agent-rsvp: Instructions file for Codex

AGENTS.md

agent-rsvp AGENTS.md is an instructions file for Codex, OpenCode from EvanBacon/agent-rsvp. It costs 770 tokens per session, scanned A, a copy of claude-peers-mcp CLAUDE.md, MIT.

Repository instructions for the agent-rsvp project that require Bun instead of Node.js, npm, pnpm, or Vite. Bun is a JavaScript runtime, package manager, test runner, and build tool.

In plain words
What is it for?
Use them when installing dependencies, running scripts or tests, building files, serving the frontend, or choosing libraries for databases, WebSockets, and environment variables.
Why use it?
They keep development commands and built-in APIs consistent across the project and avoid unsupported alternatives.

Instructions file for CodexOpenCode

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

This is EvanBacon/agent-rsvp's own configuration. It tells Codex and OpenCode how to work on agent-rsvp 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 agent-rsvp configures →

Reuse

Borrowing it

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

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 agent-rsvp AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/evanbacon/agent-rsvp/agents-md"><img src="https://agentmods.dev/badge/instructions/evanbacon/agent-rsvp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 770 This file is loaded in full into every session.
When invoked 770 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 89% 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 $0.00770 $0.00770
Opus 5.5 $0.00308 $0.00308
Sonnet 5.5 $0.00154 $0.00154
Haiku 4.5 $0.00077 $0.00077

Measured 2mo ago against content hash 1f39d317f241, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-rsvp 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.

Origin

This is a copy

89% identical to claude-peers-mcp CLAUDE.md — 30 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 · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Default to using Bun instead of Node.js.

  • Use bun <file> instead of node <file> or ts-node <file>
  • Use bun test instead of jest or vitest
  • Use bun build <file.html|file.ts|file.css> instead of webpack or esbuild
  • Use bun install instead of npm install or yarn install or pnpm install
  • Use bun run <script> instead of npm run <script> or yarn run <script> or pnpm run <script>
  • Use bunx <package> <command> instead of npx <package> <command>
  • Bun automatically loads .env, so don't use dotenv.

APIs

  • Bun.serve() supports WebSockets, HTTPS, and routes. Don't use express.
  • bun:sqlite for SQLite. Don't use better-sqlite3.
  • Bun.redis for Redis. Don't use ioredis.
  • Bun.sql for Postgres. Don't use pg or postgres.js.
  • WebSocket is built-in. Don't use ws.
  • Prefer Bun.file over node:fs's readFile/writeFile
  • Bun.$ls instead of execa.

Testing

Use bun test to run tests.

import { test, expect } from "bun:test";

test("hello world", () => {
  expect(1).toBe(1);
});

Frontend

Use HTML imports with Bun.serve(). Don't use vite. HTML imports fully support React, CSS, Tailwind.

Server:

import index from "./index.html"

Bun.serve({
  routes: {
    "/": index,
    "/api/users/:id": {
      GET: (req) => {
        return new Response(JSON.stringify({ id: req.params.id }));
      },
    },
  },
  // optional websocket support
  websocket: {
    open: (ws) => {
      ws.send("Hello, world!");
    },
    message: (ws, message) => {
      ws.send(message);
    },
    close: (ws) => {
      // handle close
    }
  },
  development: {
    hmr: true,
    console: true,
  }
})

HTML files can import .tsx, .jsx or .js files directly and Bun's bundler will transpile & bundle automatically. <link> tags can point to stylesheets and Bun's CSS bundler will bundle.

<html>
  <body>
    <h1>Hello, world!</h1>
    <script type="module" src="./frontend.tsx"></script>
  </body>
</html>

Read the full file on GitHub · 112 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 · 112 lines · 770 tokens per session scan A 1f39d317f241

Subscribe to this mod's changes

agent-rsvp AGENTS.md is an instructions file published in the GitHub repository EvanBacon/agent-rsvp (23 stars, last pushed 5mo ago), licensed MIT. It adds 770 tokens to every session, about $0.0031 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 89% identical to claude-peers-mcp CLAUDE.md, differing in 30 lines, and is treated as a copy.

Related

agent-rsvp AGENTS.md compared with instructions from other repositories

agent-rsvp AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
agent-rsvp AGENTS.mdEvanBacon/agent-rsvpInstructions file235mo agoMITA770Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot