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AGENTIC MODERNIZATION

Agentic modernization

LLM agents prepare repetitive code changes; code review and tests verify each change. Our team remains responsible for architectural decisions.

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On this page3 sections
  1. What the agents do
  2. How we work
  3. Tooling

Repeated changes across a large codebase, dependency upgrades and test preparation can take up much of a team's time. We use LLM agents for that work, starting with the behavior to preserve and the acceptance criteria. Depending on the engagement model, architectural decisions and release approval sit with our team or with both teams together.

What the agents do

  • Architecture and data-flow analysis of older codebases
  • Characterization (snapshot/golden) tests generated from current behavior
  • Framework migrations: Java 8 to 21/25, AngularJS to React, .NET Framework to .NET 10, jQuery to TypeScript
  • Dependency upgrades with compatibility verification (beyond Dependabot and Renovate)
  • Replacing deprecated API calls with modern equivalents
  • Filling test coverage gaps and detecting flaky tests
  • Producing architecture notes, ADRs and runbooks

How we work

Before changing code, we map the data flow and generate characterization tests from current inputs and outputs. The agent then applies one transformation type at a time in small, readable pull requests. Every pull request passes build, test, static analysis and team review before merging.

When source code cannot leave your network, we run the agents against models hosted on your own Kubernetes cluster with vLLM or Ray Serve, and restrict network egress, tool connections and logging to match your security policy.

Tooling

Foundation models
Claude (Anthropic)GPT (OpenAI)Llama (Meta)Open-source options in your own environment
Agent frameworks
Claude Agent SDKOpenAI Agents SDKLangGraph
Static analysis and AST tooling
tree-sittersemgrepOpenRewrite (Java)ts-morph (TypeScript)Roslyn analyzers (.NET)
Evaluation and observability
LangfuseOpenTelemetry GenAI

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Other services

Application modernization
Backed by our App Modernization on Microsoft Azure specialization, we modernize legacy .NET and Java applications in stages, protecting working business processes with tests.
Database modernization and data migration
We modernize database schemas and business logic, and migrate relational, NoSQL and event-streaming data to target platforms while preserving data integrity.
Cloud architecture and migration
We design cloud and hybrid environments, led by Microsoft Azure (Landing Zone, AKS) alongside AWS, GCP and on-premises RKE2, around your data, security and cost needs.
AI agent development
We build agents connected to your systems to reduce repetitive support, document and data work. We define data access and human approval steps upfront.