What is next-stage GEMINI.md?

Project instructions for developing a Next.js website, a web application framework, with the Bun JavaScript tool. They document development, production, linting, formatting, testing, dependency, and AI-editor rule commands.

Use them to start or build the site, run unit and browser tests, check code quality, manage dependencies, and generate rules for supported AI coding editors.

They give a coding agent the repository's expected commands and checks, reducing guesswork about how to run, test, format, and maintain the project.

How Kazuki-tam/next-stage configures Gemini CLI

Reuse

Borrowing it

Nothing to install: this file belongs to Kazuki-tam/next-stage. 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/Kazuki-tam/next-stage/main/GEMINI.md

Clone the repo

git clone --depth 1 https://github.com/Kazuki-tam/next-stage

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/kazuki-tam/next-stage/gemini-md/github.svg)](https://agentmods.dev/instructions/kazuki-tam/next-stage/gemini-md)

Your own site

<a href="https://agentmods.dev/instructions/kazuki-tam/next-stage/gemini-md"><img src="https://agentmods.dev/badge/instructions/kazuki-tam/next-stage/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/kazuki-tam/next-stage/gemini-md"><img src="https://agentmods.dev/badge/instructions/kazuki-tam/next-stage/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,545 This file is loaded in full into every session.

When invoked 1,545 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 91% 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.

Model	Per session	Once invoked
Fable 5.1	$0.01545	$0.01545
Opus 5	$0.00772	$0.00772
Sonnet 5	$0.00309	$0.00309
Haiku 4.5	$0.00154	$0.00154

Measured 9d ago against content hash 60e78555d07f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

next-stage 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 9d 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

91% identical to next-stage CLAUDE.md — 10 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.

GEMINI.md · 167 lines

How it starts

The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GEMINI.md

This file provides guidance to Google Gemini CLI when working with code in this repository.

Commands

Development

bun dev          # Start development server (Turbopack is default in Next.js 16)
bun build        # Build for production
bun start        # Start production server

Code Quality

bun run lint     # Run all linters (Markuplint + Biome)
bun run check    # Run Biome check with auto-fixes + Markuplint
bun run format   # Format code with Biome

Testing

bun run test:unit       # Run unit tests
bun run test:e2e        # Run Playwright E2E tests
bun run test:e2e:ui     # Run E2E tests with UI
bun run test:codegen    # Generate E2E test code

AI Rules Generation

bun run rules           # Generate rules for all AI editors
bun run rules:cursor    # Generate Cursor-specific rules
bun run rules:windsurf  # Generate Windsurf-specific rules
bun run rules:copilot   # Generate GitHub Copilot instructions
bun run rules:kiro      # Generate Kiro-specific rules

Dependency Management

bun install             # Install dependencies
bun run upgradeps       # Upgrade dependencies interactively

Architecture Overview

This is a modern Next.js 16.3.0 starter template designed for AI-driven development with the following architecture:

Core Stack

Package Manager: Bun 1.3.14
Framework: Next.js 16.3.0 with App Router
Runtime: React 19.2.8, React DOM 19.2.8
Language: TypeScript 5.9.3 with strict mode
API: Hono 4.13.0 with @hono/zod-validator 0.7.6
UI: shadcn/ui with Radix UI primitives
Styling: Tailwind CSS v4.3.3
Forms: React Hook Form 7.84.0 + Zod 4.4.3 validation
Icons: lucide-react 1.28.0
Quality: Biome 2.3.8 (linting/formatting) + Markuplint 4.18.3
Testing: Playwright 1.61.1 + Bun test runner

Key Architectural Patterns

Server-First Development
- Default to React Server Components (RSC)
- Minimize 'use client' usage
- Wrap client components in Suspense

Read the full file on GitHub · 167 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.

9d ago First seen · 167 lines · 1,545 tokens per session scan A 60e78555d07f

Subscribe to this mod's changes

next-stage GEMINI.md is an instructions file published in the GitHub repository Kazuki-tam/next-stage (12 stars, last pushed 1mo ago), licensed MIT. It adds 1,545 tokens to every session, about $0.0077 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to next-stage CLAUDE.md, differing in 10 lines, and is treated as a copy.

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Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

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next-stage: Instructions file for Gemini CLI