What is chat-io GEMINI.md?

A project-specific instruction file for the Gemini command-line coding tool. It sets rules for formatting, Git branches, environment examples, and other repository instructions.

Use it to guide Gemini while working in the chat-io repository, especially when changing code, environment variables, or commits.

It gives the coding tool consistent project rules, such as not committing directly to the main branch and formatting before completion.

How FleetAdmiralJakob/chat-io configures Gemini CLI

Reuse

Borrowing it

Nothing to install: this file belongs to FleetAdmiralJakob/chat-io. 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/FleetAdmiralJakob/chat-io/main/GEMINI.md

Clone the repo

git clone --depth 1 https://github.com/FleetAdmiralJakob/chat-io

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/fleetadmiraljakob/chat-io/gemini-md/github.svg)](https://agentmods.dev/instructions/fleetadmiraljakob/chat-io/gemini-md)

Your own site

<a href="https://agentmods.dev/instructions/fleetadmiraljakob/chat-io/gemini-md"><img src="https://agentmods.dev/badge/instructions/fleetadmiraljakob/chat-io/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/fleetadmiraljakob/chat-io/gemini-md"><img src="https://agentmods.dev/badge/instructions/fleetadmiraljakob/chat-io/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 129 This file is loaded in full into every session.

When invoked 129 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	$0.00129	$0.00129
Opus 5.5	$0.00052	$0.00052
Sonnet 5.5	$0.00026	$0.00026
Haiku 4.5	$0.00013	$0.00013

Measured 2mo ago against content hash 26ad2dac5de5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

chat-io 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 · 15 lines

What it actually says

Main Instructions

@./.github/copilot-instructions.md

User Preferences

ALWAYS format everything before saying a task is completed. Run pnpm format:write (or equivalent) as the final step before committing.
ALWAYS make a new branch for new changes from main (trunk-based development) BEFORE committing anything.
DO NOT commit directly to main if not directly told or approved to do so.
ALWAYS update .env.example when updating environment variables.

Additional Instructions

@./.github/instructions/convex.instructions.md

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 · 15 lines · 129 tokens per session scan A 26ad2dac5de5

Subscribe to this mod's changes

chat-io GEMINI.md is an instructions file published in the GitHub repository FleetAdmiralJakob/chat-io (10 stars, last pushed yesterday), licensed MIT. It adds 129 tokens to every session, about $0.0005 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 2026-09-04.

Git and workflow TypeScript Writing and docs chat convex messaging messaging-app next

chat-io GEMINI.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
chat-io GEMINI.mdFleetAdmiralJakob/chat-io	Instructions file	10	yesterday	MIT	A	129	Gemini CLI
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

chat-io: Instructions file for Gemini CLI