agent-skills: Instructions file for Codex

AGENTS.md

agent-skills AGENTS.md is an instructions file for Codex, OpenCode from shengyy/agent-skills. It costs 612 tokens per session, scanned A, original, MIT.

Repository-wide instructions for contributing to a collection of reusable coding-agent skills. They define naming, file layout, documentation, privacy, change-record, and validation rules.

In plain words
What is it for?
Use it when adding or modifying skills in this repository, especially to follow its conventions and run the required validation.
Why use it?
Shared rules prevent skills from being structured inconsistently or publishing secrets and outdated duplicate information. A validation script checks the repository after changes.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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-skills AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/shengyy/agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/shengyy/agent-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 612 This file is loaded in full into every session.
When invoked 612 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 $0.00612 $0.00612
Opus 5 $0.00306 $0.00306
Sonnet 5 $0.00122 $0.00122
Haiku 4.5 $0.00061 $0.00061

Measured 6d ago against content hash 953a773aef51, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-13, from the pricing page.

Security

Grade A, and why

agent-skills 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 6d 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 · 19 lines

What it actually says

agent-skills · Agent 指引

公开的 Agent Skills 合集(MIT),用 skills CLI 一键分发到 Claude Code、Codex、Cursor 等。本文件是各编码 Agent 共用的仓库级规则;CLAUDE.md 导入本文件。人类贡献流程、发版步骤见 CONTRIBUTING.md,不在这里复制。

优先级:用户当次指令 > 本文件 > 其它文档。skills/<name>/SKILL.mdscripts/validate_skills.py 是事实。

硬约束

  • 一个 skill 一个目录。 skills/<name>/ 目录名即 skill 名(小写、- 连字),SKILL.md frontmatter 的 name 必须与目录名一致,description 写清触发场景与触发词。附带脚本、模板、参考资料放该目录下的 scripts/references/assets/,用相对路径引用。
  • 唯一 owner 与同步点。 一个事实一个文件,调用方链接它;仓库里仅有的两个同步点是版本号(VERSIONCHANGELOG.md 版本段,README 徽章读 git tag)和双语 README(README.mdREADME.zh-CN.md 同步更新,不让两份说法漂移)。
  • 禁补丁、禁兼容。 skill 面向当前一代模型(GPT‑6 / Claude 5+):少约束、多放权,只保留分工、边界、验收三类内容;旧模型时代的护栏、沙箱管道、并发注册表之类的过程控制一律删掉,不保留兼容版本。
  • 单文件规模。 SKILL.md 超过 800 行先按职责拆到 references/
  • 公开仓库。 不把机密、令牌、个人路径、客户信息写进任何文件。
  • 门禁。 改动后运行 python3 scripts/validate_skills.py(CI 跑同一个脚本);改了 skill 行为就在 CHANGELOG.md[Unreleased] 记一笔。

自主权与交付

在上述边界内默认放权,可以大改;只在真实的范围变更、发版打 tag 或只有用户能给的输入时停下来。工作区里已有的改动属于用户,不覆盖、不回滚、不混进本次提交。用户在描述问题或提问而不是要求改动时,交付物是你的判断。中文回复,标识符与命令保持英文;交付说明改了什么、跑了什么校验、未验证项。

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. 6d ago First seen · 19 lines · 612 tokens per session scan A 953a773aef51

Subscribe to this mod's changes

agent-skills AGENTS.md is an instructions file published in the GitHub repository shengyy/agent-skills (2 stars, last pushed 8d ago), licensed MIT. It adds 612 tokens to every session, about $0.0031 per session on Opus 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 2026-09-06.

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