What is a Snapshot in event sourcing?

A snapshot is an immutable point-in-time capture of an aggregate's state, used to avoid replaying the entire event history every time an aggregate is reconstructed from the database.

How does this skill improve system performance?

By implementing a threshold-based strategy (e.g., every 100 events), the system only needs to load the latest snapshot and replay a small number of recent events, significantly reducing CPU and memory overhead.

Is the generated code compatible with modern PHP standards?

Yes, the skill is specifically designed for PHP 8.4, utilizing modern features like readonly classes, constructor property promotion, and strict typing for clean, maintainable architecture.

What storage options are provided by this skill?

The skill generates a domain-driven SnapshotStoreInterface and a concrete implementation using Doctrine DBAL, which is compatible with major SQL databases like MySQL, MariaDB, and PostgreSQL.

PHP Snapshot Pattern Generator

Name: PHP Snapshot Pattern Generator
Author: dykyi-roman

bydykyi-roman

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Database Management

Generates Snapshot pattern infrastructure for PHP 8.4 to optimize event sourcing aggregate rebuild performance.

This skill automates the creation of a comprehensive Snapshot architecture for PHP 8.4 event-sourced applications. It generates immutable snapshot value objects, persistence interfaces, configurable threshold strategies, and the application services needed to coordinate state capture. By saving aggregate state at specific intervals, it dramatically reduces the time and resources required to rebuild aggregates with long event histories, making it ideal for high-scale Domain-Driven Design (DDD) and Hexagonal systems where performance is critical.

Key Features

01Automates SQL migration generation for snapshot database tables

02Includes configurable event threshold strategies for automatic state capture

03Generates immutable PHP 8.4 Snapshot value objects with serialization

04Produces a full suite of unit tests for domain and application layers

05Creates SnapshotStoreInterface with Doctrine DBAL infrastructure implementations

0645 GitHub stars

Use Cases

01Implementing scalable state persistence for complex DDD business logic

02Optimizing read-side performance in CQRS and Event Sourcing systems

03Accelerating aggregate reconstruction for aggregates with 100+ events

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dykyi-roman/awesome-claude-code create-snapshot

For use in Claude.ai and ChatGPT

Download Skill