514-frameworks-micronaut-kafka

name: 514-frameworks-micronaut-kafka description: Use when you need Kafka messaging in Micronaut — including @KafkaClient and @KafkaListener design, @Serdeable serialization, topic/partition strategy, TestPropertyProvider integration tests, retries and dead-letter processing, and error handling. This should trigger for requests such as Add Kafka in Micronaut; Review Micronaut Kafka listeners; Improve retry and failure handling for Micronaut Kafka. Part of cursor-rules-java project license: Apache-2.0 metadata: author: Juan Antonio Breña Moral version: 0.15.0

Micronaut — Kafka messaging

Apply Micronaut Kafka guidance with concrete examples for design, implementation, and error handling.

Constraints

Compile before messaging refactors; verify after changes.

• MANDATORY: Run ./mvnw compile or mvn compile before applying any change
• SAFETY: If compilation fails, stop immediately
• VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
• BEFORE APPLYING: Read the reference for detailed rules and examples

When to use this skill

• Add Kafka in Micronaut
• Review Micronaut Kafka consumers/producers
• Improve retries, dead-letter handling, or idempotency in Micronaut Kafka

Workflow

1. Read reference and assess project context

Read references/514-frameworks-micronaut-kafka.md and inspect current messaging setup before proposing changes.

2. Gather scope and decide target improvements

Identify delivery guarantees and resilience requirements to define safe improvements.

3. Apply framework-aligned changes

Implement/refactor clients, listeners, and failure strategies in Micronaut Kafka.

4. Run verification and report results

Execute build/tests and summarize what changed, what was verified, and follow-up actions.

Reference

For detailed guidance, examples, and constraints, see references/514-frameworks-micronaut-kafka.md.