tilwhen date engine for Windsurf

com.tilwhen/tilwhen

Deterministic date arithmetic with auditable receipts: business days, due dates, holidays.

client:Windsurf transport:streamable-http tools:9

Install tilwhen date engine in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "tilwhen": {
      "serverUrl": "https://mcp.tilwhen.com/mcp"
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs