Document image attachment support in SDK READMEs

dotnet/README.md

@@ -200,6 +200,31 @@ session.On(evt =>
 });
 ```
 
+## Image Support
+
+The SDK supports image attachments via the `Attachments` parameter. You can attach images by providing their file path:
+
+```csharp
+await session.SendAsync(new MessageOptions
+{
+    Prompt = "What's in this image?",
+    Attachments = new List<UserMessageDataAttachmentsItem>
+    {
+        new UserMessageDataAttachmentsItem
+        {
+            Type = UserMessageDataAttachmentsItemType.File,
+            Path = "/path/to/image.jpg"
+        }
+    }
+});
+```
+
+Supported image formats include JPG, PNG, GIF, and other common image types. The agent's `view` tool can also read images directly from the filesystem, so you can also ask questions like:
+
+```csharp
+await session.SendAsync(new MessageOptions { Prompt = "What does the most recent jpg in this directory portray?" });
+```
+
 ## Streaming
 
 Enable streaming to receive assistant response chunks as they're generated:

go/README.md

@@ -112,6 +112,30 @@ func main() {
 
 - `Bool(v bool) *bool` - Helper to create bool pointers for `AutoStart`/`AutoRestart` options
 
+## Image Support
+
+The SDK supports image attachments via the `Attachments` field in `MessageOptions`. You can attach images by providing their file path:
+
+```go
+_, err = session.Send(copilot.MessageOptions{
+    Prompt: "What's in this image?",
+    Attachments: []copilot.Attachment{
+        {
+            Type: "file",
+            Path: "/path/to/image.jpg",
+        },
+    },
+})
+```
+
+Supported image formats include JPG, PNG, GIF, and other common image types. The agent's `view` tool can also read images directly from the filesystem, so you can also ask questions like:
+
+```go
+_, err = session.Send(copilot.MessageOptions{
+    Prompt: "What does the most recent jpg in this directory portray?",
+})
+```
+
 ### Tools
 
 Expose your own functionality to Copilot by attaching tools to a session.

nodejs/README.md

@@ -183,6 +183,28 @@ Sessions emit various events during processing:
 
 See `SessionEvent` type in the source for full details.
 
+## Image Support
+
+The SDK supports image attachments via the `attachments` parameter. You can attach images by providing their file path:
+
+```typescript
+await session.send({
+    prompt: "What's in this image?",
+    attachments: [
+        {
+            type: "file",
+            path: "/path/to/image.jpg",
+        },
+    ],
+});
+```
+
+Supported image formats include JPG, PNG, GIF, and other common image types. The agent's `view` tool can also read images directly from the filesystem, so you can also ask questions like:
+
+```typescript
+await session.send({ prompt: "What does the most recent jpg in this directory portray?" });
+```
+
 ## Streaming
 
 Enable streaming to receive assistant response chunks as they're generated:

python/README.md

@@ -155,6 +155,28 @@ session = await client.create_session({
 
 The SDK automatically handles `tool.call`, executes your handler (sync or async), and responds with the final result when the tool completes.
 
+## Image Support
+
+The SDK supports image attachments via the `attachments` parameter. You can attach images by providing their file path:
+
+```python
+await session.send({
+    "prompt": "What's in this image?",
+    "attachments": [
+        {
+            "type": "file",
+            "path": "/path/to/image.jpg",
+        }
+    ]
+})
+```
+
+Supported image formats include JPG, PNG, GIF, and other common image types. The agent's `view` tool can also read images directly from the filesystem, so you can also ask questions like:
+
+```python
+await session.send({"prompt": "What does the most recent jpg in this directory portray?"})
+```
+
 ## Streaming
 
 Enable streaming to receive assistant response chunks as they're generated: