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Hopper: First Agentic Development Environment for Mainframe/COBOL

Hopper is the first agentic development environment tailored for mainframes and COBOL, combining a TN3270 terminal, mainframe-aware panels, and an AI agent to expedite debugging of mainframe workflows.

SourceProduct Hunt AIAuthor: Chris Messina
Hopper: First Agentic Development Environment for Mainframe/COBOL
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Under the source content permission, this page provides an editorial summary, key points, and a link to the original article.

Key points and analysis

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Key points

  • Hopper is the first agentic development environment for mainframes, akin to Cursor for mainframe systems.
  • It integrates a real TN3270 terminal, panels for datasets, jobs, members, and spool output, along with an AI agent that operates across z/OS workflows.
  • The AI agent can inspect datasets, edit PDS members, write JCL, submit jobs, parse JES output, and explain failures.
  • Available on Windows, Linux, and macOS.

Highlights and analysis are generated automatically and may contain errors. Check the original source.

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