ventyd

Implement type-safe event sourcing in TypeScript using the Ventyd library.

41|3|Updated Apr 11, 2023
One-click install
npx skills add https://github.com/daangn/ventyd --skill ventyd
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ventyd
Source: https://github.com/daangn/ventyd/tree/main/skill
Command: npx skills add https://github.com/daangn/ventyd --skill ventyd

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill eliminates the difficulty of implementing correct event sourcing in TypeScript, removing the risk of relying on outdated API knowledge and avoiding common errors that corrupt state or break functionality.

Core Features & Use Cases

  • Full Ventyd Workflow Guidance: Covers all core Ventyd concepts including event schema definition, reducer creation, entity business logic, repository setup, adapter integration, and plugin configuration for side effects like analytics and logging.
  • Proactive Error Prevention: Includes critical rules and troubleshooting for frequent issues such as type mismatches, incorrect event naming, reducer state mutation, and plugin error swallowing.
  • Real-World Use Cases: Ideal for building event-sourced systems like user management platforms, order tracking tools, or audit log services that require immutable state history and time-travel debugging.

Quick Start

Use the ventyd skill to build a type-safe event-sourced user entity with schema definition, reducer logic, and repository setup for persisting immutable state changes.

Frequently Asked Questions about ventyd

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

FAQPage Schema
What is the best way to implement type-safe event sourcing in TypeScript?

Type-safe event sourcing in TypeScript requires defining strict event schemas, creating reducers, and setting up repositories with adapters. This approach prevents state mutation and ensures immutable state history.

How do I define event schemas and reducers for an event-sourced entity?

To define event schemas and reducers, you specify the event structure and implement reducer logic to transition entity state without mutating it. This ensures correct state reconstruction from the event history.

Does event sourcing work with TypeScript for building audit log services?

Event sourcing works well with TypeScript for building audit log services and order tracking tools. It provides immutable state history and time-travel debugging capabilities by persisting state changes as a sequence of events.

How do I configure plugins for side effects in an event-sourced application?

Configuring plugins for side effects involves integrating plugins to handle analytics and logging without swallowing errors. This ensures side effects execute correctly alongside the core event sourcing workflow.

Why does my reducer state mutation break event sourcing functionality?

Reducer state mutation breaks functionality because event sourcing relies on immutable state transitions. Mutating state directly corrupts the event history and prevents accurate time-travel debugging and state reconstruction.