java-core

Build the Java project — detects Maven or Gradle and runs a clean build with test execution

Run static analysis on the Java project — detects configured tools (Checkstyle, SpotBugs, PMD) and reports findings

Java system architect — designs project structure, module layout, class hierarchies, and applies architecture patterns for Java 8+ projects

Java build error resolver — diagnoses and fixes Maven, Gradle, and javac compilation errors with minimal code changes

Creates, lists, and manages Architecture Decision Records for Java projects. Use when user asks to "create an ADR", "document this decision", "write an architecture decision", "add ADR", "list decisions", "show ADRs", or "record this architectural choice".

Reviews Java REST API design including HTTP methods, status codes, naming, and versioning. Use when user asks to "review my API", "check REST design", "is this good REST", "review endpoints", "API design review", "check my controller", or "review HTTP API".

Reviews or implements Clean Architecture / Hexagonal Architecture (Ports & Adapters) and DDD tactical patterns for Java projects. Use when user asks to "apply clean architecture", "implement hexagonal architecture", "add ports and adapters", "apply DDD", "refactor to clean arch", "review architecture", or "add value objects".

Generates a Conventional Commits message for staged Java changes. Use when user asks to "write a commit message", "help me commit", "what should my commit say", "summarize my changes", "draft a commit", or "create commit message".

Reviews Java code for thread safety, race conditions, deadlocks, and Java 21 virtual thread compatibility. Use when user asks to "review concurrency", "is this thread safe", "check for race conditions", "concurrency issues", or "virtual thread compatible".

Detects GoF patterns in Java code or recommends the right pattern for a problem. Use when user asks to "what pattern is this", "detect design patterns", "suggest a pattern", "should I use factory", "which design pattern", or "recommend a pattern for".

Generates Javadoc comments for Java classes and methods. Use when user asks to "add javadoc", "document this class", "write documentation", "add comments", "generate docs", or "document this method".

Explains Java code in plain language including design patterns. Use when user asks to "explain this code", "what does this do", "help me understand", "walk me through this", or "how does this work".

Diagnoses and fixes Java compile errors, runtime exceptions, and stack traces. Use when user asks to "fix this error", "this won't compile", "I'm getting an exception", "debug this", or "build is failing".

Runs a holistic code health check scoring Security, Tests, Performance and Quality with A-F grades. Use when user asks to "check health", "score this project", "health check", "how good is this code", "overall assessment", or "code quality score".

Interactive Java version upgrade guide (8 to 11, 11 to 17, 17 to 21). Use when user asks to "migrate to Java 17", "upgrade to Java 21", "Java migration guide", "move from Java 11 to 17", or "what changed in Java 21".

Suggests and applies version-gated Java refactorings. Use when user asks to "refactor this", "clean up this code", "modernize this Java", "simplify this", "extract method", "improve this class", or "make this more idiomatic".

Reviews Java code for bugs, naming issues, code smells, and version-appropriate idioms. Use when user asks to "review this code", "check my Java", "look at this class", "find issues in", "code review", "what's wrong with this", or "review this file".

Checks Java code for SOLID principles violations with Java-specific patterns. Use when user asks to "check SOLID principles", "is this good OOP", "single responsibility", "SOLID violations", "open closed principle", or "dependency inversion".

4 hooks across 2 events