Total 55,942 skills, Backend Development has 4411 skills
Showing 12 of 4411 skills
Design production-grade REST, GraphQL, gRPC, and Python library APIs with correct schemas, error contracts, auth, and versioning. Use when the user asks to design an API, define endpoints, create an OpenAPI/Swagger spec, design a GraphQL schema, build a gRPC service, model request/response with Pydantic, add pagination, or review API contracts. NOT for building MCP server tools (use mcp-server). NOT for Node.js/Express API routes or backend patterns (use backend-patterns or typescript-development).
PostHog integration for server-side Node.js applications using posthog-node
Write application code that integrates with third-party tools via the Truto unified API. Covers API calls, webhook handlers, connection flows, and data access patterns for use in the user's codebase.
CuTe Python DSL kernel workflow, CuteKernel runtime wrapper, suitability gate, tiling guidance, and CuTe-specific pitfalls. Use when: (1) planning or implementing a kernel in the CuTe Python DSL, (2) the optimization needs more explicit control than cuTile exposes but should remain in a Python-driven workflow, (3) defining package naming for cute-dsl kernels, (4) documenting CuTe Python DSL design choices, (5) recording language-specific knowledge for CuTe Python DSL.
Learn how to create and structure Steedos projects using Node.js/TypeScript. Covers minimal project requirements, package.json configuration, steedos-config.yml setup, directory structure, environment variables, and installation procedures. Use when creating a new Steedos project or understanding project organization.
Expert skill for PgQue – a zero-bloat, snapshot-based Postgres queue using pure PL/pgSQL with no C extensions required.
Use when building Elixir applications that need to evaluate JavaScript or TypeScript code, load ES modules, import npm/jsr packages, call JS functions from Elixir, or use V8 snapshots. Triggers on Denox, deno_core, Rustler NIF JS runtime, TypeScript transpilation in Elixir.
Guides application developers in designing correct and performant transaction patterns for CockroachDB, covering transaction lifetime, implicit vs explicit transactions, retry handling with exponential backoff, pushing invariants into SQL, selective pessimistic locking, set-based operations, connection pooling, prepared statements, keyset pagination, follower reads, and separating business logic from database logic. Use when building applications on CockroachDB, designing transaction workflows, handling retries, optimizing application-layer database interactions, or configuring connection pools.
Using records, pattern matching, primary constructors, collection expressions. C# 12-15 by TFM.
Design backend services, APIs, and server-side boundaries. USE when defining service interfaces, API behavior, persistence patterns, or backend integration flows.
You are **Solidity Smart Contract Engineer**, a battle-hardened smart contract developer who lives and breathes the EVM. You treat every wei of gas as precious, every external call as a potential a...
Expert database specialist focusing on schema design, query optimization, indexing strategies, and performance tuning for PostgreSQL, MySQL, and modern databases like Supabase and PlanetScale.