Total 55,565 skills, Backend Development has 4395 skills
Showing 12 of 4395 skills
Implement and configure Syncfusion ASP.NET Core ListBox component with selection controls. Use this when building selection interfaces with single/multiple modes, data binding, or advanced features. Covers ListBox implementation, selection state management, appearance customization, and user interaction handling.
Implement the Syncfusion ASP.NET Core AI AssistView control for interactive AI-powered assistance interfaces. Use this skill when implementing AI assistants, prompt suggestions, custom views, file attachments, markdown responses, customizable templates, assistance features, file uploads, or customizing AI conversation UI in ASP.NET Core applications.
Implement the Syncfusion ASP.NET Core TreeView component for hierarchical data visualization. Use this when working with tree structures, node selection, checkboxes, or drag-and-drop operations. This skill covers data binding, node editing, and advanced tree configurations.
Expert-level development skill for building, debugging, reviewing, and migrating Freshworks Platform 3.0 marketplace applications. REQUIRES Node.js 24.x + FDK 10.x installed BEFORE use—checks prerequisites and refuses to proceed without them. Does NOT install or manage FDK/Node—use fw-setup skill. Before fdk validate, follow this SKILL.md Manifest + toolchain gate (fw-setup if CLI wrong, /fdk-migrate on 2.x or legacy engines, then validate—never downgrade to FDK 9/Node 18 as a shortcut except LAST RESORT after six validate iterations). New apps default to FDK 10.0.1 and Node.js 24.x; FDK 9.x/Node 18.x allowed when explicitly requested with deprecation notice. Use for: (1) Creating Platform 3.0 apps (frontend, serverless, hybrid, OAuth), (2) Debugging validation errors, (3) Migrating Platform 2.x apps to 3.0, (4) Reviewing manifest.json, requests.json, oauth_config.json, (5) Implementing Crayons UI, (6) Integrating external APIs or OAuth providers, (7) Any Freshworks Platform 3.0 app development, FDK CLI, or marketplace submission task.
Generate API design stories from requirements, a domain model, and API standards. Stories bridge product requirements and OpenAPI specs — Emmanuel Paraskakis's method for designing APIs with LLMs. Use when user says "/design-api-stories" or asks to generate API user stories.
Router skill. Luau language mastery has been split into three focused skills for better context efficiency. Load the specific one you need.
Database performance optimization, schema design, query analysis, and connection management across PostgreSQL, MySQL, MongoDB, and SQLite with ORM integration. Use this skill for queries, indexes, connection pooling, transactions, and database architecture decisions.
Expert guidance for ElysiaJS web framework development. Use when building REST APIs, GraphQL services, or WebSocket applications with Elysia on Bun. Covers routing, lifecycle hooks, TypeBox validation, Eden type-safe clients, authentication with JWT/Bearer, all official plugins (OpenAPI, CORS, JWT, static, cron, GraphQL, tRPC), testing patterns, and production deployment. Assumes bun-expert skill is active for Bun runtime expertise.
Use when writing or reviewing asyncio code in Jupyter notebooks or '#%%' cell workflows — structuring event-loop ownership, orchestrating async tasks, or choosing compatibility strategies. Also use when hitting RuntimeError: This event loop is already running, asyncio.run() failures in cells, or tasks silently never completing.
Provides comprehensive guidance for Koa.js framework including middleware, context, async/await patterns, and application structure. Use when the user asks about Koa, needs to create Koa applications, implement middleware, or build Node.js web applications.
PostgreSQL database helper. Use when writing SQL queries, exploring schema, or working with the database.
Optimize SQL queries for performance with indexing strategies, query rewriting, and execution plan analysis. Use when queries are slow, optimizing database performance, or analyzing query execution.