Programming languages: skills, plugins, subagents, slash commands and mcp servers

n8n-code-javascript czlonkowski skill Writes, reviews, and debugs JavaScript for n8n Code nodes, handling execution modes, item loops, and runtime constraints. Claude Code CX Codex Cursor +1 7,100installs dry-refactoring kucherenko skill This skill automates refactoring of copy-paste clones found by jscpd. It guides you through extraction strategies—function, parameterization, module or class—and highlights which files to start with. Claude Code CX Codex Cursor +1 3,600installs angular-new-app Angular Team @ Google skill A skill that scaffolds new Angular applications via the Angular CLI. Verifies your setup, generates the project with appropriate flags, and steers you toward Angular best practices. Claude Code CX Codex Cursor +1 19,200installs full-output-enforcement nexu-io skill This skill asks an agent to return complete implementations without omitted sections or placeholder code. Use it when a partial answer would not meet the request. Claude Code CX Codex Cursor +1 1,600installs bun-development sickn33 skill This skill guides JavaScript and TypeScript work with the Bun runtime, from new projects and Node.js migrations to Bun-specific troubleshooting. Claude Code CX Codex Cursor +1 2,800installs code-quality tursodatabase skill Correctness rules, Rust patterns, and anti-over-engineering guidance for coding agents working in your repo. Claude Code CX Codex Cursor +1 1,800installs python-debugpy openclaw skill Guides interactive Python debugging with pdb and debugpy remote attach. Useful for tracking down broken tests, state mutations, and headless processes. Claude Code CX Codex Cursor +1 332installs ctf-forensics ljagiello skill Digital forensics and signal analysis techniques for CTF challenges: disk images, memory dumps, PCAP files, steganography, Windows artifacts, and side-channel attacks. Claude Code CX Codex Cursor +1 9,000installs embedded-systems https://github.com/Jeffallan skill Configure your coding assistant for microcontroller firmware, bare-metal C, and FreeRTOS applications. It helps structure drivers, ISRs, and low-power routines under tight memory limits. Claude Code CX Codex Cursor +1 6,700installs javascript-pro VoltAgent Community subagent This subagent reviews and changes JavaScript for browser and Node.js projects. Use it for work involving async code, performance, or modern language features. Claude Code 4,974installs bash-scripting sickn33 skill A structured workflow for building shell scripts with defensive patterns, error handling, ShellCheck, and Bats tests. Claude Code CX Codex Cursor +1 2,400installs rust-engineer https://github.com/Jeffallan skill Guides the agent to write and review idiomatic Rust 2021 code. Useful when designing traits, resolving borrow checker errors, and building async tokio services. Claude Code CX Codex Cursor +1 6,300installs gpui-kit longbridge skill This skill guides AI coding assistants in building Rust desktop apps with the gpui-kit crate. Use it to implement UI components, manage state, handle focus, and write tests. Claude Code CX Codex Cursor +1 1,000installs codebase-inspection Hermes Agent skill Counts code lines, files, languages, and code-to-comment ratios with pygount. Use it to inspect a repository’s size and composition. Claude Code CX Codex Cursor +1 420installs microsoft-agent-framework official github skill Guides GitHub Copilot through building, updating, reviewing, and explaining Microsoft Agent Framework applications. It also covers migrations from Semantic Kernel and AutoGen. GitHub Copilot 1,900installs javascript-pro Seth Hobson subagent A subagent for modern JavaScript, async code, and Node.js APIs. Use it to debug event-loop issues, review complex patterns, and plan TypeScript migrations. Claude Code CX Codex Cursor 4,974installs javascript-pro https://github.com/Jeffallan skill Skill for writing, debugging, and refactoring JavaScript code with ES2023+, async/await, ESM modules, and Node.js APIs. Use it to build vanilla JavaScript applications or optimize performance in browsers and Node.js. Claude Code CX Codex Cursor +1 6,000installs java-architect https://github.com/Jeffallan skill Build Spring Boot services, implement reactive endpoints, tune JPA queries, and configure OAuth2 or JWT security with a skill that guides implementation and testing. Claude Code CX Codex Cursor +1 5,900installs use-modern-go JetBrains skill Checks Go code against current, version-specific idioms. Useful before writing, fixing, or refactoring project code. Claude Code CX Codex Cursor +1 2,600installs code-simplifier official Anthropic subagent This subagent simplifies recently changed code without changing its behavior. Use it after edits when you want clearer structure and consistent project style. Claude