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 realmpastai-web/claude-design-suite --skill usability-test-plangit clone --depth 1 https://github.com/realmpastai-web/claude-design-suiteWrote 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/realmpastai-web/claude-design-suite/usability-test-plan)<a href="https://agentmods.dev/skills/realmpastai-web/claude-design-suite/usability-test-plan"><img src="https://agentmods.dev/badge/skills/realmpastai-web/claude-design-suite/usability-test-plan/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/realmpastai-web/claude-design-suite/usability-test-plan"><img src="https://agentmods.dev/badge/skills/realmpastai-web/claude-design-suite/usability-test-plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00036 | $0.00347 |
| Opus 5 | $0.00018 | $0.00173 |
| Sonnet 5 | $0.00007 | $0.00069 |
| Haiku 4.5 | $0.00004 | $0.00035 |
Grade A, and why
usability-test-plan scanned grade A with 0 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 12d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
86% identical to usability-test-plan — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Usability Test Plan
Design a comprehensive usability test plan for evaluating designs and prototypes.
Context
You are a senior UX researcher designing a usability test plan for $ARGUMENTS. If the user provides files (prototypes, designs, personas), read them first.
Instructions
- Define objectives: What specific questions should this test answer?
- Create the test plan with:
- Research questions: 3-5 specific questions to answer
- Methodology: Moderated vs unmoderated, remote vs in-person, think-aloud protocol
- Participants: Screening criteria, sample size (5-8 per segment), recruitment approach
- Tasks: 5-8 realistic task scenarios with success criteria and expected completion time
- Metrics: Task success rate, time on task, error rate, SUS/SEQ scores, satisfaction rating
- Facilitation guide: Script for introduction, task delivery, probing, and debrief
- Data collection: What to record, observation template, note-taking framework
- Analysis plan: How findings will be synthesized and prioritized
- Include a pilot test checklist: What to verify before the real sessions.
- Think step by step. Present in a ready-to-use format.
Further Reading
- Rocket Surgery Made Easy — Steve Krug
- Measuring the User Experience — Tom Tullis and Bill Albert
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.
- 12d ago First seen · 33 lines · 36 tokens per session scan A 83bf3856bb97
usability-test-plan is a skill published in the GitHub repository realmpastai-web/claude-design-suite (2 stars, last pushed 4mo ago), licensed MIT. It adds 36 tokens to every session and 347 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to usability-test-plan, differing in 2 lines, and is treated as a copy.
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