Can it help me identify bugs in my projections?

Absolutely. The skill includes specific checklists to ensure your projections are idempotent and handle event ordering correctly to prevent data corruption.

Does it include help for event versioning?

Yes, it includes reference patterns for event schema evolution and versioning to help you manage long-running event streams without breaking your application.

Does this skill support modern PHP features?

Yes, it specifically utilizes PHP 8.4's readonly classes and modern property promotion to implement immutable events and aggregates according to best practices.

What is the main benefit of using this skill with Claude?

It provides a standardized framework and domain-specific knowledge that helps Claude avoid common Event Sourcing mistakes like mutable events or incorrect state reconstruction.

Event Sourcing Architecture Expert

Name: Event Sourcing Architecture Expert
Author: dykyi-roman

bydykyi-roman

•

Database Management

Implements and audits high-performance Event Sourcing architectures using PHP 8.4 patterns and Domain-Driven Design principles.

This skill equips Claude with a comprehensive knowledge base for Event Sourcing, enabling it to design robust, immutable event streams and aggregate root behaviors. It provides specific checklists for validating event schema evolution, projection idempotency, and snapshot strategies while enforcing PHP 8.4 best practices. Ideal for developers building complex distributed systems, it helps identify architectural violations like mutable events or direct state mutation and suggests corrective implementation patterns for scalable, auditable backends.

Key Features

01Includes detailed checklists for auditing event stores, projections, and aggregate consistency boundaries.

02Assists in building scalable read models (projections) with proper stream position tracking.

03Provides PHP 8.4 implementation patterns for immutable domain events and event-sourced aggregates.

04Offers guidance on event versioning and schema evolution to prevent breaking changes in production.

0545 GitHub stars

06Detects common architectural violations like non-idempotent projections or missing event metadata.

Use Cases

01Designing complex financial or tracking systems where a complete history of state changes is mission-critical.

02Refactoring traditional CRUD-based PHP applications into Event Sourced systems for better auditability.

03Conducting architectural audits of existing Event Sourcing implementations to find bottlenecks or anti-patterns.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dykyi-roman/awesome-claude-code event-sourcing-knowledge

For use in Claude.ai and ChatGPT

Download Skill