Unclear It is not clear what the added text says or when Claude Code turns the option on.
What
When a conversation grows too long, Claude Code can compact it. Compacting means replacing older messages with a summary so there is room to keep working. The instructions it uses to write that summary now accept an extra option. When the option is set, a further piece of text is added after the base instruction. If you have supplied your own summary prompt, the base instruction inside it is swapped as well.
Why
This can change what ends up in the summaries Claude Code writes when it compacts a conversation.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not clear what the added text says or when Claude Code turns the option on.