[FEATURE] - Add a way to override the status message to be more consistent and professional

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'm trying to make the status message of Claude be more consistent and professional. The playful nature of the terminology makes it feel like a video game than a tool that's used for professional developers. Instead of "cogitating, thinking deeply, etc" just have it state something simple like "processing" so you know it's always doing the same thing.

Proposed Solution

Allow for an override for this status message. Either select a specific status message group, such as professional or allow for overrides.

{
"messageStyle": "professional"
}

Or allow custom terminology:
{
"statusMessages": {
"thinking": "Processing...",
"complete": "Done (${duration})"
}
}

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

API and model interactions

Use Case Example

I'm trying to work with other professional devs and show them the power of Claude without it being goofy or conversational. The goal is to allow professionals to use this as a tool and it supports them in this context without being distracting.

Additional Context

_No response_