Merge pull request #14 from jaseci-labs/code-update

fix

Author: SahanUday

data/mcp_servers.cl.jac

@@ -8,7 +8,7 @@ def:pub getMcpServers -> Any {
             "namespace": "jaseci.org",
             "transport": "http",
             "description": "Official Jac programming language MCP server. Validate, format, and convert Jac code with access to full language docs, grammar, and examples.",
-            "url": "http://127.0.0.1:3002/mcp/",
+            "url": "builtin://jac-mcp",
             "auth": "none",
             "authRequired": False
         },

pages/testmcp.jac

@@ -31,7 +31,7 @@ cl {
                 urlError = "Server URL is required";
                 return False;
             }
-            if not (url.startsWith("http://") or url.startsWith("https://")) {
+            if not (url.startsWith("http://") or url.startsWith("https://") or url.startsWith("builtin://")) {
                 urlError = "URL must start with http:// or https://";
                 return False;
             }
@@ -124,7 +124,7 @@ cl {
                                 className="w-full bg-background border border-input rounded-lg px-4 py-2.5 text-sm text-foreground placeholder-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring/50 focus:border-ring transition-colors"
                             />
                             {urlError and <p className="text-xs text-destructive mt-1">{urlError}</p>}
-                            {(url.includes("localhost") or url.includes("127.0.0.1")) and not url.includes("127.0.0.1:3002") and window.location.hostname != "localhost" and window.location.hostname != "127.0.0.1" and
+                            {(url.includes("localhost") or url.includes("127.0.0.1")) and not url.startsWith("builtin://") and window.location.hostname != "localhost" and window.location.hostname != "127.0.0.1" and
                                 <div className="p-3 bg-warning/10 border border-warning/20 rounded-lg mt-1">
                                     <p className="text-xs text-warning font-medium">⚠ Local server detected</p>
                                     <p className="text-xs text-muted-foreground mt-1">

services/impl/mcp_proxy.impl.jac

@@ -6,6 +6,11 @@ impl mcp_proxy(
     headers: dict = {},
     transport: str = "streamable-http"
 ) -> dict {
+    # Resolve sentinel value to avoid WAF blocking internal IPs in request body
+    if url == "builtin://jac-mcp" {
+        url = "http://127.0.0.1:3002/mcp/";
+    }
+
     request_headers = {
         "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/120 Safari/537.36",
         "Content-Type": "application/json",