diff --git a/README.md b/README.md
index 5e89270..8eb10e5 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,7 @@ browser-cli/
 
 All commands are run with `uv run browser-cli [--browser ALIAS] <command>`.
 
-If exactly one browser instance is connected, commands auto-target it. Use `--browser ALIAS` when multiple browser instances are connected. `tabs list`, `tabs count`, `group list`, `group count`, and `windows list` are the only commands that aggregate across all active browsers when `--browser` is omitted; in that mode they show the source browser alias or UUID. You can inspect the active instances with `browser-cli clients` and assign a persistent profile alias from inside the target browser with `browser-cli rename-profile --browser <current-alias> <new-alias>`. Closed browsers are removed from the client registry automatically.
+If exactly one browser instance is connected, commands auto-target it. Use `--browser ALIAS` when multiple browser instances are connected. `tabs list`, `tabs count`, `groups list`, `groups count`, and `windows list` are the only commands that aggregate across all active browsers when `--browser` is omitted; in that mode they show the source browser alias or UUID. You can inspect the active instances with `browser-cli clients` and assign a persistent profile alias from inside the target browser with `browser-cli rename-profile --browser <current-alias> <new-alias>`. Closed browsers are removed from the client registry automatically.
 
 Important: profile aliases are browser-instance aliases, not window aliases. Window aliases created with `windows rename` are only for targeting windows in commands like `nav open --window work`. If a browser instance has no explicit profile alias set, the native host gives it a generated UUID alias so multiple unaliased browsers stay distinct.
 
@@ -203,19 +203,19 @@ browser-cli tabs merge-windows               # pull all tabs into the current wi
 ### Tab groups
 
 ```sh
-browser-cli group list                       # list all tab groups
-browser-cli group count                      # count groups
-browser-cli group query "work"               # search groups by name
-browser-cli group tabs 42                    # list tabs inside group ID 42
+browser-cli groups list                      # list all tab groups
+browser-cli groups count                     # count groups
+browser-cli groups query "work"              # search groups by name
+browser-cli groups tabs 42                   # list tabs inside group ID 42
 
-browser-cli group create "research"          # create a new group
-browser-cli group add-tab research           # open a blank tab in the group
-browser-cli group add-tab research https://example.com   # open URL in the group
-browser-cli group add-tab 42 https://example.com         # by group ID
+browser-cli groups create "research"         # create a new group
+browser-cli groups add-tab research          # open a blank tab in the group
+browser-cli groups add-tab research https://example.com  # open URL in the group
+browser-cli groups add-tab 42 https://example.com        # by group ID
 
-browser-cli group close 42                   # ungroup the group
-browser-cli group move research --forward    # move group right
-browser-cli group move 42 --backward         # move group left
+browser-cli groups close 42                  # ungroup the group
+browser-cli groups move research --forward   # move group right
+browser-cli groups move 42 --backward        # move group left
 ```
 
 ### Windows
diff --git a/browser_cli/commands/groups.py b/browser_cli/commands/groups.py
index be7fbcd..9459e75 100644
--- a/browser_cli/commands/groups.py
+++ b/browser_cli/commands/groups.py
@@ -59,7 +59,7 @@ def _print_groups(groups: list[dict], *, show_browser: bool = False) -> None:
     console.print(table)
 
 
-@click.group("group")
+@click.group("groups")
 def group_group():
     """Manage tab groups."""
 
diff --git a/tests/test_cli.py b/tests/test_cli.py
index e546e54..0933732 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -162,7 +162,7 @@ def test_group_count_multi_browser_shows_total():
             BrowserTarget("work", "work", "/tmp/work.sock"),
         ],
     ), patch("browser_cli.commands.groups.send_command", side_effect=fake_send_command):
-        result = CliRunner().invoke(main, ["group", "count"])
+        result = CliRunner().invoke(main, ["groups", "count"])
 
     assert result.exit_code == 0
     assert "Browser" in result.output
@@ -175,7 +175,7 @@ def test_group_list_leaves_unnamed_group_cell_empty():
         "browser_cli.commands.groups.send_command",
         return_value=[{"id": 42, "title": "", "color": "grey", "collapsed": False, "tabCount": 1}],
     ):
-        result = CliRunner().invoke(main, ["group", "list"])
+        result = CliRunner().invoke(main, ["groups", "list"])
 
     assert result.exit_code == 0
     assert "(unnamed)" not in result.output