diff --git a/.claude/rules/bash-style.md b/.claude/rules/bash-style.md
index 36c50b3..36b1924 100644
--- a/.claude/rules/bash-style.md
+++ b/.claude/rules/bash-style.md
@@ -48,6 +48,7 @@ function do_thing() {
 - `(( ))` for arithmetic comparisons
 - `$(command)` for substitution, never backticks
 - Double quotes around expansions: `"$var"`, `"${array[@]}"`
+- Quote the whole string, not just the variable: `"$HOME/.local/bin"` not `"$HOME"/.local/bin`
 - Single quotes for literals that must not expand
 - `printf` over `echo` when output contains escapes or format strings