diff --git a/.claudeignore b/.claudeignore
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+# Python virtual environments (17.4 GB CUDA binaries)
+**/.venv/
+**/venv/
+
+# Python cache (5,887 directories)
+**/__pycache__/
+**/.pytest_cache/
+**/*.egg-info/
+
+# Build artifacts
+@build/
+dist/
+**/build/
+
+# Turbo cache (many scattered directories)
+**/.turbo/
+
+# Test artifacts
+test-reports/
+**/coverage/
+
+# Node cache
+**/node_modules/.cache/
+**/.next/
+**/.nuxt/
+
+# IDE/Editor
+**/.idea/
+**/.vscode/
+
+# Logs
+**/*.log
+**/logs/