add update_inner_state tool, life loop with tools, timeout protection
- update_inner_state: LLM can update its own persistent inner state - inner_state injected into chat loop system prompt (read-only) - Life Loop now uses run_openai_with_tools (full tool access) - Life Loop LLM calls wrapped in 120s tokio::time::timeout - All reqwest clients: 120s timeout (whisper: 60s) - doc/life.md: life loop architecture design doc - todo.md: removed completed items
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doc/life.md
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doc/life.md
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# Life Loop 设计
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## 核心理念
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小乖不只是一个对话机器人。对话是她跟用户交流的窗口,但 Life Loop 才是她"活着"的地方。
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## 双循环架构
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```
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Chat Loop (被动) Life Loop (主动)
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收到消息 → 处理 → 回复 每 30 秒醒来 → 检查 timers
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context: context:
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persona persona
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inner_state (只读) inner_state (读写)
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对话历史 + scratch timer payload
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memory_slots 无对话历史
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tools (全量)
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决策:
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- 发消息给某个 chat
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- 更新 inner_state
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- 什么都不做
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┌─── SQLite (共享状态层) ───┐
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│ inner_state │
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│ timers │
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│ conversations/messages │
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│ memory_slots / scratch │
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│ config │
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└───────────────────────────┘
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```
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## 状态层级
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| 层级 | 名称 | 生命周期 | 用途 |
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|------|------|---------|------|
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| persona | 人格 | 永久 | 定义小乖是谁 |
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| inner_state | 内在状态 | 永久,LLM 自更新 | 小乖对当前情况的感知 |
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| memory_slots | 记忆槽 | 永久,LLM 管理 | 跨会话的关键事实/偏好 |
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| summary | 对话摘要 | 按 session | 长对话的压缩记忆 |
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| scratch | 草稿 | session 内 | 当前任务的工作笔记 |
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## Timer 系统
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### 调度格式
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- 相对时间:`5min`, `2h`, `30s`, `1d`
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- 绝对时间:`once:2026-04-10 09:00`
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- 周期性:`cron:0 8 * * *`(标准 cron 表达式)
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### 触发流程
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```
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Life Loop tick
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→ 扫描 timers 表,找到 next_fire <= now 的
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→ 构建 LLM 请求:
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system: persona + inner_state + 当前时间
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user: [timer] {label}
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→ 调用 LLM(无工具,轻量)
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→ 发送回复到 chat
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→ cron 类型: 计算下次触发时间,更新 next_fire
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→ 一次性: 删除
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```
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### 演进方向
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- 给 Life Loop 的 LLM 调用也加工具(查待办、执行命令)
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- inner_state 自动更新(对话结束后 LLM 反思)
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- 预设 cron(晨间/晚间报告)
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- 事件驱动(不只是时间驱动)
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