How do I install the Tooluniverse Antigravity Plugin skill?

Run npx skillmds@latest add mims-harvard/tooluniverse-antigravity-plugin in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Tooluniverse Antigravity Plugin safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Tooluniverse Antigravity Plugin?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Tooluniverse Antigravity Plugin free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Tooluniverse Antigravity Plugin?

mims-harvard (@mims-harvard) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Tooluniverse Antigravity Plugin by mims-harvard

Name: Tooluniverse Antigravity Plugin
Rating: 4.5 (4 reviews)
Author: mims-harvard

Tooluniverse Antigravity Plugin

Install, set up, verify, update, pin, uninstall, or troubleshoot the ToolUniverse plugin on Google Antigravity (AGY / Antigravity IDE / Antigravity 2.0). ALWAYS consult this skill for any of those — don't answer from memory, because the exact CLI name (agy), the "agy plugin install <path>" flow, the uvx tooluniverse MCP server, and the API-key env vars are easy to get wrong. Use it whenever someone wants to get ToolUniverse (or "the 1000+ scientific tools" / "the harvard tools") working on Antigravity, says the Antigravity plugin or its tools/skills won't load, hits a uvx or MCP-server startup error, asks how Antigravity updates it, wants to pin or remove it, or finds it running an old tool version. Not for the Codex plugin (use tooluniverse-codex-plugin) or Claude Code plugin (use tooluniverse-claude-code-plugin), for running research with the tools, or for authoring new tools or skills.

mims-harvard Updated Sep 9, 2026

File contents

Install the ToolUniverse Plugin for Google Antigravity (AGY)

One-step install on Google Antigravity (AGY / Antigravity IDE / Antigravity 2.0): an MCP server exposing 1000+ scientific tools plus 120+ research skills — all auto-configured.

Prerequisites (check once)

uv --version   # provides `uvx`; if missing: curl -LsSf https://astral.sh/uv/install.sh | sh
agy --version  # Antigravity CLI; if missing: https://antigravity.google

Install

In Antigravity, plugins can be installed using the agy CLI:

Option 1: Direct path / imported plugin install (recommended)

# If installed via Claude Code / Codex marketplace cache or cloned repo:
agy plugin install /path/to/ToolUniverse/plugin

Option 2: Clone + install

git clone https://github.com/mims-harvard/ToolUniverse.git
cd ToolUniverse
agy plugin install ./plugin

Restart Antigravity. The MCP server auto-starts via uvx tooluniverse on first use (~30 s cold start while the package downloads, instant after).

Verify it worked

agy plugin list

Expect output showing tooluniverse under imports:

{
  "imports": [
    {
      "name": "tooluniverse",
      "source": "claude-code",
      "components": [
        "skills",
        "agents",
        "mcpServers",
        "hooks",
        "commands"
      ]
    }
  ]
}

Inside Antigravity, just ask naturally:

What are the top mutated genes in breast cancer?
Research the drug metformin.

The research skills auto-activate on matching questions, and the MCP tools are discovered and run via find_tools → execute_tool — no command prefix needed.

What you get

Component	What it does	How it's used
MCP server	1000+ tools via `find_tools`, `get_tool_info`, `execute_tool`	Auto-loaded; no action needed
120+ skills	Structured research workflows (drug discovery, variant interpretation, pharmacovigilance, phylogenetics, statistical modeling, etc.)	Auto-activate on matching questions
Research agent	Autonomous multi-database research subagent	Auto-routed on complex research tasks

API keys (optional, but recommended)

Most tools work without keys. For higher rate limits or gated databases, set the keys you care about in ~/.gemini/config/plugins/tooluniverse/mcp_config.json or pass them in environment variables:

export NCBI_API_KEY="your_key"
export
export SEMANTIC_SCHOLAR_API_KEY="your_key"

Update

uv cache clean tooluniverse

Restart Antigravity.

