diff --git a/dotnet/src/SdkProtocolVersion.cs b/dotnet/src/SdkProtocolVersion.cs
index 101141f4..cbf0f7d6 100644
--- a/dotnet/src/SdkProtocolVersion.cs
+++ b/dotnet/src/SdkProtocolVersion.cs
@@ -1,4 +1,4 @@
-// Code generated by generate-protocol-version.ts. DO NOT EDIT.
+// Code generated by update-protocol-version.ts. DO NOT EDIT.
 
 namespace GitHub.Copilot.SDK;
 
diff --git a/go/sdk_protocol_version.go b/go/sdk_protocol_version.go
index cd53eecb..34b416d3 100644
--- a/go/sdk_protocol_version.go
+++ b/go/sdk_protocol_version.go
@@ -1,4 +1,4 @@
-// Code generated by generate-protocol-version.ts. DO NOT EDIT.
+// Code generated by update-protocol-version.ts. DO NOT EDIT.
 
 package copilot
 
diff --git a/nodejs/package.json b/nodejs/package.json
index cb716942..82174ed6 100644
--- a/nodejs/package.json
+++ b/nodejs/package.json
@@ -26,7 +26,7 @@
     "lint:fix": "eslint --fix \"src/**/*.ts\" \"test/**/*.ts\"",
     "typecheck": "tsc --noEmit",
     "generate:session-types": "tsx scripts/generate-session-types.ts",
-    "update:protocol-version": "tsx scripts/generate-protocol-version.ts",
+    "update:protocol-version": "tsx scripts/update-protocol-version.ts",
     "prepublishOnly": "npm run build",
     "package": "npm run clean && npm run build && node scripts/set-version.js && npm pack && npm version 0.1.0 --no-git-tag-version --allow-same-version"
   },
diff --git a/nodejs/scripts/update-protocol-version.ts b/nodejs/scripts/update-protocol-version.ts
index d103c3b0..d0e3ecc6 100644
--- a/nodejs/scripts/update-protocol-version.ts
+++ b/nodejs/scripts/update-protocol-version.ts
@@ -6,6 +6,7 @@
  * Generates SDK protocol version constants for all SDK languages.
  *
  * Reads from sdk-protocol-version.json and generates:
+ * - nodejs/src/sdkProtocolVersion.ts
  * - go/sdk_protocol_version.go
  * - python/copilot/sdk_protocol_version.py
  * - dotnet/src/SdkProtocolVersion.cs
@@ -26,8 +27,32 @@ const version = versionFile.version;
 
 console.log(`Generating SDK protocol version constants for version ${version}...`);
 
+// Generate TypeScript
+const tsCode = `/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *--------------------------------------------------------------------------------------------*/
+
+// Code generated by update-protocol-version.ts. DO NOT EDIT.
+
+/**
+ * The SDK protocol version.
+ * This must match the version expected by the copilot-agent-runtime server.
+ */
+export const SDK_PROTOCOL_VERSION = ${version};
+
+/**
+ * Gets the SDK protocol version.
+ * @returns The protocol version number
+ */
+export function getSdkProtocolVersion(): number {
+    return SDK_PROTOCOL_VERSION;
+}
+`;
+fs.writeFileSync(path.join(rootDir, "nodejs", "src", "sdkProtocolVersion.ts"), tsCode);
+console.log("  ✓ nodejs/src/sdkProtocolVersion.ts");
+
 // Generate Go
-const goCode = `// Code generated by generate-protocol-version.ts. DO NOT EDIT.
+const goCode = `// Code generated by update-protocol-version.ts. DO NOT EDIT.
 
 package copilot
 
@@ -44,7 +69,7 @@ fs.writeFileSync(path.join(rootDir, "go", "sdk_protocol_version.go"), goCode);
 console.log("  ✓ go/sdk_protocol_version.go");
 
 // Generate Python
-const pythonCode = `# Code generated by generate-protocol-version.ts. DO NOT EDIT.
+const pythonCode = `# Code generated by update-protocol-version.ts. DO NOT EDIT.
 
 """
 SDK Protocol Version for the Copilot SDK.
@@ -68,7 +93,7 @@ fs.writeFileSync(path.join(rootDir, "python", "copilot", "sdk_protocol_version.p
 console.log("  ✓ python/copilot/sdk_protocol_version.py");
 
 // Generate C#
-const csharpCode = `// Code generated by generate-protocol-version.ts. DO NOT EDIT.
+const csharpCode = `// Code generated by update-protocol-version.ts. DO NOT EDIT.
 
 namespace GitHub.Copilot.SDK;
 
diff --git a/nodejs/src/sdkProtocolVersion.ts b/nodejs/src/sdkProtocolVersion.ts
index 5fad4e6d..a6fe1c20 100644
--- a/nodejs/src/sdkProtocolVersion.ts
+++ b/nodejs/src/sdkProtocolVersion.ts
@@ -2,12 +2,18 @@
  *  Copyright (c) Microsoft Corporation. All rights reserved.
  *--------------------------------------------------------------------------------------------*/
 
-import sdkProtocolVersion from "../../sdk-protocol-version.json";
+// Code generated by update-protocol-version.ts. DO NOT EDIT.
 
 /**
- * Gets the SDK protocol version from sdk-protocol-version.json.
+ * The SDK protocol version.
+ * This must match the version expected by the copilot-agent-runtime server.
+ */
+export const SDK_PROTOCOL_VERSION = 1;
+
+/**
+ * Gets the SDK protocol version.
  * @returns The protocol version number
  */
 export function getSdkProtocolVersion(): number {
-    return sdkProtocolVersion.version;
+    return SDK_PROTOCOL_VERSION;
 }
diff --git a/python/copilot/sdk_protocol_version.py b/python/copilot/sdk_protocol_version.py
index ed9a2887..0410dd91 100644
--- a/python/copilot/sdk_protocol_version.py
+++ b/python/copilot/sdk_protocol_version.py
@@ -1,4 +1,4 @@
-# Code generated by generate-protocol-version.ts. DO NOT EDIT.
+# Code generated by update-protocol-version.ts. DO NOT EDIT.
 
 """
 SDK Protocol Version for the Copilot SDK.