Browser Automation Tools Fail to Launch on Windows 10 MCP Servers

Bug Description
in windows 10 mcp servers specifically playwright and puppeteer get installed but tool calls fail to start browser / can't browse

Environment Info

• Platform: win32
• Terminal: mingw64
• Version: 1.0.67
• Feedback ID:

Errors

[{"error":"Error: Duplicate agent 'ux-researcher' in user\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3055\n    at Array.filter (<anonymous>)\n    at QH8 (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:2983)\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3244\n    at Object.useMemo (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:65:26368)\n    at $$9.useMemo (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:46:15588)\n    at PbB (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3232)\n    at KR (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:65:19859)\n    at Mb (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:67:42848)\n    at Nb (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:67:38369)","timestamp":"2025-08-12T20:20:54.629Z"},{"error":"Error: Duplicate agent 'ui-designer' in user\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3055\n    at Array.filter (<anonymous>)\n    at QH8 (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:2983)\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3244\n    at Object.useMemo (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:65:26368)\n    at $$9.useMemo (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:46:15588)\n    at PbB (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3232)\n    at KR (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:65:19859)\n    at Mb (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:67:42848)\n    at Nb (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:67:38369)","timestamp":"2025-08-12T20:20:54.632Z"},{"error":"Error: Duplicate agent 'brand-guardian' in user\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3055\n    at Array.filter (<anonymous>)\n    at QH8 (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:2983)\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3244\n    at Object.useMemo (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:65:26368)\n    at $$9.useMemo (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:46:15588)\n    at PbB (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3232)\n    at KR (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:65:19859)\n    at Mb (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:67:42848)\n    at Nb (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:67:38369)","timestamp":"2025-08-12T20:20:54.636Z"},{"error":"Error: Duplicate agent 'performance-benchmarker' in user\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3055\n    at Array.filter (<anonymous>)\n    at QH8 (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:2983)\n    at file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modules/@anthropic-ai/claude-code/cli.js:2699:3244\n    at Object.useMemo (file:///C:/Users/Lokesh%20Motwani's%20Mac/AppData/Local/nvm/v22.17.0/node_modu

Note: Error logs were truncated.