diff --git a/tests/skills/cases/db-create/extra-args-passthrough-py.json b/tests/skills/cases/db-create/extra-args-passthrough-py.json
deleted file mode 100644
index 34a148bc..00000000
--- a/tests/skills/cases/db-create/extra-args-passthrough-py.json
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-  "name": "Доп. аргументы 1cv8 попадают в командную строку, py-порт (fake platform)",
-  "runtimeOnly": "python",
-  "preRun": [
-    {
-      "writeFile": {
-        "path": "fake.cmd",
-        "content": "@echo off\r\necho ARGS: %*\r\nexit /b 0\r\n"
-      }
-    }
-  ],
-  "args_extra": [
-    "-V8Path",
-    "{workDir}\\fake.cmd",
-    "-InfoBasePath",
-    "{workDir}\\ib",
-    "-AdditionalV8Arguments",
-    "/UseHwLicenses+"
-  ],
-  "expect": {
-    "stdoutContains": "/DisableStartupDialogs /UseHwLicenses+"
-  },
-  "expectError": true,
-  "noSnapshot": "py-порт печатает лог /Out, а не stdout платформы — проверяется строка запуска",
-  "osOnly": "win32"
-}
diff --git a/tests/skills/cases/db-create/extra-args-passthrough.json b/tests/skills/cases/db-create/extra-args-passthrough.json
index 9e223270..b35ed359 100644
--- a/tests/skills/cases/db-create/extra-args-passthrough.json
+++ b/tests/skills/cases/db-create/extra-args-passthrough.json
@@ -16,7 +16,6 @@
     "-AdditionalV8Arguments",
     "/UseHwLicenses+"
   ],
-  "runtimeOnly": "powershell",
   "expect": {
     "stdoutContains": [
       "ARGS: CREATEINFOBASE",
diff --git a/tests/skills/cases/db-create/platform-output-oem.json b/tests/skills/cases/db-create/platform-output-oem.json
new file mode 100644
index 00000000..20a8aec6
--- /dev/null
+++ b/tests/skills/cases/db-create/platform-output-oem.json
@@ -0,0 +1,26 @@
+{
+  "name": "Вывод платформы в cp866 читается (fake platform)",
+  "osOnly": "win32",
+  "preRun": [
+    {
+      "writeFile": {
+        "path": "fake.cmd",
+        "content": "@echo off\r\nchcp 866 >nul\r\necho Не найдена лицензия\r\nexit /b 1\r\n"
+      }
+    }
+  ],
+  "args_extra": [
+    "-V8Path",
+    "{workDir}\\fake.cmd",
+    "-InfoBasePath",
+    "{workDir}\\ib"
+  ],
+  "expect": {
+    "stdoutContains": [
+      "--- Вывод платформы ---",
+      "Не найдена лицензия"
+    ]
+  },
+  "expectError": true,
+  "noSnapshot": "проверяется фолбэк декодирования"
+}
diff --git a/tests/skills/cases/db-create/platform-output-silent.json b/tests/skills/cases/db-create/platform-output-silent.json
new file mode 100644
index 00000000..2c65d1cf
--- /dev/null
+++ b/tests/skills/cases/db-create/platform-output-silent.json
@@ -0,0 +1,23 @@
+{
+  "name": "Молчащая платформа не печатает блок вывода (fake platform)",
+  "osOnly": "win32",
+  "preRun": [
+    {
+      "writeFile": {
+        "path": "fake.cmd",
+        "content": "@echo off\r\nexit /b 1\r\n"
+      }
+    }
+  ],
+  "args_extra": [
+    "-V8Path",
+    "{workDir}\\fake.cmd",
+    "-InfoBasePath",
+    "{workDir}\\ib"
+  ],
+  "expect": {
+    "stdoutNotContains": "--- Вывод платформы ---"
+  },
+  "expectError": true,
+  "noSnapshot": "проверяется отсутствие блока"
+}
diff --git a/tests/skills/cases/db-create/platform-output-utf8.json b/tests/skills/cases/db-create/platform-output-utf8.json
new file mode 100644
index 00000000..abc2f808
--- /dev/null
+++ b/tests/skills/cases/db-create/platform-output-utf8.json
@@ -0,0 +1,18 @@
+{
+  "name": "Вывод платформы в UTF-8 читается (fake platform)",
+  "osOnly": "win32",
+  "preRun": [
+    {
+      "writeFile": {
+        "path": "fake.cmd",
+        "content": "@echo off\r\nchcp 65001 >nul\r\necho Не найдена лицензия\r\nexit /b 1\r\n"
+      }
+    }
+  ],
+  "args_extra": ["-V8Path", "{workDir}\\fake.cmd", "-InfoBasePath", "{workDir}\\ib"],
+  "expect": {
+    "stdoutContains": ["--- Вывод платформы ---", "Не найдена лицензия"]
+  },
+  "expectError": true,
+  "noSnapshot": "проверяется декодирование вывода платформы"
+}
diff --git a/tests/skills/cases/db-create/spaced-path.json b/tests/skills/cases/db-create/spaced-path.json
new file mode 100644
