maestro-mcp: Instructions file for Gemini CLI

GEMINI.md

maestro-mcp GEMINI.md is an instructions file for Gemini CLI from rmstxrx/maestro-mcp. It costs 1,260 tokens per session, scanned A, original, Apache-2.0.

Instructions for using Maestro MCP from Gemini CLI. Maestro is a tool that checks and controls a group of computers and can assign work to AI agents.

In plain words
What is it for?
Use them to check computer-fleet status, run commands on remote hosts, and start Maestro workflows from interactive or headless Gemini sessions.
Why use it?
They explain how to register the tool and use it inside a Gemini chat, avoiding the mistaken expectation that MCP tools are regular command-line commands.

Instructions file for Gemini CLI

Written for Gemini CLI: the file is GEMINI.md. Also seen: mentions Codex; mentions Gemini CLI.

This is rmstxrx/maestro-mcp's own configuration. It tells Gemini CLI how to work on maestro-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything maestro-mcp configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/user/Development/maestro-mcp.

Reuse

Borrowing it

Nothing to install: this file belongs to rmstxrx/maestro-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/rmstxrx/maestro-mcp/main/GEMINI.md
Clone the repo
git clone --depth 1 https://github.com/rmstxrx/maestro-mcp

Made for: Gemini CLI.

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Per session 1,260 This file is loaded in full into every session.
When invoked 1,260 The same file — it is already loaded in full.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.01260 $0.01260
Opus 5 $0.00630 $0.00630
Sonnet 5 $0.00252 $0.00252
Haiku 4.5 $0.00126 $0.00126

Measured 6d ago against content hash 8d91ce562122, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

maestro-mcp GEMINI.md scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

HTTP_CODE=\$(curl -s -o /tmp/result.json -w '%{http_code}' -H 'Authorization: Bearer \$RELAY_KEY' 'https://maestro.yourdomain.dev/tasks/TASK_ID/result')
GEMINI.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Maestro MCP — Gemini CLI Guide

Maestro integrates with Gemini CLI to provide fleet management and agent orchestration from within a Gemini chat session.


Setup

1. Register Maestro as an MCP server

gemini mcp add maestro \
  /path/to/maestro-mcp/.venv/bin/python \
  /path/to/maestro-mcp/server.py \
  --transport stdio

Verify it's registered:

gemini mcp list

Alternatively, the repo ships a .gemini/settings.json that registers Maestro automatically when Gemini CLI is run from the repo directory. Check the path inside it matches your local install.

2. Use Maestro tools from a session

MCP tools are not CLI subcommands — they are only accessible from within a Gemini chat session (interactive or headless). There is no gemini mcp call syntax.

Interactive session:

gemini
# Then in the session:
# > use maestro to check fleet status
# > run `nvidia-smi` on win-server via maestro

Headless (non-interactive):

gemini -p "Use maestro to check fleet status and report which hosts are down."

Core Fleet Workflows

All examples below are headless. The same prompts work interactively.

Check fleet status

gemini -p "Call the maestro status tool and summarise the result."

Execute a command on a host

gemini -p "Use maestro exec to run 'nvidia-smi' on host win-server and show the output."

Read a file (surgical)

gemini -p "Use maestro read to get the last 50 lines of /var/log/syslog on gpu-server."

Transfer a file

gemini -p "Use maestro transfer to upload ./src/main.py to ~/workspace/main.py on macbook."

Discover SSH hosts

gemini -p "Use maestro list_ssh_hosts to show available SSH hosts and which are already in the fleet."

Reconnect a host

gemini -p "Use maestro reconnect_host to reset the SSH connection to win-server."

Agent Orchestra

Maestro can dispatch Gemini CLI tasks as async background processes via the gemini tool. This is Gemini dispatching itself — useful for long-running agentic tasks you want to run in the background while the orchestrating session stays responsive.

Read the full file on GitHub · 170 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 170 lines · 1,260 tokens per session scan A 8d91ce562122

Subscribe to this mod's changes

maestro-mcp GEMINI.md is an instructions file published in the GitHub repository rmstxrx/maestro-mcp (1 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 1,260 tokens to every session, about $0.0063 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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