java-code-review SKILL.md skillA
java-code-review from decebals/claude-code-java is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add decebals/claude-code-java/java-code-review@git:20260828.702770aPins git:20260828.702770a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- decebals/claude-code-java
- Path
skills/java-code-review/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260828.702770a, committed Aug 28, 2026
- Size
- 10,020 bytes
- Repository stars
- 759
- License
- MIT
Systematic code review for Java with null safety, exception handling, concurrency, and performance checks. Use when user says "review code", "check this PR", "code review", or before merging changes.
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 Code Review Skill
Systematic code review checklist for Java projects.
## When to Use
- User says "review this code" / "check this PR" / "code review"
- Before merging a PR
- After implementing a feature
## Review Strategy
1. **Quick scan** - Understand intent, identify scope
2. **Checklist pass** - Go through each category below
3. **Summary** - List findings by severity (Critical → Minor)
## Output Format
```markdown
## Code Review: [file/feature name]
### Critical
- [Issue description + line reference + suggestion]
### Improvements
- [Suggestion + rationale]
### Minor/Style
- [Nitpicks, optional improvements]
### Good Practices Observed
- [Positive feedback - important for morale]
```
---
## Review Checklist
### 1. Null Safety
**Check for:**
```java
// ❌ NPE risk
String name = user.getName().toUpperCase();
// ✅ Safe
String name = Optional.ofNullable(user.getName())
.map(String::toUpperCase)
.orElse("");
// ✅ Also safe (early return)
if (user.getName() == null) {
return "";
}
return user.getName().toUpperCase();
```
**Flags:**
- Chained method calls without null checks
- Missing `@Nullable` / `@NonNull` annotations on public APIs
…Read the whole file at its exact version.
How to install
mdr add decebals/claude-code-java/java-code-review@sha256:97a6ac61f19d54e3The line at the top of this page pins the label git:20260828.702770a, 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_v6xmjoiolvjv32vv)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 28, 2026.
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 (10020 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
decebals/claude-code-java · 759 stars · license MIT · pushed 2026-09-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_v6xmjoiolvjv32vv GET https://markdownregistry.com/api/v1/resolve?ref=decebals/claude-code-java/java-code-review GET https://markdownregistry.com/api/v1/blob/97a6ac61f19d54e387767fc6a30427a614d7364c4804fb7d5e424173cb796c11
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.