What is skills AGENTS.md?

Repository guidance for a library of 263 coding-agent skills used as source material for assembling plugins. Each skill has required documentation folders and follows topic-based naming rules.

Adding or reviewing skills, following the required SKILL.md structure, choosing names, and locating examples or reference material.

It helps agents understand what belongs in this skill library and how skill files must be organized, without confusing the repository with a finished plugin.

How asgard-ai-platform/skills configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to asgard-ai-platform/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/asgard-ai-platform/skills/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/asgard-ai-platform/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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/asgard-ai-platform/skills/agents-md.svg)](https://agentmods.dev/instructions/asgard-ai-platform/skills/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/asgard-ai-platform/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/asgard-ai-platform/skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,206 This file is loaded in full into every session.

When invoked 1,206 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.

Model	Per session	Once invoked
Fable 5.1	$0.01206	$0.01206
Opus 5	$0.00603	$0.00603
Sonnet 5	$0.00241	$0.00241
Haiku 4.5	$0.00121	$0.00121

Measured 8d ago against content hash df088823b697, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

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 8d 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 · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Asgard Skills — Repository Context

This repository is the raw ingredient pantry for Asgard AI Platform plugins: 263 coding agent skills organized by topic prefix.

Repository Purpose

NOT a plugin: this repo holds raw skill files; plugins are assembled elsewhere by combining curated skills + MCPs
NOT a template: see skill-template for the plugin scaffolding
IS a versioned library of methodology + judgment + gotchas, packaged as Claude Agent Skills

Skill Anatomy

Every skill is a directory at the repo root, named {category}-{slug}, containing:

{category}-{slug}/
├── SKILL.md           ← REQUIRED: frontmatter + methodology body
├── examples/          ← REQUIRED: directory must exist (uses .gitignore trick for empty dirs)
├── references/        ← REQUIRED: directory must exist; populated when SKILL.md offloads heavy content
└── scripts/           ← OPTIONAL: only present when the skill has executable scripts

Naming Convention

Skills use topic-based prefixes (no skill- prefix). The 22 categories:

grad-      Graduate-level theoretical models
algo-      Algorithms
biz-       Business school frameworks
hum-       Humanities / critical reasoning
tw-        Taiwan-specific knowledge
ecom-      E-commerce practical
econ-      Economics fundamentals
meta-      Interdisciplinary mental models
ops-       Business operations
law-       Legal frameworks
pr-        PR & brand communications
cs-        Customer service
data-      Data analytics
mfg-       Manufacturing
mkt-       Digital marketing
med-       Mass communication / journalism
soc-       Social science
stat-      Statistical methodology
tech-      General tech (API, prompt eng, MCP)
ux-        Design / UX methodology
fin-       Finance practical
xborder-   Cross-border commerce

SKILL.md Rules

Frontmatter (name, description required; metadata optional)
Description: WHAT + WHEN, imperative tone, < 1024 chars, no XML angle brackets, includes trigger phrases
Body: < 500 lines / < 5,000 tokens — offload heavy content to references/
IRON LAW block: every skill must declare one non-obvious constraint
Output Format: a Markdown or JSON template the agent should follow
Gotchas: 5-6 specific, actionable pitfalls (not generic advice)
Skill name must not contain: claude or anthropic (reserved)

Read the full file on GitHub · 113 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.

8d ago First seen · 113 lines · 1,206 tokens per session scan A df088823b697

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository asgard-ai-platform/skills (228 stars, last pushed 3mo ago), licensed MIT. It adds 1,206 tokens to every session, about $0.0060 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 2026-08-30.

Claude Code ai-agent anthropic claude claude-agent-skills coding-agent

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

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 · 6,785 tokens

skills: Instructions file for Codex