Event Sourcing Migrator Skill Skill

Event Sourcing Migrator Skill

Migrates applications to event-sourcing architecture, handling event extraction from existing data, event store setup, and CQRS implementation.

Purpose

Enable event sourcing migration for:

Event extraction from existing data
Event store setup
Projection generation
CQRS implementation
Snapshot management

Capabilities

1. Event Extraction from Existing Data

Analyze current state
Derive historical events
Generate event streams
Handle data gaps

2. Event Store Setup

Configure event store
Set up partitioning
Define retention
Implement subscriptions

3. Projection Generation

Create read models
Build projections
Handle updates
Manage consistency

4. CQRS Implementation

Separate read/write
Implement commands
Handle queries
Manage eventual consistency

5. Snapshot Management

Define snapshot strategy
Generate snapshots
Handle restoration
Optimize performance

6. Event Replay

Replay events
Rebuild projections
Handle migrations
Test consistency

Tool Integrations

| Tool | Purpose | Integration Method | |------|---------|-------------------| | EventStore | Event database | CLI/API | | Axon Framework | Java event sourcing | Library | | Marten | .NET event store | Library | | EventStoreDB | Event store | CLI | | Custom stores | PostgreSQL/Kafka | Library |

Output Schema

{
  "migrationId": "string",
  "timestamp": "ISO8601",
  "eventStore": {
    "type": "string",
    "streams": "number",
    "events": "number"
  },
  "projections": [
    {
      "name": "string",
      "status": "string",
      "lastPosition": "number"
    }
  ],
  "snapshots": {
    "enabled": "boolean",
    "count": "number"
  }
}

Integration with Migration Processes

monolith-to-microservices: Event-driven architecture
database-schema-migration: Data transformation

Related Skills

domain-model-extractor: Event discovery

Related Agents

data-architect-agent: Event architecture

Agent Skills: Event Sourcing Migrator Skill

Install this agent skill to your local

Skill Files