One of the most interesting challenges in enterprise development is working with legacy technologies. While many AI coding tools focus on modern languages and frameworks, a large number of business-critical applications still run on technologies such as RPG, COBOL, and the IBM i platform.
That's why this feedback from Takeshi Sugata, Director at MONO-X Inc., caught my attention.
"We use Bob for IBM i development, and one of its biggest strengths is its strong support for RPG and COBOL. Even with minimal instructions, it consistently gives spot-on answers, almost as if it can read between the lines."
Modernizing and maintaining legacy applications often requires specialized knowledge that can be difficult to find. Developers need to understand decades of business logic, platform-specific patterns, and technologies that aren't always covered by modern AI tools.
What stands out here is the ability to assist with both modern and established technologies. For organizations running critical IBM i workloads, support for RPG and COBOL can help teams navigate complex systems more effectively while preserving valuable institutional knowledge.
As AI adoption grows, one of the biggest opportunities may be helping organizations bridge the gap between legacy systems and modern development practices.
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