chore: import upstream snapshot with attribution

tests/resources/examples/archer/tools/python/word_count.py

@@ -0,0 +1,16 @@
+"""Local word-count tool for the archer e2e fixture."""
+
+from __future__ import annotations
+
+from omnigent_client.tools import tool
+
+
+@tool
+def word_count(text: str) -> dict[str, int]:
+    """
+    Count whitespace-delimited words in ``text``.
+
+    :param text: Text to count.
+    :returns: A JSON-serializable dict containing ``word_count``.
+    """
+    return {"word_count": len(text.split())}