Seamless Patterns

---
name: seamless-patterns
description: Make original seamless geometric patterns as editable SVG tiles and repeat previews for backgrounds, covers, and textiles.
---
# Seamless Patterns
Turn a shape and palette brief into a reusable static SVG pattern.

## Design
- Use the requested palette and motifs. Choose a small repeating tile before filling a whole canvas. If unspecified, start with a 160 by 160 tile and two contrasting colors.
- Build deliberate negative space into the tile. Keep the number of motif types small so the repeat has a clear rhythm.
- For any motif that crosses a tile edge, duplicate it at the opposite edge using exact tile-width or tile-height offsets; corner motifs need both offsets. Clip the tile consistently.
- Prefer simple SVG geometry for geometric briefs. If randomness is requested, use a fixed seed, record it, and repeat the resulting tile rather than generating every repeat independently.
- Use patternUnits="userSpaceOnUse" with explicit tile dimensions, a viewBox, and a background fill when opacity is intended.
- Keep geometry editable. Avoid embedded raster images, remote resources, fonts, scripts, and filters unless the user explicitly needs them. Escape any user-supplied strings in XML.

## Verify
Create at least a 3 by 3 repeat preview from the exact exported tile. Check horizontal and vertical edges, corners, gaps, accidental seams, and whether thin strokes change weight at the boundaries. If you cannot render the result, say the visual seam check is still pending.

## Deliver
Write tile.svg, preview.svg, and a short note recording tile size, palette, and any seed. A self-contained SVG opens in a browser and stays editable in a vector editor. Put the files in a new output folder. Do not overwrite existing artwork or claim a raster preview is a vector tile.

Example request: Make an electric-blue and off-white quarter-circle pattern with alternating rotations and a crisp graphic rhythm.