Home / ghosteken / agent-harness · GitHub

app-builder SKILL.md skillA

app-builder from ghosteken/agent-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add ghosteken/agent-harness/app-builder@git:20260721.efafd9c

Pins git:20260721.efafd9c in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: ghosteken/agent-harness
Path: archive/skills-community/app-builder/SKILL.md
Versions recorded: 1
Latest version: git:20260721.efafd9c, committed Jul 21, 2026
Size: 3,595 bytes
Repository stars: 4
License: MIT

Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.

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

# App Builder - Application Building Orchestrator

> Analyzes user's requests, determines tech stack, plans structure, and coordinates agents.

## 🎯 Selective Reading Rule

**Read ONLY files relevant to the request!** Check the content map, find what you need.

| File | Description | When to Read |
|------|-------------|--------------|
| `project-detection.md` | Keyword matrix, project type detection | Starting new project |
| `tech-stack.md` | 2025 default stack, alternatives | Choosing technologies |
| `agent-coordination.md` | Agent pipeline, execution order | Coordinating multi-agent work |
| `scaffolding.md` | Directory structure, core files | Creating project structure |
| `feature-building.md` | Feature analysis, error handling | Adding features to existing project |
| `templates/SKILL.md` | **Project templates** | Scaffolding new project |

---

## 📦 Templates (13)

Quick-start scaffolding for new projects. **Read the matching template only!**

| Template | Tech Stack | When to Use |
|----------|------------|-------------|
| [nextjs-fullstack](templates/nextjs-fullstack/TEMPLATE.md) | Next.js + Prisma | Full-stack web app |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add ghosteken/agent-harness/app-builder@sha256:0942480781722413

The line at the top of this page pins the label git:20260721.efafd9c, 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](https://markdownregistry.com/badge/art_xjtym3z6g7uo3uhk.svg)](https://markdownregistry.com/a/art_xjtym3z6g7uo3uhk)

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

Versions

The registry has recorded 1 version of this file, committed on Jul 21, 2026.

version	committed	commit	size	audit
git:20260721.efafd9c latest	2026-07-21	efafd9c	3,595 B	A	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 (3595 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

ghosteken/agent-harness · 4 stars · license MIT · pushed 2026-10-13 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xjtym3z6g7uo3uhk
GET https://markdownregistry.com/api/v1/resolve?ref=ghosteken/agent-harness/app-builder
GET https://markdownregistry.com/api/v1/blob/09424807817224132642891003d3410db7d139650bdba263b7631d6613e82c74

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.

More from ghosteken/agent-harness

AGENTS.md AGENTS.md file

ghosteken/agent-harness · AGENTS.md

git:20261008.1dbcd11 · audit A · 4 stars

CLAUDE.md CLAUDE.md file

ghosteken/agent-harness · CLAUDE.md

git:20261008.1dbcd11 · audit A · 4 stars

2slides-ppt-generator SKILL.md skill

ghosteken/agent-harness · archive/skills-community/2slides-ppt-generator/SKILL.md · AI-powered presentation generation via the 2slides API — create slides from text, match a reference image style…