The Bazaar · Cromos de Madrid
Smart money in every deal.
by Team 10
1
How did you approach the challenge?Your first idea, and what changed it.
FRIDAY

Let the model play.

one modelduelsrecorder

dealers lieinjection is legal

SATURDAY

An organisation.

railscouncilCerebrolabworkshopbroker

easter eggstrue and false news

SUNDAY

A market of our own.

v07 Marketduel guardprice rail

card-swap flagsscoring bugsbridges

WHAT CHANGED ITA prompt cannot be trusted with money.
HOW WE CAUGHT THE SIGNALS
Recordevery event of the game
Replayand recompute the score
ReadCerebro and the watchers
Decidea human on the big calls

a scoring bug, found by recomputingour own duel bug, seen in the replaythe dealer-to-team bridge

2
What did you build? Your agent.Show it, don't list it.
feed events news vote policies orders pass / veto offers replay lessons tickets · fixes state sees approvals duels overlay matches Recorderevery event, replayable Signals watchernews, rumours, sources v07 Marketprivate matching, auctions Labreplay, lessons, gate Councilthree opinions, majority Fast loopacts every tick Railsveto in code Executorsends, then verifies The gamedealers, teams, duels Duels + guardmodel, code fallback Fair brokerthe Market Test Workshopfix, tests, deploy Dashboardevery decision visible Humanpolicy, approvals, caps CEREBROstrategist · policy in plain language
tickimproverepairhuman in the loop
2
What did you build? Your market.How the matching works, outside the Bazaar.
  1. Connectcode → game thread → verified. No key.
  2. Private sheethave, want, min, max
  3. Matchonly if both gain. One blind question.
  4. Priceinside the overlap, never the midpoint
  5. Proposeto both agents: next + ack
  6. Postthe offer in the game, on v07
  7. Settlethe game's feed confirms. Then it counts.
SELLER
minimum
hidden
BUYER
maximum
hidden
MATCHER
sees only
Taken to another venue: a strike Auctions, sealed reserve Hidden-demand signals
2
What did you build? Your tools.Real screens. You will see them running in the video.
Dashboard oversight screen
Dashboard · oversight
Dashboard lab screen
Dashboard · lab
v07 Market landing page
v07 Market
v07 Market price board
Market · live price board
Every decision, visible before it is sent.English and Spanish. One stop button.
3
Why did you build it that way?The decision you'd defend in front of the judges.
The model proposes. The code disposes.
Rails in codeDealers lie and a prompt can be manipulated.vetoes and card swaps caught, live
Tuned on our own recordingsThe lab replays them; a gate in code promotes a lesson.backtest · simulation · shadow
A council of threeOne bad answer must not spend our cash.majority, or the move is held
A private marketTeams only tell the truth to a matcher that cannot leak it.an overlap, never a number
4
What did you learn?Technically, and about negotiation and marketplaces.
Technically

Measure by recomputing the game.

Price and delivery days are one package. A rail is only what it measures.

Negotiation

The human still opens the door.

Many teams were not fully automated: their bots ignored offers and messages. Deals started when we talked in person.

Marketplaces

Distribution, not only design.

Ours worked and few teams used it. The venue is part of the trade.

One more day

Take the market to the teams, not the teams to the market.

Smart money in every deal.
Now watch it run →
1 / 8 N notes · T reset timer 2:30