144-java-data-oriented-programming SKILL.md skillA
144-java-data-oriented-programming from jabrena/plinth is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jabrena/plinth/144-java-data-oriented-programming@v0.19.0Pins v0.19.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jabrena/plinth
- Path
skills/144-java-data-oriented-programming/SKILL.md- Versions recorded
- 6
- Latest version
- v0.19.0, committed Sep 26, 2026
- First version recorded
- Apr 26, 2026
- Size
- 3,920 bytes
- Repository stars
- 461
- License
- Apache-2.0
Use when you need to apply data-oriented programming best practices in Java — including separating code (behavior) from data structures using records, designing immutable data with pure transformation functions, keeping data flat and denormalized with ID-based references, starting with generic data structures converting to specific types when needed, ensuring data integrity through pure validation functions, and creating flexible generic data access layers. This should trigger for requests…
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
# Java Data-Oriented Programming Best Practices Apply data-oriented programming in Java: separate data from behavior with records, use immutable data structures, pure functions for transformations, flat denormalized structures with ID references, generic-to-specific type conversion when needed, pure validation functions, and flexible generic data access layers. All transformations should be explicit, traceable, and composed of clear pure functional steps. **What is covered in this Skill?** - Separation of concerns: data structures (records, POJOs) vs behavior (utility classes, services) - Immutability: records, final fields, transformations produce new instances - Pure data transformations: functions depending only on inputs, no side effects - Flat and denormalized data: ID references instead of deep nesting - Generic until specific: Map<String,Object> for dynamic data, convert to records when processing - Data integrity: pure validation functions returning validation results - Flexible generic data access: generic CRUD interfaces, interchangeable implementations …
Read the whole file at its exact version.
How to install
mdr add jabrena/plinth/144-java-data-oriented-programming@sha256:f51c561900b8f343The line at the top of this page pins the label v0.19.0, 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_qqetwf4yqtleuyoi)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Apr 26, 2026 and Sep 26, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.19.0 latest | 2026-09-26 | 9569c35 | 3,920 B | A | view · diff |
| v0.18.0 | 2026-08-01 | 26b0e71 | 3,920 B | A | view · diff |
| v0.17.0 | 2026-07-10 | aaee915 | 3,920 B | A | view · diff |
| v0.16.0 | 2026-06-15 | b73c9d3 | 3,822 B | A | view · diff |
| v0.15.0 | 2026-05-29 | a800339 | 3,822 B | A | view · diff |
| v0.15.0-SNAPSHOT | 2026-04-26 | 819f349 | 3,831 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 (3920 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
jabrena/plinth · 461 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qqetwf4yqtleuyoi GET https://markdownregistry.com/api/v1/resolve?ref=jabrena/plinth/144-java-data-oriented-programming GET https://markdownregistry.com/api/v1/blob/f51c561900b8f343d37ab6e134ada1bd42b18f947b779d132a6ac197702ffd0d
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.