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14 changes: 13 additions & 1 deletion scripts/v8std_mcp_index.py
Original file line number Diff line number Diff line change
Expand Up @@ -109,6 +109,17 @@ def require_text(value: Any, field_name: str, max_chars: int) -> str:
return value


def truncate_for_query(text: str, max_chars: int = MAX_QUERY_CHARS) -> str:
"""Обрезает построенный поисковый текст до лимита query, не разрывая слово."""
if len(text) <= max_chars:
return text
cut = text[:max_chars]
boundary = cut.rfind(" ")
if boundary > max_chars // 2:
cut = cut[:boundary]
return cut.strip()


def require_string_list(values: Any, field_name: str, item_max_chars: int) -> list[str] | None:
if values is None:
return None
Expand Down Expand Up @@ -592,7 +603,8 @@ def explain_snippet(
*signal_targets,
]
)
search_result = self.search(signal_text or snippet, types=None, mode="hybrid", limit=limit)
search_text = truncate_for_query(signal_text or snippet)
search_result = self.search(search_text, types=None, mode="hybrid", limit=limit)

diagnostics = []
standards = []
Expand Down
19 changes: 19 additions & 0 deletions tests/test_v8std_mcp_index.py
Original file line number Diff line number Diff line change
Expand Up @@ -241,6 +241,25 @@ def test_related_and_batch_preserve_multiple_clauses_of_one_standard(self):
expected,
)

def test_explain_snippet_accepts_long_snippet(self):
# Регресс: длинный сниппет падал с "query is too long: max 500 characters",
# хотя explain_snippet заявляет лимит MAX_SNIPPET_CHARS (4000).
snippet = (
'Процедура ПриЗаписи(Источник, Отказ) Экспорт\n'
'\tПопытка\n'
'\t\tОбработатьИсточник(Источник);\n'
'\tИсключение\n'
'\t\tЗаписьЖурналаРегистрации("Пример", УровеньЖурналаРегистрации.Ошибка, , '
'Источник.Ссылка, ПодробноеПредставлениеОшибки(ИнформацияОбОшибке()));\n'
'\tКонецПопытки;\n'
'КонецПроцедуры\n'
) * 3
self.assertGreater(len(snippet), 500)
self.assertLess(len(snippet), 4000)
result = self.index.explain_snippet(snippet)
self.assertIn("diagnostics", result)
self.assertIn("signals", result)

def test_explain_snippet_and_batch_diagnostics(self):
snippet = self.index.explain_snippet(
'Запрос = Новый Запрос("ВЫБРАТЬ РАЗРЕШЕННЫЕ ...")'
Expand Down