diff --git a/src/features/chat/application/composer/slash-commands.ts b/src/features/chat/application/composer/slash-commands.ts
index 4e17811a..30087cc8 100644
--- a/src/features/chat/application/composer/slash-commands.ts
+++ b/src/features/chat/application/composer/slash-commands.ts
@@ -141,7 +141,7 @@ export const SLASH_COMMANDS = [
     usage: "/tools",
     argsKind: "none",
     surface: "diagnostic",
-    detail: "Show Codex plugins, tool providers, and skills reported by App Server.",
+    detail: "Show Codex plugins, MCP servers, and skills reported by App Server.",
   },
   {
     command: "/model",
diff --git a/src/features/chat/application/conversation/composition.ts b/src/features/chat/application/conversation/composition.ts
index e38df134..8773620f 100644
--- a/src/features/chat/application/conversation/composition.ts
+++ b/src/features/chat/application/conversation/composition.ts
@@ -29,7 +29,7 @@ export interface ConversationTurnActionsContext {
     modelStatusLines: () => string[];
     effortStatusLines: () => string[];
     statusSummaryLines: () => string[];
-    toolInventoryDetails: () => MessageStreamNoticeSection[];
+    toolInventoryDetails: () => MessageStreamNoticeSection[] | Promise<MessageStreamNoticeSection[]>;
   };
   thread: {
     ensureRestoredThreadLoaded: () => Promise<boolean>;
diff --git a/src/features/chat/application/conversation/slash-command-execution.ts b/src/features/chat/application/conversation/slash-command-execution.ts
index 4b722ab8..0d9f183a 100644
--- a/src/features/chat/application/conversation/slash-command-execution.ts
+++ b/src/features/chat/application/conversation/slash-command-execution.ts
@@ -53,7 +53,7 @@ export interface SlashCommandExecutionPorts {
   };
   statusSummaryLines: () => string[];
   connectionDiagnosticDetails: () => MessageStreamNoticeSection[];
-  toolInventoryDetails: () => MessageStreamNoticeSection[];
+  toolInventoryDetails: () => MessageStreamNoticeSection[] | Promise<MessageStreamNoticeSection[]>;
   modelStatusLines: () => string[];
   effortStatusLines: () => string[];
 }
@@ -186,7 +186,7 @@ export async function executeSlashCommand(
       context.addStructuredSystemMessage("Connection diagnostics", context.connectionDiagnosticDetails());
       return;
     case "tools":
-      context.addStructuredSystemMessage("Codex capabilities", context.toolInventoryDetails());
+      context.addStructuredSystemMessage("Codex capabilities", await context.toolInventoryDetails());
       return;
     case "model": {
       const requested = parseModelOverride(args);
diff --git a/src/features/chat/host/session-graph.ts b/src/features/chat/host/session-graph.ts
index a8789199..566f033f 100644
--- a/src/features/chat/host/session-graph.ts
+++ b/src/features/chat/host/session-graph.ts
@@ -177,6 +177,7 @@ export function createChatPanelSessionGraph(host: ChatPanelSessionGraphHost): Ch
       threadFoundation.invalidateThreadWork();
     },
     runtimeProjection: runtime.projection,
+    refreshDiagnostics: () => connectionController.refreshDiagnostics(),
     refreshLiveState,
     notifyActiveThreadIdentityChanged,
   });
diff --git a/src/features/chat/host/turn-bundle.ts b/src/features/chat/host/turn-bundle.ts
index 98f64ab1..28c372b8 100644
--- a/src/features/chat/host/turn-bundle.ts
+++ b/src/features/chat/host/turn-bundle.ts
@@ -68,6 +68,7 @@ interface ChatPanelTurnInput {
   autoTitleCoordinator: AutoTitleCoordinator;
   invalidateThreadWork: () => void;
   runtimeProjection: ChatPanelRuntimeProjection;
+  refreshDiagnostics: () => Promise<void>;
   refreshLiveState: () => void;
   notifyActiveThreadIdentityChanged: () => void;
 }
@@ -91,6 +92,7 @@ export function createTurnBundle(host: ChatPanelTurnHost, input: ChatPanelTurnIn
     autoTitleCoordinator,
     invalidateThreadWork,
     runtimeProjection,
+    refreshDiagnostics,
     refreshLiveState,
     notifyActiveThreadIdentityChanged,
   } = input;
@@ -148,7 +150,10 @@ export function createTurnBundle(host: ChatPanelTurnHost, input: ChatPanelTurnIn
         modelStatusLines: runtimeProjection.modelStatusLines,
         effortStatusLines: runtimeProjection.effortStatusLines,
         statusSummaryLines: runtimeProjection.statusSummaryLines,
-        toolInventoryDetails: runtimeProjection.toolInventoryDetails,
+        toolInventoryDetails: async () => {
+          await refreshDiagnostics();
+          return runtimeProjection.toolInventoryDetails();
+        },
       },
       thread: {
         ensureRestoredThreadLoaded: () =>
diff --git a/tests/features/chat/application/conversation/slash-command-execution.test.ts b/tests/features/chat/application/conversation/slash-command-execution.test.ts
index 4bb0f384..ce8117f8 100644
--- a/tests/features/chat/application/conversation/slash-command-execution.test.ts
+++ b/tests/features/chat/application/conversation/slash-command-execution.test.ts
@@ -47,7 +47,7 @@ function context(overrides: Partial<SlashCommandExecutionContext> = {}): SlashCo
     },
     statusSummaryLines: () => ["status"],
     connectionDiagnosticDetails: () => [{ title: "Process", rows: [{ key: "connection", value: "connected" }] }],
-    toolInventoryDetails: vi.fn(() => [{ title: "Tool providers", auditFacts: [{ key: "codex_apps", value: "GitHub" }] }]),
+    toolInventoryDetails: vi.fn(() => [{ title: "MCP servers", auditFacts: [{ key: "codex_apps", value: "GitHub" }] }]),
     modelStatusLines: () => ["model"],
     effortStatusLines: () => ["effort"],
     ...overrides,
@@ -674,13 +674,16 @@ describe("slash commands", () => {
   });
 
   it("shows Codex capabilities", async () => {
-    const ctx = context();
+    const toolInventoryDetails = vi
+      .fn()
+      .mockResolvedValue([{ title: "MCP servers", auditFacts: [{ key: "codex_apps", value: "GitHub" }] }]);
+    const ctx = context({ toolInventoryDetails });
 
     await executeSlashCommand("tools", "", ctx);
 
-    expect(ctx.toolInventoryDetails).toHaveBeenCalledOnce();
+    expect(toolInventoryDetails).toHaveBeenCalledOnce();
     expect(ctx.addStructuredSystemMessage).toHaveBeenCalledWith("Codex capabilities", [
-      { title: "Tool providers", auditFacts: [{ key: "codex_apps", value: "GitHub" }] },
+      { title: "MCP servers", auditFacts: [{ key: "codex_apps", value: "GitHub" }] },
     ]);
   });
 
@@ -703,7 +706,7 @@ describe("slash commands", () => {
   });
 
   it("documents Codex capabilities", () => {
-    expect(slashCommandHelpValue("/tools")).toBe("Show Codex plugins, tool providers, and skills reported by App Server.");
+    expect(slashCommandHelpValue("/tools")).toBe("Show Codex plugins, MCP servers, and skills reported by App Server.");
   });
 });