feat: 遥测优化 — 丰富事件 + 双批次 + model 解析 + beta 常量

backend/internal/pkg/claude/constants.go

@@ -12,6 +12,10 @@ const (
 	BetaTokenCounting            = "token-counting-2024-11-01"
 	BetaContext1M                = "context-1m-2025-08-07"
 	BetaFastMode                 = "fast-mode-2026-02-01"
+	BetaRedactThinking           = "redact-thinking-2026-02-12"
+	BetaContextManagement        = "context-management-2025-06-27"
+	BetaPromptCachingScope       = "prompt-caching-scope-2026-01-05"
+	BetaEffort                   = "effort-2025-11-24"
 )
 
 // DroppedBetas 是转发时需要从 anthropic-beta header 中移除的 beta token 列表。

tools/node-tls-proxy/proxy.js

@@ -204,28 +204,47 @@ function sendDatadogLog(eventName, session, model) {
 }
 
 // 请求前发遥测（模拟 CLI 启动 + 初始化事件）
-function emitPreRequestTelemetry(reqHeaders) {
+function emitPreRequestTelemetry(reqHeaders, body) {
   const accountSeed = reqHeaders['x-forwarded-host'] || 'default';
   const deviceId = generateDeviceId(accountSeed + ':' + (reqHeaders['authorization'] || '').slice(-16));
   const session = getOrCreateSession(deviceId);
   session.requestCount++;
 
-  const model = 'claude-sonnet-4-6';
-  const betas = reqHeaders['anthropic-beta'] || 'claude-code-20250219,interleaved-thinking-2025-05-14';
+  // 从请求体解析真实 model
+  let model = 'claude-sonnet-4-6';
+  try {
+    const parsed = JSON.parse(body.toString());
+    if (parsed.model) model = parsed.model;
+  } catch (_) {}
 
-  // 首次请求：发 tengu_started + tengu_init
+  const betas = reqHeaders['anthropic-beta'] || 'claude-code-20250219,context-1m-2025-08-07,interleaved-thinking-2025-05-14,redact-thinking-2026-02-12,context-management-2025-06-27,prompt-caching-scope-2026-01-05,effort-2025-11-24';
+
+  // 首次请求：发完整启动事件序列（匹配真实 CLI 抓包：4-6 个事件）
   if (session.requestCount === 1) {
-    const events = [
+    // 第一批：MCP 连接事件（真实 CLI 有多个 MCP server）
+    const batch1 = [
       buildEvent('tengu_started', session, model, betas),
       buildEvent('tengu_init', session, model, betas),
+      buildEvent('tengu_mcp_server_connection_failed', session, model, betas),
+      buildEvent('tengu_mcp_server_connection_failed', session, model, betas),
+      buildEvent('tengu_mcp_server_connection_succeeded', session, model, betas),
       buildEvent('tengu_mcp_server_connection_succeeded', session, model, betas),
     ];
-    sendTelemetryEvents(events);
+    sendTelemetryEvents(batch1);
     sendDatadogLog('tengu_started', session, model);
     sendDatadogLog('tengu_init', session, model);
+
+    // 第二批延迟发送（真实 CLI 间隔约 30 秒）
+    setTimeout(() => {
+      const batch2 = [
+        buildEvent('tengu_session_init', session, model, betas),
+        buildEvent('tengu_context_loaded', session, model, betas),
+      ];
+      sendTelemetryEvents(batch2);
+    }, 25000 + Math.floor(Math.random() * 10000));
   }
 
-  // 每次请求：发 request 相关事件
+  // 每次请求：发 request_started
   const events = [
     buildEvent('tengu_api_request_started', session, model, betas),
   ];
@@ -233,19 +252,36 @@ function emitPreRequestTelemetry(reqHeaders) {
 }
 
 // 请求后发遥测
-function emitPostRequestTelemetry(reqHeaders, statusCode) {
+function emitPostRequestTelemetry(reqHeaders, statusCode, body) {
   const accountSeed = reqHeaders['x-forwarded-host'] || 'default';
   const deviceId = generateDeviceId(accountSeed + ':' + (reqHeaders['authorization'] || '').slice(-16));
   const session = getOrCreateSession(deviceId);
 
-  const model = 'claude-sonnet-4-6';
-  const betas = reqHeaders['anthropic-beta'] || 'claude-code-20250219,interleaved-thinking-2025-05-14';
+  let model = 'claude-sonnet-4-6';
+  try {
+    const parsed = JSON.parse(body.toString());
+    if (parsed.model) model = parsed.model;
+  } catch (_) {}
 
+  const betas = reqHeaders['anthropic-beta'] || 'claude-code-20250219,context-1m-2025-08-07,interleaved-thinking-2025-05-14,redact-thinking-2026-02-12,context-management-2025-06-27,prompt-caching-scope-2026-01-05,effort-2025-11-24';
+
+  // 请求完成事件
   const events = [
     buildEvent('tengu_api_request_completed', session, model, betas),
+    buildEvent('tengu_conversation_turn_completed', session, model, betas),
   ];
   sendTelemetryEvents(events);
   sendDatadogLog('tengu_api_request_completed', session, model);
+
+  // 随机发额外事件（模拟用户行为：打开文件、查看搜索等）
+  if (Math.random() < 0.3) {
+    setTimeout(() => {
+      const extra = [
+        buildEvent('tengu_tool_use_completed', session, model, betas),
+      ];
+      sendTelemetryEvents(extra);
+    }, 2000 + Math.floor(Math.random() * 5000));
+  }
 }
 
 // ─── H2 session 管理 ────────────────────────────────────
@@ -332,7 +368,7 @@ function sendViaH1(targetHost, method, path, reqHeaders, body, res, savedHeaders
         proxyRes.pipe(res, { end: true });
         // 请求完成后发遥测
         if (path.includes('/v1/messages') && savedHeaders) {
-          emitPostRequestTelemetry(savedHeaders, proxyRes.statusCode);
+          emitPostRequestTelemetry(savedHeaders, proxyRes.statusCode, body);
         }
         resolve('ok');
       });
@@ -433,7 +469,7 @@ async function proxyRequest(req, res) {
 
   // 请求前发遥测（仅 /v1/messages 请求）
   if (req.url.includes('/v1/messages') && TELEMETRY_ENABLED) {
-    emitPreRequestTelemetry(savedHeaders);
+    emitPreRequestTelemetry(savedHeaders, body);
     // 随机延迟 50-200ms 模拟真实 CLI 行为
     await new Promise(r => setTimeout(r, 50 + Math.floor(Math.random() * 150)));
   }