Initial Daily Campaign Agent release

2026-09-16 21:00:13 +08:00
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+# 架构与数据流
+
+```mermaid
+flowchart TB
+  subgraph Browser
+    C[assistant-ui Composer]
+    T[Thread + Toolkit Tool UI]
+    E[Event Timeline]
+    S[HarnessClientStore]
+    C --> S
+    S --> T
+    S --> E
+  end
+  subgraph Server
+    F[Fastify API]
+    R[SessionRegistry]
+    ES[Memory EventStore]
+    AB[ApprovalBroker]
+    AS[AttachmentStore]
+    MS[ModelConnectionStore]
+    P[Pi AgentSession]
+    RL[DefaultResourceLoader]
+    SW[SafeWorkspace]
+    F --> R --> P
+    R --> ES
+    R --> AB
+    R --> AS
+    R --> MS
+    P --> RL
+    P --> SW
+  end
+  S -->|JSON / multipart| F
+  ES -->|SSE sequence| S
+```
+
+每个 Web Session 有随机 ID、独立 cwd、SessionManager、事件 sequence、运行锁、AbortController、Approval、Attachment 和 ModelRuntime。Fastify 只解析协议、组合依赖并序列化错误；核心状态在 interface + memory implementation 中。
+
+消息 POST 先完成模型/附件/并发校验，接受后立即返回 `202 runId`。后台 `prompt()` 的流式 Pi Event 经单一 adapter 映射为 HarnessEvent。SSE reducer 按 sequence/eventId 去重；assistant-ui External Store 只投影 reducer 结果。
+
+Tool 先经过 Pi extension `tool_call`。只读工具做 workspace/Skill canonical path preflight；保存工具等待服务器 ApprovalBroker。Tool 未通过 preflight 时永不执行。