サロゲートペア文字？
今朝、Claude Code を使っていたら、次のようなエラーが出た。
⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string: line 1 colum ...
⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: no low surrogate in string: line 1 colum ...