100 systems and hardware engineering skills for requirements, interfaces, budgets and verification.
Connect Runs on your machine
claude mcp add arc-free-skills -e ARC_FREE_SKILLS_WORKSPACE=<ARC_FREE_SKILLS_WORKSPACE> -- uvx arc-free-skills==1.0.0
{
"mcpServers": {
"arc-free-skills": {
"command": "uvx",
"args": [
"arc-free-skills==1.0.0"
],
"env": {
"ARC_FREE_SKILLS_WORKSPACE": "<ARC_FREE_SKILLS_WORKSPACE>"
}
}
}
}
{
"mcpServers": {
"arc-free-skills": {
"command": "uvx",
"args": [
"arc-free-skills==1.0.0"
],
"env": {
"ARC_FREE_SKILLS_WORKSPACE": "<ARC_FREE_SKILLS_WORKSPACE>"
}
}
}
}
{
"servers": {
"arc-free-skills": {
"type": "stdio",
"command": "uvx",
"args": [
"arc-free-skills==1.0.0"
],
"env": {
"ARC_FREE_SKILLS_WORKSPACE": "<ARC_FREE_SKILLS_WORKSPACE>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
ARC_FREE_SKILLS_WORKSPACERequired | Absolute path to an existing dedicated folder for inputs and new outputs; do not use your home directory. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 17 Oct 2026 |
| Last updated | 17 Oct 2026 |
| Registry name | io.github.ArcHelps/arc-free-skills |
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