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Get started with Codex

Download the Codex plugin preview, install it locally and build your first app.

Verified 16 October 2026

Use Codex as your starting point. The Unstoppable Stack plugin brings 19 skills and reference routers into your assistant; the CLI handles app scaffolding.

Local plugin preview

This download contains skills and references for Claude and Codex. It is a local installation preview, not a public marketplace listing. Native package parsing has been checked; full session activation and end-to-end assistant workflows remain under evaluation.

1

Check your assistant and install the matching CLI

Start with Codex installed and signed in, plus Node.js 22.17 or newer and npm. This plugin requires CLI 0.4.0-beta.1. The matching candidate is not on npm yet; use this pinned source build in a new folder. npm 0.3.0 does not supply the maintained workflow. The commands below use a macOS/Linux shell and a user-writable npm prefix.

bash
codex --version
codex plugin --help
git clone https://github.com/unstoppable-stack/unstoppable-dev.git unstoppable-cli-source
cd unstoppable-cli-source
git checkout 121cabca1ed2978f98ff1795cc6b87401889be9e
cd packages/cli
npm ci --ignore-scripts
mkdir -p ../../cli-artifacts
npm pack --pack-destination ../../cli-artifacts
npm install --global --prefix "$HOME/.local" ../../cli-artifacts/unstoppable-stack-cli-0.4.0-beta.1.tgz
export PATH="$HOME/.local/bin:$PATH"
cd ~
us --version
2

Extract the plugin download

Download the archive above, then run this from your Downloads folder in a macOS or Linux shell. Adjust the folder if your browser saves elsewhere. Keep this terminal open and retain the extracted folder for the local catalog.

bash
cd ~/Downloads
tar -xzf unstoppable-stack-plugins-0.1.2.tar.gz
PLUGIN_DIR="$(pwd)/unstoppable-stack-plugin"
3

Install in Codex

Register the extracted local catalog, then install Unstoppable Stack from it. Registration alone does not activate the plugin. Check codex plugin --help if your version uses a different installation surface.

bash
codex plugin marketplace add "$PLUGIN_DIR"
codex plugin add unstoppable-stack@unstoppable-stack-dev
4

Start a fresh workspace session

This example creates ~/shop-workspace, then launches Codex there after installation. In the Codex desktop app, open that folder and start a new chat instead. Choose a different name if it already exists.

bash
cd ~
mkdir shop-workspace
cd shop-workspace
codex
5

Activate the entry skill

In the new Codex session, select the entry skill by this namespaced name from the available skills. Confirm that it appears before asking it to build.

text
unstoppable-stack:build-with-unstoppable
6

Describe the first app

Use a small desktop baseline to check the setup. The assistant should inspect the installed CLI and tell you which generated app folder to run.

text
Scaffold a Pear Desktop app named shop-starter with local storage and peer networking. Use the installed Unstoppable Stack CLI’s actual catalog, keep storage and networking in the worker, install the app dependencies and tell me which folder to run.

Check the result

Run the generated app from shop-starter, save an entry, close it normally and open it again to confirm persistence. Make one small visible change with your assistant. Local AI can be added after the baseline works; it needs compatible hardware and a model download.

If the skill does not appear

Confirm both catalog registration and plugin installation completed, then start a fresh session in the intended workspace. Keep the entire extracted folder together. If your project already has CLI-generated guidance, preserve its instructions and inspect overlap before migrating. Use the raw CLI guide while a host installation issue is unresolved.

Need help? Report an issue with your CLI version, platform, command and first relevant error.