diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00e2a7d..24f9a6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 This changelog covers all recorded changes after `1.0.0`, grouped by release version from the git history.
 
+## 3.1.0
+
+- Added a public passive Agility event API so integrations such as skill-tree mods can contribute additional Agility points per player.
+- Applied passive Agility to both movement speed and Agility-based weapon scaling, with all contributions continuing through Ascend's configured diminishing-return curve beyond the normal investment cap.
+- Added a public refresh hook so integrations can immediately update a player's movement speed after their passive Agility changes.
+- Added automated coverage for passive contribution handling and attribute scaling beyond 100 combined Agility.
+
 ## 3.0.8
 
 - Increased Agility's default maximum movement-speed bonus from 15% to 25% so the stat retains a stronger mobility identity alongside its weapon-grade damage scaling.
diff --git a/gradle.properties b/gradle.properties
index eb07f83..57053a7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -56,7 +56,7 @@ mod_name=Ascend: SbA
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=All Rights Reserved
 # The mod version. See https://semver.org/
-mod_version=3.0.8
+mod_version=3.1.0
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html
diff --git a/src/main/java/net/fretux/ascend/player/StatEffects.java b/src/main/java/net/fretux/ascend/player/StatEffects.java
index 777dca9..888c3a9 100644
--- a/src/main/java/net/fretux/ascend/player/StatEffects.java
+++ b/src/main/java/net/fretux/ascend/player/StatEffects.java
@@ -1,5 +1,6 @@
 package net.fretux.ascend.player;
 
+import net.fretux.ascend.api.PassiveAgilityApi;
 import net.fretux.ascend.compat.IronsSpellbooksCompat;
 import net.fretux.ascend.config.AscendConfig;
 import net.minecraft.world.entity.LivingEntity;
@@ -57,7 +58,7 @@ public final class StatEffects {
         AttributeInstance movement = player.getAttribute(Attributes.MOVEMENT_SPEED);
         if (movement == null) return;
         movement.removeModifier(AGILITY_SPEED_UUID);
-        double bonus = getAgilityMovementSpeedBonus(level);
+        double bonus = getAgilityMovementSpeedBonus(player, level);
         if (bonus > 0) movement.addTransientModifier(new AttributeModifier(AGILITY_SPEED_UUID,
                 "Ascend Agility movement bonus", bonus, AttributeModifier.Operation.MULTIPLY_BASE));
     }
@@ -66,6 +67,9 @@ public final class StatEffects {
     public static double getStrengthKnockbackBonus(int level) { return normalized(level) * configured(AscendConfig.COMMON.strengthKnockbackBonus); }
     public static double getStrengthArmorPenetration(int level) { return normalized(level) * configured(AscendConfig.COMMON.strengthArmorPenetration); }
     public static double getAgilityMovementSpeedBonus(int level) { return normalized(level) * configured(AscendConfig.COMMON.agilityMovementSpeedBonus); }
+    public static double getAgilityMovementSpeedBonus(Player player, int level) {
+        return PassiveAgilityApi.getNormalizedAgility(player, level) * configured(AscendConfig.COMMON.agilityMovementSpeedBonus);
+    }
     public static int getMindManaBonus(int level) { return (int) Math.floor(normalized(level) * configured(AscendConfig.COMMON.mindMaxManaBonus)); }
     public static double getMindManaRegenBonus(int level) { return normalized(level) * configured(AscendConfig.COMMON.mindManaRegenBonus); }
     public static double getIntelligenceSpellPowerBonus(int level) { return normalized(level) * configured(AscendConfig.COMMON.intelligenceSpellPowerBonus); }