Read the repo before you plan
Ground every plan in the actual file tree, scripts, constraints, and current behavior.
Copy-ready instructions
Small, durable instructions for agents and the people working with them.
Ground every plan in the actual file tree, scripts, constraints, and current behavior.
A green build is useful evidence, but it is not evidence that the visible experience works.
Remove stale geometries, materials, textures, and render targets when scenes change.
Prevent a hidden tab or debugger pause from turning one frame into a physics explosion.
Use refs and the render loop for values that change every frame.
Keep simulation results stable across fast displays, slow frames, and recording tools.
Collision and contact callbacks need active events on the relevant collider.
Model ordinary objects in meter-like units instead of sending pixel coordinates directly into physics.
Focus reviews on project source and authored content by excluding generated outputs.
Domain reload settings can change whether static state resets between runs.