id = "code-012"
title = "Implement Design Patterns"
domain = "code-assistance"
level = "L3"
description = "Implement Singleton and Observer design patterns with proper instance management, subscriber notification, and thread safety"
timeout = 180
capabilities = ["code-write"]
skills_allowed = true
tags = ["python", "design-patterns", "classes"]
capability_types = ["reasoning", "tool-use"]
