add CLAUDE.md

CLAUDE.md

@@ -0,0 +1,27 @@
+# ~/.claude/CLAUDE.md
+
+## system-wide
+- apply this to all repositories that are CLAUDE-enabled on this machine
+
+## Python
+- use black for code formatting
+- use uv for dependency management and python version management
+- prefer using Python to other languages when it is appropriate
+
+## JavaScript
+- use prettier for code formatting
+- do not use a build process. Always import libraries via script tags when possible. If this is not possible, consider alternatives that do not involve a build process.
+- use Vue.js as a framework
+
+## Lua
+- Lua is an option. If you want to write code in Lua that is fine.
+- Please explain Lua code in more detail.
+
+## Bash
+- Bash is an option. If you want to write code in Bash that is fine.
+- Please explain Bash code in more detail.
+
+## Other guidance
+- avoid running unsafe operations, such as curl piped to bash, or other such dangerous procedures. If such an approach seems necessary, please consult with me first and explain the risks.
+- don't share secrets. Keep secrets as environment variables and take appropriate precautions. Do not commit secrets.
+- commit frequently. Smaller commits are better than big ones.