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docs/zh/api-details.md
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docs/zh/api-details.md
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# NanoClaw API 详解
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架构的实现级细节。高层设计请参见 [architecture.md](architecture.md)。
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## Channel Adapter 接口
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### NanoClaw Channel 接口
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```typescript
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interface ChannelSetup {
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// 来自 central DB 的对话配置 — 在 setup 时传入，不由 adapter 查询
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conversations: ConversationConfig[];
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// 主机回调
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onInbound(platformId: string, threadId: string | null, message: InboundMessage): void;
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onMetadata(platformId: string, name?: string, isGroup?: boolean): void;
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}
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interface ConversationConfig {
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platformId: string;
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agentGroupId: string;
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triggerPattern?: string; // 正则表达式字符串（用于原生 channel）
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requiresTrigger: boolean;
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sessionMode: 'shared' | 'per-thread';
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}
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interface ChannelAdapter {
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name: string;
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channelType: string;
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// 生命周期
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setup(config: ChannelSetup): Promise<void>;
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teardown(): Promise<void>;
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isConnected(): boolean;
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// 出站投递
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deliver(platformId: string, threadId: string | null, message: OutboundMessage): Promise<void>;
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// 可选
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setTyping?(platformId: string, threadId: string | null): Promise<void>;
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syncConversations?(): Promise<ConversationInfo[]>;
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updateConversations?(conversations: ConversationConfig[]): void;
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}
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// 从 adapter 到 host 的入站消息
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interface InboundMessage {
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id: string;
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kind: 'chat' | 'chat-sdk';
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content: unknown; // JSON blob — NanoClaw chat 格式或 Chat SDK SerializedMessage
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timestamp: string;
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}
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// 从 host 到 adapter 的出站消息
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interface OutboundMessage {
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kind: 'chat' | 'chat-sdk';
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content: unknown; // JSON blob — 与 kind 对应
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}
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```
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### Chat SDK Bridge（Chat SDK 桥接）
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封装一个 Chat SDK adapter + Chat 实例以符合 NanoClaw `ChannelAdapter` 接口。主干代码仅内置桥接层和 channel registry（通道注册表） — 平台特定的 Chat SDK adapter（Discord、Slack、Telegram 等）和原生 adapter（WhatsApp/Baileys）由 `/add-<channel>` 技能从 `channels` 分支安装。
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```typescript
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function createChatSdkBridge(
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adapter: Adapter,
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chatConfig: { concurrency?: ConcurrencyStrategy }
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): ChannelAdapter {
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let chat: Chat;
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let hostCallbacks: ChannelSetup;
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return {
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name: adapter.name,
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channelType: adapter.name,
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async setup(config) {
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hostCallbacks = config;
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chat = new Chat({
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adapters: { [adapter.name]: adapter },
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state: new SqliteStateAdapter(),
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concurrency: chatConfig.concurrency ?? 'concurrent',
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});
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// 订阅已注册的对话
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for (const conv of config.conversations) {
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if (conv.agentGroupId) {
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await chat.state.subscribe(conv.platformId);
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}
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}
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// 已订阅的线程 → 转发所有消息
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chat.onSubscribedMessage(async (thread, message) => {
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const channelId = adapter.channelIdFromThreadId(thread.id);
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config.onInbound(channelId, thread.id, {
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id: message.id,
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kind: 'chat-sdk',
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content: message.toJSON(),
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timestamp: message.metadata.dateSent.toISOString(),
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});
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});
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// 未订阅线程中的 @mention → 发现
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chat.onNewMention(async (thread, message) => {
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const channelId = adapter.channelIdFromThreadId(thread.id);
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config.onInbound(channelId, thread.id, {
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id: message.id,
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kind: 'chat-sdk',
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content: message.toJSON(),
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timestamp: message.metadata.dateSent.toISOString(),
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});
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// 订阅以便后续接收该线程的消息
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await thread.subscribe();
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});
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// 私信 → 始终转发
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chat.onDirectMessage(async (thread, message) => {
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config.onInbound(thread.id, null, {
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id: message.id,
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kind: 'chat-sdk',
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content: message.toJSON(),
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timestamp: message.metadata.dateSent.toISOString(),
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});
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await thread.subscribe();
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});
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await chat.initialize();
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},
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async deliver(platformId, threadId, message) {
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const tid = threadId ?? platformId;
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if (message.kind === 'chat-sdk') {
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const content = message.content as Record<string, unknown>;
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if (content.operation === 'edit') {
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await adapter.editMessage(tid, content.messageId as string,
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{ markdown: content.text as string });
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} else if (content.operation === 'reaction') {
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await adapter.addReaction(tid, content.messageId as string,
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content.emoji as string);
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} else {
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await adapter.postMessage(tid, content as AdapterPostableMessage);
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}
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} else {
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const content = message.content as { text: string };
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await adapter.postMessage(tid, { markdown: content.text });
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}
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},
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async setTyping(platformId, threadId) {
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await adapter.startTyping(threadId ?? platformId);
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},
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async teardown() {
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await chat.shutdown();
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},
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isConnected() { return true; },
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updateConversations(conversations) {
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// 订阅新对话，可取消订阅已移除的对话
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for (const conv of conversations) {
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if (conv.agentGroupId) {
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chat.state.subscribe(conv.platformId);
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}
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}
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},
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};
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}
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```
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### 原生 NanoClaw Channel（不使用 Chat SDK）
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原生 channel 直接实现 `ChannelAdapter` 接口。WhatsApp/Baileys adapter 是典型的例子 — 它通过 `/add-whatsapp` 技能提供，不在主干代码中：
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```typescript
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function createWhatsAppChannel(): ChannelAdapter {
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let socket: WASocket;
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let config: ChannelSetup;
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return {
