OptionaldefaultOptionaliconFontAwesome icon name for the card header (e.g. 'clock'); default is the kit's mapping.
OptionalrenderReplaces the default arguments display (NOT the validation form — approvals stay native).
OptionalrenderReplaces the default result body for this tool's completed calls.
OptionaltitleCard title — a string, or a function of the tool call (status/args/result) and the active translations for per-state and localized titles.
Exact tool name (no wildcards — like renderer takeover, theming is per tool).
Keep the card expanded by default (like the kit's answer-bearing tools).