Update 2025-07-08

Gemini CLI supports HTTP-based MCP server integration

So, it’s possible to replace the .gemini/settings.json included in the original post with:

{
  "theme": "Default",
  "mcpServers": {
    "ackal-mcp-server": {
      "httpUrl": "http://localhost:7777/mcp",
      "timeout": 5000
    },
    "prometheus-mcp-server": {
      "httpUrl": "https://prometheus.{tailnet}/mcp",
      "timeout": 5000
    }
  },
  "selectedAuthType": "gemini-api-key"
}

This solution permits the addition of headers too for e.g. including Authorization

Original

Okay, so not “Gemini Code Assist” but sufficiently similar that I think it warrants the “3/3” appellation.