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name: 'whatsapp',
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channelType: 'whatsapp',
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async setup(setup) {
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config = setup;
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socket = await connectBaileys();
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socket.on('messages.upsert', (event) => {
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for (const msg of event.messages) {
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const jid = msg.key.remoteJid;
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const conv = config.conversations.find(c => c.platformId === jid);
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// 触发器检查（原生 channel — adapter 执行，非 host）
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if (conv?.requiresTrigger && conv.triggerPattern) {
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if (!new RegExp(conv.triggerPattern).test(msg.message?.conversation || '')) {
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return; // 不匹配触发器
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}
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}
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config.onInbound(jid, null, {
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id: msg.key.id,
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kind: 'chat',
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content: {
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sender: msg.pushName || msg.key.participant,
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senderId: msg.key.participant || msg.key.remoteJid,
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text: msg.message?.conversation || '',
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attachments: [],
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isFromMe: msg.key.fromMe,
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},
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timestamp: new Date(msg.messageTimestamp * 1000).toISOString(),
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});
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}
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});
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},
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async deliver(platformId, threadId, message) {
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const content = message.content as { text: string };
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await socket.sendMessage(platformId, { text: content.text });
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},
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async setTyping(platformId) {
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await socket.sendPresenceUpdate('composing', platformId);
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},
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async teardown() {
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await socket.logout();
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},
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isConnected() { return !!socket; },
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};
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}
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```
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## Session DB（会话数据库）Schema 详解
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### messages_in 内容示例
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**`chat`** — 简洁的 NanoClaw 格式：
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```json
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{
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"sender": "John",
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"senderId": "user123",
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"text": "Check this PR",
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"attachments": [{ "type": "image", "url": "https://signed-url..." }],
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"isFromMe": false
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}
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```
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**`chat-sdk`** — 完整的 Chat SDK `SerializedMessage`：
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```json
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{
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"_type": "chat:Message",
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"id": "msg-1",
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"threadId": "slack:C123:1234.5678",
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"text": "Check this PR",
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"formatted": { "type": "root", "children": [...] },
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"author": { "userId": "U123", "userName": "john", "fullName": "John", "isBot": false, "isMe": false },
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"metadata": { "dateSent": "2024-01-01T00:00:00Z", "edited": false },
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"attachments": [{ "type": "image", "url": "https://...", "name": "screenshot.png" }],
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"isMention": true,
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"links": []
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}
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```
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**问题响应**（用户点击交互式卡片后）：
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```json
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{
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"sender": "John",
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"senderId": "user123",
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"text": "Yes",
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"questionId": "q-123",
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"selectedOption": "Yes",
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"isFromMe": false
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}
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```
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### messages_out 内容示例
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**普通聊天消息：**
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```json
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{ "text": "LGTM, merging now" }
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```
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**Chat SDK markdown：**
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```json
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{ "markdown": "## Review Summary\n**Status**: Approved\n\nNo issues found." }
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```
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**卡片：**
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```json
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{
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"card": {
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"type": "card",
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"title": "Deployment Approval",
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"children": [
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{ "type": "text", "content": "Deploy 2.1.0 to production?" },
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{ "type": "actions", "children": [
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{ "type": "button", "id": "approve", "label": "Approve", "style": "primary" },
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{ "type": "button", "id": "reject", "label": "Reject", "style": "danger" }
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]}
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]
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},
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"fallbackText": "Deployment Approval: Deploy 2.1.0 to production? [Approve] [Reject]"
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}
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```
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**询问用户问题：**
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```json
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{
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"operation": "ask_question",
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"questionId": "q-123",
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"title": "Failing Test",
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"question": "How should we handle the failing test?",
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"options": [
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"Skip it",
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{ "label": "Fix and retry", "selectedLabel": "✅ Fixing", "value": "fix" },
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{ "label": "Abort deployment", "selectedLabel": "❌ Aborted", "value": "abort" }
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]
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}
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```
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**编辑消息：**
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```json
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{ "operation": "edit", "messageId": "3", "text": "Updated: LGTM with minor comments on line 42" }
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```
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**添加反应：**
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```json
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{ "operation": "reaction", "messageId": "5", "emoji": "thumbs_up" }
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```
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**系统操作：**
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```json
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{ "action": "reset_session", "payload": { "session_id": "sess-123", "reason": "Skills updated" } }
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```
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## Host Delivery（主机投递）逻辑
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host 读取 `messages_out` 并根据 `kind` 和 `operation` 进行分发：
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```typescript
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async function deliverMessage(row: MessagesOutRow, adapter: ChannelAdapter) {
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const content = JSON.parse(row.content);
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// 系统操作 — host 内部处理
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if (row.kind === 'system') {
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await handleSystemAction(content);
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return;
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}
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// Agent 间通信 — 写入目标 session DB
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if (isAgentDestination(row)) {
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await writeToAgentSession(row);
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return;
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}
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// Channel 投递 — 委托给 adapter
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await adapter.deliver(row.platform_id, row.thread_id, {
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kind: row.kind,
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content,
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});
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}
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```
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adapter 的 `deliver()` 方法在内部处理操作分发（post vs edit vs reaction）。
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