claude-code - 💡(How to fix) Fix [Feature Request] Add system prompt customization for model behavior tuning [1 comments, 2 participants]

[{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server greptile invalid: Missing environment variables: GREPTILE_API_KEY\n at TWH (/$bunfs/root/src/entrypoints/cli.js:2736:30496)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T21:14:37.617Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server greptile invalid: Missing environment variables: GREPTILE_API_KEY\n at TWH (/$bunfs/root/src/entrypoints/cli.js:2736:30496)\n at async R (/$bunfs/root/src/entrypoints/cli.js:6300:11019)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T21:14:38.109Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server greptile invalid: Missing environment variables: GREPTILE_API_KEY\n at TWH (/$bunfs/root/src/entrypoints/cli.js:2736:30496)\n at async L (/$bunfs/root/src/entrypoints/cli.js:6300:11825)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T21:14:38.110Z"},{"error":"Error: Request was aborted.\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T21:22:07.405Z"},{"error":"RangeError: path should be a path.relative()d string, but got ".."\n at p31 (/$bunfs/root/src/entrypoints/cli.js:445:14017)\n at SHH (/$bunfs/root/src/entrypoints/cli.js:445:14192)\n at test (/$bunfs/root/src/entrypoints/cli.js:445:14734)\n at MJ (/$bunfs/root/src/entrypoints/cli.js:8665:8508)\n at M7 (/$bunfs/root/src/entrypoints/cli.js:819:25028)\n at P7_ (/$bunfs/root/src/entrypoints/cli.js:819:27823)\n at ux5 (/$bunfs/root/src/entrypoints/cli.js:4985:353)\n at Kz_ (/$bunfs/root/src/entrypoints/cli.js:4985:5613)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T22:52:17.553Z"},{"error":"RangeError: path should be a path.relative()d string, but got ".."\n at p31 (/$bunfs/root/src/entrypoints/cli.js:445:14017)\n at SHH (/$bunfs/root/src/entrypoints/cli.js:445:14192)\n at test (/$bunfs/root/src/entrypoints/cli.js:445:14734)\n at MJ (/$bunfs/root/src/entrypoints/cli.js:8665:8508)\n at M7 (/$bunfs/root/src/entrypoints/cli.js:819:25028)\n at P7_ (/$bunfs/root/src/entrypoints/cli.js:819:27823)\n at ux5 (/$bunfs/root/src/entrypoints/cli.js:4985:353)\n at Kz_ (/$bunfs/root/src/entrypoints/cli.js:4985:5613)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T22:52:22.737Z"},{"error":"Error: Stream idle timeout - partial response received\n at V$K (/$bunfs/root/src/entrypoints/cli.js:8838:12947)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-25T00:46:16.183Z"},{"error":"MaxFileReadTokenExceededError: File content (25988 tokens) exceeds maximum allowed tokens (25000). 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 qC7 (/$bunfs/root/src/entrypoints/cli.js:4789:12701)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-25T07:32:54.145Z"},{"error":"RangeError: path should be a path.relative()d string, but got ".."\n at p31 (/$bunfs/root/src/entrypoints/cli.js:445:14017)\n at SHH (/$bunfs/root/src/entrypoints/cli.js:445:14192)\n at test (/$bunfs/root/src/entrypoints/cli.js:445:14734)\n at MJ (/$bunfs/root/src/entrypoints/cli.js:8665:8508)\n at M7 (/$bunfs/root/src/entrypoints/cli.js:819:25028)\n at P7_ (/$bunfs/root/src/entrypoints/cli.js:819:27823)\n at ya1 (/$bunfs/root/src/entrypoints/cli.js:2627:2480)\n at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:2627:2977)\n at Ca1 (/$bunfs/root/src/entrypoints/cli.js:2627:4357)\n at to_ (/$bunfs/root/src/entrypoints/cli.js:2627:6434)","timestamp":"2026-04-25T10:49:11.480Z"},{"error":"RangeError: path should be a path.relative()d string, but got ".."\n at p31 (/$bunfs/root/src/entrypoints/cli.js:445:14017)\n at SHH (/$bunfs/root/src/entrypoints/cli.js:445:14192)\n at test (/$bunfs/root/src/entrypoints/cli.js:445:14734)\n at MJ (/$bunfs/root/src/entrypoints/cli.js:8665:8508)\n at M7 (/$bunfs/root/src/entrypoints/cli.js:819:25028)\n at P7_ (/$bunfs/root/src/entrypoints/cli.js:819:27823)\n at ya1 (/$bunfs/root/src/entrypoints/cli.js:2627:2480)\n at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:2627:2977)\n at Ca1 (/$bunfs/root/src/entrypoints/cli.js:2627:4357)\n…

TL;DR

Set the GREPTILE_API_KEY environment variable to resolve the mcp-config-invalid error.

Guidance

• The errors indicate a missing GREPTILE_API_KEY environment variable, which is required for the MCP server to function correctly.
• Verify that the GREPTILE_API_KEY variable is set in your environment before running the application.
• Check the documentation for the MCP server to ensure you have the correct API key and configuration.
• If you are still experiencing issues, try checking the file paths and relative paths in your application to resolve the RangeError issues.

Example

No code example is provided as the issue is related to environment variable configuration.

Notes

The provided error logs are truncated, which may limit the ability to identify all potential issues. However, setting the GREPTILE_API_KEY environment variable should resolve the primary error.

Recommendation

Apply the workaround by setting the GREPTILE_API_KEY environment variable, as this is the most direct solution to the primary error reported.