I need help removing duplicate tools whenever a player respawns?

Hello, I am a very amateur scripter, to the point where I have to take free scripts and modify them to fit the game I am working on, so I may require some additional help, but besides that, I have a bit of a problem with one of my scripts. The script I have for saving tools duplicates the tools in a player's inventory upon death, I will post the code to that script. Allthough an explanation on why this happens and a fix for the script would be helpful, what I mainly need is a script that removes duplicated tools.

local rs = game:GetService("ReplicatedStorage") local ds = game:GetService("DataStoreService") local store = ds:GetDataStore("saveStore") local library = rs:WaitForChild("Library")

--< directory functions

local dir = {}

local function edit(player, list) dir[player.Name] = list end

local function setup(player, list) for i = 1, #list do local tool = library:FindFirstChild(list[i]) if tool then local clone = tool:Clone() clone.Parent = player.Backpack else print(list[i] .. " not found") end end end

--< player events

game.Players.PlayerAdded:connect(function(player)

local ready = false

player.CharacterAdded:connect(function(char)

local bp = player.Backpack
local data = nil

if ready == false then
	ready = true
	
	data = store:GetAsync(player.UserId)
	
	if data then
		setup(player, data)
		edit(player, data)
	end
end	

char.Humanoid.Died:connect(function()
	char.Humanoid:UnequipTools()
	
	local old = player.StarterGear:GetChildren()
	for i = 1, #old do
		old[i]:Destroy()
	end
	
	local new = player.Backpack:GetChildren()
	for i = 1, #new do
		new[i].Parent = player.StarterGear
	end		
end)	

--< adjuster

local count = 0

local function adjust()
	
if char.Humanoid.Health > 0 then

	local list = {}

	local equipped = char:FindFirstChildOfClass("Tool")
	if equipped then
		table.insert(list, equipped.Name)
	end	

	local tools = bp:GetChildren()
	for i = 1, #tools do
		table.insert(list, tools[i].Name)
	end

	if count ~= #list then
		edit(player, list)
		count = #list
	end
end
end

--< child events

bp.ChildAdded:connect(adjust)	
bp.ChildRemoved:connect(adjust)	

char.ChildAdded:connect(function(child)
	if child.ClassName == "Tool" then
		adjust()
	end
end)

char.ChildRemoved:connect(function(child)
	if child.ClassName == "Tool" then
		adjust()
	end
end)	

end)

end)

game.Players.PlayerRemoving:connect(function(player) store:SetAsync(player.UserId, dir[player.Name]) dir[player.Name] = nil end)

--< safety

game:BindToClose(function() wait(5) end)