util SKILL.md skillA

util from afinit-com/the-world-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add afinit-com/the-world-skills/util@git:20261020.ce02bd3

Pins git:20261020.ce02bd3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
afinit-com/the-world-skills
Path
skills/util/SKILL.md
Versions recorded
2
Latest version
git:20261020.ce02bd3, committed Oct 20, 2026
First version recorded
Oct 20, 2026
Size
1,900 bytes
Repository stars
4
License
MIT

The World — Standalone utilities that support a World harness but don't need one — invoked with a subcommand. Currently "slack icon generate", which turns any source image into a Slack-compliant app/bot icon (square, 512–2000px, under 2MB) by picking the right squaring strategy per image. Use when the user says "the world util", "슬랙 아이콘", "slack icon 만들어", "아이콘으로 편집해줘", or a Slack icon upload was rejected for size/ratio.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# util — harness-adjacent utilities

Everything here is a one-off tool with no harness preconditions: no `harness.py`, no
`WORLD.md`, no venv. That is the line between this skill and the start skill — anything
that touches a harness's own code lives in the harness (its world-word commands and
`world/`), installed there by the start skill.

## Dispatch

Read the argument the user passed and follow the matching reference file **in full**. Match
on the leading words, not an exact string — `slack icon generate`, `slack icon`, and `icon`
all mean the same subcommand.

| Subcommand | What it does | Follow |
|---|---|---|
| `slack icon generate` | Any image → Slack-compliant app/bot icon | `references/slack-icon.md` |

**No argument, or one that matches nothing:** don't guess and don't improvise a utility
that isn't here. List the subcommands above in one line and ask which they want. If the
request is clearly about a harness's agents, tools, or bootstrapping, say so and point at
the harness's own command (its world-word) or the `start` skill (`/the-world:start`, Codex `$the-world:start`) instead.

## Adding a subcommand later
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add afinit-com/the-world-skills/util@sha256:00ad293ddfeafe0b

The line at the top of this page pins the label git:20261020.ce02bd3, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_7vz7ydgicm3r3s4h.svg)](https://markdownregistry.com/a/art_7vz7ydgicm3r3s4h)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Oct 20, 2026.

versioncommittedcommitsizeaudit
git:20261020.ce02bd3 latest2026-10-20 ce02bd3 1,900 BA view · diff
git:20261020.01d58d82026-10-20 01d58d8 1,886 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (1900 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

afinit-com/the-world-skills · 4 stars · license MIT · pushed 2026-10-26 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7vz7ydgicm3r3s4h
GET https://markdownregistry.com/api/v1/resolve?ref=afinit-com/the-world-skills/util
GET https://markdownregistry.com/api/v1/blob/00ad293ddfeafe0b3cb966aa805e59f9945c337a8d39897b6f99cc02a6a9b5d4

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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