Transaction Consistency Designer

Source mapping: Tier 1 critical skill derived from Kotlin_Spring_Developer_Pipeline.md (SK-09).

Mission

Place transaction boundaries where business invariants are actually enforced, not where annotations are easiest to type. Prevent data loss, duplicate side effects, and hidden consistency bugs.

Gather These Inputs

• The business workflow step by step.
• The repositories and tables touched by each step.
• Current @Transactional annotations, propagation, isolation, and exception handling.
• Any external HTTP, message broker, scheduler, or file I/O inside the workflow.
• Idempotency, retry, and concurrency requirements.

Model The Workflow Explicitly