About

Imported from shipshitdev/skills (skills/error-handling-expert/SKILL.md). Install upstream with npx skills add shipshitdev/skills --skill error-handling-expert. Copyright stays with the author.

Error Handling Expert Skill

Name: error-handling-expert
Author: shipshitdev

When to Use

Implementing error handling
Creating exception filters
Designing error responses
Setting up error logging
Implementing error recovery
Handling async errors
Creating error boundaries
Implementing retry logic

Project Context Discovery

Before providing guidance:

Check .agents/memory/ for project architecture and error patterns
Review existing exception filters
Check for error monitoring (Sentry, Rollbar)
Review logging libraries (Winston, Pino)

Core Principles

Error Types

Application Errors: 400, 401, 403, 404, 409, 422 System Errors: 500, 502, 503, 504

Error Response Format

{
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Validation failed",
    "details": [...],
    "timestamp": "2025-01-01T00:00:00Z",
    "path": "/api/users",
    "requestId": "req-123456"
  }
}

Quick Patterns

NestJS Exception Filter

@Catch()
export class AllExceptionsFilter implements ExceptionFilter {
  catch(exception: unknown, host: ArgumentsHost) {
    // Log, format, respond
  }
}

React Error Boundary

class ErrorBoundary extends React.Component {
  componentDidCatch(error, errorInfo) {
    // Log to monitoring
  }
}

Retry with Backoff

async function retryWithBackoff<T>(fn, maxRetries = 3): Promise<T>

Best Practices

User-friendly messages, no sensitive info
Log all errors with context
Integrate error monitoring (Sentry)
Implement retry logic and circuit breakers
Provide fallback values
Test error cases

Recovery Strategies

Retry Logic - Exponential backoff
Circuit Breaker - Prevent cascade failures
Fallback Values - Graceful degradation

For complete exception filter implementations, custom exceptions, validation pipe setup, error boundaries, circuit breaker pattern, logging integration, and database/API error patterns, see: references/full-guide.md

Use it

Copy one of these into your project. Installing also returns the manifest and these snippets.

yaml

targets:
  - https://api.opensmartroute.ai/api/v1/registry/shipshitdev-skills-error-handling-expert/manifest   # or paste the manifest below

Manifest

An Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.

shipshitdev-skills-error-handling-expert.ocm.jsonjson

{
  "ocm": "1",
  "id": "shipshitdev-skills-error-handling-expert",
  "kind": "skill",
  "name": "error-handling-expert",
  "description": "Expert in error handling patterns, exception management, error responses, logging, and error recovery strategies for React, Next.js, and NestJS applications. Use when implementing error handling, exception filters, error responses, error logging, or recovery strategies.",
  "publisher": "shipshitdev",
  "version": "1.0.0",
  "capabilities": {
    "domains": [
      "coding"
    ],
    "tags": [
      "skill-md",
      "errors",
      "reliability",
      "architecture",
      "skills-sh"
    ],
    "languages": [
      "en"
    ]
  },
  "quality_prior": 0.6,
  "examples": [
    "Expert in error handling patterns, exception management, error responses, logging, and error recovery strategies for React, Next.js, and NestJS applications. Use when implementing error handling, exception filters, error responses, error logging, or recovery strategies."
  ],
  "primary": false,
  "metadata": {
    "source": {
      "provider": "skills.sh",
      "repository": "https://github.com/shipshitdev/skills",
      "path": "skills/error-handling-expert/SKILL.md",
      "ref": "HEAD",
      "url": "https://github.com/shipshitdev/skills/blob/HEAD/skills/error-handling-expert/SKILL.md",
      "key": "shipshitdev/skills/skills/error-handling-expert/SKILL.md"
    }
  },
  "instructions": "# Error Handling Expert Skill\n\n## When to Use\n\n- Implementing error handling\n- Creating exception filters\n- Designing error responses\n- Setting up error logging\n- Implementing error recovery\n- Handling async errors\n- Creating error boundaries\n- Implementing retry logic\n\n## Project Context Discovery\n\nBefore providing guidance:\n\n1. Check `.agents/memory/` for project architecture and error patterns\n2. Review existing exception filters\n3. Check for error monitoring (Sentry, Rollbar)\n4. Review logging libraries (Winston, Pino)\n\n## Core Principles\n\n### Error Types\n\n**Application Errors:** 400, 401,",
  "cost": {
    "context_tokens": 504
  }
}

Fetch it by URL: GET /api/v1/registry/shipshitdev-skills-error-handling-expert/manifest?version=1.0.0

Reviews

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