msvg-schema

TypeScript types, JSON Schemas, and validators for msvg (MotionSVG) animation packages. Zero dependencies. This is the package that makes msvg animations safe for both humans and AI agents to edit: every motion file is structured JSON that validates before it runs.

Install

npm install msvg-schema

Use

import { validatePackage, isValidEasing, easings, durations } from "msvg-schema";

const { valid, issues } = validatePackage({ config, targets, timelines, states });
if (!valid) {
  // each issue: { severity: "error" | "warning", code, path, message, suggestion? }
}

Granular validators are exported too: validateManifest, validateTargets, validateTimelines, validateStates, validateAccessibility — plus the full type definitions for every file in a package and the easings / durations design tokens.

For command-line validation of a package folder, use msvg-cli:

npx -p msvg-cli msvg validate path/to/animation

More

• Package format — every file explained
• Spec — the normative reference
• Runtime: msvg-core

MIT © ariadng