What is nextarter-tailwind AGENTS.md?

A development guide for a Next.js website using Tailwind CSS and Biome. It tells agents where page content and shared layout code belong, and requires reading the installed Next.js documentation before making changes.

Use it when changing pages, shared layouts, routing, styling, or tooling in the Next.js project.

It prevents page logic from being placed in the routing shell and avoids using outdated Next.js knowledge. It also keeps package-manager, styling, and linting choices consistent.

How agustinusnathaniel/nextarter-tailwind configures Codex and OpenCod

Reuse

Borrowing it

Nothing to install: this file belongs to agustinusnathaniel/nextarter-tailwind. 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/agustinusnathaniel/nextarter-tailwind/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/agustinusnathaniel/nextarter-tailwind

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/agustinusnathaniel/nextarter-tailwind/agents-md/github.svg)](https://agentmods.dev/instructions/agustinusnathaniel/nextarter-tailwind/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/agustinusnathaniel/nextarter-tailwind/agents-md"><img src="https://agentmods.dev/badge/instructions/agustinusnathaniel/nextarter-tailwind/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/agustinusnathaniel/nextarter-tailwind/agents-md"><img src="https://agentmods.dev/badge/instructions/agustinusnathaniel/nextarter-tailwind/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,839 This file is loaded in full into every session.

When invoked 1,839 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	$0.01839	$0.01839
Opus 5.5	$0.00736	$0.00736
Sonnet 5.5	$0.00368	$0.00368
Haiku 4.5	$0.00184	$0.00184

Measured 2mo ago against content hash bd64d4147aa3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nextarter-tailwind 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 · 189 lines

How it starts

The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Next.js: ALWAYS read docs before coding

Before any Next.js work, find and read the relevant doc in node_modules/next/dist/docs/. Your training data is outdated — the docs are the source of truth.

AI Agent Guidance: nextarter-tailwind

This file provides context and instructions for AI agents (Cursor, Antigravity, Zed, Windsurf) to effectively navigate and modify this repository.

1. Mental Model for Agents

Implementation Delegation

The most important pattern to understand is that src/app is just a shell.

To modify a page's content, look in src/lib/pages/[page-name].
To modify the site-wide layout, look in src/lib/layout.
Do NOT add heavy logic or massive JSX blocks directly into src/app.

Tooling Strategy

Linter: We use Biome. Do not suggest adding ESLint or Prettier config.
Package Manager: pnpm. Use pnpm for all commands.
Styles: Tailwind CSS v4. Use standard utility classes.

2. Module Blueprint

Directory	Content Type	Change Frequency	Risk Level
`src/app`	Routing/Next.js glue	Low	High (Affects routing)
`src/lib/pages`	Feature implementation	High	Low
`src/lib/layout`	Shared UI shell	Medium	Medium
`src/lib/components`	Atomic components	Medium	Low
`src/lib/styles`	Design System/Global CSS	Low	High

3. Recommended Prompts for LLMs

Adding a Page: "I want to add a new page /about. Create a new directory src/lib/pages/about, implement the component there, and then create src/app/about/page.tsx that exports it."
Adding a Shared Component: "Create a new atomic component Button in src/lib/components/button.tsx. Follow the kebab-case naming convention and use named exports."
Refactoring Styles: "Review the Tailwind classes in src/lib/pages/home/index.tsx and suggest optimizations or consistency improvements based on the existing design tokens in globals.css."

Read the full file on GitHub · 189 lines

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 · 189 lines · 1,839 tokens per session scan A bd64d4147aa3

Subscribe to this mod's changes

nextarter-tailwind AGENTS.md is an instructions file published in the GitHub repository agustinusnathaniel/nextarter-tailwind (124 stars, last pushed 1mo ago), licensed MIT. It adds 1,839 tokens to every session, about $0.0074 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.

CSS and styling Frontend TypeScript boilerplate boilerplate-template nextjs pwa template

nextarter-tailwind AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
nextarter-tailwind AGENTS.mdagustinusnathaniel/nextarter-tailwind	Instructions file	124	1mo ago	MIT	A	1,839	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
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

nextarter-tailwind: Instructions file for Codex