Arc Skills runs on your own machine — the client starts it, so there is no endpoint to ping. 242 installs a week from pypi. Last commit 3 Oct 2026.
100 systems and hardware engineering skills for requirements, interfaces, budgets and verification.
What the code does
We read the source, 5 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
этот файл ставится пользователю, но в репозитории его нет
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add arc-skills -e 'ARC_ENGINEERING_WORKSPACE=<ARC_ENGINEERING_WORKSPACE>' -- uvx arc-engineering-mcp{
"mcpServers": {
"arc-skills": {
"command": "uvx",
"args": [
"arc-engineering-mcp"
],
"env": {
"ARC_ENGINEERING_WORKSPACE": "<ARC_ENGINEERING_WORKSPACE>"
}
}
}
}[mcp_servers.arc-skills]
command = "uvx"
args = ["arc-engineering-mcp"]
env = { ARC_ENGINEERING_WORKSPACE = "<ARC_ENGINEERING_WORKSPACE>" }{
"mcpServers": {
"arc-skills": {
"command": "uvx",
"args": [
"arc-engineering-mcp"
],
"env": {
"ARC_ENGINEERING_WORKSPACE": "<ARC_ENGINEERING_WORKSPACE>"
}
}
}
}{
"servers": {
"arc-skills": {
"type": "stdio",
"command": "uvx",
"args": [
"arc-engineering-mcp"
],
"env": {
"ARC_ENGINEERING_WORKSPACE": "<ARC_ENGINEERING_WORKSPACE>"
}
}
}
}Put your own value in place of
<ARC_ENGINEERING_WORKSPACE> (Absolute path to an existing dedicated folder for inputs and new outputs; do not use your home directory).
The author’s registry entry marks it as required.
Alternatives to Arc Skills
same job, measured the same way100 systems and hardware engineering skills for requirements, interfaces, budgets and verification.
stories.yaml — an open specification for software requirements, enforced by CI.
stories.yaml — an open specification for software requirements, enforced by CI.
Read-only machine-vision calculations for optics, interfaces, line scan, sensors, and models.
Context Assurance for AI agents: context engineering, AI cost optimization, verification.
Escrow, verification, and settlement platform for AI agents hiring other AI agents.
Verified lifecycle for building software with an agent: units, human gates, requirements.
Visa & entry requirements for 199 passports, cited to official sources and re-verified daily.
Arc Skills — questions
Answers built from our own checks of this server.