As shown below.. the vine bridge trap is not searchable and it is not disarmable. It should be both of those things, as per a reg. realm.
[HP=451/MA=149]:search e
You notice nothing different to the east.
[HP=451/MA=149]:search e
You notice nothing different to the east.
[HP=451/MA=149]:search e
You notice nothing different to the east.
[HP=451/MA=149]:search e
You notice nothing different to the east.
[HP=451/MA=149]:search e
You notice nothing different to the east.
[HP=451/MA=149]:search e
You notice nothing different to the east.
[HP=451/MA=149]:search e
You notice nothing different to the east.
Your strength returns to normal.
You begin to feel calmer.
Your meditative state ends.
[HP=451/MA=172]:disarm trap e
Your command had no effect.
[HP=451/MA=172]:
Vine Bridge, Mists
Also here: Aldous, Soma.
Obvious exits: east, west
[HP=451/MA=172]:search e
You notice nothing different to the east.
[HP=451/MA=172]:.@do e
You say "@do e"
[HP=451/MA=172]:
Vine Bridge, Mists
Also here: Soma.
Obvious exits: east, west
[HP=451/MA=172]:par
You are not in a party at the present time.
Albert Hoffman (Bard) [M: 84%] [H:100%] - Frontrank
[HP=451/MA=172]:
Vine Bridge, Mists
Obvious exits: east, west
[HP=451/MA=172]:batt
You raise your head and chant a battle cry!
Your blood races in your veins!
[HP=451/MA=152]:sn
Attempting to sneak...
[HP=451/MA=152]:e
The bridge twists unnaturally, dropping you into the mists below!
Shallow Jungle, Mud Pit
Also here: Aldous.
Obvious exits: southeast
You land with a heavy thud!
[HP=324/MA=152]:sn
Attempting to sneak...
[HP=324/MA=152]:par
You are not in a party at the present time.
Albert Hoffman (Bard) [M: 74%] [H: 71%] - Frontrank
[HP=324/MA=152]:soot
You sing a soothing melody.
You feel soothed.
[HP=324/MA=134]:sn
Attempting to sneak...
The reason is the "trap" isn't coded in the datafiles as a trap, it's coded as an exit spell.
#: 851, Name: bridge trigger spell, Short: , Magery: None, LVL: 200, Mana: 0, Diff: 0
>> Target: User -- Attack Type: Normal -- TextBlock 2775
>> References: Execute: Textblock 2775, Room: Vine Bridge, Mists (16/1206)
Actually it is coded as a 'Spell Trap' which is a trap, that when failed or triggered casts the spell.
;)