MCP server returns error -32601 (Method not found) when Claude Code tries to fetch tools

Bug Report

Version: @microsoft/workiq 0.2.8.13483 (latest)
Environment: Windows 11, Claude Code VS Code extension
MCP Configuration: Configured in ~/.claude/mcp.json

Issue

The WorkIQ MCP server fails to connect to Claude Code with the following error:

{
  "error": "Failed to fetch tools: MCP error -32601: Method not found",
  "timestamp": "2026-02-06T23:01:11.839Z",
  "sessionId": "1162f4a9-753f-4f09-978e-14fdbc748b96",
  "cwd": "C:\\Users\\nandab"
}
Configuration
~/.claude/mcp.json:


{
  "servers": {
    "workiq": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "@microsoft/workiq", "mcp"],
      "tools": ["**"]
    }
  }
}
Expected Behavior
WorkIQ MCP server should start successfully
Should respond to MCP protocol methods (e.g., tools/list)
Claude Code should be able to discover and use WorkIQ tools
Actual Behavior
MCP server starts but fails during tool discovery handshake
Returns JSON-RPC error -32601 (Method not found)
No WorkIQ tools are available in Claude Code
Additional Context
WorkIQ CLI works perfectly: npx -y @microsoft/workiq ask -q "test"
WorkIQ is authenticated and can query M365 data successfully via CLI
Other MCP servers (e.g., Kusto) work correctly in the same Claude Code environment
Error suggests the MCP server isn't implementing required protocol methods
Workaround
Currently using WorkIQ CLI directly via Node.js child_process instead of MCP server.

Request
Please investigate the MCP protocol implementation and ensure it correctly implements the required MCP methods for tool discovery.


``

Start with the npx -y @microsoft/workiq mcp entry point and reproduce the handshake using ~/.claude/mcp.json in Claude Code. Check the server's response to tools/list and related MCP protocol methods; done means Claude Code discovers and can use the WorkIQ tools without the -32601 error.