How do I save tools with Filter Enabled?

Firstly, make sure that you place each tool inside a Folder named "Tools", the folder should be placed into ServerStorage

Local Script (should be placed inside every tool)

local Remote = game:GetService("ReplicatedStorage"):WaitForChild("ToolEquip")
local Tool = script.Parent

Tool.Equipped:Connect(function()
	Remote:FireServer(Tool.Name)
end)

Server Script (placed in ServerScriptService)

local DSS = game:GetService("DataStoreService")
local Storage = DSS:GetDataStore("Tools")

local Remote = Instance.new("RemoteEvent")
Remote.Name = "ToolEquip"
Remote.Parent = game:GetService("ReplicatedStorage")

game:GetService("Players").PlayerAdded:Connect(function(Player)
	local folder = Instance.new("Folder")
	folder.Name = "SavedTools"
	folder.Parent = Player
	
	for a, b in pairs(game:GetService("ServerStorage"):WaitForChild("Tools"):GetChildren()) do
		if b:IsA("Tool") then
			local bool = Instance.new("BoolValue")
			bool.Name = b.Name
			bool.Value = false
			bool.Parent = folder
		end
	end
	
	local success, result = pcall(function()
		Storage:GetAsync(Player.UserId)
	end)
	
	if not success then
		warn(result)
	else
		local LoadArray = Storage:GetAsync(Player.UserId)
		if LoadArray ~= nil then
			for c, d in pairs(folder:GetChildren()) do
				local find = game:GetService("ServerStorage"):WaitForChild("Tools"):FindFirstChild(d.Name)
				if find ~= nil then
					d.Value = LoadArray[c]
				end
			end
		end
	end
end)

Remote.OnServerEvent:Connect(function(Player, Tool)
	Player:WaitForChild("SavedTools"):WaitForChild(Tool).Value = true
end)

game:GetService("Players").PlayerRemoving:Connect(function(Player)
	local SaveArray = {}
	for e, f in pairs(Player:WaitForChild("SavedTools"):GetChildren()) do
		local num = #SaveArray + 1
		table.insert(SaveArray, num, f.Value)
	end
	Storage:SetAsync(Player.UserId, SaveArray)
end)

You need to use a Remote Event to communicate between the Server and the Client, for this example, if the player equips a tool, then they will have their value sent to the server to be saved when they leave.

Each tool is given a value when the player enters the game, and then saved back into a table when they leave the game.

We use a pcall to make sure no errors are thrown by the script, preventing its further functionality (since API Services should be disabled, you cannot test this in studio).