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

typescript-expert sickn33 skill A skill for TypeScript and JavaScript work: it reads your project setup, fixes type errors and speeds up type checking. Useful once a TS codebase gets big. Claude Code CX Codex Cursor +1 12,600installs debug official anthropics skill This skill takes a bug from reproduction to root cause, a fix, and regression coverage. Use it when the symptom is clear but the cause is not. Claude Code CX Codex Cursor +1 5,800installs openspec-verify-change openspec skill Verifies that code implementations match OpenSpec specs, tasks, and design documents before archiving. Useful for validation before finalizing changes. Claude Code CX Codex Cursor +1 3,500installs standup thedotmack skill A skill that runs a facilitated conversation between agents from different git branches and PRs. Each branch is its own voice, discusses its changes, finds overlaps, and agrees on merge order — all read-only, no real commits. Claude Code CX Codex Cursor +1 3,400installs refactor-method-complexity-reduce official github skill Refactors a chosen method by moving complex logic into helpers. Use it when nested conditions or branching make a method hard to follow. GitHub Copilot 9,992installs openspec-new-change openspec skill A skill for starting new features, fixes, and modifications through OpenSpec—a step-by-step workflow with artifacts instead of free editing. Use it if you want to track changes and follow a clear development pattern. Claude Code CX Codex Cursor +1 3,400installs design-patterns rtk-ai skill Provides Rust architectural patterns for RTK CLI filter modules. Helps select Newtype, Builder, State Machine, and RAII during module design and refactoring. Claude Code CX Codex Cursor +1 1,900installs context-map official github skill This skill makes the agent map every file, test and dependency tied to a task before it touches code. Handy on a codebase you don't know yet. GitHub Copilot 9,641installs ef-core official github skill This skill guides Entity Framework Core reviews and suggests practices for models, queries, migrations, security, and tests. Use it when EF Core code needs a focused check. GitHub Copilot 9,594installs write-coding-standards-from-file official github skill This skill derives project coding standards from existing files or folders. Use it when the repository needs a style guide based on code already in place. GitHub Copilot 9,570installs folder-structure-blueprint-generator official github skill This skill analyzes a project’s folders and creates a blueprint with tree views, naming rules, and file templates. Use it when a codebase needs a clear structure guide. GitHub Copilot 9,438installs java-refactoring-extract-method official github skill This skill guides Extract Method refactoring for complex Java methods while preserving behaviour. Use it when a method needs smaller, focused units backed by tests. GitHub Copilot 9,284installs architecture-patterns Seth Hobson skill Guides backend architecture with Clean Architecture, Hexagonal Architecture, and DDD. Use it when designing a service, untangling a monolith, or tracing dependency cycles. Claude Code CX Codex Cursor 24,144installs thermo-nuclear-code-quality-review cursor skill Runs a strict maintainability audit of code changes, abstractions, large files, and branching complexity. Use it when a routine review needs deeper structural scrutiny. Claude Code CX Codex Cursor +1 22,200installs quasi-coder official github skill This skill turns shorthand, quasi-code, and natural-language requests into working implementations. Use it when requirements are incomplete, imprecise, or mix technical terms. GitHub Copilot 9,100installs power-bi-dax-optimization official github skill Reviews DAX formulas, proposes a revised version, and explains the changes. Use it when Power BI measures are hard to read or slow under filters. GitHub Copilot 9,100installs power-bi-model-design-review official github skill Reviews Power BI model architecture, relationships, and storage modes. Use it before a model release or when investigating slow queries. GitHub Copilot 9,000installs chakra-ui-refactor chakra-ui skill Reviews components against Chakra UI v3 patterns and converts markup from HTML, Tailwind, or styled-components. Useful for UI refactoring and accessibility audits. Claude Code CX Codex Cursor +1 2,800installs terraform-azurerm-set-diff-analyzer official github skill Analyzes Terraform plan JSON for AzureRM to separate Set ordering noise from real resource changes. Use it when plan reviews show a noisy diff. GitHub Copilot 8,900installs java-refactoring-remove-parameter official github skill This skill guides an agent through removing unused or derivable parameters from Java methods and updating their callers. Use it when the change must preserve behavior and be checked with tests. GitHub Copilot 8,900installs