Add Standalone Activities Interactive Demo page [experimentation]

docs/develop/standalone-activities-interactive-demo.mdx

@@ -0,0 +1,83 @@
+---
+id: standalone-activities-interactive-demo
+title: Standalone Activities Demo
+sidebar_label: Standalone Activities
+toc_max_heading_level: 3
+keywords:
+  - standalone activity
+  - interactive demo
+tags:
+  - Standalone Activities
+  - Temporal SDKs
+description: An interactive overview of Temporal Standalone Activities.
+---
+
+:::tip SUPPORT, STABILITY, and DEPENDENCY INFO
+
+[Standalone Activities](/standalone-activity) are available as a
+[Public Preview](/evaluate/development-production-features/release-stages#public-preview) feature
+in the Go, Python, and .NET SDKs, and as a
+[Pre-release](/evaluate/development-production-features/release-stages#pre-release) feature in the
+Java and TypeScript SDKs.
+
+Standalone Activities require Temporal CLI v1.7.0 or higher and Temporal Server v1.31.0 or higher.
+
+:::
+
+Standalone Activities let you run a single Activity straight from your application without
+writing a Workflow. Your code calls the Temporal Client, the Server durably enqueues the request
+for a Worker to pick up, and the result comes back through a handle that your code can wait on or
+check later.
+
+Try the demo below to walk through the full flow, tweak the retry and timeout settings, and watch
+the SDK code and CLI command update as you go.
+
+import { StandaloneActivityDemo } from '@site/src/components';
+
+<StandaloneActivityDemo />
+
+---
+
+## How it works
+
+When you call `client.ExecuteActivity()` (or the equivalent in your SDK), the following happens:
+
+1. **Connect**: Your application opens a connection to the Temporal Server using a Temporal Client
+   configured with your namespace and credentials.
+2. **Schedule**: The Server durably persists the Activity Task on the specified Task Queue so that
+   the request survives Worker restarts and network interruptions.
+3. **Poll**: A Worker that is polling that Task Queue picks up the Activity Task and prepares to
+   execute it.
+4. **Execute**: The Worker runs your Activity function with the provided arguments and reports the
+   outcome back to the Server.
+5. **Return**: The Server stores the result and returns it to the original caller through the
+   `ActivityHandle` that was created when the Activity was scheduled.
+
+Because the Server durably persists the Activity, it survives Worker restarts and network
+interruptions. If the Activity fails, the Server automatically retries it according to the Retry
+Policy you configure.
+
+### Standalone vs Workflow Activities
+
+| | Workflow Activity | Standalone Activity |
+|---|---|---|
+| Orchestrated by | A Workflow Definition | Your application code (via the Temporal Client) |
+| Started with | SDK-specific (for example, `workflow.ExecuteActivity()` in Go) | SDK-specific (for example, `client.ExecuteActivity()` in Go, `client.StartActivityAsync()` in .NET) |
+| Retry policy | Set in `ActivityOptions` inside your Workflow | Set in `StartActivityOptions` when calling the client |
+| Visibility | Shown in the Workflow's Event History | Shown in the Activity list and count views |
+| Use case | Multi-step orchestration with multiple Activities | Single, independent jobs like sending an email or processing a webhook |
+
+The Activity function and Worker registration are **identical** for both approaches, and only the
+execution path that triggers the Activity differs between them.
+
+---
+
+## Next steps
+
+For complete API reference and advanced usage, see the SDK-specific guides:
+
+- [Standalone Activities with the Go SDK](/develop/go/activities/standalone-activities)
+- [Standalone Activities with the Java SDK](/develop/java/activities/standalone-activities)
+- [Standalone Activities with the Python SDK](/develop/python/activities/standalone-activities)
+- [Standalone Activities with the TypeScript SDK](/develop/typescript/activities/standalone-activities)
+- [Standalone Activities with the .NET SDK](/develop/dotnet/activities/standalone-activities)

sidebars.js

@@ -1661,6 +1661,14 @@ module.exports = {
         'web-ui',
       ],
     },
+    {
+      type: 'category',
+      label: 'Interactive Demos',
+      collapsed: true,
+      items: [
+        'develop/standalone-activities-interactive-demo',
+      ],
+    },
     'glossary',
     'with-ai',
     // {