Traps & Doors

Traps & Doors is the skill that lets you detect and disarm traps (hold CTRL while moving in the direction of the trap, not all traps can be disarmed) as well as find hidden doors. Higher skill lets you disarm traps with a better chance of success and detect traps before stepping on them. Most players will want to eventually train in this skill to avoid the deadly Zot traps of the deeper floors.

Traps & Doors can always be trained.

Traps & Doors Aptitudes

From Dungeon Crawl Stone Soup 0.10.1 in-game documentation:

Hu	Ce	Dg	Ds	Dr	DD	DE	HE	SE	Fe	Gh	Ha	Ko	Mf	Mi	Mu	Na	Op	Og	HO	Sp	Te	Tr	Vp
0	-2	-1	-1	0	1	0	0	0	2	-1	0	0	-1	0	-2	0	1	-2	0	3	0	-4	0