feat(ui): rework permission center to reuse tool call view

Modal Enhancements:
- Add accurate tool name extraction from message store (same method as inline chat)
- Display 'Tool Call [name]' badge (e.g., 'Tool Call read', 'Tool Call write')
- Add 'Go to Session ↗' button to navigate to originating session
- Add Prev/Next buttons for queue navigation with keyboard shortcuts (←/→)
- Add queue counter showing current position

Responsive Web Design:
- Portrait phones: 90vh max-height with safe margins (avoids browser URL bar)
- Landscape phones: 95vw with 50vh body scroll
- Tablets: adaptive layout
- Touch devices: 44-48px touch targets

Technical Changes:
- Import messageStoreBus for tool part lookup
- Query linked part.tool via permission messageId/callId
- Export setActivePermissionIdForInstance for queue navigation
- Add tool badge CSS styling

packages/server/src/background-processes/manager.ts

@@ -11,6 +11,7 @@ const ROOT_DIR = ".codenomad/background_processes"
 const INDEX_FILE = "index.json"
 const OUTPUT_FILE = "output.txt"
 const STOP_TIMEOUT_MS = 2000
+const EXIT_WAIT_TIMEOUT_MS = 5000
 const MAX_OUTPUT_BYTES = 20 * 1024
 const OUTPUT_PUBLISH_INTERVAL_MS = 1000
 
@@ -21,6 +22,7 @@ interface ManagerDeps {
 }
 
 interface RunningProcess {
+  id: string
   child: ChildProcess
   outputPath: string
   exitPromise: Promise<void>
@@ -61,9 +63,15 @@ export class BackgroundProcessManager {
     const child = spawn("bash", ["-c", command], {
       cwd: workspace.path,
       stdio: ["ignore", "pipe", "pipe"],
+      detached: process.platform !== "win32",
+    })
+
+    child.on("exit", () => {
+      this.killProcessTree(child, "SIGTERM")
     })
 
     const record: BackgroundProcess = {
+
       id,
       workspaceId,
       title,
@@ -91,7 +99,7 @@ export class BackgroundProcessManager {
       })
     })
 
-    this.running.set(id, { child, outputPath, exitPromise, workspaceId })
+    this.running.set(id, { id, child, outputPath, exitPromise, workspaceId })
 
     let lastPublishAt = 0
     const maybePublishSize = () => {
@@ -128,7 +136,7 @@ export class BackgroundProcessManager {
 
     const running = this.running.get(processId)
     if (running?.child && !running.child.killed) {
-      running.child.kill("SIGTERM")
+      this.killProcessTree(running.child, "SIGTERM")
       await this.waitForExit(running)
     }
 
@@ -149,7 +157,7 @@ export class BackgroundProcessManager {
 
     const running = this.running.get(processId)
     if (running?.child && !running.child.killed) {
-      running.child.kill("SIGTERM")
+      this.killProcessTree(running.child, "SIGTERM")
       await this.waitForExit(running)
     }
 
@@ -255,26 +263,64 @@ export class BackgroundProcessManager {
   private async cleanupWorkspace(workspaceId: string) {
     for (const [, running] of this.running.entries()) {
       if (running.workspaceId !== workspaceId) continue
-      running.child.kill("SIGTERM")
+      this.killProcessTree(running.child, "SIGTERM")
       await this.waitForExit(running)
     }
+
     await this.removeWorkspaceDir(workspaceId)
   }
 
+  private killProcessTree(child: ChildProcess, signal: NodeJS.Signals) {
+    const pid = child.pid
+    if (!pid) return
+
+    if (process.platform !== "win32") {
+      try {
+        process.kill(-pid, signal)
+        return
+      } catch {
+        // Fall back to killing the direct child.
+      }
+    }
+
+    try {
+      child.kill(signal)
+    } catch {
+      // ignore
+    }
+  }
+
   private async waitForExit(running: RunningProcess) {
-    let resolved = false
-    const timeout = setTimeout(() => {
-      if (!resolved) {
-        running.child.kill("SIGKILL")
+    let exited = false
+    const exitPromise = running.exitPromise.finally(() => {
+      exited = true
+    })
+
+    const killTimeout = setTimeout(() => {
+      if (!exited) {
+        this.killProcessTree(running.child, "SIGKILL")
       }
     }, STOP_TIMEOUT_MS)
 
-    await running.exitPromise.finally(() => {
-      resolved = true
-      clearTimeout(timeout)
-    })
+    try {
+      await Promise.race([
+        exitPromise,
+        new Promise<void>((resolve) => {
+          setTimeout(resolve, EXIT_WAIT_TIMEOUT_MS)
+        }),
+      ])
+
+      if (!exited) {
+        this.killProcessTree(running.child, "SIGKILL")
+        this.running.delete(running.id)
+        this.deps.logger.warn({ pid: running.child.pid }, "Timed out waiting for background process to exit")
+      }
+    } finally {
+      clearTimeout(killTimeout)
+    }
   }
 
+
   private statusFromExit(code: number | null): BackgroundProcessStatus {
     if (code === null) return "stopped"
     if (code === 0) return "stopped"

packages/ui/src/components/alert-dialog.tsx

@@ -1,5 +1,5 @@
 import { Dialog } from "@kobalte/core/dialog"
-import { Component, Show, createEffect } from "solid-js"
+import { Component, Show, createEffect, createSignal } from "solid-js"
 import { alertDialogState, dismissAlertDialog } from "../stores/alerts"
 import type { AlertVariant, AlertDialogState } from "../stores/alerts"
 
@@ -27,8 +27,9 @@ const variantAccent: Record<AlertVariant, { badgeBg: string; badgeBorder: string
   },
 }
 
-function dismiss(confirmed: boolean, payload?: AlertDialogState | null) {
+function dismiss(confirmed: boolean, payload?: AlertDialogState | null, promptValue?: string) {
   const current = payload ?? alertDialogState()
+
   if (current?.type === "confirm") {
     if (confirmed) {
       current.onConfirm?.()
@@ -36,7 +37,23 @@ function dismiss(confirmed: boolean, payload?: AlertDialogState | null) {
       current.onCancel?.()
     }
     current.resolve?.(confirmed)
-  } else if (confirmed) {
+    dismissAlertDialog()
+    return
+  }
+
+  if (current?.type === "prompt") {
+    if (confirmed) {
+      current.onConfirm?.()
+      current.resolvePrompt?.(promptValue ?? "")
+    } else {
+      current.onCancel?.()
+      current.resolvePrompt?.(null)
+    }
+    dismissAlertDialog()
+    return
+  }
+
+  if (confirmed) {
     current?.onConfirm?.()
   }
   dismissAlertDialog()
@@ -60,9 +77,12 @@ const AlertDialog: Component = () => {
         const accent = variantAccent[variant]
         const title = payload.title || accent.fallbackTitle
         const isConfirm = payload.type === "confirm"
-        const confirmLabel = payload.confirmLabel || (isConfirm ? "Confirm" : "OK")
+        const isPrompt = payload.type === "prompt"
+        const confirmLabel = payload.confirmLabel || (isConfirm ? "Confirm" : isPrompt ? "Run" : "OK")
         const cancelLabel = payload.cancelLabel || "Cancel"
 
+        const [inputValue, setInputValue] = createSignal(payload.inputDefaultValue ?? "")
+
         return (
           <Dialog
             open
@@ -98,27 +118,47 @@ const AlertDialog: Component = () => {
                     </div>
                   </div>
 
