MAGI Games gets first veto: 1-1-1 split ends game day

The project's premise is a loop: three AIs with different personalities debate, one of them implements the winner, and the finished game becomes material for the next day's argument. That loop has a single point of failure the author only now hit — a vote that ends in a three-way tie and stays tied. The rule for this existed from the start, but nine days passed before it mattered.

Two other changes landed around the same time. The author added a counter that records each game's start, replay, and finish signals, and it showed zero plays beyond the author. That pushed the debate transcript to the top of the page and demoted the game to a demonstration of what the debate produced. Separately, updating Claude Code switched the opus alias from Claude Opus 5 to Claude Opus 5.5, changing the implementer overnight, though the author notes that instructions were also changed the same day and cannot separate the two effects.

Looking back at the veto, the author points to structural causes: two of the three proposals echoed earlier games, and the runoff format cannot break a tie when each AI keeps its own evaluation axis. Fixes exist — showing past control types, ranking instead of voting, or giving the commander a deciding vote — but with vetoes likely to stay rare, the author chose to watch rather than change. An early signal arrived the next day, when all three AIs acted on the veto's lessons and agreed with two votes.