creating-domain-service SKILL.md skillA

creating-domain-service from maiobarbero/laravel-boost-ddd is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add maiobarbero/laravel-boost-ddd/creating-domain-service@git:20260922.7ecf42a

Pins git:20260922.7ecf42a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
maiobarbero/laravel-boost-ddd
Path
resources/boost/skills/creating-domain-service/SKILL.md
Versions recorded
2
Latest version
git:20260922.7ecf42a, committed Sep 22, 2026
First version recorded
Sep 22, 2026
Size
1,352 bytes
Repository stars
11
License
MIT

Create or refactor business calculations and rules spanning multiple domain objects when no single entity or value object naturally owns the behavior. Use when assessing a growing service class.

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

# Domain services

First look for a model or Value Object that naturally owns the behavior. Create `App\Domain\<Capability>\Services` only when a cohesive business operation has no such owner.

For example, `OrderCancellationFee` may calculate a fee using an order and a cancellation policy. It computes a business result; `CancelOrder` authorizes, coordinates, saves, and handles follow-up work.

Avoid generic `OrderService`, `UserService`, or `PaymentService` containers. Do not extract a service merely because a method is long or used twice.

Domain services must not depend on Application, Infrastructure, or delivery code. If a business calculation genuinely needs an external capability, define its contract under `App\Domain\<Capability>\Contracts`, implement it in Infrastructure, and bind it in a Laravel service provider. Do not hide an adapter lookup behind a facade or container call.

Use domain exceptions for rejected rules. Leave persistence coordination and transactions to Application. Direct collaboration with models in other capabilities is allowed within the same bounded context.

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add maiobarbero/laravel-boost-ddd/creating-domain-service@sha256:7afc0c51be504cf2

The line at the top of this page pins the label git:20260922.7ecf42a, 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_iddixsiniatzkagw.svg)](https://markdownregistry.com/a/art_iddixsiniatzkagw)

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

Versions

The registry has recorded 2 versions of this file, all committed on Sep 22, 2026.

versioncommittedcommitsizeaudit
git:20260922.7ecf42a latest2026-09-22 7ecf42a 1,352 BA view · diff
git:20260922.00e7bbe2026-09-22 00e7bbe 709 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 (1352 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

maiobarbero/laravel-boost-ddd · 11 stars · license MIT · pushed 2026-09-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_iddixsiniatzkagw
GET https://markdownregistry.com/api/v1/resolve?ref=maiobarbero/laravel-boost-ddd/creating-domain-service
GET https://markdownregistry.com/api/v1/blob/7afc0c51be504cf2cdd56f1cbea79a62ebb314443b6cd3769fe3bce99673cb34

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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