java-programmer SKILL.md skillA
java-programmer from pyroxin/opinionated-claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pyroxin/opinionated-claude-skills/java-programmer@git:20251129.c7223eePins git:20251129.c7223ee in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pyroxin/opinionated-claude-skills
- Path
opinionated-java-ecosystem/skills/java-programmer/SKILL.md- Versions recorded
- 1
- Latest version
- git:20251129.c7223ee, committed Nov 29, 2025
- Size
- 49,526 bytes
- Repository stars
- 9
- License
- EPL-2.0
Java-specific tooling, documentation standards, testing practices, and modern idioms. Use when working with Java code or Java-based projects on the JVM.
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 Programmer ## Purpose This skill provides guidance on Java-specific tooling, documentation standards, testing practices, and modern Java idioms. Java is a statically-typed, object-oriented language with a massive ecosystem and strong backwards compatibility guarantees. This skill focuses on navigating the Java ecosystem effectively, writing maintainable Java code, and applying functional programming concepts within Java's constraints. ## When to Use This Skill Use this skill when: - Working with Java codebases (any version, but especially Java 8+) - Making decisions about build tools, testing frameworks, or dependencies - Writing Javadoc documentation - Writing JUnit tests - Applying functional programming patterns in Java - Navigating the JVM ecosystem (choosing between JVM languages) <core_philosophy> ## Core Philosophy **For foundational software engineering principles, see the software-engineer skill. For OOP principles (SOLID, GoF patterns), see the object-oriented-programmer skill.** ### Java's Strengths and Constraints Java excels in specific contexts but has limitations compared to more modern languages. **Where Java shines:** …
Read the whole file at its exact version.
How to install
mdr add pyroxin/opinionated-claude-skills/java-programmer@sha256:5d1a7208063e6d7eThe line at the top of this page pins the label git:20251129.c7223ee, 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_7idekyjqedpdnpxl)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Nov 29, 2025.
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 (49526 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
pyroxin/opinionated-claude-skills · 9 stars · license EPL-2.0 · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7idekyjqedpdnpxl GET https://markdownregistry.com/api/v1/resolve?ref=pyroxin/opinionated-claude-skills/java-programmer GET https://markdownregistry.com/api/v1/blob/5d1a7208063e6d7e6cd05fca77c3b1621c42e704b2f14a800286484cf5d903ec
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.