diff --git a/src/main/java/com/kexue/skills/service/impl/SkillGenServiceImpl.java b/src/main/java/com/kexue/skills/service/impl/SkillGenServiceImpl.java
index ff1b06c..2dc3b6b 100644
--- a/src/main/java/com/kexue/skills/service/impl/SkillGenServiceImpl.java
+++ b/src/main/java/com/kexue/skills/service/impl/SkillGenServiceImpl.java
@@ -48,6 +48,7 @@ import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Base64;
 import java.util.Date;
 import java.util.Enumeration;
 import java.util.HashMap;
@@ -933,13 +934,24 @@ public class SkillGenServiceImpl implements SkillGenService {
             fileNode.setFormat(getFileFormat(fileName));
             fileNode.setDescription(fileName + " 文件");
             
-            // 读取文件内容
-            try {
-                String content = new String(entry.getValue(), StandardCharsets.UTF_8);
-                fileNode.setContent(content);
-            } catch (Exception e) {
-                log.warn("读取文件内容失败: {}", filePath, e);
+            // 读取文件内容（仅文本文件，图片等二进制文件不读取内容）
+            String fileFormat = getFileFormat(fileName);
+            boolean isBinaryFile = isBinaryFormat(fileFormat);
+            
+            if (!isBinaryFile) {
+                // 文本文件，读取内容
+                try {
+                    String content = new String(entry.getValue(), StandardCharsets.UTF_8);
+                    fileNode.setContent(content);
+                } catch (Exception e) {
+                    log.warn("读取文件内容失败: {}", filePath, e);
+                    fileNode.setContent("");
+                }
+            } else {
+                // 二进制文件（如图片），不读取内容，仅记录文件大小信息
+                int fileSize = entry.getValue().length;
                 fileNode.setContent("");
+                log.debug("二进制文件: {} ({} bytes)", fileName, fileSize);
             }
             
             // 添加到父节点
@@ -1159,6 +1171,21 @@ public class SkillGenServiceImpl implements SkillGenService {
                 // 文件类型，添加content
                 if (node.getContent() != null && !node.getContent().isEmpty()) {
                     String rawContent = node.getContent();
+                    
+                    // 如果是图片格式，Base64字符串需要按行分割（每行80字符）
+                    if ("image".equals(node.getFormat())) {
+                        int lineLength = 80;
+                        StringBuilder base64Lines = new StringBuilder();
+                        for (int i = 0; i < rawContent.length(); i += lineLength) {
+                            if (i > 0) {
+                                base64Lines.append("\n");
+                            }
+                            int end = Math.min(i + lineLength, rawContent.length());
+                            base64Lines.append(rawContent.substring(i, end));
+                        }
+                        rawContent = base64Lines.toString();
+                    }
+                    
                     // 将Tab替换为4个空格（YAML不允许Tab）
                     rawContent = rawContent.replace("\t", "    ");
                     
@@ -1227,10 +1254,44 @@ public class SkillGenServiceImpl implements SkillGenService {
             return "json";
         } else if (lowerName.endsWith(".yaml") || lowerName.endsWith(".yml")) {
             return "yaml";
+        } else if (lowerName.endsWith(".js") || lowerName.endsWith(".ts")) {
+            return "javascript";
+        } else if (lowerName.endsWith(".html")) {
+            return "html";
+        } else if (lowerName.endsWith(".css")) {
+            return "css";
+        } else if (lowerName.endsWith(".xml")) {
+            return "xml";
+        } else if (lowerName.endsWith(".csv")) {
+            return "csv";
+        } else if (lowerName.endsWith(".png") || lowerName.endsWith(".jpg") || lowerName.endsWith(".jpeg") ||
+                 lowerName.endsWith(".gif") || lowerName.endsWith(".bmp") || lowerName.endsWith(".webp") ||
+                 lowerName.endsWith(".svg") || lowerName.endsWith(".ico")) {
+            return "image";
+        } else if (lowerName.endsWith(".pdf")) {
+            return "pdf";
+        } else if (lowerName.endsWith(".zip") || lowerName.endsWith(".rar") || lowerName.endsWith(".7z")) {
+            return "archive";
+        } else if (lowerName.endsWith(".mp4") || lowerName.endsWith(".avi") || lowerName.endsWith(".mov")) {
+            return "video";
+        } else if (lowerName.endsWith(".mp3") || lowerName.endsWith(".wav") || lowerName.endsWith(".ogg")) {
+            return "audio";
         }
         return "unknown";
     }
 
+    /**
+     * 判断是否为二进制文件格式（不需要读取文本内容）
+     * 注意：image 类型不在此列，因为图片需要转Base64
+     */
+    private boolean isBinaryFormat(String format) {
+        if (format == null) {
+            return false;
+        }
+        return "pdf".equals(format) || "archive".equals(format) || 
+               "video".equals(format) || "audio".equals(format) || "unknown".equals(format);
+    }
+
     /**
      * 设置技能图标
      */