From Riftui Wiki
Provides detailed information about achievements.
detail = Inspect.Achievement.Detail(achievement) -- table <- achievement
details = Inspect.Achievement.Detail(achievements) -- table <- table
achievement: The identifier of the achievement to retrieve detail for.
achievements: A lookup table of identifiers of achievements to retrieve detail for.
detail: Detail table for a single achievement.
details: Detail tables for all requested achievements. The key is the achievement ID, the value is the achievement's detail table.
|| ID of the achievement's category.
|| true is the achievement is completed by this character. If the achievement has been completed by another of the player's characters, gives that character's name.
|| The achievement's description.
|| The faction that this achievement requires, either "guardian", "defiant", or nil.
|| Internal name of the achievement's icon.
|| The achievement's name.
|| The ID of the achievement immediately previous to this in a chain.
|| Table listing the requirements for this achievement. Each item may include multiple members.
|| The type of the requirement. Valid values include "achievement", "artifactset", "discover", "event", "quest", and "tradeskill".
|| The name of the requirement.
|| The count required for completion.
|| The count already completed.
|| Signals that this requirement is complete.
|| The id of whatever this requires.
|| The number of points this achievement awards for completion.
|| A number indicating the order that this achievement should be sorted in.
|| The ID of the title this achievement awards.