How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does create-tooluniverse-skill support?

create-tooluniverse-skill works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is create-tooluniverse-skill free to use?

Yes. create-tooluniverse-skill is free to install and use. It is available from the open explainx.ai skill registry published by mims-harvard.

Where can I read ratings and reviews for create-tooluniverse-skill?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install create-tooluniverse-skill?

Run `npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill` in your terminal. You need to have run `npx skills init` once in your project first.

Productivity

create-tooluniverse-skill▌

mims-harvard/tooluniverse · updated Apr 8, 2026

MDX-style export adds YAML metadata + attribution linking explainx.ai and this canonical listing URL.

$npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill

0 commentsdiscussion

summary

Systematic workflow for creating production-ready ToolUniverse skills.

skill.md

Create ToolUniverse Skill

Systematic workflow for creating production-ready ToolUniverse skills.

Core Principles

Build on the 10 pillars from devtu-optimize-skills:

TEST FIRST - never document untested tools
Verify tool contracts - don't trust function names
Handle SOAP tools - add operation parameter
Implementation-agnostic docs - no Python/MCP code in SKILL.md
Foundation first - query aggregators before specialized tools
Disambiguate carefully - resolve IDs properly
Implement fallbacks - Primary -> Fallback -> Default
Grade evidence - T1-T4 tiers on claims
Quantified completeness - numeric minimums per section
Synthesize - models and hypotheses, not just lists

See OPTIMIZE_INTEGRATION.md for detailed application of each pillar.

7-Phase Workflow

Phase	Duration	Description
1. Domain Analysis	15 min	Understand use cases, data types, analysis phases
2. Tool Discovery	30-45 min	Search, read configs, test tools (MANDATORY)
3. Tool Creation	0-60 min	Create missing tools via devtu-create-tool
4. Implementation	30-45 min	Write python_implementation.py with tested tools
5. Documentation	30-45 min	Write SKILL.md (agnostic) + QUICK_START.md
6. Validation	15-30 min	Run test suite, validate checklist, manual verify
7. Packaging	15 min	Create summary, update tracking

Total: ~1.5-2 hours (without tool creation).

Phase 1: Domain Analysis

Gather concrete use cases and expected outputs
Identify inputs, outputs, and intermediate data types
Break workflow into logical phases
Review existing skills in skills/ for patterns

Phase 2: Tool Discovery and Testing

Search tools in /src/tooluniverse/data/*.json (186 tool files). For each tool, read its config to understand parameters and return schema. See PARAMETER_VERIFICATION.md for common pitfalls.

Create and run a test script using test_tools_template.py. For each tool: call with known-good params, verify response format, document corrections. See TESTING_GUIDE.md for the full test suite template and procedures.

Phase 3: Tool Creation (If Needed)

Invoke devtu-create-tool when required functionality is missing and analysis is blocked. Use devtu-fix-tool if new tools fail tests.

Phase 4: Implementation

Create skills/tooluniverse-[domain]/ with:

python_implementation.py - use only tested tools, try/except per phase, progressive report writing
test_skill.py - test each input type, combined inputs, error handling

Use templates from CODE_TEMPLATES.md.

Phase 5: Documentation

Write implementation-agnostic SKILL.md using SKILL_TEMPLATE.md. Write multi-implementation QUICK_START.md using QUICKSTART_TEMPLATE.md. Key rules: zero Python/MCP code in SKILL.md, equal treatment of both interfaces in QUICK_START.

See IMPLEMENTATION_AGNOSTIC.md for format guidelines with examples.

Phase 6: Validation

Run the comprehensive test suite (see TESTING_GUIDE.md). Validate against VALIDATION_CHECKLIST.md. Perform manual verification: load ToolUniverse fresh, copy-paste QUICK_START example, verify output works.

Phase 7: Packaging

Create summary document using PACKAGING_TEMPLATE.md. Update session tracking if creating multiple skills.

Skill Integration

Skill	When to Use
devtu-create-tool	Critical functionality missing
devtu-fix-tool	Tool returns errors or unexpected format
devtu-optimize-skills	Evidence grading, report optimization

Quality Indicators

High quality: 100% test coverage before docs, agnostic SKILL.md, multi-implementation QUICK_START, fallback strategies, parameter corrections table, response format docs.

Red flags: Docs before testing, Python in SKILL.md, assumed parameters, no fallbacks, SOAP tools missing operation, no test script.

Reference Files

File	Content
`SKILL_TEMPLATE.md`	Template for writing SKILL.md
`QUICKSTART_TEMPLATE.md`	Template for writing QUICK_START.md
`TESTING_GUIDE.md`	Test suite template and procedures
`VALIDATION_CHECKLIST.md`	Pre-release quality checklist
`PACKAGING_TEMPLATE.md`	Summary document template
`PARAMETER_VERIFICATION.md`	Tool parameter verification guide
`OPTIMIZE_INTEGRATION.md`	devtu-optimize-skills 10-pillar integration
`IMPLEMENTATION_AGNOSTIC.md`	Implementation-agnostic format guide with examples
`CODE_TEMPLATES.md`	Python implementation and test templates
`test_tools_template.py`	Tool testing script template

how to use create-tooluniverse-skill

How to use create-tooluniverse-skill on Cursor

AI-first code editor with Composer

Prerequisites

Before installing skills in Cursor, ensure your development environment meets these requirements:

›Cursor installed and configured on your development machine
›Node.js version 16.0+ with npm package manager (verify with node --version)
›Active project directory or workspace where you want to add create-tooluniverse-skill

Execute installation command

Execute the skills CLI command in your project's root directory to begin installation:

$npx skills add https://github.com/mims-harvard/tooluniverse --skill create-tooluniverse-skill

The skills CLI fetches create-tooluniverse-skill from GitHub repository mims-harvard/tooluniverse and configures it for Cursor.

