Rename resolved→done (#1-4, #11), closed→done (#13, #18), open (post-core)→open (#7), mark #9 as superseded by #21.
#16 multiline shell commands #17 _ scope (global vs local) #18 path expansion (~) #19 nested commands trigger prompt2 #20 simplify backtick return value #21 prompt redesign #22 implicit interactive commands (drop ! prefix) #23 general cleanup and refactor