PI Manager v1.10.1

Power Infusion manager for Priests of all specializations. Fully compatible with WoW 12.0.7 (Midnight). Optimized for parties and raids up to 40 players.

Install

Copy the PIManager folder to:

World of Warcraft/_retail_/Interface/AddOns/PIManager/

Then /reload or restart the game. On login the addon prints a confirmation, and it creates the PIManager macro once you've fully entered the world.

How it works

PI Manager builds and maintains a normal Blizzard macro named PIManager in your macro book. Open /macro, drag it to any action bar slot, and bind that slot to whatever key you like. The addon keeps the macro body up to date automatically — you never edit it by hand.

The macro uses live target conditionals, so the actual recipient is resolved by the game at the moment you press it:

/cast [@<assigned>,help,nodead] Power Infusion   (plain cast if no one is assigned)
/cast [@player] Power Infusion
/use 13            (if Trinket 13 enabled and equipped)
/use 14            (if Trinket 14 enabled and equipped)
/use <bag> <slot>  (if a combat potion is enabled and found)

Cast behavior: if you've assigned someone and they're castable, Power Infusion lands on them. Otherwise — no assignment, or the assigned player is dead/gone/out of range — the cast falls through and the Priest talent Twins of the Sun Priestess distributes it to a nearby ally, preferring damage dealers. After each cast the addon prints who Power Infusion landed on.

Requires the Twins of the Sun Priestess talent for the automatic "pick a damage dealer" behavior. Without it, an unassigned or failed cast follows default WoW targeting (your current friendly target, or nothing) instead.

Features

Main GUI window — /pi to toggle, or left-click the minimap button
Two launch points: a LibDBIcon minimap button (tooltip shows the current assignment) and an entry in Blizzard's AddonCompartment menu
Status line in the window showing Power Infusion's cooldown (Ready / CD seconds) and who the next cast will target
Player list with class colors and faction tags ([A] Alliance / [H] Horde)
Rescan button (and /pi rescan) to force-rebuild the list from the current roster if it ever looks stale or incomplete
Auto-maintained Blizzard macro — drag from /macro to any action bar slot, bind however you like
Cast confirmation: after each cast, prints who Power Infusion landed on (assigned / Twins-distributed / self)
Trinket slot 13 / 14 toggles (only fire if the slot is equipped)
Combat potion toggle, with a custom potion set by drag-and-drop or by item ID / name
Debug + diagnostics output for troubleshooting

Slash commands

Command	Action
`/pi`	Toggle the window
`/pi hide`	Close the window
`/pi assign <name>`	Assign PI to a player
`/pi clear`	Clear the assignment
`/pi trinket1 [on\|off]`	Toggle/set Trinket slot 13 usage
`/pi trinket2 [on\|off]`	Toggle/set Trinket slot 14 usage
`/pi potion [on\|off]`	Toggle/set combat potion usage
`/pi setpotion <id\|name>`	Set custom potion by item ID or exact name
`/pi clearpotion`	Clear custom potion (revert to default list)
`/pi rescan`	Force-refresh the player list from the current roster
`/pi macro`	Create/update the Blizzard macro for action bars
`/pi fix`	Re-attach the minimap button if it stopped responding
`/pi diag`	Print full diagnostic info
`/pi debug [on\|off]`	Toggle/set debug logging
`/pi reset`	Wipe all saved settings
`/pi help`	Show the command list

Raid-safety design

Built to be quiet in 40-player raid content:

No OnUpdate polling. Status line and target resolution refresh only on game events (roster changes, equipment changes, combat boundaries).
Pre-allocated scratch tables. FindCastTarget reuses the same tables across calls — zero allocations per raid scan.
Single-pass O(n) raid scan. One walk through the roster categorizes each member inline.
Row pool. Player list rows are created once and reused; no CreateFrame churn during raid events.
No SPELL_UPDATE_COOLDOWN. That high-frequency event is never registered.
Combat-safe macro updates. EditMacro/CreateMacro are gated by InCombatLockdown; updates that hit during combat defer to PLAYER_REGEN_ENABLED.
Change-detected macro writes. The macro body is only rewritten when its content actually changes.
Duplicate-safe macro creation. The addon scans all macros before creating one, so it never spawns duplicate PIManager macros, and warns you if extras already exist.

Files

PIManager/
├── PIManager.toc          Addon manifest (Interface 120007)
├── PIManager.lua          All addon code
├── README.md              This file
├── IRONCLAD_RULES.md      Development/design rules
└── libs/
    ├── LibStub/
    ├── CallbackHandler-1.0/
    ├── LibDataBroker-1.1/
    └── LibDBIcon-1.0/     For the minimap button

Notes

A previous version included whisper/say/party "notify on cast" options. These were removed because the WoW server blocks/throttles addon-automated whispers (an anti-spam measure), so they could not be made reliable. See IRONCLAD_RULES.md for details.

Coding disclosure

This project was entirely vibe coded using Claude Opus 4.8. The addon — including its target resolution, auto-maintained Blizzard macro, minimap button, player list UI, and documentation — was developed iteratively in conversation with the model rather than hand-written line by line.