From 34c156fc6000218590b2ebca94683d0c460c560d Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 4 Jan 2026 00:56:09 +0000
Subject: [PATCH 1/3] Initial plan


From 0a79ac30a66a39252ab28fde0caa3ffded804d04 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 4 Jan 2026 00:59:14 +0000
Subject: [PATCH 2/3] Optimize quantizeToUint8 and quantizeToUint16 with
 single-pass min/max

Co-authored-by: sroussey <127349+sroussey@users.noreply.github.com>
---
 packages/ai/src/task/VectorQuantizeTask.ts | 30 +++++++++++++++++-----
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/packages/ai/src/task/VectorQuantizeTask.ts b/packages/ai/src/task/VectorQuantizeTask.ts
index 4c8ea05c..16139d0a 100644
--- a/packages/ai/src/task/VectorQuantizeTask.ts
+++ b/packages/ai/src/task/VectorQuantizeTask.ts
@@ -187,6 +187,26 @@ export class VectorQuantizeTask extends Task<
     }
   }
 
+  /**
+   * Find min and max values in a single pass for better performance
+   */
+  private findMinMax(values: number[]): { min: number; max: number } {
+    if (values.length === 0) {
+      return { min: 0, max: 0 };
+    }
+    
+    let min = values[0];
+    let max = values[0];
+    
+    for (let i = 1; i < values.length; i++) {
+      const val = values[i];
+      if (val < min) min = val;
+      if (val > max) max = val;
+    }
+    
+    return { min, max };
+  }
+
   private quantizeToInt8(values: number[]): Int8Array {
     // Assume values are in [-1, 1] range after normalization
     // Scale to [-127, 127] to avoid overflow at -128
@@ -194,9 +214,8 @@ export class VectorQuantizeTask extends Task<
   }
 
   private quantizeToUint8(values: number[]): Uint8Array {
-    // Find min/max for scaling
-    const min = Math.min(...values);
-    const max = Math.max(...values);
+    // Find min/max for scaling in a single pass
+    const { min, max } = this.findMinMax(values);
     const range = max - min || 1;
 
     // Scale to [0, 255]
@@ -210,9 +229,8 @@ export class VectorQuantizeTask extends Task<
   }
 
   private quantizeToUint16(values: number[]): Uint16Array {
-    // Find min/max for scaling
-    const min = Math.min(...values);
-    const max = Math.max(...values);
+    // Find min/max for scaling in a single pass
+    const { min, max } = this.findMinMax(values);
     const range = max - min || 1;
 
     // Scale to [0, 65535]

From 406a385059693d484225c51eb617353f5c9920cd Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 4 Jan 2026 01:00:06 +0000
Subject: [PATCH 3/3] Fix edge case: return non-zero range for empty arrays in
 findMinMax

Co-authored-by: sroussey <127349+sroussey@users.noreply.github.com>
---
 packages/ai/src/task/VectorQuantizeTask.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ai/src/task/VectorQuantizeTask.ts b/packages/ai/src/task/VectorQuantizeTask.ts
index 16139d0a..0277468a 100644
--- a/packages/ai/src/task/VectorQuantizeTask.ts
+++ b/packages/ai/src/task/VectorQuantizeTask.ts
@@ -192,7 +192,7 @@ export class VectorQuantizeTask extends Task<
    */
   private findMinMax(values: number[]): { min: number; max: number } {
     if (values.length === 0) {
-      return { min: 0, max: 0 };
+      return { min: 0, max: 1 };
     }
     
     let min = values[0];