value-objects-and-dtos SKILL.md skillA
value-objects-and-dtos from dev-toolings/superpowers-symfony is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dev-toolings/superpowers-symfony/value-objects-and-dtos@git:20261005.2187271Pins git:20261005.2187271 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dev-toolings/superpowers-symfony
- Path
content/skills/value-objects-and-dtos/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261005.2187271, committed Oct 5, 2026
- First version recorded
- Sep 17, 2026
- Size
- 1,576 bytes
- Repository stars
- 231
- License
- MIT
Design Value Objects for domain concepts and DTOs for data transfer with proper immutability (readonly) and validation.
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 And Dtos (Symfony) ## Use when - A domain concept with rules of its own (money, email, address) travels as raw scalars. - Data crosses a boundary: request input, API output, message payload. - Storing a value object inside a Doctrine entity. ## Default workflow 1. Decide: a value object for a domain concept with invariants, a DTO for data crossing a boundary. 2. Make it `readonly`, validate in the constructor, and fail fast. 3. Give value objects equality by value and operations that return new instances. 4. Persist value objects as Doctrine embeddables. 5. Keep input DTOs (validation constraints) apart from output DTOs (serializer attributes). ## Guardrails - No setters and no mutation: a change returns a new instance. - DTOs carry data only, with no behavior. - Never expose entities directly as API input or output. - Store money as an integer in minor units, never as a float. ## Progressive disclosure - Use this file for execution posture and risk controls. - Open references when deep implementation details are needed. ## Output contract - Value objects with their invariants and equality. - Input and output DTOs, and their mapping to and from entities. …
Read the whole file at its exact version.
How to install
mdr add dev-toolings/superpowers-symfony/value-objects-and-dtos@sha256:00eb560b0661ded4The line at the top of this page pins the label git:20261005.2187271, 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.
[](https://markdownregistry.com/a/art_yhnk2a7unrs7327a)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 17, 2026 and Oct 5, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.2187271 latest | 2026-10-05 | 2187271 | 1,576 B | A | view · diff |
| git:20261005.042befb | 2026-10-05 | 042befb | 1,185 B | A | view · diff |
| git:20260917.3d83f4c | 2026-09-17 | 3d83f4c | 1,214 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1576 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
dev-toolings/superpowers-symfony · 231 stars · license MIT · pushed 2026-10-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yhnk2a7unrs7327a GET https://markdownregistry.com/api/v1/resolve?ref=dev-toolings/superpowers-symfony/value-objects-and-dtos GET https://markdownregistry.com/api/v1/blob/00eb560b0661ded4abe23f55e8c0866f37850175d483760d8c20d45a20478e9c
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.