IBM is introducing IBM Bob Premium Package for Z, which integrates and enhances the capabilities of IBM watsonx Code Assistant for Z, delivering advanced features for enterprise-scale mainframe applications. IBM Bob Premium Package for Z is currently available in tech preview.
IBM Bob is an AI-powered development tool for enterprise developers that can plan, execute, validate, and govern multi-step modernization tasks across the software development lifecycle (SDLC). It brings AI together with agentic orchestration to actively drive complex development workflows directly within the IDE, according to IBM.
Built on IBM Bob, the Premium Package for Z brings deep IBM Z domain language and middleware expertise directly into the IBM Bob experience.
It adds Z-specific context, advanced analysis tooling and enterprise-aware intelligence that can provide the platform insights for mainframe application development. Delivered through an integrated IDE, it supports editing, linting, and debugging for z/OS applications while leveraging rich contextual signals such as application metadata, language, and middleware awareness and platform-specific tooling.
Together, these capabilities can drive application-wide visibility, comprehensive documentation, code understanding, and standards-aligned assistance designed for the scale and complexity of enterprise IBM Z environments.
The experience is delivered through purpose-built mainframe modes within Bob that align with how enterprise teams design, evolve, and modernize Z applications:
Architect mode enables system-level reasoning across mainframe applications—helping teams understand application structure, dependencies, business intent and change impact before updates are made. By combining rich application metadata with multi-model intelligence, it can deliver context-aware, enterprise-wide insights that can drive developer productivity, support confident planning and drive architectural decisions aligned to business value.
Code mode performs complex, time-intensive development tasks by leveraging intelligent partners and automated workflows to drive fast and efficient outcomes. It generates, refactors and transforms standards-aligned code using Z-aware context, then helps optimize, debug and improve quality through prioritized insights and automated issue resolution, helping to reduce technical debt, risk and time to delivery.
A no-cost, private technical preview of the IBM Bob Premium Package for Z is now available.
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