diff --git a/README.md b/README.md
index 2bbc1ab..996c0c5 100644
--- a/README.md
+++ b/README.md
@@ -24,18 +24,18 @@ Subcommands are explicit. Use `git-worktreeinclude apply ...`.
 ### Apply
 
 ```sh
-git-worktreeinclude apply --from auto
+git-worktreeinclude apply
 ```
 
 Or via Git extension:
 
 ```sh
-git worktreeinclude apply --from auto
+git worktreeinclude apply
 ```
 
 ## `.worktreeinclude` semantics
 
-- Place `.worktreeinclude` at the source worktree root (for `--from auto`, this is typically the main worktree).
+- Place `.worktreeinclude` at the source worktree root (by default, this is typically the main worktree selected by `--from auto`).
 - Format is gitignore-compatible (`#` comments, blank lines, `!` negation, `/` anchors, `**`, etc.).
 - `.worktreeinclude` may be tracked, untracked, or ignored; if the file exists in the source worktree, it is used.
 - Actual sync target is the intersection of:
@@ -159,7 +159,7 @@ Run this immediately after creating a worktree:
 
 ```sh
 git worktree add <path> -b <branch>
-git -C <path> worktreeinclude apply --from auto --json
+git -C <path> worktreeinclude apply --json
 ```
 
 - Evaluate success by exit code
@@ -186,7 +186,7 @@ set -eu
 
 old="$1"
 if [ "$old" = "0000000000000000000000000000000000000000" ]; then
-  git worktreeinclude apply --from auto --quiet || true
+  git worktreeinclude apply --quiet || true
 fi
 ```
 
@@ -201,7 +201,7 @@ fi
 Notes:
 
 - `git worktree add --no-checkout` may not trigger `post-checkout`.
-- In that case, run `git worktreeinclude apply --from auto` manually.
+- In that case, run `git worktreeinclude apply` manually.
 
 ## Exit codes
 
diff --git a/internal/cli/cli_integration_test.go b/internal/cli/cli_integration_test.go
index 444ccab..12c8c41 100644
--- a/internal/cli/cli_integration_test.go
+++ b/internal/cli/cli_integration_test.go
@@ -350,7 +350,7 @@ func TestHookPathAndPrint(t *testing.T) {
 	if code != 0 {
 		t.Fatalf("hook print exit code = %d", code)
 	}
-	if !strings.Contains(snippet, "git worktreeinclude apply --from auto --quiet || true") {
+	if !strings.Contains(snippet, "git worktreeinclude apply --quiet || true") {
 		t.Fatalf("unexpected hook snippet: %s", snippet)
 	}
 }
diff --git a/internal/cli/cli_unit_test.go b/internal/cli/cli_unit_test.go
index 585b940..a156e32 100644
--- a/internal/cli/cli_unit_test.go
+++ b/internal/cli/cli_unit_test.go
@@ -105,7 +105,7 @@ func TestRunHookPrint(t *testing.T) {
 	if code != exitcode.OK {
 		t.Fatalf("Run returned %d, want %d; stderr=%s", code, exitcode.OK, stderr.String())
 	}
-	if !strings.Contains(stdout.String(), "git worktreeinclude apply --from auto --quiet || true") {
+	if !strings.Contains(stdout.String(), "git worktreeinclude apply --quiet || true") {
 		t.Fatalf("unexpected snippet: %q", stdout.String())
 	}
 }
diff --git a/internal/hooks/hooks.go b/internal/hooks/hooks.go
index a914284..6711bfb 100644
--- a/internal/hooks/hooks.go
+++ b/internal/hooks/hooks.go
@@ -10,7 +10,7 @@ set -eu
 
 old="$1"
 if [ "$old" = "0000000000000000000000000000000000000000" ]; then
-  git worktreeinclude apply --from auto --quiet || true
+  git worktreeinclude apply --quiet || true
 fi
 `, nil
 	default:
diff --git a/internal/hooks/hooks_test.go b/internal/hooks/hooks_test.go
index 0b4a98c..54b3562 100644
--- a/internal/hooks/hooks_test.go
+++ b/internal/hooks/hooks_test.go
@@ -10,7 +10,7 @@ func TestPrintSnippetPostCheckout(t *testing.T) {
 	if err != nil {
 		t.Fatalf("PrintSnippet returned error: %v", err)
 	}
-	if !strings.Contains(got, "git worktreeinclude apply --from auto --quiet || true") {
+	if !strings.Contains(got, "git worktreeinclude apply --quiet || true") {
 		t.Fatalf("unexpected snippet: %q", got)
 	}
 }