diff --git a/src/tools/common.ts b/src/tools/common.ts
index b4a72a4..f2e29b8 100644
--- a/src/tools/common.ts
+++ b/src/tools/common.ts
@@ -7,6 +7,7 @@ import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 import { OpenProjectError } from "../client/errors";
 
 export interface McpToolResponse {
+  [key: string]: unknown;
   content: Array<{ type: "text"; text: string }>;
   isError?: boolean;
 }
diff --git a/src/tools/work-packages.ts b/src/tools/work-packages.ts
index a9fa2f6..9d8f3ed 100644
--- a/src/tools/work-packages.ts
+++ b/src/tools/work-packages.ts
@@ -169,7 +169,6 @@ export const workPackageTools = [listWorkPackagesTool, getWorkPackageTool];
  * Registers all work package tools with an McpServer instance.
  */
 export function registerWorkPackageTools(server: McpServer): void {
-  for (const tool of workPackageTools) {
-    registerTool(server, tool);
-  }
+  registerTool(server, listWorkPackagesTool);
+  registerTool(server, getWorkPackageTool);
 }