[Bug] Anthropic API Error: Connection conflict when multiple Claude agents running locally

Bug Description
I am developing agentic platform using Claude Agent SDK. The moment I start that project on my local machine (spin up orchestrator and subagents), claudecode on the same machine throws the API Error and I need to restart the claude session. This renders claudecode impossible to use to develop this project.

Environment Info

• Platform: darwin
• Terminal: WarpTerminal
• Version: 2.1.38
• Feedback ID: 07d21b57-4f83-48d0-8e37-e335d6af40ed

Errors

[{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.70.custom.input_schema.properties: Property keys should match pattern '^[a-zA-Z0-9_.-]{1,64}$'\"},\"request_id\":\"req_011CXyyfcCUkHKTAhppRjBLE\"}\n    at generate (/$bunfs/root/claude:319:8796)\n    at makeRequest (/$bunfs/root/claude:358:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-10T07:16:06.569Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.70.custom.input_schema.properties: Property keys should match pattern '^[a-zA-Z0-9_.-]{1,64}$'\"},\"request_id\":\"req_011CXyyfdmVJSCJWdwe9WW3B\"}\n    at generate (/$bunfs/root/claude:319:8796)\n    at makeRequest (/$bunfs/root/claude:358:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-10T07:16:06.879Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.83.custom.input_schema.properties: Property keys should match pattern '^[a-zA-Z0-9_.-]{1,64}$'\"},\"request_id\":\"req_011CXyyg9AZbTJ7cwooVS56M\"}\n    at generate (/$bunfs/root/claude:319:8796)\n    at makeRequest (/$bunfs/root/claude:358:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-10T07:16:13.967Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.83.custom.input_schema.properties: Property keys should match pattern '^[a-zA-Z0-9_.-]{1,64}$'\"},\"request_id\":\"req_011CXyywZPWRXQz7RaMk43X8\"}\n    at generate (/$bunfs/root/claude:319:8796)\n    at makeRequest (/$bunfs/root/claude:358:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-10T07:19:42.876Z"},{"error":"Error: 400 {\"type\":\"error\",\"error\":{\"type\":\"invalid_request_error\",\"message\":\"tools.92.custom.input_schema.properties: Property keys should match pattern '^[a-zA-Z0-9_.-]{1,64}$'\"},\"request_id\":\"req_011CXz1p8iymFD3VXvYkVg1e\"}\n    at generate (/$bunfs/root/claude:319:8796)\n    at makeRequest (/$bunfs/root/claude:358:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-10T07:44:15.810Z"}]