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 AI-Unified-Process/marketplace --skill vaadin-flow-ui-testgit clone --depth 1 https://github.com/AI-Unified-Process/marketplaceWrote 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/ai-unified-process/marketplace/vaadin-flow-ui-test)<a href="https://agentmods.dev/skills/ai-unified-process/marketplace/vaadin-flow-ui-test"><img src="https://agentmods.dev/badge/skills/ai-unified-process/marketplace/vaadin-flow-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/ai-unified-process/marketplace/vaadin-flow-ui-test"><img src="https://agentmods.dev/badge/skills/ai-unified-process/marketplace/vaadin-flow-ui-test.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 | $0.00235 | $0.00568 |
| Opus 5.5 | $0.00094 | $0.00227 |
| Sonnet 5.5 | $0.00047 | $0.00114 |
| Haiku 4.5 | $0.00023 | $0.00057 |
Grade A, and why
vaadin-flow-ui-test 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 today.
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.
What it actually says
Vaadin Flow UI Test
Instructions
Write Browserless tests of the use case $ARGUMENTS for the Vaadin Flow view, extending SpringBrowserlessTest with
the real services and a Testcontainers database. Name the class UC<id><Name>Test and annotate every method with
@UseCase.
Run Directly or from /use-case-test
Run from /use-case-test, this skill follows that skill's sections "If Tests for This Use Case Already Exist",
"When a Test Fails", and "Which Layer Tests What"; it does not repeat them. The specification is the oracle: take
every expected value from it, never from what the code returns.
What to Test
As the integration layer, test the whole use case through the view: the main success scenario, every alternative flow with its message, every business rule with its allowed and rejected case, and the postconditions read back from the persisted state.
Markers
Keep this skill's rows in the Markers table of docs/architecture/stack.md exactly as
references/markers.md lists them: add them when they are missing, correct them when they
differ. Touch no other row.
What ships with it
1 file 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.
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.
- today First seen · 46 lines · 235 tokens per session scan A 6439abf5897b
vaadin-flow-ui-test is a skill published in the GitHub repository AI-Unified-Process/marketplace (150 stars, last pushed yesterday), licensed Apache-2.0. It adds 235 tokens to every session and 568 once invoked, about $0.0009 per session on Opus 5.5. 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 2026-10-25.
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