-                  <div class="mt-6 flex justify-end gap-3">
-                    {isConfirm && (
-                      <button
-                        type="button"
-                        class="button-secondary"
-                        onClick={() => dismiss(false, payload)}
-                      >
-                        {cancelLabel}
-                      </button>
-                    )}
-                    <button
-                      type="button"
-                      class="button-primary"
-                      ref={(el) => {
-                        primaryButtonRef = el
-                      }}
-                      onClick={() => dismiss(true, payload)}
-                    >
-                      {confirmLabel}
-                    </button>
-                  </div>
+                   <Show when={isPrompt}>
+                     <div class="mt-4">
+                       <label class="text-xs font-medium text-muted uppercase tracking-wide">
+                         {payload.inputLabel || "Arguments"}
+                       </label>
+                       <input
+                         class="modal-search-input mt-2"
+                         value={inputValue()}
+                         placeholder={payload.inputPlaceholder || ""}
+                         onInput={(e) => setInputValue(e.currentTarget.value)}
+                         onKeyDown={(e) => {
+                           if (e.key === "Enter") {
+                             e.preventDefault()
+                             dismiss(true, payload, inputValue())
+                           }
+                         }}
+                       />
+                     </div>
+                   </Show>
+
+                   <div class="mt-6 flex justify-end gap-3">
+                     {(isConfirm || isPrompt) && (
+                       <button
+                         type="button"
+                         class="button-secondary"
+                         onClick={() => dismiss(false, payload)}
+                       >
+                         {cancelLabel}
+                       </button>
+                     )}
+                     <button
+                       type="button"
+                       class="button-primary"
+                       ref={(el) => {
+                         primaryButtonRef = el
+                       }}
+                       onClick={() => dismiss(true, payload, inputValue())}
+                     >
+                       {confirmLabel}
+                     </button>
+                   </div>
                 </Dialog.Content>
               </div>
             </Dialog.Portal>

packages/ui/src/components/instance/instance-shell2.tsx

@@ -39,8 +39,7 @@ import {
 import { keyboardRegistry, type KeyboardShortcut } from "../../lib/keyboard-registry"
 import { messageStoreBus } from "../../stores/message-v2/bus"
 import { clearSessionRenderCache } from "../message-block"
-import { buildCustomCommandEntries } from "../../lib/command-utils"
-import { getCommands as getInstanceCommands } from "../../stores/commands"
+
 import { isOpen as isCommandPaletteOpen, hideCommandPalette, showCommandPalette } from "../../stores/command-palette"
 import SessionList from "../session-list"
 import KeyboardHint from "../keyboard-hint"
@@ -50,6 +49,8 @@ import InstanceServiceStatus from "../instance-service-status"
 import AgentSelector from "../agent-selector"
 import ModelSelector from "../model-selector"
 import CommandPalette from "../command-palette"
+import PermissionNotificationBanner from "../permission-notification-banner"
+import PermissionApprovalModal from "../permission-approval-modal"
 import Kbd from "../kbd"
 import { TodoListView } from "../tool-call/renderers/todo"
 import ContextUsagePanel from "../session/context-usage-panel"
@@ -141,6 +142,7 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
   ])
   const [selectedBackgroundProcess, setSelectedBackgroundProcess] = createSignal<BackgroundProcess | null>(null)
   const [showBackgroundOutput, setShowBackgroundOutput] = createSignal(false)
+  const [permissionModalOpen, setPermissionModalOpen] = createSignal(false)
 
   const messageStore = createMemo(() => messageStoreBus.getOrCreate(props.instance.id))
 
@@ -373,9 +375,7 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
     }
   }
 
-  const customCommands = createMemo(() => buildCustomCommandEntries(props.instance.id, getInstanceCommands(props.instance.id)))
-
-  const instancePaletteCommands = createMemo(() => [...props.paletteCommands(), ...customCommands()])
+  const instancePaletteCommands = createMemo(() => props.paletteCommands())
   const paletteOpen = createMemo(() => isCommandPaletteOpen(props.instance.id))
 
   const keyboardShortcuts = createMemo(() =>
@@ -654,7 +654,7 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
   })
 
   type DrawerViewState = "pinned" | "floating-open" | "floating-closed"
- 
+
 
   const leftDrawerState = createMemo<DrawerViewState>(() => {
     if (leftPinned()) return "pinned"
@@ -695,7 +695,7 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
 
 
 
-   const pinLeftDrawer = () => {
+  const pinLeftDrawer = () => {
     blurIfInside(leftDrawerContentEl())
     batch(() => {
       setLeftPinned(true)
@@ -814,18 +814,18 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
             </Show>
           </div>
         </div>
-          <div class="flex items-center gap-2">
-            <Show when={!isPhoneLayout()}>
-              <IconButton
-                size="small"
-                color="inherit"
-                aria-label={leftPinned() ? "Unpin left drawer" : "Pin left drawer"}
-                onClick={() => (leftPinned() ? unpinLeftDrawer() : pinLeftDrawer())}
-              >
-                {leftPinned() ? <PushPinIcon fontSize="small" /> : <PushPinOutlinedIcon fontSize="small" />}
-              </IconButton>
-            </Show>
-          </div>
+        <div class="flex items-center gap-2">
+          <Show when={!isPhoneLayout()}>
+            <IconButton
+              size="small"
+              color="inherit"
+              aria-label={leftPinned() ? "Unpin left drawer" : "Pin left drawer"}
+              onClick={() => (leftPinned() ? unpinLeftDrawer() : pinLeftDrawer())}
+            >
+              {leftPinned() ? <PushPinIcon fontSize="small" /> : <PushPinOutlinedIcon fontSize="small" />}
+            </IconButton>
+          </Show>
+        </div>
 
       </div>
 
@@ -1222,6 +1222,10 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
                   </IconButton>
 
                   <div class="flex flex-wrap items-center gap-1 justify-center">
+                    <PermissionNotificationBanner
+                      instanceId={props.instance.id}
+                      onClick={() => setPermissionModalOpen(true)}
+                    />
                     <button
                       type="button"
                       class="connection-status-button px-2 py-0.5 text-xs"
@@ -1240,6 +1244,8 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
                     >
                       <span class="status-dot" />
                     </span>
+
+
                   </div>
 
                   <IconButton
@@ -1268,46 +1274,52 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
               </div>
             }
           >
-             <div class="session-toolbar-left flex items-center gap-3 min-w-0">
-               <IconButton
-                 ref={setLeftToggleButtonEl}
-                 color="inherit"
-                 onClick={handleLeftAppBarButtonClick}
-                 aria-label={leftAppBarButtonLabel()}
-                 size="small"
-                 aria-expanded={leftDrawerState() !== "floating-closed"}
-                 disabled={leftDrawerState() === "pinned"}
-               >
-                 {leftAppBarButtonIcon()}
-               </IconButton>
+            <div class="session-toolbar-left flex items-center gap-3 min-w-0">
+              <IconButton
+                ref={setLeftToggleButtonEl}
+                color="inherit"
+                onClick={handleLeftAppBarButtonClick}
+                aria-label={leftAppBarButtonLabel()}
+                size="small"
+                aria-expanded={leftDrawerState() !== "floating-closed"}
+                disabled={leftDrawerState() === "pinned"}
+              >
+                {leftAppBarButtonIcon()}
+              </IconButton>
 
