ci: verify schema is correct on release PRs

.github/workflows/pre-release.yml

@@ -0,0 +1,27 @@
+name: Pre-release
+
+permissions: read-all
+
+on:
+  push:
+    branches:
+      - release-please-*
+
+jobs:
+  pre-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          fetch-depth: 2
+
+      - name: Install MCP Publisher
+        run: |
+          export TAG=$(curl -sL https://api.github.com/repos/modelcontextprotocol/registry/releases/latest | jq -r ".tag_name")
+          export VERSION="${TAG#v}"
+          export OS=$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')
+          curl -L "https://github.com/modelcontextprotocol/registry/releases/download/${TAG}/mcp-publisher_${VERSION}_${OS}.tar.gz" | tar xz mcp-publisher
+
+      - name: Verify server.json
+        run: npm run verify-server-json-version

.github/workflows/publish-to-npm-on-tag.yml

@@ -79,9 +79,10 @@ jobs:
 
       - name: Install MCP Publisher
         run: |
-          export VERSION="1.2.1"
+          export TAG=$(curl -sL https://api.github.com/repos/modelcontextprotocol/registry/releases/latest | jq -r ".tag_name")
+          export VERSION="${TAG#v}"
           export OS=$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')
-          curl -L "https://github.com/modelcontextprotocol/registry/releases/download/v${VERSION}/mcp-publisher_${VERSION}_${OS}.tar.gz" | tar xz mcp-publisher
+          curl -L "https://github.com/modelcontextprotocol/registry/releases/download/${TAG}/mcp-publisher_${VERSION}_${OS}.tar.gz" | tar xz mcp-publisher
 
       - name: Login to MCP Registry
         run: ./mcp-publisher login github-oidc

package.json

@@ -19,7 +19,8 @@
     "test:only": "npm run build && node --require ./build/tests/setup.js --no-warnings=ExperimentalWarning --test-reporter spec --test-force-exit --test --test-only \"build/tests/**/*.test.js\"",
     "test:only:no-build": "node --require ./build/tests/setup.js --no-warnings=ExperimentalWarning --test-reporter spec --test-force-exit --test --test-only \"build/tests/**/*.test.js\"",
     "test:update-snapshots": "npm run build && node --require ./build/tests/setup.js --no-warnings=ExperimentalWarning --test-force-exit --test --test-update-snapshots \"build/tests/**/*.test.js\"",
-    "prepare": "node --experimental-strip-types scripts/prepare.ts"
+    "prepare": "node --experimental-strip-types scripts/prepare.ts",
+    "verify-server-json-version": "node --experimental-strip-types scripts/verify-server-json-version.ts"
   },
   "files": [
     "build/src",

scripts/verify-server-json-version.ts

@@ -0,0 +1,36 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import {execSync} from 'node:child_process';
+import fs from 'node:fs';
+
+const serverJsonFilePath = './server.json';
+const serverJson = JSON.parse(fs.readFileSync(serverJsonFilePath, 'utf-8'));
+fs.unlinkSync(serverJsonFilePath);
+
+// Create the new server.json
+execSync('./mcp-publisher init');
+
+const newServerJson = JSON.parse(fs.readFileSync(serverJsonFilePath, 'utf-8'));
+
+const propertyToVerify = ['$schema'];
+const diffProps = [];
+
+for (const prop of propertyToVerify) {
+  if (serverJson[prop] !== newServerJson[prop]) {
+    diffProps.push(prop);
+  }
+}
+
+fs.writeFileSync('./server.json', JSON.stringify(serverJson, null, 2));
+
+if (diffProps.length) {
+  throw new Error(
+    `The following props did not match the latest init value:\n${diffProps.map(
+      prop => `- "${prop}": "${newServerJson[prop]}"`,
+    )}`,
+  );
+}