Cutouts That Survive a Zoom

What it is for

A checking routine for background removals that are going onto a real product page. It fixes the order you inspect the edge in, forces the white-versus-grey halo test, and separates the transparent master from the flat exports a marketplace demands. It prevents cutouts that pass at thumbnail size and fall apart the moment a customer zooms.

The skill Copy

Use this before any cutout goes onto a product page.

Pick the source photo first. Automatic cutting fails on low contrast: a
black bag on a dark sofa costs twenty minutes of hand cleanup that a
re-shot frame costs nothing. Never start from a screenshot or a photo
re-saved by a chat app - compression noise becomes a fringed edge.

Remove the background, then inspect at full zoom in this order:
- Hair, fur, fringe, lace, mesh. Automatic edges break here first.
- Handles, straps, spouts, buckles, and any hole that should show
  through. A filled-in gap looks fine as a thumbnail and wrong on the
  page.
- Glass and anything transparent. Decide on purpose whether the new
  background shows through, then confirm the label is still readable.
- Thin things: cables, stems, earring hooks, chair legs.

Check the edge twice, once against white and once against mid grey. A
halo of the old background is invisible on one and obvious on the other.

Repair by hand rather than re-running the automatic cut:
- Restore what was eaten, erase what was left, at a small brush size.
- Zoom to the edge you are fixing, not to the whole product.

Export rules:
- Keep the transparent master. Everything else is derived from it.
- A marketplace that demands a pure white field wants a flat white
  export, not the light grey that reads as white on your monitor.
- Keep margins even and let the product fill most of the frame. A small
  product in a huge empty canvas reads as a placeholder image.

Ship nothing you have not looked at once at full zoom.

How to install it Copy

1. Open the tool and start a new conversation, project or template.
2. Paste the text below wherever the tool keeps standing instructions
   — usually called system prompt, instructions, or persona.
3. Save it so it applies to every run rather than a single message.

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Where it came from