[Bug] Anthropic API Error: Invalid JSON Request Body Parsing

Resolved 💬 4 comments Opened Aug 26, 2025 by albertgilopez Closed Jan 4, 2026

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 185600 (char
185599)"},"request_id":"req_011CSWzFpm2fJAVB2YtAVFVe"}

Environment Info

  • Platform: linux
  • Terminal: vscode
  • Version: 1.0.89
  • Feedback ID: d11f8f7a-4243-49a5-8613-430ca4cf1dbe

Errors

[{"error":"Error: 1: 1 \n    at I_6 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1839:4892)\n    at runNextTicks (node:internal/process/task_queues:60:5)\n    at process.processTimers (node:internal/timers:509:9)\n    at async Z_6 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1839:2187)","timestamp":"2025-08-25T19:57:12.901Z"},{"error":"Error: Failed to check bun permissions\n    at GN6 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1623:722)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async XK0 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1623:840)\n    at async L31 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1633:43)\n    at async file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:3434:10962","timestamp":"2025-08-25T19:57:13.720Z"},{"error":"Error: Failed to check bun permissions\n    at GN6 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1623:722)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async XK0 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1623:840)\n    at async L31 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1633:43)\n    at async file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:3434:10962","timestamp":"2025-08-25T19:57:21.050Z"},{"error":"ZodError: [\n  {\n    \"code\": \"invalid_type\",\n    \"expected\": \"string\",\n    \"received\": \"undefined\",\n    \"path\": [\n      0,\n      \"activeForm\"\n    ],\n    \"message\": \"Required\"\n  },\n  {\n    \"code\": \"invalid_type\",\n    \"expected\": \"string\",\n    \"received\": \"undefined\",\n    \"path\": [\n      1,\n      \"activeForm\"\n    ],\n    \"message\": \"Required\"\n  },\n  {\n    \"code\": \"invalid_type\",\n    \"expected\": \"string\",\n    \"received\": \"undefined\",\n    \"path\": [\n      2,\n      \"activeForm\"\n    ],\n    \"message\": \"Required\"\n  },\n  {\n    \"code\": \"invalid_type\",\n    \"expected\": \"string\",\n    \"received\": \"undefined\",\n    \"path\": [\n      3,\n      \"activeForm\"\n    ],\n    \"message\": \"Required\"\n  }\n]\n    at get error [as error] (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:733:17529)\n    at g$.parse (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:733:18789)\n    at mRB (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:2239:954)\n    at PJ5 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:2239:717)\n    at Kv1 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:2239:590)\n    at Object.resume (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:3440:22450)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)","timestamp":"2025-08-25T19:57:21.906Z"},{"error":"Error: Failed to check bun permissions\n    at GN6 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1623:722)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async XK0 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1623:840)\n    at async L31 (file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:1633:43)\n    at async file:///home/Usuario/.nvm/versions/node/v18.20.8/lib/node_modules/@anthropic-ai/claude-code/cli.js:3434:10962","timestamp":"2025-08-25T19:57:24.708Z"},{"error":"

Note: Error logs were truncated.

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