Will the AI accept Undermine Governance?

Yes: it is accepted automatically.

Interaction · Vassal actions

Undermine Governance

from 30Influence

variesGoldAccepted automatically

Attempt to disrupt the recipient's Governor Efficiency

What you need

You

To send it

Is an Adult
Is not at war with the target
If
a check the game hides
Then
- You › top_participant_group:dynastic_cycle:
  NOT = { participant_group_type = advancement_movement }
… must have at least -40 Governor Efficiency (Current: …)
You may only attempt to influence … Governor Efficiency every 5 years

To see it in the menu

If played by the AI:
- you has administrative government mechanic
- Your top liege › Any vassal: Is a Governor
you has administrative government mechanic

The character you target

Is a Governor
top_liege ?= scope:actor.top_liege

Undermine Governance is a vassal character interaction in Crusader Kings III. You need: Is an Adult, Is not at war with the target and You may only attempt to influence … Governor Efficiency every 5 years. Accepted automatically. It costs Influence (from 30), Gold (varies). Patch 1.20.1.2, from game/common/character_interactions/06_ep3_interactions.txt.

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Quick answers (3)

What are the requirements for Undermine Governance in CK3?: You: Is an Adult, Is not at war with the target and You may only attempt to influence … Governor Efficiency every 5 years. (patch 1.20.1.2)
Will the AI accept Undermine Governance?: Yes: it is accepted automatically.
How much does Undermine Governance cost?: Influence (from 30), Gold (varies) (patch 1.20.1.2).

Will they accept?

The other character has no choice: the game accepts it automatically.

What happens

Effects

Depending on yes:
- When yes is scope:diplomacy damage › You:
  - duel = { … }
- When yes is scope:stewardship damage › You:
  - duel = { … }
- When yes is scope:intrigue damage › You:
  - duel = { … }
- In any other case › The character you target:
  - If has the Modifier: Bolstered Governance: Loses “Bolstered Governance”
  - Otherwise: Gains the modifier “Undermined Governance” for 10 years
  - If played by the AI: Opinion: Undermined My Governance

Options when sending

Impede Efforts
Bribe Administrators
Question Efficacy
Entangle Administration
Muddy Waters

• the game's own tooltip text · ◦ our reading of the script line · code the script where neither exists

Who can use it and sees it (is_available, is_shown) (20 lines of game script)

is_available = trigger_if = {
	limit = {
		is_ai = yes
	}
	government_has_mechanic = administrative
	top_liege ?= {
		any_vassal = {
			is_governor = yes
			this != root
		}
	}
}
is_shown = scope:actor = {
	government_has_mechanic = administrative
}
scope:recipient = {
	is_governor = yes
	this != scope:actor
	top_liege ?= scope:actor.top_liege
}

As written in game/common/character_interactions/06_ep3_interactions.txt.

Can be sent when (is_valid…) (58 lines of game script)

scope:actor = {
	is_adult = yes
	NOT = {
		is_at_war_with = scope:recipient
	}
}
trigger_if = {
	limit = {
		scope:actor = {
			exists = top_participant_group:dynastic_cycle
		}
	}
	scope:actor = {
		top_participant_group:dynastic_cycle ?= {
			NOT = {
				participant_group_type = advancement_movement
			}
		}
	}
}
custom_tooltip = {
	text = damage_efficiency_interaction_too_low_tt
	scope:recipient.governor_efficiency_presented >= damage_efficiency_minimum_value
}
custom_tooltip = {
	text = efficiency_interaction_cooldown_tt
	scope:recipient = {
		NOR = {
			is_target_in_variable_list = {
				name = efficiency_boosters
				target = scope:actor
			}
			is_target_in_variable_list = {
				name = efficiency_damagers
				target = scope:actor
			}
		}
	}
}
custom_tooltip = {
	text = damage_efficiency_interaction_too_low_tt
	scope:recipient.governor_efficiency_presented >= damage_efficiency_minimum_value
}
custom_tooltip = {
	text = efficiency_interaction_cooldown_tt
	scope:recipient = {
		NOR = {
			is_target_in_variable_list = {
				name = efficiency_boosters
				target = scope:actor
			}
			is_target_in_variable_list = {
				name = efficiency_damagers
				target = scope:actor
			}
		}
	}
}

As written in game/common/character_interactions/06_ep3_interactions.txt.

Effects (on_send, on_accept, on_decline) (28 lines of game script)

on_send = scope:recipient = {
	add_to_variable_list = {
		name = efficiency_damagers
		target = scope:actor
		years = 2
	}
}
on_accept = switch = {
	trigger = yes
	scope:diplomacy_damage = {
		damage_governor_efficiency_duel_effect = {
			SKILL = diplomacy
		}
	}
	scope:stewardship_damage = {
		damage_governor_efficiency_duel_effect = {
			SKILL = stewardship
		}
	}
	scope:intrigue_damage = {
		damage_governor_efficiency_duel_effect = {
			SKILL = intrigue
		}
	}
	fallback = {
		damage_governor_efficiency_success_effect = yes
	}
}

As written in game/common/character_interactions/06_ep3_interactions.txt.

Category: Vassal actions
Cost: Influence: from 30
Cost: Gold: varies
In the menu: under More…
ID: damage_efficiency_interaction

Source: game/common/character_interactions/06_ep3_interactions.txt and the English localisation, Crusader Kings III 1.20.1.2. “You” is the character who sends it (scope:actor, or a puppet acting for you); “the character you target” is the recipient.