Invalid audiences

What it means

The request was malformed, or a field failed validation.

Example detail messages returned with this error:

• allowed_audiences must be an array of strings.
• allowed_audiences: at most 16 entries.
• allowed_audiences entry exceeds 256 chars: {line.slice(0, 40)}…

What to do

Correct the audiences value - detail names what was wrong.

Response shape

All fremforge API errors are RFC 9457 problem+json:

{
  "type": "https://docs.frem.sh/reference/api/errors/invalid-audiences",
  "title": "Bad Request",
  "status": 400,
  "detail": "..."
}

Branch on type, not on title or detail - those are human-readable and may be reworded.