📖What it does

Decides exactly which bucket each project card belongs in.

📖In more detail

On the projects board, every card has to sit in one correct column. This is the rulebook that decides where each card goes, with no duplicates or stragglers. The projects board relies on it.

📖Why it exists

Keep every monitor card in exactly one correct bucket

📖Facts

Formal name: Card Invariants.

Category: Monitoring-accountability.

Owner: Elrond.

Keeps it running: Radagast.

Status: active.