Kernrechtsfrage
Whether the federal appeal satisfied the requirements of Art. 42 BGG and was filed in admissible form within the non-extendable time limit.
Extrahierter Entscheid
The appeal did not meet the mandatory requirements: it contained no substantive request and no minimally reasoned challenge to the cantonal decision, and the promised later supplement could not cure this within the fixed appeal period.
Extrahierte Begründung
Under Art. 42 BGG, an appeal must include requests and reasons. Those elements must be filed within the legal time limit, which cannot be extended under Art. 47 BGG. A mere notice of intent to appeal is insufficient.