[FEATURE] register an "explain selection" command in the vscode extension

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

As a frequent code reviewer, I want to be able to select a code block in VSCode, hit a hotkey combination, and have Claude explain that code.

At the moment, it looks like the only way to do that is to select the code, then switch to the claude dialog and type "Explain". Which is a lot slower.

Proposed Solution

As it says - if you just register an "explain selection" command in the extension, VSCode users can do the binding to any hotkey and all will be well.

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

Other

Use Case Example

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Additional Context

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