creating-julia-app SKILL.md skillA
creating-julia-app from hashgraph-online/awesome-codex-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hashgraph-online/awesome-codex-plugins/creating-julia-app@git:20260520.85bed5bPins git:20260520.85bed5b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hashgraph-online/awesome-codex-plugins
- Path
plugins/AtelierArith/atelier-arith-julia-development-skills/skills/creating-julia-app/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260520.85bed5b, committed May 20, 2026
- Size
- 1,409 bytes
- Repository stars
- 1,537
- License
- Apache-2.0
Use when you create a CLI written in Julia packages or MCP servers.
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
# Creating a Julia app
Apps are Julia packages that are intended to be run as "standalone programs" (by e.g. typing the name of the app in the terminal possibly together with some arguments or flags/options). This is in contrast to most Julia packages that are used as "libraries" and are loaded by other files or in the Julia REPL.
A Julia app is structured similar to a standard Julia library with the following additions:
A `@main` entry point in the package module (see the Julia help on `@main` for details)
An `[apps]` section in the `Project.toml` file listing the executable names that the package provides.
A very simple example of an app that prints the reversed input arguments would be:
```julia
# src/MyReverseApp.jl
module MyReverseApp
function (@main)(ARGS)
for arg in ARGS
print(stdout, reverse(arg), " ")
end
return
end
end # module
```
```toml
# Project.toml
# standard fields here
[apps]
reverse = {}
```
The empty table `{}` is to allow for giving metadata about the app.
After installing this app one could run:
```
$ ~/.julia/bin/reverse some input string
emos tupni gnirts
```
directly in the terminal. See the following link to learn more:
…Read the whole file at its exact version.
How to install
mdr add hashgraph-online/awesome-codex-plugins/creating-julia-app@sha256:7b2893f760da5589The line at the top of this page pins the label git:20260520.85bed5b, 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.
[](https://markdownregistry.com/a/art_utrlyxw2upyc7udg)
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Versions
The registry has recorded 1 version of this file, committed on May 20, 2026.
Audit of the latest version
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- pass: Frontmatter declares a name
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- 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
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- pass: No instruction to read or print local credentials
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- pass: No script tag
Source
hashgraph-online/awesome-codex-plugins · 1,537 stars · license Apache-2.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_utrlyxw2upyc7udg GET https://markdownregistry.com/api/v1/resolve?ref=hashgraph-online/awesome-codex-plugins/creating-julia-app GET https://markdownregistry.com/api/v1/blob/7b2893f760da5589775180570b67a0032effd8cd04df9700152593e1e6821089
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.