# Internal Interfaces

## Orchestrator Application Ports

### TaskRepository

- create task
- update task
- get task by id
- list active tasks

### GraphRepository

- save graph
- get graph
- update node state
- list ready nodes

### ConfirmationRepository

- create confirmation
- get confirmation
- resolve confirmation

### WorkerRepository

- register session
- update heartbeat
- assign command
- complete command

### EventStore

- append event
- list events by task

### PolicyEvaluator

- evaluate action descriptor against project policy

### ModelRouter

- execute model request and return structured invocation result

### ToolGateway

- call MCP tool and return normalized result

### WorkerGateway

- dispatch command to worker and receive normalized result

## Design Rule

Application services зависят только от этих портов.
Ни один use case не должен напрямую импортировать HTTP handlers, DB session objects или конкретный MCP/WebSocket client.