Read-only IMS for an agent: Universal JDBC or native DL/I?

The agent only needs to read an IMS database. When do we use Universal JDBC, and when do we use native DL/I?

Use IMS-DB Universal JDBC when you can reach IMS through ODBM and you want browse, query, and paging, with COBOL layouts in the catalog. Use native IMS-DLI when the hierarchy is not exposed through JDBC and you need PSB-scoped reads. Publish the access you approved. The agent should call that API, not open a DL/I batch job itself.