React-Vite-Tanstack-Starter-Template: Instructions file for Codex

AGENTS.md

React-Vite-Tanstack-Starter-Template AGENTS.md is an instructions file for Codex, OpenCode from whereissam/React-Vite-Tanstack-Starter-Template. It costs 976 tokens per session, scanned A, original, MIT.

A project instruction file for a web application built with React, TypeScript, Vite, TanStack tools, Tailwind CSS, and related testing and code-quality tools. It records the project structure and required commands.

In plain words
What is it for?
Starting the development server, building and type-checking the app, running lint and tests, formatting files, and following its project conventions.
Why use it?
It tells AI coding tools which technologies and commands the project uses, reducing incompatible edits and incorrect package-manager choices.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is whereissam/React-Vite-Tanstack-Starter-Template's own configuration. It tells Codex and OpenCode how to work on React-Vite-Tanstack-Starter-Template 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 React-Vite-Tanstack-Starter-Template configures →

Reuse

Borrowing it

Nothing to install: this file belongs to whereissam/React-Vite-Tanstack-Starter-Template. 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/whereissam/React-Vite-Tanstack-Starter-Template/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/whereissam/React-Vite-Tanstack-Starter-Template

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 React-Vite-Tanstack-Starter-Template AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/whereissam/react-vite-tanstack-starter-template/agents-md"><img src="https://agentmods.dev/badge/instructions/whereissam/react-vite-tanstack-starter-template/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 React-Vite-Tanstack-Starter-Template AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/whereissam/react-vite-tanstack-starter-template/agents-md"><img src="https://agentmods.dev/badge/instructions/whereissam/react-vite-tanstack-starter-template/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 976 This file is loaded in full into every session.
When invoked 976 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00976 $0.00976
Opus 5.5 $0.00390 $0.00390
Sonnet 5.5 $0.00195 $0.00195
Haiku 4.5 $0.00098 $0.00098

Measured 2mo ago against content hash 41a708f7e3a7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

React-Vite-Tanstack-Starter-Template 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 · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Project Conventions for AI Agents

This is the canonical instructions file for this repository. It is read by AI coding tools that follow the AGENTS.md standard (Cursor, GitHub Copilot, Codex, and others). CLAUDE.md points here.

Stack Overview

Layer Tools
Framework React 19, TypeScript (strict)
Build Vite
Routing TanStack Router (file-based, codegen)
Data TanStack Query
Styling TailwindCSS v4, class-variance-authority, tailwind-merge
Components shadcn/ui on Base UI primitives, Lucide icons
Testing Vitest + Testing Library (jsdom)
Quality ESLint, Prettier, lefthook pre-commit, GitHub Actions CI

Key Commands

Always use bun (never npm/yarn) and bunx (never npx).

Command What it does
bun run dev Start the dev server
bun run build Type-check and build for production
bun run lint Run ESLint
bun run typecheck Type-check only (tsc --noEmit)
bun run format Format all files with Prettier
bun run format:check Check formatting without writing
bun run test Run the Vitest suite once
bun run check Lint + typecheck + format check
bun run verify Full gate: check + test + build. Run this before declaring work done.

Read the full file on GitHub · 93 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.

  1. 2mo ago First seen · 93 lines · 976 tokens per session scan A 41a708f7e3a7

Subscribe to this mod's changes

React-Vite-Tanstack-Starter-Template AGENTS.md is an instructions file published in the GitHub repository whereissam/React-Vite-Tanstack-Starter-Template (9 stars, last pushed yesterday), licensed MIT. It adds 976 tokens to every session, about $0.0039 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 2026-08-31.

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vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot