The first three patches in this series simply fix some function documentation string problems I found while making the other patches. I'm marking them trivial because they don't affect any code. The rest of this series improves a bunch of the built-in Emacs help, accessed through `notmuch-help' (bound to "?" by default). In addition to improving some documentation strings, it introduces a new facility to `notmuch-help' to explicitly specify interactive documentation and documentation for prefixed commands. For example, where notmuch-help currently says m Invoke the notmuch mail composition window. with this series, it says m Compose new mail. C-u m ... and prompt for sender Feel free to point out commands I missed (or post patches for them). I went through all bound commands in hello, search, and show, as well as all prefixed commands, but didn't go through unbound, non-prefixed commands.