-               <Show when={!showingInfoView()}>
-                 <div class="inline-flex items-center gap-1 rounded-full border border-base px-2 py-0.5 text-xs text-primary">
-                   <span class="uppercase text-[10px] tracking-wide text-primary/70">Used</span>
-                   <span class="font-semibold text-primary">{formattedUsedTokens()}</span>
-                 </div>
-                 <div class="inline-flex items-center gap-1 rounded-full border border-base px-2 py-0.5 text-xs text-primary">
-                   <span class="uppercase text-[10px] tracking-wide text-primary/70">Avail</span>
-                   <span class="font-semibold text-primary">{formattedAvailableTokens()}</span>
-                 </div>
-               </Show>
-             </div>
+              <Show when={!showingInfoView()}>
+                <div class="inline-flex items-center gap-1 rounded-full border border-base px-2 py-0.5 text-xs text-primary">
+                  <span class="uppercase text-[10px] tracking-wide text-primary/70">Used</span>
+                  <span class="font-semibold text-primary">{formattedUsedTokens()}</span>
+                </div>
+                <div class="inline-flex items-center gap-1 rounded-full border border-base px-2 py-0.5 text-xs text-primary">
+                  <span class="uppercase text-[10px] tracking-wide text-primary/70">Avail</span>
+                  <span class="font-semibold text-primary">{formattedAvailableTokens()}</span>
+                </div>
+              </Show>
+            </div>
 
 
-              <div class="session-toolbar-center flex-1 flex items-center justify-center gap-2 min-w-[160px]">
-                <button
-                  type="button"
-                  class="connection-status-button px-2 py-0.5 text-xs"
-                  onClick={handleCommandPaletteClick}
-                  aria-label="Open command palette"
-                  style={{ flex: "0 0 auto", width: "auto" }}
-                >
-                  Command Palette
-                </button>
-                <span class="connection-status-shortcut-hint">
-                  <Kbd shortcut="cmd+shift+p" />
-                </span>
-              </div>
+            <div class="session-toolbar-center flex-1 flex items-center justify-center gap-2 min-w-[160px]">
+              <PermissionNotificationBanner
+                instanceId={props.instance.id}
+                onClick={() => setPermissionModalOpen(true)}
+              />
+              <button
+                type="button"
+                class="connection-status-button px-2 py-0.5 text-xs"
+                onClick={handleCommandPaletteClick}
+                aria-label="Open command palette"
+                style={{ flex: "0 0 auto", width: "auto" }}
+              >
+                Command Palette
+              </button>
+              <span class="connection-status-shortcut-hint">
+                <Kbd shortcut="cmd+shift+p" />
+              </span>
+
+
+            </div>
 
 
             <div class="session-toolbar-right flex items-center gap-3">
@@ -1429,6 +1441,12 @@ const InstanceShell2: Component<InstanceShellProps> = (props) => {
         process={selectedBackgroundProcess()}
         onClose={closeBackgroundOutput}
       />
+
+      <PermissionApprovalModal
+        instanceId={props.instance.id}
+        isOpen={permissionModalOpen()}
+        onClose={() => setPermissionModalOpen(false)}
+      />
     </>
   )
 }

packages/ui/src/components/message-timeline.tsx

@@ -5,7 +5,7 @@ import type { ClientPart } from "../types/message"
 import type { MessageRecord } from "../stores/message-v2/types"
 import { buildRecordDisplayData } from "../stores/message-v2/record-display-cache"
 import { getToolIcon } from "./tool-call/utils"
-import { User as UserIcon, Bot as BotIcon, FoldVertical } from "lucide-solid"
+import { User as UserIcon, Bot as BotIcon, FoldVertical, ShieldAlert } from "lucide-solid"
 
 export type TimelineSegmentType = "user" | "assistant" | "tool" | "compaction"
 
@@ -17,6 +17,7 @@ export interface TimelineSegment {
   tooltip: string
   shortLabel?: string
   variant?: "auto" | "manual"
+  toolPartIds?: string[]
 }
 
 interface MessageTimelineProps {
@@ -47,6 +48,7 @@ interface PendingSegment {
   toolTitles: string[]
   toolTypeLabels: string[]
   toolIcons: string[]
+  toolPartIds: string[]
   hasPrimaryText: boolean
 }
 
@@ -179,6 +181,7 @@ export function buildTimelineSegments(instanceId: string, record: MessageRecord)
       label,
       tooltip,
       shortLabel,
+      toolPartIds: isToolSegment ? pending.toolPartIds : undefined,
     })
     segmentIndex += 1
     pending = null
@@ -187,7 +190,7 @@ export function buildTimelineSegments(instanceId: string, record: MessageRecord)
   const ensureSegment = (type: TimelineSegmentType): PendingSegment => {
     if (!pending || pending.type !== type) {
       flushPending()
-      pending = { type, texts: [], reasoningTexts: [], toolTitles: [], toolTypeLabels: [], toolIcons: [], hasPrimaryText: type !== "assistant" }
+      pending = { type, texts: [], reasoningTexts: [], toolTitles: [], toolTypeLabels: [], toolIcons: [], toolPartIds: [], hasPrimaryText: type !== "assistant" }
     }
     return pending!
   }
@@ -204,6 +207,9 @@ export function buildTimelineSegments(instanceId: string, record: MessageRecord)
       target.toolTitles.push(getToolTitle(toolPart))
       target.toolTypeLabels.push(getToolTypeLabel(toolPart))
       target.toolIcons.push(getToolIcon(typeof toolPart.tool === "string" ? toolPart.tool : "tool"))
+      if (typeof toolPart.id === "string" && toolPart.id.length > 0) {
+        target.toolPartIds.push(toolPart.id)
+      }
       continue
     }
 
@@ -359,9 +365,25 @@ const MessageTimeline: Component<MessageTimelineProps> = (props) => {
         {(segment) => {
           onCleanup(() => buttonRefs.delete(segment.id))
           const isActive = () => props.activeMessageId === segment.messageId
-          const isHidden = () => segment.type === "tool" && !(showTools() || isActive())
+
+          const hasActivePermission = () => {
+            if (segment.type !== "tool") return false
+            const partIds = segment.toolPartIds ?? []
+            if (partIds.length === 0) return false
+            for (const partId of partIds) {
+              const permissionState = store().getPermissionState(segment.messageId, partId)
+              if (permissionState?.active) return true
+            }
+            return false
+          }
+
+          const isHidden = () => segment.type === "tool" && !(showTools() || isActive() || hasActivePermission())
+
            const shortLabelContent = () => {
              if (segment.type === "tool") {
+               if (hasActivePermission()) {
+                 return <ShieldAlert class="message-timeline-icon" aria-hidden="true" />
+               }
                return segment.shortLabel ?? getToolIcon("tool")
              }
              if (segment.type === "compaction") {
@@ -378,7 +400,7 @@ const MessageTimeline: Component<MessageTimelineProps> = (props) => {
                ref={(el) => registerButtonRef(segment.id, el)}
                type="button"
                data-variant={segment.variant}
-               class={`message-timeline-segment message-timeline-${segment.type} ${segment.type === "compaction" ? `message-timeline-compaction-${segment.variant ?? "manual"}` : ""} ${isActive() ? "message-timeline-segment-active" : ""} ${isHidden() ? "message-timeline-segment-hidden" : ""}`}
+               class={`message-timeline-segment message-timeline-${segment.type} ${hasActivePermission() ? "message-timeline-segment-permission" : ""} ${segment.type === "compaction" ? `message-timeline-compaction-${segment.variant ?? "manual"}` : ""} ${isActive() ? "message-timeline-segment-active" : ""} ${isHidden() ? "message-timeline-segment-hidden" : ""}`}
 
