feat(host): browse MCP tools and call history

jetwhale-host/app/src/main/composeResources/values-ja/strings.xml

@@ -38,4 +38,22 @@
     <string name="mcp_tools_no_match">一致するツールがありません</string>
     <string name="mcp_tools_parameters">パラメータ</string>
     <string name="mcp_tools_required">必須</string>
+    <string name="mcp_tools_tab_tools">ツール</string>
+    <string name="mcp_tools_tab_history">履歴</string>
+    <string name="mcp_history_empty">MCP tools の呼び出し履歴はありません</string>
+    <string name="mcp_history_succeeded">成功</string>
+    <string name="mcp_history_failed">失敗</string>
+    <string name="mcp_history_copy_tool_name">ツール名をコピー</string>
+    <string name="mcp_history_copy_arguments">引数をコピー</string>
+    <string name="mcp_history_copy_details">詳細をコピー</string>
+    <string name="mcp_history_copy_response">レスポンスをコピー</string>
+    <string name="mcp_history_no_arguments">引数なし</string>
+    <string name="mcp_history_response">レスポンス</string>
+    <string name="mcp_history_no_response">レスポンスなし</string>
+    <string name="mcp_tools_open_all">MCP tools を閲覧</string>
+    <string name="mcp_tools_filter_plugin">プラグイン</string>
+    <string name="mcp_tools_filter_session">セッション</string>
+    <string name="mcp_tools_filter_all">すべて</string>
+    <string name="mcp_tools_filter_add">フィルターを追加</string>
+    <string name="mcp_tools_filter_remove">フィルターを解除</string>
 </resources>

jetwhale-host/app/src/main/composeResources/values/strings.xml

@@ -38,4 +38,22 @@
     <string name="mcp_tools_no_match">No matching tools</string>
     <string name="mcp_tools_parameters">Parameters</string>
     <string name="mcp_tools_required">required</string>
+    <string name="mcp_tools_tab_tools">Tools</string>
+    <string name="mcp_tools_tab_history">History</string>
+    <string name="mcp_history_empty">No MCP tool calls yet</string>
+    <string name="mcp_history_succeeded">Succeeded</string>
+    <string name="mcp_history_failed">Failed</string>
+    <string name="mcp_history_copy_tool_name">Copy tool name</string>
+    <string name="mcp_history_copy_arguments">Copy arguments</string>
+    <string name="mcp_history_copy_details">Copy details</string>
+    <string name="mcp_history_copy_response">Copy response</string>
+    <string name="mcp_history_no_arguments">No arguments</string>
+    <string name="mcp_history_response">Response</string>
+    <string name="mcp_history_no_response">No response</string>
+    <string name="mcp_tools_open_all">Browse MCP tools</string>
+    <string name="mcp_tools_filter_plugin">Plugin</string>
+    <string name="mcp_tools_filter_session">Session</string>
+    <string name="mcp_tools_filter_all">All</string>
+    <string name="mcp_tools_filter_add">Add filter</string>
+    <string name="mcp_tools_filter_remove">Remove filter</string>
 </resources>

jetwhale-host/app/src/main/kotlin/com/kitakkun/jetwhale/host/JetWhaleApp.kt

@@ -35,6 +35,7 @@ import com.kitakkun.jetwhale.host.navigation.addSingleTop
 import com.kitakkun.jetwhale.host.navigation.bringPluginBackToMainWindow
 import com.kitakkun.jetwhale.host.navigation.followPluginToSession
 import com.kitakkun.jetwhale.host.navigation.isPluginPoppedOut
+import com.kitakkun.jetwhale.host.navigation.openMcpTools
 import com.kitakkun.jetwhale.host.settings.SettingsScreenSegmentedMenu
 import com.kitakkun.jetwhale.host.ui.AppEnvironment
 import com.kitakkun.jetwhale.host.ui.JetWhaleTheme
@@ -139,6 +140,9 @@ fun JetWhaleApp() {
                                     onClickPlugin = { pluginId, sessionId ->
                                         backStack.addSingleTop(PluginNavKey(pluginId, sessionId))
                                     },
+                                    onOpenMcpTools = { pluginId, sessionId ->
+                                        backStack.openMcpTools(pluginId = pluginId, sessionId = sessionId)
+                                    },
                                     onClickPopout = { pluginId, pluginName, sessionId ->
                                         backStack.addSingleTop(
                                             PluginPopoutNavKey(

jetwhale-host/app/src/main/kotlin/com/kitakkun/jetwhale/host/component/ToolingDrawer.kt

