cpp-language-server vs Rails Agent Skills
cpp-language-server is a plugin bundle for AI coding tools published by microsoft. Marketplaces we read that list it: 1 (Copilot CLI: github/copilot-plugins). Rails Agent Skills is an MCP server published by igmarin. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-16. 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 |  cpp-language-server |  Rails Agent Skills |
|---|---|---|
| Copilot CLI: github/copilot-plugins | Listed Version: 0.1.2 Forks (GitHub): 12 Stars (GitHub): 55 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 5.1.7 Forks (GitHub): 8 Stars (GitHub): 27 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 | cpp-language-server | Rails Agent Skills |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 55 (better) | 27 (worse) |
| Forks (GitHub) (differs) | 12 (better) | 8 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (docker.io/igmarin/rails-agent-skills-mcp:5.1.7) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 1 | Not a bundle |
| Licence (differs) | See EULA/LICENSE.txt in @microsoft/cpp-language-server NPM package | Not stated |
| Repository (differs) | github.com/microsoft/cpp-language-server | github.com/igmarin/rails-agent-skills |
| 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
cpp-language-server
Navigate and interact with your C++ code using the Microsoft C++ Language Server.
Rails Agent Skills
Rails development skills, docs, and workflows exposed through MCP stdio.
How to run each
cpp-language-server
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Rails Agent Skills As a local MCP server: Docker image
claude mcp add --transport stdio rails-agent-skills-mcp -- docker run -i --rm docker.io/igmarin/rails-agent-skills-mcp:5.1.7Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: cpp-language-server · What it can do: Rails Agent Skills · Compare two other plugins
Data comes from the public marketplace file https://github.com/github/copilot-plugins/blob/HEAD/.github/plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.