Revert "feat: replace manifest_version with $schema field"

This reverts commit 7997e72758.

test/cli.test.ts

@@ -91,7 +91,7 @@ describe("DXT CLI", () => {
       fs.writeFileSync(
         join(tempDir, "manifest.json"),
         JSON.stringify({
-          $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+          manifest_version: "1.0",
           name: "Test Extension",
           version: "1.0.0",
           description: "A test extension",
@@ -188,7 +188,7 @@ describe("DXT CLI", () => {
         fs.writeFileSync(
           join(tempExecDir, "manifest.json"),
           JSON.stringify({
-            $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+            manifest_version: "1.0",
             name: "Test Executable Extension",
             version: "1.0.0",
             description: "A test extension with executable files",

test/config.test.ts

@@ -90,7 +90,7 @@ describe("getMcpConfigForManifest", () => {
   };
 
   const baseManifest: McpbManifest = {
-    $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+    manifest_version: "1.0.0",
     name: "test-extension",
     version: "1.0.0",
     description: "Test extension",
@@ -305,7 +305,7 @@ describe("getMcpConfigForManifest", () => {
 
 describe("hasRequiredConfigMissing", () => {
   const baseManifest: McpbManifest = {
-    $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+    manifest_version: "1.0.0",
     name: "test-extension",
     version: "1.0.0",
     description: "Test extension",

test/init.test.ts

@@ -217,7 +217,7 @@ describe("init functions", () => {
       );
 
       expect(manifest).toEqual({
-        $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+        manifest_version: "0.1",
         name: "test-extension",
         version: "1.0.0",
         description: "Test description",
@@ -303,7 +303,7 @@ describe("init functions", () => {
       );
 
       expect(manifest).toEqual({
-        $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+        manifest_version: "0.1",
         name: "test-extension",
         display_name: "Test Extension",
         version: "1.0.0",

test/invalid-manifest.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+  "manifest_version": "1.0",
   "name": "test-extension",
   "version": "1.0.0",
   "description": "A test DXT extension",

test/schemas.test.ts

@@ -37,7 +37,7 @@ describe("McpbManifestSchema", () => {
 
   it("should validate manifest with all optional fields", () => {
     const fullManifest = {
-      $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+      manifest_version: "1.0",
       name: "full-extension",
       display_name: "Full Featured Extension",
       version: "2.0.0",
@@ -117,7 +117,7 @@ describe("McpbManifestSchema", () => {
 
     serverTypes.forEach((type) => {
       const manifest = {
-        $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+        manifest_version: "1.0",
         name: "test",
         version: "1.0.0",
         description: "Test",
@@ -136,73 +136,4 @@ describe("McpbManifestSchema", () => {
       expect(result.success).toBe(true);
     });
   });
-
-  describe("backward compatibility", () => {
-    it("should accept manifest with dxt_version instead of $schema", () => {
-      const legacyManifest = {
-        dxt_version: "0.1",
-        name: "legacy-extension",
-        version: "1.0.0",
-        description: "Legacy extension",
-        author: { name: "Test Author" },
-        server: {
-          type: "node",
-          entry_point: "server.js",
-          mcp_config: {
-            command: "node",
-            args: ["server.js"],
-          },
-        },
-      };
-
-      const result = McpbManifestSchema.safeParse(legacyManifest);
-      expect(result.success).toBe(true);
-    });
-
-    it("should accept manifest with $schema", () => {
-      const modernManifest = {
-        $schema: "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
-        name: "modern-extension",
-        version: "1.0.0",
-        description: "Modern extension",
-        author: { name: "Test Author" },
-        server: {
-          type: "node",
-          entry_point: "server.js",
-          mcp_config: {
-            command: "node",
-            args: ["server.js"],
-          },
-        },
-      };
-
-      const result = McpbManifestSchema.safeParse(modernManifest);
-      expect(result.success).toBe(true);
-    });
-
-    it("should reject manifest without $schema or dxt_version", () => {
-      const invalidManifest = {
-        name: "invalid-extension",
-        version: "1.0.0",
-        description: "Invalid extension",
-        author: { name: "Test Author" },
-        server: {
-          type: "node",
-          entry_point: "server.js",
-          mcp_config: {
-            command: "node",
-            args: ["server.js"],
-          },
-        },
-      };
-
-      const result = McpbManifestSchema.safeParse(invalidManifest);
-      expect(result.success).toBe(false);
-      if (!result.success) {
-        expect(result.error.issues[0].message).toContain(
-          "Either '$schema' or 'dxt_version' (deprecated) must be provided"
-        );
-      }
-    });
-  });
 });

test/valid-manifest.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-08-26/mcpb.manifest.schema.json",
+  "manifest_version": "1.0",
   "name": "test-extension",
   "display_name": "Test Extension",
   "version": "1.0.0",