diff --git a/Sources/Bonsplit/Internal/Views/TabBarView.swift b/Sources/Bonsplit/Internal/Views/TabBarView.swift
index 7ac1234f..0a44e8ac 100644
--- a/Sources/Bonsplit/Internal/Views/TabBarView.swift
+++ b/Sources/Bonsplit/Internal/Views/TabBarView.swift
@@ -884,6 +884,7 @@ struct TabContextMenuState {
     let canMoveToNewWorkspace: Bool
     let canMoveToLeftPane: Bool
     let canMoveToRightPane: Bool
+    let canForkConversation: Bool
     let isZoomed: Bool
     let hasSplits: Bool
     let shortcuts: [TabContextAction: KeyboardShortcut]
@@ -1386,6 +1387,7 @@ struct TabBarView: View {
             canMoveToNewWorkspace: controller.allTabIds.count > 1,
             canMoveToLeftPane: controller.adjacentPane(to: pane.id, direction: .left) != nil,
             canMoveToRightPane: controller.adjacentPane(to: pane.id, direction: .right) != nil,
+            canForkConversation: controller.tabContextForkConversationAvailabilityProvider?(TabID(id: tab.id), pane.id) ?? false,
             isZoomed: splitViewController.zoomedPaneId == pane.id,
             hasSplits: splitViewController.rootNode.allPaneIds.count > 1,
             shortcuts: controller.contextMenuShortcuts
diff --git a/Sources/Bonsplit/Internal/Views/TabItemView.swift b/Sources/Bonsplit/Internal/Views/TabItemView.swift
index 9c067d37..7f167191 100644
--- a/Sources/Bonsplit/Internal/Views/TabItemView.swift
+++ b/Sources/Bonsplit/Internal/Views/TabItemView.swift
@@ -832,6 +832,17 @@ enum TabContextMenuBuilder {
             )
         }
 
+        if state.canForkConversation {
+            menu.addItem(.separator())
+            addAction(
+                title: localized("tabContext.forkConversation", defaultValue: "Fork Conversation"),
+                action: .forkConversation,
+                state: state,
+                target: target,
+                to: menu
+            )
+        }
+
         menu.addItem(.separator())
 
         addAction(
diff --git a/Sources/Bonsplit/Public/BonsplitController.swift b/Sources/Bonsplit/Public/BonsplitController.swift
index 1688e1cc..a5a407c9 100644
--- a/Sources/Bonsplit/Public/BonsplitController.swift
+++ b/Sources/Bonsplit/Public/BonsplitController.swift
@@ -77,6 +77,11 @@ public final class BonsplitController {
     /// Host-provided destinations for the tab context menu's Move Tab submenu.
     @ObservationIgnored public var tabContextMoveDestinationsProvider: ((TabID, PaneID) -> [TabContextMoveDestination])?
 
+    /// Host-provided synchronous check that decides whether the tab context menu should
+    /// surface a "Fork Conversation" action for the tab (e.g. an active forkable agent
+    /// session). Return `true` to enable the item, `false` (or omit the provider) to hide it.
+    @ObservationIgnored public var tabContextForkConversationAvailabilityProvider: ((TabID, PaneID) -> Bool)?
+
     /// Called when the user explicitly requests to close a tab from the tab strip UI.
     /// Internal host-driven closes should not use this hook.
     @ObservationIgnored public var onTabCloseRequest: ((_ tabId: TabID, _ paneId: PaneID, _ source: TabCloseRequestSource) -> Void)?
diff --git a/Sources/Bonsplit/Public/Types/TabContextAction.swift b/Sources/Bonsplit/Public/Types/TabContextAction.swift
index 6181f3d5..460679e8 100644
--- a/Sources/Bonsplit/Public/Types/TabContextAction.swift
+++ b/Sources/Bonsplit/Public/Types/TabContextAction.swift
@@ -20,6 +20,7 @@ public enum TabContextAction: String, CaseIterable, Sendable {
     case markAsRead
     case markAsUnread
     case toggleZoom
+    case forkConversation
 }
 
 public struct TabContextMoveDestination: Identifiable, Equatable, Sendable {
diff --git a/Sources/Bonsplit/Resources/en.lproj/Localizable.strings b/Sources/Bonsplit/Resources/en.lproj/Localizable.strings
index 1acd4adb..c5a65a44 100644
--- a/Sources/Bonsplit/Resources/en.lproj/Localizable.strings
+++ b/Sources/Bonsplit/Resources/en.lproj/Localizable.strings
@@ -18,3 +18,4 @@
 "tabContext.pinTab" = "Pin Tab";
 "tabContext.markTabAsRead" = "Mark Tab as Read";
 "tabContext.markTabAsUnread" = "Mark Tab as Unread";
+"tabContext.forkConversation" = "Fork Conversation";
diff --git a/Sources/Bonsplit/Resources/ja.lproj/Localizable.strings b/Sources/Bonsplit/Resources/ja.lproj/Localizable.strings
index 8799ee73..cd520184 100644
--- a/Sources/Bonsplit/Resources/ja.lproj/Localizable.strings
+++ b/Sources/Bonsplit/Resources/ja.lproj/Localizable.strings
@@ -18,3 +18,4 @@
 "tabContext.pinTab" = "タブをピン留め";
 "tabContext.markTabAsRead" = "タブを既読にする";
 "tabContext.markTabAsUnread" = "タブを未読にする";
+"tabContext.forkConversation" = "会話をフォーク";
diff --git a/Tests/BonsplitTests/BonsplitTests.swift b/Tests/BonsplitTests/BonsplitTests.swift
index b9e08fb3..decf8414 100644
--- a/Tests/BonsplitTests/BonsplitTests.swift
+++ b/Tests/BonsplitTests/BonsplitTests.swift
@@ -1558,6 +1558,7 @@ final class BonsplitTests: XCTestCase {
             canMoveToNewWorkspace: true,
             canMoveToLeftPane: false,
             canMoveToRightPane: true,
+            canForkConversation: false,
             isZoomed: false,
             hasSplits: true,
             shortcuts: [:]