fix(rust-guard): use correct JSON pointer key for search_repositories response

guards/github-guard/rust-guard/src/labels/mod.rs

@@ -3710,4 +3710,73 @@ mod tests {
             integrity
         );
     }
+
+    /// search_repositories with `repositories` key (GraphQL-style) must use
+    /// `/repositories/{i}` paths, not `/items/{i}`.
+    #[test]
+    fn test_search_repositories_repositories_key_uses_correct_paths() {
+        let ctx = default_ctx();
+        let tool_args = json!({});
+        let response = json!({
+            "totalCount": 2,
+            "repositories": [
+                {
+                    "full_name": "owner/public-repo",
+                    "private": false
+                },
+                {
+                    "full_name": "owner/private-repo",
+                    "private": true
+                }
+            ]
+        });
+
+        let result = label_response_paths("search_repositories", &tool_args, &response, &ctx)
+            .expect("search_repositories with repositories key should produce path labels");
+
+        assert_eq!(result.labeled_paths.len(), 2, "both items must be labeled");
+        assert_eq!(
+            result.items_path,
+            Some("/repositories".to_string()),
+            "items_path must reflect the actual key used"
+        );
+        assert_eq!(
+            result.labeled_paths[0].path, "/repositories/0",
+            "first item path must use /repositories/ prefix"
+        );
+        assert_eq!(
+            result.labeled_paths[1].path, "/repositories/1",
+            "second item path must use /repositories/ prefix"
+        );
+    }
+
+    /// search_repositories with `items` key (REST format) must use `/items/{i}` paths.
+    #[test]
+    fn test_search_repositories_items_key_uses_correct_paths() {
+        let ctx = default_ctx();
+        let tool_args = json!({});
+        let response = json!({
+            "total_count": 1,
+            "items": [
+                {
+                    "full_name": "owner/public-repo",
+                    "private": false
+                }
+            ]
+        });
+
+        let result = label_response_paths("search_repositories", &tool_args, &response, &ctx)
+            .expect("search_repositories with items key should produce path labels");
+
+        assert_eq!(result.labeled_paths.len(), 1);
+        assert_eq!(
+            result.items_path,
+            Some("/items".to_string()),
+            "items_path must be /items for REST format"
+        );
+        assert_eq!(
+            result.labeled_paths[0].path, "/items/0",
+            "item path must use /items/ prefix for REST format"
+        );
+    }
 }

guards/github-guard/rust-guard/src/labels/response_paths.rs

@@ -48,8 +48,14 @@ pub fn label_response_paths(
     match tool_name {
         // === Repository Search - label by private/public ===
         "search_repositories" => {
-            let items_opt = actual_response.get("items").and_then(|v| v.as_array())
-                .or_else(|| actual_response.get("repositories").and_then(|v| v.as_array()));
+            let (items_opt, items_key) =
+                if let Some(arr) = actual_response.get("items").and_then(|v| v.as_array()) {
+                    (Some(arr), "items")
+                } else if let Some(arr) = actual_response.get("repositories").and_then(|v| v.as_array()) {
+                    (Some(arr), "repositories")
+                } else {
+                    (None, "items")
+                };
             if let Some(items) = items_opt {
                 // Empty search results are server metadata — let lib.rs fallback handle
                 if items.is_empty() && is_search_result_wrapper(&actual_response) {
@@ -79,7 +85,7 @@ pub fn label_response_paths(
                     };
 
                     labeled_paths.push(PathLabelEntry {
-                        path: format!("/items/{}", i),
+                        path: format!("/{}/{}", items_key, i),
                         labels: crate::ResourceLabels {
                             description: format!("repo:{}", full_name),
                             secrecy,
@@ -95,7 +101,7 @@ pub fn label_response_paths(
                         secrecy: vec![],
                         integrity: none_integrity("", ctx),
                     }),
-                    items_path: Some("/items".to_string()),
+                    items_path: Some(format!("/{}", items_key)),
                 });
             }
         }