vibe: Instructions file for Codex

AGENTS.md

vibe AGENTS.md is an instructions file for Codex, OpenCode from di-sukharev/vibe. It costs 1,469 tokens per session, scanned A, original, Apache-2.0.

A general operating guide for coding agents working on the project, including how to follow instructions, make decisions, and work with users.

In plain words
What is it for?
Use it to guide repository investigation, implementation, testing, communication, and handling of conflicting instructions.
Why use it?
It sets expectations for careful, evidence-based changes and helps prevent unsupported claims or unnecessary work.

Instructions file for CodexOpenCode

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

This is di-sukharev/vibe's own configuration. It tells Codex and OpenCode how to work on vibe 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 vibe configures →

Reuse

Borrowing it

Nothing to install: this file belongs to di-sukharev/vibe. 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/di-sukharev/vibe/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/di-sukharev/vibe

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 vibe AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/di-sukharev/vibe/agents-md"><img src="https://agentmods.dev/badge/instructions/di-sukharev/vibe/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,469 This file is loaded in full into every session.
When invoked 1,469 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 $0.01469 $0.01469
Opus 5.5 $0.00588 $0.00588
Sonnet 5.5 $0.00294 $0.00294
Haiku 4.5 $0.00147 $0.00147

Measured 3d ago against content hash e7f06fb6aabe, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vibe 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 3d 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

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Working agreement

The user is not a programmer. The user owns the product. You own all the engineering decisions.

Use the user's language for conversation, product documents, and tasks. Write technical documents and agent instructions in English. Follow ASD-STE100: short sentences, active voice, and consistent terms. Use complete sentences and enough words to make each instruction clear.

Project

Path Purpose
packages/contracts Shared Zod schemas for API requests, responses, and errors
backend Bun/Hono API and background processes; Prisma and PostgreSQL
webapp React Router app for signed-in users; pages render in the browser (CSR)
website Public React Router pages rendered at build time (SSG)
mobile branch Expo app

Read each application's README for local setup instructions and rules for running it.

Architecture

Define API changes in packages/contracts. The backend validates shared schemas. Clients import shared types and validation rules. Never duplicate API types in applications.

Keep backend features in backend/src/modules/<feature>. HTTP handlers call application services. Add a domain layer only for business rules. Other modules import a feature only through its index.ts.

Keep webapp features in webapp/src/features/<feature>. Features own API calls, queries, forms, and components. Routes build pages using the public exports of features. Shared platform code and UI primitives must not import features. bun run architecture:check enforces these boundaries.

Put public pages in website. Use webapp for pages that require sign-in and for order and payment pages.

Read the full file on GitHub · 98 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. 3d ago Changed · +3 lines · +56 tokens per session e7f06fb6aabe
  2. 4d ago Changed · -2 lines · -104 tokens per session c13de70561f5
  3. 6d ago Changed · +4 lines · +51 tokens per session b05290350201
  4. 9d ago Changed · +2 lines · +22 tokens per session 66f1bd141b81
  5. 13d ago Changed · +2 lines · +42 tokens per session b114f7de42e0
  6. 15d ago Changed · -33 lines · -859 tokens per session fbc0b1bc10b8
  7. 1mo ago Changed · -2 lines · -29 tokens per session 844108bd3fcd
  8. 1mo ago Changed · +18 lines · -366 tokens per session 183617c24a66
  9. 1mo ago Changed · +1 lines · -570 tokens per session 978609808816
  10. 1mo ago First seen · 105 lines · 3,226 tokens per session scan A 510ce0a679c6

Subscribe to this mod's changes

vibe AGENTS.md is an instructions file published in the GitHub repository di-sukharev/vibe (765 stars, last pushed 3d ago), licensed Apache-2.0. It adds 1,469 tokens to every session, about $0.0059 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.

Related

Other instructions, from other repositories

vscode buildNext.instructions.md

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).

microsoft/vscode · 9,715 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,786 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,731 tokens

deno copilot-instructions.md

Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.

denoland/deno · 3,077 tokens