warpdotdev · Chebaleomkar · May 17, 2026 · May 17, 2026
diff --git a/plugins/warp/scripts/on-notification.sh b/plugins/warp/scripts/on-notification.sh
@@ -25,3 +25,6 @@ BODY=$(build_payload "$INPUT" "$NOTIF_TYPE" \
     --arg summary "$MSG")
 
 "$SCRIPT_DIR/warp-notify.sh" "warp://cli-agent" "$BODY"
+
+# Windows fallback: native toast notification (OSC 777 fails on Windows)
+[ -f "$SCRIPT_DIR/win-notify.sh" ] && "$SCRIPT_DIR/win-notify.sh" "$NOTIF_TYPE" "$INPUT"
diff --git a/plugins/warp/scripts/on-permission-request.sh b/plugins/warp/scripts/on-permission-request.sh
@@ -37,3 +37,6 @@ BODY=$(build_payload "$INPUT" "permission_request" \
     --argjson tool_input "$TOOL_INPUT")
 
 "$SCRIPT_DIR/warp-notify.sh" "warp://cli-agent" "$BODY"
+
+# Windows fallback: native toast notification (OSC 777 fails on Windows)
+[ -f "$SCRIPT_DIR/win-notify.sh" ] && "$SCRIPT_DIR/win-notify.sh" "permission_request" "$INPUT"
diff --git a/plugins/warp/scripts/on-stop.sh b/plugins/warp/scripts/on-stop.sh
@@ -71,3 +71,6 @@ BODY=$(build_payload "$INPUT" "stop" \
     --arg transcript_path "$TRANSCRIPT_PATH")
 
 "$SCRIPT_DIR/warp-notify.sh" "warp://cli-agent" "$BODY"
+
+# Windows fallback: native toast notification (OSC 777 fails on Windows)
+[ -f "$SCRIPT_DIR/win-notify.sh" ] && "$SCRIPT_DIR/win-notify.sh" "stop" "$INPUT"
diff --git a/plugins/warp/scripts/warp-notify.sh b/plugins/warp/scripts/warp-notify.sh
@@ -17,5 +17,11 @@ TITLE="${1:-Notification}"
 BODY="${2:-}"
 
