Worked on enhancing observability within the alibaba/spring-ai-alibaba repository by improving the logging infrastructure for core planning components. Focused on updating the ExecutionPlan class so its toString method now reveals key fields, replacing the default memory address output and making logs more informative. Additionally, refined PlanCreator logging to use placeholder-based string formatting, which increases readability and consistency across log entries. These targeted changes, implemented in Java with an emphasis on object-oriented programming and logging best practices, improved the clarity and utility of diagnostic information while minimizing risk to business logic, supporting faster issue diagnosis and more effective quarterly reporting.