why does this only work with 1 tool? [unanswered]

script.Parent.ChildAdded:connect(function(g)
	wait(0.5)
	local newtool = g
	local oldtools = game.Lighting:GetChildren()
	for i,v in pairs(oldtools)do
		local oldname = v.Name
		if newtool.Name ~= oldname then
			newtool:Destroy()
		end
	end
end)

so basically i want this script to delete any tool that is added in players backpack if it does not have the same name as 1 of the tools in lighting. but this script only deletes the tool if there is 1 tool in lighting if there are 2 or more tools in lighting this script will not destroy the tool that is added to the backpack. please help

Your script should work like this:

script.Parent.ChildAdded:connect(function(g)
	if not game:service'Lighting':FindFirstChild(g.Name,true) then
		g:Destroy() 
		--put code logging the deletion here
	end;
end)

Ideally, you should store all tools in ServerStorage to prevent them being exploited into a Player's backpack, however LocalScripts cannot access this Service or any of its Descendant Instances.