diff --git a/scripts/booth b/scripts/booth
index 0d63068..8af7ba5 100755
--- a/scripts/booth
+++ b/scripts/booth
@@ -240,7 +240,7 @@ sys.stdout.write("N" if name is None else "B:" + name)
 }
 
 usage() {
-  echo "usage: booth {new <name> [--why W] [--title T]|add <name> <file>... [--why W] [--title T]|url <name>|ls|rm <name>|keep <name>|unkeep <name>|blur <name> <file>...|unblur <name> <file>...|link <url> [description]|links|unlink <id|index>|ask <name> <id> <prompt> <option>... [--no-notes]|marks <name> [--wait [SECS]]|asks <name> (deprecated alias for marks)|answer <name> <id> [--wait [SECS]]|marks-import <name>|bench add <url> <name>|bench ls|bench state <id|url> <live|promoted|retired>|bench rm <id|url>|bench import [--apply <id>...]}" >&2
+  echo "usage: booth {new <name> [--why W] [--title T]|add <name> <file>... [--why W] [--title T]|url <name>|ls|rm <name>|keep <name>|unkeep <name>|blur <name> [<file>...]|unblur <name> [<file>...]|link <url> [description]|links|unlink <id|index>|ask <name> <id> <prompt> <option>... [--no-notes]|marks <name> [--wait [SECS]]|asks <name> (deprecated alias for marks)|answer <name> <id> [--wait [SECS]]|marks-import <name>|bench add <url> <name>|bench ls|bench state <id|url> <live|promoted|retired>|bench rm <id|url>|bench import [--apply <id>...]}" >&2
   exit 2
 }
 
@@ -303,10 +303,30 @@ case "$cmd" in
     # screen-share, a scroll past something you did not want full-size. The
     # Booth has no auth by design: if a thing must not be SEEN, it must not be
     # in a booth.
-    [ $# -ge 2 ] || usage
+    [ $# -ge 1 ] || usage
     b="$1"; shift
     [ -d "$DATA/$b" ] || { echo "no such booth: $b" >&2; exit 1; }
     f="$DATA/$b/$BLUR"
+
+    # NO FILES NAMED = THE WHOLE BOOTH. The Desk shows up to four images from
+    # every booth on the page the operator opens first, so a booth that should
+    # not be glanced at needs to say so as a BOOTH, not item by item — and the
+    # session that posts it is the one that knows.
+    #
+    # A marker, and it COMPOSES with the per-item list rather than replacing
+    # it: `unblur <name>` clears the booth flag and leaves individual choices
+    # exactly as they were.
+    if [ $# -eq 0 ]; then
+      if [ "$cmd" = blur ]; then
+        touch "$DATA/$b/.blurbooth"
+        echo "whole booth blurred (cosmetic — still served): $URL/b/$b/"
+      else
+        rm -f -- "$DATA/$b/.blurbooth"
+        echo "whole booth un-blurred (per-item blur kept): $URL/b/$b/"
+      fi
+      exit 0
+    fi
+
     for item in "$@"; do
       item="${item#"$DATA/$b/"}"; item="${item#/}"
       case "$item" in
diff --git a/tests/test_cli.py b/tests/test_cli.py
index d3cfb51..8428876 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -659,3 +659,40 @@ def test_the_append_happens_INSIDE_the_lock(booth):
             fcntl.flock(lf, fcntl.LOCK_UN)
     assert (board / "links.md").read_text() == "", \
         "the row was appended while another writer held the lock"
+
+
+def test_blur_with_no_files_fogs_the_whole_booth(booth):
+    """The Desk shows up to four images from EVERY booth on the page the
+    operator opens first, so a booth that should not be glanced at has to say
+    so as a booth — and the session that posts it is the one that knows.
+
+    Seventeen handles call this script; a verb here is how they self-blur at
+    post time without waiting for anyone to click anything."""
+    data, b = booth
+    (b / "a.png").write_bytes(b"x")
+
+    out = run(data, "blur", "b")
+    assert out.returncode == 0, out.stderr
+    assert (b / ".blurbooth").exists()
+    assert "whole booth blurred" in out.stdout
+
+    out = run(data, "unblur", "b")
+    assert out.returncode == 0, out.stderr
+    assert not (b / ".blurbooth").exists()
+
+
+def test_unblurring_the_booth_keeps_per_item_choices(booth):
+    """COMPOSES, never overrides — the same promise the resolver makes. An
+    agent's per-item blur must survive the booth flag being cleared.
+
+    Defeating change: `unblur <name>` also clearing `.blurred`."""
+    data, b = booth
+    for n in ("a.png", "b.png"):
+        (b / n).write_bytes(b"x")
+
+    run(data, "blur", "b", "a.png")
+    run(data, "blur", "b")
+    run(data, "unblur", "b")
+
+    assert not (b / ".blurbooth").exists()
+    assert (b / ".blurred").read_text().strip() == "a.png"