Keyboard Shortcuts: importMatches.list answers an unknown parameter key with an error

Since #1442 (3acc29f8), a caller outside the app gets an error for a
parameter key that the command's params description doesn't name, and
every_description_parses requires each top-level entry of the params
object to start with a key. The note on query in importMatches.list had
a comma at the top level ("text in the name, target or label"), so the
description didn't parse: the test failed, and the command took any key.
The note is now in parentheses, and the command takes kind and query.
A test checks that shortcutSet.read and the three importMatches
commands take every key they read and refuse a misspelled one.

crates/engine/src/cmd/importmatches.rs

@@ -45,7 +45,7 @@ pub fn specs() -> Vec<CommandSpec> {
             "Import Matches",
             [],
             None,
-            "{kind?: name|key|modifiers, query?: text in the name, target or label (any case)} the matches the user confirmed when importing other apps' files (shortcut sets), kept with the preferences → [{kind, name, target, label?}] (target \"\": no equivalent)",
+            "{kind?: name|key|modifiers, query?: text (in the name, target or label; any case)} the matches the user confirmed when importing other apps' files (shortcut sets), kept with the preferences → [{kind, name, target, label?}] (target \"\": no equivalent)",
             always,
             list
         ),

crates/engine/src/tests_shortcutset.rs

@@ -224,3 +224,17 @@ fn read_shows_what_earlier_imports_matched() {
     let mods = json!([{"value": 0, "count": 1, "mods": ""}, {"value": 64, "count": 1, "mods": "Cmd"}, {"value": 80, "count": 1}]);
     assert_eq!(r["codes"]["modifiers"], mods);
 }
+
+#[test]
+fn the_commands_take_only_the_keys_they_describe() {
+    // The control channel, MCP and the CLI check params against the description (#1442).
+    for (id, every_key) in [
+        ("shortcutSet.read", json!({"path": "/x/a.kys", "data": "", "dataBase64": "", "name": "a.kys"})),
+        ("importMatches.list", json!({"kind": "name", "query": "undo"})),
+        ("importMatches.set", json!({"matches": []})),
+        ("importMatches.reset", json!({"kind": "key"})),
+    ] {
+        check_params(id, &every_key).unwrap();
+        assert!(check_params(id, &json!({"qeury": "undo"})).is_err(), "{id}");
+    }
+}