implementation SKILL.md skillA

implementation from toongri/oh-my-toong-playground is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add toongri/oh-my-toong-playground/implementation@git:20260401.829a4a9

Pins git:20260401.829a4a9 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
toongri/oh-my-toong-playground
Path
projects/toong-java-spring-template/skills/implementation/SKILL.md
Versions recorded
1
Latest version
git:20260401.829a4a9, committed Apr 1, 2026
Size
10,434 bytes
Repository stars
25
License
MIT

Use when implementing any feature, adding code, or modifying existing code in this Java/Spring project. Triggers on write operations like adding entities, services, facades, controllers, or any domain logic.

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

# Implementation Guide

## Overview

This project follows **responsibility assignment**, **object collaboration**, and **expression consistency**.

## Quick Decision

```dot
digraph layer {
    "Single domain?" [shape=diamond];
    "Service" [shape=box];
    "Multiple domains?" [shape=diamond];
    "Facade" [shape=box];
    "HTTP?" [shape=diamond];
    "Controller" [shape=box];

    "Single domain?" -> "Service" [label="yes"];
    "Single domain?" -> "Multiple domains?" [label="no"];
    "Multiple domains?" -> "Facade" [label="yes"];
    "Multiple domains?" -> "HTTP?" [label="no"];
    "HTTP?" -> "Controller" [label="yes"];
}
```

## Critical Rules (Non-negotiable)

### 1. Controller Flow

**ALWAYS**: `Controller -> Facade -> Service` (never `Controller -> Service`)

```java
@RestController
public class ProductV1Controller implements ProductV1ApiSpec {

    private final ProductFacade productFacade;  // Facade, NOT Service

    public ProductV1Controller(ProductFacade productFacade) {
        this.productFacade = productFacade;
    }
}
```

See `references/layer-boundaries.md` for detailed patterns.

### 2. Layer Responsibilities
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add toongri/oh-my-toong-playground/implementation@sha256:e57562681eb48512

The line at the top of this page pins the label git:20260401.829a4a9, 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_ngvc5vu6hmv4doqd.svg)](https://markdownregistry.com/a/art_ngvc5vu6hmv4doqd)

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

Versions

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

versioncommittedcommitsizeaudit
git:20260401.829a4a9 latest2026-04-01 829a4a9 10,434 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 (10434 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

toongri/oh-my-toong-playground · 25 stars · license MIT · pushed 2026-10-22 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ngvc5vu6hmv4doqd
GET https://markdownregistry.com/api/v1/resolve?ref=toongri/oh-my-toong-playground/implementation
GET https://markdownregistry.com/api/v1/blob/e57562681eb48512f475b25d63b1a26813564464302be6fed46b07ef777e9a4c

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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code-review SKILL.md skill
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collect-jd SKILL.md skill
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Every file in toongri/oh-my-toong-playground

Other files named implementation

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