OpenArchFlow: Instructions file for Codex

AGENTS.md

OpenArchFlow AGENTS.md is an instructions file for Codex, OpenCode from dmux/OpenArchFlow. It costs 154 tokens per session, scanned A, a copy of civitai AGENTS.md, MIT.

A project instruction file for coding agents working on a specific, changed version of Next.js, a tool for building web applications. It tells the agent where to find the matching documentation and which generated file changes are expected.

In plain words
What is it for?
Use it to guide code changes in the dmux/OpenArchFlow project, especially when checking Next.js APIs, conventions, deprecations, and generated agent files.
Why use it?
It prevents an agent from relying on outdated knowledge or treating generated changes as accidental. This matters when the project uses a monorepo, where packages may be nested in separate folders.

Instructions file for CodexOpenCode

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

This is dmux/OpenArchFlow's own configuration. It tells Codex and OpenCode how to work on OpenArchFlow 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 OpenArchFlow configures →

Reuse

Borrowing it

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

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 OpenArchFlow AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/dmux/openarchflow/agents-md"><img src="https://agentmods.dev/badge/instructions/dmux/openarchflow/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 154 This file is loaded in full into every session.
When invoked 154 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 100% copy Near-identical to another mod 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 $0.00154 $0.00154
Opus 5.5 $0.00062 $0.00062
Sonnet 5.5 $0.00031 $0.00031
Haiku 4.5 $0.00015 $0.00015

Measured 1mo ago against content hash 63f2c50380ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

OpenArchFlow 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 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.

Origin

This is a copy

100% identical to civitai AGENTS.md — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

AGENTS.md · 10 lines

What it actually says

This is NOT the Next.js you know

This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in node_modules/next/dist/docs/ (resolved from this file's directory; in monorepos the next package may not be visible from the repo root) before writing any code. Heed deprecation notices.

This block is written and re-added by next dev — verify at node_modules/next/dist/server/lib/generate-agent-files.js. Removing it from a diff only re-creates the uncommitted change; committing it with your work keeps the tree clean.

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 First seen · 10 lines · 154 tokens per session scan A 63f2c50380ed

Subscribe to this mod's changes

OpenArchFlow AGENTS.md is an instructions file published in the GitHub repository dmux/OpenArchFlow (28 stars, last pushed yesterday), licensed MIT. It adds 154 tokens to every session, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to civitai AGENTS.md, differing in 2 lines, and is treated as a copy.

Related

OpenArchFlow AGENTS.md compared with instructions from other repositories

OpenArchFlow AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
OpenArchFlow AGENTS.mddmux/OpenArchFlowInstructions file28yesterdayMITA154Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode