app-shell skillA
app-shell is agent-read markdown (skill) from dembrandt/dembrandt-skills: The persistent shell around an application — the top bar, the app launcher, the tenant and environment cue, and in heavy tools a status bar. In an estate of several applications the shell belongs to the estate rather than to any one app, and it is what carries a user between tools. Use when designing a top bar, an app switcher, a tenant selector, an environment cue, a status bar, or navigation between separate tools behind one login. For the locale, currency and unit controls the shell carries, .
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add dembrandt/dembrandt-skills/app-shell@git:20260825.c784401mdr add dembrandt/dembrandt-skills/app-shell@sha256:18406f1717155348Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_uwb5ggx6dwuhvjig)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7833 bytes)
- 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
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
dembrandt/dembrandt-skills · 54 stars · license MIT · pushed 2026-09-15 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uwb5ggx6dwuhvjig GET https://markdownregistry.com/api/v1/resolve?ref=dembrandt/dembrandt-skills/app-shell GET https://markdownregistry.com/api/v1/blob/18406f1717155348383b55576e455a01bdb932fb266fdf43426fa4007199a25e
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.