One tool that I'm really excited to implement and use, but haven't found the time (and I'm sure someone else has already started), is a command that wraps any other command and exposes a global hotkey that, when pressed, shovels the last N lines to an LLM and asks it for advice.
Further down the line, I'm imagining being on a team where all developers' error logs are piped into a central feed and that feed is used to eliminate a large swathe of duplicated effort (how often is it the case where a whole team spends an hour or two debugging the same regression, broken dev env, etc?).