Using it in the browser

Both the validator and linter entries are browser-safe: no Node built-ins, no file access, no network. Import them through any bundler:

import { validateDtcg } from 'open-design-tokens/validator';
import { lintDtcg } from 'open-design-tokens/linter';

Sizes, minified and compressed: about 10 kB for the validator and 14 kB for the linter. The root entry includes both. Tree-shaking works per entry, and the validator never pulls in linter code.

File-based configuration (dtcg-lint.config.*) and the CLI are Node-only; in the browser pass a config object to lintDtcg directly.

The playground is a plain static page that does exactly this, under a strict Content Security Policy with no inline scripts and no network access.