diff --git a/.gitea/checker/api-templates/README.md b/.gitea/checker/api-templates/README.md
index 0dd94e8..5b32f7e 100644
--- a/.gitea/checker/api-templates/README.md
+++ b/.gitea/checker/api-templates/README.md
@@ -51,7 +51,7 @@ WeComNotifier             ────────►   ApiChangeNotifier（新
 **方法指纹建议**（用于跨 commit 匹配同一接口）：
 
 ```
-controller源文件 + 方法名 + 参数槽位（如 0:query,1:body；不含类型与绑定名）
+controller源文件 + 方法名（不含参数信息；增删参/改类型等由 ParameterDiffEngine 检测）
 ```
 
 仅 URI 匹配在「改路径」场景会失效，需指纹辅助。
diff --git a/.gitea/checker/api-templates/api-path-change.md b/.gitea/checker/api-templates/api-path-change.md
index 5b56af7..63f48db 100644
--- a/.gitea/checker/api-templates/api-path-change.md
+++ b/.gitea/checker/api-templates/api-path-change.md
@@ -77,7 +77,7 @@
 
 1. 解析旧/新 commit 下同一 Controller 源码 AST
 2. 提取每个方法的 `httpMethod` + `uri`（已有 `EndpointParser` 逻辑）
-3. 用**方法指纹**（类文件 + 方法名 + 参数槽位，如 `0:query,1:query`；不含类型与绑定名）匹配新旧接口
+3. 用**方法指纹**（类文件 + 方法名，如 `ApplyClockInController.java#getApply`）匹配新旧接口；参数增删改由 ParameterDiffEngine 检测
 4. 指纹相同且 URI 不同 → **修改路径**
 5. 仅旧有新无 → **删除**；仅新有旧无 → **新增**
 
diff --git a/.gitea/checker/src/main/java/com/codechecker/api/model/EndpointSnapshot.java b/.gitea/checker/src/main/java/com/codechecker/api/model/EndpointSnapshot.java
index cff7b38..4087283 100644
--- a/.gitea/checker/src/main/java/com/codechecker/api/model/EndpointSnapshot.java
+++ b/.gitea/checker/src/main/java/com/codechecker/api/model/EndpointSnapshot.java
@@ -29,16 +29,9 @@ public class EndpointSnapshot {
         this.parameters = parameters == null ? List.of() : new ArrayList<>(parameters);
     }
 
-    public static String buildFingerprint(String sourceFile, String methodName,
-                                          List<MethodParameterSnapshot> parameters) {
-        StringBuilder sig = new StringBuilder();
-        for (int i = 0; i < parameters.size(); i++) {
-            if (i > 0) {
-                sig.append(',');
-            }
-            sig.append(parameters.get(i).fingerprintSlotKey(i));
-        }
-        return sourceFile + "#" + methodName + "#" + sig;
+    /** 跨 commit 配对同一 Java 方法；不含参数信息，参数 diff 由 ParameterDiffEngine 负责 */
+    public static String buildFingerprint(String sourceFile, String methodName) {
+        return sourceFile + "#" + methodName;
     }
 
     public String getFingerprint() {
diff --git a/.gitea/checker/src/main/java/com/codechecker/api/model/MethodParameterSnapshot.java b/.gitea/checker/src/main/java/com/codechecker/api/model/MethodParameterSnapshot.java
index 2c92334..718d1a5 100644
--- a/.gitea/checker/src/main/java/com/codechecker/api/model/MethodParameterSnapshot.java
+++ b/.gitea/checker/src/main/java/com/codechecker/api/model/MethodParameterSnapshot.java
@@ -53,11 +53,6 @@ public class MethodParameterSnapshot {
         return dtoClassName;
     }
 
-    /** 接口指纹槽位：序号 + 参数来源，不含类型与绑定名，避免类型/绑定变更导致误配对 */
-    public String fingerprintSlotKey(int index) {
-        return index + ":" + source;
-    }
-
     /** path/query 按绑定名匹配，避免仅 Java 形参重命名误报 */
     public String identityKey() {
         if ("path".equals(source) || "query".equals(source)) {
diff --git a/.gitea/checker/src/main/java/com/codechecker/api/notify/ApiChangeNotifier.java b/.gitea/checker/src/main/java/com/codechecker/api/notify/ApiChangeNotifier.java
index 4e32d81..c238605 100644
--- a/.gitea/checker/src/main/java/com/codechecker/api/notify/ApiChangeNotifier.java
+++ b/.gitea/checker/src/main/java/com/codechecker/api/notify/ApiChangeNotifier.java
@@ -127,7 +127,7 @@ public class ApiChangeNotifier {
         sb.append("# 【API参数变更通知】").append("\n\n");
         sb.append(MarkdownStyles.quoteKvBold("修改人", MarkdownStyles.colorComment(modifier))).append("\n");
         sb.append(MarkdownStyles.quoteKvBold("时间", MarkdownStyles.colorComment(modifyTime))).append("\n");
-        sb.append(MarkdownStyles.quoteKvBold("变更类型", MarkdownStyles.colorWarning("修改参数"))).append("\n");
+        //sb.append(MarkdownStyles.quoteKvBold("变更类型", MarkdownStyles.colorWarning("修改参数"))).append("\n");
         sb.append(MarkdownStyles.quoteKvBold("URI",
                 MarkdownStyles.colorInfo(report.getHttpMethod()) + " "
                         + MarkdownStyles.inlineCode(report.getUri()))).append("\n");
diff --git a/.gitea/checker/src/main/java/com/codechecker/api/parser/EndpointSnapshotParser.java b/.gitea/checker/src/main/java/com/codechecker/api/parser/EndpointSnapshotParser.java
index 7303000..7a92204 100644
--- a/.gitea/checker/src/main/java/com/codechecker/api/parser/EndpointSnapshotParser.java
+++ b/.gitea/checker/src/main/java/com/codechecker/api/parser/EndpointSnapshotParser.java
@@ -93,7 +93,7 @@ public class EndpointSnapshotParser {
             List<String> httpMethods = extractHttpMethods(annotation, annName);
             List<MethodParameterSnapshot> params = extractParameters(method);
             String methodDescription = MethodDescriptionExtractor.extract(method);
-            String fingerprint = EndpointSnapshot.buildFingerprint(sourceFile, method.getNameAsString(), params);
+            String fingerprint = EndpointSnapshot.buildFingerprint(sourceFile, method.getNameAsString());
             for (String httpMethod : httpMethods) {
                 for (String subPath : subPaths) {
                     String uri = joinPaths(basePath, subPath);