github-copilot-starter official github skill Sets up GitHub Copilot for a new project from its technology stack and team conventions. Useful when the repository needs a ready structure for instructions, skills, and agents. GitHub Copilot 8,900installs generate-custom-instructions-from-codebase official github skill This skill compares two repository states and writes migration guidance for GitHub Copilot. Use it after a framework upgrade, technology switch, or major refactor. GitHub Copilot 8,900installs copilot-instructions-blueprint-generator official github skill Creates a blueprint for copilot-instructions.md from the repository’s architecture, code patterns, and technology versions. Useful when Copilot needs project-specific guidance. GitHub Copilot 8,900installs comment-code-generate-a-tutorial official github skill Refactors a Python script, adds instructional comments, and writes a tutorial README.md. Use it when a script needs to be understandable for beginners. GitHub Copilot 8,900installs code-exemplars-blueprint-generator official github skill Generates a configurable prompt that finds strong code examples in a repository and turns them into exemplars.md. Useful when a team needs visible coding patterns. GitHub Copilot 8,800installs bigquery-pipeline-audit official github skill Skill audits Python + BigQuery scripts for cost leaks, idempotency, and production readiness. Catches uncontrolled loops, missing query cost limits, and unsafe writes—returns a structured report with exact line numbers. GitHub Copilot 8,800installs error-handling-patterns Seth Hobson skill This skill covers exceptions, Result types, error propagation, and graceful degradation. Use it when designing APIs or debugging failures. Claude Code CX Codex Cursor 22,957installs python-design-patterns Seth Hobson skill Use it to shape Python components, separate responsibilities, and decide when repeated code deserves an abstraction. It fits design and refactoring work. Claude Code CX Codex Cursor 22,842installs update-avm-modules-in-bicep official github skill Updates Azure Verified Module versions in Bicep files and checks the result with lint and build. Useful when reviewing infrastructure changes. GitHub Copilot 8,600installs interface-review jakubkrehel skill Audits pull requests, branches, and uncommitted edits for layout, UI, accessibility, and typography regressions. Keeps focus on what changed rather than pre-existing debt. Claude Code CX Codex Cursor +1 18,100installs modern-javascript-patterns Seth Hobson skill This skill guides JavaScript refactors and async work with ES6+ syntax and functional patterns. It includes practical recommendations for code structure. Claude Code CX Codex Cursor 21,553installs check tw93 skill Reviews diffs and release readiness without modifying your worktree unprompted. Runs read-only checks before you merge or ship code. Claude Code CX Codex Cursor +1 15,800installs flutter-apply-architecture-best-practices flutter skill This skill structures Flutter apps around UI, Logic, and Data layers. Use it when starting a project or refactoring code for scale. Claude Code CX Codex Cursor +1 43,000installs no-mistakes kunchenguid skill Runs committed changes through review, tests, lint, docs, push, PR, and CI before they reach the configured push target. Use it to validate completed work. Claude Code CX Codex Cursor +1 5,600installs academic-paper-review bytedance skill A skill for automated peer review of academic papers following top-conference standards. Assesses methodology, evaluates novelty, identifies weaknesses, and delivers evidence-based critique. Claude Code CX Codex Cursor +1 2,700installs bmad-toolsmith bmad-code-org skill Smithy builds BMad skills, agents, and modules from your session. Use it to scaffold a skill from scratch, refactor an existing one, or package a workflow as a reusable tool. Claude Code CX Codex Cursor +1 4,400installs git-advanced-workflows Seth Hobson skill This skill covers Git history editing, commit transfers, bug hunting, worktrees, and reflog recovery. Use it for complex branches or cleaner pull requests. Claude Code CX Codex Cursor 19,356installs dotnet-backend-patterns Seth Hobson skill Skill for C# and .NET development: patterns for async code, dependency injection, Entity Framework Core, caching, and testing. Use when building backend APIs, MCP servers, or reviewing C# code. Claude Code CX Codex Cursor 19,076installs google-mobile-ads-android-migrate-to-next-gen official google skill Guides Android projects through a move from the legacy Google Mobile Ads SDK to GMA Next-Gen. Use it when updating an existing ad integration and checking the resulting code. Claude Code Gemini CLI CX Codex 5,969installs ultracite haydenbleasel skill The ultracite skill sets up linting and formatting for JS/TS projects through Oxlint, Biome or ESLint with one command. Claude Code CX Codex Cursor +1 11,300installs