ai-prototype SKILL.md skillB
ai-prototype from arcasilesgroup/ai-engineering is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arcasilesgroup/ai-engineering/ai-prototype@git:20260926.b0fd9cfPins git:20260926.b0fd9cf in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- arcasilesgroup/ai-engineering
- Path
skills/ai-prototype/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260926.b0fd9cf, committed Sep 26, 2026
- Size
- 6,216 bytes
- Repository stars
- 62
- License
- Apache-2.0
Build a single-file, clickable HTML prototype of a UI screen or flow, following the design directions given in the request. Use when the user asks to prototype, mock up, or sketch a UI (e.g. "/ai-prototype order list, dense, neutral palette", "mock up the settings page").
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Prototype Build a static HTML prototype of the UI the user asked for. It's for looking at and clicking through, not production code. **If you're running as a subagent** (for example, launched by `/ai-orchestrator`), you can't launch subagents. Do the steps marked "subagent" yourself, skip `open`, and return only the file path and your assumptions. ## 1. Gather the design directions Use these sources, highest priority first: 1. **The request itself:** layout, tone, palette, density, references, anything the user said about the look. 2. **Project design sources, if they exist:** `.ai-engineering/DESIGN.md`, and the global styles/tokens file named in the **Project config** section of `AGENTS.md` (colors, fonts, radii). Use them so the prototype looks like the real app. 3. **Domain:** Project config → *Domain* and *Roles*, plus `.ai-engineering/PRD.html`. Make the fake data realistic for that domain: real-looking names, entities, dates, amounts and statuses. Role-dependent UI follows the roles listed there. …
Read the whole file at its exact version.
How to install
mdr add arcasilesgroup/ai-engineering/ai-prototype@sha256:ffdd61118dd7323bThe line at the top of this page pins the label git:20260926.b0fd9cf, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_6lrkwjqrm3qchvvs)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 26, 2026.
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6216 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
arcasilesgroup/ai-engineering · 62 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6lrkwjqrm3qchvvs GET https://markdownregistry.com/api/v1/resolve?ref=arcasilesgroup/ai-engineering/ai-prototype GET https://markdownregistry.com/api/v1/blob/ffdd61118dd7323b593aebf8ef7da01b71f8c0f5f03b9362e0c9688bd15d199b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.