backend▌

Discover trait implementations and understand polymorphic designs.

X (Twitter) API v2 skill using the authenticated user's own developer credentials (OAuth 1.0a, pay-per-use). All commands go through a single entry point: node x.js <command> [flags]. Each command has its its own doc file with the full reference for flags and behavior.

Note: Use TablesDB (not the deprecated Databases class) for all new code. Only use Databases if the existing codebase already relies on it or the user explicitly requests it.

Master Gradle build tool with Kotlin DSL for Java projects.

Modern TypeScript development patterns for type safety, runtime validation, and optimal configuration.

Modern Go applications require comprehensive observability through the three pillars: traces, metrics, and logs. OpenTelemetry provides vendor-neutral instrumentation for distributed tracing, Prometheus offers powerful metrics collection, and Go's slog package (1.21+) delivers structured logging with minimal overhead.

Analyze project structure by examining symbols across your Rust codebase.

symfony:api-platform-serialization

Go's database ecosystem provides multiple layers of abstraction for SQL database integration. From the standard library's database/sql to enhanced libraries like sqlx and PostgreSQL-optimized pgx, developers can choose the right tool for their performance and ergonomics needs.

A comprehensive skill for building production-ready microservices using FastAPI. This skill covers REST API design patterns, asynchronous operations, dependency injection, testing strategies, and deployment best practices for scalable Python applications.