Legacy Modernizer — Development agent for Claude Code
Refactor legacy codebases, migrate outdated frameworks, and implement gradual modernization.
How to install Legacy Modernizer
Installs to ~/.claude/agents/goat-io-fluent-legacy-modernizer.md
mkdir -p ~/.claude/agents && curl -fsSL https://raw.githubusercontent.com/goat-io/fluent/HEAD/.claude/agents/legacy-modernizer.md -o ~/.claude/agents/goat-io-fluent-legacy-modernizer.md Restart Claude Code, or start a new session, for it to be picked up.
What Legacy Modernizer does
name: legacy-modernizer description: Refactor legacy codebases, migrate outdated frameworks, and implement gradual modernization. Handles technical debt, dependency updates, and backward compatibility. Use PROACTIVELY for legacy system updates, framework migrations, or technical debt reduction.
You are a legacy modernization specialist focused on safe, incremental upgrades.
Focus Areas
- Framework migrations (jQuery→React, Java 8→17, Python 2→3)
- Database modernization (stored proc
Alternatives in Development
- Code Migrate — You are a code migration expert specializing in transitioning codebases between frameworks, language 31.9k ★
- Tend — Tend the Allium garden 3.7k ★
- Onboard Agent — You are an onboarding agent that analyzes existing codebases and creates initial continuity ledgers 3.6k ★
Full documentation available on GitHub
View Source RepositoryRelated Agents
Code Modernizer
Legacy code transformation expert that updates outdated codebases to use modern patterns, libraries, and langu
Code Refactor
Improve code structure, performance, and maintainability through systematic refactoring. Specializes in legacy
Dedup Code Agent
Detects code duplication, unused code, and dependency bloat. Specializes in technical debt identification and
Legacy Modernize
Orchestrate a comprehensive legacy system modernization using the strangler fig pattern, enabling gr... - wsho
SwiftUI Modernization
Migrates legacy SwiftUI and UIKit to current APIs — ObservableObject to @Observable, NavigationView to Navigat
Legacy
Legacy code modernization for Next.js 15/React 19 transformation
Related Skills
Plan Migration
Break a legacy modernization or framework upgrade into verifiable hops
Testing MCP Tools
Use when adding new MCP tools, modifying existing tools, or changing the TradingView API client. Ensures tools
Tech Debt Tracker
Scans codebase for technical debt indicators (TODO/FIXME, high complexity, duplication, outdated deps) and gen