pf2e.fyi
From Pathfinder Society Scenario #3-11: No Time for Treason, which isn't enabled.

Muesello's Summoning Rune

COMPLEX HAZARD 3
Stealth +10 (expert)
Description A cloud of invisible magical sensors in a 5-foot radius surrounds an invisible wall or floor rune the size of the creature to be summoned.

Disable DC 18 Acrobatics to approach without triggering the trap followed by DC 20 Thievery (trained) to erase the rune, or Dispel Magic (2nd rank; counteract DC 18) to counteract the rune


Summon Monster (arcane, summon)
Trigger A creature enters the cloud of magical sensors.

Effect This trap summons a Sod Hound. The sod hound rolls initiative and remains for 7 rounds, after which the spell ends and the sod hound disappears. The sod hound also disappears if someone disables the trap before the duration expires. The summoned sod hound can use 3 actions each round and can use reactions, unlike most summoned creatures.
Reset The trap resets each day at dawn.
Pathfinder Society Scenario #3-11: No Time for TreasonOGL