Validate in CI
Fail a build on bad content before it ships.
justjson validate walks your content/ and reports anything that would break your build: missing required fields, type mismatches, broken relations, duplicate slugs, and images pointing at missing media. It exits non-zero on errors:
npx @kdrgny/justjson validate # human-readable
npx @kdrgny/justjson validate --json # machine-readable, for CI
npx @kdrgny/justjson validate --strict # warnings fail too