Game concept
Secrecy
From the game's encyclopedia
The Secrecy of a Hostile Scheme determines how likely it is for it to remain undetected from the Scheme target.
The Secrecy of a Scheme will have an initial immunity period where it is unable to be discovered. After this period, the Scheme will be at risk of being discovered every month through a Breach. Your Agents can greatly impact how well you are able to keep your Scheme secret.
A Scheme with a Secrecy of 80% has a 20% chance to be discovered on execution, and a 2% chance to be discovered each month it continues.
The game's text for patch 1.20.1.2. Words in blue are entries of the encyclopedia: hover one to read it, as in the game.
Secrecy is an entry of Crusader Kings III's in-game encyclopedia. The game explains it: "The Secrecy of a Hostile Scheme determines how likely it is for it to remain undetected from the Scheme target." It is part of Scheme. It covers Grace. Patch 1.20.1.2, from game/common/game_concepts/00_game_concepts.txt and game/localization/english/game_concepts_l_english.yml.
Source: game/common/game_concepts/00_game_concepts.txt, game/localization/english/game_concepts_l_english.yml and the English localisation, Crusader Kings III 1.20.1.2.