From d032f056a226bf0b222bf58737e7a70669fe0d66 Mon Sep 17 00:00:00 2001
From: Don Jayamanne <don.jayamanne@outlook.com>
Date: Tue, 3 Mar 2026 08:43:43 +1100
Subject: [PATCH] feat(chat): add support for hand-off prompts in chat sessions

---
 .../chat/browser/chatSessions/chatSessions.contribution.ts   | 4 ++++
 src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts   | 5 +++--
 .../workbench/contrib/chat/common/participants/chatAgents.ts | 1 +
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/vs/workbench/contrib/chat/browser/chatSessions/chatSessions.contribution.ts b/src/vs/workbench/contrib/chat/browser/chatSessions/chatSessions.contribution.ts
index 4d426fcaa17be8..4f53329ca1b79f 100644
--- a/src/vs/workbench/contrib/chat/browser/chatSessions/chatSessions.contribution.ts
+++ b/src/vs/workbench/contrib/chat/browser/chatSessions/chatSessions.contribution.ts
@@ -172,6 +172,10 @@ const extensionPoint = ExtensionsRegistry.registerExtensionPoint<IChatSessionsEx
 						supportsPromptAttachments: {
 							description: localize('chatSessionsExtPoint.supportsPromptAttachments', 'Whether this chat session supports attaching prompts.'),
 							type: 'boolean'
+						},
+						supportsHandOffs: {
+							description: localize('chatSessionsExtPoint.supportsHandOffs', 'Whether this chat session supports hand-off prompts.'),
+							type: 'boolean'
 						}
 					}
 				},
diff --git a/src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts b/src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts
index 40e88107acad02..885e720de64f58 100644
--- a/src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts
+++ b/src/vs/workbench/contrib/chat/browser/widget/chatWidget.ts
@@ -183,6 +183,7 @@ const supportsAllAttachments: Required<IChatAgentAttachmentCapabilities> = {
 	supportsSymbolAttachments: true,
 	supportsTerminalAttachments: true,
 	supportsPromptAttachments: true,
+	supportsHandOffs: true,
 };
 
 const DISCLAIMER = localize('chatDisclaimer', "AI responses may be inaccurate");
@@ -1154,8 +1155,8 @@ export class ChatWidget extends Disposable implements IChatWidget {
 			return;
 		}
 
-		// Skip rendering in coding agent sessions
-		if (this.isLockedToCodingAgent) {
+		// Skip rendering in coding agent sessions unless the agent supports hand-offs
+		if (this.isLockedToCodingAgent && !this._attachmentCapabilities.supportsHandOffs) {
 			this.chatSuggestNextWidget.hide();
 			return;
 		}
diff --git a/src/vs/workbench/contrib/chat/common/participants/chatAgents.ts b/src/vs/workbench/contrib/chat/common/participants/chatAgents.ts
index a5dbf7f25c50e2..8a92fdb502f07b 100644
--- a/src/vs/workbench/contrib/chat/common/participants/chatAgents.ts
+++ b/src/vs/workbench/contrib/chat/common/participants/chatAgents.ts
@@ -47,6 +47,7 @@ export interface IChatAgentAttachmentCapabilities {
 	supportsSymbolAttachments?: boolean;
 	supportsTerminalAttachments?: boolean;
 	supportsPromptAttachments?: boolean;
+	supportsHandOffs?: boolean;
 }
 
 export interface IChatAgentData {