index 00000000..18fcd310
--- /dev/null
+++ b/tests/skills/cases/db-create/spaced-path.json
@@ -0,0 +1,23 @@
+{
+  "name": "Путь с пробелом попадает в командную строку в кавычках (fake platform)",
+  "osOnly": "win32",
+  "preRun": [
+    {
+      "writeFile": {
+        "path": "fake.cmd",
+        "content": "@echo off\r\necho ARGS: %*\r\nexit /b 1\r\n"
+      }
+    }
+  ],
+  "args_extra": [
+    "-V8Path",
+    "{workDir}\\fake.cmd",
+    "-InfoBasePath",
+    "{workDir}\\с пробелом"
+  ],
+  "expect": {
+    "stdoutContains": "ARGS: CREATEINFOBASE File=\""
+  },
+  "expectError": true,
+  "noSnapshot": "проверяется форма токена, файлов на выходе нет"
+}
diff --git a/tests/skills/cases/db-dump-cf/missing-infobase.json b/tests/skills/cases/db-dump-cf/missing-infobase.json
new file mode 100644
index 00000000..9d948d86
--- /dev/null
+++ b/tests/skills/cases/db-dump-cf/missing-infobase.json
@@ -0,0 +1,13 @@
+{
+  "name": "Отказ до запуска: информационная база не найдена",
+  "args_extra": [
+    "-V8Path",
+    "{workDir}",
+    "-InfoBasePath",
+    "{workDir}\\нет-такой-базы",
+    "-OutputFile",
+    "{workDir}\\out.cf"
+  ],
+  "expectError": true,
+  "noSnapshot": "негативный кейс: платформа не запускается"
+}
diff --git a/tests/skills/cases/epf-build/extra-args-build.json b/tests/skills/cases/epf-build/extra-args-build.json
new file mode 100644
index 00000000..11b0e07d
--- /dev/null
+++ b/tests/skills/cases/epf-build/extra-args-build.json
@@ -0,0 +1,45 @@
+{
+  "name": "Доп. аргументы доходят до самой сборки EPF (fake platform)",
+  "osOnly": "win32",
+  "preRun": [
+    {
+      "writeFile": {
+        "path": "fake.cmd",
+        "content": "@echo off\r\necho ARGS: %*\r\nexit /b 0\r\n"
+      }
+    },
+    {
+      "writeFile": {
+        "path": "ib/1Cv8.1CD",
+        "content": "fake infobase\n"
+      }
+    },
+    {
+      "writeFile": {
+        "path": "src/Обработка.xml",
+        "content": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<MetaDataObject xmlns=\"http://v8.1c.ru/8.3/MDClasses\"/>\n"
+      }
+    }
+  ],
+  "args_extra": [
+    "-V8Path",
+    "{workDir}\\fake.cmd",
+    "-InfoBasePath",
+    "{workDir}\\ib",
+    "-SourceFile",
+    "{workDir}\\src\\Обработка.xml",
+    "-OutputFile",
+    "{workDir}\\build\\Обработка.epf",
+    "-AdditionalV8Arguments",
+    "/UseHwLicenses+"
+  ],
+  "expect": {
+    "stdoutContains": [
+      "ARGS: DESIGNER",
+      "/LoadExternalDataProcessorOrReportFromFiles",
+      "/DisableStartupDialogs /UseHwLicenses+"
+    ]
+  },
+  "expectError": true,
+  "noSnapshot": "база указана явно, stub не создаётся; EPF фейком не собирается — проверяется командная строка"
+}
diff --git a/tests/skills/cases/epf-build/extra-args-stub-chain.json b/tests/skills/cases/epf-build/extra-args-stub-chain.json
index ea24c621..e880be32 100644
--- a/tests/skills/cases/epf-build/extra-args-stub-chain.json
+++ b/tests/skills/cases/epf-build/extra-args-stub-chain.json
@@ -1,10 +1,11 @@
 {
-  "name": "Доп. аргументы уходят и во временную базу, и в сборку (fake platform)",
+  "name": "Доп. аргументы доходят до временной базы (fake platform)",
+  "osOnly": "win32",
   "preRun": [
     {
       "writeFile": {
         "path": "fake.cmd",
-        "content": "@echo off\r\necho ARGS: %*\r\nexit /b 0\r\n"
+        "content": "@echo off\r\necho ARGS: %*\r\nexit /b 1\r\n"
       }
     },
     {
@@ -24,16 +25,12 @@
     "-AdditionalV8Arguments",
     "/UseHwLicenses+"
   ],
-  "runtimeOnly": "powershell",
   "expect": {
     "stdoutContains": [
       "ARGS: CREATEINFOBASE",
-      "/DisableStartupDialogs /UseHwLicenses+",
-      "ARGS: DESIGNER",
-      "/LoadExternalDataProcessorOrReportFromFiles"
+      "/DisableStartupDialogs /UseHwLicenses+"
     ]
   },
   "expectError": true,
-  "noSnapshot": "проверяются командные строки в stdout, платформа фейковая — EPF не создаётся",
-  "osOnly": "win32"
+  "noSnapshot": "платформа фейковая и падает на первом запуске — проверяется её командная строка"
 }