hci-usability-testing SKILL.md skillA
hci-usability-testing from mehranqadirian/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mehranqadirian/skills/hci-usability-testing@git:20261104.81fe8aaPins git:20261104.81fe8aa in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mehranqadirian/skills
- Path
hci/hci-usability-testing/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261104.81fe8aa, committed Nov 4, 2026
- Size
- 4,277 bytes
- Repository stars
- 13
- License
- none declared
Plans, runs and analyzes usability tests with real users. Use whenever the user wants to test a design, prototype or app with people, write test tasks or a moderator script, choose how many participants, score a SUS questionnaire, calculate task success rates and times with confidence intervals, compare versions, or turn observations into prioritized findings, even if they only say "how do I know if users can use this?". Includes tested scripts for SUS and task metrics.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# hci-usability-testing
Find out whether real people can complete real tasks with a product, and report the result with honest numbers. Builds on `hci-foundations`.
```
hci-usability-testing/
├── SKILL.md
├── scripts/
│ ├── sus_score.py SUS scoring: per participant, mean, SD, 95 percent CI, curved grade
│ └── task_metrics.py success rate (adjusted Wald interval), median and geometric mean time, errors
├── references/
│ └── running-tests.md stages, sample size, tasks, recruiting, moderating, analysis, ethics
└── templates/
├── test-plan.md plan skeleton
├── moderator-script.md neutral script and prompts
├── sus-responses.csv example input for sus_score.py
└── task-results.csv example input for task_metrics.py
```
## When to use
- Planning a first usability test, or improving an existing process
- Writing tasks, screeners, consent text and a moderator script
- Scoring SUS or computing success rates and time on task
- Comparing two designs or two versions
- Converting session notes into prioritized, evidence-based findings
## Workflow
…Read the whole file at its exact version.
How to install
mdr add mehranqadirian/skills/hci-usability-testing@sha256:621a314de849a116The line at the top of this page pins the label git:20261104.81fe8aa, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_tfv3yghgilderkim)
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Versions
The registry has recorded 1 version of this file, committed on Nov 4, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4277 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
mehranqadirian/skills · 13 stars · license none declared · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tfv3yghgilderkim GET https://markdownregistry.com/api/v1/resolve?ref=mehranqadirian/skills/hci-usability-testing GET https://markdownregistry.com/api/v1/blob/621a314de849a1164a62697416f9c652c9d2ff4ac0652f9167201e7f6bbe9ad9
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.