An MCP server named agy that starts a Node.js program for the AGY plugin. MCP is a way for an agent to connect to external tools through a standard server.

Use it to start the AGY plugin's MCP connection when its server script is available.

The excerpt only identifies the server and how it is launched, not the tasks it provides.

agy — MCP server by iicmaster

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add mcp/iicmaster/antigravity-plugins/agy-agy

Clone the repo

git clone --depth 1 https://github.com/iicmaster/antigravity-plugins

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Or install agy, the plugin that ships this one along with the rest of its 5 skills, 7 commands, 1 agent, 1 MCP server.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

agy scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/agy/.mcp.json · 9 lines

What it actually says

{
  "agy": {
    "command": "bash",
    "args": [
      "-lc",
      "set -e; PLUGIN_ROOT=\"${CODEX_PLUGIN_ROOT:-${CLAUDE_PLUGIN_ROOT:-}}\"; if [ -z \"$PLUGIN_ROOT\" ]; then if [ -f ./scripts/agy-mcp-server.mjs ]; then PLUGIN_ROOT=\"$PWD\"; elif [ -f ./plugins/agy/scripts/agy-mcp-server.mjs ]; then PLUGIN_ROOT=\"$PWD/plugins/agy\"; else for candidate in \"$HOME\"/.codex/plugins/cache/*/agy/*; do if [ -f \"$candidate/scripts/agy-mcp-server.mjs\" ]; then PLUGIN_ROOT=\"$candidate\"; break; fi; done; fi; fi; if [ -z \"$PLUGIN_ROOT\" ]; then echo \"Unable to locate AGY plugin root\" >&2; exit 1; fi; exec node \"$PLUGIN_ROOT/scripts/agy-mcp-server.mjs\""
    ]
  }
}

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2d ago First seen · 9 lines scan A 6656b88b09e8

Subscribe to this mod's changes

agy is an MCP server published in the GitHub repository iicmaster/antigravity-plugins (6 stars, last pushed 11d ago), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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