creating-value-object SKILL.md skillA

creating-value-object 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-value-object@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-value-object/SKILL.md
Versions recorded
2
Latest version
git:20260922.7ecf42a, committed Sep 22, 2026
First version recorded
Sep 22, 2026
Size
1,461 bytes
Repository stars
11
License
MIT

Create or change immutable business values with meaningful invariants, equality, or behavior, such as order numbers and money. Use when primitive values obscure domain rules; avoid wrapping every scalar.

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

# Value Objects

Use `App\Domain\<Capability>\ValueObjects` and the domain name, such as `OrderNumber` or `Money`, without a `ValueObject` suffix.

Value Objects are immutable by default and normally final. Validate invariants at construction, preserve them through operations, and compare by value when equality matters. Use specific domain exceptions for invalid values. Do not add HTTP validation or presentation dependencies.

For the order example, an `OrderNumber` is useful if it enforces a business format or supports meaningful operations. A numeric database ID alone does not justify a wrapper. A cancellation fee may justify Money with explicit currency and precision semantics; do not invent currency conversion rules or use floating-point arithmetic for exact money.

Reuse existing compatible value types and Eloquent casts. When persisting a Value Object, define and test its storage round trip only if the use case needs it. Avoid introducing a new package, generic Value Object base class, or custom casting framework automatically.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add maiobarbero/laravel-boost-ddd/creating-value-object@sha256:16f4d22c834347d9

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_6r47d66hh4ljrpop.svg)](https://markdownregistry.com/a/art_6r47d66hh4ljrpop)

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 1,461 BA view · diff
git:20260922.00e7bbe2026-09-22 00e7bbe 582 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 (1461 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_6r47d66hh4ljrpop
GET https://markdownregistry.com/api/v1/resolve?ref=maiobarbero/laravel-boost-ddd/creating-value-object
GET https://markdownregistry.com/api/v1/blob/16f4d22c834347d90fd3192156bce2a43a6a42dbc5d408a189d2a7da9c8144c4

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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