Calg's Ready Check Fix

Ever started a ready check in the open world and been slapped with a red Lua error? This makes it stop.

Blizzard's own ready-check code has a bug on Classic Era: when someone hits ready check while you're out in the world (not in a dungeon or raid), the game trips over a missing difficulty value and throws an error like:

bad argument #1 to '?' (Usage: ...) in function 'ShowReadyCheck'

Calg's Ready Check Fix quietly patches that one code path so the error never shows up. The ready-check window itself works exactly as it always has — you just stop getting the pop-up.

Why you'll want it

• No more red error spam. Ready checks in the open world stop throwing a Lua error.
• Completely silent. No window, no minimap button, no slash commands, no settings — install it and forget it exists.
• Feather-light. One tiny file. It does its work at login and then gets out of the way.
• Surgical, not sloppy. The fix is scoped to only the ready-check call, so nothing else in your UI is touched and there's no lingering taint on shared game functions.

Getting started

1. Install the addon.
2. That's it. There's nothing to configure — the next open-world ready check just works.

Notes

• Built for WoW Classic Era.
• This works around a bug in Blizzard's default UI. If Blizzard ever fixes it on their end, this addon simply becomes harmless and can be removed.
• Found a bug or have an idea? Leave a comment — feedback is welcome.