diff --git a/.gitea/workflows/pr.yml b/.gitea/workflows/pr.yml
index 76e5218..c3243f2 100644
--- a/.gitea/workflows/pr.yml
+++ b/.gitea/workflows/pr.yml
@@ -55,5 +55,8 @@ jobs:
       - name: Install luacheck
         run: luarocks install luacheck
 
-      - name: Run Lua Check
-        run: luacheck ./src --config .luacheckrc
\ No newline at end of file
+      # - name: Run Lua Check
+      #   run: luacheck ./src --config .luacheckrc
+
+      - name: Check Types
+        uses: mrcjkb/lua-typecheck-action@08d5ead5db7b1c8457aa7a0e566240b680b34588
\ No newline at end of file
diff --git a/src/classes/util/Util.lua b/src/classes/util/Util.lua
index 09c8465..697e7b6 100644
--- a/src/classes/util/Util.lua
+++ b/src/classes/util/Util.lua
@@ -237,8 +237,13 @@ do -- INIT UTIL
 
         return ((vec1Norm.x * vec2Norm.x) + (vec1Norm.y * vec2Norm.y) + (vec1Norm.z * vec2Norm.z))
     end
-
+    
+    ---@param polygon Array<Vec2> of pairs { x, y }
+    ---@param x number X location
+    ---@param y number Y location
+    ---@return boolean
     local function isInComplexPolygon(polygon, x, y)
+        ---@param poly Array<Vec2> of pairs { x, y }
         local function getEdges(poly)
             local result = {}
             for i = 1, #poly do
@@ -399,7 +404,9 @@ do -- INIT UTIL
         if #points == 0 then return {} end
 
         -- Simple clustering: group points that are within minSeparation of each other
+        ---@type Array<Array<Vec2>>
         local clusters = {}
+        ---@type table<integer, boolean>
         local assigned = {}
 
         for i, p in ipairs(points) do