Macros, generic skill implementations.

code/game/objects/items/grenades/chem_grenade.dm

@@ -97,8 +97,7 @@
 		to_chat(user, "<span class='notice'>You add [A] to the [initial(name)] assembly.</span>")
 
 	else if(stage == EMPTY && istype(I, /obj/item/stack/cable_coil))
-		var/obj/item/stack/cable_coil/C = I
-		if (C.use(1))
+		if (I.use_tool(src, user, 0, 1, max_level = JOB_SKILL_BASIC))
 			det_time = 50 // In case the cable_coil was removed and readded.
 			stage_change(WIRED)
 			to_chat(user, "<span class='notice'>You rig the [initial(name)] assembly.</span>")

code/game/objects/items/stacks/sheets/glass.dm

@@ -69,7 +69,7 @@ GLOBAL_LIST_INIT(glass_recipes, list ( \
 		if (get_amount() < 1 || CC.get_amount() < 5)
 			to_chat(user, "<span class='warning>You need five lengths of coil and one sheet of glass to make wired glass!</span>")
 			return
-		CC.use(5)
+		CC.use_tool(src, user, 0, 5, max_level = JOB_SKILL_BASIC)
 		use(1)
 		to_chat(user, "<span class='notice'>You attach wire to the [name].</span>")
 		var/obj/item/stack/light_w/new_tile = new(user.loc)