What
When you submit a slash command (a command typed with a leading /), Claude Code now records whether it was sent from the composer, the box where you type your prompts.
A prompt can also be expanded: Claude Code adds extra text to it and keeps the expanded version alongside what you typed.
Why
This changes how a prompt is processed between you pressing Enter and it reaching Claude, so what Claude receives can now include more than the text you typed.
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 text is added when a prompt is expanded, or when that happens.