Code 766installs creating-oracle-to-postgres-master-migration-plan official github skill This skill scans a .NET solution, finds Oracle dependencies, and builds a PostgreSQL migration plan. Use it before coordinating a migration across several projects. GitHub Copilot 1,800installs jscpd kucherenko skill Detects duplicate code across 220+ languages and formats findings for AI agents. It flags exact copies, renamed blocks, and refactoring hotspots. Claude Code CX Codex Cursor +1 2,600installs modern-python trailofbits skill Configures Python projects with a modern tooling stack: uv for dependency management, ruff for linting and formatting, ty for type checking. Use when starting new projects, writing scripts, or migrating from legacy tools. Claude Code CX Codex Cursor +1 8,700installs scikit-learn K-Dense-AI skill A skill for Python machine learning tasks: classification, regression, clustering, preprocessing, and building ML pipelines with scikit-learn 1.9.1. Claude Code CX Codex Cursor +1 2,200installs n8n-code-python czlonkowski skill Teaches the agent to write native Python in n8n 2.x Code nodes: only _items and _item, no imports by default, no old _input/_json helpers. Claude Code CX Codex Cursor +1 4,800installs semantic-kernel official github skill This skill helps build and inspect Semantic Kernel applications using current documentation. Use it for projects involving plugins, function calling, or AI integrations. GitHub Copilot 1,700installs async-io-model tursodatabase skill Teaches the agent Turso's cooperative async I/O patterns: explicit state machines, IOResult, and avoiding re-entrancy bugs. Claude Code CX Codex Cursor +1 1,300installs cpp-pro https://github.com/Jeffallan skill Writes, optimizes, and debugs C++ with concepts, ranges, coroutines, SIMD, and template metaprogramming. Built for C++20/23 projects where performance and type safety matter. Claude Code CX Codex Cursor +1 5,300installs kotlin-specialist https://github.com/Jeffallan skill This skill guides Kotlin work with coroutines, Flow, KMP, Compose, and Ktor. Use it when an implementation needs structured concurrency, shared code, or Kotlin UI patterns. Claude Code CX Codex Cursor +1 5,200installs golang-pkg-go-dev samber skill Queries Go package docs, API signatures, examples, and CVEs via godig and pkg.go.dev. Inspects external dependencies directly in agent chat. Claude Code CX Codex Cursor +1 11,700installs dotnet-timezone official github skill This skill gives C# and .NET guidance for time zones, UTC conversion, DST, and Windows or IANA IDs. Use it for APIs, schedulers, and location lookups. GitHub Copilot 1,600installs aws-cdk-python-setup official github skill This skill prepares an AWS CDK project in Python, covering prerequisites, project creation, dependencies, and deployment to AWS. GitHub Copilot 1,600installs matlab K-Dense-AI skill A skill for designing and reviewing numerical code in MATLAB and GNU Octave. Useful when you need to inspect a stranger's .m file or prepare a reproducible project. Claude Code CX Codex Cursor +1 2,000installs sympy K-Dense-AI skill Skill for exact symbolic computation: algebra, differential equations, matrices, physics. When you need √2 exactly instead of 1.414, not numerical approximations. Claude Code CX Codex Cursor +1 2,000installs golang-refactoring samber skill A skill for behavior-preserving restructuring of Go code at scale. Uses gopls, gofmt, and tools like gopatch to break down large functions, rename types across a project, and reorganize packages without breakage. Claude Code CX Codex Cursor +1 11,200installs csharp-developer https://github.com/Jeffallan skill Enforces .NET 8 and C# 12 development practices for ASP.NET Core APIs and Blazor apps. Useful when writing asynchronous services with EF Core and MediatR. Claude Code CX Codex Cursor +1 4,800installs angular-architect https://github.com/Jeffallan skill An Angular 17+ specialist skill for Claude Code and other AI editors: standalone components with signals, NgRx stores, lazy routing and bundle checks. Claude Code CX Codex Cursor +1 4,800installs ruff-recursive-fix official github skill Runs Ruff in a chosen scope, applies safe and unsafe fixes in passes, and asks for a decision when an automated correction is ambiguous. GitHub Copilot 1,500installs golang-gopls samber skill Semantic navigation and refactoring for Go code through gopls, the official language server. Use it when grep finds text but you need types, call graphs, and build structure. Claude Code CX Codex Cursor +1 10,900installs dotnet-core-expert https://github.com/Jeffallan skill A Claude Code skill that steers the agent through a .NET 8 backend: minimal APIs, clean architecture, EF Core, CQRS with MediatR and JWT auth, from requirements to dotnet test. Claude Code CX Codex Cursor +1 4,700installs