diff --git a/commands.lua b/commands.lua
new file mode 100644
index 0000000..e3da0d5
--- /dev/null
+++ b/commands.lua
@@ -0,0 +1,35 @@
+minetest.register_privilege("monoid_master", "Lets you apply effects to players")
+
+minetest.register_chatcommand("apply_effect",
+	{ params = "<name> <effect> <duration>",
+	  description = "Applies effect to player",
+	  privs = { monoid_master = true },
+	  func = function(p_name, param)
+		  local target, eff, dur =
+			  param:match("^[^ ]+) +([^ ]+) +(.+)$")
+		  if not target then
+			  return false, "Target name required"
+		  end
+
+		  if not eff then
+			  return false, "Effect name required"
+		  end
+
+		  if not dur then
+			  return false, "Duration required"
+		  end
+
+		  local duration = tonumber(dur)
+
+		  if not duration then
+			  return false, "Duration must be a number"
+		  end
+
+		  if duration <= 0 then
+			  return false, "Duration must be positive"
+		  end
+
+		  monoidal_effects.apply_effect(eff, math.ceil(duration), target)
+		  return true
+	  end,
+})