skills AGENTS.md

skills AGENTS.md is an instructions file for Codex, OpenCode from tony/skills. It costs 7,007 tokens per session, scanned C, original, MIT.

A project instruction file describing conventions for a public marketplace of Claude Code and Codex add-ons. It covers project identity, official references, naming, and Git commit standards.

In plain words
What is it for?
Use it as a reference when authoring plugins, skills, hooks, agent integrations, marketplace files, or documentation for the project.
Why use it?
It gives contributors shared rules to follow when creating, reviewing, or changing add-ons in the project.

Instructions file for CodexOpenCode

Installs and runs on its own, but its text points at files inside the plugin that ships it — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/tony/skills/agents-md
Clone the repo
git clone --depth 1 https://github.com/tony/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 skills AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tony/skills/agents-md.svg)](https://agentmods.dev/instructions/tony/skills/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/tony/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/tony/skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 7,007 This file is loaded in full into every session.
When invoked 7,007 The same file — it is already loaded in full.
Security scan C 1 finding. Scan, not verified.
Origin unknown 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 $0.07007 $0.07007
Opus 5 $0.03504 $0.03504
Sonnet 5 $0.01401 $0.01401
Haiku 4.5 $0.00701 $0.00701

Measured today against content hash 1e60dcce3e0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

skills AGENTS.md scanned grade C with 1 finding 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 today.

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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

- Block rm -rf and git push --force without confirmation
AGENTS.md · 671 lines

How it starts

The opening of the file, as written. The whole thing — 671 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — claude-plugins

Project conventions and standards for AI-assisted development.

Project Identity

This is a public, third-party Claude Code plugin marketplace providing language-agnostic AI / agentic workflow plugins for DX efficiency. Hosted on GitHub (tony/skills), not affiliated with or endorsed by Anthropic or OpenAI.

Official Documentation References

These docs are the canonical references for the two plugin systems this marketplace targets. Consult them when authoring or reviewing plugin components.

Codex:

  • Package your plugin.codex-plugin/plugin.json, marketplace format, local and repo marketplaces, bundled MCP servers and hooks
  • Build skills — SKILL.md authoring for Codex

Claude Code:

  • Plugins overview — plugin lifecycle, installation, discovery
  • Plugin reference — component types, frontmatter schemas, directory structure
  • Plugin marketplaces — marketplace.json schema, source types, publishing
  • Skills — skill authoring, SKILL.md format, $ARGUMENTS
  • Hooks — hook events, types (command/prompt/agent), hooks.json
  • MCP servers — MCP server configuration, .mcp.json, server types
  • Settings — plugin settings, permissions, scopes
  • Sub-agents — agent frontmatter, delegation patterns, tool restrictions
  • Agent teams — multi-agent coordination (experimental)

Git Commit Standards

Format commit messages as:

Scope(type[detail]) concise description

why: Explanation of necessity or impact.

what:
- Specific technical changes made
- Focused on a single topic

Read the full file on GitHub · 671 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. today First seen · 671 lines · 7,007 tokens per session scan C 1e60dcce3e0a

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository tony/skills (2 stars, last pushed 6d ago), licensed MIT. It adds 7,007 tokens to every session, about $0.0350 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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