Select Cursor when prompted

The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:

◆ Which agents do you want to install to?

│

│ ── Universal (.agents/skills) ── always included ────

│ • Amp

│ • Antigravity

│ • Cline

│ • Codex

│ ●Cursor(selected)

│ • Cursor

│ • Windsurf

Verify installation

Confirm successful installation by checking the skill directory location:

.cursor/skills/create-tooluniverse-skill

Reload or restart Cursor to activate create-tooluniverse-skill. Access the skill through slash commands (e.g., /create-tooluniverse-skill) or your agent's skill management interface.

⚠

Security & Verification Notice

We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.

Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.

Additional Resources

›View source code on GitHub ›Skills CLI documentation ›Learn more about Cursor ›What are agent skills?

List & Monetize Your Skill

Submit your Claude Code skill and start earning

GET_STARTED →

Use Cases▌

User Story & Requirements Generation

Create detailed user stories, acceptance criteria, and feature specs

Example

Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios

✓

Reduce spec writing time by 50%, ensure comprehensive coverage

Competitive Analysis

Research competitors, compare features, identify gaps

Example

Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities

✓

Complete competitive research in 2 hours instead of 2 days

Roadmap Prioritization

Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs

Example

Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale

✓

Make data-driven prioritization decisions faster

Stakeholder Communication

Draft PRDs, status updates, and stakeholder presentations

Example

Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement

✓

Save 3-5 hours/week on communication overhead

Implementation Guide▌

Prerequisites

›Claude Desktop or compatible AI client
›Access to product documentation and roadmap tools (Jira, Notion, etc.)
›Understanding of product management frameworks (RICE, Jobs-to-be-Done, etc.)
›Stakeholder contact information and communication channels

Time Estimate

30-60 minutes to see productivity improvements

Installation Steps

1.Install product management skill
2.Start with user story generation for known feature
3.Progress to competitive analysis: research 2-3 competitors
4.Use for roadmap prioritization: apply RICE/ICE scoring
5.Draft stakeholder communications and refine based on feedback
6.Build template library for recurring PM tasks
7.Share effective prompts with product team

Common Pitfalls

⚠Not validating competitive research—verify facts before sharing
⚠Accepting user stories without involving engineering team
⚠Over-relying on frameworks without qualitative judgment
⚠Not customizing outputs to company culture and communication style
⚠Skipping stakeholder validation of generated requirements

Best Practices▌

✓ Do

+Validate research and competitive analysis with real data
+Collaborate with engineering when generating technical requirements
+Customize frameworks and templates to your company context
+Use skill for first drafts, refine with stakeholder input
+Document successful prompt patterns for PM tasks
+Combine AI efficiency with human judgment and intuition

✗ Don't

−Don't publish competitive analysis without fact-checking
−Don't finalize user stories without engineering review
−Don't make prioritization decisions solely on AI scoring
−Don't skip customer validation of generated requirements
−Don't ignore company-specific context and culture

💡 Pro Tips

★Provide context: company goals, constraints, customer feedback
★Ask for alternatives: 'Show 3 ways to prioritize this roadmap'
★Request stakeholder-specific formatting: 'Executive summary vs. engineering spec'
★Use skill for 70% generation + 30% customization to company needs

When to Use This▌

✓ Use When

Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.

✗ Avoid When

Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.

Learning Path▌

1Basic: user stories, feature specs, status updates
2Intermediate: competitive analysis, prioritization frameworks, PRDs
3Advanced: product strategy, go-to-market planning, OKR setting
4Expert: product vision, market positioning, business model innovation

Discussion

Product Hunt–style comments (not star reviews)

No comments yet — start the thread.

general reviews

Ratings

4.8★★★★★55 reviews

★★★★★Aarav Nasser· Dec 28, 2024
create-tooluniverse-skill has been reliable in day-to-day use. Documentation quality is above average for community skills.
★★★★★Shikha Mishra· Dec 20, 2024
Keeps context tight: create-tooluniverse-skill is the kind of skill you can hand to a new teammate without a long onboarding doc.
★★★★★Anika Yang· Dec 20, 2024
Keeps context tight: create-tooluniverse-skill is the kind of skill you can hand to a new teammate without a long onboarding doc.
★★★★★Chinedu Mensah· Dec 16, 2024
create-tooluniverse-skill reduced setup friction for our internal harness; good balance of opinion and flexibility.
★★★★★Aarav Liu· Dec 16, 2024
I recommend create-tooluniverse-skill for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
★★★★★Harper Abbas· Dec 8, 2024
create-tooluniverse-skill fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
★★★★★Chen Sethi· Nov 23, 2024
create-tooluniverse-skill fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
★★★★★Sakshi Patil· Nov 19, 2024
We added create-tooluniverse-skill from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
★★★★★Aarav Chen· Nov 19, 2024
Useful defaults in create-tooluniverse-skill — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
★★★★★Yash Thakker· Nov 11, 2024
Registry listing for create-tooluniverse-skill matched our evaluation — installs cleanly and behaves as described in the markdown.

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