               aria-current={isActive() ? "true" : undefined}
               aria-hidden={isHidden() ? "true" : undefined}

packages/ui/src/components/permission-approval-modal.tsx

@@ -0,0 +1,244 @@
+import { For, Show, createMemo, createSignal, createEffect, onCleanup, type Component } from "solid-js"
+import type { PermissionRequestLike } from "../types/permission"
+import { getPermissionCallId, getPermissionDisplayTitle, getPermissionKind, getPermissionMessageId, getPermissionSessionId } from "../types/permission"
+import { activePermissionId, getPermissionQueue } from "../stores/instances"
+import { loadMessages, setActiveSession } from "../stores/sessions"
+import { messageStoreBus } from "../stores/message-v2/bus"
+import ToolCall from "./tool-call"
+
+interface PermissionApprovalModalProps {
+  instanceId: string
+  isOpen: boolean
+  onClose: () => void
+}
+
+type ResolvedToolCall = {
+  messageId: string
+  sessionId: string
+  toolPart: Extract<import("../types/message").ClientPart, { type: "tool" }>
+  messageVersion: number
+  partVersion: number
+}
+
+function resolveToolCallFromPermission(
+  instanceId: string,
+  permission: PermissionRequestLike,
+): ResolvedToolCall | null {
+  const sessionId = getPermissionSessionId(permission)
+  const messageId = getPermissionMessageId(permission)
+  if (!sessionId || !messageId) return null
+
+  const store = messageStoreBus.getInstance(instanceId)
+  if (!store) return null
+
+  const record = store.getMessage(messageId)
+  if (!record) return null
+
+  const metadata = ((permission as any).metadata || {}) as Record<string, unknown>
+  const directPartId =
+    (permission as any).partID ??
+    (permission as any).partId ??
+    (metadata as any).partID ??
+    (metadata as any).partId ??
+    undefined
+
+  const callId = getPermissionCallId(permission)
+
+  const findToolPart = (partId: string) => {
+    const partRecord = record.parts?.[partId]
+    const part = partRecord?.data
+    if (!part || part.type !== "tool") return null
+    return {
+      toolPart: part as ResolvedToolCall["toolPart"],
+      partVersion: partRecord.revision ?? 0,
+    }
+  }
+
+  if (typeof directPartId === "string" && directPartId.length > 0) {
+    const resolved = findToolPart(directPartId)
+    if (resolved) {
+      return {
+        messageId,
+        sessionId,
+        toolPart: resolved.toolPart,
+        messageVersion: record.revision,
+        partVersion: resolved.partVersion,
+      }
+    }
+  }
+
+  if (callId) {
+    for (const partId of record.partIds) {
+      const partRecord = record.parts?.[partId]
+      const part = partRecord?.data as any
+      if (!part || part.type !== "tool") continue
+      const partCallId = part.callID ?? part.callId ?? part.toolCallID ?? part.toolCallId ?? undefined
+      if (partCallId === callId && typeof part.id === "string" && part.id.length > 0) {
+        return {
+          messageId,
+          sessionId,
+          toolPart: part as ResolvedToolCall["toolPart"],
+          messageVersion: record.revision,
+          partVersion: partRecord.revision ?? 0,
+        }
+      }
+    }
+  }
+
+  return null
+}
+
+const PermissionApprovalModal: Component<PermissionApprovalModalProps> = (props) => {
+  const [loadingSession, setLoadingSession] = createSignal<string | null>(null)
+
+  const queue = createMemo(() => getPermissionQueue(props.instanceId))
+  const activePermId = createMemo(() => activePermissionId().get(props.instanceId) ?? null)
+
+  const orderedQueue = createMemo(() => {
+    const current = queue()
+    const activeId = activePermId()
+    if (!activeId) return current
+    const index = current.findIndex((entry) => entry.id === activeId)
+    if (index <= 0) return current
+    const active = current[index]
+    if (!active) return current
+    return [active, ...current.slice(0, index), ...current.slice(index + 1)]
+  })
+
+  const hasPermissions = createMemo(() => queue().length > 0)
+
+  const closeOnEscape = (event: KeyboardEvent) => {
+    if (event.key === "Escape") {
+      event.preventDefault()
+      props.onClose()
+    }
+  }
+
+  createEffect(() => {
+    if (!props.isOpen) return
+    document.addEventListener("keydown", closeOnEscape)
+    onCleanup(() => document.removeEventListener("keydown", closeOnEscape))
+  })
+
+  function handleBackdropClick(event: MouseEvent) {
+    if (event.target === event.currentTarget) {
+      props.onClose()
+    }
+  }
+
+  async function handleLoadSession(sessionId: string) {
+    if (!sessionId) return
+    setLoadingSession(sessionId)
+    try {
+      await loadMessages(props.instanceId, sessionId)
+    } finally {
+      setLoadingSession((current) => (current === sessionId ? null : current))
+    }
+  }
+
+  function handleGoToSession(sessionId: string) {
+    if (!sessionId) return
+    setActiveSession(props.instanceId, sessionId)
+    props.onClose()
+  }
+
+  return (
+    <Show when={props.isOpen}>
+      <div class="permission-center-modal-backdrop" onClick={handleBackdropClick}>
+        <div class="permission-center-modal" role="dialog" aria-modal="true" aria-labelledby="permission-center-title">
+          <div class="permission-center-modal-header">
+            <div class="permission-center-modal-title-row">
+              <h2 id="permission-center-title" class="permission-center-modal-title">
+                Permissions
+              </h2>
+              <Show when={queue().length > 0}>
+                <span class="permission-center-modal-count">{queue().length}</span>
+              </Show>
+            </div>
+            <button type="button" class="permission-center-modal-close" onClick={props.onClose} aria-label="Close">
+              ✕
+            </button>
+          </div>
+
+          <div class="permission-center-modal-body">
+            <Show when={hasPermissions()} fallback={<div class="permission-center-empty">No pending permissions.</div>}>
+              <div class="permission-center-list" role="list">
+                <For each={orderedQueue()}>
+                  {(permission) => {
+                    const sessionId = getPermissionSessionId(permission) || ""
+                    const isActive = () => permission.id === activePermId()
+                    const resolved = createMemo(() => resolveToolCallFromPermission(props.instanceId, permission))
+
+                    const showFallback = () => !resolved()
+
+                    return (
+                      <div
+                        class={`permission-center-item${isActive() ? " permission-center-item-active" : ""}`}
+                        role="listitem"
+                      >
+                        <div class="permission-center-item-header">
+                          <div class="permission-center-item-heading">
+                            <span class="permission-center-item-kind">{getPermissionKind(permission)}</span>
+                            <Show when={isActive()}>
+                              <span class="permission-center-item-chip">Active</span>
+                            </Show>
+                          </div>
+
+                          <div class="permission-center-item-actions">
+                            <button
+                              type="button"
+                              class="permission-center-item-action"
+                              onClick={() => handleGoToSession(sessionId)}
+                            >
+                              Go to Session
+                            </button>
+                            <Show when={showFallback()}>
+                              <button
+                                type="button"
+                                class="permission-center-item-action"
+                                disabled={loadingSession() === sessionId}
+                                onClick={() => handleLoadSession(sessionId)}
+                              >
+                                {loadingSession() === sessionId ? "Loading…" : "Load Session"}
+                              </button>
+                            </Show>
+                          </div>
+                        </div>
+
+                        <Show
+                          when={resolved()}
+                          fallback={
+                            <div class="permission-center-fallback">
+                              <div class="permission-center-fallback-title">
+                                <code>{getPermissionDisplayTitle(permission)}</code>
+                              </div>
+                              <div class="permission-center-fallback-hint">Load session for more information.</div>
+                            </div>
+                          }
+                        >
+                          {(data) => (
+                            <ToolCall
+                              toolCall={data().toolPart}
+                              toolCallId={data().toolPart.id}
+                              messageId={data().messageId}
+                              messageVersion={data().messageVersion}
+                              partVersion={data().partVersion}
+                              instanceId={props.instanceId}
+                              sessionId={data().sessionId}
+                            />
+                          )}
+                        </Show>
+                      </div>
+                    )
+                  }}
+                </For>
+              </div>
+            </Show>
+          </div>
+        </div>
+      </div>
+    </Show>
+  )
+}
+
+export default PermissionApprovalModal

