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 ncklrs/claude-chrome-user-testing --skill persona-generatorgit clone --depth 1 https://github.com/ncklrs/claude-chrome-user-testingWrote 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/ncklrs/claude-chrome-user-testing/persona-generator)<a href="https://agentmods.dev/skills/ncklrs/claude-chrome-user-testing/persona-generator"><img src="https://agentmods.dev/badge/skills/ncklrs/claude-chrome-user-testing/persona-generator/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/ncklrs/claude-chrome-user-testing/persona-generator"><img src="https://agentmods.dev/badge/skills/ncklrs/claude-chrome-user-testing/persona-generator.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 | $0.00000 | $0.02575 |
| Opus 5 | $0.00000 | $0.01288 |
| Sonnet 5 | $0.00000 | $0.00515 |
| Haiku 4.5 | $0.00000 | $0.00258 |
Grade A, and why
persona-generator 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 300 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Persona Generator Skill
This skill provides the schema and generation logic for creating custom user testing personas.
Purpose
Generate complete, realistic user personas from natural language descriptions. The generated personas are compatible with the /user-test command and follow the same schema as built-in personas.
Complete Persona Schema
{
"id": "string",
"name": "string",
"category": "custom",
"techComfort": "number (1-10)",
"patience": "number (1-10)",
"genderVariants": {
"male": {
"name": "string",
"pronouns": "he/him",
"age": "number",
"background": "string (2-3 sentences)",
"additionalTraits": ["string array (2-4 items)"]
},
"female": {
"name": "string",
"pronouns": "she/her",
"age": "number",
"background": "string (2-3 sentences)",
"additionalTraits": ["string array (2-4 items)"]
},
"neutral": {
"name": "string",
"pronouns": "they/them",
"age": "number",
"background": "string (2-3 sentences)",
"additionalTraits": ["string array (2-4 items)"]
}
},
"traits": {
"readingSpeed": "slow | medium | fast",
"clickConfidence": "hesitant | normal | decisive",
"errorRecovery": "gives-up | persistent | adaptive | escalates",
"scrollBehavior": "methodical | searching | impatient",
"formFilling": "careful | rushed | thorough"
},
"preferences": {
"prefersVisual": "boolean",
"expectsMobile": "boolean",
"trustsAutofill": "boolean",
"readsInstructions": "boolean"
},
"timing": {
"baseReadingWPM": "number (100-400)",
"clickDelay": "number (200-2500 ms)",
"hoverBeforeClick": "number (100-1000 ms)",
"confusionPause": "number (3000-25000 ms)",
"successPause": "number (300-1000 ms)",
"pageLoadTolerance": "number (2000-10000 ms)",
"formFieldPause": "number (400-1200 ms)"
},
"narrationStyle": {
"vocabulary": "formal | casual | technical | simple",
"frustrationThreshold": "number (1-10)",
"verbosity": "terse | normal | chatty",
"expressions": ["string array (10-15 characteristic phrases)"]
},
"frustrationTriggers": ["string array (8-15 specific triggers)"],
"positiveReactions": ["string array (8-15 positive elements)"],
"typicalBehaviors": ["string array (8-12 typical behaviors)"],
"mentalModels": {
"formsAre": "string (how user perceives forms)",
"buttonsAre": "string (how user perceives buttons)",
"websitesAre": "string (how user perceives websites)",
"errorsAre": "string (how user perceives errors)",
"passwordsAre": "string (how user perceives passwords)",
"accountsAre": "string (how user perceives accounts)"
}
}
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.
- 11d ago First seen · 300 lines · 0 tokens per session scan A 0e3d013c4db3
persona-generator is a skill published in the GitHub repository ncklrs/claude-chrome-user-testing (20 stars, last pushed 8mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,575 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
age-inclusive-design
Design for users of all ages. Use when user asks to 'make accessible for older adults', 'improve age-inclusive design', 'help elderly users', 'reduce age-related friction', 'design for all ages', 'age-friendly interface'.
ux-researcher
!cat skills/shared/protocols/ux-protocol.md 2>/dev/null || true !cat skills/shared/protocols/design-mindset-and-rules.md 2>/dev/null || true !cat .production-grade.yaml 2>/dev/null || echo "No config — using defaults".
ux-review
UX/UI Review & Mockup Feedback: Reviews user interfaces, mockups, and wireframes for usability, accessibility, consistency, and user experience best practices. Use whenever the user wants feedback on a UI design, mockup, wireframe, screenshot of their app, or mentions 'UX', 'UI', 'mockup', 'wireframe', 'user…
ux-principles
User experience design principles for developers.
ux-principles
User research, usability heuristics, user psychology, accessibility, inclusive design, user testing, and UX metrics.
seo
Optimize for search engine visibility and ranking. Use when asked to "improve SEO", "optimize for search", "fix meta tags", "add structured data", "sitemap optimization", or "search engine optimization".