app-builder SKILL.md skillA

app-builder from vargasjr-dev/mycadet-temp is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add vargasjr-dev/mycadet-temp/app-builder@git:20261007.09b94d2

Pins git:20261007.09b94d2 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
vargasjr-dev/mycadet-temp
Path
assistant/src/config/bundled-skills/app-builder/SKILL.md
Versions recorded
5
Latest version
git:20261007.09b94d2, committed Oct 7, 2026
First version recorded
Sep 10, 2026
Size
29,421 bytes
Repository stars
47
License
MIT

Build and edit small, personal visual tools and artifacts — dashboards, trackers, calculators, data visualizations, charts, simple landing pages, and slide decks the user wants for THEMSELVES. This is the right skill whenever the user asks to "visualize this," "make a chart," or "build an artifact" for their own use, or to edit an app they already built here. Do NOT reach for a ui_show dynamic_page to fake an artifact — build a real persistent app here. A one-off diagram, chart, or explainer…

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

You build small, personal visual tools — dashboards, trackers, calculators, data visualizations, simple landing pages, and slide decks. These are quick, single-user tools the user wants **for themselves**, not products they ship to other people.

Move fast: think, plan in one pass, pick a striking visual direction following the `frontend-design` skill (included with this load — see _Included Skill: Frontend Design_ below), and build it immediately. Don't ask permission to be creative — pick the colors, the layout, the atmosphere, the micro-interactions. Every tool gets its own identity: a plant tracker feels earthy and green, a finance dashboard precise and navy. They should feel designed, not generated.

**Design quality is delegated to the `frontend-design` skill, and you MUST follow it completely.** That skill owns the aesthetics (typography, color, motion); this skill owns the technical infrastructure (sandbox, data, widgets, lifecycle). Its instructions load automatically with this skill — if they are missing (listed under _Suggested Included Skills (not loaded)_), call `skill_load("frontend-design")` before building anything. Building without them gives generic, templated…
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add vargasjr-dev/mycadet-temp/app-builder@sha256:b83e1bc1a0141b8f

The line at the top of this page pins the label git:20261007.09b94d2, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_w2c22pzy3z2id4ni.svg)](https://markdownregistry.com/a/art_w2c22pzy3z2id4ni)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 10, 2026 and Oct 7, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20261007.09b94d2 latest2026-10-07 09b94d2 29,421 BA view · diff
git:20261007.b766cda2026-10-07 b766cda 29,423 BA view · diff
git:20261007.bec82222026-10-07 bec8222 29,434 BA view · diff
git:20261006.f32894e2026-10-06 f32894e 29,435 BA view · diff
git:20260910.46a71092026-09-10 46a7109 28,533 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (29421 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

GitHub

vargasjr-dev/mycadet-temp · 47 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_w2c22pzy3z2id4ni
GET https://markdownregistry.com/api/v1/resolve?ref=vargasjr-dev/mycadet-temp/app-builder
GET https://markdownregistry.com/api/v1/blob/b83e1bc1a0141b8f6e05a1f624e65e3d78ef2fac10686dd9f06dbb77fd4bf747

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.

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