Overview

Coding agents write clean, semantic SVG but cannot see their output. When an agent recreates a logo as SVG from a raster reference, it has no way to tell how close it got. agent-svgtools closes that loop: it renders the SVG, scores it against the reference, localizes the errors, and produces comparison images a vision model can read — all machine-first, so the result drops straight back into an iterate-and-improve cycle.

• Pure Rust, single static binary — no C dependencies.
• Machine-first output — TOON by default (token-efficient for LLMs), with JSON, JSONL, and pretty-printing on tap.
• Scoring engine — pixel match %, SSIM, a combined score, and ranked error regions with pixel-coordinate bounding boxes.
• Artifacts — diff heatmaps, labeled side-by-side panels, onion-skin blends, and coordinate grids, written only to the paths you ask for.

Prebuilt binaries for macOS (arm64/x64), Linux (x64/arm64, musl static), and Windows (x64) are attached to every release.