Trusted mouse click with no pointer trajectory in the session (teleport-click)
bh.click_without_trajectory ·
What it catches
FP-Agent (arXiv 2605.01247, radar G11): the #1 discriminative AI-agent signal — every tested LLM browser agent (Operator/Atlas, Claude-for-Chrome, Comet, Manus, Browser-Use, Skyvern) clicks at target coordinates with ZERO continuous mouse movement (CDP/vision-driven teleport). EVADES-first GROUNDED 2026-06-24: a CDP Input.dispatchMouseEvent click produced a trusted, mouse-origin (detail=1) click with 0 mousemove/pointermove events, while a real move+click fired 6. FP-safe gate: detail>=1 (excludes keyboard Enter/Space activation, detail=0) + maxTouchPoints==0 (a touch tap fires click with no mousemove) + zero total pointer movement (a real mouse cursor entering/jittering the page emits mousemove first). Behavioral/corroborating + experimental: the residual FP is a desktop user whose cursor was pre-positioned over the target and clicked without moving (rare); corroborating-only, so it cannot convict alone.
Signals it reads
behavioral.click_without_trajectory
How it fires
present