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Configure structured logging with Pino, Prometheus metrics, and health checks for NestJS services. Use when adding JSON logging, request tracing with correlation IDs, Prometheus metric endpoints, or liveness/readiness health checks.
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Retrieves up-to-date documentation, API references, and code examples for any developer technology. Use this skill whenever the user asks about a specific library, framework, SDK, CLI tool, or cloud service -- even for well-known ones like React, Next.js, Prisma, Express, Tailwind, Django, or Spring Boot. Your training data may not reflect recent API changes or version updates. Always use for: API syntax questions, configuration options, version migration issues, "how do I" questions mentioning a library name, debugging that involves library-specific behavior, setup instructions, and CLI tool usage. Use even when you think you know the answer -- do not rely on training data for API details, signatures, or configuration options as they are frequently outdated. Always verify against current docs. Prefer this over web search for library documentation and API details.
Create a concrete plan before starting a multi-file refactor. Use when the user asks to plan, sequence, scope, or safely execute a refactor across multiple files; always investigate first, output the plan, and wait for confirmation before making code changes.
Master React Native styling, navigation, and Reanimated animations for cross-platform mobile development. Use when building React Native apps, implementing navigation patterns, or creating performant animations.
Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations. Applies to tasks involving Hermes optimization, JS thread blocking, bridge overhead, FlashList, native modules, or debugging jank and frame drops.
Design Flutter applications to scale by strictly adhering to architectural principles: enforce separation of concerns, maintain single source of truth, implement unidirectional data flow, and treat UI as a function of state. Use when structuring layers, implementing data layer with services and repositories, or following feature implementation workflow.
A comprehensive Flutter UI library inspired by shadcn/ui. Provides high-quality, customizable, and accessible components including Buttons, Cards, Forms, and more. Use this skill when building Flutter UIs, implementing design systems, or needing specific component usage examples.
| name | nestjs-observability |
| description | Configure structured logging with Pino, Prometheus metrics, and health checks for NestJS services. Use when adding JSON logging, request tracing with correlation IDs, Prometheus metric endpoints, or liveness/readiness health checks. |
| license | MIT |
| version | 1.0.0 |
| author | [Filippo De Silva](https://github.com/FilippoDeSilva) |
| tags | ["nestjs","observability","pino","prometheus","health-check","correlation-id"] |
| metadata | {"triggers":{"files":["main.ts","**/*.module.ts"],"keywords":["nestjs-pino","Prometheus","Logger","reqId"]}} |
Use nestjs-pino for high-performance, async JSON logging. Node's console.log blocking and unstructured.
reqId. nestjs-pino handles this via AsyncLocalStorage.x-request-id to downstream microservices and database queries for end-to-end tracing.Expose /metrics for Prometheus scraping using @willsoto/nestjs-prometheus.
TypeOrmHealthIndicator / PrismaHealthIndicator.X-Response-Duration-Ms, X-DB-Execution-Ms, X-API-Overhead-MsENABLE_PERFORMANCE_BENCHMARK feature flag; never expose in production.x-request-id header to all downstream services and queries.ENABLE_PERFORMANCE_BENCHMARK flag.