Describe the MCP server feature in the readme

.cursor/mcp.json

@@ -0,0 +1,7 @@
+{
+  "mcpServers": {
+    "trigger.dev": {
+      "url": "http://localhost:3333/sse"
+    }
+  }
+}

packages/cli-v3/README.md

@@ -19,6 +19,37 @@ Trigger.dev is an open source platform that makes it easy to create event-driven
 | [list-profiles](https://trigger.dev/docs/cli-list-profiles-commands) | List all of your CLI profiles.                                     |
 | [update](https://trigger.dev/docs/cli-update-commands)               | Updates all `@trigger.dev/*` packages to match the CLI version.    |
 
+## MCP Server
+
+The [Model Context Protocol (MCP)](https://modelcontextprotocol.io/introduction) is an open protocol that allows you to provide custom tools
+to agentic LLM clients, like [Claude for Desktop](https://docs.anthropic.com/en/docs/claude-for-desktop/overview), [Cursor](https://www.cursor.com/), [Windsurf](https://windsurf.com/), etc...
+
+The Trigger.dev CLI can expose an MCP server and enable you interact with Trigger.dev in agentic LLM workflows. For example, you can use
+it to trigger tasks via natural language, view task runs, view logs, debug issues with task runs, etc...
+
+### Starting the Trigger.dev MCP Server
+
+To start the Trigger.dev MCP server, simply pass the `--mcp` flag to the `dev` command:
+
+```bash
+trigger dev --mcp
+```
+
+By default it runs on port `3333`. You can change this by passing the `--mcp-port` flag:
+
+```bash
+trigger dev --mcp --mcp-port 3334
+```
+
+### Configuring your MCP client
+
+This depends on what tool you are using. For Cursor, the configuration is in the [.cursor/mcp.json](../../.cursor/mcp.json) file
+and should be good to go as long as you use the default MCP server port.
+
+Check out [Cursor's docs](https://docs.cursor.com/context/model-context-protocol) for further details.
+
+Tip: try out [Cursor's YOLO mode](https://docs.cursor.com/context/model-context-protocol#yolo-mode) for a seamless experience :D
+
 ## Support
 
 If you have any questions, please reach out to us on [Discord](https://trigger.dev/discord) and we'll be happy to help.

packages/cli-v3/src/commands/dev.ts

@@ -50,7 +50,6 @@ export function configureDevCommand(program: Command) {
         "--keep-tmp-files",
         "Keep temporary files after the dev session ends, helpful for debugging"
       )
-      // TODO: add a more detailed description, maybe a pointer to the docs on how to use MCP
       .option("--mcp", "Start the MCP server")
       .option("--mcp-port", "The port to run the MCP server on", "3333")
   ).action(async (options) => {