Hopper

Agentic development environment for the mainframe — drive z/OS, JCL, VSAM, and TN3270 with AI agents

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Hopper is an agentic development environment that lets AI agents interact with z/OS systems via TN3270, ISPF panels, JCL, spool and VSAM. It helps move legacy mainframe work out of green-screen workflows by inspecting datasets, composing column‑strict JCL, debugging jobs and decoding spool failures from a modern interface, aimed at mainframe developers, z/OS operations teams and enterprises maintaining COBOL systems.

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