[Bug] Anthropic API Error: Duplicate tool names causing compaction failure

Resolved 💬 3 comments Opened Dec 16, 2025 by Botoxx Closed Dec 20, 2025

Bug Description
I recently installed some plugins, eg: asana, vercel. Now im facing an error what ive never seen before, when trying to compact: > /compact
⎿ Error: Error during compaction: Error: API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"tools: Tool names must be unique."},"request_id":"req_011CWB6xthJskQXtNRyNpktx"}

Environment Info

  • Platform: linux
  • Terminal: vscode
  • Version: 2.0.70
  • Feedback ID: 7c790091-1fed-414f-931e-41ff16b3b719

Errors

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools: Tool names must be unique.\"},\"request_id\":\"req_011CWB6VfvbtUH9jMtgNdPvV\"}\n    at B9.generate (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:459:10797)\n    at q_.makeStatusError (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:796:2195)\n    at q_.makeRequest (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:796:5419)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async w11.model (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4493:6319)\n    at async w11 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1232:18701)\n    at async $d2 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4493:6473)\n    at async file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4491:3797\n    at async Jp1 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:946:2037)\n    at async uJA (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4491:3767)","timestamp":"2025-12-16T21:43:16.365Z"},{"error":"Error: API Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools: Tool names must be unique.\"},\"request_id\":\"req_011CWB6VfvbtUH9jMtgNdPvV\"}\n    at sB1 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1651:1556)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async ieB (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1725:3259)\n    at async J$ (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1861:2369)\n    at async J$ (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1861:7648)\n    at async file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2776:1969\n    at async file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2776:2810\n    at async wY5 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2758:4641)\n    at async v51 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2758:3380)\n    at async file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2776:3152","timestamp":"2025-12-16T21:43:16.375Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools: Tool names must be unique.\"},\"request_id\":\"req_011CWB6YrUSUgWvvTESv4qoV\"}\n    at B9.generate (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:459:10797)\n    at q_.makeStatusError (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:796:2195)\n    at q_.makeRequest (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:796:5419)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async w11.model (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4493:6319)\n    at async w11 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1232:18701)\n    at async $d2 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4493:6473)\n    at async file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4491:3797\n    at async Jp1 (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:946:2037)\n    at async uJA (file:///home/b0t1/.nvm/versions/node/v24.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:4491:3767)","timestamp":"2025-12-16T21:43:59.612Z"},{"error":"Error: API Error: 400 {\"type

Note: Error logs were truncated.

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