fix(schema): restore ParamDecl mappings and drop messages-send RequiredWhen

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/cli/catalogcodegen/probemain/main_test.go

@@ -0,0 +1,53 @@
+// Copyright 2026 Alibaba Group
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"bytes"
+	"io"
+	"os"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/DingTalk-Real-AI/dingtalk-workspace-cli/internal/cli/catalogcodegen"
+)
+
+func TestCrossPlatformCoverageProbeMainPrintsToolTotals(t *testing.T) {
+	if len(catalogcodegen.Tools) == 0 {
+		t.Fatal("generated catalog tools must be non-empty")
+	}
+	old := os.Stdout
+	r, w, err := os.Pipe()
+	if err != nil {
+		t.Fatal(err)
+	}
+	os.Stdout = w
+	main()
+	_ = w.Close()
+	os.Stdout = old
+	var buf bytes.Buffer
+	if _, err := io.Copy(&buf, r); err != nil {
+		t.Fatal(err)
+	}
+	_ = r.Close()
+	fields := strings.Fields(strings.TrimSpace(buf.String()))
+	if len(fields) != 2 {
+		t.Fatalf("main output = %q, want \"<tools> <total>\"", buf.String())
+	}
+	tools, err := strconv.Atoi(fields[0])
+	if err != nil || tools != len(catalogcodegen.Tools) {
+		t.Fatalf("tool count = %q, want %d", fields[0], len(catalogcodegen.Tools))
+	}
+}