expunge
Leave what you asked to remove having never existed. It may be in the code. It may be something raised in the conversation.
Keeping it in another form, recording that it was removed, taking other things with it, stopping to confirm — all forbidden.
Install
Claude Code:
/plugin marketplace add HotariTobu/expunge
/plugin install expunge@expunge-marketplace
Codex:
codex plugin marketplace add HotariTobu/expunge
codex plugin add expunge@expunge-marketplace
Usage
/expunge "Special Offers and Updates for You"
/forget "This could become a performance bottleneck at scale."