opencode-workflow/skills/design-patterns/observer/SKILL.md

Observer Pattern

Description

Define a one-to-many dependency relationship so that when one object's state changes, all dependent objects are notified and automatically updated.

Use Cases

Load this skill when you need to solve design problems described by this pattern in your code.

Guidelines

1. Analyze whether current code structure matches the pattern's intent.
2. Refactor or implement following the pattern's typical structure.
3. Ensure the pattern introduction reduces coupling or improves flexibility.

Detailed Reference

For more details, diagrams, and code examples: Observer Pattern - RefactoringGuru