#0011 simple-bridge medium
gpt-5.4-mini · scaffold-assembly-v1
CaSS 0 BOM 0 Scope 0 Build —
Model did not converge
model produced a non-conformant assembly (assembly instance counts must exactly match final_bom.parts quantities)
Task brief
Design a small LEGO footbridge: two square stone-grey pillars (each 2×2 studs and 4 bricks tall) standing 8 studs apart, with a flat deck on top spanning the gap and small railings along both long edges of the deck. Output a BOM.