Under the hood
No documentation found
A new ToolProgressHint UI element type was added for tool-progress display
What
Claude Code's UI type mapping now includes a new entry: ToolProgress maps to a component called ToolProgressHint, joining the existing mappings for ToolUse, ToolResult, and ToolGroup.
Why
This suggests a dedicated visual element for showing progress on an in-flight tool call, separate from the existing tool-use and tool-result displays, though the finding doesn't describe what it looks like or when it appears.
Names in the bundleToolProgressHint
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
What ToolProgressHint displays and when it appears is not stated.