Agent skill · Dev tools · wondelai

create-app agent skill by wondelai

Guides a raw app idea to a validated, cleanly architected first version that ships on a sustainable cadence, orchestrating ten skills phase by phase.

View on GitHub Read SKILL.md

At a glance

Publisher	wondelai
Repository	wondelai/skills (65 listed skills)
Category	Developer Tools and Frameworks
License	MIT
Last commit	September 10, 2026 (repository)
SKILL.md	233 lines, 3,594 words
Bundled files	2 files, including references
Quality score	76/100 · C Passes all seven graded checks
Security scan	Not scanned
README badge	Get the listing badge and raise the score

Before you install

Read from the skill's files at the directory's October 19, 2026 snapshot: what ships with it, what its code reads, and the terms it is published under.

Bundled scripts: none.
License: MIT, an open-source or open-content license.

Install create-app

The skills CLI works with Claude Code, Codex, Cursor and other agents; the other routes copy the folder by hand.

Skills CLI

npx skills add https://github.com/wondelai/skills/tree/main/create-app

Claude Code, project-level copy

tmp="$(mktemp -d)"
git clone --depth 1 https://github.com/wondelai/skills.git "$tmp/repo"
mkdir -p .claude/skills
cp -R "$tmp/repo/"create-app .claude/skills/
rm -rf "$tmp"

Codex installer

python3 ~/.codex/skills/.system/skill-installer/scripts/install-skill-from-github.py \
    --repo wondelai/skills \
    --path create-app

wondelai/skills is third-party code. Read SKILL.md and any bundled scripts before you install it.

How the author describes it

Guided journey from a raw app idea to a validated, cleanly architected first version that ships on a sustainable cadence. Orchestrates ten skills phase by phase - lean-startup, design-sprint, clean-architecture, domain-driven-design, clean-code, pragmatic-programmer, system-design, ios-hig-design, 37signals-way, software-design-philosophy - asking the user questions at every decision point and recording results in the project docs/ folder (PRODUCT.md, ARCHITECTURE.md, EXPERIMENTS.md, CREATE-APP-PLAN.md) so the journey resumes across sessions. Use when the user wants to build a new app, validate an idea before writing code, architect an MVP that will not need a rewrite, or says 'help me build my app the right way'. App already exists: use improve-app or grow-app. Business idea not yet validated: run create-business first. Marketing site only: use create-website. Architecture-only question: design-code-architecture. For one framework in isolation, invoke that skill directly.

From the description field of SKILL.md. Agents read this line to decide when to load the skill.

Sections in SKILL.md

Core Principle
Journey Map
Operating Rules
Intake
Phases
Phase 1 — Validate the riskiest assumption (lean-startup)
Phase 2 — De-risk the core experience (design-sprint)
Phase 3 — Draw the boundaries (clean-architecture)
Phase 4 — Model the domain (domain-driven-design)
Phase 5 — Write code to be read (clean-code)
Phase 6 — Install the meta-disciplines (pragmatic-programmer)
Phase 7 — Size it honestly (system-design)
Phase 8 — Make it feel native (ios-hig-design) — iOS only
Phase 9 — Ship on a cadence (37signals-way)
Phase 10 — Treat complexity as the enemy (software-design-philosophy)
Optional Phases

Files in the skill folder

SKILL.md
references/artifact-templates.md

Suede Skill Check: 76/100 · C

Report snapshot · October 19, 2026 · graded-v2

The rubric totals 100 points; published scores are capped at 99. Security scan: not scanned.

Source revision: c172996495be. Report version 8c5963c07b71. Badge URLs follow the latest listing; save the report to keep this version.

Download report · Request a fresh review

What to review next

Description length: 1 of 5 points. 5 for 150–600 characters; 3 for 100–900; 1 for 50–1,024.
Boundary clause: 0 of 4 points. 4 when the description says when not to use the skill (“Not for …”, “Do not use …”, “Use … instead”).
Instruction depth: 4 of 7 points. 7 for a SKILL.md body of 500–3,000 words; 4 for 250–4,500; 1 for 100 or more.

Add declarations and bundled files when they describe the skill’s actual needs. Update the source, then request a fresh review with the changed commit or PR.

create-app passes the required frontmatter check and all seven graded checks, which cover the SKILL.md format, a declared license and a commit in the last year. Those checks earn 56 of the score’s points; the rest come from description quality, instruction depth, bundled files, maintenance and curated-list citations. How the score works.

See the checks and points

Check	Result
Frontmatter parses and declares a name and a description	Pass
Name uses lowercase letters, digits and hyphens, 64 characters or fewer	Pass
Name matches the skill's folder name	Pass
Description is between 50 and 1,024 characters	Pass
Description says when an agent should use the skill	Pass
SKILL.md body is 500 lines or fewer	Pass
A license is declared in the frontmatter or the repository	Pass
Repository has a commit in the last 12 months	Pass

Score component	Points
Structural checks	56 of 56
Description length	1 of 5
Boundary clause	0 of 4
Example request	3 of 3
Instruction depth	4 of 7
Reference files	3 of 3
Bundled scripts	0 of 2
Recent maintenance	6 of 9
Curated-list citations	3 of 7
Tool permissions declared	0 of 2
Compatibility declared	0 of 2

Show the listing and raise the score

create-app is listed with 76/100 · C. This badge links to its Suede listing. Skills scoring 80–99 add a numeric and a letter quality shield; the largest open points for create-app are boundary clause (4), description length (4) and instruction depth (3). Send your repository and the points you want to raise, then request a fresh review after updating the skill.

Markdown

[![Suede Skills Directory: listed](https://skills.suedeai.ai/directory/badge.svg)](https://skills.suedeai.ai/directory/wondelai/skills/create-app/)

HTML

<a href="https://skills.suedeai.ai/directory/wondelai/skills/create-app/"><img src="https://skills.suedeai.ai/directory/badge.svg" alt="Suede Skills Directory: listed" height="20"></a>