MCP user guide (#9)

* Initial MCP enabling and server config guide

* MCP guide improvements

* Fix MCP page link

* Rename MCP section

Author: kostisd

docs/user-guide/MCP/mcp_connectivity.md

@@ -0,0 +1,43 @@
+# MCP Connectivity Overview
+
+This directory provides examples and configuration files to help you connect MCP servers with Datu.  
+Datu uses the [mcp-use](https://github.com/mcp-use/mcp-use) package to implement MCP clients and manage connectivity.
+
+
+## Purpose
+
+With Datu, you can connect to your MCP servers and use their tools through the Datu AI Analyst.
+
+## Enabling MCP Servers
+
+To enable MCP connectivity, set the following environment variable (see also [configurations.md](../configurations.md)):
+
+```sh
+export DATU_ENABLE_MCP=true
+```
+
+Alternatively, add it to your .env file:
+
+```sh
+DATU_ENABLE_MCP=true
+```
+
+
+### Connecting MCP Servers
+
+MCP servers are defined in a JSON configuration file (e.g. mcp_config.json).
+Each server entry specifies the command, arguments, and environment needed to start it.
+
+**Structure of mcp_config.json**
+
+```sh
+{
+  "mcpServers": {
+    "sql_generator": {
+      "command": "python",
+      "args": ["-m", "datu.mcp.tools.sql_generator"],
+      "env": { "PYTHONPATH": "." }
+    }
+  }
+}
+```

mkdocs.yml

@@ -56,12 +56,8 @@ nav:
         - user-guide/configurations.md
     - Deploy:
       - Container service: user-guide/deploy/deploy_as_container_service.md
-    - MCP Connectivity:
-        - user-guide/MCP Connectivity/mcp_connectivity.md
-    - Contribute ❤️: https://github.com/Datuanalytics/datu-core/blob/main/CONTRIBUTING.md
-
-
-
+    - MCP:
+        - user-guide/MCP/mcp_connectivity.md
   - Architecture:
     - Overview: architecture/README.md
   - Contribute ❤️: https://github.com/Datuanalytics/datu-core/blob/main/CONTRIBUTING.md