error-code-guide

name	error-code-guide
scope	universal
description	Design consistent error codes following the PREFIX_CATEGORY_NUMBER format. Use when: defining error codes, creating error handling, designing APIs. Keywords: error code, error handling, error format, API errors.

Error Code Guide

Language: English | 繁體中文

Version: 1.0.0 Last Updated: 2025-12-30 Applicability: Claude Code Skills

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Core Standard: This skill implements Error Code Standards. For comprehensive methodology documentation, refer to the core standard.

Purpose

This skill helps design consistent error codes following the standard format, enabling better debugging, monitoring, and user experience.

Quick Reference

Error Code Format

<PREFIX>_<CATEGORY>_<NUMBER>

Component	Description	Example
PREFIX	Application/service identifier	AUTH, PAY, USR
CATEGORY	Error category	VAL, SYS, BIZ
NUMBER	Unique numeric identifier	001, 100, 404

Examples

AUTH_VAL_001    → Authentication validation error
PAY_SYS_503     → Payment system unavailable
USR_BIZ_100     → User business rule violation
API_NET_408     → API network timeout