mf

mf is a skill for Claude Code, Codex from queelius/claude-anvil. It costs 61 tokens per session (2,972 once invoked), scanned A, original, MIT.

A command-line toolkit and site guide for managing content on the Metafunctor Hugo website, a static website generated from files.

In plain words
What is it for?
Use it to create and update site records, generate Hugo content, manage metadata, and maintain the site's content sections.
Why use it?
It provides the site structure, metadata rules, and commands needed to keep papers, projects, publications, series, and posts organized.

Skill for Claude CodeCodex

Part of the mf plugin — 2 skills, 2 commands shipped together

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/queelius/claude-anvil/mf
Any agent
npx skills add queelius/claude-anvil --skill mf
Clone the repo
git clone --depth 1 https://github.com/queelius/claude-anvil

Made for: Claude Code, Codex.

Or install mf, the plugin that ships this one along with the rest of its 2 skills, 2 commands.

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 mf

README.md
[![agentmods](https://agentmods.dev/badge/skills/queelius/claude-anvil/mf.svg)](https://agentmods.dev/skills/queelius/claude-anvil/mf)
Your own site
<a href="https://agentmods.dev/skills/queelius/claude-anvil/mf"><img src="https://agentmods.dev/badge/skills/queelius/claude-anvil/mf.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,972 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00061 $0.02972
Opus 5 $0.00030 $0.01486
Sonnet 5 $0.00012 $0.00594
Haiku 4.5 $0.00006 $0.00297

Measured 5d ago against content hash 7fad7c262c83, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

mf 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 5d 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.

mf/skills/mf/SKILL.md · 258 lines

How it starts

The opening of the file, as written. The whole thing — 258 lines — stays where its author put it; the contents beside it link to each section on GitHub.

mf — Metafunctor Site Management

A CLI toolkit + site architecture guide for metafunctor.com. Works from any directory.

Division of labor:

  • mf does mechanics: database CRUD, Hugo content generation, metadata operations
  • Claude does judgment: choosing commands, interpreting intent, sequencing workflows, writing content

Install location: ~/github/repos/mf (editable install: pip install -e ".[dev]") Site root: ~/github/repos/metafunctor Site URL: https://metafunctor.com (also https://queelius.github.io/metafunctor) Engine: Hugo with Ananke theme Deployment: docs/ committed to master, served by GitHub Pages

Site Architecture

Content Sections

Directory Type Notes
content/post/ Blog posts Date-prefixed dirs: 2024-01-slug/index.md
content/papers/ Research papers Generated from paper_db via mf papers generate
content/publications/ Publication lifecycle registry Independent pubs_db managed via mf pubs (add, update, log, pull); NOT derived from paper_db at runtime
content/projects/ Software projects Generated from projects_db via mf projects generate
content/series/ Multi-part series Landing pages with _index.md
content/writing/ Fiction/creative writing_type: "novel", "essay", "short-story"
content/medical/ Medical records Custom sidebar layout, Chart.js for labs
content/research/ Research overviews
content/probsets/ Problem sets Organized by course
content/media/ Book/resource reviews

Content type separation is strict: fiction goes in /writing, not /papers.

Taxonomies

Taxonomy URL Purpose
tags /tags/ Technical keywords (kebab-case)
categories /categories/ Broad content categories
genres /genres/ Document types (paper, novel, etc.)
series /series/ Multi-part content grouping
linked_project /linked-projects/ Links content to projects

Read the full file on GitHub · 258 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. 5d ago First seen · 258 lines · 61 tokens per session scan A 7fad7c262c83

Subscribe to this mod's changes

mf is a skill published in the GitHub repository queelius/claude-anvil (2 stars, last pushed 1mo ago), licensed MIT. It adds 61 tokens to every session and 2,972 once invoked, about $0.0003 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 2026-08-31.

Related

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