[FEATURE] Ability to add newlines to messages in claude code by hitting shift enter just like in all chat systems.

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

I often hit shift enter to add a newline for my own readability and wind up sending half finished messages to claude causing server requests and wasted resources then esc/ctrl c and write more etc. It'd be great if that worked so I could format things in a clear way even if it only matters to me reading it

Proposed Solution

Add newline to prompt text without sending / submitting when shift is depressed and enter pressed.

Alternative Solutions

Introduce a configurable delay between enter and trying to action the request remotely so it can be intercepted without sending traffic and wasting energy/water.

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_