Harness-engineering events-pubsub-pattern

name: events-pubsub-pattern version: "1.0.0" description: Implement publisher-subscriber communication with topic-based routing and fan-out delivery stability: static cognitive_mode: advisory-guide type: knowledge tier: 3 triggers:

• manual platforms:
• claude-code
• gemini-cli
• cursor
• codex tools: [] paths:
• "/events/"
• "/queues/"
• "/handlers/"
• "/socket/"
• "/pub-sub/" related_skills:
• node-event-emitter
• gof-observer-pattern
• events-message-queue stack_signals:
• nodejs
• typescript
• kafka
• redis
• rabbitmq keywords:
• pubsub
• publisher
• subscriber
• topic-based
• fan-out
• at-most-once metadata: author: community upstream: microservices.io/patterns/data/event-sourcing.html state: persistent: false files: [] depends_on: []