packages/ui/src/components/permission-notification-banner.tsx

@@ -0,0 +1,36 @@
+import { Show, createMemo, type Component } from "solid-js"
+import { ShieldAlert } from "lucide-solid"
+import { getPermissionQueueLength } from "../stores/instances"
+
+interface PermissionNotificationBannerProps {
+  instanceId: string
+  onClick: () => void
+}
+
+const PermissionNotificationBanner: Component<PermissionNotificationBannerProps> = (props) => {
+  const queueLength = createMemo(() => getPermissionQueueLength(props.instanceId))
+  const hasPermissions = createMemo(() => queueLength() > 0)
+  const label = createMemo(() => {
+    const count = queueLength()
+    return `${count} permission${count === 1 ? "" : "s"} pending approval`
+  })
+
+  return (
+    <Show when={hasPermissions()}>
+      <button
+        type="button"
+        class="permission-center-trigger"
+        onClick={props.onClick}
+        aria-label={label()}
+        title={label()}
+      >
+        <ShieldAlert class="permission-center-icon" aria-hidden="true" />
+        <span class="permission-center-count" aria-hidden="true">
+          {queueLength() > 9 ? "9+" : queueLength()}
+        </span>
+      </button>
+    </Show>
+  )
+}
+
+export default PermissionNotificationBanner

packages/ui/src/components/prompt-input.tsx

@@ -7,9 +7,11 @@ import { resolvePastedPlaceholders } from "../lib/prompt-placeholders"
 import { createFileAttachment, createTextAttachment, createAgentAttachment } from "../types/attachment"
 import type { Attachment } from "../types/attachment"
 import type { Agent } from "../types/session"
+import type { Command as SDKCommand } from "@opencode-ai/sdk/v2"
 import Kbd from "./kbd"
 import { getActiveInstance } from "../stores/instances"
-import { agents, getSessionDraftPrompt, setSessionDraftPrompt, clearSessionDraftPrompt } from "../stores/sessions"
+import { agents, getSessionDraftPrompt, setSessionDraftPrompt, clearSessionDraftPrompt, executeCustomCommand } from "../stores/sessions"
+import { getCommands } from "../stores/commands"
 import { showAlertDialog } from "../stores/alerts"
 import { getLogger } from "../lib/logger"
 const log = getLogger("actions")
@@ -36,6 +38,7 @@ export default function PromptInput(props: PromptInputProps) {
   const [historyDraft, setHistoryDraft] = createSignal<string | null>(null)
   const [, setIsFocused] = createSignal(false)
   const [showPicker, setShowPicker] = createSignal(false)
+  const [pickerMode, setPickerMode] = createSignal<"mention" | "command">("mention")
   const [searchQuery, setSearchQuery] = createSignal("")
   const [atPosition, setAtPosition] = createSignal<number | null>(null)
   const [isDragging, setIsDragging] = createSignal(false)
@@ -560,14 +563,28 @@ export default function PromptInput(props: PromptInputProps) {
     const currentAttachments = attachments()
     if (props.disabled || (!text && currentAttachments.length === 0)) return
 
-    const resolvedPrompt = resolvePastedPlaceholders(text, currentAttachments)
     const isShellMode = mode() === "shell"
 
+    // Slash command routing (match OpenCode TUI): only run if the command exists.
+    const isSlashCandidate = !isShellMode && text.startsWith("/")
+    const firstSpace = isSlashCandidate ? text.indexOf(" ") : -1
+    const commandToken = isSlashCandidate ? (firstSpace === -1 ? text : text.slice(0, firstSpace)) : ""
+    const commandName = isSlashCandidate ? commandToken.slice(1) : ""
+    const commandArgs = isSlashCandidate ? (firstSpace === -1 ? "" : text.slice(firstSpace + 1).trimStart()) : ""
+
+    const isKnownSlashCommand =
+      isSlashCandidate &&
+      commandName.length > 0 &&
+      getCommands(props.instanceId).some((cmd) => cmd.name === commandName)
+
+    const resolvedPrompt = isKnownSlashCommand ? text : resolvePastedPlaceholders(text, currentAttachments)
+    const historyEntry = resolvedPrompt
+
     const refreshHistory = async () => {
       try {
-        await addToHistory(props.instanceFolder, resolvedPrompt)
+        await addToHistory(props.instanceFolder, historyEntry)
         setHistory((prev) => {
-          const next = [resolvedPrompt, ...prev]
+          const next = [historyEntry, ...prev]
           if (next.length > HISTORY_LIMIT) {
             next.length = HISTORY_LIMIT
           }
@@ -580,12 +597,25 @@ export default function PromptInput(props: PromptInputProps) {
     }
 
     clearPrompt()
-    clearAttachments(props.instanceId, props.sessionId)
-    setIgnoredAtPositions(new Set<number>())
-    setPasteCount(0)
-    setImageCount(0)
+
+    // Ignore attachments for slash commands, but keep them for next prompt.
+    if (!isKnownSlashCommand) {
+      clearAttachments(props.instanceId, props.sessionId)
+      setPasteCount(0)
+      setImageCount(0)
+      setIgnoredAtPositions(new Set<number>())
+    } else {
+      syncAttachmentCounters("", currentAttachments)
+      setIgnoredAtPositions(new Set<number>())
+    }
+
     setHistoryDraft(null)
 
+    if (isKnownSlashCommand) {
+      // Record attempted slash commands even if execution fails.
+      void refreshHistory()
+    }
+ 
     try {
       if (isShellMode) {
         if (props.onRunShell) {
@@ -593,10 +623,14 @@ export default function PromptInput(props: PromptInputProps) {
         } else {
           await props.onSend(resolvedPrompt, [])
         }
+      } else if (isKnownSlashCommand) {
+        await executeCustomCommand(props.instanceId, props.sessionId, commandName, commandArgs)
       } else {
         await props.onSend(resolvedPrompt, currentAttachments)
       }
-      void refreshHistory()
+      if (!isKnownSlashCommand) {
+        void refreshHistory()
+      }
     } catch (error) {
       log.error("Failed to send message:", error)
       showAlertDialog("Failed to send message", {
@@ -677,11 +711,27 @@ export default function PromptInput(props: PromptInputProps) {
     setHistoryDraft(null)
 
     const cursorPos = target.selectionStart
+
+    // Slash command picker (only when editing the command token: "/<query>")
+    if (value.startsWith("/") && cursorPos >= 1) {
+      const firstWhitespaceIndex = value.slice(1).search(/\s/)
+      const tokenEnd = firstWhitespaceIndex === -1 ? value.length : firstWhitespaceIndex + 1
+
+      if (cursorPos <= tokenEnd) {
+        setPickerMode("command")
+        setAtPosition(0)
+        setSearchQuery(value.substring(1, cursorPos))
+        setShowPicker(true)
+        return
+      }
+    }
+
     const textBeforeCursor = value.substring(0, cursorPos)
     const lastAtIndex = textBeforeCursor.lastIndexOf("@")
 
     const previousAtPosition = atPosition()
 
