diff --git a/surfaces/gui/src-tauri/Info.plist b/surfaces/gui/src-tauri/Info.plist
index 07237296..a31e6109 100644
--- a/surfaces/gui/src-tauri/Info.plist
+++ b/surfaces/gui/src-tauri/Info.plist
@@ -1,9 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <!-- Merged into the bundle's Info.plist by Tauri. These usage strings appear inside the macOS
-     permission prompts (Desktop/Documents/Downloads/Photos), so a prompt the user didn't expect
-     at least explains itself — the agent's tool runs are what touch these folders, and only when
-     a task needs them. -->
+     permission prompts (Desktop/Documents/Downloads/Photos/Calendars/Reminders), so a prompt the
+     user didn't expect at least explains itself — the agent's tool runs are what touch these, and
+     only when a task needs them.
+
+     Calendars/Reminders (#302): without these keys macOS' TCC blocks EventKit access OUTRIGHT
+     rather than prompting, so a calendar/reminders MCP tool silently fails. macOS 14 split the
+     key: apps built against the 14+ SDK read the ...FullAccessUsageDescription variant, older
+     systems read the legacy key, so both are declared. Like Photos above (and unlike the mic,
+     a hardened-runtime *device* resource that also needs an entitlement), these personal-
+     information resources are gated by the usage string alone on this non-sandboxed app. -->
 <plist version="1.0">
 <dict>
   <key>NSMicrophoneUsageDescription</key>
@@ -16,5 +23,13 @@
   <string>A task you run may need to read or save files in Downloads. OpenWorker never scans this folder on its own.</string>
   <key>NSPhotoLibraryUsageDescription</key>
   <string>A task you run may need to read an image from your photo library. OpenWorker never scans your photos on its own.</string>
+  <key>NSCalendarsUsageDescription</key>
+  <string>A task you run may need to read or manage events in your calendar, for example a calendar MCP tool. OpenWorker never reads your calendar on its own.</string>
+  <key>NSCalendarsFullAccessUsageDescription</key>
+  <string>A task you run may need to read or manage events in your calendar, for example a calendar MCP tool. OpenWorker never reads your calendar on its own.</string>
+  <key>NSRemindersUsageDescription</key>
+  <string>A task you run may need to read or manage your reminders, for example a reminders MCP tool. OpenWorker never reads your reminders on its own.</string>
+  <key>NSRemindersFullAccessUsageDescription</key>
+  <string>A task you run may need to read or manage your reminders, for example a reminders MCP tool. OpenWorker never reads your reminders on its own.</string>
 </dict>
 </plist>