ToolUniverse is a collection of tools, interfaces, and supporting components for building AI systems that perform scientific work. It is for developers creating AI scientist agents that use APIs, databases, machine-learning tools, and domain-specific utilities. The catalogue includes skills, commands, an MCP server, an agent, and a hook for working with the ecosystem.
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.
npx skills add mims-harvard/ToolUniverse --skill tooluniverse-install-skillsgit clone --depth 1 https://github.com/mims-harvard/ToolUniverseWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/mims-harvard/tooluniverse/tooluniverse-install-skills)<a href="https://agentmods.dev/skills/mims-harvard/tooluniverse/tooluniverse-install-skills"><img src="https://agentmods.dev/badge/skills/mims-harvard/tooluniverse/tooluniverse-install-skills/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mims-harvard/tooluniverse/tooluniverse-install-skills"><img src="https://agentmods.dev/badge/skills/mims-harvard/tooluniverse/tooluniverse-install-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00065 | $0.00908 |
| Opus 5.5 | $0.00026 | $0.00363 |
| Sonnet 5.5 | $0.00013 | $0.00182 |
| Haiku 4.5 | $0.00006 | $0.00091 |
Grade D, and why
tooluniverse-install-skills scanned grade D with 2 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 1mo 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.
Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
|| ls .gemini/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \ Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf /tmp/tu-skills How it starts
The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ToolUniverse Install Skills
Checks whether the ToolUniverse specialized skills are installed and installs them automatically if not.
Detection
Use the Shell tool to check for the canary file across all common client locations:
ls .cursor/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| ls .agents/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| ls .windsurf/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| ls .gemini/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| ls .claude/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| ls .opencode/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| ls .trae/skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| ls .skills/tooluniverse-drug-research/SKILL.md 2>/dev/null \
|| echo "NOT_INSTALLED"
- Output is a file path → skills already installed, stop here.
- Output is
NOT_INSTALLED→ proceed to installation.
Installation
# 1. Download skills from GitHub (shallow, sparse — only skills/ folder)
git clone --depth 1 --filter=blob:none --sparse \
https://github.com/mims-harvard/ToolUniverse.git /tmp/tu-skills
cd /tmp/tu-skills && git sparse-checkout set skills
# 2. Copy to the correct directory for the detected client:
mkdir -p .cursor/skills && cp -r /tmp/tu-skills/skills/* .cursor/skills/ # Cursor
# mkdir -p .agents/skills && cp -r /tmp/tu-skills/skills/* .agents/skills/ # Codex/OpenAI
# mkdir -p .windsurf/skills && cp -r /tmp/tu-skills/skills/* .windsurf/skills/ # Windsurf
# mkdir -p .gemini/skills && cp -r /tmp/tu-skills/skills/* .gemini/skills/ # Gemini CLI
# mkdir -p .claude/skills && cp -r /tmp/tu-skills/skills/* .claude/skills/ # Claude Code
# mkdir -p .opencode/skills && cp -r /tmp/tu-skills/skills/* .opencode/skills/ # OpenCode
# mkdir -p .trae/skills && cp -r /tmp/tu-skills/skills/* .trae/skills/ # Trae
# mkdir -p .skills && cp -r /tmp/tu-skills/skills/* .skills/ # Cline/VS Code
# 3. Clean up
rm -rf /tmp/tu-skills
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.
- 1mo ago First seen · 77 lines · 65 tokens per session scan D edc222962680
tooluniverse-install-skills is a skill published in the GitHub repository mims-harvard/ToolUniverse (1,744 stars, last pushed yesterday), licensed Apache-2.0. It adds 65 tokens to every session and 908 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it D with 2 findings (enumerates other installed skills, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
ai-agent-tool-routing
Use when designing or reviewing an AI agent tool registry or MCP router: document parameter schemas, caller authorization, execution limits, replay-safe retries and verification evidence.
rowboat-spaces
How to work as a member of Rowboat Spaces, the team chat where people and agents work together. Load it once per session, before acting on any request that reaches you from Rowboat; it covers your setup, mentions and hand-offs, the tools, and files.
computer-use
Read and drive native desktop apps through the accessibility layer — list apps, snapshot a window as a numbered element tree, then click/type/scroll/drag by element index or screen coordinates. Use for a desktop app, not a web page. macOS + Windows; off unless enabled in Settings.
meetings
Context for the Meetings app's data — where a meeting's notes, diagram, transcript-derived tasks and calendar cache live, what the lifecycle states mean, how the app's agents are driven. Load when asked about a meeting's notes or action items, or when touching the meetings app data dir.
apple-reminders
Manage Apple Reminders via the remindctl CLI on macOS — list, add, complete, delete, manage lists.
crisis-holding
Draft crisis holding statements, journalist Q&A posture, and what-not-to-say guidance from confirmed incident facts, with a hard legal-counsel gate. Builds each statement through proven crisis-comms frameworks (holding-statement anatomy, SCCT, CAP order, the legitimate non-answer, bridge/flag/block).