+
     if (lastAtIndex === -1) {
       setIgnoredAtPositions(new Set<number>())
     } else if (previousAtPosition !== null && lastAtIndex !== previousAtPosition) {
@@ -698,6 +748,7 @@ export default function PromptInput(props: PromptInputProps) {
 
       if (!hasSpace && cursorPos === lastAtIndex + textAfterAt.length + 1) {
         if (!ignoredAtPositions().has(lastAtIndex)) {
+          setPickerMode("mention")
           setAtPosition(lastAtIndex)
           setSearchQuery(textAfterAt)
           setShowPicker(true)
@@ -716,9 +767,30 @@ export default function PromptInput(props: PromptInputProps) {
       | {
           type: "file"
           file: { path: string; relativePath?: string; isGitFile: boolean; isDirectory?: boolean }
-        },
+        }
+      | { type: "command"; command: SDKCommand },
   ) {
-    if (item.type === "agent") {
+    if (item.type === "command") {
+      const name = item.command.name
+      const currentPrompt = prompt()
+
+      const afterSlash = currentPrompt.slice(1)
+      const firstWhitespaceIndex = afterSlash.search(/\s/)
+      const tokenEnd = firstWhitespaceIndex === -1 ? currentPrompt.length : firstWhitespaceIndex + 1
+
+      const before = ""
+      const after = currentPrompt.substring(tokenEnd)
+      const newPrompt = before + `/${name} ` + after
+      setPrompt(newPrompt)
+
+      setTimeout(() => {
+        if (textareaRef) {
+          const newCursorPos = `/${name} `.length
+          textareaRef.setSelectionRange(newCursorPos, newCursorPos)
+          textareaRef.focus()
+        }
+      }, 0)
+    } else if (item.type === "agent") {
       const agentName = item.agent.name
       const existingAttachments = attachments()
       const alreadyAttached = existingAttachments.some(
@@ -822,7 +894,7 @@ export default function PromptInput(props: PromptInputProps) {
 
   function handlePickerClose() {
     const pos = atPosition()
-    if (pos !== null) {
+    if (pickerMode() === "mention" && pos !== null) {
       setIgnoredAtPositions((prev) => new Set(prev).add(pos))
     }
     setShowPicker(false)
@@ -959,6 +1031,7 @@ export default function PromptInput(props: PromptInputProps) {
   }
  
   const shellHint = () => (mode() === "shell" ? { key: "Esc", text: "to exit shell mode" } : { key: "!", text: "for shell mode" })
+  const commandHint = () => ({ key: "/", text: "for commands" })
 
   const shouldShowOverlay = () => prompt().length === 0
 
@@ -981,9 +1054,11 @@ export default function PromptInput(props: PromptInputProps) {
         <Show when={showPicker() && instance()}>
           <UnifiedPicker
             open={showPicker()}
+            mode={pickerMode()}
             onClose={handlePickerClose}
             onSelect={handlePickerSelect}
             agents={instanceAgents()}
+            commands={getCommands(props.instanceId)}
             instanceClient={instance()!.client}
             searchQuery={searchQuery()}
             textareaRef={textareaRef}
@@ -1149,6 +1224,11 @@ export default function PromptInput(props: PromptInputProps) {
                       <span class="prompt-overlay-text">
                         • <Kbd>{shellHint().key}</Kbd> {shellHint().text}
                       </span>
+                      <Show when={mode() !== "shell"}>
+                        <span class="prompt-overlay-text">
+                          • <Kbd>{commandHint().key}</Kbd> {commandHint().text}
+                        </span>
+                      </Show>
                       <Show when={mode() === "shell"}>
                         <span class="prompt-overlay-shell-active">Shell mode active</span>
                       </Show>

packages/ui/src/components/unified-picker.tsx

@@ -1,5 +1,6 @@
-import { Component, createSignal, createEffect, For, Show, onCleanup } from "solid-js"
+import { Component, createSignal, createEffect, createMemo, For, Show, onCleanup } from "solid-js"
 import type { Agent } from "../types/session"
+import type { Command as SDKCommand } from "@opencode-ai/sdk/v2"
 import type { OpencodeClient } from "@opencode-ai/sdk/v2/client"
 import { serverApi } from "../lib/api-client"
 import { getLogger } from "../lib/logger"
@@ -67,13 +68,18 @@ function mapEntriesToFileItems(entries: { path: string; type: "file" | "director
   })
 }
 
-type PickerItem = { type: "agent"; agent: Agent } | { type: "file"; file: FileItem }
+type PickerItem =
+  | { type: "agent"; agent: Agent }
+  | { type: "file"; file: FileItem }
+  | { type: "command"; command: SDKCommand }
 
 interface UnifiedPickerProps {
   open: boolean
+  mode?: "mention" | "command"
   onSelect: (item: PickerItem) => void
   onClose: () => void
   agents: Agent[]
+  commands?: SDKCommand[]
   instanceClient: OpencodeClient | null
   searchQuery: string
   textareaRef?: HTMLTextAreaElement
@@ -81,6 +87,8 @@ interface UnifiedPickerProps {
 }
 
 const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
+  const mode = () => props.mode ?? "mention"
+
   const [files, setFiles] = createSignal<FileItem[]>([])
   const [filteredAgents, setFilteredAgents] = createSignal<Agent[]>([])
   const [selectedIndex, setSelectedIndex] = createSignal(0)
@@ -246,6 +254,11 @@ const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
       return
     }
 
+    if (mode() !== "mention") {
+      // Command mode doesn't use file snapshots.
+      return
+    }
+
     const workspaceChanged = lastWorkspaceId !== props.workspaceId
     const queryChanged = lastQuery !== props.searchQuery
 
@@ -262,6 +275,7 @@ const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
 
   createEffect(() => {
     if (!props.open) return
+    if (mode() !== "mention") return
 
     const query = props.searchQuery.toLowerCase()
     const filtered = query
@@ -275,8 +289,25 @@ const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
     setFilteredAgents(filtered)
   })
 
+  const filteredCommands = createMemo(() => {
+    if (mode() !== "command") return []
+    const q = props.searchQuery.trim().toLowerCase()
+    const source = props.commands ?? []
+    if (!q) return source
+    return source.filter((cmd) => {
+      const nameMatch = cmd.name.toLowerCase().includes(q)
+      const descMatch = (cmd.description ?? "").toLowerCase().includes(q)
+      return nameMatch || descMatch
+    })
+  })
+
   const allItems = (): PickerItem[] => {
     const items: PickerItem[] = []
+    if (mode() === "command") {
+      filteredCommands().forEach((command) => items.push({ type: "command", command }))
+      return items
+    }
+
     filteredAgents().forEach((agent) => items.push({ type: "agent", agent }))
     files().forEach((file) => items.push({ type: "file", file }))
     return items
@@ -329,9 +360,10 @@ const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
     }
   })
 
