Manual create via country.add. The canonical JSON below is validated against the schema server-side; required fields vary by type. Provenance is auto-populated with source=mcp:<clientName>.

Canonical JSON { "name": "Mexico", "aliases": [ "México", "United Mexican States" ], "iso3166_1": "MX", "iso3166_1_alpha3": "MEX", "continent": "north-america", "currency": "MXN", "callingCode": "+52", "officialLanguages": [ "es" ] }

EntityRef fields (authors, publisher, directors, etc.) take the shape { "name": "...", "matchConfidence": "unresolved" } in this push — typeahead resolution lands next session.

Tags (comma-separated)