diff --git a/packages/scripts/src/buildAssets/consumableProvisionIcons.ts b/packages/scripts/src/buildAssets/consumableProvisionIcons.ts
index d933ae28e..a9031bb24 100644
--- a/packages/scripts/src/buildAssets/consumableProvisionIcons.ts
+++ b/packages/scripts/src/buildAssets/consumableProvisionIcons.ts
@@ -14,6 +14,42 @@ interface Mappings {
 
 const listItemsPattern = /<items path="(.+)\.xml"\/>/g;
 
+async function extractPackedIcon(
+  texture: sharp.Sharp,
+  sizes: number[],
+  context: string,
+) {
+  const [left, top, width, height] = sizes;
+  const bounds = [left, top, width, height];
+
+  if (!bounds.every(Number.isInteger)) {
+    throw new Error(
+      `Invalid RIFF sprite bounds for ${context}: ${bounds.join(" ")}`,
+    );
+  }
+
+  const metadata = await texture.metadata();
+
+  if (metadata.width === undefined || metadata.height === undefined) {
+    throw new Error(`Failed to read image dimensions for ${context}`);
+  }
+
+  if (
+    left < 0 ||
+    top < 0 ||
+    width <= 0 ||
+    height <= 0 ||
+    left + width > metadata.width ||
+    top + height > metadata.height
+  ) {
+    throw new Error(
+      `Out-of-bounds RIFF sprite for ${context}: ${bounds.join(" ")} in ${metadata.width}x${metadata.height}`,
+    );
+  }
+
+  return await texture.clone().extract({ left, top, width, height }).toBuffer();
+}
+
 export async function consumableProvisionIcons() {
   console.log("Building consumable and provision icons...");
 
@@ -64,28 +100,13 @@ export async function consumableProvisionIcons() {
         let content: Buffer;
 
         if (sizes) {
-          try {
-            content = await consumablesTexture
-              .clone()
-              .extract({
-                left: sizes[0],
-                top: sizes[1],
-                width: sizes[2],
-                height: sizes[3],
-              })
-              .toBuffer();
-          } catch {
-            console.warn(
-              `Failed to extract consumable ${consumable.icon} from RIFF data; falling back to trim...`,
-            );
-            content = await consumablesTexture
-              .trim({ threshold: 100 })
-              .toBuffer();
-          }
+          content = await extractPackedIcon(
+            consumablesTexture,
+            sizes,
+            `consumable ${consumable.icon}`,
+          );
         } else {
-          content = await consumablesTexture
-            .trim({ threshold: 100 })
-            .toBuffer();
+          content = await consumablesTexture.trim({ threshold: 80 }).toBuffer();
         }
 
         await uploader.add({
@@ -156,26 +177,13 @@ export async function consumableProvisionIcons() {
         let content: Buffer;
 
         if (sizes) {
-          try {
-            content = await provisionsTexture
-              .clone()
-              .extract({
-                left: sizes[0],
-                top: sizes[1],
-                width: sizes[2],
-                height: sizes[3],
-              })
-              .toBuffer();
-          } catch {
-            console.warn(
-              `Failed to extract provision ${provision.icon} from RIFF data; falling back to trim...`,
-            );
-            content = await provisionsTexture
-              .trim({ threshold: 100 })
-              .toBuffer();
-          }
+          content = await extractPackedIcon(
+            provisionsTexture,
+            sizes,
+            `provision ${provision.icon}`,
+          );
         } else {
-          content = await provisionsTexture.trim({ threshold: 100 }).toBuffer();
+          content = await provisionsTexture.trim({ threshold: 80 }).toBuffer();
         }
 
         await uploader.add({