build: run the privacy check in verify and catch Windows paths

CHANGELOG.md

@@ -7,3 +7,4 @@ This project follows Semantic Versioning. Release notes describe protocol suppor
 - Initial TypeScript MCP server template.
 - HTTP: a request with a malformed `Host` header or request target no longer crashes the process.
 - HTTP: the MCP endpoint validates `Host` and `Origin` headers against `MCP_ALLOWED_HOSTS` and `MCP_ALLOWED_ORIGINS` (localhost by default) to block DNS rebinding.
+- Build: `npm run verify` (and therefore CI) runs the privacy check, which now also catches unescaped Windows profile paths.

package.json

@@ -11,6 +11,7 @@
     "build": "tsc -p tsconfig.build.json",
     "check": "tsc --noEmit",
     "check:package": "node scripts/check-generated.mjs",
+    "check:privacy": "node scripts/privacy-check.mjs",
     "clean": "node scripts/clean.mjs",
     "dev": "tsx watch src/cli.ts",
     "format": "prettier --check .",
@@ -20,7 +21,7 @@
     "test": "vitest run",
     "test:coverage": "vitest run --coverage",
     "test:watch": "vitest",
-    "verify": "npm run format && npm run lint && npm run check && npm run test:coverage && npm run build && npm run check:package"
+    "verify": "npm run check:privacy && npm run format && npm run lint && npm run check && npm run test:coverage && npm run build && npm run check:package"
   },
   "dependencies": {
     "@modelcontextprotocol/node": "2.0.0",

scripts/privacy-check.mjs

@@ -2,7 +2,14 @@ import { execFileSync } from "node:child_process";
 import { readFile } from "node:fs/promises";
 import process from "node:process";
 
-const patterns = ["C:\\\\Users\\\\", "/Users/", "/home/", "BEGIN PRIVATE KEY", "api_key="];
+// Match Windows profile paths written with single (C:\Users\) or JSON-escaped (C:\\Users\\) separators.
+const patterns = [
+  /[A-Za-z]:\\{1,2}Users\\{1,2}/,
+  /\/Users\//,
+  /\/home\//,
+  /BEGIN PRIVATE KEY/,
+  /api_key=/,
+];
 const tracked = execFileSync("git", ["ls-files", "-z"], { encoding: "utf8" })
   .split("\0")
   .filter(Boolean);
@@ -11,7 +18,7 @@ for (const pattern of patterns) {
   for (const path of tracked) {
     if (path.endsWith("privacy-check.mjs")) continue;
     try {
-      if ((await readFile(path, "utf8")).includes(pattern)) matches.push(path);
+      if (pattern.test(await readFile(path, "utf8"))) matches.push(path);
     } catch {
       // Binary and inaccessible files do not participate in the text scan.
     }