+  const commandCount = () => filteredCommands().length
   const agentCount = () => filteredAgents().length
   const fileCount = () => files().length
-  const isLoading = () => loadingState() !== "idle"
+  const isLoading = () => mode() === "mention" && loadingState() !== "idle"
   const loadingMessage = () => {
     if (loadingState() === "search") {
       return "Searching..."
@@ -351,7 +383,9 @@ const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
       >
         <div class="dropdown-header">
           <div class="dropdown-header-title">
-            Select Agent or File
+            <Show when={mode() === "command"} fallback={"Select Agent or File"}>
+              Select Command
+            </Show>
             <Show when={isLoading()}>
               <span class="ml-2">{loadingMessage()}</span>
             </Show>
@@ -359,11 +393,41 @@ const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
         </div>
 
         <div ref={scrollContainerRef} class="dropdown-content max-h-60">
-          <Show when={agentCount() === 0 && fileCount() === 0}>
+          <Show when={(mode() === "command" ? commandCount() === 0 : agentCount() === 0 && fileCount() === 0)}>
             <div class="dropdown-empty">No results found</div>
           </Show>
 
-          <Show when={agentCount() > 0}>
+          <Show when={mode() === "command" && commandCount() > 0}>
+            <div class="dropdown-section-header">COMMANDS</div>
+            <For each={filteredCommands()}>
+              {(command) => {
+                const itemIndex = allItems().findIndex((item) => item.type === "command" && item.command.name === command.name)
+                return (
+                  <div
+                    class={`dropdown-item ${itemIndex === selectedIndex() ? "dropdown-item-highlight" : ""}`}
+                    data-picker-selected={itemIndex === selectedIndex()}
+                    onClick={() => handleSelect({ type: "command", command })}
+                  >
+                    <div class="flex items-start gap-2">
+                      <svg class="dropdown-icon-accent h-4 w-4 mt-0.5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16" />
+                      </svg>
+                      <div class="flex-1">
+                        <div class="text-sm font-medium">/{command.name}</div>
+                        <Show when={command.description}>
+                          <div class="mt-0.5 text-xs" style="color: var(--text-muted)">
+                            {(command.description ?? "").length > 80 ? (command.description ?? "").slice(0, 80) + "..." : command.description}
+                          </div>
+                        </Show>
+                      </div>
+                    </div>
+                  </div>
+                )
+              }}
+            </For>
+          </Show>
+
+          <Show when={mode() === "mention" && agentCount() > 0}>
             <div class="dropdown-section-header">
               AGENTS
             </div>
@@ -418,7 +482,7 @@ const UnifiedPicker: Component<UnifiedPickerProps> = (props) => {
             </For>
           </Show>
 
-          <Show when={fileCount() > 0}>
+          <Show when={mode() === "mention" && fileCount() > 0}>
             <div class="dropdown-section-header">
               FILES
             </div>

packages/ui/src/lib/command-utils.ts

@@ -1,6 +1,6 @@
 import type { Command } from "./commands"
 import type { Command as SDKCommand } from "@opencode-ai/sdk"
-import { showAlertDialog } from "../stores/alerts"
+import { showAlertDialog, showPromptDialog } from "../stores/alerts"
 import { activeSessionId, executeCustomCommand } from "../stores/sessions"
 import { getLogger } from "./logger"
 
@@ -11,15 +11,29 @@ export function commandRequiresArguments(template?: string): boolean {
   return /\$(?:\d+|ARGUMENTS)/.test(template)
 }
 
-export function promptForCommandArguments(command: SDKCommand): string | null {
+export async function promptForCommandArguments(command: SDKCommand): Promise<string | null> {
   if (!commandRequiresArguments(command.template)) {
     return ""
   }
-  const input = window.prompt(`Arguments for /${command.name}`, "")
-  if (input === null) {
+
+  try {
+    return await showPromptDialog(`Arguments for /${command.name}`, {
+      title: "Custom command",
+      variant: "info",
+      inputLabel: "Arguments",
+      inputPlaceholder: "e.g. foo bar",
+      inputDefaultValue: "",
+      confirmLabel: "Run",
+      cancelLabel: "Cancel",
+    })
+  } catch (error) {
+    log.error("Failed to prompt for command arguments", error)
+    showAlertDialog("Failed to open arguments prompt.", {
+      title: "Command arguments",
+      variant: "error",
+    })
     return null
   }
-  return input
 }
 
 function formatCommandLabel(name: string): string {
@@ -43,11 +57,11 @@ export function buildCustomCommandEntries(instanceId: string, commands: SDKComma
         })
         return
       }
-      const args = promptForCommandArguments(cmd)
-      if (args === null) {
-        return
-      }
       try {
+        const args = await promptForCommandArguments(cmd)
+        if (args === null) {
+          return
+        }
         await executeCustomCommand(instanceId, sessionId, cmd.name, args)
       } catch (error) {
         log.error("Failed to run custom command", error)

packages/ui/src/stores/alerts.ts

@@ -3,7 +3,7 @@ import { createSignal } from "solid-js"
 export type AlertVariant = "info" | "warning" | "error"
 
 export type AlertDialogState = {
-  type?: "alert" | "confirm"
+  type?: "alert" | "confirm" | "prompt"
   title?: string
   message: string
   detail?: string
@@ -12,7 +12,17 @@ export type AlertDialogState = {
   cancelLabel?: string
   onConfirm?: () => void
   onCancel?: () => void
+
+  // prompt-only
+  inputLabel?: string
+  inputPlaceholder?: string
+  inputDefaultValue?: string
+
+  // confirm-only
   resolve?: (value: boolean) => void
+
+  // prompt-only
+  resolvePrompt?: (value: string | null) => void
 }
 
 const [alertDialogState, setAlertDialogState] = createSignal<AlertDialogState | null>(null)
@@ -39,6 +49,23 @@ export function showConfirmDialog(message: string, options?: Omit<AlertDialogSta
   })
 }
 
+export function showPromptDialog(
+  message: string,
+  options?: Omit<AlertDialogState, "message" | "type" | "resolve" | "resolvePrompt">,
+): Promise<string | null> {
+  const activeElement = typeof document !== "undefined" ? (document.activeElement as HTMLElement | null) : null
+  activeElement?.blur()
+
+  return new Promise<string | null>((resolvePrompt) => {
+    setAlertDialogState({
+      type: "prompt",
+      message,
+      ...options,
+      resolvePrompt,
+    })
+  })
+}
+
 export function dismissAlertDialog() {
   setAlertDialogState(null)
 }

packages/ui/src/stores/instances.ts

@@ -562,6 +562,14 @@ function clearPermissionQueue(instanceId: string): void {
 
 
 
