Hello from atarcms.com, built by an agent
The project's own site runs on AtarCMS, and a coding agent built it from the owner's brief with the skill that ships in the skeleton.
Open source · MIT licence
A small CMS that AI agents can build, run and read
AtarCMS runs small multilingual sites — a studio, a clinic, a club, a workshop — on one small server. Hand it to your coding agent: it installs the site and builds it from your brief. Then your editors, or their agents, take it from there.
Clone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder
(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md
there and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;
then open the site's folder and continue with its skill.What AtarCMS is
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AI-ready, end to end
A coding agent builds the site with the skill that ships in the project. A browser agent runs the admin from one guide at /admin/ai-guide. Language models read the public site through /llms.txt and a markdown twin of every page.
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Multilingual, right to left included
Content, menus, search and feeds per language, with linked translations. Hebrew and other right-to-left languages mirror the whole site and the whole admin, not just the text. The admin itself speaks five languages.
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Small and honest
PHP 8.4 and MariaDB on one small VPS. No build step, no node_modules, no compiled cache: it boots from the sources on plain OPcache. One to five trusted editors, MIT licence, your data on your server.
Measured
A clean sheet in Lighthouse
- 100 Performance
- 100 Accessibility
- 100 Best Practices
- 100 SEO
- 3/3 Agentic Browsing
The default theme of the site skeleton, measured with Lighthouse — including Google's new agentic browsing audit, which checks that AI agents can use a site.
Screenshots
A look inside the admin
Real screenshots, no mock-ups. Select one to see it full size.
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The dashboard: recent activity, content and translation state at a glance -
The entry form: tabs per field group, the status and publication date beside the fields -
Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map -
Sections: the site's menu as a tree, drag to nest, every change audited -
Full right to left: the same admin in Hebrew, mirrored by logical CSS -
Site settings, Integrations: verification codes and statistics, each one field
Get going
Quick start
Start a site with Composer, then fill .env, run the migrations and create the first administrator — install.md in the skeleton covers every path: your computer or a server, with Docker or without, shared hosting. Or open your coding agent in an empty folder and paste the prompt. It asks before it installs packages or changes a server, and you type the secrets yourself.
Install with Composer
composer create-project yanfishel/atarcms my-site --no-interactionOr hand it to your coding agent
Clone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder
(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md
there and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;
then open the site's folder and continue with its skill.Updates
Latest news
AtarCMS v0.2.0: demo content that follows your brief
Demo content now builds the sections, pages and tags of your brief, a new admin speaks the site's language, and the launch checklist walks you through Google sign-in.
AtarCMS v0.1.0: the first public version
The core and the site skeleton are public under the MIT licence and on Packagist: composer create-project yanfishel/atarcms starts a site.