diff --git a/application/Espo/Core/Select/Order/Params.php b/application/Espo/Core/Select/Order/Params.php
index 2004fc5935..19968fec9a 100644
--- a/application/Espo/Core/Select/Order/Params.php
+++ b/application/Espo/Core/Select/Order/Params.php
@@ -34,6 +34,8 @@ use Espo\Core\Select\SearchParams;
 use InvalidArgumentException;
 
 /**
+ * Order parameters.
+ *
  * @immutable
  */
 class Params
@@ -85,11 +87,17 @@ class Params
         return $this->forbidComplexExpressions;
     }*/
 
+    /**
+     * Force default order.
+     */
     public function forceDefault(): bool
     {
         return $this->forceDefault;
     }
 
+    /**
+     * An order-By field.
+     */
     public function getOrderBy(): ?string
     {
         /** @var ?string */
@@ -97,6 +105,8 @@ class Params
     }
 
     /**
+     * An order direction.
+     *
      * @return SearchParams::ORDER_ASC|SearchParams::ORDER_DESC|null
      */
     public function getOrder(): ?string
diff --git a/application/Espo/Core/Select/Where/Item.php b/application/Espo/Core/Select/Where/Item.php
index 2aee0ee7d6..e8cc2b66e0 100644
--- a/application/Espo/Core/Select/Where/Item.php
+++ b/application/Espo/Core/Select/Where/Item.php
@@ -36,6 +36,8 @@ use InvalidArgumentException;
 use RuntimeException;
 
 /**
+ * A where item.
+ *
  * @immutable
  */
 class Item
diff --git a/application/Espo/Core/Select/Where/ItemBuilder.php b/application/Espo/Core/Select/Where/ItemBuilder.php
index b41e5fb7f4..c97858267d 100644
--- a/application/Espo/Core/Select/Where/ItemBuilder.php
+++ b/application/Espo/Core/Select/Where/ItemBuilder.php
@@ -31,6 +31,9 @@ namespace Espo\Core\Select\Where;
 
 use Espo\Core\Select\Where\Item\Data;
 
+/**
+ * A where-item builder.
+ */
 class ItemBuilder
 {
     private ?string $type = null;
diff --git a/application/Espo/Core/Select/Where/Params.php b/application/Espo/Core/Select/Where/Params.php
index 185fb19bc7..097f96724c 100644
--- a/application/Espo/Core/Select/Where/Params.php
+++ b/application/Espo/Core/Select/Where/Params.php
@@ -32,6 +32,8 @@ namespace Espo\Core\Select\Where;
 use InvalidArgumentException;
 
 /**
+ * Where parameters.
+ *
  * @immutable
  */
 class Params
@@ -43,7 +45,7 @@ class Params
     {}
 
     /**
-     * @param array<string,mixed> $params
+     * @param array<string, mixed> $params
      */
     public static function fromArray(array $params): self
     {
@@ -61,11 +63,17 @@ class Params
         return $object;
     }
 
+    /**
+     * Apply permission check.
+     */
     public function applyPermissionCheck(): bool
     {
         return $this->applyPermissionCheck;
     }
 
+    /**
+     * Forbid complex expressions.
+     */
     public function forbidComplexExpressions(): bool
     {
         return $this->forbidComplexExpressions;