Load and use MCP server prompts as slash commands in the CLI (#4828)

Co-authored-by: harold <haroldmciver@google.com>
Co-authored-by: N. Taylor Mullen <ntaylormullen@google.com>

packages/core/src/prompts/mcp-prompts.ts

@@ -0,0 +1,19 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { Config } from '../config/config.js';
+import { DiscoveredMCPPrompt } from '../tools/mcp-client.js';
+
+export function getMCPServerPrompts(
+  config: Config,
+  serverName: string,
+): DiscoveredMCPPrompt[] {
+  const promptRegistry = config.getPromptRegistry();
+  if (!promptRegistry) {
+    return [];
+  }
+  return promptRegistry.getPromptsByServer(serverName);
+}