mcp-tool-update-attempting-to-re-register-a-tool-with-an-existing--f858de9e

THEN Allow tool overwriting by removing the duplicate name check in mcp.tool(), or add a removeTool() method to delete old tools before re-registration. This enables tools to be updated at runtime.

// Remove the check in server.ts:
// if (this._registeredTools[name]) {
//   throw new Error(`Tool ${name} is already registered`);
// }