writing-java-kotlin SKILL.md skillA
writing-java-kotlin from alexei-led/cc-thingz is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add alexei-led/cc-thingz/writing-java-kotlin@git:20260930.289962fPins git:20260930.289962f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- alexei-led/cc-thingz
- Path
src/skills/writing-java-kotlin/SKILL.md- Versions recorded
- 6
- Latest version
- git:20260930.289962f, committed Sep 30, 2026
- First version recorded
- Jun 27, 2026
- Size
- 3,181 bytes
- Repository stars
- 38
- License
- MIT
Idiomatic modern Java and Kotlin JVM development. Use when writing `.java`,.
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 and Kotlin Development ## Build baseline - Read the wrapper properties, `settings.gradle*`/`build.gradle*`/`gradle.properties` or `pom.xml`, and CI before relying on version-specific behavior. - Use `./gradlew`/`./mvnw` when the repo has them; scope tests to the changed module (see testing.md). - The compile target is the declared Java toolchain and Kotlin `jvmToolchain`, not the shell's `JAVA_HOME`; without one, the running JDK compiles. - Toolchain, plugin, and dependency versions live in convention plugins, version catalogs, BOMs, or parent POMs, set once there. Raising the Java or Kotlin toolchain is a project-wide decision: ask, and change it in shared build config, not one module. - A request to use a preview feature is not approval to enable it: ask first, name a non-preview fallback, and, once approved, add `--enable-preview` to the build's compile and run/test tasks, not a local flag. Previews can be withdrawn between JDKs: string templates were withdrawn in JDK 23. …
Read the whole file at its exact version.
How to install
mdr add alexei-led/cc-thingz/writing-java-kotlin@sha256:4ea616531208affbThe line at the top of this page pins the label git:20260930.289962f, 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_cz2hx6jxfm22w3wc)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jun 27, 2026 and Sep 30, 2026, about one every 19 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260930.289962f latest | 2026-09-30 | 289962f | 3,181 B | A | view · diff |
| git:20260928.3135f26 | 2026-09-28 | 3135f26 | 2,826 B | A | view · diff |
| git:20260716.29b4d22 | 2026-07-16 | 29b4d22 | 4,522 B | A | view · diff |
| git:20260702.93f966d | 2026-07-02 | 93f966d | 4,525 B | B | view · diff |
| git:20260629.26ad5b3 | 2026-06-29 | 26ad5b3 | 4,548 B | B | view · diff |
| git:20260627.8f14d28 | 2026-06-27 | 8f14d28 | 3,838 B | B | 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 (3181 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
alexei-led/cc-thingz · 38 stars · license MIT · pushed 2026-10-25 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_cz2hx6jxfm22w3wc GET https://markdownregistry.com/api/v1/resolve?ref=alexei-led/cc-thingz/writing-java-kotlin GET https://markdownregistry.com/api/v1/blob/4ea616531208affb0dc45b45756a0f4d85181fa6becd206a7e901b441e888dc0
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.