8,997 tagged Languages, measured the same way as everything else here.
Browse within: agents 115LLM 112skills 93antigravity 92agent 91claude-code-skills 86ai-coding 83cli 73azure 69dotnet 69javascript 68copilot 65sdk 63openai 62
martian56/raven-language-skill
Skill Claude CodeCodex
Reference and patterns for writing Raven programming language source (.rv files). Use this whenever the user is writing, editing, debugging, or reviewing Raven code, working in an rvpm project (rv.toml), discussing Raven syntax, importing from Raven's stdlib (std/io, std/string, std/fmt, std/collections, std/math…
Skill Claude CodeCodex
Bun runtime API reference for TypeScript scripts. Covers Bun.serve() HTTP/HTTP/2 server with routes and WebSockets, fetch() transport options, Bun.file(), Bun.write(), Bun.$() shell, Bun.spawn(), Bun.Glob, Bun.env, bun:sqlite, Bun.sql() for PostgreSQL/MySQL via DATABASEURL, Bun.s3 for S3-compatible storage, Bun.redis…
Skill Claude CodeCodex
Comprehensive GameMaker Studio 2 and GML expertise covering beginner to advanced topics. Provides guidance on object creation, GML syntax, event systems, data structures, file I/O, shaders, networking, platform-specific features, performance optimization, and debugging. Automatically invoked when working with .gml…
Skill Claude CodeCodex
Desenvolvimento de microserviços e APIs REST com o framework minimalista Horse em Delphi. Rotas, controllers, middlewares, gerenciamento de memória e tratamento de parâmetros.
Skill Codex
High-quality C++ OOP coding style (archibate / parallel101 lineage) that overrides sloppy AI-default C++. Use this skill WHENEVER writing, editing, refactoring, or reviewing C++ code (.cpp / .h / .hpp / .cc / .cxx), designing C++ classes, interfaces, APIs, or libraries, or when the user mentions C++ design, OOP…
Skill Claude CodeCodex
Ktor server patterns including routing DSL, plugins, authentication, Koin DI, kotlinx.serialization, WebSockets, and testApplication testing. Use when building a Ktor server — routing, plugins, auth, DI, serialization, or tests.
zander-zyx/java-development-skill
Skill Claude CodeCodex
Use when working on any Java or JVM project: plain Java, libraries, CLI tools, Maven/Gradle builds, Spring Boot, Jakarta EE, MyBatis/MyBatis-Plus, JPA/Hibernate, Lombok, Java tests, Java code review, API design, exception handling, security review, refactoring, dependencies, Java version upgrades, javax/jakarta…
jeremieb/swift-unit-test-instructions
Skill Claude CodeCodex
Builds a protocol-based async/await networking layer with URLSession, testable abstractions, error handling, and mock support for Swift projects. Use when user says "add networking", "create an API layer", "fetch data from API", "build a network service", "add URLSession", "implement HTTP requests", "create a REST…
Skill Claude CodeCodex
Askama Rust templating reference (0.16).
Skill Claude CodeCodex
Comprehensive Swift development knowledge for iOS/macOS applications, Swift packages, and modern Swift patterns. Use when working with: (1) xcodebuild commands and Xcode projects, (2) Swift Package Manager, (3) SwiftUI views and patterns, (4) Swift 6 concurrency (async/await, actors, Sendable), (5) XCTest and Swift…
syncfusion/wpf-ui-components-skills
Skill Claude CodeCodex
Implements Syncfusion WPF DataGrid (SfDataGrid) component for displaying and manipulating tabular data in Windows Presentation Foundation applications. Use this when working with data grids, table views, or data binding scenarios. Supports sorting, filtering, grouping, editing, Excel/PDF export, drag and drop…
sandervanscheepen/silverstripe-mcp
Skill Claude CodeCodex
You are skilled in Silverstripe CMS 6 development. Use this knowledge when working with Silverstripe PHP projects.
Skill Claude Code
Comprehensive PHP code review with security analysis, performance optimization, and PSR-12 compliance checking for PHP7/PHP8 projects.
Skill Claude CodeCodex
Expert guide for developing applications with the ABP Framework (abp.io) using ASP.NET Core, DDD patterns, and Razor Pages / MVC UI. Use this skill whenever the user mentions ABP, abp.io, Volo.Abp, AbpModule, application services, aggregate roots, domain services, ABP CLI, IRepository, PermissionDefinitionProvider…
Skill Claude CodeCodex
Use this skill when writing or reviewing Java code. Covers modern Java (17+), Spring Boot patterns, JPA/Hibernate, Maven/Gradle, testing with JUnit 5, security patterns, and production-grade enterp...
Skill Claude CodeCodex
Execute Python code in an E2B Firecracker sandbox with human review.
Skill Claude CodeCodex
Laravel Filament v4 admin panel, Debugbar development, SEOTools, third-party packages. ALWAYS activate when: working with admin panel, Filament resources, forms, tables, SEO meta tags, debugging. Triggers on: Filament form field, admin CRUD, resource table, action button, widget, Debugbar query log, N+1 detected, SEO…
Skill Claude CodeCodex
The operating system for elite software engineering in TypeScript, React, and Next.js. Enforces the cognitive models, architecture laws, type-level patterns, component design, visual standards, and performance mandates that separate exceptional software from the ordinary — grounded in named sources (Torvalds…
Skill Claude CodeCodex
A development rule for a FastAPI and SQLite project that requires tests to run with `pytest -v`, then requires failures to be fixed and tests rerun until coverage reaches 100%. FastAPI is a Python web framework, and pytest is a Python testing tool.
Skill Claude Code
You are an Expert Go Software Engineer with deep knowledge of modern Go 1.25+ best practices. Use when creating new Go projects, reviewing Go code, refactoring existing code, or when the user asks about Go modules, error handling, testing, concurrency, or modern Go features. Ensures code follows current best practices…
Skill Claude CodeCodex
Expert guidance for the fastverse in R — the high-performance suite built on data.table, collapse, kit and magrittr, loaded with library(fastverse). Covers how the loader itself works (fastverseextend/detach/reset/sitrep/ update/child, .fastverse project config files, options, OpenMP threading across the three…
Skill Claude CodeCodex
Use this skill when the user asks to use GalSpec to fit a spectrum, do spectral fitting with GalSpec, or fit AGN or galaxy emission-line or absorption-line spectra with GalSpec.
Skill Claude CodeCodex
Guidance for connecting UIKit screens to Swift's Combine framework within the MVVM design pattern.
Skill Claude CodeCodex
Type-safe validated wrappers for browser CustomEvent, BroadcastChannel, and window.postMessage APIs using any standard-schema-compatible validator (zod, valibot, arktype). Use when implementing createEvent, createEventMap, createBroadcastChannel, createBroadcastEvent, or createMessage. For React hooks (useListener…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: