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

rust-async-patterns Seth Hobson skill A skill for building and debugging async Rust with Tokio, tasks, channels, streams, and error handling. Use it for concurrent services and async I/O. Claude Code CX Codex Cursor 20,625installs javascript-testing-patterns Seth Hobson skill This skill provides JavaScript and TypeScript testing examples, from unit tests to end-to-end flows. Use it when setting up test infrastructure or working with TDD. Claude Code CX Codex Cursor 20,472installs add-lang colbymchenry skill Adds a new language to codegraph through tree-sitter, tests the extractor, and measures extraction and retrieval on real repositories. Claude Code CX Codex Cursor +1 1,200installs tdd-rust rtk-ai skill Skill for RTK filter development using TDD. Write a test with real data, implement minimum code, verify token savings, lock the output format with insta snapshots. Claude Code CX Codex Cursor +1 1,400installs 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 flutter-implement-json-serialization flutter skill Teaches coding agents to build Dart models with fromJson and toJson methods using dart:convert. Useful for manual JSON mapping in simple Flutter data structures. Claude Code CX Codex Cursor +1 37,200installs mentoring-juniors official github skill This skill mentors junior developers through questions instead of ready-made answers. Use it for learning code, debugging, and getting started with Copilot. GitHub Copilot 6,900installs async-python-patterns Seth Hobson skill This skill guides async Python work with asyncio, async/await, and concurrent tasks. Use it for APIs and applications with many I/O-bound operations. Claude Code CX Codex Cursor 18,055installs cardputer-buddy official Anthropic skill Iterate on Cardputer-Adv MicroPython apps without re-flashing. The skill pushes individual files over serial, streams device logs, and runs one-shot REPL commands. Claude Code 2,897installs godot-gdscript-patterns Seth Hobson skill A skill for building Godot 4.x games with GDScript, covering scenes, signals, state management, and architecture. Useful when implementing game systems. Claude Code CX Codex Cursor 17,396installs python-code-style Seth Hobson skill A skill for Python style rules, linting, formatting, naming, and documentation. Use it when writing code, reviewing changes, or setting project standards. Claude Code CX Codex Cursor 16,456installs ccxt-python ccxt skill Helps Python developers integrate cryptocurrency exchanges using CCXT. Covers REST and WebSocket endpoints in both synchronous and asyncio modes. Claude Code CX Codex Cursor +1 2,000installs swift-concurrency AvdLee skill Diagnoses Swift Concurrency issues, refactors callback code to async/await, and guides Swift 6 migration. Useful when isolation, Sendable, or compiler warnings block a change. Claude Code CX Codex Cursor +1 17,000installs golang-code-style samber skill A skill for writing clear Go code: line breaking, variable declarations, control flow, when comments help. Use it when writing or reviewing Go, discussing style, or setting project standards. Claude Code CX Codex Cursor +1 44,000installs golang-pro https://github.com/Jeffallan skill A Go skill for concurrent code, microservices, performance profiling, and idiomatic interfaces. Use it for goroutines, gRPC, benchmarks, and table-driven tests. Claude Code CX Codex Cursor +1 18,900installs uv-package-manager Seth Hobson skill This skill helps an agent manage Python projects with uv: dependencies, virtual environments, and Python versions. Use it for new projects or migrations from pip. Claude Code CX Codex Cursor 15,210installs golang-design-patterns samber skill This skill guides idiomatic Go design for APIs, resource lifecycles, graceful shutdown, and architecture. Use it when designing or reviewing Go code. Claude Code CX Codex Cursor +1 41,900installs golang-performance samber skill Guides AI coding agents through profiling, memory allocation cuts, and CPU optimization in Go projects using a strict measurement-first cycle. Claude Code CX Codex Cursor +1 41,800installs golang-concurrency samber skill The skill sets rules for concurrent Go code: goroutine lifecycle, channels and select, mutexes, errgroup, singleflight, worker pools, and fan-out/fan-in pipelines. Claude Code CX Codex Cursor +1 41,600installs winui3-migration-guide official github skill This skill helps move UWP code to WinUI 3 and Windows App SDK. Use it to check API replacements, namespaces, and common Copilot mistakes. GitHub Copilot 5,700installs winmd-api-search official github skill This skill finds the