Master error handling patterns across languages including exceptions, Result types, error propagation, and graceful degradation to build resilient applications. Use when implementing error handling, d
The skill file stays in the publisher's repository.
Paste the copied command in a terminal. It installs this SKILL.md into that agent.
npx skills add wshobson/agents --skill error-handling-patterns -a cursor -y
Master error handling patterns across languages including exceptions, Result types, error propagation, and graceful degradation to build resilient applications. Use when implementing error handling, designing APIs, or improving application reliability.
Master error handling patterns across languages including exceptions, Result types, error propagation, and graceful degradation to build resilient applications. Use when implementing error handling, designing APIs, or improving application reliability.
Build resilient applications with robust error handling strategies that gracefully handle failures and provide excellent debugging experiences.
Exceptions vs Result Types:
When to Use Each:
Recoverable Errors:
Unrecoverable Errors:
Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.
# Good error handling example
def process_order(order_id: str) -> Order:
"""Process order with comprehensive error handling."""
try:
# Validate input
if not order_id:
raise ValidationError("Order ID is required")
# Fetch order
order = db.get_order(order_id)
if not order:
raise NotFoundError("Order", order_id)
# Process payment
try:
payment_result = payment_service.charge(order.total)
except PaymentServiceError as e:
# Log and wrap external service error
logger.error(f"Payment failed for order {order_id}: {e}")
raise ExternalServiceError(
f"Payment processing failed",
service="payment_service",
details={"order_id": order_id, "amount": order.total}
) from e
# Update order
order.status = "completed"
order.payment_id = payment_result.id
db.save(order)
return order
except ApplicationError:
# Re-raise known application errors
raise
except Exception as e:
# Log unexpected errors
logger.exception(f"Unexpected error processing order {order_id}")
raise ApplicationError(
"Order processing failed",
code="INTERNAL_ERROR"
) from e
except Exception hides bugs