#1
Your agent writes bad React. This catches it
13K starsJun 14, 2026 pushdevelopmentTypeScriptCode Review
$ npx skills add millionco/react-doctorAlternatives
Java Concurrency alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Java Concurrency
Checklist for code reviews
67
Quality
76
Trust
1.4K
Stars
#2
Open-source & free — Battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built-in fine-tuned ruleset (NPE, thread-safety, XSS, SQL injection), OpenAI & Anthropic compatible.
9.9K starsJul 3, 2026 pushdevelopmentGoCode Review
$ npx skills add alibaba/open-code-review#3
🐶 Automated code review tool integrated with any code analysis tools regardless of programming language
9.4K starsJun 12, 2026 pushdevelopmentGoCode Review
$ npx skills add reviewdog/reviewdog#4
The developer platform for on-demand cloud development environments to create software faster and more securely.
14K starsJun 12, 2026 pushdevelopmentTypeScriptCode Review
$ npx skills add gitpod-io/gitpod#5
🚀 PR Agent: The Original Open-Source PR Reviewer. This project It is not the Qodo free tier.
12K starsJun 6, 2026 pushdevelopmentPythonCode Review
$ npx skills add The-PR-Agent/pr-agent#6
Pre-indexed code knowledge graph for Claude Code, Codex, Gemini, Cursor, OpenCode, AntiGravity, Kiro, and Hermes Agent — fewer tokens, fewer tool calls, 100% local
54K starsJun 24, 2026 pushdevelopmentTypeScriptClaude Code
$ npx skills add colbymchenry/codegraph#7
Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering.
36K starsJul 3, 2026 pushdevelopmentJavaScriptClaude Code
$ npx skills add coreyhaines31/marketingskills#8
A Claude Code plugin that shows what's happening - context usage, active tools, running agents, and todo progress
26K starsJun 20, 2026 pushdevelopmentJavaScriptClaude Code
$ npx skills add jarrodwatts/claude-hud#9
Claude Code skill that removes signs of AI-generated writing from text
24K starsJun 7, 2026 pushdevelopmentClaude Code
$ npx skills add blader/humanizer#10
A single CLAUDE.md file to improve Claude Code behavior, derived from Andrej Karpathy's observations on LLM coding pitfalls.
175K starsApr 20, 2026 pushdevelopmentClaude Code
$ npx skills add multica-ai/andrej-karpathy-skills#11
ShellCheck, a static analysis tool for shell scripts
40K starsJun 11, 2026 pushdevelopmentHaskellStatic Analysis
$ npx skills add koalaman/shellcheck#12
Huashu Design · HTML-native design skill for Claude Code · Claude Code 里 HTML 原生的设计 skill · 高保真原型 / 幻灯片 / 动画 + 20 设计哲学 + 5 维评审 + MP4 导出 · Agent-agnostic
19K starsJun 6, 2026 pushdevelopmentHTMLClaude Code
$ npx skills add alchaincyf/huashu-design#13
A static analyzer for Java, C, C++, and Objective-C
16K starsJun 13, 2026 pushdevelopmentOCamlStatic Analysis
$ npx skills add facebook/infer#14
Continuous Inspection
11K starsJul 2, 2026 pushdevelopmentJavaStatic Analysis
$ npx skills add SonarSource/sonarqube#15
All parts of Claude Code's system prompt, 27 builtin tool descriptions, sub agent prompts (Plan/Explore/Task), utility prompts (CLAUDE.md, compact, statusline, magic docs, WebFetch, Bash cmd, security review, agent creation). Updated for each Claude Code version.
12K starsJul 3, 2026 pushdevelopmentJavaScriptClaude Code
$ npx skills add Piebald-AI/claude-code-system-prompts#16
66 Specialized Skills for Full-Stack Developers. Transform Claude Code into your expert pair programmer.
9.9K starsMay 20, 2026 pushdevelopmentPythonClaude Code
$ npx skills add Jeffallan/claude-skillsHow to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Java Concurrency if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.