[Bug] Anthropic API Error: Missing Tool Result Block

Resolved 💬 3 comments Opened Oct 1, 2025 by rikinjshah Closed Oct 4, 2025

Bug Description
⎿ API Error: 400
{"type":"error","error":{"type":"invalid_request_error","message":"messages.14:
tool_use ids were found without tool_result blocks immediately after:
toolu_014MXTnZBZGiNa7usCgPAgvr. Each tool_use block must have a corresponding
tool_result block in the next
message."},"request_id":"req_011CTfcxzUGKGPAMbkko21rZ"}

Environment Info

  • Platform: darwin
  • Terminal: cursor
  • Version: 2.0.1
  • Feedback ID: 38d07ca0-2488-4221-9093-5d901d078a9b

Errors

[{"error":"Error: 1: 1 \n    at d44 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1020:4089)\n    at async u44 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1020:1655)","timestamp":"2025-09-30T23:22:17.859Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at QK (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1741:1183)\n    at file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1741:911\n    at Array.map (<anonymous>)\n    at xX (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1741:902)\n    at dJB (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2847:9380)\n    at CC (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Fp (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at I9 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at Ch (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at TC (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-09-30T23:22:24.862Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"prompt is too long: 202748 tokens > 200000 maximum\"},\"request_id\":\"req_011CTfSvCJuLn34jQjs1iRqr\"}\n    at B4.generate (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:895:20956)\n    at yP.makeStatusError (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1034:2131)\n    at yP.makeRequest (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1034:5344)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async cG1.model (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:39804)\n    at async cG1 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:27733)\n    at async q2B (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:39958)\n    at async file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:34180\n    at async ZH0 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:9568)\n    at async r11 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:34150)","timestamp":"2025-09-30T23:24:21.104Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"prompt is too long: 202797 tokens > 200000 maximum\"},\"request_id\":\"req_011CTfSvLWGmaxivo9eTsAnB\"}\n    at B4.generate (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:895:20956)\n    at yP.makeStatusError (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1034:2131)\n    at yP.makeRequest (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1034:5344)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async cG1.model (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:39804)\n    at async cG1 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:27733)\n    at async q2B (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:39958)\n    at async file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:34180\n    at async ZH0 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:9568)\n    at async r11 (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1120:34150)","timestamp":"2025-09-30T23:24:22.767Z"},{"error":"Error: Request was aborted.\n    at ag._createMessage (file:///Users/rikinshah/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:899:4711)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"20

Note: Error logs were truncated.

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