[FEATURE] Lightweight acknowledgement slash command for token efficient "Thank you"

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

After completing a long, complex task with Claude code, user naturally wants express appreciation or acknowledgement for a job well done. However sending a simple "Well done" message passes the full potentially lengthy conversation context to the model, consuming tokens for a simple social gesture, which while important to human is not required for the AI.

This creates an awkward choice, either 1) send the "Thank you" anyway, 2) clear the context then send a "thank you" to a now clueless AI, or 3) skip the acknowledgement which feels impersonal.

Proposed Solution

Add a lighweight slash command (like /thanks, /appreciate...etc.) that:

• accepts the message without invoking the model
• Return a simple predefined acknowledgment

Example

/thanks Great job! It works now as expected!

"Acknowledged. Ready for the next task when you are"

Alternative Solutions

I'm sending the "thank yous" anyway to the model, wasting tokens.

Priority

Low - Nice to have

Feature Category

Interactive mode (TUI)

Use Case Example

After any session where we solve an issue: I want to acknowledge the job well done. I know the AI does not need it, but I as the user do.

Additional Context

_No response_