[kingxerjsaeg]

I've made two json schemas for validating JD2's crawler rule format.
They're available at github.com/sergxerj/jdownloader2-crawler-rule-json-schema including a config folder for working locally with them in visual studio code. Further instructions and a few tips are in the repo's README.md.

One scheme is for validating single rules, the other is for validating an array of rules. The latter is what you can "Ctrl+A, Ctrl+C; Ctrl+A, Ctrl+V" from the editor into JD2's "Link Crawler: Link Crawler Rules".

I'll make a PR to add it to schemastore.org.