feat: use latest MCPB schema for BUILD manifest validation

Update manifest type usage in config and packaging to strictly enforce
the latest schema version (0.3) instead of accepting any version.

Changes:
- src/shared/config.ts: Use McpbManifestLatest instead of McpbManifest
- src/types.ts: Add McpbManifestLatest type export
- test/config.test.ts: Update tests to use McpbManifestLatest

This ensures BUILD manifests are validated against the latest schema
only during packaging, preventing use of older schema versions.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/shared/config.ts

@@ -1,6 +1,6 @@
 import type {
   Logger,
-  McpbManifest,
+  McpbManifestLatest,
   McpbUserConfigValues,
   McpServerConfig,
 } from "../types.js";
@@ -85,7 +85,7 @@ export function replaceVariables(
 }
 
 interface GetMcpConfigForManifestOptions {
-  manifest: McpbManifest;
+  manifest: McpbManifestLatest;
   extensionPath: string;
   systemDirs: Record<string, string>;
   userConfig: McpbUserConfigValues;
@@ -179,7 +179,7 @@ export async function getMcpConfigForManifest(
 }
 
 interface HasRequiredConfigMissingOptions {
-  manifest: McpbManifest;
+  manifest: McpbManifestLatest;
   userConfig?: McpbUserConfigValues;
 }
 

src/types.ts

@@ -15,6 +15,7 @@ import type {
   McpbUserConfigValuesSchema,
   McpServerConfigSchema,
 } from "./schemas/latest.js";
+import type { McpbManifestSchema as McpbManifestSchemaAny } from "./schemas/any.js";
 
 export type McpServerConfig = z.infer<typeof McpServerConfigSchema>;
 
@@ -46,7 +47,22 @@ export type McpbUserConfigurationOption = z.infer<
 
 export type McpbUserConfigValues = z.infer<typeof McpbUserConfigValuesSchema>;
 
-export type McpbManifest = z.infer<typeof McpbManifestSchema>;
+/**
+ * McpbManifest type that accepts any supported manifest version (0.1, 0.2, 0.3).
+ * This is the default manifest type that should be used for maximum compatibility.
+ */
+export type McpbManifest = z.infer<typeof McpbManifestSchemaAny>;
+
+/**
+ * @deprecated Use McpbManifest instead. This alias is kept for backward compatibility.
+ */
+export type McpbManifestAny = z.infer<typeof McpbManifestSchemaAny>;
+
+/**
+ * McpbManifest type for the latest manifest version only (0.3).
+ * Use this when you specifically need the latest version.
+ */
+export type McpbManifestLatest = z.infer<typeof McpbManifestSchema>;
 
 /**
  * Information about a MCPB package signature

test/config.test.ts

@@ -3,7 +3,7 @@ import {
   hasRequiredConfigMissing,
   replaceVariables,
 } from "../src/shared/config";
-import type { Logger, McpbManifest } from "../src/types";
+import type { Logger, McpbManifestLatest } from "../src/types";
 
 describe("replaceVariables", () => {
   it("should replace variables in strings", () => {
@@ -89,7 +89,7 @@ describe("getMcpConfigForManifest", () => {
     data: "/data",
   };
 
-  const baseManifest: McpbManifest = {
+  const baseManifest: McpbManifestLatest = {
     manifest_version: "0.3",
     name: "test-extension",
     version: "1.0.0",
@@ -114,7 +114,7 @@ describe("getMcpConfigForManifest", () => {
     const manifest = {
       ...baseManifest,
       server: undefined,
-    } as unknown as McpbManifest;
+    } as unknown as McpbManifestLatest;
 
     const result = await getMcpConfigForManifest({
       manifest,
@@ -129,7 +129,7 @@ describe("getMcpConfigForManifest", () => {
   });
 
   it("should return undefined when required config is missing", async () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         apiKey: {
@@ -171,7 +171,7 @@ describe("getMcpConfigForManifest", () => {
   });
 
   it("should apply platform overrides", async () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       server: {
         type: "node",
@@ -203,7 +203,7 @@ describe("getMcpConfigForManifest", () => {
   });
 
   it("should handle user config variable replacement with defaults", async () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         port: {
@@ -236,7 +236,7 @@ describe("getMcpConfigForManifest", () => {
   });
 
   it("should handle user config variable replacement with user values", async () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         paths: {
@@ -270,7 +270,7 @@ describe("getMcpConfigForManifest", () => {
   });
 
   it("should convert boolean user config values to strings", async () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         verbose: {
@@ -304,7 +304,7 @@ describe("getMcpConfigForManifest", () => {
 });
 
 describe("hasRequiredConfigMissing", () => {
-  const baseManifest: McpbManifest = {
+  const baseManifest: McpbManifestLatest = {
     manifest_version: "0.3",
     name: "test-extension",
     version: "1.0.0",
@@ -329,7 +329,7 @@ describe("hasRequiredConfigMissing", () => {
   });
 
   it("should return false when no config fields are required", () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         port: {
@@ -349,7 +349,7 @@ describe("hasRequiredConfigMissing", () => {
   });
 
   it("should return false when required config is provided", () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         apiKey: {
@@ -369,7 +369,7 @@ describe("hasRequiredConfigMissing", () => {
   });
 
   it("should return true when required config is undefined", () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         apiKey: {
@@ -389,7 +389,7 @@ describe("hasRequiredConfigMissing", () => {
   });
 
   it("should return true when required config is empty string", () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         apiKey: {
@@ -409,7 +409,7 @@ describe("hasRequiredConfigMissing", () => {
   });
 
   it("should return true when required config is array with invalid values", () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         paths: {
@@ -430,7 +430,7 @@ describe("hasRequiredConfigMissing", () => {
   });
 
   it("should return true when required config is empty array", () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         paths: {
@@ -459,7 +459,7 @@ describe("hasRequiredConfigMissing", () => {
   });
 
   it("should handle multiple required config fields", () => {
-    const manifest: McpbManifest = {
+    const manifest: McpbManifestLatest = {
       ...baseManifest,
       user_config: {
         apiKey: {