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Optimize AI Agent Skills with Create Skill Test Tool

Optimize AI Agent Skills with Create Skill Test Tool

Regular price £34.99
Regular price £34.99 Sale price
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Instant download One-time payment Lifetime access
Works withClaude CodeCursorCodexGemini CLI
Optimize AI Agent Skills with Create Skill Test Tool

Optimize AI Agent Skills with Create Skill Test Tool

Regular price £34.99
Regular price £34.99 Sale price
SAVE Sold out

Optimize AI Agent Skills with Create Skill Test Tool

The Create Skill Test Tool is designed to scaffold evaluation specifications, ensuring AI agent skills are thoroughly tested according to the Vally eval.yaml schema. This tool is essential for creating robust skill tests, writing evaluation stimuli, defining graders and rubrics, accurately sizing evaluations for statistical power, and organizing test fixture files. It addresses the potential for overfitting, making sure the skills are evaluated fairly and effectively.

What this skill does

  • Scaffolds eval.yaml specifications for AI agent skills.
  • Conforms to the Vally schema, ensuring evaluations pass skill-validator check and check_eval_quality.py.
  • Facilitates the creation of evaluation stimuli, graders, and rubrics.
  • Ensures evaluations are statistically powerful enough to provide a meaningful verdict.
  • Organizes test fixture files and prevents overfitting to the skill’s language.

Who it is for

  • Developers working with AI agent skills in Claude Code, Cursor, or Codex.
  • Development teams needing to create and maintain evaluation specs for AI skills.

Use cases

  • Creating new evaluation specs for AI skills to ensure consistent performance.
  • Adding evaluation stimuli to existing tests to maintain skill quality.
  • Setting up or repairing fixture files for reliable test execution.
  • Reviewing rubrics and graders to prevent overfitting in skill evaluations.

Technical details

  • Integrates with your existing skills in the dotnet/skills repository.
  • Handles eval.yaml schema requirements for the Vally format.
  • Requires skills or agent names under plugins/ /skills/ or plugins/ /agents/.

Source & Licence

This package is built on open-source work published by dotnet (dotnet/skills) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

  • Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
  • Format: ZIP archive containing the skill files, documentation and the original licence.
  • Support: support@mcpcart.com — we aim to reply within 2 business days.
  • Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.

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Reviews

Trusted by Developers & Marketers

Here's what buyers say about the skills they use every day.

Ran it on a client's Google Ads account and it flagged wasted spend we'd been missing for months. Paid for itself on day one.

Optimize Ad Spend: Ad Account Auditor
James T.
PPC Specialist, UK

We finally caught broken conversion tags before launch instead of after. The pre-launch checklist alone is worth the price.

Optimize Conversion Tracking: Pre-Launch QA
Sofia M.
Growth Marketer

Dropped it into Claude Code and my LCP went from 4.1s to 1.9s in an afternoon. It explains every fix it suggests, so I actually learned something too.

Optimize Core Web Vitals
Daniel K.
Front-end Developer

Our agency uses it as the final review step on every PR now. It catches security issues our linters never did.

Optimize Your Code: Best Practices & Security
Priya R.
Tech Lead

Made WCAG 2.2 compliance actually manageable. It walked through our whole storefront and produced a fix list our devs could work from directly.

Enhance Web Accessibility: WCAG 2.2
Laura B.
Product Manager

As an expat freelancer in France, the DGFIP simulation saved me a very expensive appointment with an accountant. Incredibly thorough.

AI Tax Audit Skill: DGFIP Fiscal Control
Mark D.
Freelance Consultant, Paris

Works with both Cursor and Claude Code exactly as advertised. Setup took less than five minutes with the included README.

Optimize Profits: AI Conversion Value Mapper
Anna W.
E-commerce Manager

Instant delivery, clean files, clear docs. This is how digital products should be sold. Already bought three more skills.

AI Comptable: French Accounting
Thomas L.
Startup Founder

Support answered my install question within a couple of hours on a Sunday. The skill itself has become part of my daily workflow.

Optimize Core Web Vitals
Yuki S.
Indie Developer