Docs / Set up with your agent

LLMGRAPH for Gemini CLI

Add the LLMGRAPH MCP server to Gemini CLI on Windows: the config file, the cmd /c npx form, and how to check it connected.

On this page1 · Add the server to Gemini CLI 2 · Check that it connected 3 · Sign in once 4 · Make sure Gemini CLI uses it 5 · The five questions Other agents

Add LLMGRAPH to Gemini CLI with one entry in .gemini/settings.json; if Gemini CLI cannot start npx on Windows, use cmd /c npx -y llmgraph-mcp. This guide follows Gemini CLI's own docs and is not yet tested by us.

1Add the server to Gemini CLI

Add from the vendor's docs, not yet tested by us ~/.gemini/settings.json (user) or .gemini/settings.json (project)

json

{
  "mcpServers": {
    "llmgraph": {
      "command": "npx",
      "args": [
        "-y",
        "llmgraph-mcp"
      ]
    }
  }
}

gemini mcp add exists (usage: gemini mcp add [options] <name> <commandOrUrl> [args...]); no command form is given here, so use the file entry below.

Gemini CLI's own docs do not mention a cmd /c wrapper on Windows. If it cannot start npx, use cmd /c npx -y llmgraph-mcp.

2Check that it connected

Check from the vendor's docs, not yet tested by us (your agent lists them as tools)

Type /mcp inside Gemini CLI: it lists configured MCP servers and tools (list is the default action).

The first time your agent asks a question, LLMGRAPH answers with a sign-in link and a 6-character code. In a terminal you can run this instead:

$npx -y llmgraph-mcp login

The link works for 10 minutes. Open the full link, including everything after the #, sign in with Google, compare the code on the page with the one your agent shows, and approve this device. Approving your first device starts your 7-day trial. The full steps are in Set up with your agent.

4Make sure Gemini CLI uses it

Adding a server doesn't make an agent use it.

Add a line to your agent's instructions file, GEMINI.md:

GEMINI.md

Before changing code, ask the llmgraph MCP tools who_calls and what_breaks_if_changed; after editing, run check_my_changes; read each answer's label and its lines about what it cannot see.

We can't promise that an agent asks on its own. Every answer starts with llmgraph · : look for it where Gemini CLI shows what it asked.

5The five questions

Question	What it answers
who_calls	Every place that calls this function, plus calls we can't see.
what_breaks_if_changed	Everything that depends on this, directly or indirectly, and what we can't see.
check_my_changes	After editing: callers you didn't update, and anything we can't see.
what_is_unknown	Where our view is blind (dynamic calls, unknown types, unreadable files) and why.
explain	Why we said this: the evidence behind one answer line.

Other agents

LLMGRAPH for Claude Code: MCP setup on Windows.
LLMGRAPH for Cursor: MCP setup on Windows.
LLMGRAPH for Codex: MCP setup on Windows.
LLMGRAPH for Antigravity: MCP setup on Windows.
LLMGRAPH for OpenCode: MCP setup on Windows.
LLMGRAPH for Windsurf: MCP setup on Windows.

Set up with your agentEvery agent on one page, plus the sign-in steps and what to do when something goes wrong.The MCP serverWhat the server answers and what it needs.Questions and answersShort answers to common questions.

For agentsthis page as Markdown/docs/agents/gemini-cli.mdllms.txt