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web.browser.element_visible
AGENTIC
Navigates to a URL via headless browser and checks whether a specific CSS selector is present in the DOM. Catches agents that claim UI actions succeeded but never actually modified the page.
Scorecard
| Determinism | agentic |
| Evidence Quality | hard-state |
| Intended Use | eval-and-train |
| Gating Required | No |
| Permissions | net:browser |
Test Fixtures
9 total
| Type | Count |
|---|---|
| Positive | 3 |
| Negative | 3 |
| Adversarial | 3 |
Metadata
| Version | 0.1.0 |
| Domain | web |
| Task Type | dom_verification |
| Contributor | vr.dev |
| Source | arXiv:2307.13854 |
Use in SDK
# CLI
vr verify --verifier web.browser.element_visible --ground-truth '{"order_id": "ORD-42"}'
# Python
from vrdev import verify
result = verify("web.browser.element_visible", ground_truth={"order_id": "ORD-42"})
# API
curl -X POST https://api.vr.dev/v1/verify \
-H "X-API-Key: vr_live_..." \
-d '{"verifier": "web.browser.element_visible", "ground_truth": {"order_id": "ORD-42"}}'