Tooluniverse antigravity plugin
Skill mims-harvard/ToolUniverse/skills/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.From its SKILL.md
npx -y skills add mims-harvard/ToolUniverse --skill tooluniverse-antigravity-pluginAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
SKILL.md
4.0 KB, as published. Nobody here has run it
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 ONCOKB_API_TOKEN="your_token"
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