[FEATURE] Add option to hide/disable the "Esc to interrupt"

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

When using Claude Code for extended sessions or in focused workflows, the persistent "Esc to interrupt" prompt displayed during responses creates visual noise that can be distracting — especially for users who are already familiar with the shortcut and don't need the reminder. There is currently no way to suppress or hide this indicator, meaning experienced users have no way to get a cleaner, less cluttered terminal UI.

<img width="1492" height="156" alt="Image" src="https://github.com/user-attachments/assets/e108daf2-f988-4bb8-a9c3-cd56ce51ed3a" />

Proposed Solution

Add a configuration option (e.g. in .claude/settings.json or via a claude config command) such as "showEscHint": false that allows users to hide the "Esc to interrupt" indicator. Ideally, this would work as follows:

• New users see the hint by default (current behavior preserved).
• Users who want a minimal UI can toggle it off via config, e.g. claude config set showEscHint false.
• The change takes effect immediately on the next session without requiring any restart.

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_