jitx-skills vs Arm MCP Server
jitx-skills is a plugin bundle for AI coding tools published by JITX Support. Marketplaces we read that list it: 1 (Community GitHub marketplaces). Arm MCP Server is an MCP server published by arm. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). As of our marketplace pass on 2026-10-24. 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 |  Arm MCP Server | |
|---|---|---|
| Community marketplace jitx-inc/jitx-skills | Listed Version: 1.7.0 Forks (GitHub): 2 Stars (GitHub): 20 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 2.4.0 Forks (GitHub): 22 Stars (GitHub): 94 Not marked · First seen |
| Docker MCP Catalog | Not listed | Listed Version: sha256:ea7c4d1daeb9 Forks (GitHub): 22 Stars (GitHub): 94 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 | jitx-skills | Arm MCP Server |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 20 (worse) | 94 (better) |
| Forks (GitHub) (differs) | 2 (worse) | 22 (better) |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | On your machine (docker.io/armlimited/arm-mcp:2.4.0) |
| Transport (differs) | Not stated | stdio |
| Tools it declares (differs) | Not published | 7 |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 9 | Not a bundle |
| Licence (differs) | Proprietary | Apache-2.0 |
| Repository (differs) | github.com/jitx-inc/jitx-skills | github.com/arm/mcp |
| Changes in the last 7 days (differs) | 2 | 0 |
| First seen (differs) | 2026-10-23 | 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
jitx-skills
JITX workflow skills for PCB design. Use jitx-component-modeler for component creation from datasheets. Use jitx-circuit-builder for wiring circuits, passives, and application circuits. Use jitx-substrate-modeler for capturing information about the fabrication substrate. Use jitx-physical-layout for authoring physical layout geometry from code — shapely custom shapes, copper and overlappable copper (antennas, filters, net-ties), pad features, code-placed vias and routes, and layout-intent tags. Use jitx-interconnect-constraints for signal integrity constraints, topology, differential pairs, and protocol-level constraint patterns. Use jitx-pin-assignment for pin assignment patterns including provide/require, pin muxing, DiffPair P/N swapping, PCIe lane ordering, DDR byte/bit swapping, and topology+constraint composition on pin-assigned ports. Use jitx-code-review for same-model self-critique of JITX Python code against the anti-string-hacking architectural rules — mandatory for complete-board tier at task acce
Arm MCP Server
Official Arm MCP server for code migration, optimization, and Arm architecture guidance
How to run each
jitx-skills As a Claude Code plugin
/plugin marketplace add jitx-inc/jitx-skills
/plugin install jitx-skills@jitxArm MCP Server As a local MCP server: Docker image
claude mcp add --transport stdio arm-mcp -- docker run -i --rm run --rm -i -v "<YOUR_WORKSPACE_PATH>:/workspace" -v "<YOUR_SSH_PRIVATE_KEY_PATH>:/run/keys/ssh-key.pem:ro" -v "<YOUR_SSH_KNOWN_HOSTS_PATH>:/run/keys/known_hosts:ro" docker.io/armlimited/arm-mcp:2.4.0Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of jitx-skills 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: jitx-skills · What it can do: Arm MCP Server · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.