{
  "spec_element": {
    "id": "rc_cross_platform",
    "kind": "rubric_criterion",
    "slug": "cross_platform",
    "name": "cross_platform",
    "what_it_checks": "Checks that the spec renders identically across standard YAML 1.2 parsers: no exotic tags, no parser-specific extensions, no constructs that parse differently across languages.",
    "pass_threshold": "parses identically on 3+ standard YAML 1.2 loaders",
    "sort_order": 5,
    "created_at": "2026-07-02 05:29:54",
    "cite_as": "https://subagentspec.com/api/criteria/rc_cross_platform"
  }
}