create-app SKILL.md skillA

create-app from sethgammon/citadel is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sethgammon/citadel/create-app@git:20260611.0f3f8e7

Pins git:20260611.0f3f8e7 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sethgammon/citadel
Path
skills/create-app/SKILL.md
Versions recorded
4
Latest version
git:20260611.0f3f8e7, committed Jun 11, 2026
First version recorded
Mar 29, 2026
Size
6,830 bytes
Repository stars
929
License
MIT

End-to-end app creation from a single description. Five tiers: blank project, guided, templated, fully generated, or feature addition to existing codebase. Routes through PRD, architecture, and Archon campaign with verification at every step.

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

# /create-app — From Description to Verified Application

## Orientation

**Use when:** building a new app from scratch -- full scaffold, design system, and feature set from a single description.
**Don't use when:** adding a feature to an existing app (use /marshal or /archon); generating a single component (use /scaffold).

## Tier Detection

Use when the user wants to create an app, add a feature, or scaffold a project. Classify the input into one of five tiers:

### Tier 1: Blank Project
- Trigger: "create a blank project", "new project", "scaffold"
- Action: Run /scaffold with stack detection. No PRD, no architecture.

### Tier 2: Guided
- Trigger: "I want to build...", "help me create...", description with questions
- Action: /prd → user approves → /architect → user approves → /archon
- Human checkpoints: after PRD, after architecture, before each major phase.

### Tier 3: Templated
- Trigger: Describes a well-known app type ("a todo app", "a blog", "a dashboard with auth")
- Action: Load template PRD if available → /architect with template defaults → /archon
- Template detection: check `.planning/_templates/app-types/` for matching templates.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sethgammon/citadel/create-app@sha256:30de1a93eddf65fc

The line at the top of this page pins the label git:20260611.0f3f8e7, 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_hy3rs5gbhovxfbbi.svg)](https://markdownregistry.com/a/art_hy3rs5gbhovxfbbi)

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

Versions

The registry has recorded 4 versions of this file, between Mar 29, 2026 and Jun 11, 2026, about one every 25 days.

versioncommittedcommitsizeaudit
git:20260611.0f3f8e7 latest2026-06-11 0f3f8e7 6,830 BA view · diff
git:20260611.a6479532026-06-11 a647953 6,817 BA view · diff
git:20260503.631b94d2026-05-03 631b94d 6,668 BA view · diff
git:20260329.6c378a22026-03-29 6c378a2 10,638 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 (6830 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

sethgammon/citadel · 929 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hy3rs5gbhovxfbbi
GET https://markdownregistry.com/api/v1/resolve?ref=sethgammon/citadel/create-app
GET https://markdownregistry.com/api/v1/blob/30de1a93eddf65fceea69c6732273b2243b67332eb12888edb7c51ece90c39fd

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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