Code review and refactoring: skills, plugins, subagents, slash commands and mcp servers

arize-trace official arize skill Export Arize traces and spans by ID, then inspect them to investigate errors or LLM app behavior. Use it when you need to examine trace data already collected. GitHub Copilot 1,100installs visual-edit-precision Adit Jain skill Skill for targeted UI changes when you show elements on a screenshot or point them out in code. Edits only what you selected, without refactoring the entire component. Claude Code CX Codex Cursor 2,800installs react19-source-patterns official github skill A reference for moving React source files to React 19, covering API changes, refs, context, and props. Useful during an existing project upgrade. GitHub Copilot 967installs anti-ui-slop official UIZZE skill This skill guides agents toward product-specific interfaces instead of generic UI. Use it for web or iOS design, implementation, redesign, and pre-ship review. GitHub Copilot 967installs salesforce-apex-quality official github skill Checks Apex for governor-limit risks, security gaps, and missing tests. Use it when GitHub Copilot reviews or generates Salesforce classes, triggers, and test code. GitHub Copilot 884installs react-audit-grep-patterns official github skill Verified grep pattern library for auditing React projects before upgrading to React 18.3.1 or 19. It spots deprecated APIs and syntax breaking changes. GitHub Copilot 854installs swiftui-ui-patterns official OpenAI skill This skill helps build and refactor SwiftUI interfaces, from navigation and state to layouts and controls. Use it for new screens or changes to an existing project. CX Codex GP ChatGPT 114installs salesforce-flow-design official github skill Reviews Salesforce Flow architecture, type selection, bulk safety, and fault handling. Use it before designing, reviewing, or activating a Flow. GitHub Copilot 839installs salesforce-component-standards official github skill Guides Salesforce UI development across LWC, Aura, and Visualforce. Enforces SLDS 2 compliance, accessibility, and platform security. GitHub Copilot 770installs react18-dep-compatibility official github skill Checks minimum dependency versions for React 18.3.1 and React 19. Use it during React upgrades and when resolving peer dependency conflicts. GitHub Copilot 764installs react18-batching-patterns official github skill Diagnoses and fixes React 18 automatic batching bugs in class components. Useful when upgrading from React 17 breaks state assertions or async flows. GitHub Copilot 754installs react18-legacy-context official github skill This skill migrates React legacy context to createContext and coordinates the provider with every consumer. Use it for class component context migrations. GitHub Copilot 745installs react18-lifecycle-patterns official github skill Migrates unsafe class component lifecycle methods to React 18.3.1 patterns. Helps prepare legacy code for React 19 before breaking changes arrive. GitHub Copilot 743installs react18-string-refs official github skill Guides the move from string refs to React.createRef() in class components. Use it when preparing a project for React 18.3.1 or React 19. GitHub Copilot 741installs react18-enzyme-to-rtl official github skill Provides Enzyme to React Testing Library migration patterns for React 18 upgrades. Useful when rewriting shallow renders, mount calls, and state assertions into user behavior checks. GitHub Copilot 739installs code-tour official github skill Generates interactive CodeTour .tour files with step-by-step navigation across real files and line numbers. Useful for onboarding teammates and explaining complex pull requests. GitHub Copilot 727installs migrate-to-rust official google skill Migrates legacy C++, Fortran, Java, and Python codebases to safe Rust with telemetry benchmarks. Claude Code Gemini CLI CX Codex 538installs swiftui-view-refactor official OpenAI skill Refactors SwiftUI view files into clean, testable structures with dedicated subview types and proper Observation ownership. CX Codex GP ChatGPT 113installs senior-frontend Alireza Rezvani skill Scaffolds Next.js and React projects, generates components with tests, and audits bundle size to replace heavy dependencies. Claude Code 1,630installs senior-architect Alireza Rezvani skill Generates architecture