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 browserbase/skills --skill ui-testgit clone --depth 1 https://github.com/browserbase/skillsWrote 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/browserbase/skills/ui-test)<a href="https://agentmods.dev/skills/browserbase/skills/ui-test"><img src="https://agentmods.dev/badge/skills/browserbase/skills/ui-test/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/browserbase/skills/ui-test"><img src="https://agentmods.dev/badge/skills/browserbase/skills/ui-test.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Agent Snooping · line 185 Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
- high YARA Match · line 224 YARA rule matched a known malware signature (reverse shell, backdoor, ransomware, C2 framework, or info stealer).Fix: Remove the malware payload or compromised file entirely. Investigate how it entered the skill and audit all other artifacts for additional indicators of compromise.
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 | $0.00087 | $0.06972 |
| Opus 5.5 | $0.00035 | $0.02789 |
| Sonnet 5.5 | $0.00017 | $0.01394 |
| Haiku 4.5 | $0.00009 | $0.00697 |
Grade A, and why
ui-test scanned grade A with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directorieslowAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
Add both patterns to `.claude/settings.json` (project-level) or `~/.claude/settings.json` (user-level): Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
s=$(curl -s -o /dev/null -w "%{http_code}" "http://localhost:$port" 2>/dev/null) The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- EXAMPLES.md 23 KB
- LICENSE.txt 1.0 KB
- README.md 4.0 KB
- references/adversarial-patterns.md 3.6 KB
- references/browser-recipes.md 6.5 KB
- references/design-consistency.md 2.5 KB
- references/design-system.example.md 4.0 KB
- references/exploratory-testing.md 2.9 KB
- references/parallel-testing.md 7.2 KB
- references/report-template.html 9.3 KB
- references/ux-heuristics.md 18 KB
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.
- 1mo ago First seen · 605 lines · 87 tokens per session scan A a47b912bb9dc
ui-test is a skill published in the GitHub repository browserbase/skills (3,738 stars, last pushed 19d ago), with no licence file. It adds 87 tokens to every session and 6,972 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 2 findings (reads agent configuration directories, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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