[Bug] Claude ignores custom directives in ~/.claude/CLAUDE.md config file

Bug Description
Claude explicitly ignored the ~/.claude/CLAUDE.md directive:

Em dash - FORBIDDEN CHARACTER

NEVER output the — character (em dash, U+2014). Zero exceptions, in any context.
If you catch yourself about to write —, stop and use a comma, semicolon, or rewrite the sentence.
This rule overrides any stylistic preference. Check every sentence before outputting.

Every time i launch claude code, it always use the em-dash.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.178
• Feedback ID: 98ac81c2-8b48-40a8-928f-d3dcbf92a987

Errors

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