Borrowing it
Nothing to install: this file belongs to kks0488/vibe-codex. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/kks0488/vibe-codex/main/AGENTS.mdgit clone --depth 1 https://github.com/kks0488/vibe-codexWrote 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.
[](https://agentmods.dev/instructions/kks0488/vibe-codex/agents-md)<a href="https://agentmods.dev/instructions/kks0488/vibe-codex/agents-md"><img src="https://agentmods.dev/badge/instructions/kks0488/vibe-codex/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.
<a href="https://agentmods.dev/instructions/kks0488/vibe-codex/agents-md"><img src="https://agentmods.dev/badge/instructions/kks0488/vibe-codex/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00454 | $0.00454 |
| Opus 5.5 | $0.00182 | $0.00182 |
| Sonnet 5.5 | $0.00091 | $0.00091 |
| Haiku 4.5 | $0.00045 | $0.00045 |
Grade A, and why
vibe-codex 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.
What it actually says
vibe-codex (Codex CLI)
This repo is Codex-first and keeps distributable skill sources under skills.
Repo conventions
- Keep
scripts/*.shandscripts/*.ps1feature-parity (same subcommands + flags). - Skills live in
skills/<skill>/SKILL.md(+ optionalagents/openai.yamlUI metadata + dependency hints; optional legacySKILL.json). Tip: keepagents/openai.yamlJSON-formatted (JSON ⊂ YAML) so doctor scripts can validate without extra deps. - Current OpenAI documentation lists
.agents/skillsfor local discovery. New installs should target.agents/skillsvia--agents; the rootskillsdirectory also supports plugin packaging. - For
SKILL.mdYAML frontmatter, keepname≤ 64,description≤ 1024, andmetadata.short-description≤ 1024. - When changing skills, keep
SKILL.md↔agents/openai.yaml(andSKILL.jsonif present) aligned and runbash scripts/doctor.sh. - Avoid creating backup folders inside any skills directory (Codex loads skills recursively and backups can become duplicate skills).
- Do not describe
vc teamsas Codex-native. It is a persistent mailbox companion; built-in Codex subagents perform actual in-session delegation. - Do not add guaranteed-success, infinite-retry, or never-ask instructions. Use bounded recovery and truthful blockers.
OpenAI docs
- Prefer the OpenAI Developer Docs MCP server when you need up-to-date OpenAI/Codex/API info.
- Setup:
vc mcp docs(orcodex mcp add openaiDeveloperDocs --url https://developers.openai.com/mcp)
- Setup:
Handy commands
- Diagnose:
bash scripts/doctor.sh(orpwsh scripts/doctor.ps1) - Install skills:
bash scripts/install-skills.sh [--agents](orpwsh scripts/install-skills.ps1 [--agents]) - MCP helpers:
vc mcp docs,vc mcp skills,vc mcp list
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.
- 2mo ago First seen · 26 lines · 454 tokens per session scan A a73f36732739
vibe-codex AGENTS.md is an instructions file published in the GitHub repository kks0488/vibe-codex (11 stars, last pushed 20d ago), licensed MIT. It adds 454 tokens to every session, about $0.0018 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.
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).
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.
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).
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.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.
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).