| name | 504-frameworks-micronaut-security |
| description | Use when you need to design, review, or improve security in Micronaut applications — including micronaut-security authentication, @Secured and intercept-url-map rules, JWT/session strategies, SecurityService checks, CORS, CSRF awareness for browser apps, rejection handlers, and sensitive-data-safe logging. This should trigger for requests such as Add Micronaut security support; Review Micronaut security configuration; Improve API authorization in Micronaut; Add JWT security in Micronaut; Harden Micronaut route authorization rules. Part of cursor-rules-java project |
| license | Apache-2.0 |
| metadata | {"author":"Juan Antonio Breña Moral","version":"0.16.0"} |
Micronaut Security Guidelines
Apply Micronaut security best practices with secure-by-default API boundaries.
What is covered in this Skill?
- Micronaut security configuration and authentication setup
- Authorization with @Secured and role-based policies
- Endpoint and route protection strategy
- Least-privilege design and policy boundaries
- Secure error/denial behavior
- Sensitive data handling in logs and responses
Scope: Apply recommendations based on the reference rules and good/bad examples.
Constraints
Before applying security changes, ensure the project compiles. After improvements, run full verification.
- 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 Micronaut security support
- Review Micronaut security configuration
- Improve API authorization in Micronaut
- Add JWT security in Micronaut
- Harden Micronaut route authorization rules
- Implement @Secured policies in Micronaut controllers
Workflow
- Read reference and assess project context
Read references/504-frameworks-micronaut-security.md and inspect the current project setup before proposing changes.
- Gather scope and decide target improvements
Identify requested outcomes, constraints, and the minimum safe set of changes to apply.
- Apply framework-aligned changes
Implement or refactor security-related configuration/code following the reference patterns and project conventions.
- Run verification and report results
Execute appropriate build/tests and summarize what changed, what was verified, and any follow-up actions.
Reference
For detailed guidance, examples, and constraints, see references/504-frameworks-micronaut-security.md.
