Feature Request: Show remaining plan tokens instead of session context usage

Feature Request

Current behavior:
The token counter in Claude Code shows context window usage for the current session (counting up from 0).

Requested behavior:
Show remaining tokens from the user's plan/subscription (counting down), so users can see how much of their quota remains.

Why this would help

• Users on Claude Max or API plans want to know how much of their allocation they have left
• Counting down (remaining) is more intuitive for budget/quota tracking than counting up (used this session)
• Currently there's no way to see plan token balance without leaving the CLI to check the web console

Suggested implementation

Either:

1. Replace the current counter with remaining plan tokens
2. Add an option to toggle between "session context" and "plan remaining" views
3. Show both values

This would require exposing billing/quota information through the API.

---
Submitted via Claude Code