nyxdoc: Instructions file for Codex

AGENTS.md

nyxdoc AGENTS.md is an instructions file for Codex, OpenCode from getnyxdoc/nyxdoc. It costs 334 tokens per session, scanned A, a copy of civitai AGENTS.md, MIT.

Project instructions for a specific, modified version of Next.js, a framework for building web applications. They tell coding agents to read the matching local documentation before changing code.

In plain words
What is it for?
Use them when working in the getnyxdoc/nyxdoc project, especially before writing code, checking APIs, following conventions, or handling deprecations.
Why use it?
They reduce mistakes caused by relying on familiar but outdated Next.js behavior. They also explain why a generated instruction block should remain in the project.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 nyxdoc AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/getnyxdoc/nyxdoc/agents-md"><img src="https://agentmods.dev/badge/instructions/getnyxdoc/nyxdoc/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 334 This file is loaded in full into every session.
When invoked 334 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 $0.00334 $0.00334
Opus 5.5 $0.00134 $0.00134
Sonnet 5.5 $0.00067 $0.00067
Haiku 4.5 $0.00033 $0.00033

Measured 14d ago against content hash b4ee7ec68bb7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nyxdoc 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 14d 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 — 9 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 · 17 lines

What it actually says

운영 배포까지 완료

  • 사용자 요청으로 코드를 수정하면 별도 재확인 없이 필요한 검증, 형상 반영, 정식 릴리스, 운영 배포, 실제 운영 동작 확인까지 완료한다.
  • 로컬 수정이나 테스트 통과만으로 작업을 끝내지 않는다. 사용자가 운영에서 수정 결과를 확인할 수 있어야 완료다.
  • 필요한 검증을 통과하면 바로 기존 정식 배포 절차를 진행한다. docs/testing-and-release-qualification.md의 릴리스 검증, 백업, 데이터 보존, 배포 후 확인을 생략하지 않는다.
  • 사용자가 명시적으로 배포를 제외하거나 중단한 경우에는 그 지시를 우선한다. 실제 차단 사유가 있으면 완료한 범위와 막힌 지점을 정확히 보고한다.

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. 14d ago Changed · +7 lines · +180 tokens per session b4ee7ec68bb7
  2. 2mo ago First seen · 10 lines · 154 tokens per session scan A 63f2c50380ed

Subscribe to this mod's changes

nyxdoc AGENTS.md is an instructions file published in the GitHub repository getnyxdoc/nyxdoc (0 stars, last pushed 14d ago), licensed MIT. It adds 334 tokens to every session, about $0.0013 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 9 lines, and is treated as a copy.

Related

nyxdoc AGENTS.md compared with instructions from other repositories

nyxdoc AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
nyxdoc AGENTS.mdgetnyxdoc/nyxdocInstructions file014d agoMITA334Codex, 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