# 事件映射

| Pi/Harness 事实 | HarnessEvent | assistant-ui/Timeline |
|---|---|---|
| prompt accepted | `run.started` | running |
| message text delta | `assistant.delta` | 合并文本 |
| assistant message end | `assistant.completed` | complete |
| tool execution start/end | `tool.requested/completed/failed` | Tool 卡片/Timeline |
| broker pending/resolved | `approval.required/resolved` | Dialog 与卡片状态 |
| canonical Skill read start/success | `skill.requested/loaded` | Catalog 高亮 |

未知 Pi 事件安全忽略。EventStore 原子分配 Session 内 sequence，客户端以 eventId 去重。