diagrams, checks coupling, and detects dependency cycles in codebases. Helps teams make technical decisions and document ADRs. Claude Code 1,494installs spawn Alireza Rezvani skill Runs parallel subagents in isolated git worktrees to compete on a session task. Helpful when you want multiple implementation strategies tested at once. Claude Code 1,431installs eval Alireza Rezvani skill Evaluates and ranks agent results from an AgentHub session using test metrics or an LLM judge. Helps select the winning branch. Claude Code 1,408installs senior-fullstack Alireza Rezvani skill Scaffolds Next.js, FastAPI, MERN or Django projects and scores your codebase for quality and security issues. Claude Code 1,390installs commit-message-storyteller official github skill Parses git diffs or change descriptions to generate Conventional Commits messages that explain the intent behind code changes. GitHub Copilot 392installs harness-engineering official github skill Turns repeated coding agent mistakes into repository rules, drift checks, and regression tests. Use it when Copilot keeps repeating the same errors in your project. GitHub Copilot 366installs senior-security Alireza Rezvani skill Runs STRIDE and DREAD threat modeling, performs fast secret scans, and routes specialized security tasks to dedicated sub-skills. Claude Code 1,277installs legacy-modernizer VoltAgent Community subagent Assesses aging codebases and breaks modernization into migration steps with tests and rollback planning. Use it when changes need to happen incrementally. Claude Code 826installs react-specialist VoltAgent Community subagent A subagent for improving existing React code, from performance and state flow to architecture and tests. Use it when a project needs focused technical changes. Claude Code 815installs code-reviewer Alireza Rezvani skill Analyzes pull requests for risks and complexity, detects SOLID violations, and generates review reports. Helps inspect code changes before merging. Claude Code 1,130installs refactoring-specialist VoltAgent Community subagent Transforms messy, duplicated code into clean structures while keeping existing behavior intact. Ideal for legacy refactoring and reducing cyclomatic complexity. Claude Code 784installs ios-memgraph-leaks official OpenAI skill Captures and inspects iOS leaks from a simulator process or .memgraph. Useful for tracing retained objects and checking a fix with before-and-after evidence. CX Codex GP ChatGPT 1,054installs self-improving-agent Alireza Rezvani skill Curates Claude Code auto-memory from MEMORY.md, promotes proven patterns to CLAUDE.md, and extracts reusable skills from recurring solutions. Claude Code 1,078installs architect-reviewer VoltAgent Community subagent Evaluates system design decisions, architecture patterns, and tech stack choices at a macro level. Useful before large-scale refactoring or when designing new service boundaries. Claude Code 743installs karpathy-coder claude-code-skills skill Enforces Andrej Karpathy's 4 coding principles to prevent LLM over-engineering. Catches assumptions, keeps diffs surgical, and strips out unrequested abstractions. Claude Code 1,053installs cpp-pro Seth Hobson subagent Writes modern C++ from C++11 to C++23 using RAII, smart pointers, and STL algorithms. Helps with C++ refactoring and template design. Claude Code CX Codex Cursor 781installs tdd-guide Alireza Rezvani skill Guides test-driven development, builds unit tests, and detects test coverage gaps. It supports Jest, Pytest, JUnit, and Vitest projects. Claude Code 1,017installs gdpr-dsgvo-expert Alireza Rezvani skill Scans code for GDPR and German BDSG privacy risks, builds DPIA reports, and tracks data subject rights deadlines. Claude Code 980installs codebase-memory-mcp official github skill Explore unfamiliar code with Codebase Memory: find symbols, relationships and data flows, then check graph-based findings against source files. GitHub Copilot 259installs c-pro Seth Hobson subagent A subagent for C code with memory ownership, system calls, and POSIX. Use it for systems, embedded, and performance-critical work. Claude Code CX Codex Cursor 650installs adversarial-reviewer ekreloff skill This skill reviews changes through Saboteur, New Hire, and Security Auditor personas. Use it before merging a PR or when Claude is too agreeable. Claude Code 813installs