create-idempotency-handler
Installation
SKILL.md
Idempotency Handler Generator
Creates idempotency handling infrastructure for safe request deduplication.
When to Use
| Scenario | Example |
|---|---|
| Payment processing | Prevent duplicate charges on retry |
| Order creation | Avoid duplicate orders from network retries |
| Webhook handling | Deduplicate incoming webhook deliveries |
| API mutations | Ensure POST/PUT/PATCH safety on retry |
Component Characteristics
IdempotencyKey
- Value Object validating UUID v4 format
- Immutable, self-validating on construction
- Extracted from
Idempotency-KeyHTTP header