RooCodeInc · hannesrudolph · May 12, 2025 · May 12, 2025
@@ -70,6 +70,21 @@ These tools help manage the conversation and task flow:
 
 ## Tool Calling Mechanism
 
+### Handling Complex Tasks
+
+For certain complex operations that require multiple steps, Roo doesn't just figure them out on the fly. Instead, it follows predefined, internal plans to ensure consistency and accuracy.
+
+A prime example is creating a new MCP server, identified internally by `create_mcp_server`. **This identifier does not represent a tool you will see being called.** Rather, when you ask Roo to create a server, it triggers this known, multi-step workflow.
+
+This specific workflow is initiated by Roo using its internal `fetch_instructions` tool (with the task `create_mcp_server`) to retrieve a detailed plan. This plan then guides Roo to make calls to several standard, documented tools in sequence, such as:
+
+*   [`execute_command`](/advanced-usage/available-tools/execute-command) for running setup scripts (e.g., `npx @modelcontextprotocol/create-server`).
+*   [`write_to_file`](/advanced-usage/available-tools/write-to-file) or [`apply_diff`](/advanced-usage/available-tools/apply-diff) for creating or modifying server code and configuration files.
+*   [`ask_followup_question`](/advanced-usage/available-tools/ask-followup-question) to gather necessary information like API keys from you.
+*   Other standard tools as needed for steps like determining file locations or updating configuration entries.
+
+So, while the overall task (like `create_mcp_server`) is complex, it's ultimately accomplished by intelligently orchestrating the standard tools available in your environment. This approach allows Roo to reliably perform complex operations by leveraging the tools documented here.
+
 ### When Tools Are Called
 
 Tools are invoked under specific conditions:

@@ -5,6 +5,13 @@ sidebar_label: Using MCP in Roo Code
 
 # Using MCP in Roo Code
 
+:::info Confused about MCP Servers?
+
+An MCP (Model Context Protocol) server acts as a bridge, giving Roo Code access to a wider range of **tools** and external services like databases, APIs, or custom scripts. It uses a standard communication method, allowing Roo to leverage these external capabilities.
+
+For a deeper dive, check out [What is MCP?](/features/mcp/what-is-mcp).
+:::
+
 Model Context Protocol (MCP) extends Roo Code's capabilities by connecting to external tools and services. This guide covers everything you need to know about using MCP with Roo Code.
 
 ## Configuring MCP Servers
@@ -146,6 +153,31 @@ Disabling your MCP Server Creation here will just remove the instructions from y
 
   <img src="/img/using-mcp-in-roo/using-mcp-in-roo-3.png" alt="Enable MCP Server Creation toggle" width="400" />
 
+## How to Use Roo to Create an MCP Server
+
+If you need a specific tool or capability that isn't available through existing MCP servers, you can ask Roo Code to build a new one for you.
+
+**Prerequisite:** Ensure the **[Enable MCP Server Creation](#enabling-or-disabling-mcp-server-creation)** setting is checked ON in the MCP settings panel. If this is disabled, Roo will not have the necessary instructions to build a server.
+
+**How to Initiate:**
+
+1.  **Make a Request:** Clearly ask Roo for the new tool or capability. For example:
+    *   "Create an MCP tool that gets the current price of Bitcoin."
+    *   "I need a tool that connects to my company's internal user database via its API."
+    *   "Build an MCP server to interact with the GitHub Gist API."
+
+2.  **Roo's Process (Simplified):** Once you make the request (and the setting is enabled), Roo will:
+    *   Fetch internal instructions for server creation.
+    *   Scaffold a basic server project (usually TypeScript) in the default MCP directory (e.g., `~/Documents/Cline/MCP` on macOS) unless you specify otherwise.
+    *   Write the code to implement the requested tool, including handling necessary API calls.
+    *   **Handle Secrets:** If the tool requires API keys or other credentials, Roo will ask you for them using the [`ask_followup_question`](/advanced-usage/available-tools/ask-followup-question) tool to ensure they are configured securely as environment variables for the server.
+    *   **Configure:** Automatically add the new server's configuration to your global `mcp_settings.json` or project `.roo/mcp.json` file.
+    *   **Activate:** Attempt to connect to the newly configured server so its tools are immediately available.
+
+3.  **Outcome:** If successful, Roo will confirm the creation, and the new server and its tools will appear in your MCP server list, ready for use.
+
+This feature allows you to tailor Roo's capabilities by having it build the specific integrations you need directly from your requests. For a deeper look into the internal mechanics, see the [Tool Calling Mechanism](/advanced-usage/available-tools/tool-use-overview#tool-calling-mechanism).
+
 ## Managing Individual MCP Servers
 
    <img src="/img/using-mcp-in-roo/using-mcp-in-roo-8.png" alt="Example of a configuration pane for a MCP Server" width="400" />