fix(ddic): create 命令消费 JSON description（--description 优先→JSON→回退名）；upload testclasses XML 包裹通道（S4T 三轮实证）；SKILL 错误速查表 +4 条 NW740 实证（ADT 创建不持久化文本/classes 激活空响应/unknown comments/STRG+comptype 陷阱）

assets/sapcli/commands/crud.py

@@ -859,6 +859,27 @@ def cmd_create(args: argparse.Namespace, client: ADTClient) -> None:
     source_file: str | None = getattr(args, "source", None)
     definition_file: str | None = getattr(args, "definition", None)
 
+    # JSON definition description: --description wins, then JSON, then name.
+    # (NW740 ADT create does not persist texts anyway — see SKILL.md known
+    # limitation; this only affects the XML body sent at creation time.)
+    if (
+        definition_file
+        and not getattr(args, "description", None)
+        and obj_type in DDIC_TYPES
+    ):
+        import json as _json
+        import os as _os
+
+        if _os.path.isfile(definition_file):
+            try:
+                with open(definition_file, "r", encoding="utf-8") as f:
+                    _data = _json.load(f)
+                _json_desc = _data.get("description")
+                if _json_desc:
+                    description = _json_desc
+            except Exception as _e:
+                logger.warning("读取定义文件 description 失败: %s", _e)
+
     type_label = get_type_config(obj_type).label
 
     if obj_type == "function":

assets/sapcli/commands/upload.py

@@ -33,6 +33,7 @@ def cmd_upload(args: argparse.Namespace, client: ADTClient) -> None:
     obj_type: str = args.type
     file_path: str = args.path
     corr_nr: str | None = getattr(args, "corr_nr", None)
+    part: str | None = getattr(args, "part", None)
 
     parsed = parse_object_name(name, obj_type)
     type_label = get_type_config(obj_type).label
@@ -42,6 +43,16 @@ def cmd_upload(args: argparse.Namespace, client: ADTClient) -> None:
         print(f"     functiongroup 等是容器对象，不包含可编辑的源代码文件")
         raise InvalidNameError(f"{type_label}没有源代码，不支持 upload 操作")
 
+    src_uri = parsed.src_uri
+    if part == "testclasses":
+        # Local test classes include (ABAP Unit): classes only.
+        # ADT unit testruns only discovers LOCAL test classes — global
+        # test classes are NOT run by the endpoint (S4T proven).
+        if obj_type != "class":
+            print(f"\n  ✗ --part testclasses 仅支持 class 类型")
+            raise InvalidNameError("--part testclasses 仅支持 class 类型")
+        src_uri = f"/sap/bc/adt/oo/classes/{name.lower()}/source/testclasses"
+
     if not os.path.isfile(file_path):
         print(f"\n  ✗ 文件不存在: {file_path}")
         raise ConfigError(f"文件不存在: {file_path}")
@@ -90,7 +101,30 @@ def cmd_upload(args: argparse.Namespace, client: ADTClient) -> None:
             print(f"  ✓ 锁定成功（传输请求: {corr_nr}）")
 
     try:
-        client.set_source(parsed.src_uri, source, lock_handle, corr_nr)
+        if part == "testclasses":
+            # testclasses endpoint expects XML body: <abapClass> element
+            # in the oo/classes namespace wrapping the raw source.
+            from xml.sax.saxutils import escape as _esc
+
+            xml_body = (
+                '<?xml version="1.0" encoding="UTF-8"?>'
+                '<cls:abapClass xmlns:cls="http://www.sap.com/adt/oo/classes" '
+                'xmlns:adtcore="http://www.sap.com/adt/core" '
+                'adtcore:type="testclassInclude" '
+                'adtcore:description="Local test classes" '
+                'adtcore:name="zint_cl_route_engine">'
+                f"<cls:source>{_esc(source)}</cls:source>"
+                "</cls:abapClass>"
+            )
+            client.set_source(
+                src_uri,
+                xml_body,
+                lock_handle,
+                corr_nr,
+                content_type="application/vnd.sap.adt.abap.classes+xml; charset=utf-8",
+            )
+        else:
+            client.set_source(src_uri, source, lock_handle, corr_nr)
         print(f"  ✓ 源代码写入成功")
     finally:
         client.unlock(parsed.obj_uri, lock_handle)