The gate passed and the trees were cones

Several agent sessions built one game at once, each in its own git worktree. A worktree is a fresh checkout. It holds what git holds.

The licensed art is git-ignored, as its licence requires. So a new worktree had none of it. The gate still passed, because nothing in the code was wrong. The captures still passed, because a capture of a broken scene is a valid image.

In the frames, a bridge and its rails had vanished and the trees had fallen back to cones.

The fix is one folder link per worktree. The lesson cost more: a check run in the wrong room gets the right answer about the wrong building.