Under the hood
Useful2 Signal2
Accepting a slash-command completion now reports whether it ran or just filled the prompt.
What's wrong with this entry?
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What
Accepting a completion now reports back a submitted flag alongside the new input text, so the caller can tell a command that was accepted and run from one that only filled the prompt.
Evidence
submitted: c
Strings lifted out of the shipped bundle, so the claim above can be checked against them.