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Card 363 of 9852026-09-16 issue

Observed arrival · 2026-09-16

Groundmark's evidence-first agent audit

groundmark.cloud Observed source
Editorial interest 78/100 Selection signal · not a rating of the site

Groundmark describes a security audit service that probes AI agents for injection, tool misuse, leakage, grounding, cost, and latency problems.

Landing page captured for the 2026-09-16 issue.

Field notes

Groundmark describes an endpoint-based audit workflow that identifies callable tools, runs a fixed battery of probes, and preserves the relevant transcript when a test fails. Its six packs total 72 probes, including separate checks for prompt injection, tool misuse, leakage, grounding, cost, and latency. The page says latency is measured at the median and 95th percentile, while recurring runs are intended to catch regressions after model-vendor changes. The report viewer is currently marked “In build” and uses sample data.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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groundmark.cloud

Landing page observed 2026-09-16. The live site may have changed.