> ## Documentation Index
> Fetch the complete documentation index at: https://docsuncv2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# getcallingscript

Returns the script that called the current function, or `nil` when called directly from the executor's main thread.

```luau theme={null}
getcallingscript(): LuaSourceContainer?
```

Used inside `hookfunction()` or signal callbacks to find which script triggered the call. If you only need to know whether the caller was your script or a Roblox-side one, use `checkcaller()` instead.

## Returns

[`LuaSourceContainer`](https://create.roblox.com/docs/reference/engine/classes/LuaSourceContainer)? - the Roblox script that called the function.<br />`nil` when called directly from the executor's main thread.

## Example

<CodeGroup>
  ```luau Example 1 theme={null}
  <<<<<<< HEAD
  local callingScript = getcallingscript()
  =======
  -- getcallingscript(): LuaSourceContainer?
  >>>>>>> 50e30f53759b0538759af25c9b271514aa2c9290
  ```

  ```luau Example 2 theme={null}
  local mt = getrawmetatable(game)
  setreadonly(mt, false)

  local orig
  orig = hookmetamethod(game, "__namecall", function(self, ...)
      if getnamecallmethod() == "PromptPurchase" then
          local caller = getcallingscript()
          print(`PromptPurchase called from: {caller and caller:GetFullName() or "executor"}`)
      end

      return orig(self, ...)
  end)
  ```
</CodeGroup>

<Tip>
  Always check parameters and return values when working with this library function.
</Tip>