Use when you need MongoDB persistence in Micronaut — including @MongoRepository design, document modeling, indexes, query patterns, and error handling. This should trigger for requests such as Add MongoDB in Micronaut; Review Micronaut Data Mongo design; Improve error handling for Micronaut Mongo operations; Model MongoDB documents for a Micronaut service; Configure Micronaut MongoDB codecs indexes or transactions. Part of Plinth Toolkit
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---
name: 515-frameworks-micronaut-mongodb
description: Use when you need MongoDB persistence in Micronaut — including @MongoRepository design, document modeling, indexes, query patterns, and error handling. This should trigger for requests such as Add MongoDB in Micronaut; Review Micronaut Data Mongo design; Improve error handling for Micronaut Mongo operations; Model MongoDB documents for a Micronaut service; Configure Micronaut MongoDB codecs indexes or transactions. Part of Plinth Toolkit
license: Apache-2.0
metadata:
author: Juan Antonio Breña Moral
version: 0.19.0
---
# Micronaut — MongoDB
Apply Micronaut MongoDB guidance with concrete examples for design, implementation, and error handling.
## Constraints
Compile before MongoDB 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 MongoDB in Micronaut
- Review Micronaut Mongo entities/repositories
- Improve duplicate key handling, retries, or optimistic locking in Micronaut Mongo
- Model MongoDB documents for a Micronaut service
- Configure Micronaut MongoDB codecs indexes or transactions
## Workflow
1. **Read reference and assess project context**
Read `references/515-frameworks-micronaut-mongodb.md` and inspect persistence setup before proposing changes.
2. **Gather scope and decide target improvements**
Identify model and consistency requirements and define safe improvements.
3. **Apply framework-aligned changes**
Implement/refactor documents, repositories, indexes, and error handling.
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/515-frameworks-micronaut-mongodb.md](references/515-frameworks-micronaut-mongodb.md).
