PIT

Markets, inputs, and agents the desk can hold.

Implemented is not a government interface. The desk has to replay the trace it is given and recompute efficiency from the orders.

SurfaceCoverageStatus
Second-price saleOne unit, sealed bids, pays the second-highest bid.Implemented
First-price saleOne unit, sealed bids, pays own bid. Risk-neutral Nash reference.Implemented
Sequential two-unit saleTwo rounds; round-1 price announced before round 2.Implemented
Simultaneous two-unit saleTop two bids win at the third-highest bid.Implemented
Double auctionFive buyers, five sellers, midpoint crossing, cleared each period.Implemented
News feedOne material and one immaterial event per run.Implemented
Trace JSON (schema pit.1)Load in the workspace. Validated by a type guard, replayed in the browser.Implemented
ClassifiersOverbid, winner's curse, ignored news, synchronized prices, reversed preferences, under the human band.Implemented
Shareable receiptDemo URL carries structure, stage, and repeat.Implemented
Laptop browserStandalone after first load. Replay is local.Implemented
Offline replayNo model is called at view time. The desk reads frozen orders.Implemented
Live model calls from this siteNot performed. Runs are frozen by the operator.Blocked
Operational / CUI filesNot accepted on deadindex.com.Blocked

Model families in the reference run

One stock agent per family. These agents run only inside the simulated market.