Total 56,538 skills, Backend Development has 4472 skills
Showing 12 of 4472 skills
Shelf framework guardrails, patterns, and best practices for AI-assisted development. Use when working with Shelf (Dart HTTP server) projects, or when the user mentions Shelf. Provides middleware patterns, request handling, pipeline composition, and server guidelines.
Provides comprehensive guidance for Django framework including models, views, templates, forms, admin, REST framework, and deployment. Use when the user asks about Django, needs to create Django applications, implement models and views, or build Django REST APIs.
REST and GraphQL API design best practices including OpenAPI specs. Use when designing APIs, documenting endpoints, or reviewing API architecture.
Comprehensive skill for all Symfony framework components. Covers HTTP handling, dependency injection, forms, validation, caching, messaging, console commands, event dispatching, workflows, serialization, testing, filesystem operations, configuration, and utility components. Use when working with any Symfony component.
Set up a Stellar/Soroban smart contract project with OpenZeppelin Contracts for Stellar. Use when users need to: (1) install Stellar CLI and Rust toolchain for Soroban, (2) create a new Soroban project, (3) add OpenZeppelin Stellar dependencies to Cargo.toml, or (4) understand Soroban import conventions and contract patterns for OpenZeppelin.
Applies general rules for Convex development, emphasizing schema design, validator usage, and correct handling of system fields.
Develop Python applications using modern patterns, uv, functional-first design, and production-first practices. Use this whenever working with .py files, pyproject.toml, uv commands, pip/pip3, poetry, virtualenv/venv, inline script metadata, or Python tooling like pytest, mypy, ruff, asyncio, itertools, functools, or dataclasses. If the task involves running Python, managing Python dependencies, creating environments, or building Python packages, load this skill and prefer uv-oriented workflows.
API architecture: REST design, versioning, HATEOAS, auth patterns, OpenAPI docs, gateway patterns
DDD: bounded contexts, aggregates, entities, value objects, domain events, ubiquitous language
Build and traverse Nostr social graphs including follow lists (kind:3, NIP-02), relay list metadata (kind:10002, NIP-65), the outbox model for relay-aware event fetching, mute lists (kind:10000), and NIP-51 lists with public and private encrypted items. Use when implementing follow/unfollow, building feeds from followed users, discovering user relays, implementing the outbox model, creating mute or bookmark lists, or working with any NIP-51 list kind.
Guide for exposing PostHog product endpoints as MCP tools. Use when creating new or updating API endpoints, adding MCP tool definitions, scaffolding YAML configs, or writing serializers with good descriptions. Covers the full pipeline from Django serializer to generated TypeScript tool handler.
Create production grade smart contracts. Use this skill when the user asks to write smart contracts, specially if they are going to be deployed to production (to a mainnet, or used in a mainnet script).