diff --git a/src/api-server.js b/src/api-server.js
index 0061c66..ec90792 100644
--- a/src/api-server.js
+++ b/src/api-server.js
@@ -628,6 +628,16 @@ function createRequestHandler(config) {
             }));
         }
 
+        // Ignore count_tokens requests
+        if (path.includes('/count_tokens')) {
+            console.log(`[Server] Ignoring count_tokens request: ${path}`);
+            res.writeHead(200, { 'Content-Type': 'application/json' });
+            return res.end(JSON.stringify({
+                tokens: 0,
+                message: 'Token counting is not supported'
+            }));
+        }
+
         if (!isAuthorized(req, requestUrl, currentConfig.REQUIRED_API_KEY)) {
             res.writeHead(401, { 'Content-Type': 'application/json' });
             return res.end(JSON.stringify({ error: { message: 'Unauthorized: API key is invalid or missing.' } }));
diff --git a/src/claude/claude-kiro.js b/src/claude/claude-kiro.js
index 719fa5c..7de00c3 100644
--- a/src/claude/claude-kiro.js
+++ b/src/claude/claude-kiro.js
@@ -859,6 +859,13 @@ async initializeAuth(forceRefresh = false) {
 
     async generateContent(model, requestBody) {
         if (!this.isInitialized) await this.initialize();
+        
+        // 检查 token 是否即将过期,如果是则先刷新
+        if (this.isExpiryDateNear()) {
+            console.log('[Kiro] Token is near expiry, refreshing before generateContent request...');
+            await this.initializeAuth(true);
+        }
+        
         const finalModel = MODEL_MAPPING[model] ? model : this.modelName;
         console.log(`[Kiro] Calling generateContent with model: ${finalModel}`);
         const response = await this.callApi('', finalModel, requestBody);
@@ -886,6 +893,13 @@ async initializeAuth(forceRefresh = false) {
     // 重构2: generateContentStream 调用新的普通async函数
     async * generateContentStream(model, requestBody) {
         if (!this.isInitialized) await this.initialize();
+        
+        // 检查 token 是否即将过期,如果是则先刷新
+        if (this.isExpiryDateNear()) {
+            console.log('[Kiro] Token is near expiry, refreshing before generateContentStream request...');
+            await this.initializeAuth(true);
+        }
+        
         const finalModel = MODEL_MAPPING[model] ? model : this.modelName;
         console.log(`[Kiro] Calling generateContentStream with model: ${finalModel}`);