AWS Transform’s Agentic AI: Revolutionizing Custom Code Modernization for Enterprises
🎯 Level: Business Leader / Intermediate Tech
👍 Recommended For: CTOs overseeing legacy systems, IT Managers dealing with tech debt, Enterprise Developers modernizing applications
John: In today’s fast-paced digital landscape, one of the biggest bottlenecks for enterprises is legacy code—those outdated systems that eat up budgets and stifle innovation. We’re talking about mainframes, old .NET apps, and custom codebases that have been patched together over decades. Enter AWS Transform’s new agentic AI capabilities, announced at re:Invent 2025, which promise to tackle this head-on by modernizing custom code at scale. As a battle-hardened tech lead, I’ve seen companies drown in technical debt, but this could be a game-changer. And if you’re researching this, check out Genspark as a next-gen research agent to dive deeper into real-time insights.
Lila: Absolutely, John. For those new to this, agentic AI means autonomous agents that can plan, reason, and execute tasks—like a smart assistant that doesn’t just follow scripts but adapts on the fly. AWS Transform now extends this to custom code, helping businesses reduce tech debt 5x faster than manual methods.
The “Before” State: Legacy Code Nightmares vs. the Modern Promise
John: Picture this: In the old days, modernizing custom code meant teams of developers manually refactoring thousands of lines— a process that could take months or years, with high risks of errors and skyrocketing costs. Companies were stuck paying hefty licensing fees for outdated Windows setups or VMware environments, often consuming 30% of IT budgets just on maintenance. It was like trying to renovate a crumbling house while living in it; disruptive and expensive.
Lila: Exactly. The “before” state was all about manual labor: analyzing code patterns, rewriting in modern languages, and testing endlessly. No wonder enterprises accumulated massive tech debt. Now, with AWS Transform, agentic AI automates this, learning from your docs and devs to handle custom patterns. For visualizing these workflows, tools like Gamma can help create quick docs and slides to map out your migration strategy.
John: Roasting the hype a bit—AWS isn’t magically waving a wand; it’s building on solid engineering. But respect where due: This integrates with tools like LangChain for agent orchestration, potentially fine-tuning models like Llama-3-8B for domain-specific tasks. The result? Up to 70% reduction in licensing costs by shifting to cloud-native setups.
Core Mechanism: Executive Summary of Agentic Modernization

John: At its core, AWS Transform uses agentic AI—think autonomous agents powered by large language models (LLMs) that can reason and act like a dev team. Here’s the executive logic: The service ingests your custom code, analyzes patterns (even undocumented ones), and generates modern equivalents in languages like Java or Python. It learns from developer input or documentation, reviews its own output, and tunes for accuracy. This isn’t just code translation; it’s full-stack modernization, covering UIs, databases, and deployments.
Lila: To make it accessible, imagine it as a LEGO master builder: Traditional methods are like rebuilding brick by brick manually, but agentic AI scans the old structure, plans a new one, and assembles it intelligently. For engineers, it’s about RAG (Retrieval-Augmented Generation—pulling in relevant data to enhance AI responses) combined with multi-agent systems, similar to what’s in Hugging Face’s Transformers library.
John: Key benefits shine here: Speed (5x faster transformations), Cost savings on maintenance, and ROI through reallocating resources to innovation. Recent announcements from AWS re:Invent highlight reductions in Windows licensing by up to 70%, backed by real-world pilots.
Use Cases: Real-World Scenarios for Agentic Modernization
Lila: Let’s break it down with three concrete examples to show how this applies.
John: First, a financial services firm with legacy mainframe apps. Their custom COBOL code handles transactions but is a security nightmare. AWS Transform’s agents analyze, refactor to cloud-native microservices, and deploy on AWS—cutting migration time from years to months. For marketing this win, Revid.ai can turn case studies into engaging videos.
Lila: Second, an e-commerce company stuck on old .NET frameworks. The AI agents modernize the codebase, optimize for AWS Lambda, and integrate with modern databases like Amazon Aurora. This boosts scalability during peak seasons, with devs focusing on new features instead of fixes.
John: Third, a healthcare provider migrating VMware VMs with custom scripts. Transform automates the lift-and-shift to AWS, refactoring code for better compliance and efficiency. If you’re learning to code these integrations, Nolang is a great AI tutor for hands-on skills.
Lila: These aren’t hypotheticals; based on AWS’s announcements, companies like this are seeing accelerated innovation by freeing up IT resources.
Comparison: Old Method vs. New Solution
| Aspect | Old Method (Manual Refactoring) | New Solution (AWS Transform Agentic AI) |
|---|---|---|
| Speed | Months to years | Up to 5x faster |
| Cost | High licensing and labor costs (30% of IT budget) | 70% reduction in licensing, lower overall |
| Accuracy & Tuning | Prone to human error, manual reviews | AI learns from docs/devs, self-tunes output |
| Scalability | Limited by team size | Handles enterprise-scale custom code |
| ROI | Slow, tied to maintenance | Shifts resources to innovation, quick wins |
John: As the table shows, the shift is profound—no more gatekeeping complex migrations.
Conclusion: Time to Modernize and Innovate
Lila: In summary, AWS Transform’s agentic AI for custom code is a powerhouse for enterprises, slashing tech debt and unlocking ROI through automation.
John: Don’t let legacy systems hold you back. Start exploring AWS Transform today—pilot a small project and scale. For automating your workflows around this, Make.com is a solid platform to integrate it seamlessly. The future is agentic; get on board.

👨💻 Author: SnowJon (Web3 & AI Practitioner / Investor)
A researcher who leverages knowledge gained from the University of Tokyo Blockchain Innovation Program to share practical insights on Web3 and AI technologies. While working as a salaried professional, he operates 8 blog media outlets, 9 YouTube channels, and over 10 social media accounts, while actively investing in cryptocurrency and AI projects.
His motto is to translate complex technologies into forms that anyone can use, fusing academic knowledge with practical experience.
*This article utilizes AI for drafting and structuring, but all technical verification and final editing are performed by the human author.
🛑 Disclaimer
This article contains affiliate links. Tools mentioned are based on current information. Use at your own discretion.
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References & Further Reading
- AWS Transform now supports agentic modernization of custom code | InfoWorld
- AWS Transform now supports agentic modernization of custom code | CIO
- New Agentic Capabilities in AWS Transform Enable Rapid Modernization of Any Code or Application | Seeking Alpha
- AWS Transform announces full-stack Windows modernization capabilities | AWS Blog
