Harness-engineering gof-observer-pattern

name: gof-observer-pattern version: "1.0.0" description: Implement push-based notification between Subject and Observer with typed subscriptions stability: static cognitive_mode: advisory-guide type: knowledge tier: 3 triggers:

• manual platforms:
• claude-code
• gemini-cli
• cursor
• codex tools: [] paths:
• "**/*.ts"
• "tsconfig.json" related_skills:
• node-event-emitter
• events-pubsub-pattern
• gof-mediator-pattern stack_signals:
• typescript keywords:
• observer
• Subject
• subscribe
• event-emitter
• RxJS
• weak-references metadata: author: community upstream: refactoring.guru/design-patterns/observer state: persistent: false files: [] depends_on: []