Total 52,044 skills, Backend Development has 4220 skills
Showing 12 of 4220 skills
Debug ASP.NET Core and .NET applications with systematic diagnostic approaches. This skill covers troubleshooting dependency injection container errors, middleware pipeline issues, Entity Framework Core query problems, configuration binding failures, authentication/authorization issues, and startup failures. Includes Visual Studio and VS Code debugging, dotnet-trace, dotnet-dump, dotnet-counters tools, Serilog configuration, Application Insights integration, and four-phase debugging methodology.
Refactor Django/Python code to improve maintainability, readability, and adherence to best practices. Transforms fat views, N+1 queries, and outdated patterns into clean, modern Django code. Applies Python 3.12+ features like type parameter syntax and @override decorator, Django 5+ patterns like GeneratedField and async views, service layer architecture, and PEP 8 conventions. Identifies and fixes anti-patterns including mutable defaults, bare exceptions, and improper ORM usage.
QQ Channel (Tencent Channel) bot management skill. Manage channels, sub-channels, members, messages, announcements, and schedules via QQ Bot API. Use when user wants to operate QQ channels, send messages to channels, or manage channel members.
Use the HTTP client with sensible timeouts, retries, and backoff; capture context and handle failures explicitly
Use framework caches and value/query caching to reduce work; add tags, locks, and explicit invalidation strategies for correctness
Research an Elixir/Phoenix topic on the web. Searches ElixirForum, HexDocs, blogs, and GitHub. Uses efficient markdown conversion.
Technical Design - picks one variant per problem area from the research catalogue, then produces architecture diagrams, interfaces, and data flow. Decisions live here, not in research.
Enforce access via Policies and Gates; use authorize() and authorizeResource() to standardize controller protections
Operate and verify queues with or without Horizon; safe worker flags, failure handling, and test strategies
Reduce controller bloat using Form Requests for auth/validation, small Actions/Services with DTOs, and resource/single-action controllers
Safe database change patterns; when to modify vs add migrations; always pair models with migrations and factories; seeding guidance
Define clear relationships and load data efficiently; prevent N+1, use constraints, counts/sums, and pivot syncing safely