fix: validate Cua window discovery filters and guide recovery

plugins/cua-driver/main.go

@@ -25,6 +25,8 @@ import (
 //go:embed tools.json
 var toolsJSON []byte
 
+const adapterVersion = "0.36.0+artemis.1"
+
 type obj = map[string]any
 type request struct {
 	JSONRPC string          `json:"jsonrpc"`
@@ -104,7 +106,7 @@ func startPeer(exe string) (*peer, error) {
 			p.lines <- append([]byte(nil), s.Bytes()...)
 		}
 	}()
-	_, err = p.call("initialize", obj{"protocolVersion": "2024-11-05", "clientInfo": obj{"name": "artemis-cua-adapter", "version": "0.36.0"}, "capabilities": obj{}})
+	_, err = p.call("initialize", obj{"protocolVersion": "2024-11-05", "clientInfo": obj{"name": "artemis-cua-adapter", "version": adapterVersion}, "capabilities": obj{}})
 	if err != nil {
 		p.stop()
 		return nil, err
@@ -200,7 +202,11 @@ func (a *adapter) validate(name string, args obj) error {
 			return fmt.Errorf("missing argument: %s", str(key))
 		}
 	}
-	if name != "list_windows" && (num(args["pid"]) <= 0 || num(args["window_id"]) <= 0) {
+	if name == "list_windows" {
+		_, err := windowQuery(args)
+		return err
+	}
+	if num(args["pid"]) <= 0 || num(args["window_id"]) <= 0 {
 		return errors.New("a concrete pid and window_id are required")
 	}
 	if name == "save_screenshot" && !validFilename(str(args["filename"])) {
@@ -302,6 +308,12 @@ func (a *adapter) handle(name string, args obj) obj {
 			}
 		}
 		r, src, err = a.observe(args)
+	} else if name == "list_windows" {
+		query, _ := windowQuery(args) // Already validated above.
+		r, err = a.peer.tool(name, query)
+		if err == nil {
+			r = windowListing(r, query)
+		}
 	} else {
 		upstream := name
 		if name == "click_at" {
@@ -412,7 +424,7 @@ func serve(a *adapter, in io.Reader, out io.Writer) {
 		var rpcErr any
 		switch q.Method {
 		case "initialize":
-			result = obj{"protocolVersion": "2024-11-05", "capabilities": obj{"tools": obj{}}, "serverInfo": obj{"name": "artemis-cua-driver", "version": "0.36.0"}}
+			result = obj{"protocolVersion": "2024-11-05", "capabilities": obj{"tools": obj{}}, "serverInfo": obj{"name": "artemis-cua-driver", "version": adapterVersion}}
 		case "ping":
 			result = obj{}
 		case "tools/list":