Unhandled Promise Rejection: MCP Connection Closed Error

[humanwritten]

Bug Description

\seeing this occaslioanly but it doesn't seem to be causing issues, i don't think that it's any mcp that i have connected or at least from my read of the below it seems unrelated, has appeared twice randomly
This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason: McpError: MCP error -32000: Connection closed at Ql1._onclose (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1319:12595) at _transport.onclose (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1319:12095) at W.J.client.transport.onclose (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1911:7611) at _4.onCloseHandler (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1329:8209) at _4.emit (node:events:507:28) at _4.emit (node:domain:489:12) at _4.emitClose (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:148:69553) at Socket.WG0 (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:148:80025) at Socket.emit (node:events:507:28) at Socket.emit (node:domain:489:12)

Environment Info

• Platform: darwin
• Terminal: cursor
• Version: 1.0.27
• Feedback ID: 211bec9b-bf16-49e2-877a-c1e41290e92f

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:882:11)\n    at execSync (node:child_process:954:15)\n    at wZ (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:659:3921)\n    at file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:9014\n    at Q (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:526:17199)\n    at QX (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:8160)\n    at $S (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:7241)\n    at L9 (file:///Users/timapple/.nvm/versions/node/v23.9.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:582:11408)","timestamp":"2025-06-18T14:52:07.821Z"}]