begin_scheme_with_agents_effect

begin_scheme_with_agents_effect = {
	save_scope_as = scheme_launcher

	# Flag that we _don't_ need more agents.
	set_variable = {
		name = agents_added
		value = yes
		days = 1
	}

	# Start the scheme.
	start_scheme = {
		type = $SCHEME_TYPE$
		$TARGET_TYPE$ = $TARGET_SCOPE$

		save_scope_as = new_scheme
	}

	# Assign agent slots et al. to the newly created scheme.
	scope:new_scheme ?= {
		# Add our starting agents.
		add_agent_slot = $AGENT_1$
		add_agent_slot = $AGENT_2$
		add_agent_slot = $AGENT_3$
		add_agent_slot = $AGENT_4$
		add_agent_slot = $AGENT_5$

		# Assign initial agents for non-player schemers.
		if = {
			limit = {
				scope:scheme_launcher = {
					is_ai = yes
				}
			}
			auto_assign_scheme_agents = yes
		}

		# If we have a custom charge threshold to complete, set that here.
		## Overthrow Regent.
		if = {
			limit = { scheme_type = overthrow_regent }
			set_variable = {
				name = custom_charge_threshold
				value = 1
			}
		}
		# Set up our grace period.
		set_variable = {
			name = secrecy_grace_period
			value = secrecy_grace_character_total_starting_value
		}

		# puppet schemes are always exposed to their puppeteer
		if = {
			limit = {
				exists = scope:scheme_launcher.puppeteer
			}
			expose_scheme_to = scope:scheme_launcher.puppeteer
		}		

		# We tag commanding_puppeteer only on puppeteer-ordered schemes
		if = {
			limit = {
				exists = scope:actor
				exists = scope:puppet_or_actor
				scope:is_puppet_action ?= yes
				scheme_owner = scope:puppet_or_actor
			}
			set_variable = {
				name = commanding_puppeteer
				value = scope:actor
			}
		}
	}

	if = { # start_scheme can fail, leaving no scheme to open the view on
		limit = { exists = scope:new_scheme }
		open_view = {
			view = intrigue_window
			player = scope:new_scheme.scheme_owner
		}
	}
}

As written in game/common/scripted_effects/00_scheme_scripted_effects.txt.