Standardize error handling with a unified taxonomy and central middleware.
npx skills add https://github.com/accolver/skill-maker --skill error-handling-accolver
Please help me install this Agent Skill. Skill: error-handling Source: https://github.com/accolver/skill-maker/tree/main/error-handling Command: npx skills add https://github.com/accolver/skill-maker --skill error-handling-accolver
Standardize error handling across a codebase by implementing a unified error taxonomy, stable error codes, proper propagation chains, and structured logging. The core principle: every error must be categorized, coded, wrapped with context, and split into a safe user-facing message and a detailed internal log entry.
Create a new error-handling skill by implementing the base AppError, several domain errors, and a centralized middleware, then integrate it with your API routes and logging.
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Standardize API error handling by implementing a unified error taxonomy with stable error codes, proper propagation chains, and centralized middleware that converts errors into consistent HTTP responses and structured internal logs.
An error taxonomy is a classification system mapping domain-specific errors like ValidationError or NotFoundError to HTTP status codes and stable string codes, enabling consistent API responses and programmatic error matching across services.
Separate user-facing API errors from internal logs by returning safe messages with stable codes in HTTP responses, while logging full causal chains, stack traces, and structured context fields like correlationId internally.
Trace errors propagating through API layers by wrapping them with context using exception chaining, attaching a unique requestId, and logging the full causal chain and structured fields like path and method in centralized middleware.
Centralized error handling middleware works for existing API routes by acting as a single error boundary that intercepts thrown errors, converts them to a standardized response schema, and logs structured details without altering route logic.
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