diff --git a/src/sdlc_hub/core/cli.py b/src/sdlc_hub/core/cli.py
index 761b364..9693ee3 100644
--- a/src/sdlc_hub/core/cli.py
+++ b/src/sdlc_hub/core/cli.py
@@ -31,6 +31,12 @@ def main(argv=None) -> int:
     p.add_argument("path")
     args = ap.parse_args(argv)
 
+    if (problem := paths.home_problem()):
+        print(problem, file=sys.stderr)
+        return 2
+    if (warning := paths.home_warning()):
+        print(warning, file=sys.stderr)
+
     if args.cmd == "agent":
         from . import release
         names = [m.name for m in registry.agent_modules()]
diff --git a/src/sdlc_hub/core/paths.py b/src/sdlc_hub/core/paths.py
index 10ea4d1..59fb68f 100644
--- a/src/sdlc_hub/core/paths.py
+++ b/src/sdlc_hub/core/paths.py
@@ -10,6 +10,27 @@ def home() -> Path:
     return Path(os.environ.get("SDLC_HUB_HOME", str(Path.home() / ".local" / "share" / "sdlc-hub")))
 
 
+def legacy_home() -> Path:
+    """Каталог данных под прежним именем (до переименования в sdlc-hub)."""
+    return Path.home() / ".local" / "share" / "jira-hub"
+
+
+def home_problem() -> "str | None":
+    """Текст отказа, если данные лежат только под прежним именем; при заданном SDLC_HUB_HOME проверки нет."""
+    if os.environ.get("SDLC_HUB_HOME") or home().exists() or not legacy_home().exists():
+        return None
+    return ("каталог данных хаба лежит под прежним именем ~/.local/share/jira-hub; перенесите его: "
+            "bash scripts/cutover.sh (или mv ~/.local/share/jira-hub ~/.local/share/sdlc-hub при остановленном хабе)")
+
+
+def home_warning() -> "str | None":
+    """Предупреждение, если существуют оба каталога (SDLC_HUB_HOME не задан)."""
+    if os.environ.get("SDLC_HUB_HOME") or not (home().exists() and legacy_home().exists()):
+        return None
+    return ("есть и ~/.local/share/sdlc-hub, и ~/.local/share/jira-hub: работаю с новым, "
+            "прежний каталог ~/.local/share/jira-hub можно удалить после проверки")
+
+
 def db_path() -> Path:
     return home() / "hub.sqlite"
 
diff --git a/tests/conftest.py b/tests/conftest.py
index 55ca5a5..d3ac10d 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -13,6 +13,12 @@ from sdlc_hub.modules.jira import project_fields
 from sdlc_hub.modules.jira import projects as jira_projects
 
 
+@pytest.fixture(autouse=True)
+def _isolated_home(monkeypatch, tmp_path_factory):
+    """HOME — во временный каталог: на результат не влияют реальные ~/.local/share/{jira,sdlc}-hub разработчика."""
+    monkeypatch.setenv("HOME", str(tmp_path_factory.mktemp("home")))
+
+
 @pytest.fixture
 def open_db():
     """Фабрика соединений: open_db() — база в памяти, open_db(path) — файл. Все закрываются после теста."""
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 51bdcf1..168f641 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -2,6 +2,8 @@ import json
 import os
 from pathlib import Path
 
+import pytest
+
 from sdlc_hub.core import api, cli, paths, release, settings
 
 FIXTURE = Path(__file__).parent / "fixtures" / "config.example.json"
@@ -103,3 +105,34 @@ def test_agent_publish_migrates_old_layout(tmp_path, monkeypatch, capsys):
     assert cli.main(["agent", "publish", str(new)]) == 1           # v13 < v14: «только вверх» видит прежнюю публикацию
     assert not (rel / "agent.py").exists() and not (rel / "manifest.json").exists()
     assert json.loads((rel / "jira" / "manifest.json").read_text(encoding="utf-8"))["version"] == 14
+
+
+def _homes(monkeypatch, tmp_path, legacy=True, new=False):
+    monkeypatch.delenv("SDLC_HUB_HOME", raising=False)
+    monkeypatch.setenv("HOME", str(tmp_path))
+    share = tmp_path / ".local" / "share"
+    if legacy: (share / "jira-hub").mkdir(parents=True)
+    if new: (share / "sdlc-hub").mkdir(parents=True)
+    return share
+
+
+@pytest.mark.parametrize("argv", [["serve"], ["tokens"], ["mcp", "jira"], ["agent", "publish", "x.py"]])
+def test_legacy_home_refused(monkeypatch, tmp_path, capsys, argv):
+    share = _homes(monkeypatch, tmp_path)
+    assert cli.main(argv) == 2
+    err = capsys.readouterr().err
+    assert "~/.local/share/jira-hub" in err and "scripts/cutover.sh" in err
+    assert not (share / "sdlc-hub").exists()
+    assert sorted(p.name for p in (share / "jira-hub").iterdir()) == []
+
+
+def test_both_homes_warn(monkeypatch, tmp_path, capsys):
+    _homes(monkeypatch, tmp_path, new=True)
+    cli.main(["tokens"])
+    assert "прежний каталог ~/.local/share/jira-hub можно удалить" in capsys.readouterr().err
+
+
+def test_env_home_skips_legacy_check(monkeypatch, tmp_path, capsys):
+    _homes(monkeypatch, tmp_path)
+    monkeypatch.setenv("SDLC_HUB_HOME", str(tmp_path / "x"))
+    assert cli.main(["tokens"]) == 0