Function encodeOffsetCursor

server/src/training-agent/pagination.ts:8–10

(kind: string, offset: number)

// specific list endpoint so a caller can't move a list_creatives cursor onto
// list_accounts and accidentally land at a meaningful offset.
export function encodeOffsetCursor(kind: string, offset: number): string {
  return Buffer.from(`${kind}:offset:${offset}`).toString('base64url');
}

// Returns null when the cursor is present but malformed (or scoped to a
// different list endpoint). The caller MUST surface INVALID_REQUEST in that