diff --git a/build.gradle.kts b/build.gradle.kts
index 90a21d0fbb..a5e8a3ddba 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -38,7 +38,7 @@ plugins {
     // This is *with* gradle 8.2 downloaded according the project specs, no idea what that's about
     kotlin("multiplatform") version "1.9.24"
     kotlin("plugin.serialization") version "1.9.24"
-    id("io.github.yairm210.purity-plugin") version "1.1.0" apply(false)
+    id("io.github.yairm210.purity-plugin") version "1.1.1" apply(false)
 }
 
 allprojects {
@@ -68,6 +68,8 @@ allprojects {
 
             "kotlin.collections.sortBy", // moved
             "kotlin.Throwable.getStackTrace", // moved
+
+            "kotlin.collections.random",
         )
         wellKnownPureClasses = setOf(
             "java.lang.StackTraceElement" // moved
diff --git a/core/src/com/unciv/logic/automation/Automation.kt b/core/src/com/unciv/logic/automation/Automation.kt
index d1d6a30289..2b25c0d84f 100644
--- a/core/src/com/unciv/logic/automation/Automation.kt
+++ b/core/src/com/unciv/logic/automation/Automation.kt
@@ -20,6 +20,7 @@ import com.unciv.models.ruleset.unit.BaseUnit
 import com.unciv.models.stats.Stat
 import com.unciv.models.stats.Stats
 import com.unciv.ui.screens.victoryscreen.RankingType
+import yairm210.purity.annotations.LocalState
 import yairm210.purity.annotations.Readonly
 import kotlin.math.min
 
@@ -46,6 +47,7 @@ object Automation {
     }
 
     // More complicated logic to properly weigh Food vs other Stats (esp Production)
+    @Readonly
     private fun getFoodModWeight(city: City, surplusFood: Float): Float {
         val speed = city.civ.gameInfo.speed.modifier
         // Zero out Growth if close to Unhappiness limit
@@ -66,11 +68,11 @@ object Automation {
 
         return 1f
     }
-    
+
+    @Readonly
     fun rankStatsForCityWork(stats: Stats, city: City, areWeRankingSpecialist: Boolean, localUniqueCache: LocalUniqueCache): Float {
         val cityAIFocus = city.getCityFocus()
-        val yieldStats = stats.clone()
-        val civPersonality = city.civ.getPersonality()
+        @LocalState val yieldStats = stats.clone()
         val cityStatsObj = city.cityStats
         val civInfo = city.civ
         val allTechsAreResearched = civInfo.tech.allTechsAreResearched()
@@ -168,7 +170,12 @@ object Automation {
         }
 
         // Apply City focus
-        cityAIFocus.applyWeightTo(yieldStats)
+        for (stat in cityAIFocus.statValuesForFocus) {
+            val currentStat = yieldStats[stat]
+            if (currentStat == 0f) continue
+            val statMultiplier = cityAIFocus.getStatMultiplier(stat)
+            yieldStats[stat] = currentStat * statMultiplier
+        }
 
         return yieldStats.values.sum()
     }
@@ -206,6 +213,7 @@ object Automation {
         return totalCarriableUnits < totalCarryingSlots
     }
 
+    @Readonly
     fun chooseMilitaryUnit(city: City, availableUnits: Sequence<BaseUnit>): String? {
         val currentChoice = city.cityConstructions.getCurrentConstruction()
         if (currentChoice is BaseUnit && !currentChoice.isCivilian()) return city.cityConstructions.currentConstructionFromQueue
@@ -313,6 +321,7 @@ object Automation {
     /** Checks both feasibility of Buildings with a CreatesOneImprovement unique
      *  and resource scarcity making a construction undesirable.
      */
+    @Readonly
     fun allowAutomatedConstruction(
         civInfo: Civilization,
         city: City,
@@ -325,6 +334,7 @@ object Automation {
     @Suppress("MemberVisibilityCanBePrivate")
     /** Checks both feasibility of Buildings with a [UniqueType.CreatesOneImprovement] unique (appropriate tile available).
      *  Constructions without pass uncontested. */
+    @Readonly
     fun allowCreateImprovementBuildings(
         civInfo: Civilization,
         city: City,
diff --git a/core/src/com/unciv/logic/city/CityFocus.kt b/core/src/com/unciv/logic/city/CityFocus.kt
index 4db6915cce..d363216574 100644
--- a/core/src/com/unciv/logic/city/CityFocus.kt
+++ b/core/src/com/unciv/logic/city/CityFocus.kt
@@ -69,19 +69,10 @@ enum class CityFocus(
         else -> 1f
     }
 
-    private val statValuesForFocus: List<Stat> by lazy {
+    val statValuesForFocus: List<Stat> by lazy {
         Stat.entries.filter { getStatMultiplier(it) != 1f }
     }
 
-    fun applyWeightTo(stats: Stats) {
-        for (stat in statValuesForFocus) {
-            val currentStat = stats[stat]
-            if (currentStat == 0f) continue
-            val statMultiplier = getStatMultiplier(stat)
-            stats[stat] = currentStat * statMultiplier
-        }
-    }
-
     companion object {
         @Pure fun safeValueOf(stat: Stat): CityFocus = entries.firstOrNull { it.stat == stat } ?: NoFocus
 
diff --git a/core/src/com/unciv/logic/city/CityStats.kt b/core/src/com/unciv/logic/city/CityStats.kt
index b53ebbfde2..f7ccb54a2a 100644
--- a/core/src/com/unciv/logic/city/CityStats.kt
+++ b/core/src/com/unciv/logic/city/CityStats.kt
@@ -155,6 +155,7 @@ class CityStats(val city: City) {
         return Stats(science = -25f, culture = -25f)
     }
 
+    @Readonly
     fun getGrowthBonus(totalFood: Float): StatMap {
         val growthSources = StatMap()
         val stateForConditionals = city.state
diff --git a/core/src/com/unciv/models/stats/Stats.kt b/core/src/com/unciv/models/stats/Stats.kt
index baf4903a95..0d0f9bdaf8 100644
--- a/core/src/com/unciv/models/stats/Stats.kt
+++ b/core/src/com/unciv/models/stats/Stats.kt
@@ -283,6 +283,7 @@ open class Stats(
     }
 }
 
+@InternalState
 class StatMap : LinkedHashMap<String,Stats>() {
     fun add(source: String, stats: Stats) {
         // We always clone to avoid touching the mutable stats of uniques