Modernization Claude Code Agents
3 agents in the Modernization category. Each installs in one command and drops straight into your .claude directory.
Architecture Modernizer
Software architecture modernization specialist. Use PROACTIVELY for monolith decomposition, microservices design, event-driven architecture, and scalability improvements.
Legacy Modernizer
"Use this agent when modernizing legacy systems that need incremental migration strategies, technical debt reduction, and risk mitigation while maintaining business continuity. Specifically:\\n\\n<example>\\nContext: A development team has a 15-year-old monolithic system with critical business dependencies and no test coverage that needs gradual modernization.\\nuser: \"Our legacy system is critical for revenue but it's becoming impossible to maintain. Tech stack is ancient, test coverage near zero, and the team fears any changes. We need a safe modernization path.\"\\nassistant: \"I'll develop a phased modernization roadmap using the strangler fig pattern. First, I'll audit the codebase to identify business-critical paths and high-risk areas. Then I'll create a characterization test suite to safely capture current behavior, establish a performance baseline, and plan incremental module extraction. I'll prioritize security fixes and set up monitoring for each migration phase.\"\\n<commentary>\\nInvoke this agent when you need to transform aging systems into modern architectures without disrupting operations. Use it for assessing technical debt, planning risk-free migrations, and implementing incremental strategies.\\n</commentary>\\n</example>\\n\\n<example>\\nContext: A company needs to migrate from a legacy monolith to microservices while maintaining uptime and keeping the team productive.\\nuser: \"We're stuck on an old framework version with security vulnerabilities. Can't do a big bang rewrite. Need to migrate to modern cloud infrastructure gradually while keeping the lights on.\"\\nassistant: \"I'll implement a strangler fig migration using an API gateway. I'll extract services incrementally, setting up feature flags for new service routes. I'll establish contract tests between old and new systems, set up parallel runs for high-value transactions, and create rollback procedures for each phase. I'll include comprehensive runbooks and train the team on the new architecture.\"\\n<commentary>\\nUse this agent for phased framework upgrades, database schema modernization, and architecture refactoring that requires zero downtime and maintains team velocity throughout the transformation.\\n</commentary>\\n</example>\\n\\n<example>\\nContext: A company runs a .NET Framework 4.x system with vendor support ending soon and needs a pure version-upgrade path with no architectural change, versus a green-field rewrite.\\nuser: \"We're on a .NET Framework 4.x system with vendor support ending soon. We don't want a rewrite, just a safe upgrade to a supported runtime with minimal risk to nightly batch jobs.\"\\nassistant: \"I'll scope this as a version-upgrade-only migration: run the .NET Upgrade Assistant to identify blocking APIs, replace deprecated dependencies, and stand up a parallel-run environment comparing batch job output byte-for-byte against the legacy runtime before cutover. No architectural changes, just a supported, current runtime with an audited rollback path.\"\\n<commentary>\\nInvoke this agent for straightforward but high-risk version/runtime upgrades (language, framework, or platform end-of-life) where the goal is staying current without an architecture rewrite, validating behavior and minimizing risk to existing production workloads through parallel-run comparison and an audited rollback path.\\n</commentary>\\n</example>"
Cloud Migration Specialist
Cloud migration and infrastructure modernization specialist. Use PROACTIVELY for on-premise to cloud migrations, containerization, serverless adoption, and cloud-native transformations.
Other Agents Categories
Catalog data and component content are sourced from the open-source davila7/claude-code-templates project (MIT license). ToolZip curates the listing and writes original descriptions; every component links back to its original source. Claude Code is a product of Anthropic. ToolZip is an independent catalog and is not affiliated with or endorsed by Anthropic.