[
{
"code": "invalid-relation-endpoints",
"severity": "Error",
"span": {
"start": 139,
"end": 157,
"start_line": 5,
"start_column": 1,
"end_line": 5,
"end_column": 19
},
"semantic_path": ["relations", "supports", "g", "c"],
"message": "relation kind `supports` does not permit goal -> claim",
"hint": "choose endpoint node kinds allowed by the v1 relation matrix"
}
]