Invalid cursor

What it means

The cursor query parameter is not one this endpoint issued, or it belongs to a different endpoint or filter set.

Example detail messages returned with this error:

• cursor is not valid for this endpoint.

What to do

Pass the next_cursor value from the previous page unchanged, with the same filters. To start over, omit cursor.

Response shape

All fremforge API errors are RFC 9457 problem+json:

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

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