Ask the Side Question Without Paying for It
Mid-task you wonder what a flag does. Asking pollutes the session with a tangent that stays in context for the rest of the day.
So you don't ask. Which is worse.
Claude Code has a slash command for exactly this: /btw, for side questions you don't want in the main thread. /btw what does the --frozen-lockfile flag do? The answer appears in a dismissible overlay, and by design it's not meant to enter the conversation history.
Zero-cost curiosity, or close to it. You get the answer without growing the context you have been carefully protecting.
Small feature, and it removes a real tax: the one where you stop asking useful questions because asking is expensive.