Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
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Languages (Page 5 of 22)

1277 Claude Code skills in the Languages sub-category of Engineering.

1,277 skills · updated 2026-07-27 · showing 241–300 of 1,277 by quality score

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Convert Scala code to idiomatic Elm. Use when migrating Scala backend logic to Elm frontend applications, translating functional Scala patterns to The Elm Architecture, or…
Convert Scala code to idiomatic Roc. Use when migrating Scala projects to Roc, translating JVM/FP patterns to pure functional patterns, or refactoring Scala codebases.
Run web crawling and scraping workflows with Crawl4AI, an open-source crawler built to produce LLM-ready markdown and structured extraction output.
Run the skill-factory final trust gate: operate trust-gate.sh, read skill.trust.json, and enforce --require-cross.
Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Builds REST APIs using minimal or controller-based routing, configures database acc — from…
Implements concurrent Go patterns using goroutines and channels, designs and builds microservices with gRPC or REST, optimizes Go application performance with pprof, and — from…
Use when building, configuring, or debugging enterprise Java applications with Spring Boot 3.x, microservices, or reactive programming.
Writes, debugs, and refactors JavaScript code using modern ES2023+ features, async/await patterns, ESM module systems, and Node.js APIs.
Use when building PHP applications with modern PHP 8.3+ features, Laravel, or Symfony frameworks. Invokes strict typing, PHPStan level 9, async patterns with Swoole, and — from…
Use when building Python 3.11+ applications requiring type safety, async programming, or robust error handling.
Writes, reviews, and debugs idiomatic Rust code with memory safety and zero-cost abstractions. Implements ownership patterns, manages lifetimes, designs trait hierarchies — from…
Implements advanced TypeScript type systems, creates custom type guards, utility types, and branded types, and configures tRPC for end-to-end type safety.
Master advanced C# patterns including records, pattern matching, async/await, LINQ, and performance optimization for .NET 10.
Modern C# asynchronous programming patterns using async/await, proper CancellationToken usage, and error handling in async code.
Modern C# asynchronous programming patterns using async/await, proper CancellationToken usage, and error handling in async code.
C# code style and naming conventions based on POCU standards. Covers naming rules (mPascalCase for private, bBoolean prefix, EEnum prefix), code organization, C# 9.0 patt — from…
C# code style and naming conventions based on POCU standards. Covers naming rules (mPascalCase for private, bBoolean prefix, EEnum prefix), code organization, C# 9.0 patt — from…
Choosing the right concurrency abstraction in .NET - from async/await for I/O to Channels for producer/consumer to Akka.NET for stateful entity management.
Decompile .NET assemblies to inspect types, understand implementations, debug third-party libraries, and view IL code.
Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Builds REST APIs using minimal or controller-based routing, configures database acc — from…
.NET 8 and C# 12 specialist with expertise in ASP.NET Core, EF Core, and modern enterprise development.
Teach and review dependency injection in C# and .NET. Use for service registration, constructor injection, lifetimes, scopes, factories, options, testability, dependency…
Ensure that C# types are documented with XML comments and follow best practices for documentation.
Principal .NET 10 Architect providing high-performance, idiomatic C# 14 solutions. Use when user asks about: - .NET design patterns (Singleton, Factory, CQRS, Repository, Options…
Expert .NET 10 Debugging Strategist using CLI-first diagnosis. Use when user encounters: - Bugs, errors, exceptions in .NET/C# applications - Performance issues (slow, high CPU,…
Use when working with C# in Godot — conventions, GodotSharp API differences from GDScript, project setup, and interop
Skill C# agnostica al framework: layering, controllers/handlers, application services, repositories, validation, security, persistence, error handling e testing.
Use HSP's csharp-ls route for C# semantic navigation, diagnostics, references, rename, call hierarchy, formatting, and code actions.
Get best practices for MSTest 3.x/4.x unit testing, including modern assertion APIs and data-driven tests
