diff --git a/packages/app/src/keyboard/keyboard-shortcuts.test.ts b/packages/app/src/keyboard/keyboard-shortcuts.test.ts
index 9da92dab5..5e1c905ec 100644
--- a/packages/app/src/keyboard/keyboard-shortcuts.test.ts
+++ b/packages/app/src/keyboard/keyboard-shortcuts.test.ts
@@ -124,8 +124,8 @@ interface HelpSectionCase {
 describe("keyboard-shortcuts", () => {
   const matchingCases: MatchingShortcutCase[] = [
     {
-      name: "matches Mod+Shift+O to create new agent",
-      event: { key: "O", code: "KeyO", metaKey: true, shiftKey: true },
+      name: "matches Cmd+O to open project",
+      event: { key: "o", code: "KeyO", metaKey: true },
       context: { isMac: true },
       action: "agent.new",
     },
@@ -227,8 +227,8 @@ describe("keyboard-shortcuts", () => {
       action: "workspace.tab.close.current",
     },
     {
-      name: "matches Ctrl+Shift+O to create new agent on non-mac",
-      event: { key: "O", code: "KeyO", ctrlKey: true, shiftKey: true },
+      name: "matches Ctrl+O to open project on non-mac",
+      event: { key: "o", code: "KeyO", ctrlKey: true },
       context: { isMac: false },
       action: "agent.new",
     },
@@ -394,6 +394,16 @@ describe("keyboard-shortcuts", () => {
       name: "does not keep old Alt+Shift+T binding",
       event: { key: "T", code: "KeyT", altKey: true, shiftKey: true },
     },
+    {
+      name: "does not keep old Cmd+Shift+O open-project binding after rebind to Cmd+O",
+      event: { key: "O", code: "KeyO", metaKey: true, shiftKey: true },
+      context: { isMac: true },
+    },
+    {
+      name: "does not keep old Ctrl+Shift+O open-project binding after rebind to Ctrl+O",
+      event: { key: "O", code: "KeyO", ctrlKey: true, shiftKey: true },
+      context: { isMac: false },
+    },
     {
       name: "does not match question-mark shortcut inside editable scopes",
       event: { key: "?", code: "Slash", shiftKey: true },
@@ -580,7 +590,7 @@ describe("keyboard-shortcut help sections", () => {
       name: "uses web defaults for workspace and tab jump",
       context: { isMac: true, isDesktop: false },
       expectedKeys: {
-        "new-agent": ["mod", "shift", "O"],
+        "new-agent": ["mod", "O"],
         "workspace-tab-new": ["mod", "T"],
         "workspace-jump-index": ["alt", "1-9"],
         "workspace-tab-jump-index": ["alt", "shift", "1-9"],
@@ -594,7 +604,7 @@ describe("keyboard-shortcut help sections", () => {
       name: "uses desktop defaults for workspace and tab jump",
       context: { isMac: true, isDesktop: true },
       expectedKeys: {
-        "new-agent": ["mod", "shift", "O"],
+        "new-agent": ["mod", "O"],
         "new-workspace": ["mod", "N"],
         "workspace-tab-new": ["mod", "T"],
         "workspace-jump-index": ["mod", "1-9"],
diff --git a/packages/app/src/keyboard/keyboard-shortcuts.ts b/packages/app/src/keyboard/keyboard-shortcuts.ts
index d7b10f7fc..d865f3ca7 100644
--- a/packages/app/src/keyboard/keyboard-shortcuts.ts
+++ b/packages/app/src/keyboard/keyboard-shortcuts.ts
@@ -121,7 +121,6 @@ const SHORTCUT_HELP_SECTION_LABEL_KEYS: Record<ShortcutSectionId, string> = {
 const SHORTCUT_HELP_LABEL_KEYS: Record<string, string> = {
   "new-agent": "settings.shortcuts.help.openProject",
   "new-workspace": "settings.shortcuts.help.newWorkspace",
-  "new-worktree": "settings.shortcuts.help.newWorktree",
   "archive-worktree": "settings.shortcuts.help.archiveWorktree",
   "workspace-tab-new": "settings.shortcuts.help.newTab",
   "workspace-tab-close-current": "settings.shortcuts.help.closeCurrentTab",
@@ -166,29 +165,33 @@ const SHORTCUT_HELP_NOTE_KEYS: Record<string, string> = {
 // --- Binding definitions ---
 
 const SHORTCUT_BINDINGS: readonly ShortcutBinding[] = [
-  // --- New agent ---
+  // --- Open project ---
+  // Open project moved from Cmd+Shift+O to Cmd+O. The binding ids intentionally
+  // keep their original "cmd-shift-o" / "ctrl-shift-o" names: user shortcut
+  // overrides are keyed by binding id, so renaming them would silently drop a
+  // user's customized Open project shortcut on upgrade.
   {
     id: "agent-new-cmd-shift-o-mac",
     action: "agent.new",
-    combo: "Cmd+Shift+O",
+    combo: "Cmd+O",
     when: { mac: true },
     help: {
       id: "new-agent",
       section: "projects",
       label: "Open project",
-      keys: ["mod", "shift", "O"],
+      keys: ["mod", "O"],
     },
   },
   {
     id: "agent-new-ctrl-shift-o-non-mac",
     action: "agent.new",
-    combo: "Ctrl+Shift+O",
+    combo: "Ctrl+O",
     when: { mac: false, terminal: false },
     help: {
       id: "new-agent",
       section: "projects",
       label: "Open project",
-      keys: ["mod", "shift", "O"],
+      keys: ["mod", "O"],
     },
   },
 
@@ -218,32 +221,6 @@ const SHORTCUT_BINDINGS: readonly ShortcutBinding[] = [
     },
   },
 
-  // --- New worktree ---
-  {
-    id: "worktree-new-cmd-o-mac",
-    action: "worktree.new",
-    combo: "Cmd+O",
-    when: { mac: true, commandCenter: false },
-    help: {
-      id: "new-worktree",
-      section: "projects",
-      label: "New worktree",
-      keys: ["mod", "O"],
-    },
-  },
-  {
-    id: "worktree-new-ctrl-o-non-mac",
-    action: "worktree.new",
-    combo: "Ctrl+O",
-    when: { mac: false, commandCenter: false, terminal: false },
-    help: {
-      id: "new-worktree",
-      section: "projects",
-      label: "New worktree",
-      keys: ["mod", "O"],
-    },
-  },
-
   // --- Archive worktree ---
   {
     id: "worktree-archive-cmd-shift-backspace-mac",
diff --git a/packages/desktop/src/main.ts b/packages/desktop/src/main.ts
index f6a779000..1109ef564 100644
--- a/packages/desktop/src/main.ts
+++ b/packages/desktop/src/main.ts
@@ -90,6 +90,7 @@ const FORWARDED_PASEO_SHORTCUT_KEYS = new Set([
   "w",
   "t",
   "k",
+  "o",
   "/",
   "\\",
   ",",