concurrency-review

Review Java concurrent code for thread safety, race conditions, and deadlocks.

23|7|Updated Feb 22, 2026
One-click install
npx skills add https://github.com/hzy970907/fish-claude-code --skill concurrency-review-hzy970907
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: concurrency-review
Source: https://github.com/hzy970907/fish-claude-code/tree/main/skills/concurrency-review
Command: npx skills add https://github.com/hzy970907/fish-claude-code --skill concurrency-review-hzy970907

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps developers identify and fix common concurrency bugs in Java applications, preventing hard-to-reproduce issues like race conditions and deadlocks.

Core Features & Use Cases

  • Thread Safety Analysis: Detects potential race conditions, deadlocks, and visibility issues in multi-threaded Java code.
  • Modern Concurrency Patterns: Reviews usage of Virtual Threads, CompletableFuture, and Spring's @Async.
  • Use Case: A developer has written a new multi-threaded service and wants to ensure it's robust before deploying. They use this Skill to get a comprehensive review of its concurrency aspects.

Quick Start

Use the concurrency-review skill to analyze the attached Java file 'OrderProcessor.java' for thread safety issues.

Frequently Asked Questions about concurrency-review

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I check my Java code for thread safety and race conditions?▼

Java thread safety analysis reviews synchronized blocks, volatile keywords, and Atomic types to detect race conditions and visibility issues. It identifies potential bugs in multi-threaded applications and suggests best practices for robust concurrency.

What causes deadlocks in Java multithreading and how can I identify them?▼

Deadlocks in Java multithreading occur when threads block each other indefinitely. Concurrency code review identifies these potential deadlocks by analyzing synchronized blocks and resource locking patterns to prevent hard-to-reproduce application freezes.

How do I review Java Virtual Threads and CompletableFuture usage for concurrency bugs?▼

Reviewing Java Virtual Threads and CompletableFuture involves checking adherence to modern concurrency patterns. The analysis detects potential thread safety issues and suggests best practices for robust multi-threaded applications using these modern features.

Can I use this concurrency review to check Spring @Async annotation issues?▼

Yes, you can use concurrency review to check Spring @Async annotation issues. The analysis reviews code involving Spring's @Async annotation to identify potential bugs and suggest best practices for robust multi-threaded execution.

What's the best way to analyze concurrent collections in Java for potential bugs?▼

The best way to analyze concurrent collections in Java is through a comprehensive concurrency review. This examines concurrent collections alongside synchronized blocks and Atomic types to identify potential bugs and ensure thread-safe execution.

When do I need a concurrency review for my Java multi-threaded service?▼

You need a concurrency review for your Java multi-threaded service before deploying to production. This ensures robustness by identifying hard-to-reproduce issues like race conditions and deadlocks, preventing critical runtime failures.