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code-modernization

Modernize legacy codebases (COBOL, legacy Java/C++/.NET, monolith web apps) with a structured preflight / assess / map / extract-rules / brief / (reimagine | transform | uplift) / harden / status workflow. Cross-stack rewrites, greenfield reimagining, and same-stack version uplifts (e.g. .NET Framework → .NET 8); an interactive topology viewer; specialist agents; and optional dynamic-workflow orchestration with adversarial verification.

Claude Code

By Anthropic36.7k GitHub starsUpdated 5 hours ago

Directory evidence

Runtimes
Claude Code
Parsed components
0 skill or MCP entries
Source updated
Sep 24, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install code-modernization for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install code-modernization@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/anthropics/claude-plugins-official

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/code-modernization/.

Plugin files

plugins/code-modernization/
└── .claude-plugin/plugin.json

Plugin manifests1

plugins/code-modernization/.claude-plugin/plugin.json
{
  "name": "code-modernization",
  "description": "Modernize legacy codebases (COBOL, legacy Java/C++/.NET, monolith web apps) with a structured preflight / assess / map / extract-rules / brief / (reimagine | transform | uplift) / harden / status workflow. Cross-stack rewrites, greenfield reimagining, and same-stack version uplifts (e.g. .NET Framework → .NET 8); an interactive topology viewer; specialist agents; and optional dynamic-workflow orchestration with adversarial verification.",
  "author": {
    "name": "Anthropic",
    "email": "[email protected]"
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[code-modernization on Agent Plugins Marketplace](https://pluginsmp.com/plugins/code-modernization)