MaxStack

A small World of Warcraft addon that adds stack information to item tooltips.

What it does

When you hover an item, this addon adds stack details directly to the tooltip:

• If the item is being hovered from a bag slot, it shows:

  Stack: current / max

  Example:

  Stack: 4 / 20

• If the item is being hovered from anywhere else and the current bag stack cannot be determined, it shows:

  Max Stack: max

  Example:

  Max Stack: 20

Features

• Adds maximum stack size to item tooltips
• Detects when the tooltip comes from a bag slot
• Shows current stack / max stack for bag items
• Falls back cleanly to max stack only when bag slot data is not available
• Prevents duplicate tooltip lines when the tooltip refreshes
• Supports both:
  • older bag API (GetContainerItemInfo, GetContainerItemLink)
  • newer bag API (C_Container.GetContainerItemInfo, C_Container.GetContainerItemLink)

Example

Bag item hover

Stack: 4 / 20

Non-bag item hover

Max Stack: 20

Why this exists

By default, WoW does not always show stack information in a quick, readable way when hovering items. This addon makes it easier to see:

• how many items are in the current stack
• how large the stack can become

This is especially useful for:

• cloth
• herbs
• ores
• gems
• consumables
• profession materials
• any other stackable item

How it works

The addon hooks the main game tooltip and tracks bag-slot context when an item is hovered from the backpack.

• On tooltip clear, it resets stored bag data
• On bag item hover, it stores the bag and slot
• On tooltip set, it:
  • gets the item link
  • gets the item's max stack size
  • checks whether the tooltip came from a matching bag slot
  • shows either:
  • current stack / max stack
  • or max stack only

Notes

• This addon modifies the tooltip only
• It does not add text to item icons or bag slots
• Current stack size is only shown when the tooltip comes from a valid bag slot
• If item data is not cached yet, the stack line may not appear until the item info becomes available

Summary

Stack Size Tooltip is a lightweight quality-of-life addon that improves item tooltips by showing:

• current stack / max stack for bag items
• max stack size for all other hovered items

Simple, clean, and useful for everyday inventory management.