [ ] Implement assignment preview and execute parity.
- [ ] Implement coverage guarantee and overflow semantics.
- [ ] Implement assignment metrics output.

## Live Runtime

- [ ] Implement admin cursor operations and conflict-safe update model.
- [ ] Implement cohort window control.
- [ ] Implement real-time event propagation path.

## Notifications and Audit

- [ ] Implement default event producers for stage transitions and outcomes.
- [ ] Implement immutable audit payload structure.