magpie: Instructions file for Gemini CLI

GEMINI.md

magpie GEMINI.md is an instructions file for Gemini CLI from apache/magpie. It costs 387 tokens per session, scanned A, original, Apache-2.0.

An instruction file for Apache Magpie, a Gemini CLI extension. Gemini CLI is a command-line tool for using Gemini, and this file explains how Magpie should detect extension updates and prompt for reconciliation.

In plain words
What is it for?
Use it in projects that adopt Apache Magpie. After an update, it tells the user to run the guided /magpie-setup upgrade command and records the extension version.
Why use it?
It gives the extension a consistent update-checking process even though Gemini CLI has no built-in plugin update hook. It also prevents unattended changes to a project.

Instructions file for Gemini CLI ✓ vendor

Written for Gemini CLI: the file is GEMINI.md. Also seen: mentions Claude Code; mentions AGENTS.md; mentions Gemini CLI.

This is apache/magpie's own configuration. It tells Gemini CLI how to work on magpie 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 magpie configures →

About the project

Apache Magpie is a framework of agent-assisted workflows for maintaining Apache software projects, including issue triage, pull-request review, contributor mentoring, and security-report handling. Apache maintainers and developers use it to delegate repetitive project work to coding agents while retaining human review. Its catalogue entries are the skills, instructions, plugin, and settings that implement these workflows.

apache/magpie · 118 stars · on GitHub · magpie.apache.org

Reuse

Borrowing it

Nothing to install: this file belongs to apache/magpie. 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/apache/magpie/main/GEMINI.md
Clone the repo
git clone --depth 1 https://github.com/apache/magpie

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.

agentmods badge for magpie GEMINI.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/apache/magpie/gemini-md/github.svg)](https://agentmods.dev/instructions/apache/magpie/gemini-md)
Your own site
<a href="https://agentmods.dev/instructions/apache/magpie/gemini-md"><img src="https://agentmods.dev/badge/instructions/apache/magpie/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.

agentmods 80×15 button for magpie GEMINI.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/apache/magpie/gemini-md"><img src="https://agentmods.dev/badge/instructions/apache/magpie/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 387 This file is loaded in full into every session.
When invoked 387 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00387 $0.00387
Opus 5.5 $0.00155 $0.00155
Sonnet 5.5 $0.00077 $0.00077
Haiku 4.5 $0.00039 $0.00039

Measured 1mo ago against content hash 3790f044a1f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

magpie 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 1mo 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 · 43 lines

What it actually says

Table of Contents generated with DocToc

Apache Magpie — Gemini CLI extension context

Read the shared repository instructions:

@AGENTS.md

This context ships with the Apache Magpie Gemini CLI extension. Gemini has no plugin update/lifecycle hook (unlike Claude Code), so this file is how the extension prompts you to reconcile after an update.

Upgrade prompt

The Magpie extension declares its version in gemini-extension.json. At the start of a session, compare that version against the value you last recorded in magpie-plugin-version under the extension's state directory (create the file if it does not exist):

  • If the version has changed since you last recorded it — the marketplace updated the extension — tell the user, once and non-intrusively:

    Apache Magpie was updated to <version>. If this repo adopts Magpie, run /magpie-setup upgrade to reconcile the snapshot, agentic overrides, and drift.

    Then record the new version.

  • If the version is unchanged, say nothing.

Never run the upgrade yourself: /magpie-setup upgrade is a guided, user-confirmed action, and Magpie never mutates an adopter repo unattended.

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. 1mo ago Changed · +4 lines · +11 tokens per session 3790f044a1f0
  2. 1mo ago First seen · 39 lines · 376 tokens per session scan A 23c819a072bb

Subscribe to this mod's changes

magpie GEMINI.md is an instructions file published in the GitHub repository apache/magpie (118 stars, last pushed today), licensed Apache-2.0. It adds 387 tokens to every session, about $0.0015 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 2026-08-30.

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