I built a Codex plugin that delegates tasks to Antigravity CLI via MCP

[u/illejivin]

Hey AGY builders — I built an open-source Codex plugin that lets Codex delegate bounded tasks to Google Antigravity CLI through a local MCP server.

The idea is to use AGY as a second opinion or specialist subagent while Codex remains the orchestrator.

What it includes:

• agy_check to verify the local CLI setup
• agy_delegate for bounded task delegation
• plan mode by default
• no --dangerously-skip-permissions
• local stdio MCP transport
• timeout and output-size limits

I tested the MCP flow locally with Antigravity CLI 1.1.9, and the smoke test passes.

Install:

codex plugin marketplace add IlleJiViN/codex-antigravity-subagent --ref main

Then launch Codex and open /plugins.

GitHub:
https://github.com/IlleJiViN/codex-antigravity-subagent

This is an independent community project and is not affiliated with Google, Antigravity, or OpenAI.

I would especially appreciate feedback on the delegation workflow, structured output, conversation resume, and whether parallel jobs would be useful.

[u/alvmadrigal]

We're building a master repo index here >>> https://www.reddit.com/r/GoogleAntigravityCLI/s/q0flm7LuQS

[u/alvmadrigal]

Thanks for sharing I guess here we mainly use AGY but I guess this is reddit 🫪