feat(reset): multi-agent-mux-reset skill - reset.sh, SKILL.md, packaging (#78)

tests/test_issue78_hints_codex.py

@@ -18,7 +18,7 @@ SKILLS = REPO_ROOT / ".agents" / "skills"
 if str(SKILLS) not in sys.path:
     sys.path.insert(0, str(SKILLS))
 
-from lib_py.agents.base import DiscoveryContext, file_holders  # noqa: E402
+from lib_py.agents.base import DiscoveryContext  # noqa: E402
 from lib_py.agents.registry import get_adapter  # noqa: E402
 
 pytestmark = pytest.mark.usefixtures("own_workspace_root")
@@ -142,18 +142,33 @@ def test_in_use_hints_list_lsof_holders(tmp_path, monkeypatch, agent):
             assert f"ps -axww | grep {conv}" in hints[0]
         assert any(f"held open by pid {holder.pid}:" in h and "sleep 300" in h for h in hints)
         assert target in adapter.in_use_paths(conv, ctx)
-
-        # Control: without lsof on PATH, file_holders returns [] and hints match the pre-#78 lines.
-        monkeypatch.setenv("PATH", str(no_lsof_bin))
-        assert file_holders([target]) == []
-        hints_no_lsof = adapter.in_use_hints(conv, ctx)
-        assert not any("held open by pid" in h for h in hints_no_lsof)
-        assert any(f"ps -axww | grep {conv}" in h for h in hints_no_lsof)
     finally:
         holder.kill()
         holder.wait()
 
 
+def test_in_use_hints_no_lsof_unchanged(tmp_path, monkeypatch):
+    """§5.1 regression control: without lsof on PATH, hints match pre-#78 lines."""
+    home = tmp_path / "home"
+    ws = tmp_path / "ws"
+    no_lsof_bin = tmp_path / "no-lsof-bin"
+    for d in (home, ws, no_lsof_bin):
+        d.mkdir(parents=True, exist_ok=True)
+    monkeypatch.setenv("HOME", str(home))
+    monkeypatch.setenv("HOME_DIR", str(home))
+    monkeypatch.setenv("CODEX_HOME", str(home / ".codex"))
+    monkeypatch.setenv("PATH", str(no_lsof_bin))
+
+    for agent in ("claude", "agy", "codex", "grok", "hermes"):
+        conv = str(uuidlib.uuid4())
+        ctx = DiscoveryContext(workspace=str(ws), agent_name=agent, home_dir=str(home))
+        _materialize_artifact(agent, conv, ctx)
+        adapter = get_adapter(agent)
+        hints = adapter.in_use_hints(conv, ctx)
+        assert not any("held open by pid" in h for h in hints)
+        assert any(f"ps -axww | grep {conv}" in h for h in hints)
+
+
 def test_in_use_hints_opencode_skip_service(tmp_path, monkeypatch):
     home = tmp_path / "home"
     ws = tmp_path / "ws"