The measurable image + document toolkit for JavaScript. On flat art -- logos, icons, UI, screenshots, pixel art -- the SVG is bit-exact: SSIM 1.0000, zero differing pixels, verified by rendering it back. On photographs it leads potrace, imagetracerjs and

Eyes for text-only DeepSeek Harness agents: built-in free vision chain (no key) + pixel-level vision tools (Q&A, grounding, crop, pixel diff, colors, OCR, SVG trace, cutout, screenshots). One-command install, no Python, image turns work like ordinary tool-calling turns.