diff --git a/CLAUDE.md b/CLAUDE.md
index 9e8db6d..e48c817 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -11,8 +11,7 @@ This is a personal agenda web application built with Flask that tracks various e
 
 ## Python Environment
 - Always use `python3` directly, never `python`
-- Run `black` code formatter on modified code after creating or modifying Python files
-- Avoid running `black .`
+- Run `black` code formatter after creating or modifying Python files
 - Main entry point: `python3 web_view.py` (Flask app on port 5000)
 - Tests: Use `pytest` (tests in `/tests/` directory)
 
@@ -27,4 +26,4 @@ This is a personal agenda web application built with Flask that tracks various e
 ## Git Workflow
 - Avoid committing unrelated untracked files (e.g., `node_modules/`, build artifacts)
 - Only commit relevant project files
-- Personal data directory (`personal-data/`) is excluded from git
+- Personal data directory (`personal-data/`) is excluded from git
\ No newline at end of file
diff --git a/agenda/__init__.py b/agenda/__init__.py
index 0428f0c..4fca2b0 100644
--- a/agenda/__init__.py
+++ b/agenda/__init__.py
@@ -22,7 +22,7 @@ def format_list_with_ampersand(items: list[str]) -> str:
     return ""
 
 
-def get_country(alpha_2: str | None) -> pycountry.db.Country | None:
+def get_country(alpha_2: str|None) -> pycountry.db.Country | None:
     """Lookup country by alpha-2 country code."""
     if not alpha_2:
         return None
@@ -32,7 +32,7 @@ def get_country(alpha_2: str | None) -> pycountry.db.Country | None:
         return None
     if alpha_2 == "xk":
         return pycountry.db.Country(
-            flag="\U0001f1fd\U0001f1f0", name="Kosovo", alpha_2="xk"
+            flag="\U0001F1FD\U0001F1F0", name="Kosovo", alpha_2="xk"
         )
 
     country: pycountry.db.Country | None = None
diff --git a/agenda/schengen.py b/agenda/schengen.py
index 016cc01..4061923 100644
--- a/agenda/schengen.py
+++ b/agenda/schengen.py
@@ -40,7 +40,6 @@ SCHENGEN_COUNTRIES = {
     "ch",  # Switzerland
 }
 
-
 def is_schengen_country(country_code: str) -> bool:
     """Check if a country is in the Schengen area."""
     if not country_code or not isinstance(country_code, str):