From 70cfb0f0d458068af7721f8428f0531021143280 Mon Sep 17 00:00:00 2001
From: Justin Spahr-Summers <justin@anthropic.com>
Date: Tue, 12 Nov 2024 12:17:35 +0000
Subject: [PATCH] Unify error text

---
 src/client/index.ts | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/client/index.ts b/src/client/index.ts
index dd5d2ced..e0df322b 100644
--- a/src/client/index.ts
+++ b/src/client/index.ts
@@ -165,7 +165,7 @@ export class Client<
       case "logging/setLevel":
         if (!this._serverCapabilities?.logging) {
           throw new Error(
-            "Server does not support logging (required for logging/setLevel)",
+            `Server does not support logging (required for ${method})`,
           );
         }
         break;
@@ -194,7 +194,9 @@ export class Client<
           method === "resources/subscribe" &&
           !this._serverCapabilities.resources.subscribe
         ) {
-          throw new Error("Server does not support resource subscriptions");
+          throw new Error(
+            `Server does not support resource subscriptions (required for ${method})`,
+          );
         }
 
         break;
@@ -211,7 +213,7 @@ export class Client<
       case "completion/complete":
         if (!this._serverCapabilities?.prompts) {
           throw new Error(
-            "Server does not support prompts (required for completion/complete)",
+            `Server does not support prompts (required for ${method})`,
           );
         }
         break;
@@ -233,7 +235,7 @@ export class Client<
       case "notifications/roots/list_changed":
         if (!this._capabilities.roots?.listChanged) {
           throw new Error(
-            "Client does not support roots list changed notifications",
+            `Client does not support roots list changed notifications (required for ${method})`,
           );
         }
         break;
@@ -252,13 +254,17 @@ export class Client<
     switch (method) {
       case "sampling/createMessage":
         if (!this._capabilities.sampling) {
-          throw new Error("Client does not support sampling capability");
+          throw new Error(
+            `Client does not support sampling capability (required for ${method})`,
+          );
         }
         break;
 
       case "roots/list":
         if (!this._capabilities.roots) {
-          throw new Error("Client does not support roots capability");
+          throw new Error(
+            `Client does not support roots capability (required for ${method})`,
+          );
         }
         break;