@@ -24,6 +24,8 @@ fun ToolingDrawer(
     onClickPluginSettings: () -> Unit,
     onClickInfo: () -> Unit,
     onClickPlugin: (String) -> Unit,
+    onOpenMcpTools: (pluginId: String) -> Unit,
+    onOpenAllMcpTools: () -> Unit,
     onSelectSession: (DebugSession) -> Unit,
     onClickPopout: (DrawerPluginItemUiState) -> Unit,
     isPoppedOut: (pluginId: String) -> Boolean,
@@ -45,6 +47,8 @@ fun ToolingDrawer(
                 onClickShrinkDrawer = { expandMenu = false },
                 onClickSettings = onClickSettings,
                 onClickPluginSettings = onClickPluginSettings,
+                onOpenMcpTools = onOpenMcpTools,
+                onOpenAllMcpTools = onOpenAllMcpTools,
                 onClickPlugin = { onClickPlugin(it.id) },
                 onSelectSession = onSelectSession,
                 onClickPopout = onClickPopout,
@@ -64,6 +68,7 @@ fun ToolingDrawer(
                 onClickExpandMenu = { expandMenu = true },
                 onClickSettings = onClickSettings,
                 onClickInfo = onClickInfo,
+                onOpenAllMcpTools = onOpenAllMcpTools,
                 onSelectSession = onSelectSession,
             )
         },

jetwhale-host/app/src/main/kotlin/com/kitakkun/jetwhale/host/di/JetWhaleAppGraph.kt

@@ -3,6 +3,7 @@ package com.kitakkun.jetwhale.host.di
 import com.kitakkun.jetwhale.host.ApplicationLifecycleOwner
 import com.kitakkun.jetwhale.host.BuildConfig
 import com.kitakkun.jetwhale.host.architecture.ScreenContext
+import com.kitakkun.jetwhale.host.drawer.McpToolsScreenContext
 import com.kitakkun.jetwhale.host.drawer.ToolingScaffoldScreenContext
 import com.kitakkun.jetwhale.host.mcp.McpServerService
 import com.kitakkun.jetwhale.host.model.AppearanceSettingsSubscriptionKey
@@ -38,6 +39,7 @@ interface JetWhaleAppGraph : ScreenContext {
     val swrClient: SwrClientPlus
 
     val toolingScaffoldScreenContext: ToolingScaffoldScreenContext
+    val mcpToolsScreenContext: McpToolsScreenContext
     val licensesScreenContext: LicensesScreenContext
     val settingsScreenContext: SettingsScreenContext
     val pluginScreenContextFactory: PluginScreenContext.Factory

jetwhale-host/app/src/main/kotlin/com/kitakkun/jetwhale/host/drawer/DrawerPluginItemUiState.kt

@@ -1,9 +1,7 @@
 package com.kitakkun.jetwhale.host.drawer
 
-import com.kitakkun.jetwhale.host.model.McpToolSummary
 import com.kitakkun.jetwhale.host.model.PluginAvailability
 import com.kitakkun.jetwhale.host.model.PluginIconResource
-import kotlinx.collections.immutable.ImmutableList
 
 data class DrawerPluginItemUiState(
     val name: String,
@@ -13,8 +11,6 @@ data class DrawerPluginItemUiState(
     val pluginAvailability: PluginAvailability,
     /** True while an AI agent is driving this plugin's UI in the selected session. */
     val underAiControl: Boolean,
-    /** The MCP tools this plugin exposes for the selected session; empty when it publishes none. */
-    val mcpTools: ImmutableList<McpToolSummary>,
-) {
-    val exposesMcpTools: Boolean get() = mcpTools.isNotEmpty()
-}
+    /** True when this plugin publishes MCP tools of its own for the selected session. */
+    val exposesMcpTools: Boolean,
+)

jetwhale-host/app/src/main/kotlin/com/kitakkun/jetwhale/host/drawer/ExpandedToolingDrawerView.kt

