no-vibe: Instructions file for Codex

AGENTS.md

no-vibe AGENTS.md is an instructions file for Codex, OpenCode from rizukirr/no-vibe. It costs 1,014 tokens per session, scanned A, original, MIT.

Project instructions for no-vibe, a coding tutor that helps users learn by reviewing and guiding their code rather than writing project files during active sessions.

In plain words
What is it for?
Developing or reviewing no-vibe, especially its tutor-style behavior, guided coding flow, prediction checks, and write restrictions.
Why use it?
They give an AI agent the project rules, architecture, verification commands, and teaching principles needed to work on no-vibe correctly.

Instructions file for CodexOpenCode

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

This is rizukirr/no-vibe's own configuration. It tells Codex and OpenCode how to work on no-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 no-vibe configures →

Reuse

Borrowing it

Nothing to install: this file belongs to rizukirr/no-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/rizukirr/no-vibe/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/rizukirr/no-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 no-vibe AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/rizukirr/no-vibe/agents-md/github.svg)](https://agentmods.dev/instructions/rizukirr/no-vibe/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/rizukirr/no-vibe/agents-md"><img src="https://agentmods.dev/badge/instructions/rizukirr/no-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 no-vibe AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/rizukirr/no-vibe/agents-md"><img src="https://agentmods.dev/badge/instructions/rizukirr/no-vibe/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,014 This file is loaded in full into every session.
When invoked 1,014 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 $0.01014 $0.01014
Opus 5.5 $0.00406 $0.00406
Sonnet 5.5 $0.00203 $0.00203
Haiku 4.5 $0.00101 $0.00101

Measured 5d ago against content hash 5a1e9edc5a00, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

no-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 5d 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 · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS

Repo purpose

This repo is the no-vibe plugin for Claude Code, Codex, opencode, Pi and Antigravity. Developing the plugin is normal editing. The write guard applies only when .no-vibe/active exists at the repo root.

What no-vibe is for

People learn by doing the thinking and by typing code by hand. In an existing project the agent first reads it and saves what it learns to .no-vibe/project.md, so its questions, goal options and syllabus fit the project and nothing it teaches breaks what already works. It finds the user's level with concrete multiple-choice questions, agrees a goal with them, and writes a high-level syllabus they approve. It teaches each section briefly, concept first or code first, chosen per section. Each section gets at least 3 standalone exercises with the full code shown, so the user builds muscle memory by typing it. Later sections reuse earlier material.

Test every teaching change against one question: does the user still think and still type every line?

Sources and generated files

The hand-edited sources are no-vibe.config.json, skills/*/SKILL.md, hooks/*.sh, hooks/run-hook.cmd, bin/, lib/, runtimes/, tests/ and the prose docs. Everything listed in .no-vibe-manifest is generated. Edit the source, run npm run generate, and never hand-edit a generated file. npm run check fails when a generated file is stale.

The version lives only in no-vibe.config.json.

Write guard

hooks/block-writes.sh and hooks/block-bash-writes.sh are the only guard implementation. Claude Code, Codex and Antigravity call them as hooks, and opencode and Pi call them from their generated plugins.

The Write-tool guard allows writes only under .no-vibe/** and $HOME/.no-vibe/**, and refuses a path through a symlink or longer than 4000 bytes. The Bash guard reads each command's text and also allows /tmp/**, /var/tmp/**, /dev/null, /dev/stdout, /dev/stderr, /dev/tty and /dev/fd/*. It refuses a target that starts with $ or uses $(, ${ or backticks, a glob, a brace or a backslash, an overlong path, a path through a symlink, and any command over 64 KB.

Read the full file on GitHub · 57 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. 5d ago Changed · +5 lines · -663 tokens per session 5a1e9edc5a00
  2. 1mo ago First seen · 52 lines · 1,677 tokens per session scan A 132b2c86c15e

Subscribe to this mod's changes

no-vibe AGENTS.md is an instructions file published in the GitHub repository rizukirr/no-vibe (44 stars, last pushed 6d ago), licensed MIT. It adds 1,014 tokens to every session, about $0.0041 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