vix: Instructions file for Codex

AGENTS.md

vix AGENTS.md is an instructions file for Codex, OpenCode from get-vix/vix. It costs 7,774 tokens per session, scanned A, original, AGPL-3.0.

Project instructions for the get-vix/vix codebase. They describe the project, its architecture, agent guidance, control channel, and development commands.

In plain words
What is it for?
Use them when making or reviewing changes in get-vix/vix. They help explain where things belong, how the project is controlled, and how to develop it.
Why use it?
An agent working in an unfamiliar repository can otherwise miss local rules or use the wrong commands. These instructions provide the repository-specific context needed for changes and troubleshooting.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is get-vix/vix's own configuration. It tells Codex and OpenCode how to work on vix 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 vix configures →

Reuse

Borrowing it

Nothing to install: this file belongs to get-vix/vix. 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/get-vix/vix/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/get-vix/vix

Made for: Codex, OpenCode.

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 vix AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/get-vix/vix/agents-md"><img src="https://agentmods.dev/badge/instructions/get-vix/vix/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 7,774 This file is loaded in full into every session.
When invoked 7,774 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 unknown 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 $0.07774 $0.07774
Opus 5.5 $0.03110 $0.03110
Sonnet 5.5 $0.01555 $0.01555
Haiku 4.5 $0.00777 $0.00777

Measured 2mo ago against content hash 048a8c440acd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vix AGENTS.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.

AGENTS.md · 523 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 2mo ago First seen · 523 lines · 7,774 tokens per session scan A 048a8c440acd

Subscribe to this mod's changes

vix AGENTS.md is an instructions file published in the GitHub repository get-vix/vix (284 stars, last pushed 1mo ago), licensed AGPL-3.0. It adds 7,774 tokens to every session, about $0.0311 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.

Related

vix AGENTS.md compared with instructions from other repositories

vix AGENTS.md next to 6 instructions from other repositories
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vix AGENTS.mdget-vix/vixInstructions file2841mo agoAGPL-3.0A7,774Codex, OpenCode
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langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k2d agoMITA4,313Codex, OpenCode