claude-code - 💡(How to fix) Fix [Bug] Claude generates hallucinated content without grounding in provided context

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Error Message

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/stulentsev/.local/share/claude/versions/2.1.132 (expected in multi-process scenarios)\n at I96 (/$bunfs/root/src/entrypoints/cli.js:2651:2257)\n at ZRH (/$bunfs/root/src/entrypoints/cli.js:2651:1337)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.630Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.827Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.828Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.828Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n at VRH (/…

Code Example

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/stulentsev/.local/share/claude/versions/2.1.132 (expected in multi-process scenarios)\n    at I96 (/$bunfs/root/src/entrypoints/cli.js:2651:2257)\n    at ZRH (/$bunfs/root/src/entrypoints/cli.js:2651:1337)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.630Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.827Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.828Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.828Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/
RAW_BUFFERClick to expand / collapse

Bug Description Claude Code's output is very bad today. It lazily fabricates facts and events without grounding them in data. Just pulls them out of thin air.

Environment Info

  • Platform: darwin
  • Terminal: iTerm.app
  • Version: 2.1.132
  • Feedback ID: 673ca893-b6be-4af5-a1bf-10d5ca81e1fa

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/stulentsev/.local/share/claude/versions/2.1.132 (expected in multi-process scenarios)\n    at I96 (/$bunfs/root/src/entrypoints/cli.js:2651:2257)\n    at ZRH (/$bunfs/root/src/entrypoints/cli.js:2651:1337)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.630Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.649Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async N (/$bunfs/root/src/entrypoints/cli.js:6382:12661)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.763Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.827Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.828Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server playwright-test invalid: Missing environment variables: workspaceFolder\n    at VRH (/$bunfs/root/src/entrypoints/cli.js:2652:35738)\n    at async L (/$bunfs/root/src/entrypoints/cli.js:6382:11775)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-07T16:23:41.828Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server odin invalid: Missing environment variables: workspaceFolder\n    at VRH (/…

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