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Dimillian Skills

Skills

A set of 16 engineering skills for agents: Apple platform work, macOS packaging, React performance, code review and refactoring

Skill

Medium risk

We rate an entry medium when the tool runs code, makes network calls or reads project files. Check what exactly it does before installing.

Why this level

  • Some skills run shell scripts and build tooling, gh and XcodeBuildMCP in your project
  • The macOS packaging and notarization skills work with signing certificates
All reasons and checks

dimillian/skillsAuthor:Thomas Ricouard

Install

In your terminal, with SkillFoxx CLI

npx skillfoxx add skills/dimillian-skills

Detects the agents on your machine, checks the risk and pins the version.

Other ways to install

Assembled automatically, review before installing.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a claude-code -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a cursor -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a github-copilot -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a codex -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a gemini-cli -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a cline -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a roo -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

A fork of Roo Code, same .roo folders.

Run in a terminal in the project folder

npx skills add dimillian/skills --skill 'App Store Changelog' GitHub 'iOS Debugger Agent' 'macOS Menubar Tuist App' 'macOS SwiftPM App Packaging (No Xcode)' 'Orchestrate Batch Refactor' 'Project Skill Audit' 'React Component Performance' 'Bug Hunt Swarm' 'Review and Simplify Changes' 'Review Swarm' 'Swift Concurrency Expert' 'SwiftUI Liquid Glass' 'SwiftUI Performance Audit' 'SwiftUI UI Patterns' 'SwiftUI View Refactor' -a opencode -y

The skills tool installs the current version from the repository. Add the -g flag to use the skill in every project.

You will need: Node.js

Checked against the repository on Sep 25, 2026, commit 05ba982.

Text for your agent

Clone the repository and copy the folders you need into the skills directory: git clone https://github.com/Dimillian/Skills.git, then cp -r Skills/<folder> into $CODEX_HOME/skills or ~/.claude/skills.

Other ways from the author
git clone https://github.com/Dimillian/Skills.git
cp -r Skills/app-store-changelog "$CODEX_HOME/skills/"

Copy the skill folders you need into $CODEX_HOME/skills. The example shows one folder; copy the others the same way.

This is third-party code. Review the repository files before installing.

What it does

The repository collects 16 self-contained skills, each in its own folder with a SKILL.md file and an openai.yaml agent config. They cover recurring engineering tasks: building App Store What's New notes from git history, debugging an iOS app through XcodeBuildMCP, auditing and refactoring SwiftUI, diagnosing SwiftUI and React performance, migrating to Swift Concurrency, packaging and signing SwiftPM macOS apps without Xcode, driving GitHub through the gh CLI, and running multi-agent diff reviews and bug hunts. Several skills run helper shell scripts, and some rely on external tools such as gh, Tuist and XcodeBuildMCP. You install them by copying the folders you need into your agent's skills directory.

Who it is for. For iOS, macOS and frontend developers who work in Codex and other agents that read SKILL.md.

Good fit when

  • You need to assemble App Store What's New notes from commit history
  • You need to review or refactor SwiftUI code and find performance regressions
  • You need a read-only multi-agent diff review or bug investigation

Not a fit when

  • The task is unrelated to Apple platforms, frontend or engineering workflows
  • Your agent does not pick up SKILL.md folder skills

Example request

Compile the App Store What's New text from commits since the last tag

Limitations

Most skills target Apple platforms and expect installed tooling: Xcode, XcodeBuildMCP, Tuist and gh. The set is written mainly for Codex, folders go into $CODEX_HOME/skills, the SKILL.md format is portable but the agent config ships as openai.yaml. The macOS packaging and notarization skills work with developer signing certificates.

How to disable. Remove the skill folders from your agent's skills directory, for example $CODEX_HOME/skills or ~/.claude/skills.

Security check

  • Some skills run shell scripts and build tooling, gh and XcodeBuildMCP in your project
  • The macOS packaging and notarization skills work with signing certificates

README in short

The README describes a collection of 16 self-contained skills for recurring engineering tasks across Apple platforms, frontend and GitHub work. They include App Store notes, iOS debugging, macOS packaging, SwiftUI and React performance, review and refactoring, and multi-agent diff and bug investigations. Installation comes down to placing the skill folders under $CODEX_HOME/skills. Each skill carries a SKILL.md with triggers, workflow, examples and references. MIT licensed.

SKILL.md

---
name: app-store-changelog
description: Create user-facing App Store release notes by collecting and summarizing all user-impacting changes since the last git tag (or a specified ref). Use when asked to generate a comprehensive release changelog, App Store "What's New" text, or release notes based on git history or tags.
---

# App Store Changelog

## Overview
Generate a comprehensive, user-facing changelog from git history since the last tag, then translate commits into clear App Store release notes.

## Workflow

### 1) Collect changes
- Run `scripts/collect_release_changes.sh` from the repo root to gather commits and touched files.
- If needed, pass a specific tag or ref: `scripts/collect_release_changes.sh v1.2.3 HEAD`.
- If no tags exist, the script falls back to full history.

### 2) Triage for user impact
- Scan commits and files to identify user-visible changes.
- Group changes by theme (New, Improved, Fixed) and deduplicate overlaps.
- Drop internal-only work (build scripts, refactors, dependency bumps, CI).

### 3) Draft App Store notes
- Write short, benefit-focused bullets for each user-facing change.
- Use clear verbs and plain language; avoid internal jargon.
- Prefer 5 to 10 bullets unless the user requests a different length.

FAQ

Which agents does this work with?

The set is built for Codex, with folders placed in $CODEX_HOME/skills. The SKILL.md format is portable, so other agents that read such folders, for example Claude Code, can pick the skills up too.

Do I have to install all 16 skills?

No. Each skill is self-contained, so copy only the folders you need.

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