skills.rest
iii-hq
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iii-pubsub

Publish messages to named topics for all registered subscribers.

Updated Aug 27, 2026
Search Tags:#messaging#real-time#event-driven#broadcasting#pubsub#fan-out
One-click install
npx skills add https://github.com/iii-hq/skills --skill iii-pubsub
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: iii-pubsub
Source: https://github.com/iii-hq/skills/tree/main/iii-pubsub
Command: npx skills add https://github.com/iii-hq/skills --skill iii-pubsub

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill enables efficient, topic-based message broadcasting, allowing a single event to be delivered to multiple interested parties simultaneously, decoupling services and facilitating real-time communication.

Core Features & Use Cases

  • Topic-Based Broadcasting: Publish messages to named topics, with all active subscribers receiving them.
  • Event-Driven Decoupling: Publishers and subscribers operate independently, reducing system complexity.
  • Fan-Out Patterns: Ideal for scenarios like real-time notifications, cache invalidation, or distributing tasks to multiple workers.
  • Use Case: When a user's profile is updated, publish an event to the 'user.updated' topic. Multiple services (e.g., email notification service, analytics service, cache invalidation service) can subscribe to this topic and react accordingly.

Quick Start

Use the iii-pubsub skill to publish a message to the 'user.created' topic with the provided user data.

Frequently Asked Questions about iii-pubsub

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I broadcast events to multiple subscribers in an event-driven architecture?▼

Topic-based message broadcasting delivers a single published event to all active subscribers simultaneously, enabling event-driven decoupling for real-time notifications and fan-out patterns across independent services.

What is the best way to handle cache invalidation across multiple services?▼

Cache invalidation uses topic-based broadcasting to publish an update event, allowing all subscribed cache invalidation services to receive the message and react accordingly without tightly coupling system components.

Can I use Python, TypeScript, and Rust SDKs for real-time message broadcasting?▼

Yes, real-time message broadcasting supports integration through dedicated Python, TypeScript, and Rust SDKs, allowing various application components to publish and subscribe to named topics.

How do I set up pubsub messaging for multi-instance deployments?▼

Multi-instance pubsub messaging deployments are supported using an optional Redis adapter, which connects multiple application instances to ensure consistent message delivery across distributed environments.

When do I need a fan-out messaging pattern for real-time notifications?▼

You need a fan-out messaging pattern when a single event, such as a user profile update, must trigger parallel reactions from multiple distinct services like email notifications, analytics, and cache invalidation.

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