jabrena/plinth · skills/142-java-functional-programming/SKILL.md

142-java-functional-programming skillA

142-java-functional-programming is agent-read markdown (skill) from jabrena/plinth: Use when you need to apply functional programming principles in Java — including writing immutable objects and Records, pure functions, functional interfaces, lambda expressions, Stream API pipelines, Optional for null safety, function composition, higher-order functions, pattern matching for instanceof and switch, sealed classes/interfaces for controlled hierarchies, Stream Gatherers for custom operations, currying/partial application, effect boundary separation, and concurrent-safe functional .

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add jabrena/plinth/142-java-functional-programming@v0.18.0
Exact content
mdr add jabrena/plinth/142-java-functional-programming@sha256:dc474047960e1848

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_xe42d7ekrc63q4fa.svg)](https://markdownregistry.com/a/art_xe42d7ekrc63q4fa)

0 badge views in 30 days

Versions

versioncommittedcommitsizeaudit
v0.18.0 latest2026-08-01 26b0e71 4,366 BA view · diff
v0.17.02026-07-10 aaee915 4,366 BA view · diff
v0.16.02026-06-15 b73c9d3 4,167 BA view · diff
v0.15.02026-05-29 a800339 4,167 BA view · diff
v0.15.0-SNAPSHOT2026-04-26 819f349 4,176 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (4366 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

jabrena/plinth · 440 stars · license Apache-2.0 · pushed 2026-09-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xe42d7ekrc63q4fa
GET https://markdownregistry.com/api/v1/resolve?ref=jabrena/plinth/142-java-functional-programming
GET https://markdownregistry.com/api/v1/blob/dc474047960e18488feb482e367ef052a6007ddaf3110716d94ba8bd64623b3a

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.