For the complete documentation index, see llms.txt. Markdown variants are available by appending .md to any URL or sending an Accept: text/markdown header. The asciicn agent skill, for building any ASCII effect on the engine, is at /.well-known/agent-skills/asciicn/SKILL.md.

Privacy

asciicn.dev is a documentation site. It has no accounts, no ads and no newsletter. It measures how the docs are used so we can tell which pages and components help, and nothing it collects is sold or used for advertising.

Analytics

The site uses Capless, PostHog and Vercel Web Analytics. They record page views, clicks, page-load performance and a few named actions, such as copying an install command or the agent prompt, searching the docs, changing a preview's controls or switching the theme. Each runs only when the deployment is configured with a project for it. Capless keeps a random ID in local storage and PostHog keeps one in a cookie and local storage, so repeat visits count as one visitor. Both estimate your country and city from your IP address; Capless stores only a keyed hash of it. Vercel Web Analytics counts page views without cookies.

Capless also records sessions: how the page changed and where you scrolled and clicked, so we can see where the docs or the Studio confuse people. Anything you type into a field is masked before it leaves your browser, and password fields are never recorded. PostHog events go through asciicn.dev itself on their way to PostHog's US servers. We don't sell or share this data or use it for advertising. Blocking analytics scripts in your browser stops all of it, and the site works the same.

What's stored in your browser

Local storage remembers your theme and palette, your preferred package manager for install commands, and a few docs and Studio display settings. A cookie named sidebar_state remembers whether the docs sidebar is open. These stay in your browser, aren't used for tracking and aren't shared with anyone. Clearing your site data removes them.

Images, video and your camera

When you open an image or video file, or allow camera access, in the Studio or a component demo, the frames are converted to glyphs in your browser. Nothing is uploaded: the site has no upload endpoint, and the camera stops when you leave the page or turn it off.

Hosting and server logs

Vercel hosts the site. Like any web host, it processes your IP address and request details to serve pages and protect the site from abuse, under the Vercel privacy policy. The GitHub star count in the header is fetched by our server, so your browser doesn't contact GitHub until you follow the link.

When the shadcn CLI, the skills CLI or a coding agent downloads a registry item, the agent skill or llms.txt, the site records which file was fetched, the tool's user agent and the referring page, so we can count installs. That record has no IP address and no ID that links it to you or your other requests, and nothing about your project is sent.

Questions

Email leo@asciicn.dev with any privacy question or request. If this policy changes, the date below changes with it.

asciicn · Last updated 2026-11-09