SEP-1686: Tasks (#1645)

examples/clients/simple-task-client/README.md

@@ -0,0 +1,43 @@
+# Simple Task Client
+
+A minimal MCP client demonstrating polling for task results over streamable HTTP.
+
+## Running
+
+First, start the simple-task server in another terminal:
+
+```bash
+cd examples/servers/simple-task
+uv run mcp-simple-task
+```
+
+Then run the client:
+
+```bash
+cd examples/clients/simple-task-client
+uv run mcp-simple-task-client
+```
+
+Use `--url` to connect to a different server.
+
+## What it does
+
+1. Connects to the server via streamable HTTP
+2. Calls the `long_running_task` tool as a task
+3. Polls the task status until completion
+4. Retrieves and prints the result
+
+## Expected output
+
+```text
+Available tools: ['long_running_task']
+
+Calling tool as a task...
+Task created: <task-id>
+  Status: working - Starting work...
+  Status: working - Processing step 1...
+  Status: working - Processing step 2...
+  Status: completed -
+
+Result: Task completed!
+```