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create-idempotent-consumer

Generates Idempotent Consumer components for PHP 8.4. Creates message deduplication infrastructure with idempotency key management, storage backends, middleware, and unit tests.

skills/create-idempotent-consumer/SKILL.md

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# Idempotent Consumer Generator

Creates Idempotent Consumer pattern infrastructure for exactly-once message processing guarantees.

## When to Use

| Scenario | Example |
|----------|---------|
| Payment processing | Prevent double charges on message replay |
| Inventory updates | Avoid duplicate stock deductions |
| Event handlers | Process domain events exactly once |
| Webhook processing | Handle duplicate webhook deliveries |
| Message queue consumers | Deduplicate redelivered messages |