ajv-merge-patch

Custom keywords $merge and $patch for Ajv JSON Schema validator, enabling schema extension via JSON Merge Patch (RFC 7396) and JSON Patch (RFC 6902). Version 5.0.1 supports Ajv >=8.0.0, released sporadically. Unlike base Ajv, these keywords allow dynamic schema composition without manual copy-paste. Used for recursive schemas and meta-schema customization.