claude-code - 💡(How to fix) Fix [Bug] Claude Code stops executing plan midway without completing all planned tasks [1 comments, 2 participants]

[{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at dDH (/$bunfs/root/src/entrypoints/cli.js:1558:33935)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T16:53:24.021Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at dDH (/$bunfs/root/src/entrypoints/cli.js:1558:33935)\n at async W (/$bunfs/root/src/entrypoints/cli.js:6005:10596)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T16:53:24.816Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at dDH (/$bunfs/root/src/entrypoints/cli.js:1558:33935)\n at async v (/$bunfs/root/src/entrypoints/cli.js:6005:11366)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T16:53:24.817Z"},{"error":"AxiosError: Request failed with status code 404\n at oU (/$bunfs/root/src/entrypoints/cli.js:108:1194)\n at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:113:12750)\n at emit (node:events:92:22)\n at endReadableNT (internal:streams/readable:865:50)\n at processTicksAndRejections (native:7:39)\n at request (/$bunfs/root/src/entrypoints/cli.js:115:2467)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T17:14:11.447Z"},{"error":"Error: LSP server plugin:pyright-lsp:pyright failed to start: Executable not found in $PATH: "pyright-langserver"\n at start (/$bunfs/root/src/entrypoints/cli.js:1636:22340)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T17:31:15.639Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:1636:20876)\n at Y (/$bunfs/root/src/entrypoints/cli.js:1636:24859)\n at f (/$bunfs/root/src/entrypoints/cli.js:1636:29931)\n at Y (/$bunfs/root/src/entrypoints/cli.js:1636:30268)\n at D (/$bunfs/root/src/entrypoints/cli.js:1636:30814)\n at call (/$bunfs/root/src/entrypoints/cli.js:2220:1377)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T17:31:15.639Z"},{"error":"Error: Failed to start LSP server for file /home/akos/src/algotrading/src/algotrading-288-vwap-strategies-multi-asset/data_management/get_data_from_massive.py: Executable not found in $PATH: "pyright-langserver"\n at f (/$bunfs/root/src/entrypoints/cli.js:1636:29957)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T17:31:15.639Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:1636:20876)\n at Y (/$bunfs/root/src/entrypoints/cli.js:1636:24859)\n at f (/$bunfs/root/src/entrypoints/cli.js:1636:29931)\n at Y (/$bunfs/root/src/entrypoints/cli.js:1636:30268)\n at D (/$bunfs/root/src/entrypoints/cli.js:1636:30814)\n at call (/$bunfs/root/src/entrypoints/cli.js:2220:1377)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T17:31:15.639Z"},{"error":"Error: LSP server plugin:pyright-lsp:pyright failed to start: Executable not found in $PATH: "pyright-langserver"\n at start (/$bunfs/root/src/entrypoints/cli.js:1636:22340)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-12T17:31:16.669Z"},{"error":"Error: Executable not found in $PATH: "pyright-langserver"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:1636:20876)\n at Y (/$bunfs/root/src/entrypoints/cli.js:1636:24859)\n at f (/$bunfs/root/src/entrypoints/cli.js:1636:29931)\n at Y (/$bunfs/root/src/entrypoints/cli.js:1636:30268)\n at D (/$bunfs/root/src/entrypoints/cli.js:1636:30814)\n at call (/$bunfs/root/src/entrypoints/cli.js:2220…

TL;DR

Set the GITHUB_PERSONAL_ACCESS_TOKEN environment variable to resolve the MCP server error.

Guidance

• The error messages indicate that the GITHUB_PERSONAL_ACCESS_TOKEN environment variable is missing, which is required for the MCP server to function correctly.
• Verify that the pyright-langserver executable is installed and available in the system's PATH, as multiple errors suggest it is not found.
• Check the system's environment variables to ensure that GITHUB_PERSONAL_ACCESS_TOKEN is set and exported.
• Consider reinstalling or updating the pyright-langserver package to ensure it is properly installed and configured.

Example

No code snippet is provided as the issue seems to be related to environment variable configuration and executable availability.

Notes

The provided error messages are truncated, which might limit the ability to provide a comprehensive solution. However, addressing the missing GITHUB_PERSONAL_ACCESS_TOKEN and ensuring the pyright-langserver executable is properly installed and configured should resolve some of the reported issues.

Recommendation

Apply a workaround by setting the GITHUB_PERSONAL_ACCESS_TOKEN environment variable and verifying the installation and configuration of the pyright-langserver executable. This should help mitigate the MCP server errors and potentially resolve issues related to the pyright-langserver not being found.