Separate WeChat chat, page refine, and task flows with explicit routing.

Add channel prefixes, pin edit targets in Cursor prompts, and force fresh sessions for page refine URLs so DeepSeek/Goose chat history does not pollute page tasks.

Co-authored-by: Cursor <cursoragent@cursor.com>

wechat/intent/channel-prefix.mjs

@@ -0,0 +1,49 @@
+/** Explicit WeChat channel prefixes so users can separate chat, page, and scheduled tasks. */
+
+export const WECHAT_CHANNEL_PREFIX = Object.freeze({
+  CHAT: 'chat',
+  PAGE: 'page',
+  SCHEDULED_TASK: 'scheduled_task',
+});
+
+const PREFIX_ENTRIES = Object.freeze([
+  {
+    channel: WECHAT_CHANNEL_PREFIX.CHAT,
+    pattern: /^【?\s*聊天\s*】?[：:\s]*/iu,
+  },
+  {
+    channel: WECHAT_CHANNEL_PREFIX.PAGE,
+    pattern: /^【?\s*(?:改页|做页|页面)\s*】?[：:\s]*/iu,
+  },
+  {
+    channel: WECHAT_CHANNEL_PREFIX.SCHEDULED_TASK,
+    pattern: /^【?\s*定时任务\s*】?[：:\s]*/iu,
+  },
+]);
+
+/**
+ * @returns {{ channel: string|null, body: string, hadPrefix: boolean }}
+ */
+export function parseWechatChannelPrefix(text) {
+  const normalized = String(text ?? '').trim();
+  if (!normalized) {
+    return { channel: null, body: '', hadPrefix: false };
+  }
+  for (const entry of PREFIX_ENTRIES) {
+    if (!entry.pattern.test(normalized)) continue;
+    return {
+      channel: entry.channel,
+      body: normalized.replace(entry.pattern, '').trim(),
+      hadPrefix: true,
+    };
+  }
+  return { channel: null, body: normalized, hadPrefix: false };
+}
+
+export function stripWechatChannelPrefix(text) {
+  return parseWechatChannelPrefix(text).body;
+}
+
+export function hasWechatPageChannelPrefix(text) {
+  return parseWechatChannelPrefix(text).channel === WECHAT_CHANNEL_PREFIX.PAGE;
+}

wechat/intent/channel-prefix.test.mjs

@@ -0,0 +1,29 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  parseWechatChannelPrefix,
+  stripWechatChannelPrefix,
+  WECHAT_CHANNEL_PREFIX,
+} from './channel-prefix.mjs';
+
+test('parseWechatChannelPrefix strips chat prefix', () => {
+  const parsed = parseWechatChannelPrefix('【聊天】上海明天天气怎么样');
+  assert.equal(parsed.channel, WECHAT_CHANNEL_PREFIX.CHAT);
+  assert.equal(parsed.body, '上海明天天气怎么样');
+});
+
+test('parseWechatChannelPrefix strips page refine prefix', () => {
+  const parsed = parseWechatChannelPrefix('【改页】public/demo.html 补充时间节点');
+  assert.equal(parsed.channel, WECHAT_CHANNEL_PREFIX.PAGE);
+  assert.match(parsed.body, /public\/demo\.html/);
+});
+
+test('parseWechatChannelPrefix strips scheduled task prefix', () => {
+  const parsed = parseWechatChannelPrefix('【定时任务】列出我进行中的任务');
+  assert.equal(parsed.channel, WECHAT_CHANNEL_PREFIX.SCHEDULED_TASK);
+  assert.equal(parsed.body, '列出我进行中的任务');
+});
+
+test('stripWechatChannelPrefix leaves unprefixed text unchanged', () => {
+  assert.equal(stripWechatChannelPrefix('帮我做嵊泗攻略'), '帮我做嵊泗攻略');
+});

wechat/intent/classifier.mjs

@@ -1,3 +1,4 @@
+import { parseWechatChannelPrefix, WECHAT_CHANNEL_PREFIX } from './channel-prefix.mjs';
 import {
   CONNECTIVITY_TEST_PATTERN,
   GREETING_PATTERN,
@@ -43,27 +44,50 @@ import { WECHAT_SESSION_ACTION } from './session-action.mjs';
  * @param {{ msgType?: string, agentText?: string, displayText?: string }} intent
  * @returns {WechatIntent}
  */
+function withChannelMeta(result, channelPrefix) {
+  if (!channelPrefix) return result;
+  return { ...result, channelPrefix };
+}
+
 export function classifyWechatIntent(intent) {
   const msgType = String(intent?.msgType ?? 'text').toLowerCase();
-  const text = String(intent?.agentText ?? intent?.displayText ?? '').trim();
+  const rawText = String(intent?.agentText ?? intent?.displayText ?? '').trim();
+  const { channel: channelPrefix, body: text } = parseWechatChannelPrefix(rawText);
 
   if (msgType === 'text' || msgType === 'voice') {
     if (isTopicResetText(text)) {
-      return { kind: 'session.reset', sessionAction: WECHAT_SESSION_ACTION.RESET };
+      return withChannelMeta(
+        { kind: 'session.reset', sessionAction: WECHAT_SESSION_ACTION.RESET },
+        channelPrefix,
+      );
+    }
+    if (STATUS_PROBE_PATTERN.test(text)) {
+      return withChannelMeta({ kind: 'status.probe' }, channelPrefix);
+    }
+    if (GREETING_PATTERN.test(text.replace(/[!！。.\s]+$/g, ''))) {
+      return withChannelMeta({ kind: 'greeting' }, channelPrefix);
     }
-    if (STATUS_PROBE_PATTERN.test(text)) return { kind: 'status.probe' };
-    if (GREETING_PATTERN.test(text.replace(/[!！。.\s]+$/g, ''))) return { kind: 'greeting' };
     if (CONNECTIVITY_TEST_PATTERN.test(text.replace(/[!！。.\s]+$/g, ''))) {
-      return { kind: 'connectivity.test' };
+      return withChannelMeta({ kind: 'connectivity.test' }, channelPrefix);
     }
-    if (isPageGenerateText(text)) {
-      return {
+    if (channelPrefix === WECHAT_CHANNEL_PREFIX.CHAT) {
+      return withChannelMeta({ kind: 'chat.general', text }, channelPrefix);
+    }
+    if (channelPrefix === WECHAT_CHANNEL_PREFIX.PAGE) {
+      return withChannelMeta({
         kind: 'page.generate',
         topic: text,
         wantsDocx: wantsDocxDownload(text),
-      };
+      }, channelPrefix);
     }
-    return { kind: 'chat.general', text };
+    if (isPageGenerateText(text)) {
+      return withChannelMeta({
+        kind: 'page.generate',
+        topic: text,
+        wantsDocx: wantsDocxDownload(text),
+      }, channelPrefix);
+    }
+    return withChannelMeta({ kind: 'chat.general', text }, channelPrefix);
   }
 
   if (msgType === 'event') {