Invalid JSON Parsing Error in Anthropic API Request

Resolved 💬 3 comments Opened Aug 7, 2025 by bthornemail Closed Aug 15, 2025

Bug Description
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⎿ API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"The request body is not valid JSON: invalid high surrogate in string: line 1 column 289230 (char 289229)"}}

Environment Info

  • Platform: linux
  • Terminal: vscode
  • Version: 1.0.70
  • Feedback ID: 9bf58e8b-2110-4459-abc3-97fbcef4ead1

Errors

[{"error":"Error: Error parsing line in /home/main/.claude/projects/-home-main-github-UniversalLifeProtocol/7ca44f52-6ded-4ca2-adf9-cd18c03caab8.jsonl: SyntaxError: Unexpected token '\^@', \"\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\"... is not valid JSON\n    at file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:739:80\n    at Array.map (<anonymous>)\n    at Or1 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:739:26)\n    at async file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:748:1387\n    at async Promise.all (index 5)\n    at async D$2.<anonymous> (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:748:1113)\n    at async D$2.getAllTranscripts (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:748:45)\n    at async I$2 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:748:3204)\n    at async Qo (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:748:5290)\n    at async J (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2409:2005)","timestamp":"2025-08-07T14:52:11.807Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: invalid high surrogate in string: line 1 column 289230 (char 289229)\"}}\n    at e4.generate (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1226:2303)\n    at fP.makeStatusError (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1243:2101)\n    at fP.makeRequest (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1243:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async uF1.showErrors (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:14312)\n    at async uF1 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2667:3471)\n    at async ogB (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:14163)\n    at async file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:9209\n    at async FO0 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:1689)\n    at async k11 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:9179)","timestamp":"2025-08-07T14:52:42.002Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"The request body is not valid JSON: invalid high surrogate in string: line 1 column 289230 (char 289229)\"}}\n    at e4.generate (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1226:2303)\n    at fP.makeStatusError (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1243:2101)\n    at fP.makeRequest (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1243:5315)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async uF1.showErrors (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:14312)\n    at async uF1 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2667:3471)\n    at async ogB (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:14163)\n    at async file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:9209\n    at async FO0 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:1689)\n    at async k11 (file:///home/main/.nvm/versions/node/v22.16.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:3189:9179)","timestamp":"2025-08-07T14:54:07.060Z"}]

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