Followup for #386.

When sending /compact, there's no replay for the user message, so we did not resolve the prompt. Same for /context.

I tried what happens when sending a /context or /compact while another prompt is running and Claude does not properly handle it. Instead, it responds with something like

I also noticed you sent /compact while I was working. That's a built-in CLI command (not a skill), which compacts the conversation context. It should be invoked directly in the CLI rather than as a message to me.

The important part is f52f214.