legacy-modernizer
Identify legacy patterns and suggest modern replacements
Plugin bundle · by barnburner121
About
legacy-modernizer is a plugin bundle for AI coding tools published by barnburner121. Marketplaces we read that list it: 1 (Community GitHub marketplaces). We first saw it on 2026-10-14 and have recorded no change since. As of our marketplace pass on 2026-10-15.
What it asks for
- Runs on your machine
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a Claude Code plugin
Built from what Community GitHub marketplaces declares.
/plugin marketplace add barnburner121/claude-plugin-marketplace
/plugin install legacy-modernizer@barnburner121-plugins
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Community marketplace barnburner121/claude-plugin-marketplace (Open the source on GitHub) | Listed | 1.0.0 | Forks (GitHub): 0 Stars (GitHub): 3 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
Listed in one community marketplace
| Marketplace | Repository | Stars (GitHub) |
|---|---|---|
| barnburner121-plugins | barnburner121/claude-plugin-marketplace | 3 |
What the bundle contains
As published on Community GitHub marketplaces.
MCP servers: 1
plugin-hub
Skills: 1
modernize
What changed
- Became a product we track
- Community GitHub marketplaces: appeared
Possibly the same plugin
Listings that share a signal with this one but not enough for us to treat them as the same product.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Generate codemods for code transformations
-
Refactor code following best practices and design patterns
-
Auto-upgrade JavaScript and TypeScript syntax to new ECMAScript features based on browser support.
-
Plugin description Code quality review plugin based on Frontend Fundamentals 4 principles (readability, predictability, cohesion, coupling). Supports React and Angular with…
-
Legacy modernization patterns and spec mining of legacy systems
-
Visualize and guide the GitHub Copilot Modernize CLI Assess, Plan, and Execute workflow for .NET, Java, and C++ application repositories.
-
Find duplicate code blocks and suggest DRY refactoring
-
Keep your coding agent up to date with the latest web best practices
-
AI-powered upgrade assistant for upgrading and migrating applications. Helps modernize legacy code and upgrade .NET applications to current frameworks.
-
Technical debt reduction, dependency updates, and code refactoring automation
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Plugin description Code quality review plugin based on Frontend Fundamentals 4 principles (readability, predictability, cohesion, coupling). Supports React and Angular with…
-
Enforce UI consistency across an entire codebase — detects drift in spacing, typography, colors, components, iconography, and interaction patterns across web, native mobile, and…
-
Interviews you about your coding preferences, analyzes your actual codebase, and generates personalized coding standards that Claude Code enforces automatically. Includes a…
-
Drop this plugin into any project and ask Claude to "review my architecture." It scans for clean architecture violations, SOLID breaches, code smells, and structural anti-patterns…
-
An AI skill that automatically and accurately configures linters from coding standards and enforces code quality.
Has a listing on Claude Code: claude-plugins-official (5)
-
Keep your coding agent up to date with the latest web best practices
-
Agent that simplifies and refines code for clarity, consistency, and maintainability while preserving functionality. Focuses on recently modified code.
-
Bring Qodo's codebase intelligence, coding standards, and code review into your coding agent.
-
Your code review partner. CodeRabbit provides external validation using a specialized AI architecture and 40+ integrated static analyzers—offering a different perspective that…
-
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Has a listing on Claude: knowledge-work-plugins (5)
-
Keep your coding agent up to date with the latest web best practices
-
Bring Qodo's codebase intelligence, coding standards, and code review into your coding agent.
-
Security review for Claude-generated code. Pattern-based warnings on edits, LLM-powered diff review on Stop, and an agentic commit reviewer that catches injection, XSS, SSRF…
-
Build and deploy Base44 full-stack apps with CLI project management and JavaScript/TypeScript SDK development skills
-
AI-first project auditor and re-engineer based on the 9 design principles and 7 design patterns from the TechWolf AI-First Bootcamp
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
AI-powered code review in Codex, powered by CodeRabbit.
-
Qodo setup, code intelligence, and review workflows.
-
Inspect repositories, triage pull requests and issues, debug CI, and publish changes through a hybrid GitHub connector and CLI workflow.
-
Use MagicPath to find, inspect, install, create, and edit UI components from Codex.
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
Has a listing on Community GitHub marketplaces (5)
-
Generate codemods for code transformations
-
Refactor code following best practices and design patterns
-
Auto-upgrade JavaScript and TypeScript syntax to new ECMAScript features based on browser support.
-
Legacy modernization patterns and spec mining of legacy systems
-
Find duplicate code blocks and suggest DRY refactoring
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Visualize and guide the GitHub Copilot Modernize CLI Assess, Plan, and Execute workflow for .NET, Java, and C++ application repositories.
-
Keep your coding agent up to date with the latest web best practices
-
AI-powered upgrade assistant for upgrading and migrating applications. Helps modernize legacy code and upgrade .NET applications to current frameworks.
-
Drive the GitHub Copilot App Modernization for Java workflow from an interactive canvas: environment readiness, repo assessment, prioritized plan and progress, validation gates…
-
Essential prompts, instructions, and chat modes for modern frontend web development including React, Angular, Vue, TypeScript, and CSS frameworks.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Advanced Security plugin for GitHub Copilot.
-
Bring Azure DevOps work-item, repository, and pull-request workflows into GitHub Copilot.
-
Navigate and interact with your C++ code using the Microsoft C++ Language Server.
-
code-apps-preview
Build and deploy Power Apps code apps using React, Vite, and Power Platform connectors.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
Has a listing on Cursor: cursor/plugins (5)
-
Skills for building on the Cursor Origin API. Fetch the live spec first, then follow the Origin rules for credentials, scopes, webhooks, paging, and errors. Includes a skill that…
-
CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.
-
Internal team workflows for CI, code review, shipping, local automation, and verification.
-
Build apps, scripts, and automations with the TypeScript SDK.
-
Render PR diffs as review canvases grouped by importance.
Has a listing on Docker MCP Catalog (5)
-
Educational Python refactoring assistant that provides guided suggestions for AI assistants.
-
next-devtools-mcp is a Model Context Protocol (MCP) server that provides Next.js development tools and utilities for AI coding assistants.
-
Stop stitching context for Copilot and Cursor. With Sequa MCP, your AI tools know your entire codebase and docs out of the box.
-
Tools and resources for writing Effect code in Typescript.
-
Tools for interacting with Git repositories.
Has a listing on Official MCP Registry (5)
-
Automated codebase refactoring and type safety validator.
-
Format/lint JS, Python, HubL for automation platforms. Tools: format_code, format_json, ask_codefmt
-
Automated code modernizer converting legacy logic to ESNext.
-
codeweb io.github.GhostlyGawd/codeweb
See what your AI edits affect. Structural checks for AI code changes. 28 MCP tools, no LLM.
-
Detect API breaking changes, scan your codebase for impact, and draft the fix. Runs locally.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.