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@sounder25/mcp-connector

A

Provides a Model Context Protocol (MCP) server interface to the skills library, allowing any MCP-compliant agent (e.g. Claude Desktop) to invoke Antigravity skills as native tools.

skillclaude

Install

agr install @sounder25/mcp-connector --target claude

Writes 3 files into .claude/skills/, pinned to git-3a1d3f5f.

  • .claude/skills/mcp-connector/README.md
  • .claude/skills/mcp-connector/SKILL.md
  • .claude/skills/mcp-connector/server.py

Document


name: MCP Connector description: Provides a Model Context Protocol (MCP) server interface to the skills library, allowing any MCP-compliant agent (e.g. Claude Desktop) to invoke Antigravity skills as native tools. version: 1.0.0 author: Antigravity Skills Library created: 2026-01-16 leverage_score: 5/5

SKILL-016: MCP Connector

Overview

This skill is a Meta-Skill. It wraps the entire library in an MCP Server. This enables external agents to "plug in" to Antigravity capabilities without knowing the underlying PowerShell scripts.

Trigger Phrases

  • start mcp server
  • connect skills to claude

Inputs

None (Service).

Outputs

  • Exposes Tools via stdio:
    • list_skills()
    • run_skill(id, args)
    • read_skill_spec(id)

Preconditions

  • Python 3.10+
  • mcp package installed

Implementation

See server.py.

Configuration

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "antigravity-skills": {
      "command": "python",
      "args": [
        "full/path/to/server.py"
      ]
    }
  }
}

Trustgrade A

  • passBody integrity

    Whether the stored document is plausibly the kind of file the artifact declares, rather than something fetched by mistake.

  • passType matchnot applicable to this artifact type

    Whether the artifact is really the kind of thing its metadata claims it is.

  • passFreshness

    How long since the source repository was last pushed to.

  • passPrompt injection

    Scans the artifact's own text for instructions aimed at your agent rather than at you.

  • passLicense

    Whether the source repository declares an SPDX license permissive enough to redistribute.

How the grade is calculated

Each check contributes 0 points when it passes, 1 when it warns, and 2 when it fails. The total maps to a letter:

  • Aevery check passed
  • Bone warning
  • Ctwo warnings
  • Dprompt injection or body integrity failed, or three warnings
  • Fone of those failed, and something else is wrong

These are automated hygiene checks, not a security audit, and not a dependency or vulnerability scan. A grade of A means nothing was flagged — not that the artifact is safe.

Versions

  • git-3a1d3f5f40112026-07-31