What is gx-mcp-server GEMINI.md?

Project instructions for gx-mcp-server, a server that makes Great Expectations available through the Model Context Protocol (MCP). Great Expectations checks whether datasets match defined quality rules.

Use them when working on tools for datasets, expectation suites (collections of data-quality rules), or validation checkpoints (saved validation configurations).

They explain the server's purpose and the main data-quality concepts an agent needs before changing the code. This helps avoid misunderstanding how datasets, rule collections, and validation runs relate.

How davidf9999/gx-mcp-server configures Gemini CLI

Reuse

Borrowing it

Nothing to install: this file belongs to davidf9999/gx-mcp-server. 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/davidf9999/gx-mcp-server/dev/GEMINI.md

Clone the repo

git clone --depth 1 https://github.com/davidf9999/gx-mcp-server

Made for: Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/davidf9999/gx-mcp-server/gemini-md/github.svg)](https://agentmods.dev/instructions/davidf9999/gx-mcp-server/gemini-md)

Your own site

<a href="https://agentmods.dev/instructions/davidf9999/gx-mcp-server/gemini-md"><img src="https://agentmods.dev/badge/instructions/davidf9999/gx-mcp-server/gemini-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/davidf9999/gx-mcp-server/gemini-md"><img src="https://agentmods.dev/badge/instructions/davidf9999/gx-mcp-server/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 34 This file is loaded in full into every session.

When invoked 34 The same file — it is already loaded in full.

Security scan A 0 findings. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00034	$0.00034
Opus 5.5	$0.00014	$0.00014
Sonnet 5.5	$0.00007	$0.00007
Haiku 4.5	$0.00003	$0.00003

Measured 2mo ago against content hash 1dd3e6286fa0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gx-mcp-server GEMINI.md scanned grade A with 0 findings 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 2mo 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

GEMINI.md · 1 lines

What it actually says

This project is a server that exposes Great Expectations functionality through a Model Context Protocol (MCP). It provides tools for working with datasets, expectation suites, and validation checkpoints.

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.

2mo ago First seen · 1 lines · 34 tokens per session scan A 1dd3e6286fa0

Subscribe to this mod's changes

gx-mcp-server GEMINI.md is an instructions file published in the GitHub repository davidf9999/gx-mcp-server (4 stars, last pushed 10mo ago), licensed MIT. It adds 34 tokens to every session, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Analytics and metrics

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gx-mcp-server: Instructions file for Gemini CLI