Invalid JSON Request: Malformed Surrogate Character in API Payload

Bug Description
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 column 105486
(char 105485)"}}

Environment Info

• Platform: win32
• Terminal: pycharm
• Version: 1.0.65
• Feedback ID: 32d0304a-4f37-437a-b52a-b73d4602dce3

Errors

[{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1474:421\n    at Object.useMemo (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:65:26368)\n    at C$9.useMemo (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:46:15588)\n    at lV (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1474:313)\n    at XR (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:65:19859)\n    at Nb (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:67:42848)\n    at $b (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:67:38369)\n    at eS (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:67:38297)\n    at jR (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:67:38151)\n    at LK (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:67:35214)","timestamp":"2025-08-01T19:25:10.239Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 105486 (char 105485)\"}}\n    at t4.generate (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1319:12486)\n    at TP.makeStatusError (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1336:2101)\n    at TP.makeRequest (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1336:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async KfB.qF1.showErrors (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:14401)\n    at async qF1 (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2463:5642)\n    at async KfB (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:14252)\n    at async file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:9308\n    at async sM0 (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:1689)\n    at async O11 (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:9278)","timestamp":"2025-08-01T19:31:04.928Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 105486 (char 105485)\"}}\n    at t4.generate (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1319:12486)\n    at TP.makeStatusError (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1336:2101)\n    at TP.makeRequest (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1336:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async KfB.qF1.showErrors (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:14401)\n    at async qF1 (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2463:5642)\n    at async KfB (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:14252)\n    at async file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:9308\n    at async sM0 (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:1689)\n    at async O11 (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2981:9278)","timestamp":"2025-08-01T19:31:40.166Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: no low surrogate in string: line 1 column 105486 (char 105485)\"}}\n    at t4.generate (file:///C:/Users/regksem/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1319:1248

Note: Error logs were truncated.