diff --git a/packages/spacecat-shared-dynamo/src/utils/guards.js b/packages/spacecat-shared-dynamo/src/utils/guards.js
index 90668b1d..62b39272 100644
--- a/packages/spacecat-shared-dynamo/src/utils/guards.js
+++ b/packages/spacecat-shared-dynamo/src/utils/guards.js
@@ -12,18 +12,36 @@
 
 import { hasText, isObject } from '@adobe/spacecat-shared-utils';
 
+/**
+ * Validates that the provided table name is a non-empty string.
+ *
+ * @param {string} tableName - The name of the table to validate.
+ * @throws {Error} If the table name is empty or not a string.
+ */
 const guardTableName = (tableName) => {
   if (!hasText(tableName)) {
     throw new Error('Table name is required.');
   }
 };
 
+/**
+ * Validates that the provided key is an object and contains a partitionKey.
+ *
+ * @param {object} key - The key object to validate.
+ * @throws {Error} If the key is not an object or does not contain a partitionKey.
+ */
 const guardKey = (key) => {
   if (!isObject(key) || !key.partitionKey) {
     throw new Error('Key must be an object with a partitionKey.');
   }
 };
 
+/**
+ * Validates that the provided parameters object contains the required query parameters.
+ *
+ * @param {object} params - The parameters object to validate.
+ * @throws {Error} If the parameters object is not an object or is missing required properties.
+ */
 const guardQueryParameters = (params) => {
   if (!isObject(params)) {
     throw new Error('Query parameters must be an object.');