123-java-design-patterns SKILL.md skillA
123-java-design-patterns 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/123-java-design-patterns@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/123-java-design-patterns/SKILL.md- Versions recorded
- 4
- Latest version
- v0.19.0, committed Sep 26, 2026
- First version recorded
- Jun 15, 2026
- Size
- 4,445 bytes
- Repository stars
- 461
- License
- Apache-2.0
Use when you need to select, review, or implement Java design and integration patterns — including classic Java design patterns, REST API patterns, Kafka and event-driven patterns, database and persistence patterns, and cross-cutting integration patterns. This should trigger for requests such as Apply Java design patterns; Review REST API patterns; Design Kafka event-driven patterns; Improve database persistence patterns; Add resilient integration patterns. Part of Plinth Toolkit.
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 Design and Integration Patterns Guide Java developers in selecting patterns by problem signal, implementation context, and trade-off rather than by pattern name alone. **What is covered in this Skill?** - Classic Java design patterns for application code: creational, structural, and behavioral patterns - REST API patterns for resource design, contracts, idempotency, versioning, and error handling - Kafka and event-driven patterns for event schemas, partitioning, idempotency, retries, outbox, and sagas - Database and persistence patterns for repositories, transactions, aggregates, locking, migrations, and read models - Cross-cutting integration patterns for anti-corruption layers, resilience, observability, and reliable message boundaries **Scope:** Use this skill to explain, review, and implement practical patterns in Java systems. Prefer simple code first; introduce a pattern only when it reduces real complexity, protects a boundary, improves testability, or makes change safer. ## Constraints Pattern guidance must be problem-led, concrete, and safe to apply in Java projects. - **PROBLEM FIRST**: Identify the design pressure before naming or applying a pattern …
Read the whole file at its exact version.
How to install
mdr add jabrena/plinth/123-java-design-patterns@sha256:a04c950cd54ec897The 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_tt6igdoxw23g4axg)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 15, 2026 and Sep 26, 2026, about one every 34 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.19.0 latest | 2026-09-26 | 9569c35 | 4,445 B | A | view · diff |
| v0.18.0 | 2026-08-01 | 26b0e71 | 4,445 B | A | view · diff |
| v0.17.0 | 2026-07-10 | aaee915 | 4,445 B | A | view · diff |
| v0.16.0 | 2026-06-15 | b73c9d3 | 4,456 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 (4445 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_tt6igdoxw23g4axg GET https://markdownregistry.com/api/v1/resolve?ref=jabrena/plinth/123-java-design-patterns GET https://markdownregistry.com/api/v1/blob/a04c950cd54ec89762b10f4a77182c9ec6087d5d7eafc3e429cb174426d1f913
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.