diff --git a/Alliance-codeBase/PostMeta/tree/master/code/modules/clothing/masks/snorkel.dm b/Alliance-codeBase/PostMeta/tree/master/code/modules/clothing/masks/snorkel.dm
new file mode 100644
index 000000000000..74296ed15cea
--- /dev/null
+++ b/Alliance-codeBase/PostMeta/tree/master/code/modules/clothing/masks/snorkel.dm
@@ -0,0 +1,9 @@
+/obj/item/clothing/mask/snorkel_mask
+	name = "snorkel mask"
+	desc = "With this mask, you can stay at depth for longer."
+	icon_state = "snorkel_mask"
+	alternate_worn_layer = ABOVE_BODY_FRONT_HEAD_LAYER
+	w_class = WEIGHT_CLASS_TINY
+	flags_inv = HIDEFACE
+	species_exception = list(/datum/species/golem)
+
diff --git a/Alliance-codeBase/PostMeta/tree/master/icons/obj/masks.dmi b/Alliance-codeBase/PostMeta/tree/master/icons/obj/masks.dmi
new file mode 100644
index 000000000000..accacf79e682
Binary files /dev/null and b/Alliance-codeBase/PostMeta/tree/master/icons/obj/masks.dmi differ
diff --git a/code/modules/surgery/organs/internal/liver/_liver.dm b/code/modules/surgery/organs/internal/liver/_liver.dm
old mode 100644
new mode 100755
diff --git a/tools/CreditsTool/__main__.py b/tools/CreditsTool/__main__.py
old mode 100755
new mode 100644
diff --git a/tools/ci/check_grep.sh b/tools/ci/check_grep.sh
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new mode 100644
diff --git a/tools/ci/check_misc.sh b/tools/ci/check_misc.sh
old mode 100755
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