claude-code - 💡(How to fix) Fix [Bug] Model performance degradation after updates: excessive iterations and livelock behavior [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 lAH (/$bunfs/root/src/entrypoints/cli.js:1526:34345)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:10:14.896Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at lAH (/$bunfs/root/src/entrypoints/cli.js:1526:34345)\n at async W (/$bunfs/root/src/entrypoints/cli.js:5820:10283)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:10:22.060Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at lAH (/$bunfs/root/src/entrypoints/cli.js:1526:34345)\n at async Z (/$bunfs/root/src/entrypoints/cli.js:5820:11053)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:10:22.060Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at lAH (/$bunfs/root/src/entrypoints/cli.js:1526:34345)\n at async Z (/$bunfs/root/src/entrypoints/cli.js:5820:11053)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:10:22.109Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at lAH (/$bunfs/root/src/entrypoints/cli.js:1526:34345)\n at async W (/$bunfs/root/src/entrypoints/cli.js:5820:10283)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:10:22.112Z"},{"error":"MaxFileReadTokenExceededError: File content (11164 tokens) exceeds maximum allowed tokens (10000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n at d$7 (/$bunfs/root/src/entrypoints/cli.js:4294:13161)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:11:28.110Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at lAH (/$bunfs/root/src/entrypoints/cli.js:1526:34345)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:16:21.312Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n at lAH (/$bunfs/root/src/entrypoints/cli.js:1526:34345)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:16:21.312Z"},{"error":"MaxFileReadTokenExceededError: File content (11164 tokens) exceeds maximum allowed tokens (10000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n at d$7 (/$bunfs/root/src/entrypoints/cli.js:4294:13161)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:19:04.926Z"},{"error":"MaxFileReadTokenExceededError: File content (22274 tokens) exceeds maximum allowed tokens (10000). Use offset and limit parameters to read specific portions of the file, or search for specific content instead of reading the whole file.\n at d$7 (/$bunfs/root/src/entrypoints/cli.js:4294:13161)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T11:19:05.543Z"},{"error":"Error: LSP server plugin:typescript-lsp:typescript failed to start: Executable not found in $PATH: "typescript-language-server"\n at start (/$bunfs/root/src/entrypoints/cli.js:2274:22349)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T12:18:57.893Z"},{"error":"Error: Executable not found in $PATH: "typescript-language-server"\n at spawn (unknown)\n at spawn (node:child_process:667:35)\n at spawn (node:child_process:14:39)\n at start (/$bunfs/root/src/entrypoints/cli.js:2274:20885)\n at w (/$bunfs/root/src/entrypoints/cli.js:2274:24869)\n at T (/$bunfs/root/src/entrypoints/cli.js:2274:29589)\n at w (/$bunfs/root/src/entrypoints/cli.js:2274:29926)\n at f (/$bunfs/root/src/entrypoints/cli.js:2274:30472)\n at call (/$bunfs/root/src/entrypoints/cli.js:2792:3897)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-08T12:18:57.899Z"},{"error":"Error: Failed to start …

TL;DR

Set the GITHUB_PERSONAL_ACCESS_TOKEN environment variable to resolve the mcp-config-invalid errors.

Guidance

1. Environment Variable Setup: Ensure the GITHUB_PERSONAL_ACCESS_TOKEN environment variable is set correctly in your development environment.
2. Executable Path Verification: Verify that typescript-language-server is installed and its executable is in the system's PATH.
3. File Read Token Limit: Consider using offset and limit parameters when reading files to avoid exceeding the maximum allowed tokens (10000).
4. Error Monitoring: Continuously monitor the errors to identify any patterns or recurring issues after applying the fixes.
5. Dependency Installation: Ensure all required dependencies, including typescript-language-server, are properly installed and up-to-date.

Example

No specific code example is provided due to the nature of the issue, but setting an environment variable in a Unix-like system (such as darwin) can be done using the command export GITHUB_PERSONAL_ACCESS_TOKEN=your_token_value before running your application.

Notes

The provided error logs indicate multiple issues, including missing environment variables, file read token limits, and executable not found errors. Addressing these individually should help in resolving the overall performance and functionality issues described.

Recommendation

Apply workaround by setting the required environment variables and ensuring dependencies are correctly installed and configured. This should help mitigate the immediate errors and improve the application's performance.