Include cli startup instructions

inspector/dev-setup.mdx

@@ -42,6 +42,28 @@ Make sure you have the following installed:
 - **Format code**: `npm run prettier-fix`
 - **Build project**: `npm run build`
 
+## Testing with Config Files
+
+When developing, you can test your changes with configuration files:
+
+```bash
+# Build first, then run with config
+npm run build
+npm start -- --config ../config.json --server everything
+
+# Or run the CLI script directly
+node bin/start.js --config ../config.json --server everything
+```
+
+<Warning>
+Remember to use `--` when passing arguments through npm scripts: `npm start -- --config file.json`
+</Warning>
+
+This is useful for:
+- Testing changes on a specific branch
+- Validating configuration file handling
+- Development workflow with multiple MCP servers
+
 ## Next Steps
 
 - Check out our [Contributing Guide](/inspector/contributing-guide) for detailed guidelines

installation.mdx

@@ -71,6 +71,46 @@ This will open the MCPJam inspector and start an Ollama model with the `ollama s
 npx @mcpjam/inspector@latest --ollama llama3.2
 ```
 
+## Start with Configuration File
+
+You can use a configuration file to connect to multiple MCP servers at once:
+
+```bash
+# Using npx directly
+npx @mcpjam/inspector@latest --config path/to/config.json --server myserver
+
+# If running from the repository
+npm run build
+npm start -- --config path/to/config.json --server myserver
+```
+
+<Info>
+**Note**: When using `npm start`, you need the `--` separator to pass arguments to the underlying script.
+</Info>
+
+Example configuration file structure:
+
+```json
+{
+  "mcpServers": {
+    "everything": {
+      "command": "npx",
+      "args": ["-y", "@modelcontextprotocol/server-everything"],
+      "env": {
+        "HELLO": "Hello MCP!"
+      }
+    },
+    "weather-server": {
+      "command": "python",
+      "args": ["weather_server.py"],
+      "env": {
+        "WEATHER_API_KEY": "your-api-key"
+      }
+    }
+  }
+}
+```
+