Connect

8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "arc-free-skills": {
      "command": "uvx",
      "args": [
        "--no-config",
        "--from",
        "arc-free-skills==1.0.0",
        "arc-free-skills==1.0.0",
        "arc-free-skills",
        "serve"
      ],
      "env": {
        "ARC_FREE_SKILLS_WORKSPACE": "${ARC_FREE_SKILLS_WORKSPACE}"
      }
    }
  }
}

claude mcp add arc-free-skills -e "ARC_FREE_SKILLS_WORKSPACE=${ARC_FREE_SKILLS_WORKSPACE}" -- uvx --no-config --from arc-free-skills==1.0.0 arc-free-skills==1.0.0 arc-free-skills serve

[mcp_servers.arc-free-skills]
command = "uvx"
args = ["--no-config", "--from", "arc-free-skills==1.0.0", "arc-free-skills==1.0.0", "arc-free-skills", "serve"]
env = { "ARC_FREE_SKILLS_WORKSPACE" = "${ARC_FREE_SKILLS_WORKSPACE}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "arc-free-skills": {
      "type": "local",
      "command": [
        "uvx",
        "--no-config",
        "--from",
        "arc-free-skills==1.0.0",
        "arc-free-skills==1.0.0",
        "arc-free-skills",
        "serve"
      ],
      "enabled": true,
      "environment": {
        "ARC_FREE_SKILLS_WORKSPACE": "{env:ARC_FREE_SKILLS_WORKSPACE}"
      }
    }
  }
}

{
  "mcpServers": {
    "arc-free-skills": {
      "command": "uvx",
      "args": [
        "--no-config",
        "--from",
        "arc-free-skills==1.0.0",
        "arc-free-skills==1.0.0",
        "arc-free-skills",
        "serve"
      ],
      "env": {
        "ARC_FREE_SKILLS_WORKSPACE": "${ARC_FREE_SKILLS_WORKSPACE}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=arc-free-skills&config=eyJjb21tYW5kIjoidXZ4IiwiYXJncyI6WyItLW5vLWNvbmZpZyIsIi0tZnJvbSIsImFyYy1mcmVlLXNraWxscz09MS4wLjAiLCJhcmMtZnJlZS1za2lsbHM9PTEuMC4wIiwiYXJjLWZyZWUtc2tpbGxzIiwic2VydmUiXSwiZW52Ijp7IkFSQ19GUkVFX1NLSUxMU19XT1JLU1BBQ0UiOiIke0FSQ19GUkVFX1NLSUxMU19XT1JLU1BBQ0V9In19"
}

{
  "servers": {
    "arc-free-skills": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "--no-config",
        "--from",
        "arc-free-skills==1.0.0",
        "arc-free-skills==1.0.0",
        "arc-free-skills",
        "serve"
      ],
      "env": {
        "ARC_FREE_SKILLS_WORKSPACE": "${ARC_FREE_SKILLS_WORKSPACE}"
      }
    }
  }
}

{
  "mcpServers": {
    "arc-free-skills": {
      "command": "uvx",
      "args": [
        "--no-config",
        "--from",
        "arc-free-skills==1.0.0",
        "arc-free-skills==1.0.0",
        "arc-free-skills",
        "serve"
      ],
      "env": {
        "ARC_FREE_SKILLS_WORKSPACE": "${ARC_FREE_SKILLS_WORKSPACE}"
      }
    }
  }
}

extensions:
  "arc-free-skills":
    enabled: true
    name: "arc-free-skills"
    type: stdio
    cmd: "uvx"
    args:
      - "--no-config"
      - "--from"
      - "arc-free-skills==1.0.0"
      - "arc-free-skills==1.0.0"
      - "arc-free-skills"
      - "serve"
    envs:
      "ARC_FREE_SKILLS_WORKSPACE": "${ARC_FREE_SKILLS_WORKSPACE}"
    timeout: 300

This is a local package: the command runs on your machine.

Quality – / 100new

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvabledeps.dev does not know [email protected]

Tool list unknown · checked 2026-10-20 18:06 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance90

livenessn/a

freshness100

hygiene100

+repository +namespace-matches-repo +website ~liveness-unmeasured +updated-3d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

[email protected] PyPIthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`arc-free-skills`	pypi	1.0.0	uvx

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Also listed as

1 other active names share this repository: io.github.JoshElgar/arc-skills

Similar MCP servers

Official server.json

{
  "name": "io.github.ArcHelps/arc-free-skills",
  "title": "Arc Free Skills",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "1.0.0",
  "packages": [
    {
      "version": "1.0.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "arc-free-skills",
      "runtimeHint": "uvx",
      "registryType": "pypi",
      "registryBaseUrl": "https://pypi.org",
      "packageArguments": [
        {
          "type": "positional",
          "value": "arc-free-skills"
        },
        {
          "type": "positional",
          "value": "serve"
        }
      ],
      "runtimeArguments": [
        {
          "type": "positional",
          "value": "--no-config"
        },
        {
          "name": "--from",
          "type": "named",
          "value": "arc-free-skills==1.0.0"
        }
      ],
      "environmentVariables": [
        {
          "name": "ARC_FREE_SKILLS_WORKSPACE",
          "format": "filepath",
          "isRequired": true,
          "description": "Absolute path to an existing dedicated folder for inputs and new outputs; do not use your home directory."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/ArcHelps/systems-engineering-skills",
    "source": "github"
  },
  "websiteUrl": "https://www.archelps.com/",
  "description": "100 systems and hardware engineering skills for requirements, interfaces, budgets and verification."
}