event-store-design
starsforks
How to install event-store-design?
wshobson/agents/event-store-design
$npx -y skills add wshobson/agents --skill event-store-designDesign and implement event stores for event-sourced systems. Use when building event sourcing infrastructure, choosing event store technologies, or implementing event persistence patterns.
SKILL.md
| 1 | # Event Store Design |
| 2 | |
| 3 | Comprehensive guide to designing event stores for event-sourced applications. |
| 4 | |
| 5 | ## When to Use This Skill |
| 6 | |
| 7 | - Designing event sourcing infrastructure |
| 8 | - Choosing between event store technologies |
| 9 | - Implementing custom event stores |
| 10 | - Optimizing event storage and retrieval |
| 11 | - Setting up event store schemas |
| 12 | - Planning for event store scaling |
| 13 | |
| 14 | ## Core Concepts |
| 15 | |
| 16 | ### 1. Event Store Architecture |
| 17 | |
| 18 | ``` |
| 19 | ┌─────────────────────────────────────────────────────┐ |
| 20 | │ Event Store │ |
| 21 | ├─────────────────────────────────────────────────────┤ |
| 22 | │ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │ |
| 23 | │ │ Stream 1 │ │ Stream 2 │ │ Stream 3 │ │ |
| 24 | │ │ (Aggregate) │ │ (Aggregate) │ │ (Aggregate) │ │ |
| 25 | │ ├─────────────┤ ├─────────────┤ ├─────────────┤ │ |
| 26 | │ │ Event 1 │ │ Event 1 │ │ Event 1 │ │ |
| 27 | │ │ Event 2 │ │ Event 2 │ │ Event 2 │ │ |
| 28 | │ │ Event 3 │ │ ... │ │ Event 3 │ │ |
| 29 | │ │ ... │ │ │ │ Event 4 │ │ |
| 30 | │ └─────────────┘ └─────────────┘ └─────────────┘ │ |
| 31 | ├─────────────────────────────────────────────────────┤ |
| 32 | │ Global Position: 1 → 2 → 3 → 4 → 5 → 6 → ... │ |
| 33 | └─────────────────────────────────────────────────────┘ |
| 34 | ``` |
| 35 | |
| 36 | ### 2. Event Store Requirements |
| 37 | |
| 38 | | Requirement | Description | |
| 39 | | ----------------- | ---------------------------------- | |
| 40 | | **Append-only** | Events are immutable, only appends | |
| 41 | | **Ordered** | Per-stream and global ordering | |
| 42 | | **Versioned** | Optimistic concurrency control | |
| 43 | | **Subscriptions** | Real-time event notifications | |
| 44 | | **Idempotent** | Handle duplicate writes safely | |
| 45 | |
| 46 | ## Technology Comparison |
| 47 | |
| 48 | | Technology | Best For | Limitations | |
| 49 | | ---------------- | ------------------------- | -------------------------------- | |
| 50 | | **EventStoreDB** | Pure event sourcing | Single-purpose | |
| 51 | | **PostgreSQL** | Existing Postgres stack | Manual implementation | |
| 52 | | **Kafka** | High-throughput streaming | Not ideal for per-stream queries | |
| 53 | | **DynamoDB** | Serverless, AWS-native | Query limitations | |
| 54 | | **Marten** | .NET ecosystems | .NET specific | |
| 55 | |
| 56 | ## Templates and detailed worked examples |
| 57 | |
| 58 | Full template library and detailed worked examples live in `references/details.md`. Read that file when you need the concrete templates. |
| 59 | |
| 60 | ## Best Practices |
| 61 | |
| 62 | ### Do's |
| 63 | |
| 64 | - **Use stream IDs that include aggregate type** - `Order-{uuid}` |
| 65 | - **Include correlation/causation IDs** - For tracing |
| 66 | - **Version events from day one** - Plan for schema evolution |
| 67 | - **Implement idempotency** - Use event IDs for deduplication |
| 68 | - **Index appropriately** - For your query patterns |
| 69 | |
| 70 | ### Don'ts |
| 71 | |
| 72 | - **Don't update or delete events** - They're immutable facts |
| 73 | - **Don't store large payloads** - Keep events small |
| 74 | - **Don't skip optimistic concurrency** - Prevents data corruption |
| 75 | - **Don't ignore backpressure** - Handle slow consumers |
People who liked this also viewed
6 picksType
- web-design-guidelinesReview UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".SkillsJul 2026
- lark-slides飞书幻灯片：创建和编辑幻灯片。创建演示文稿、读取幻灯片内容、管理幻灯片页面（创建、删除、读取、局部替换）。当用户需要创建或编辑幻灯片、读取或修改单个页面时使用。当用户给出 doubao.com 的 /slides/ URL/token 时，也应直接使用本 skill，不要因为域名不是飞书而回退到 WebFetch；路由依据是 URL 路径模式和 token，而不是域名。不负责：云文档内容编辑（走 SkillsJul 2026
- design-taste-frontendTaste-Skill - gives your AI good taste. stops the AI from generating boring, generic slop SkillsJul 2026
- ui-ux-pro-maxUI/UX design intelligence for web and mobile. Searchable local database with 84 styles, 192 color palettes, 74 font pairings, 192 product types, 98 UX guidelines, 104 icon entries, 16 GSAP motion presSkillsJul 2026
- caveman-helpQuick-reference card for all caveman modes, skills, and commands. One-shot display, not a persistent mode. Trigger: /caveman-help, "caveman help", "what caveman commands", "how do I use caveman".SkillsJul 2026
- codebase-designShared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a seam goes, make code more testable or AI-nSkillsJul 2026
