Node.js Sandbox vs upgrade-agent
Node.js Sandbox is an MCP server published by alfonsograziano. Marketplaces we read that list it: 1 (Docker MCP Catalog). upgrade-agent is a plugin bundle for AI coding tools published by microsoft. Marketplaces we read that list it: 1 (Copilot CLI: github/awesome-copilot). As of our marketplace pass on 2026-10-12. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace | ||
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:e8cbb5c3ae86 Forks (GitHub): 34 Pulls (Docker Hub): 156 632 Stars (Docker Hub): 6 Stars (GitHub): 158 Not marked · First seen |
Not listed |
| Copilot CLI: github/awesome-copilot | Not listed | Listed Version: 1.1.652 Forks (GitHub): 9 Stars (GitHub): 41 Not marked · First seen |
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.
The facts side by side
| Fact | Node.js Sandbox | upgrade-agent |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 158 (better) | 41 (worse) |
| Pulls (Docker Hub) (differs) | 156 632 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 34 (better) | 9 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (mcp/node-code-sandbox) | Installs as a plugin bundle |
| Transport (differs) | stdio | Not stated |
| Tools it declares (differs) | 7 | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/alfonsograziano/node-code-sandbox-mcp | github.com/microsoft/upgrade-agent-plugins |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
Node.js Sandbox
A Node.js–based Model Context Protocol server that spins up disposable Docker containers to execute arbitrary JavaScript.
upgrade-agent
AI-powered upgrade assistant for upgrading and migrating applications. Helps modernize legacy code and upgrade .NET applications to current frameworks.
How to run each
Node.js Sandbox As a local MCP server: Docker image
claude mcp add --transport stdio node-code-sandbox -- docker run -i --rm mcp/node-code-sandboxupgrade-agent
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of upgrade-agent publish no list of tools, so we do not compare tools.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: Node.js Sandbox · What it can do: upgrade-agent · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from the public marketplace file https://github.com/github/awesome-copilot/blob/HEAD/.github/plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.