Added comments, removed potential vulnerability by using Echo function, when could just parrot input to output. Possibly less efficient then just doing that in main, but could have more uses?

basicCommands.lua

@@ -1,25 +1,27 @@
 local basicCommands = {}
 
+--Hello World!
 function basicCommands.helloWorld()
   return("Hello world!")
 end
 
+--Executes Figlet on the host machine.
 function basicCommands.figlet(string)
   local figleted = io.popen("figlet ".. string)
   local result = figleted:read("*all")
   return result
 end
 
+--Executes Cowsay on the host machine.
 function basicCommands.cowsay(string)
   local cowsaid = io.popen("cowsay ".. string)
   local result = cowsaid:read("*all")
   return result
 end
 
+--Takes input and makes it output. GIGO.
 function basicCommands.echo(string)
-  local echoed = io.popen("echo ".. string)
-  local result = echoed:read("*all")
-  return result
+  return string
 end
 
 return basicCommands

bot.lua

@@ -3,12 +3,14 @@ local client = discordia.Client()
 local basicCommands = require("./basicCommands.lua")
 local tools = require("./tools.lua")
 local rng = require("./rng.lua")
-
+--Setup bot here, initializes bot
 client:once("ready", function()
   client:setGame("Astoria's bot, very sad!")
 	print('Logged in as '.. client.user.username)
 end)
+--Everything past this point is commands, initialized here in bot.lua, but its good practise to have the actual functions outside, may be converted to one main call. May be laggier that way, but less cluttered. Perhaps a table?
 
+--Creates a lenny face
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "lenny") == true then
     message.channel:send("( ͡° ͜ʖ ͡°)")
@@ -16,12 +18,14 @@ client:on('messageCreate', function(message)
   end
 end)
 
+--Posts an image of glomping, may add RNG later.
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "glomp") == true then
     message.channel:send("https://tenor.com/view/tv-shows-television-tackle-hug-hug-glomping-gif-14859564")
   end
 end)
 
+--Every time someone says "gif" or some varient of that, often in gifs themselves, it pastes that text. May replace with a copypasta.
 client:on('messageCreate', function(message)
   if message.author.bot then return end
   if tools.messageDectectionAnywhere(message, "gif") == true then
@@ -29,45 +33,42 @@ client:on('messageCreate', function(message)
   end
 end)
 
+--Ping Pong function, generally just to see if its on or not without triggering a more complex function. Also tests if its really borked.
 client:on('messageCreate', function(message)
 	if tools.messageDectection(message, "ping") == true then
 		message.channel:send('Pong!')
 	end
 end)
 
-client:on('userBan', function()
-  local banChannel, err = client:getChannel("872283716486066200")
-  if not banChannel then
-    p("Attempt to fetch the channel object: ", err)
-    return
-  end
-  banChannel:send("User was banned ( ͡° ͜ʖ ͡°)")
-end)
-
+--Places elmo on fire in chat.
 client:on('messageCreate', function(message)
 	if tools.messageDectection(message, "fire") == true then
 		message.channel:send('https://tenor.com/view/elmo-fire-burn-flame-gif-5042503')
 	end
 end)
 
+--Dumps docs/help to chat, took me forever to figure out.
 client:on('messageCreate', function(message)
 	if tools.messageDectection(message, "helpme") == true then
     message.channel:send(tools.printFile("docs/help"))
 	end
 end)
 
+--Rolls a d20, check RNG for more info.
 client:on('messageCreate', function(message)
 	if tools.messageDectection(message, "roll") == true then
     message.channel:send(rng.d20())
 	end
 end)
 
+--Posts time to channel, stuck in military time, perhaps use a io.popen() to get actual system time in a more human readable format?
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "time") == true then
     message.channel:send('The current time in military time is ' .. os.date() .. ' atleast in Chicago!')
   end
 end)
 
+--Prints contents and attachments to console.
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "analyze") == true then
     print(message.content)
@@ -75,6 +76,7 @@ client:on('messageCreate', function(message)
   end
 end)
 
+--Parrots input to cowsay, then echos it to the same channel you are in.
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "figlet ") == true then
     local figletthis = string.sub(message.content, 9)
@@ -84,6 +86,7 @@ client:on('messageCreate', function(message)
   end
 end)
 
+--Parrots input to cowsay, then echos it to the same channel you are in.
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "cowsay ") == true then
     local cowsay = string.sub(message.content, 9)
@@ -93,6 +96,7 @@ client:on('messageCreate', function(message)
   end
 end)
 
+--Echo's what you said back out, in a fix codeblock. Could be against TOS.
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "echo ") == true then
     local echo = string.sub(message.content, 7)
@@ -103,6 +107,7 @@ client:on('messageCreate', function(message)
   end
 end)
 
+--When anyone preforms welsh, send gif. You know the drill
 client:on('messageCreate', function(message)
   if tools.messageDectection(message, "welsh") == true then
     image = "https://cdn.discordapp.com/attachments/748713417489252503/770289379586867231/image0.gif"
@@ -110,6 +115,17 @@ client:on('messageCreate', function(message)
     message:delete()
   end
 end)
+--Non command stuff past this line
+
+--When a user is banned, post a lenney.
+client:on('userBan', function()
+  local banChannel, err = client:getChannel("872283716486066200")
+  if not banChannel then
+    p("Attempt to fetch the channel object: ", err)
+    return
+  end
+  banChannel:send("User was banned ( ͡° ͜ʖ ͡°)")
+end)
 
 --Insert Token in a .lua file with simply returns it as a string.
 local token = require("./token.lua")

rng.lua

@@ -1,6 +1,7 @@
 local rng = {}
 local tools = require("./tools.lua")
 
+--Rolls a d20, if output is 1, Critical miss(or Shit), if output is 20, critical hit.
 function rng.d20()
     tools.reseed()
     local dice = math.random(20)

tools.lua

@@ -1,11 +1,13 @@
 ---@diagnostic disable: undefined-global
 local tools = {}
 
-function tools.reseed()
+--initializes or re-initializes the seed of RNG, based on Unix Time.
+function tools.seed()
     local seed = os.time()
     math.randomseed(seed)
 end
 
+--Reads an entire file, outputs as string.
 function tools.printFile(file)
     local rawFile = io.open(file, r)
     local message = rawFile:read("*all")
@@ -13,6 +15,7 @@ function tools.printFile(file)
     return message
 end
 
+--Message detection logic. If string.find detects both the desired string, and the key, starting at position 1, do the thing.
 function tools.messageDectection(message, search)
     local distinctMessage = string.lower(message.content)
     local key = "!"
@@ -24,6 +27,7 @@ function tools.messageDectection(message, search)
     end
 end
 
+--Special message detection logic. If string.find detects both the desired string, do the thing. Useful for chat filers.
 function tools.messageDectectionAnywhere(message, search)
     local distinctMessage = string.lower(message.content)
     if string.find(distinctMessage, search) ~= nil then