diff --git a/api/openapi.json b/api/openapi.json
index a1aae537..58ebf11d 100644
--- a/api/openapi.json
+++ b/api/openapi.json
@@ -1300,7 +1300,19 @@
               "type": "string"
             },
             "type": "array",
-            "title": "Libraries"
+            "title": "Libraries",
+            "default": []
+          },
+          "file_extension": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "title": "File Extension"
           }
         },
         "type": "object",
@@ -1309,7 +1321,8 @@
           "language",
           "filepath"
         ],
-        "title": "CodeSnippet"
+        "title": "CodeSnippet",
+        "description": "Represents a code snippet with its programming language.\n\nArgs:\n    language: The programming language identifier (e.g., 'python', 'javascript')\n    code: The actual code content"
       },
       "ConfigureAuthMaterial": {
         "properties": {