ai-md

ai-md is a skill for Claude Code, Codex from beel-collab/presets.dev. It costs 30 tokens per session (5,002 once invoked), scanned B, a copy of ai-md, MIT.

A method for rewriting CLAUDE.md, a file containing instructions for an AI coding tool, into shorter structured labels.

In plain words
What is it for?
It helps restructure long instructions, improve rule compliance, reduce verbose prompts, and migrate instructions between AI tools.
Why use it?
It aims to make instructions easier for AI models to follow and reduce the tokens used to provide them.

Skill for Claude CodeCodex

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 skills/beel-collab/presets.dev/ai-md
Any agent
npx skills add beel-collab/presets.dev --skill ai-md
Clone the repo
git clone --depth 1 https://github.com/beel-collab/presets.dev

Made for: Claude Code, Codex.

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 ai-md

README.md
[![agentmods](https://agentmods.dev/badge/skills/beel-collab/presets.dev/ai-md.svg)](https://agentmods.dev/skills/beel-collab/presets.dev/ai-md)
Your own site
<a href="https://agentmods.dev/skills/beel-collab/presets.dev/ai-md"><img src="https://agentmods.dev/badge/skills/beel-collab/presets.dev/ai-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,002 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin 95% copy Near-identical to another mod 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 $0.00030 $0.05002
Opus 5 $0.00015 $0.02501
Sonnet 5 $0.00006 $0.01000
Haiku 4.5 $0.00003 $0.00500

Measured 4d ago against content hash cfe7cc816025, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

ai-md scanned grade B with 2 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 4d 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

rules=$(cat ~/.claude/rules/*.md 2>/dev/null | wc -c || echo 0)

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

EVIDENCE: no-fabricate no-guess | 禁用詞:應該是/可能是 → 先拿數據 | Read/Grep→行號 curl→數據 | "好像"/"覺得"→自己先跑test | guess=shame-wall
Origin

This is a copy

95% identical to ai-md — 11 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

claude/skills/ai-ml/ai-md/SKILL.md · 525 lines

How it starts

The opening of the file, as written. The whole thing — 525 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI.MD v4 — The Complete AI-Native Conversion System

When to Use This Skill

  • Use when your CLAUDE.md is long but AI still ignores your rules
  • Use when token usage is too high from verbose system instructions
  • Use when you want to optimize any LLM system prompt for compliance
  • Use when migrating rules between AI tools (Claude, Codex, Gemini, Grok)

What Is AI.MD?

AI.MD is a methodology for converting human-written CLAUDE.md (or any LLM system instructions) into a structured-label format that AI models follow more reliably, using fewer tokens.

The paradox we proved: Adding more rules in natural language DECREASES compliance. Converting the same rules to structured format RESTORES and EXCEEDS it.

Human prose (6 rules, 1 line)  → AI follows 4 of them
Structured labels (6 rules, 6 lines) → AI follows all 6
Same content. Different format. Different results.

Why It Works: How LLMs Actually Process Instructions

LLMs don't "read" — they attend. Understanding this changes everything.

Mechanism 1: Attention Splitting

When multiple rules share one line, the model's attention distributes across all tokens equally. Each rule gets a fraction of the attention weight. Some rules get lost.

When each rule has its own line, the model processes it as a distinct unit. Full attention weight on each rule.

# ONE LINE = attention splits 5 ways (some rules drop to near-zero weight)
EVIDENCE: no-fabricate no-guess | 禁用詞:應該是/可能是 → 先拿數據 | Read/Grep→行號 curl→數據 | "好像"/"覺得"→自己先跑test | guess=shame-wall

# FIVE LINES = each rule gets full attention
EVIDENCE:
  core: no-fabricate | no-guess | unsure=say-so
  banned: 應該是/可能是/感覺是/推測 → 先拿數據
  proof: all-claims-need(data/line#/source) | Read/Grep→行號 | curl→數據
  hear-doubt: "好像"/"覺得" → self-test(curl/benchmark) → 禁反問user
  violation: guess → shame-wall

Mechanism 2: Zero-Inference Labels

Natural language forces the model to INFER meaning from context. Labels DECLARE meaning explicitly. No inference needed = no misinterpretation.

Read the full file on GitHub · 525 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. 4d ago First seen · 525 lines · 30 tokens per session scan B cfe7cc816025

Subscribe to this mod's changes

ai-md is a skill published in the GitHub repository beel-collab/presets.dev (2 stars, last pushed 3mo ago), licensed MIT. It adds 30 tokens to every session and 5,002 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 2 findings (reads agent configuration directories, makes network calls). It is 95% identical to ai-md, differing in 11 lines, and is treated as a copy.

Related

Other skills, from other repositories

brand

Brand voice, visual identity, messaging frameworks, asset management, brand consistency. Activate for branded content, tone of voice, marketing assets, brand compliance, style guides.

nextlevelbuilder/ui-ux-pro-max-skill · 35 tokens

modular-design-principles

Technology-agnostic guidance for modular systems: bounded contexts, clear boundaries, composability, state isolation, explicit contracts, failure containment, scaffolding workflows, split/merge criteria, sub-units inside a context, and compliance review signals. Use when designing or reviewing module structure…

tech-leads-club/agent-skills · 166 tokens

web-design-guidelines

Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices". Focuses on visual design and interaction patterns. Do NOT use for performance audits (use core-web-vitals), SEO (use seo), or…

tech-leads-club/agent-skills · 82 tokens

shell-scripting

Practical bash scripting guidance emphasising defensive programming, ShellCheck compliance, and simplicity. Use when writing shell scripts that need to be reliable and maintainable.

sammcj/agentic-coding · 35 tokens

slides

Create strategic HTML presentations with Chart.js, design tokens, responsive layouts, copywriting formulas, and contextual slide strategies.

nextlevelbuilder/ui-ux-pro-max-skill · 25 tokens

octopus-security-audit

OWASP compliance, vulnerability scanning, and adversarial red team testing — use for security reviews.

nyldn/claude-octopus · 24 tokens