Constantly running into "API Error: 400 due to tool use...

Bug Description
Constantly running into "API Error: 400 due to tool use concurrency issues."

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.0.22
• Feedback ID: e9773b09-c47f-4733-b191-5921b5a5c147

Errors

[{"error":"Error: 401 {\"type\":\"error\",\"error\":{\"type\":\"authentication_error\",\"message\":\"OAuth authentication is currently not supported.\"},\"request_id\":\"req_011CUH3E9gF3mfKyqeeFrR6N\"}\n    at E4.generate (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:203:83082)\n    at Jy.makeStatusError (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:2117)\n    at Jy.makeRequest (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:5330)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async BTQ.Ao1.model (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:18707)\n    at async Ao1 (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2650:39781)\n    at async BTQ (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:18875)\n    at async file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:12822\n    at async ba0 (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:4494)\n    at async Nm (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:12793)","timestamp":"2025-10-19T18:35:03.706Z"},{"error":"Error: 401 {\"type\":\"error\",\"error\":{\"type\":\"authentication_error\",\"message\":\"OAuth authentication is currently not supported.\"},\"request_id\":\"req_011CUH3EDgbsQWk1BzMFsRVN\"}\n    at E4.generate (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:203:83082)\n    at Jy.makeStatusError (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:2117)\n    at Jy.makeRequest (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:5330)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async BTQ.Ao1.model (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:18707)\n    at async Ao1 (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2650:39781)\n    at async BTQ (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:18875)\n    at async file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:12822\n    at async ba0 (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:4494)\n    at async Nm (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:12793)","timestamp":"2025-10-19T18:35:04.636Z"},{"error":"Error: 401 {\"type\":\"error\",\"error\":{\"type\":\"authentication_error\",\"message\":\"OAuth authentication is currently not supported.\"},\"request_id\":\"req_011CUH3EEYSdo9jEW1ZXxdHQ\"}\n    at E4.generate (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:203:83082)\n    at Jy.makeStatusError (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:2117)\n    at Jy.makeRequest (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:5330)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async BTQ.Ao1.model (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:18707)\n    at async Ao1 (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:2650:39781)\n    at async BTQ (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:18875)\n    at async file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:12822\n    at async ba0 (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:4494)\n    at async Nm (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:3310:12793)","timestamp":"2025-10-19T18:35:04.846Z"},{"error":"Error: 401 {\"type\":\"error\",\"error\":{\"type\":\"authentication_error\",\"message\":\"OAuth authentication is currently not supported.\"},\"request_id\":\"req_011CUH3EFPHxLJyr7YKpxAYJ\"}\n    at E4.generate (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:203:83082)\n    at Jy.makeStatusError (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:2117)\n    at Jy.makeRequest (file:///Users/azim/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:357:5330)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async BTQ.Ao1.model (file:///Users/azim/.claude/local/node_modules/@anthropic

Note: Error logs were truncated.