diff --git a/mcp/servers/egc-guardian/package.json b/mcp/servers/egc-guardian/package.json
index c2dee66f..21d8926a 100644
--- a/mcp/servers/egc-guardian/package.json
+++ b/mcp/servers/egc-guardian/package.json
@@ -5,7 +5,7 @@
   "description": "EGC Guardian MCP Server: validation, context reduction, and task orchestration",
   "main": "build/index.js",
   "scripts": {
-    "build": "node ../../../scripts/build-skill-index.js && tsc && chmod +x build/index.js",
+    "build": "node ../../../scripts/build-skill-index.js && tsc && node -e \"require('node:fs').chmodSync('build/index.js', 0o755)\"",
     "start": "node build/index.js"
   },
   "dependencies": {
diff --git a/mcp/servers/egc-memory/package.json b/mcp/servers/egc-memory/package.json
index 8084f86a..b4407aac 100644
--- a/mcp/servers/egc-memory/package.json
+++ b/mcp/servers/egc-memory/package.json
@@ -4,7 +4,7 @@
   "description": "EGC Memory MCP Server: persistent cross-session project state and decision history",
   "main": "build/index.js",
   "scripts": {
-    "build": "tsc && chmod +x build/index.js",
+    "build": "tsc && node -e \"require('node:fs').chmodSync('build/index.js', 0o755)\"",
     "start": "node build/index.js"
   },
   "dependencies": {