@@ -64,6 +64,8 @@ fun ExpandedToolingDrawerView(
     onClickShrinkDrawer: () -> Unit,
     onClickSettings: () -> Unit,
     onClickPluginSettings: () -> Unit,
+    onOpenMcpTools: (pluginId: String) -> Unit,
+    onOpenAllMcpTools: () -> Unit,
     onClickPlugin: (DrawerPluginItemUiState) -> Unit,
     onSelectSession: (DebugSession) -> Unit,
     onClickPopout: (DrawerPluginItemUiState) -> Unit,
@@ -82,11 +84,16 @@ fun ExpandedToolingDrawerView(
                     contentDescription = null,
                 )
             }
-            IconButton(onClick = onClickSettings) {
-                Icon(
-                    imageVector = Icons.Default.Settings,
-                    contentDescription = null,
-                )
+            Row {
+                // Opens the browser unscoped, so the tools an agent can reach are visible without
+                // first finding a plugin that happens to publish some.
+                McpToolsDrawerButton(onClick = onOpenAllMcpTools)
+                IconButton(onClick = onClickSettings) {
+                    Icon(
+                        imageVector = Icons.Default.Settings,
+                        contentDescription = null,
+                    )
+                }
             }
         }
         Column(
@@ -169,7 +176,8 @@ fun ExpandedToolingDrawerView(
                                         inactiveIconResource = it.inactiveIconResource,
                                         selected = it.id == selectedPluginId,
                                         underAiControl = it.underAiControl,
-                                        mcpTools = it.mcpTools,
+                                        exposesMcpTools = it.exposesMcpTools,
+                                        onClickMcpBadge = { onOpenMcpTools(it.id) },
                                         onClick = { onClickPlugin(it) },
                                         popupMenuContent = { dismiss ->
                                             DropdownMenuItem(
@@ -241,7 +249,8 @@ fun ExpandedToolingDrawerView(
                                         inactiveIconResource = it.inactiveIconResource,
                                         selected = false,
                                         underAiControl = it.underAiControl,
-                                        mcpTools = it.mcpTools,
+                                        exposesMcpTools = it.exposesMcpTools,
+                                        onClickMcpBadge = { onOpenMcpTools(it.id) },
                                         onClick = {
                                             // do nothing
                                         },
@@ -287,7 +296,8 @@ fun ExpandedToolingDrawerView(
                                     inactiveIconResource = it.inactiveIconResource,
                                     selected = false,
                                     underAiControl = it.underAiControl,
-                                    mcpTools = it.mcpTools,
+                                    exposesMcpTools = it.exposesMcpTools,
+                                    onClickMcpBadge = { onOpenMcpTools(it.id) },
                                     onClick = {
                                         // do nothing
                                     },

jetwhale-host/app/src/main/kotlin/com/kitakkun/jetwhale/host/drawer/JetWhaleToolingScaffold.kt

@@ -19,6 +19,8 @@ fun ToolingScaffold(
     onClickPluginSettings: () -> Unit,
     onClickInfo: () -> Unit,
     onClickPlugin: (String) -> Unit,
+    onOpenMcpTools: (pluginId: String) -> Unit,
+    onOpenAllMcpTools: () -> Unit,
     onClickPopout: (DrawerPluginItemUiState) -> Unit,
     isPoppedOut: (pluginId: String) -> Boolean,
     onClickBringBack: (DrawerPluginItemUiState) -> Unit,
@@ -41,6 +43,8 @@ fun ToolingScaffold(
                     onClickPluginSettings = onClickPluginSettings,
                     onClickInfo = onClickInfo,
                     onClickPlugin = onClickPlugin,
+                    onOpenMcpTools = onOpenMcpTools,
+                    onOpenAllMcpTools = onOpenAllMcpTools,
                     onSelectSession = onSelectSession,
                     onClickPopout = onClickPopout,
                     isPoppedOut = isPoppedOut,
@@ -72,6 +76,8 @@ private fun ToolingScaffoldPreview() {
         onClickPluginSettings = {},
         onClickInfo = {},
         onClickPlugin = {},
+        onOpenMcpTools = {},
+        onOpenAllMcpTools = {},
         onSelectSession = {},
         onClickPopout = {},
         isPoppedOut = { false },

jetwhale-host/app/src/main/kotlin/com/kitakkun/jetwhale/host/drawer/McpToolsDrawerButton.kt

@@ -0,0 +1,39 @@
+package com.kitakkun.jetwhale.host.drawer
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Build
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.PlainTooltip
+import androidx.compose.material3.Text
+import androidx.compose.material3.TooltipAnchorPosition
+import androidx.compose.material3.TooltipBox
+import androidx.compose.material3.TooltipDefaults
+import androidx.compose.material3.rememberTooltipState
+import androidx.compose.runtime.Composable
+import com.kitakkun.jetwhale.host.Res
+import com.kitakkun.jetwhale.host.mcp_tools_open_all
+import org.jetbrains.compose.resources.stringResource
+
+/**
+ * Drawer entry point to the MCP tools browser that is not tied to a plugin, so the browser is
+ * reachable even when no plugin badge is on screen.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun McpToolsDrawerButton(onClick: () -> Unit) {
+    val label = stringResource(Res.string.mcp_tools_open_all)
+    TooltipBox(
+        positionProvider = TooltipDefaults.rememberTooltipPositionProvider(TooltipAnchorPosition.Above),
+        tooltip = { PlainTooltip { Text(label) } },
+        state = rememberTooltipState(),
+    ) {
+        IconButton(onClick = onClick) {
+            Icon(
+                imageVector = Icons.Default.Build,
+                contentDescription = label,
+            )
+        }
+    }
+}