diff --git a/.gitignore b/.gitignore
index b25701b..a7b15b4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,6 @@
-.ruff_cache
+# Note: this file only excludes root level entries.
+# Subdirectories must use their own .gitignore file to make sure
+# that they are complete and can be used outside this repository.
+
+/.ruff_cache
+/.vscode
diff --git a/knowledge_base/.gitignore b/knowledge_base/.gitignore
new file mode 100644
index 0000000..fffa65f
--- /dev/null
+++ b/knowledge_base/.gitignore
@@ -0,0 +1,19 @@
+# Python
+__pycache__/
+dist/
+build/
+.venv/
+.pytest_cache/
+
+# Scala/SBT
+target/
+
+# Databricks
+.databricks
+
+# Editors
+.vscode/
+
+# Build artifacts
+*.jar
+*.class