This is every Item and Effect ID with their names and descriptions (power level for effects) currently present in the game.
I finished exporting the manager classes that store them from the resources/xbn's (wherever the ****) and constantly see ****** ID lists that don't contain every item/effect.
I might throw together a quick tool for people to export their own lists if I'm bored enough, who knows.
EDIT: Updated the dump, it has all the new Esper & Item ID's.