Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Remote ToolsArea: what it touches
In DevelopmentKind: in v2.1.242,
In DevelopmentSection of the release
What
Two attachment types for output from a tool host, one for its result lines and one for a notice about it, were added to the accepted set, along with a matching message subtype check.
Details
The notice is pushed during an attachment scan only when its producer hook is present, so whether it appears in practice depends on that producer being wired up.
Evidence
tool_host_result_lines
Strings lifted out of the shipped bundle, so the claim above can be checked against them.