right Windows API for a task and returns full type details. Useful when you are building a feature and don't know which class or interface to reach for. GitHub Copilot 5,700installs directives vercel-labs skill Pre-built directives for json-render: formatting, math, string handling, i18n. Wire them into your catalog and renderer with one import. Claude Code CX Codex Cursor +1 8,000installs python-project-structure Seth Hobson skill This skill organizes Python modules, public APIs, tests, and directory layouts. Use it when starting a project, reshaping a codebase, or building a reusable package. Claude Code CX Codex Cursor 14,768installs golang-database samber skill Go database guidelines for database/sql, sqlx, and pgx. Enforces parameterized queries, context passing, and explicit connection pool handling without ORMs. Claude Code CX Codex Cursor +1 40,700installs golang-naming samber skill A Go naming skill for writing, reviewing, and refactoring code. It covers packages, types, errors, booleans, enums, and tests. Claude Code CX Codex Cursor +1 40,700installs golang-safety samber skill Skill prevents common Go crashes before they happen: nil map writes, typed-nil interfaces, append aliasing, silent integer truncation, and resource leaks from defer in loops. Claude Code CX Codex Cursor +1 40,400installs golang-project-layout samber skill Skill organizes a Go project by convention: cmd/, internal/, pkg/ directories, module naming, go.work for monorepos. Asks about architecture and dependency injection approach, then scaffolds files and config. Claude Code CX Codex Cursor +1 40,300installs golang-modernize samber skill A skill that updates Go codebases to current language idioms, standard library improvements, and tooling. Handy when reviewing old-style patterns, bumping the Go version, or refreshing CI. Claude Code CX Codex Cursor +1 40,200installs golang-documentation samber skill Guides Go documentation standards, covering godoc comments, Example tests, README, and llms.txt. Useful when releasing libraries or CLIs. Claude Code CX Codex Cursor +1 40,200installs golang-data-structures samber skill Helps choose Go data structures and understand slices, maps, and standard containers. Useful when designing generic collections or working with pointers. Claude Code CX Codex Cursor +1 40,100installs typescript-review metabase skill Reviews TypeScript and JavaScript changes against Metabase coding rules. Use it for pull requests or diffs that include TS or JS files. Claude Code CX Codex Cursor +1 2,300installs golang-troubleshooting samber skill Systematic root-cause debugging for Go code facing deadlocks, panics, and race conditions. Guides the agent to reproduce bugs before applying fixes. Claude Code CX Codex Cursor +1 39,800installs golang-dependency-management samber skill This skill manages Go dependencies, version conflicts, module audits, and vulnerability checks. Use it when changing go.mod or reviewing a package before adoption. Claude Code CX Codex Cursor +1 39,700installs golang-structs-interfaces samber skill Enforces idiomatic Go patterns for struct and interface design. Useful when defining consumer-driven contracts, zero-value structs, and compile-time type checks. Claude Code CX Codex Cursor +1 39,600installs golang-benchmark samber skill This skill helps write and run Go benchmarks, inspect profiles, and compare measurements. Use it when tracking regressions or investigating a hot path. Claude Code CX Codex Cursor +1 39,400installs golang-cli samber skill A skill for building, extending, and reviewing Go CLI tools with guidance on commands, flags, configuration, signals, completion, and tests. Claude Code CX Codex Cursor +1 39,300installs golang-popular-libraries samber skill A skill to select production-ready Go libraries and frameworks by category (web, database, testing, logging, messaging). Use it when you need to compare alternatives or pick a dependency for a new task. Claude Code CX Codex Cursor +1 39,300installs golang-dependency-injection samber skill Guides dependency injection in Go projects, comparing manual constructor injection against wire, dig, fx, and samber/do. Claude Code CX Codex Cursor +1 39,300installs golang-stretchr-testify samber skill Guides coding agents through writing Go tests with stretchr/testify. Helps configure assertions, mocks, and test suites cleanly. Claude Code CX Codex Cursor +1 39,200installs golang-grpc samber skill A Go gRPC skill covering .proto files, servers, clients, errors, TLS, testing, and streaming RPCs. Use it while building, reviewing, or debugging services. Claude Code CX Codex Cursor +1 39,100installs