Troubleshooting

Symptom	Fix
`uvx: command not found`	Install `uv` (see Prerequisites), reopen terminal.
MCP server won't start	Run `uv cache clean tooluniverse` or `uvx --refresh tooluniverse --help` in terminal.
Plugin installs but tools missing	Restart Antigravity CLI/IDE. First launch downloads the package (~30 s).
`requires-python >= 3.10`	`uv python install 3.12`

Still stuck: https://github.com/mims-harvard/ToolUniverse/issues

---name: tooluniverse-antigravity-plugindescription: Install, set up, verify, update, pin, uninstall, or troubleshoot the ToolUniverse plugin on Google Antigravity (AGY / Antigravity IDE / Antigravity 2.0). ALWAYS consult this skill for any of those — don't answer from memory, because the exact CLI name (agy), the "agy plugin install <path>" flow, the uvx tooluniverse MCP server, and the API-key env vars are easy to get wrong. Use it whenever someone wants to get ToolUniverse (or "the 1000+ scientific tools" / "the harvard tools") working on Antigravity, says the Antigravity plugin or its tools/skills won't load, hits a uvx or MCP-server startup error, asks how Antigravity updates it, wants to pin or remove it, or finds it running an old tool version. Not for the Codex plugin (use tooluniverse-codex-plugin) or Claude Code plugin (use tooluniverse-claude-code-plugin), for running research with the tools, or for authoring new tools or skills.--- # Install the ToolUniverse Plugin for Google Antigravity (AGY) One-step install on Google Antigravity (AGY / Antigravity IDE / Antigravity 2.0): an MCP server exposing 1000+ scientific tools plus 120+ research skills — all auto-configured. ## Prerequisites (check once) ```bash uv --version # provides `uvx`; if missing: curl -LsSf https://astral.sh/uv/install.sh | sh agy --version # Antigravity CLI; if missing: https://antigravity.google ``` ## Install In Antigravity, plugins can be installed using the `agy` CLI: ### Option 1: Direct path / imported plugin install (recommended) ```bash # If installed via Claude Code / Codex marketplace cache or cloned repo: agy plugin install /path/to/ToolUniverse/plugin ``` ### Option 2: Clone + install ```bash git clone https://github.com/mims-harvard/ToolUniverse.git cd ToolUniverse agy plugin install ./plugin ``` Restart Antigravity. The MCP server auto-starts via `uvx tooluniverse` on first use (~30 s cold start while the package downloads, instant after). ## Verify it worked ```bash agy plugin list ``` Expect output showing `tooluniverse` under `imports`: ```json { "imports": [ { "name": "tooluniverse", "source": "claude-code", "components": [ "skills", "agents", "mcpServers", "hooks", "commands" ] } ] } ``` Inside Antigravity, just ask naturally: ``` What are the top mutated genes in breast cancer? Research the drug metformin. ``` The research skills auto-activate on matching questions, and the MCP tools are discovered and run via `find_tools` → `execute_tool` — no command prefix needed. ## What you get | Component | What it does | How it's used | |---|---|---| | **MCP server** | 1000+ tools via `find_tools`, `get_tool_info`, `execute_tool` | Auto-loaded; no action needed | | **120+ skills** | Structured research workflows (drug discovery, variant interpretation, pharmacovigilance, phylogenetics, statistical modeling, etc.) | Auto-activate on matching questions | | **Research agent** | Autonomous multi-database research subagent | Auto-routed on complex research tasks | ## API keys (optional, but recommended) Most tools work without keys. For higher rate limits or gated databases, set the keys you care about in `~/.gemini/config/plugins/tooluniverse/mcp_config.json` or pass them in environment variables: ```bash export NCBI_API_KEY="your_key" export ONCOKB_API_TOKEN="your_token" export SEMANTIC_SCHOLAR_API_KEY="your_key" ``` ## Update ```bash uv cache clean tooluniverse ``` Restart Antigravity. ## Troubleshooting | Symptom | Fix | |---|---| | `uvx: command not found` | Install `uv` (see Prerequisites), reopen terminal. | | MCP server won't start | Run `uv cache clean tooluniverse` or `uvx --refresh tooluniverse --help` in terminal. | | Plugin installs but tools missing | Restart Antigravity CLI/IDE. First launch downloads the package (~30 s). | | `requires-python >= 3.10` | `uv python install 3.12` | Still stuck: https://github.com/mims-harvard/ToolUniverse/issues

Frequently asked questions