Add Clipboard Copy Functionality for Current Prompt

Update Aug 15 2025: I made the ch TUI app to implement this feature outside of claude code - https://github.com/anthropics/claude-code/issues/5005#issuecomment-3192509380

Use case

In claude code, I often want to copy the text in my prompt to my clipboard. I save these prompts to sublime text, and then often paste it into vscode + copilot, or gemini.

Suggested shortcut

Would you consider adding a keyboard shortcut (eg: <kbd>Ctrl+Shift+c</kbd>) and action to copy the contents of the claude code prompt editor?

vim mode missing this feature too

Even in vim mode, there is no keyboard shortcut to copy the current prompt.

claude code is awesome. Thank you!