# Runtime 架构

Agent Runtime 负责生命周期管理，不直接承担所有业务能力。

核心对象：

- Agent
- Session
- Run
- Task
- Plan
- Step
- ToolCall
- Observation
- Memory
- Result

生命周期：

```mermaid
stateDiagram-v2
    [*] --> Created
    Created --> Running
    Running --> Waiting
    Waiting --> Running
    Running --> Completed
    Running --> Failed
    Failed --> Retrying
    Retrying --> Running
    Completed --> [*]
```