--- /dev/null
+<?php
+namespace Robo\Task\Base;
+
+use Robo\Task\CommandStack;
+
+/**
+ * Execute commands one by one in stack.
+ * Stack can be stopped on first fail if you call `stopOnFail()`.
+ *
+ * ```php
+ * <?php
+ * $this->taskExecStack()
+ * ->stopOnFail()
+ * ->exec('mkdir site')
+ * ->exec('cd site')
+ * ->run();
+ *
+ * ?>
+ * ```
+ */
+class ExecStack extends CommandStack
+{
+}