Use when one C# and .NET request spans multiple capability areas and needs one deterministic intake, explicit phase ownership, and a unified execution contract.
C# and .NET development patterns: LINQ, async/await, dependency injection, records, nullable reference types, ASP.NET Core minimal APIs, EF Core, MediatR.
Write modern C# code with advanced features like records, pattern matching, and async/await. Optimizes .NET applications, implements enterprise patterns, and ensures comprehensive…
ALWAYS use for ANY C# operation: renaming (files/classes/methods/properties/namespaces), finding references/usages ("where is X used"), finding definitions ("where is X defined"),…
C#/.NET coding rules from ai-toolkit: coding-style, frameworks, patterns, security, testing. Triggers: .cs, .csproj, .sln, ASP.NET, ASP.NET Core, EF Core, LINQ, NUnit, xUnit,…
Run single-file C# programs as scripts (file-based apps) for quick experimentation, prototyping, and concept testing.
Use when implementing signals in C# — [Signal] delegates, EmitSignal patterns, async signal awaiting, and event-driven architecture
Design .NET types for performance. Seal classes, use readonly structs, prefer static pure functions, avoid premature enumeration, and choose the right collection types.
Comprehensive C# code validation, static analysis, and best practices verification for .NET applications.
C# and .NET project workflow guidelines. Activate when working with C# files (.cs), .csproj, .NET projects, or C#-specific tooling.
C# XML documentation with on-demand Haiku→Expert Review→Final workflow. Flexible Korean/English language support.
csvkit is a suite of Python command-line utilities for converting to, working with, and analyzing CSV files.
CTA Contractual Trust Arrangement: Doppeltreuhand Sicherungs- und Verwaltungstreuhand Bilanzentlastung nach HGB-Paragraph-246-Abs-2-S-2 und IAS-19 plan asset BAG, Urt. v.
Use when building or debugging a browser-based CTI softphone adapter using the Salesforce Open CTI JavaScript API — covers callcenter.xml definition, Lightning utility item…
CDI and Quarkus development standards for CUI projects, including CDI aspects, container configuration, testing, and native optimization
Core Java development standards for CUI projects including coding patterns, null safety, Lombok, modern features, and logging
Standards for identifying, prioritizing, and verifying JavaScript code maintenance and refactoring work
Use TypeScript strict mode and avoid 'any' type. Convex provides full type safety from database to client - use it!
Full Sentry SDK setup for PHP. Use when asked to \"add Sentry to PHP\", \"install sentry/sentry\", \"setup Sentry in PHP\", or configure error monitoring, tracing, profiling,…
Full Sentry SDK setup for Python. Use when asked to \"add Sentry to Python\", \"install sentry-sdk\", \"setup Sentry in Python\", or configure error monitoring, tracing,…
Full Sentry SDK setup for Ruby. Use when asked to add Sentry to Ruby, install sentry-ruby, setup Sentry in Rails/Sinatra/Rack, or configure error monitoring, tracing, log — from…
Context management patterns for multi-source AI agents in Clojure+Vertex AI. Covers 4 context types (static/query/API/previous-result), lifecycle management…
Cost optimization strategies for production AI pipelines in Clojure+Vertex AI. Covers multi-model routing (70% Gemini/20% Haiku/10% Sonnet), token optimization (prompt…
Quick reference cheatsheet for libpython-clj Python interop. Includes initialization, module imports, function calls, data conversions, NumPy/Pandas/Transformers patterns, and…
Generate production code for Dataverse SDK using advanced patterns, error handling, and optimization techniques.
Generate production-ready Python code using Dataverse SDK with error handling, optimization, and best practices
Generate Python SDK setup + CRUD + bulk + paging snippets using official patterns.
Generate complete solutions for specific Dataverse SDK use cases with architecture recommendations
Guide for building reliable, fault-tolerant Go applications with DBOS durable workflows. Use when adding DBOS to existing Go code, creating workflows and steps, or using queues…
Diagnose and fix common Haskell Bazel build errors, especially dependency visibility issues
Systematically investigates TypeScript compiler errors, traces the real type mismatch, and applies a minimal verified fix. Use when the user wants to debug TypeScript type errors.
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