AI BriefingShow HN: An Agentic Interface for Mainframe and COBOL
·2026.05.13 02:10
Key point
Hopper, an AI agent-based environment for mainframe development, has been unveiled.
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Details
Hopper is the first Agentic Development Environment for mainframes. It leverages AI agents to support TN3270 navigation, dataset inspection, JCL writing, job debugging, VSAM querying, and z/OS operations within a modern development environment.
Key features include:
- ISPF panel ID-driven operation and column-strict JCL authoring
- Decoding Spool failure logs into structured diagnostic data
- SQL-like querying of VSAM data
- Completing compilation, testing, and CICS deployment (NEWCOPY) with a single prompt, with all changes executed only after user approval
The project was developed with researchers and engineers from major tech companies including Cognition, Apple, Windsurf, Deloitte, and ADP.
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