Remove duplicate CLI tools module, remove the global tool registry (#89)

1 files changed, 72 insertions, 0 deletions

diff --git a/packages/server/src/tools/tool-registry.ts b/packages/server/src/tools/tool-registry.ts
new file mode 100644
index 00000000..387a7d29
--- /dev/null
+++ b/packages/server/src/tools/tool-registry.ts
@@ -0,0 +1,72 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { ToolListUnion, FunctionDeclaration } from '@google/genai';
+import { Tool } from './tools.js';
+
+export class ToolRegistry {
+  private tools: Map<string, Tool> = new Map();
+
+  /**
+   * Registers a tool definition.
+   * @param tool - The tool object containing schema and execution logic.
+   */
+  registerTool(tool: Tool): void {
+    if (this.tools.has(tool.name)) {
+      // Decide on behavior: throw error, log warning, or allow overwrite
+      console.warn(
+        `Tool with name "${tool.name}" is already registered. Overwriting.`,
+      );
+    }
+    this.tools.set(tool.name, tool);
+  }
+
+  /**
+   * Retrieves the list of tool schemas (FunctionDeclaration array).
+   * Extracts the declarations from the ToolListUnion structure.
+   * @returns An array of FunctionDeclarations.
+   */
+  getFunctionDeclarations(): FunctionDeclaration[] {
+    const declarations: FunctionDeclaration[] = [];
+    this.tools.forEach((tool) => {
+      declarations.push(tool.schema);
+    });
+    return declarations;
+  }
+
+  /**
+   * Deprecated/Internal? Retrieves schemas in the ToolListUnion format.
+   * Kept for reference, prefer getFunctionDeclarations.
+   */
+  getToolSchemas(): ToolListUnion {
+    const declarations = this.getFunctionDeclarations();
+    if (declarations.length === 0) {
+      return [];
+    }
+    return [{ functionDeclarations: declarations }];
+  }
+
+  /**
+   * Returns an array of all registered tool instances.
+   */
+  getAllTools(): Tool[] {
+    return Array.from(this.tools.values());
+  }
+
+  /**
+   * Optional: Get a list of registered tool names.
+   */
+  listAvailableTools(): string[] {
+    return Array.from(this.tools.keys());
+  }
+
+  /**
+   * Get the definition of a specific tool.
+   */
+  getTool(name: string): Tool | undefined {
+    return this.tools.get(name);
+  }
+}