diff --git a/src/ErrorHandlers/ThrowErrorException.php b/src/ErrorHandlers/ThrowErrorException.php
index bc2dd62..f580b6b 100644
--- a/src/ErrorHandlers/ThrowErrorException.php
+++ b/src/ErrorHandlers/ThrowErrorException.php
@@ -26,7 +26,7 @@ namespace OCC\Basics\ErrorHandlers;
 use ErrorException;
 
 /**
- * Throw internal errors as exceptions.
+ * Throws internal errors as exceptions.
  *
  * If registered as error handler, this converts an internal PHP error into an
  * `ErrorException`. It respects the `error_reporting` directive.
@@ -48,7 +48,7 @@ class ThrowErrorException
      *
      * @return bool Always returns FALSE when not throwing an exception
      *
-     * @throws ErrorException
+     * @throws ErrorException if `error_reporting` is set to report the error
      */
     public function __invoke(
         int $errno = E_USER_ERROR,
diff --git a/src/ErrorHandlers/TriggerExceptionError.php b/src/ErrorHandlers/TriggerExceptionError.php
index 1b2a64f..98d0f02 100644
--- a/src/ErrorHandlers/TriggerExceptionError.php
+++ b/src/ErrorHandlers/TriggerExceptionError.php
@@ -26,7 +26,7 @@ namespace OCC\Basics\ErrorHandlers;
 use Throwable;
 
 /**
- * Trigger errors for uncaught exceptions.
+ * Triggers errors for uncaught exceptions.
  *
  * If registered as exception handler, this catches an uncaught exception and
  * converts it into an internal PHP error of severity `E_USER_ERROR`.
diff --git a/src/InterfaceTraits/CountableTrait.php b/src/InterfaceTraits/CountableTrait.php
index d82eef9..3c231cc 100644
--- a/src/InterfaceTraits/CountableTrait.php
+++ b/src/InterfaceTraits/CountableTrait.php
@@ -36,7 +36,7 @@ use Countable;
  * @api
  *
  * @template TValue of mixed
- * @implements Countable
+ * @implements Countable<TValue>
  * @phpstan-require-implements Countable
  */
 trait CountableTrait