# Create App

End-to-end app creation from a single description.

- Repository: https://github.com/SethGammon/Citadel (927 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-10-30
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add SethGammon/Citadel --skill create-app -g -a claude-code -y`
Codex: `npx skills add SethGammon/Citadel --skill create-app -g -a codex -y`
Cursor: `npx skills add SethGammon/Citadel --skill create-app -g -a cursor -y`
Gemini CLI: `npx skills add SethGammon/Citadel --skill create-app -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add SethGammon/Citadel`

## Description

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.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# /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.
  If no template matches, fall through to Tier 2.

### Tier 4: Generated (Full Autonomy)
- Trigger: "build me [detailed description]", "create [app] and deploy it"
- Action: /prd (minimal questions) → /architect (auto-approve if confidence high) → /archon with self-correction loop
- Human checkpoints: after PRD only. Architecture and execution are autonomous.
- Safety: all Archon self-correction mechanisms active. Direction alignment every
  2 phases. Quality spot-checks every phase. Circuit breakers armed.

The rest: https://github.com/SethGammon/Citadel/blob/HEAD/skills/create-app/SKILL.md