+function setActivePermissionIdForInstance(instanceId: string, permissionId: string): void {
+  setActivePermissionId((prev) => {
+    const next = new Map(prev)
+    next.set(instanceId, permissionId)
+    return next
+  })
+}
+
 async function sendPermissionResponse(
   instanceId: string,
   sessionId: string,
@@ -656,6 +664,7 @@ export {
   removePermissionFromQueue,
   clearPermissionQueue,
   sendPermissionResponse,
+  setActivePermissionIdForInstance,
   disconnectedInstance,
   acknowledgeDisconnectedInstance,
   fetchLspStatus,

packages/ui/src/styles/components/permission-notification.css

@@ -0,0 +1,231 @@
+/* Central permission UI (toolbar + modal).
+   Kept intentionally small; reuse existing tokens. */
+
+.permission-center-trigger {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.25rem;
+  padding: 0.25rem 0.5rem;
+  border-radius: 9999px;
+  border: 1px solid var(--session-status-permission-fg);
+  background-color: var(--session-status-permission-bg);
+  color: var(--session-status-permission-fg);
+  font-size: 0.75rem;
+  font-weight: var(--font-weight-semibold);
+  cursor: pointer;
+  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
+}
+
+.permission-center-trigger:hover,
+.permission-center-trigger:focus-visible {
+  outline: none;
+  background-color: color-mix(in srgb, var(--session-status-permission-bg) 70%, var(--surface-hover));
+  transform: translateY(-1px);
+}
+
+.permission-center-icon {
+  width: 1rem;
+  height: 1rem;
+}
+
+.permission-center-count {
+  line-height: 1;
+}
+
+.permission-center-modal-backdrop {
+  position: fixed;
+  inset: 0;
+  background: color-mix(in srgb, var(--text-inverted) 55%, transparent);
+  backdrop-filter: blur(4px);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 9999;
+  padding: var(--space-lg);
+}
+
+.permission-center-modal {
+  width: min(900px, 100%);
+  max-height: 90vh;
+  display: flex;
+  flex-direction: column;
+  border-radius: var(--radius-xl);
+  border: 1px solid var(--border-base);
+  background: var(--surface-base);
+  box-shadow: var(--panel-shadow, 0 12px 32px rgba(0, 0, 0, 0.25));
+  overflow: hidden;
+}
+
+.permission-center-modal-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--space-md);
+  padding: var(--space-md);
+  border-bottom: 1px solid var(--border-base);
+}
+
+.permission-center-modal-title-row {
+  display: flex;
+  align-items: center;
+  gap: var(--space-sm);
+  min-width: 0;
+}
+
+.permission-center-modal-title {
+  font-size: var(--font-size-lg);
+  font-weight: var(--font-weight-semibold);
+  color: var(--text-primary);
+  margin: 0;
+}
+
+.permission-center-modal-count {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 1.5rem;
+  height: 1.5rem;
+  padding: 0 0.4rem;
+  border-radius: 9999px;
+  background: var(--session-status-permission-bg);
+  color: var(--session-status-permission-fg);
+  border: 1px solid var(--session-status-permission-fg);
+  font-size: var(--font-size-xs);
+  font-weight: var(--font-weight-semibold);
+}
+
+.permission-center-modal-close {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 2rem;
+  height: 2rem;
+  border-radius: var(--radius-sm);
+  border: 1px solid var(--border-base);
+  background: var(--surface-secondary);
+  color: var(--text-primary);
+  cursor: pointer;
+}
+
+.permission-center-modal-close:hover {
+  background: var(--surface-hover);
+}
+
+.permission-center-modal-body {
+  flex: 1;
+  min-height: 0;
+  overflow: auto;
+  padding: var(--space-md);
+}
+
+.permission-center-empty {
+  color: var(--text-secondary);
+  padding: var(--space-lg);
+  text-align: center;
+}
+
+.permission-center-list {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-md);
+}
+
+.permission-center-item {
+  border: 1px solid var(--border-base);
+  border-radius: var(--radius-lg);
+  background: var(--surface-secondary);
+  overflow: hidden;
+}
+
+.permission-center-item-active {
+  border-color: var(--session-status-permission-fg);
+  box-shadow: 0 0 0 1px color-mix(in srgb, var(--session-status-permission-fg) 35%, transparent);
+}
+
+.permission-center-item-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--space-md);
+  padding: var(--space-sm) var(--space-md);
+  border-bottom: 1px solid var(--border-base);
+  background: var(--surface-base);
+}
+
+.permission-center-item-heading {
+  display: flex;
+  align-items: center;
+  gap: var(--space-sm);
+}
+
+.permission-center-item-kind {
+  font-size: var(--font-size-xs);
+  letter-spacing: 0.05em;
+  text-transform: uppercase;
+  color: var(--text-secondary);
+  font-weight: var(--font-weight-semibold);
+}
+
+.permission-center-item-chip {
+  font-size: var(--font-size-xs);
+  font-weight: var(--font-weight-semibold);
+  padding: 0.1rem 0.4rem;
+  border-radius: 9999px;
+  border: 1px solid var(--session-status-permission-fg);
+  background: var(--session-status-permission-bg);
+  color: var(--session-status-permission-fg);
+}
+
+.permission-center-item-actions {
+  display: inline-flex;
+  align-items: center;
+  gap: var(--space-sm);
+}
+
+.permission-center-item-action {
+  padding: 0.25rem 0.5rem;
+  border-radius: var(--radius-sm);
+  border: 1px solid var(--border-base);
+  background: var(--surface-secondary);
+  color: var(--text-primary);
+  font-size: var(--font-size-xs);
+  cursor: pointer;
+}
+
+.permission-center-item-action:hover {
+  background: var(--surface-hover);
+}
+
+.permission-center-item-action:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.permission-center-fallback {
+  padding: var(--space-md);
+}
+
+.permission-center-fallback-title code {
+  font-family: var(--font-family-mono);
+  font-size: var(--font-size-sm);
+  color: var(--text-primary);
+}
+
+.permission-center-fallback-hint {
+  margin-top: var(--space-sm);
+  color: var(--text-secondary);
+  font-size: var(--font-size-sm);
+}
+
+@media (max-width: 720px) {
+  .permission-center-modal-backdrop {
+    padding: 0;
+  }
+
+  .permission-center-modal {
+    width: 100vw;
+    height: 100vh;
+    max-height: none;
+    border-radius: 0;
+  }
+}

packages/ui/src/styles/controls.css

@@ -6,3 +6,4 @@
 @import "./components/env-vars.css";
 @import "./components/directory-browser.css";
 @import "./components/remote-access.css";
+@import "./components/permission-notification.css";

packages/ui/src/styles/messaging/message-timeline.css

@@ -146,6 +146,30 @@
   background-color: var(--surface-secondary);
 }
 
+.message-timeline-segment.message-timeline-segment-permission {
+  border-color: var(--session-status-permission-fg);
+  background-color: var(--session-status-permission-bg);
+  color: var(--session-status-permission-fg);
+}
+
+.message-timeline-segment.message-timeline-segment-permission:hover,
+.message-timeline-segment.message-timeline-segment-permission:focus-visible {
+  background-color: var(--session-status-permission-bg);
+  color: var(--session-status-permission-fg);
+  border-color: var(--session-status-permission-fg);
+  transform: translateY(-1px);
+}
+
+.message-timeline-segment-active.message-timeline-segment-permission,
+.message-timeline-segment-active.message-timeline-segment-permission:hover,
+.message-timeline-segment-active.message-timeline-segment-permission:focus-visible {
+  background-color: var(--session-status-permission-bg) !important;
+  border-color: var(--session-status-permission-fg) !important;
+  color: var(--session-status-permission-fg) !important;
+  transform: none;
+  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.35);
+}
+
 .message-timeline-compaction-auto {
   border-color: var(--session-status-compacting-fg);
   background-color: var(--surface-secondary);