 # OSC 777 format: \033]777;notify;<title>;<body>\007
-# Write directly to /dev/tty to ensure it reaches the terminal
-printf '\033]777;notify;%s;%s\007' "$TITLE" "$BODY" > /dev/tty 2>/dev/null || true
+# Try /dev/tty first (macOS/Linux). On Windows, /dev/tty fails inside
+# Claude Code's hook runner because stdio is captured. Fall back to stderr.
+if printf '\033]777;notify;%s;%s\007' "$TITLE" "$BODY" > /dev/tty 2>/dev/null; then
+    exit 0
+fi
+
+# Last resort: stderr (may not reach terminal in sandboxed hook contexts)
+printf '\033]777;notify;%s;%s\007' "$TITLE" "$BODY" >&2 2>/dev/null || true
diff --git a/plugins/warp/scripts/win-notify.sh b/plugins/warp/scripts/win-notify.sh
@@ -0,0 +1,97 @@
+#!/bin/bash
+# Windows-only notification sender with deduplication
+# Usage: win-notify.sh <event_type> <json_input>
+#
+# Only one notification per 8 seconds to prevent duplicates from
+# multiple hooks firing on the same Claude Code event.
+
+# Only run on Windows
+[ -z "$WINDIR" ] && exit 0
+command -v powershell &>/dev/null || exit 0
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+EVENT_TYPE="${1:-unknown}"
+INPUT="${2:-{}}"
+
+# === Deduplication ===
+LOCK_DIR="/tmp/warp-notify-lock"
+if mkdir "$LOCK_DIR" 2>/dev/null; then
+    # We got the lock — we're the first hook to fire
+    # Clean up lock after 8 seconds (background)
+    (sleep 8 && rmdir "$LOCK_DIR" 2>/dev/null) &
+else
+    # Another hook already fired recently — skip
+    exit 0
+fi
+
+# === Extract context ===
+SESSION_ID=$(echo "$INPUT" | jq -r '.session_id // empty' 2>/dev/null)
+CWD=$(echo "$INPUT" | jq -r '.cwd // empty' 2>/dev/null)
+PROJECT=""
+if [ -n "$CWD" ]; then
+    PROJECT=$(basename "$CWD")
+fi
+
+# === Build notification title and body based on event type ===
+case "$EVENT_TYPE" in
+    stop)
+        NOTIF_TITLE="✅ Task Completed"
+        # Try to get the response summary
+        TRANSCRIPT_PATH=$(echo "$INPUT" | jq -r '.transcript_path // empty' 2>/dev/null)
+        RESPONSE=""
+        QUERY=""
+        if [ -n "$TRANSCRIPT_PATH" ] && [ -f "$TRANSCRIPT_PATH" ]; then
+            RESPONSE=$(jq -rs '
+                [.[] | select(.type == "assistant" and .message.content)] | last |
+                [.message.content[] | select(.type == "text") | .text] | join(" ")
+            ' "$TRANSCRIPT_PATH" 2>/dev/null)
+            QUERY=$(jq -rs '
+                [
+                    .[] | select(.type == "user") |
+                    if .message.content | type == "string" then .
+                    elif [.message.content[] | select(.type == "text")] | length > 0 then .
+                    else empty end
+                ] | last |
+                if .message.content | type == "array"
+                then [.message.content[] | select(.type == "text") | .text] | join(" ")
+                else .message.content // empty end
+            ' "$TRANSCRIPT_PATH" 2>/dev/null)
+        fi
+        if [ -n "$RESPONSE" ]; then
+            NOTIF_BODY="${RESPONSE:0:200}"
+        elif [ -n "$QUERY" ]; then
+            NOTIF_BODY="Done: ${QUERY:0:200}"
+        else
+            NOTIF_BODY="Claude finished the task"
+        fi
+        ;;
+    idle_prompt)
+        NOTIF_TITLE="⏳ Input Needed"
+        MSG=$(echo "$INPUT" | jq -r '.message // empty' 2>/dev/null)
+        NOTIF_BODY="${MSG:-Claude is waiting for your input}"
+        ;;
+    permission_request)
+        NOTIF_TITLE="🔐 Permission Required"
+        TOOL_NAME=$(echo "$INPUT" | jq -r '.tool_name // "a tool"' 2>/dev/null)
+        NOTIF_BODY="Claude wants to run: $TOOL_NAME"
+        ;;
+    session_start)
+        # Don't notify on session start — not useful
+        rmdir "$LOCK_DIR" 2>/dev/null
+        exit 0
+        ;;
+    *)
+        NOTIF_TITLE="Claude Code"
+        NOTIF_BODY="Needs your attention"
+        ;;
+esac
+
+# === Add project context ===
+if [ -n "$PROJECT" ]; then
+    NOTIF_TITLE="$NOTIF_TITLE — $PROJECT"
+fi
+
+# === Fire Windows notification ===
+powershell -ExecutionPolicy Bypass -NoProfile -File "$SCRIPT_DIR/win-toast.ps1" \
+    -Title "$NOTIF_TITLE" -Body "$NOTIF_BODY" &>/dev/null &
diff --git a/plugins/warp/scripts/win-toast.ps1 b/plugins/warp/scripts/win-toast.ps1
@@ -0,0 +1,47 @@
+# Windows native toast notification branded as Warp
+# Usage: powershell -ExecutionPolicy Bypass -File win-toast.ps1 -Title "title" -Body "body"
+param(
+    [string]$Title = "Claude Code",
+    [string]$Body = "Task complete"
+)
+
+# --- Register Warp as a notification source (one-time, no admin needed) ---
+$appId = "dev.warp.Warp"
+$regPath = "HKCU:\SOFTWARE\Classes\AppUserModelId\$appId"
+$iconPath = "$env:LOCALAPPDATA\Programs\Warp\icon.ico"
+
+if (-not (Test-Path $regPath)) {
+    New-Item -Path $regPath -Force | Out-Null
+}
+New-ItemProperty -Path $regPath -Name "DisplayName" -Value "Warp" -PropertyType String -Force | Out-Null
+if (Test-Path $iconPath) {
+    New-ItemProperty -Path $regPath -Name "IconUri" -Value $iconPath -PropertyType ExpandString -Force | Out-Null
+}
+
+# --- Load Windows Runtime types ---
+[Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime] | Out-Null
+[Windows.Data.Xml.Dom.XmlDocument, Windows.Data.Xml.Dom, ContentType = WindowsRuntime] | Out-Null
+
+# --- Build toast XML ---
+$logoAttr = ""
+if (Test-Path $iconPath) {
+    $logoAttr = "<image placement=`"appLogoOverride`" src=`"$iconPath`" hint-crop=`"circle`"/>"
+}
+
+$toastXml = @"
+<toast>
+  <visual>
+    <binding template="ToastGeneric">
+      $logoAttr
+      <text>$Title</text>
+      <text>$Body</text>
+    </binding>
+  </visual>
+</toast>
+"@
+
+# --- Show notification ---
+$xml = New-Object Windows.Data.Xml.Dom.XmlDocument
+$xml.LoadXml($toastXml)
+$toast = [Windows.UI.Notifications.ToastNotification]::new($xml)
+[Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier($appId).Show($toast)