Feature Request: Support feeding selections to CC+vscode via "Code Actions"

What:

I'd love the ability to attach line selections (or even files & folders) from vscode to Claude Code directly, ala..

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Why:

• CC _seems_ to only know whatever I have selected in a single file.
• If the code path to work on spans multiple files, passing along _just_ the code I want to focus on is frustrating.
• @file_mentions may be too much (especially for very large files)
• Copy/pasting code directly to CC doesn't come with file&line referencing, e.g filename#L10-20

Outcome:
This would make it much easier to feed CC multiple code snippets from multiple files, with minimal context bloat and wasted tokens.