SVG Preflight MCP

SVG Preflight MCP helps agent workflows check image geometry before a visual editing step. It exposes two executable MCP tools over local stdio: validate_crop checks source-pixel bounds, and fit_dimensions returns proportional output dimensions with an explicit upscaling policy. A 2400 x 1600 source fitted within 600 x 600 becomes 600 x 400. Crops touching an edge, out-of-bounds rectangles and invalid input types are handled explicitly. The implementation uses Python standard-library code, needs no API key and makes no network requests. Public source, MIT licensing and subprocess tests cover initialization, discovery and actual tool calls. A compatible MCP client supplies the agent integration; this server performs deterministic geometry calculations rather than generating images or tracing vectors. The same publisher maintains JPG to SVG. After checking dimensions, users can optionally continue in its browser image editor at https://jpgtosvg.io/image-editor/ for local crop, resize, raster export and SVG tracing. The independent MCP server does not control that website or expose its conversion engine.