From 7cc4f0f6897020b984af54bd36ab94a9cfeaa65e Mon Sep 17 00:00:00 2001
From: Shaun Arman <Shaun.Arman@motorolasolutions.com>
Date: Mon, 1 Jun 2026 13:19:34 -0500
Subject: [PATCH] fix(mcp): treat missing resources/list as non-fatal for
 servers that don't implement it

---
 src-tauri/src/mcp/discovery.rs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src-tauri/src/mcp/discovery.rs b/src-tauri/src/mcp/discovery.rs
index e1add604..1eb68760 100644
--- a/src-tauri/src/mcp/discovery.rs
+++ b/src-tauri/src/mcp/discovery.rs
@@ -103,9 +103,16 @@ async fn discover_server_inner(
         other => return Err(format!("Unknown transport type: {other}")),
     };
 
-    // List tools and resources
+    // List tools and resources (resources are optional — not all servers implement them)
     let tools = list_tools(&conn, &server.id, &server.name).await?;
-    let resources = list_resources(&conn, &server.id).await?;
+    let resources = match list_resources(&conn, &server.id).await {
+        Ok(r) => r,
+        Err(e) if e.contains("-32601") || e.contains("Method not found") => {
+            info!(server_id = %server.id, "Server does not support resources/list (optional)");
+            vec![]
+        }
+        Err(e) => return Err(e),
+    };
 
     // Persist to DB
     {