Home / imshaikot / app-preview-craft-skill · skills/app-preview-craft/SKILL.md · GitHub

app-preview-craft skillB

app-preview-craft is agent-read markdown (skill) from imshaikot/app-preview-craft-skill: Creates marketing visuals for an app from its screenshots and screen recordings: App Store and Google Play screenshot sets, social and Open Graph cards, 2D screen videos, 3D device mockup images and 3D device videos (iPhone, Galaxy, MacBook). Renders locally with headless Chrome, three.js, sharp and ffmpeg; 41 themes, every property configurable, your own .glb device models, plus a studio where the preview is the editor. Use when the user wants app store or play store screenshots, an app preview.

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.

What the file says

# app-preview-craft — store screenshots, social cards and 3D device videos

Everything this skill makes is a page (`stage/stage.html`) posed by a theme and captured by
headless Chrome: stills are screenshotted and finished by sharp, videos are rendered frame by
frame and piped into ffmpeg. The same page powers the preview studio, so what the user sees
there is exactly what the CLI exports.

## 0. Find the skill, set it up once

**Paths below are relative to the directory holding this `SKILL.md`.** Resolve it once and
prefix commands with it — `$SKILL` means that directory throughout:

```bash
SKILL=/absolute/path/to/app-preview-craft        # the folder with SKILL.md, scripts/, stage/
# not sure where it was installed? (skill folders, then the Claude Code plugin cache)
find ./.claude/skills ./.agents/skills ./.goose/skills ~/.claude/skills ~/.agents/skills \
     ~/.gemini/skills ~/.config/goose/skills ~/.claude/plugins \
     -path '*app-preview-craft*/scripts/cli.mjs' 2>/dev/null | head -1
```

Then check the machine. `--fix` runs `npm install` inside the skill when packages are missing:

```bash
node "$SKILL/scripts/doctor.mjs" --fix
```
…

Read the whole file at its exact version.

How to install

Latest version
mdr add imshaikot/app-preview-craft-skill/app-preview-craft@v0.2.3
Exact content
mdr add imshaikot/app-preview-craft-skill/app-preview-craft@sha256:f3ef9a806967691f

Pin 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_hcuhih4zaj5foibz.svg)](https://markdownregistry.com/a/art_hcuhih4zaj5foibz)

1 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
v0.2.3 latest2026-09-19 dfa02aa 24,077 BB view · diff
v0.2.22026-09-19 8221e96 24,077 BB view · diff
v0.2.12026-09-19 efbd7a5 24,077 BB view · diff
v0.2.12026-09-19 6f00d1d 17,862 BB view · diff
v0.2.02026-09-19 708d584 17,862 BB view · diff
v0.2.02026-09-17 0091904 17,583 BB view · diff
v0.1.02026-09-17 76e2784 17,583 BB view · diff
v0.1.02026-09-17 356ec9c 17,401 BB view · diff
v0.1.02026-09-16 9dc2cb6 17,124 BB view

Audit of the latest version

B  16 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: No link to a raw IP address (matched: http://127.0.0.1:4747)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (24077 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 script tag

Source

GitHub

imshaikot/app-preview-craft-skill · 6 stars · license NOASSERTION · pushed 2026-09-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hcuhih4zaj5foibz
GET https://markdownregistry.com/api/v1/resolve?ref=imshaikot/app-preview-craft-skill/app-preview-craft
GET https://markdownregistry.com/api/v1/blob/f3ef9a806967691f632da25b7ec35bddef28dda0569d4bea26317a707ad4b1e3

Your agent 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.

Browse by kind, by grade B, or by owner.