The keeper

Markets start, settle and pay out without anyone pressing a button.

Every step in a market’s life is an instruction anyone can call. The keeper is our server calling them on time, so a market never waits for a person.

When	The keeper
A market is full, or its join window closed with at least two traders	Starts it and funds every sleeve
The join window closed with fewer than two traders	Cancels it and refunds everyone
A sleeve’s loss reaches 80% of its collateral	Liquidates it and unwinds it
A market has ended	Unwinds every sleeve, settles it, resolves its questions and pays out the duels

It refreshes prices before each step, and runs up to four rounds per market per pass.

How it’s triggered

• A scheduled job calls it every 10 minutes.
• Any open market page nudges it for that market every 30 seconds, so a market you’re watching moves on time.

Because each action is permissionless, anyone can run their own keeper. Liquidations pay a keeper fee.