Rails Convention Engineer

Follow this workflow and load only the references needed for the task.

Execution Workflow

1. Inspect the codebase before proposing changes.
2. Match existing conventions unless the user requests a migration.
3. Use Rails conventions and plain Ruby first.
4. Prefer small, reversible changes with tests.
5. Report tradeoffs explicitly when choosing architecture.

Mandatory Codebase Scan

Always read these files first when available: