skill-tester vs skills-for-copilot-studio
skill-tester is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑16.
skill-tester is a plugin bundle for AI coding tools published by angri450. No marketplace we read lists it any more. skills-for-copilot-studio is a plugin bundle for AI coding tools published by microsoft. Marketplaces we read that list it: 1 (Copilot CLI: github/awesome-copilot). As of our marketplace pass on 2026-10-23. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  skills-for-copilot-studio | |
|---|---|---|
| Community marketplace angri450/nong.toolkit.net | Removed on 2026-10-16 Version: not stated Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Not listed |
| Copilot CLI: github/awesome-copilot | Not listed | Listed Version: 1.0.11 Forks (GitHub): 101 Stars (GitHub): 478 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | skill-testerno longer listed · | skills-for-copilot-studio |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 1 | 478 |
| Forks (GitHub) (differs) | 0 | 101 |
| Last release (differs) | Not published | 2026-10-23 |
| Where it runs | Installs as a plugin bundle | Installs as a plugin bundle |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | Not published | 2 |
| Parts of the bundle (differs) | Not published | 36 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/angri450/nong.toolkit.net | github.com/microsoft/skills-for-copilot-studio |
| Changes in the last 7 days (differs) | 0 | 2 |
| First seen (differs) | 2026-10-15 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of skill-tester
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Assess a Claude skill against Anthropic's skill authoring best practices: measured limits, judged criteria, description trigger test, evaluations, and a verdict.
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Create new skills, improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to…
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Tools for authoring and verifying agent skills: friction-pattern extraction and skill quality verification
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Review and ensure skills maintain high quality standards. Use when creating new skills, updating existing skills, or auditing skill quality. Checks for progressive disclosure…
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Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run…
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Evaluates Claude Agent Skills on 10 quality axes with letter grades (A+ through F) and specific improvement recommendations. Use when auditing a skill, comparing skills…
What each says it does
skill-tester
Skill quality testing — trigger precision, description accuracy, feedback loops
skills-for-copilot-studio
Microsoft Copilot Studio YAML authoring toolkit. Create, edit, validate, and test Copilot Studio agents using YAML files.
How to run each
skill-tester
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
skills-for-copilot-studio
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: skill-tester · What it can do: skills-for-copilot-studio · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/github/awesome-copilot/blob/HEAD/.github/plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.