[FEATURE] : Support drag-and-drop files/folders into prompt input

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Currently Claude Code only supports typing @ to reference files, which is slow when paths are long or deeply nested. Users often already have the file/folder visible in their OS file explorer or VSCode sidebar, but still have to type or search for it manually.

Proposed Solution

Allow users to drag-and-drop files or folders from the OS file explorer (Finder/Explorer) or VSCode sidebar directly into the Claude Code chat input. On drop, the path should be auto-inserted in @path/to/file format (same as typing @).

Should support:

• Single file drop
• Multiple files at once
• Folders (inserted as @path/to/folder/)
• Works in both CLI terminal and VSCode extension input box

Alternative Solutions

Typing @ with autocomplete works but is slow for long/nested paths.

Priority

Medium - Would be very helpful

Feature Category

Interactive mode (TUI)

Use Case Example

_No response_

Additional Context

No response.