Under the hood
Local slash commands can now append extra hidden 'meta' text blocks to their output messages
What
The internal function that assembles the messages produced by running a local slash command can now accept extra text blocks marked isMeta: true. When present, these are appended to the message list, and the result carries a metaTexts field noting they were added.
Why
This gives local slash commands a way to attach additional metadata-style content to their output alongside the regular command result.